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WO2018179267A1 - Projection-type video display device - Google Patents

Projection-type video display device Download PDF

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Publication number
WO2018179267A1
WO2018179267A1 PCT/JP2017/013357 JP2017013357W WO2018179267A1 WO 2018179267 A1 WO2018179267 A1 WO 2018179267A1 JP 2017013357 W JP2017013357 W JP 2017013357W WO 2018179267 A1 WO2018179267 A1 WO 2018179267A1
Authority
WO
WIPO (PCT)
Prior art keywords
projection
display device
video display
leg
adjustment mechanism
Prior art date
Application number
PCT/JP2017/013357
Other languages
French (fr)
Japanese (ja)
Inventor
克行 渡辺
政徳 高治
崇嗣 川端
加藤　修二
Original Assignee
マクセル株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by マクセル株式会社 filed Critical マクセル株式会社
Priority to PCT/JP2017/013357 priority Critical patent/WO2018179267A1/en
Publication of WO2018179267A1 publication Critical patent/WO2018179267A1/en

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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details

Definitions

  • the present invention relates to a projection-type image display device.
  • the projection-type image display device is applied to a large projection television, and for example, as already known in Patent Document 1 below, an image signal from the outside is input and the image is enlarged to display a panel or wall surface.
  • Patent Document 1 an image signal from the outside is input and the image is enlarged to display a panel or wall surface.
  • the apparatus is installed so that the bottom surface of the casing constituting the main body is parallel to the desk surface, so-called horizontal placement, or one side surface of the casing is placed on the desk surface. It is necessary to be able to be installed in various forms such as so-called vertical installation, which is installed in parallel on the top.
  • Patent Document 2 a projector device that facilitates adjustment of a projection angle by providing a support member for rotatably supporting a liquid crystal projector main body is already known.
  • a projection-type image display device in which the installation state can be appropriately set according to the usage state, for example, the horizontal or horizontal usage mode.
  • JP 2003-280091 A Japanese Patent No. 3057778 JP2011-158522A
  • the projection-type image display devices disclosed in the related art including the above-described Patent Document 3 are still insufficient for solving the problem when the device is installed on a desk and projected onto the surface. It was. That is, in the projection-type image display device according to the present invention, particularly when the device is installed on a desk and projects an enlarged image light, it is easily affected by unevenness and slight inclination on the surface of the desk. It was confirmed that a non-optimal screen was displayed.
  • the present invention is a projection-type image display device that requires portability, and appropriately includes the tilted state of the device according to the usage state (for example, the horizontal or horizontal usage mode). It is an object of the present invention to provide a projection-type image display apparatus that can be set in a fine installation state and that is excellent in practical use.
  • the configuration described in the claims is adopted.
  • An optical system including a projection lens for emitting enlarged image light is housed, and the image light emitted from the optical system is enlarged and projected toward a display surface on a part of the upper case of the housing.
  • a projection-type image display device to which means for attaching is attached, and the device can be installed on the bottom surface or one side surface of the housing made of the case.
  • a stand leg is integrated with the case and detachably accommodated, and the stand leg is taken out and the projection type image display is used in a vertical usage form with the one side as a bottom surface.
  • Projection type image display apparatus includes a first adjusting mechanism capable of adjusting the tilt angle of the location is provided.
  • the stand leg may further include a second adjustment mechanism that is housed and capable of adjusting an inclination angle of the device in a horizontal usage mode using the bottom surface of the casing. Furthermore, the stand leg is provided with a third adjustment mechanism that can adjust the height of the projection image display device with respect to the installation surface in a vertically placed usage form with the one side surface as a bottom surface. Also good.
  • a projection-type image excellent in practical use in which a fine installation state including an inclined state of the apparatus can be appropriately set according to a usage state of horizontal installation or horizontal installation.
  • a display device is provided.
  • the image light to be projected is enlarged and projected by a reflection mirror that constitutes a part of the projection optical system. I do.
  • FIG.1 and FIG.2 is a perspective view which shows the external appearance from each different angle
  • the said projection type video display apparatus has the main body 1, the bottom surface, and circumference
  • the lower case 2 (which will be described later in detail) and the upper case 3 installed and fixed on the upper surface thereof are integrally formed with four sides integrally formed and having a substantially rectangular outer shape.
  • the substantially central portion of the upper case 3 which is the upper surface of the projection display apparatus is formed so as to rise in a so-called hill shape (convex portion).
  • the part, that is, the open / close type mirror cover 31 is separated from other parts and attached to the outside so as to be rotatable by a predetermined angle.
  • a reflection mirror (free curved mirror) 32 that is a part of the optical system and is formed in a rotationally asymmetric manner is attached to the inside of the openable mirror cover 31 (see FIG. 2).
  • a lens optical system (not shown) is mainly disposed inside the convex portion of the cover portion 3 described above, and an opening 35 for guiding the projection light to the outside is formed (see FIG. (In FIG. 1, only the last part of the lens optical system is shown through the opening 35).
  • a rotary knob 33 for focus adjustment, a touch panel type operation unit 34 including various input push buttons, and the like are respectively attached.
  • the projection-type image display device has one side surface of the lower case 2 having a substantially rectangular outer shape (the side opposite to the side on which the openable mirror cover 31 is provided).
  • a pair of stand legs 5 and 5 that are integrally formed with the main body and have a structure that can be installed in accordance with the type of use of the projection display apparatus It has been.
  • the power supply inlet portion 6 into which the power cable is inserted for example, when supplying AC power from a commercial power supply to the device, Intake / exhaust port 7 which is an opening for inhaling / exhausting air from outside, and further, although not shown here, for inputting an image projected and displayed by the projection-type image display device from the outside
  • the terminal board is attached.
  • the bottom surface of the lower case 2 can be finely adjusted including the cooling air intake / exhaust port and the installation angle of the apparatus, which will be described in detail later.
  • An inclination adjusting leg 8 and the like are attached.
  • the weight of the entire apparatus is set to about 1.2 kg. That is, the projection-type image display device can be carried in a bag or the like together with a portable terminal, etc., and can be easily installed on a wall surface or the surface of a desk at a transport destination. It is designed to be able to project.
  • FIG. 3 is a cross-sectional view showing an example of the configuration of the optical system described above.
  • a DLP (Digital Light Processing) (registered trademark) apparatus 100 for example, emits light from a light source such as a semiconductor laser (not shown) according to an external video signal (for example, a video signal from a portable terminal).
  • modulation is performed by a reflection type light modulation device 100 including a micromirror or a reflection type liquid crystal panel (LCOS (registered trademark): Liquid crystal on silicon) or a transmission type light modulation device 100 including a liquid crystal panel.
  • LCOS reflection type liquid crystal panel
  • the image obtained thereby is synthesized by the TIR prism 101, projected onto the reflection mirror 32 via the projection lens system 102 composed of a plurality of lenses, reflected on the surface, and enlarged and projected.
  • the projection lens system 102 composed of a plurality of lenses described above is a free-form surface that is not rotationally symmetric and is necessary for correcting various distortions associated with enlarged projection of an image, such as distortion due to oblique incidence and trapezoidal distortion.
  • Various types of lenses are included, including shaped lenses.
  • the projection lens system 102 is movably mounted on the projection lens base 103, and moves a part of the projection lens or a lens group in the vertical direction in the figure by the action of the lens adjustment mechanism 104 in the figure. This makes it possible to adjust the focus performance.
  • a power supply unit for supplying necessary power to each part of the device, Axial fans, sirocco fans, heat pipes, cooling fins, etc. for cooling each part that generates heat, so-called cooling devices, for green (G) light, red (R) light, blue (B) light emission
  • Axial fans, sirocco fans, heat pipes, cooling fins, etc. for cooling each part that generates heat
  • so-called cooling devices for green (G) light, red (R) light, blue (B) light emission
  • An LED illumination unit including LEDs and the like, a control unit including a CPU for controlling the operation of each unit, a processor for performing video processing, and the like are appropriately arranged and stored.
  • the projection type image display apparatus basically has (A) a device body having a flat outer shape placed horizontally on a desk, table, or floor surface. And a horizontal usage mode in which an image is projected onto a surface (for example, an installed screen or wall surface) perpendicular thereto, and (B) the projection type video display device according to an embodiment of the present invention is set up in the vertical direction. Horizontal usage mode in which the main body of the device is installed vertically on a desk, table, or floor surface, and the image is projected onto the desk, table, or floor surface. Used in.
  • ⁇ A Horizontal usage>
  • the apparatus main body 1 is placed horizontally on the surface of the table T, for example, with the bottom face down, and the openable mirror cover 31 is opened. . Then, the position of the reflection mirror 32 attached to the inside of the openable mirror cover 31 is adjusted so as to face a screen or a wall surface (not shown) on which an image is projected.
  • the focus adjustment knob 33 described above may be adjusted again by appropriately rotating.
  • ⁇ B Vertical usage pattern>
  • a pair of stands attached integrally with the main body from the apparatus main body 1 in the state of FIG. 2 to one side surface of the lower case 2 (the side opposite to the side on which the openable mirror cover 31 is provided).
  • the legs 5 and 5 are respectively taken out by rotating in predetermined directions (see the arrows in the figure), and are in a state as shown in FIG.
  • the surface of the pair of stand legs 5 and 5 is installed so as to come into contact with the surface of the desk, for example, so that the apparatus main body 1 is in a vertically placed form.
  • FIG. 5 mentioned above an example of the terminal board 65 attached to the side surface of the lower case 2 is shown in detail.
  • the terminal board 65 includes USB terminals “USB A” and “USB B”, a VGA terminal “COMPUTER IN” for inputting a video signal from the computer, an HDMI (registered trademark) terminal, and an audio input.
  • a terminal “AUDIO IN” is provided.
  • FIG. 6A shows a mounting structure of the above-described pair of stand legs 5, 5, particularly one of them, on the side surface of the lower case 2.
  • the stand leg 5 is formed by, for example, injection molding of resin or the like and has an appearance shape that fits the side surface of the lower case 2.
  • the desired inclination described above in the thickness direction is used.
  • a block-shaped sliding stopper / lock component 56 is arranged inside the lower case 2.
  • the sliding stopper / locking part 56 has an opening into which the protrusion 52 on the stand leg 5 side is inserted, a ratchet mechanism described below, and the like. It is integrally formed.
  • the sliding stopper / locking part 56 penetrates through a washer 57, a wave washer (washer spring) 58, and another washer 59 (this washer rotates following the stand leg 5). It attaches with respect to the leg main-body part 51 mentioned above with the screw
  • FIG. 6B shows a cross section of the stand leg mounting structure having the above-described configuration after completion.
  • FIG. 7 shows a function / operation after completion of the stand leg mounting structure, in particular, a protrusion 52 extending from a part of the leg main body 51 and the protrusion 52 formed at the center thereof. It is the partially expanded view mainly shown on the sliding stopper / locking part 56 inserted in the opened part.
  • a convex portion 521 and a pair of semicircular concave portions 522 and 522 are formed on the outer periphery of the cylindrical projection portion 52 extending from a part of the leg main body portion 51.
  • the sliding stopper / lock component 56 into which the protrusion 52 is inserted includes a disk-shaped member at the center of the rectangular main body, and the substantially center of the disk-shaped member includes: An opening 561 is formed into which the cylindrical protrusion 52 of the leg main body 51 is inserted so as to be slidable in the circumferential direction.
  • the opening 561 allows the projection 521 of the projection 52 to rotate within a range of a predetermined angle (in this example, 0 degrees to 90 degrees). This is a fan-shaped opening that widens at an angle (90 degrees in this example). Further, the disk-shaped member is a so-called for holding the projection 52 (that is, the stand leg 5) stably at a predetermined angle (in this example, 0 degrees and 90 degrees) together with the opening.
  • a ratchet mechanism 562 is provided.
  • the mounting structure of the stand leg including the locking mechanism and the ratchet mechanism using the washer spring described above there is no problem (for example, unusable due to forgetting to transport) as when the stand leg is separated.
  • the optimum position can be obtained without making a mistake in the direction of taking out and, for example, by clicking sound by the ratchet mechanism described above.
  • By confirming the setting it is possible to easily fix stably at a desired take-off angle (that is, 90 degrees).
  • FIGS. 8A and 8B are a top view and a side view of a so-called screw-type adjusting mechanism, which is an example of the tilt adjusting mechanism described above.
  • the tilt adjusting mechanism 100 is made of, for example, a cylindrical member made of metal or resin, and has a thread groove 110 formed on the outer periphery thereof.
  • a head 120 having a groove 121 into which an end of the coin can be inserted, and a contact (leg) portion 130 in contact with the surface of a desk or table.
  • openings 140 and 140 are formed in a part of the pair of stand legs 5 and 5, and an inclination adjusting mechanism 100 is formed on the inner peripheral surface thereof.
  • a thread groove (not shown here) is formed to be screwed with the thread groove 110 of the cylindrical member.
  • the cylindrical adjustment mechanisms 100 and 100 are inserted into the openings 140 and 140 while screwing the screw grooves to each other.
  • the projection type image display device for the surface of the desk or table is in a state where the device is set up, that is, B: in the vertical usage mode, the end of a coin such as a ten-yen coin is displayed.
  • the contact portion 130 can adjust the protrusion from the bottom surface of the stand leg 5, and thus the tilt angle of the projection display apparatus can be adjusted. It will be apparent to those skilled in the art that this is possible.
  • the positional relationship with the surface of the projected video (image) is shown along with the change in the tilt angle of the device, but in this figure, for convenience of illustration, it is replaced with a projection type video display device.
  • the surface on which the apparatus is set up and on which video (image) is projected is drawn by a solid line or a chain line by changing its position.
  • the height “t” of the tilt adjustment mechanism 100 is also smaller than the thickness “T” of the stand leg 5 (T ⁇ t), for example, depending on the mounting position. It is preferable to set. Such a setting would be preferable without tilting the tilt adjusting mechanism 100 popping out when the stand leg 5 is housed in the side surface of the apparatus.
  • the upper part of the opening 140 of the stand leg 5 has a dimension in which an end of a coin such as a ten-yen coin can be inserted.
  • a screw groove for screwing with the screw groove 110 of the cylindrical member constituting the inclination adjusting mechanism 100 described above is indicated by reference numeral 141.
  • FIGS. 11A and 11B are a side view and a top view of a projection-type image display apparatus having a so-called slide-type tilt adjustment mechanism 100 ′ different from the above on the stand leg 5.
  • this slide type inclination adjusting mechanism 100 includes a projection type by moving its position (indicated by an arrow in the figure) including A: horizontal usage and B: vertical usage. The tilt state of the video display device is adjusted.
  • two adjustment mechanisms 100 ′ and 100 ′ are attached to each stand leg 5. More specifically, a front adjustment mechanism 100′-f and a rear adjustment mechanism 100′-b are attached to the stand leg 5 on the left side of the drawing at positions close to the left and right ends, respectively. .
  • each of these adjustment mechanisms 100 '... is provided with a contact (leg) portion 130' for contacting the surface of a desk or table. More specifically, the front adjustment mechanism 100'-f has one contact (leg) portion 130 ', and the rear adjustment mechanism 100'-b has two contact (leg) portions 130'. 'Are attached to the surfaces that are orthogonal to each other. And each of them can move in the direction shown by the arrow in the figure, for example.
  • FIGS. 12 to 15 show an example of a mechanism for changing the position (projection amount) of the contact (leg) portion 130 ′ by moving the position of the adjusting mechanism 100 ′ described above.
  • the adjustment mechanism 100 ′ is formed so as to be movable (slidable) along the outer peripheral surface of the stand leg 5 (in this example, the cross-section is substantially “col”). It is a slide member formed in the shape of "".
  • a guide groove g is formed on a part of the outer periphery of the stand leg 5 at a predetermined inclination angle, and a part of the adjusting mechanism 100 ′ (in this example, it extends inward) in the guide groove g. Are inserted and attached. That is, according to such a configuration, the adjustment mechanism 100 ′ can move in the left-right direction in the drawing (see the arrow in FIG.
  • the adjustment mechanism 100 ′ moves in the vertical direction along with the movement. Move to.
  • the height of the contact (leg) portion 130 ′ attached to a part (for example, the bottom portion) of the adjustment mechanism 100 ′ can be freely adjusted.
  • FIGS. 13 (a) and 13 (b) by providing a mechanism similar to that described above also in the orthogonal direction, as shown in FIG.
  • the adjustment mechanism 100 ′ By moving the adjustment mechanism 100 ′ (particularly, the rear adjustment mechanism 100′b) provided in a part, the height of the contact (leg) part 130 ′ attached to a part (for example, the bottom and side surfaces) of the adjustment mechanism 100 ′. (Height in the y-axis direction and z-axis direction in the figure) can be freely adjusted.
  • the adjustment mechanism 100 ′ which is a slide member provided on a part of the stand leg 5, is also used in the A: horizontal usage mode shown in FIG.
  • the projection type image display apparatus has two contact (leg) portions 130 ′ of the inclination adjusting leg 8 located on the bottom surface and the two rear adjusting mechanisms 100′-b of the stand leg 5. (3 points in total: see FIG.
  • the openable mirror cover 31 having a reflection mirror (free-form mirror) 32 attached therein is usually provided on the upper surface side of the apparatus. Therefore, in particular, when used in the usage mode of B: vertical installation, the distance to the surface of the desk or table on which the projected video (image) is displayed is determined by the position of the reflection mirror 32 in the main body 1. .
  • FIG. 17 it is proposed to adjust the position of the stand leg 5 with respect to the apparatus body 1, that is, the height (length) of the stand leg.
  • the protrusion 52 (see FIGS. 6A and 7) extending from a part of the leg main body 51 of the stand leg 5 is extended.
  • a screw groove 523 is formed on the inner peripheral surface thereof, and a screw is inserted into the screw groove 523 inside the lower case 2 (see FIG. 6A).
  • a screw 600 having a screw groove 601 to be mated is fixedly attached. According to this configuration, when the pair of stand legs 5 are taken out from the lower case 2, the heights can be independently adjusted to a desired height (length) by rotating them. Is possible.
  • FIGS. 18A and 18B effects of the above-described stand leg height adjusting mechanism will be described.
  • B by rotating the pair of stand legs 5 and adjusting their heights (see arrows in the figure). It is possible to adjust the size of the image light placed on a desk or table and enlarged and projected to a desired size (see FIG. 18B).
  • the pair of stand legs 5 are A suitable screen can be obtained by appropriately adjusting the heights (see “d1” and “d2” in FIG. 18A) independently of each other.
  • a terminal board 65 having a terminal for inputting a video signal from a portable terminal) and a power inlet portion 6 into which a power cable is inserted are attached to the side surface of the lower case 2 forming the main body 1. Yes.
  • a plurality of cables are connected to the side surface of the projection display apparatus.
  • the operator's finger is caught on these cables. Is a force applied to the power inlet 6 and the terminal board 65, and therefore the projection type video display device moves (projection image is disturbed) or falls (projection image disappears). Conceivable.
  • the terminal board 65 and the power inlet portion 6 are located below the device, particularly in the “vertical usage mode”. Is attached in position. That is, when the terminal board 65 and the power inlet 6 are used in a state where the pair of stand legs 5 and 5 are taken out and the apparatus main body 1 is stood up, the terminal board 65 and the power inlet section 6 come to positions close to the taken out stand legs 5 and 5. It is installed as follows.
  • the installation state can be appropriately changed according to the use situation by a simple operation, and the projection type image display device is excellent in practical use. Is provided.
  • the present invention is not limited to the above-described embodiment, and it is obvious that various modifications are included.
  • the above-described embodiments have been described in detail for easy understanding of the present invention. Therefore, the present invention is not necessarily limited to those having all the configurations described.
  • a part of the configuration of a certain embodiment can be replaced with another configuration, and another configuration can be added to the configuration of a certain embodiment.
  • SYMBOLS 1 Main body (casing), 2 ... Lower case, 3 ... Upper case, 31 ... Open / close-type mirror cover, 32 ... Reflection mirror (free-form surface mirror), 35 ... Opening part 5, 5 ... Stand leg, 100 ... Screw Type tilt adjustment mechanism, 100 '... slide type tilt adjustment mechanism, 130' ... contact (leg) part, g ... guide groove, 52 ... projection part, 523 ... screw groove, screw ... 600.

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  • General Physics & Mathematics (AREA)
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Abstract

A projection-type video display device houses, within a housing comprising a lower case (2) and an upper case, an optical system including a projection lens and designed to emit video light to be enlarged and projected, wherein a means for enlarging and projecting the video light emitted from the optical system toward a display surface is attached to part of the upper case. A pair of stand legs (5) is deployably housed in one side surface of the housing, and each stand leg (5) is provided with: a first adjustment mechanism (100) capable of adjusting the inclination angle of the projection-type video display device when the stand leg (5) has been deployed and the projection-type video display device is being used in a vertical orientation mode with the one side surface as a bottom surface; a second adjustment mechanism capable of adjusting the inclination angle of the device when the stand leg (5) is housed and the projection-type video display device is being used in a horizontal orientation mode using the bottom surface of the housing; and a third adjustment mechanism capable of adjusting the height with respect to the installation surface of the projection-type video display device when the stand leg (5) has been deployed and the projection-type video display device is being used in the vertical orientation mode with the one side surface as the bottom surface.

Description

投射型映像表示装置Projection-type image display device
　本発明は、投射型映像表示装置に関する。 The present invention relates to a projection-type image display device.
　投射型映像表示装置は、大型のプロジェクションテレビに適用されると共に、例えば、以下の特許文献１にも既に知られるように、外部からの映像信号を入力してその映像を拡大してパネルや壁面等に投射するための手段としても広く利用されてきており、更に、近年においては、室内の壁面や机の表面などに簡易に投射することを可能にするための可搬な映像表示手段としての機能も期待されている。そのため、当該装置を、例えば、机上において、その本体を構成する筺体の底面が机表面上に対して平行になるように設置する、いわゆる、横置き、又は、当該筺体の一の側面を机表面上に平行に設置する、いわゆる、縦置きなど、様々な形態での設置が可能であることが必要となっている。 The projection-type image display device is applied to a large projection television, and for example, as already known in Patent Document 1 below, an image signal from the outside is input and the image is enlarged to display a panel or wall surface. In recent years, it has been widely used as a means for projecting onto a wall or the like. Functionality is also expected. Therefore, for example, on the desk, the apparatus is installed so that the bottom surface of the casing constituting the main body is parallel to the desk surface, so-called horizontal placement, or one side surface of the casing is placed on the desk surface. It is necessary to be able to be installed in various forms such as so-called vertical installation, which is installed in parallel on the top.
　また、以下の特許文献２によれば、液晶プロジェクタ本体部を回動自在に支持するための支持部材を備えることにより、投射角度の調整を容易にするプロジェクタ装置も既に知られている。 Further, according to Patent Document 2 below, a projector device that facilitates adjustment of a projection angle by providing a support member for rotatably supporting a liquid crystal projector main body is already known.
　加えて、以下の特許文献３によれば、その使用状態、例えば、横置きや横置きの使用形態に応じて適切にその設置状態を設定可能である投射型映像表示装置が開示されている。 In addition, according to the following Patent Document 3, a projection-type image display device is disclosed in which the installation state can be appropriately set according to the usage state, for example, the horizontal or horizontal usage mode.
特開２００３－２８００９１号公報JP 2003-280091 A 特許第３０５７７７８号公報Japanese Patent No. 3057778 特開２０１１－１５８５２２号公報JP2011-158522A
　しかしながら、上述した特許文献３を含め、従来技術に開示された投射型映像表示装置では、装置を机上に設置してその表面上に投射した場合における課題の解決については、なお、不十分であった。即ち、本発明に係る投射型映像表示装置では、特に、装置を机上に設置して映像光を拡大投射する場合では、当該机の表面上の凹凸や僅かな傾斜による影響を受けやすく、そのため、必ずしも最適ではない画面が表示されてしまうことが確認された。 However, the projection-type image display devices disclosed in the related art including the above-described Patent Document 3 are still insufficient for solving the problem when the device is installed on a desk and projected onto the surface. It was. That is, in the projection-type image display device according to the present invention, particularly when the device is installed on a desk and projects an enlarged image light, it is easily affected by unevenness and slight inclination on the surface of the desk. It was confirmed that a non-optimal screen was displayed.
　そこで、本発明は、可搬性が要求される投射型映像表示装置であって、その使用状態（例えば、横置きや横置きの使用形態）に応じて、適切に、装置の傾斜状態を含めた微細な設置状態が設定可能である、実用的にも優れた投射型映像表示装置を提供することをその目的とする。 Therefore, the present invention is a projection-type image display device that requires portability, and appropriately includes the tilted state of the device according to the usage state (for example, the horizontal or horizontal usage mode). It is an object of the present invention to provide a projection-type image display apparatus that can be set in a fine installation state and that is excellent in practical use.
　上記の目的を達成するため、本発明によれば、請求の範囲に記載の構成を採用するものであり、その一例を挙げるならば、下側ケースと上側ケースからなる筺体の内部に、少なくとも、投射レンズを含む、拡大投射される映像光を出射するための光学系を収納し、前記筺体の上側ケースの一部に、前記光学系から射出される映像光を被表示面に向かって拡大投射する手段が取り付けられた投射型映像表示装置であって、当該装置は、前記ケースからなる前記筺体の底面又はその一側面により設置可能であるものにおいて、前記筺体の前記一側面には、一対のスタンド脚が、当該ケースと一体に、かつ、取り出し可能に収納されており、前記スタンド脚は、取り出して前記一側面を底面とした縦置きの使用形態において、前記投射型映像表示装置の傾斜角度を調整可能な第１の調整機構を備えている投射型映像表示装置が提供される。 In order to achieve the above object, according to the present invention, the configuration described in the claims is adopted. For example, in the housing composed of the lower case and the upper case, at least, An optical system including a projection lens for emitting enlarged image light is housed, and the image light emitted from the optical system is enlarged and projected toward a display surface on a part of the upper case of the housing. A projection-type image display device to which means for attaching is attached, and the device can be installed on the bottom surface or one side surface of the housing made of the case. A stand leg is integrated with the case and detachably accommodated, and the stand leg is taken out and the projection type image display is used in a vertical usage form with the one side as a bottom surface. Projection type image display apparatus includes a first adjusting mechanism capable of adjusting the tilt angle of the location is provided.
　本発明によれば、前記スタンド脚は、更に、収納して前記筺体の前記底面による横置きの使用形態において当該装置の傾斜角度を調整可能な第２の調整機構を備えてもよい。更には、前記スタンド脚は、取り出して前記一側面を底面とした縦置きの使用形態において、当該投射型映像表示装置の前記設置面に対する高さを調整可能な、第３の調整機構を備えてもよい。 According to the present invention, the stand leg may further include a second adjustment mechanism that is housed and capable of adjusting an inclination angle of the device in a horizontal usage mode using the bottom surface of the casing. Furthermore, the stand leg is provided with a third adjustment mechanism that can adjust the height of the projection image display device with respect to the installation surface in a vertically placed usage form with the one side surface as a bottom surface. Also good.
　上述した本発明によれば、例えば、横置きや横置きの使用形態に応じて、適切に、装置の傾斜状態を含めた微細な設置状態が設定可能である実用的にも優れた投射型映像表示装置が提供される。 According to the above-described present invention, for example, a projection-type image excellent in practical use in which a fine installation state including an inclined state of the apparatus can be appropriately set according to a usage state of horizontal installation or horizontal installation. A display device is provided.
本発明の一実施の形態に係る投射型映像表示装置の外観を示す斜視図である。It is a perspective view which shows the external appearance of the projection type video display apparatus concerning one embodiment of this invention. 本発明の一実施の形態に係る投射型映像表示装置の外観を示す他の角度からの斜視図である。It is a perspective view from the other angle which shows the external appearance of the projection type video display apparatus concerning one embodiment of this invention. 本発明の一実施の形態に係る投射型映像表示装置における光学系の一例を示す一部拡大断面図である。It is a partially expanded sectional view which shows an example of the optical system in the projection type video display apparatus concerning one embodiment of this invention. 本発明の一実施の形態に係る投射型映像表示装置の横置きの使用形態を示す断面図である。It is sectional drawing which shows the usage condition of horizontal installation of the projection type video display apparatus concerning one embodiment of this invention. 本発明の一実施の形態に係る投射型映像表示装置から一対のスタンド脚を取り出した状態を示す斜視図である。It is a perspective view which shows the state which took out a pair of stand leg from the projection type video display apparatus concerning one embodiment of this invention. 本発明の一実施の形態に係る投射型映像表示装置から一対のスタンド脚を取り出して縦置きした状態を示す斜視図である。It is a perspective view which shows the state which took out a pair of stand leg from the projection type video display apparatus concerning one embodiment of the present invention, and placed it vertically. 本発明の一実施の形態に係る投射型映像表示装置を縦置きした状態で使用する場合の動作を説明する断面図である。It is sectional drawing explaining operation | movement in the case of using the projection type video display apparatus concerning one embodiment of this invention in the state installed vertically. 本発明の一実施の形態に係る投射型映像表示装置の本体部へのスタンド脚の取付構造を説明する一部拡大展開斜視図である。It is a partial expansion expansion perspective view explaining the attachment structure of the stand leg to the main-body part of the projection type video display apparatus concerning one embodiment of the present invention. 本発明の一実施の形態に係る投射型映像表示装置のスタンド脚の取付構造の完成後の断面を示す一部拡大断面図である。It is a partially expanded sectional view which shows the cross section after the completion of the attachment structure of the stand leg of the projection type video display apparatus concerning one embodiment of this invention. 本発明の一実施の形態に係る投射型映像表示装置のスタンド脚の取付構造の完成後の機能／動作を説明するための一部拡大平面図である。It is a partially expanded plan view for demonstrating the function / operation | movement after completion of the attachment structure of the stand leg of the projection type video display apparatus concerning one embodiment of this invention. 本発明の一実施の形態に係る投射型映像表示装置の外観を示す斜視図である。It is a perspective view which shows the external appearance of the projection type video display apparatus concerning one embodiment of this invention. 本発明の一実施の形態に係る投射型映像表示装置の外観を示す他の角度からの斜視図である。It is a perspective view from the other angle which shows the external appearance of the projection type video display apparatus concerning one embodiment of this invention. 本発明の一実施の形態に係る投射型映像表示装置における光学系の一例を示す一部拡大断面図である。It is a partially expanded sectional view which shows an example of the optical system in the projection type video display apparatus concerning one embodiment of this invention. 本発明の一実施の形態に係る投射型映像表示装置の横置きの使用形態を示す断面図である。It is sectional drawing which shows the usage condition of horizontal installation of the projection type video display apparatus concerning one embodiment of this invention. 本発明の一実施の形態に係る投射型映像表示装置から一対のスタンド脚を取り出した状態を示す斜視図である。It is a perspective view which shows the state which took out a pair of stand leg from the projection type video display apparatus concerning one embodiment of this invention. 本発明の一実施の形態に係る投射型映像表示装置から一対のスタンド脚を取り出して縦置きした状態を示す斜視図である。It is a perspective view which shows the state which took out a pair of stand leg from the projection type video display apparatus concerning one embodiment of the present invention, and placed it vertically. 本発明の一実施の形態に係る投射型映像表示装置を縦置きした状態で使用する場合の動作を説明する断面図である。It is sectional drawing explaining operation | movement in the case of using the projection type video display apparatus concerning one embodiment of this invention in the state installed vertically. 本発明の一実施の形態に係る投射型映像表示装置の本体部へのスタンド脚の取付構造を説明する一部拡大展開斜視図である。It is a partial expansion expansion perspective view explaining the attachment structure of the stand leg to the main-body part of the projection type video display apparatus concerning one embodiment of the present invention.
　以下、本発明の一実施の形態に係る投射型映像表示装置について、添付の図面を参照しながら、詳細に説明する。なお、ここでは、その一実施の形態として、投射すべき映像光を投射光学系の一部を構成する反射ミラーにより拡大投射する、特に、反射型ミラー方式の投射型映像表示装置を中心として説明を行う。 Hereinafter, a projection type image display apparatus according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. Here, as an embodiment of the present invention, the image light to be projected is enlarged and projected by a reflection mirror that constitutes a part of the projection optical system. I do.
　＜投射型映像表示装置の全体構成＞
　まず、図１及び図２は、投射型映像表示装置のそれぞれ異なる角度からの外観を示す斜視図であり、これらの図において、当該投射型映像表示装置は、その本体１を、底面と周囲の４側面を一体に形成した、外形が略矩形状の下側ケース２（なお、その詳細は、後にも説明する）と、その上面に設置されて固定される上側ケース３により構成している。 <Overall configuration of projection-type image display device>
First, FIG.1 and FIG.2 is a perspective view which shows the external appearance from each different angle | corner of a projection type video display apparatus, In these figures, the said projection type video display apparatus has the main body 1, the bottom surface, and circumference | surroundings. The lower case 2 (which will be described later in detail) and the upper case 3 installed and fixed on the upper surface thereof are integrally formed with four sides integrally formed and having a substantially rectangular outer shape.
　また、これらの図からも明らかなように、この投射型映像表示装置の上面である上側ケース３の略中央部が、いわゆる、丘陵状に盛り上がって形成されており（凸状部）、その一部、即ち、開閉式ミラーカバー３１が、他の部分から切り離されると共に、外側に向かって所定の角度だけ回動可能に取り付けられている。そして、この開閉式ミラーカバー３１の内側には、光学系の一部である、凸面形状で回転非対称に形成された反射ミラー（自由曲面ミラー）３２が取り付けられる（図２を参照）と共に、また、上述したカバー部３の凸状部の内部には、主として、ここでは図示しないレンズ光学系が配置されており、そして、投射光を外部に導くための開口部３５が形成されている（図１を参照。なお、この図１では、レンズ光学系の最後の一部だけが当該開口部３５を介して示されている）。また、上側ケース３の表面には、フォーカス調整用の回転ツマミ３３や、各種入力用のプッシュボタンからなるタッチパネル式操作部３４などが、それぞれ、取り付けられている。 Further, as is clear from these drawings, the substantially central portion of the upper case 3 which is the upper surface of the projection display apparatus is formed so as to rise in a so-called hill shape (convex portion). The part, that is, the open / close type mirror cover 31, is separated from other parts and attached to the outside so as to be rotatable by a predetermined angle. In addition, a reflection mirror (free curved mirror) 32 that is a part of the optical system and is formed in a rotationally asymmetric manner is attached to the inside of the openable mirror cover 31 (see FIG. 2). A lens optical system (not shown) is mainly disposed inside the convex portion of the cover portion 3 described above, and an opening 35 for guiding the projection light to the outside is formed (see FIG. (In FIG. 1, only the last part of the lens optical system is shown through the opening 35). Further, on the surface of the upper case 3, a rotary knob 33 for focus adjustment, a touch panel type operation unit 34 including various input push buttons, and the like are respectively attached.
　また、特に、上記の図２から明らかなように、投射型映像表示装置は、その外形略矩形状の下側ケース２の一側面（上記開閉式ミラーカバー３１が設けられた側とは反対側の側面）には、以下にも詳細に述べるが、投射型映像表示装置の使用形態に対応して設置可能な構造を備えた、本体と一体に形成された一対のスタンド脚５、５が取り付けられている。また、この下側ケース２の他の側面には、後にも説明するが、更に、商用電源からの交流電力を当該装置に供給する場合など電源ケーブルが差し込まれる電源インレット部６、内部の冷却を行うための空気を外部から吸入・排気するための開口部である吸入・排気口７、更には、ここでは図示しないが、当該投射型映像表示装置により投射表示される映像を外部から入力するための端子板などが取り付けられている。また、下側ケース２の底面にも、図示しないが、冷却空気の吸入・排気口や、更には、後にも詳細に説明するが、当該装置の設置角度を含めて微細な調整を可能とするための傾斜調整脚８などが取り付けられている。 In particular, as is clear from FIG. 2 described above, the projection-type image display device has one side surface of the lower case 2 having a substantially rectangular outer shape (the side opposite to the side on which the openable mirror cover 31 is provided). As will be described in detail below, a pair of stand legs 5 and 5 that are integrally formed with the main body and have a structure that can be installed in accordance with the type of use of the projection display apparatus It has been. Further, on the other side surface of the lower case 2, as will be described later, the power supply inlet portion 6 into which the power cable is inserted, for example, when supplying AC power from a commercial power supply to the device, Intake / exhaust port 7 which is an opening for inhaling / exhausting air from outside, and further, although not shown here, for inputting an image projected and displayed by the projection-type image display device from the outside The terminal board is attached. Although not shown, the bottom surface of the lower case 2 can be finely adjusted including the cooling air intake / exhaust port and the installation angle of the apparatus, which will be described in detail later. An inclination adjusting leg 8 and the like are attached.
　加えて、上述した投射型映像表示装置の外形寸法は、その一例として、図１において矢印で示す幅＝Ｗ、奥行き＝Ｄ、高さ＝Ｈが、それぞれ、Ｗ＝２６５ｍｍ、Ｄ＝２００ｍｍ、Ｈ＝７０ｍｍに設定されており、いわゆる、Ａ４サイズに対応する寸法となっている。また、その重量は、装置全体として約１．２ｋｇに設定されている。即ち、当該投射型映像表示装置は、携帯端末などと共に、バッグ等に収容して可搬が可能であり、そして、搬送先において、机上に設置して壁面や机の表面などに簡易に設置して、投射することが可能となるように設計されている。 In addition, as an example of the external dimensions of the projection-type image display device described above, width = W, depth = D, and height = H indicated by arrows in FIG. 1 are W = 265 mm, D = 200 mm, and H, respectively. = 70 mm, which corresponds to a so-called A4 size. The weight of the entire apparatus is set to about 1.2 kg. That is, the projection-type image display device can be carried in a bag or the like together with a portable terminal, etc., and can be easily installed on a wall surface or the surface of a desk at a transport destination. It is designed to be able to project.
　＜光学系＞
　ここで、図３は、上述した光学系の構成の一例を示した断面図である。例えば、ここでは図示しない半導体レーザ等からなる光源からの光を、外部からの映像信号（例えば、携帯端末からの映像信号）に応じて、例えば、ＤＬＰ（デジタルライトプロセッシング）（登録商標）装置１００など、マイクロミラーや反射型液晶パネル（ＬＣＯＳ（登録商標）：Ｌｉｑｕｉｄ　ｃｒｙｓｔａｌ　ｏｎ　ｓｉｌｉｃｏｎ）からなる反射式や、液晶パネル等からなる透過式の光変調装置１００により変調する。それによって得られた映像は、ＴＩＲプリズム１０１で合成され、複数のレンズからなる投射レンズ系１０２を介して反射ミラー３２に投射され、その表面で反射されて拡大投射される。なお、上述した複数のレンズから構成される投射レンズ系１０２は、映像の拡大投射に伴う各種の歪、例えば、斜め入射による歪や台形歪などを補正するために必要な、回転対称でない自由曲面形状のレンズ等を含めて、各種のレンズを含んでいる。また、投射レンズ系１０２は、投射レンズベース１０３上に移動可能に搭載されており、図のレンズ調整機構１０４の働きにより、図の上下方向に投射レンズの一部のレンズ又はレンズ群を移動させることでフォーカス性能の調整が可能となる。 <Optical system>
Here, FIG. 3 is a cross-sectional view showing an example of the configuration of the optical system described above. For example, a DLP (Digital Light Processing) (registered trademark) apparatus 100, for example, emits light from a light source such as a semiconductor laser (not shown) according to an external video signal (for example, a video signal from a portable terminal). For example, modulation is performed by a reflection type light modulation device 100 including a micromirror or a reflection type liquid crystal panel (LCOS (registered trademark): Liquid crystal on silicon) or a transmission type light modulation device 100 including a liquid crystal panel. The image obtained thereby is synthesized by the TIR prism 101, projected onto the reflection mirror 32 via the projection lens system 102 composed of a plurality of lenses, reflected on the surface, and enlarged and projected. Note that the projection lens system 102 composed of a plurality of lenses described above is a free-form surface that is not rotationally symmetric and is necessary for correcting various distortions associated with enlarged projection of an image, such as distortion due to oblique incidence and trapezoidal distortion. Various types of lenses are included, including shaped lenses. The projection lens system 102 is movably mounted on the projection lens base 103, and moves a part of the projection lens or a lens group in the vertical direction in the figure by the action of the lens adjustment mechanism 104 in the figure. This makes it possible to adjust the focus performance.
　また、この図では、上述した光学系により拡大されて反射ミラー３２上に投射され（図中の破線を参照）、その後、その表面で反射されて、例えば、スクリーンや壁面や机やテーブルなどの被投射表面上に投射され、当該映像光の上限光ＬＵと下限光ＬＤが、図中に矢印で示されている。 Moreover, in this figure, it is enlarged by the optical system mentioned above, is projected on the reflective mirror 32 (refer the broken line in a figure), and is reflected by the surface after that, for example, a screen, a wall surface, a desk, a table etc. The upper limit light LU and the lower limit light LD of the image light projected on the projection surface are indicated by arrows in the drawing.
　そして、反射ミラー３２として、自由曲面レンズを含む投射レンズ系１０２からなる光学系を採用することにより、当該装置から映像投射面までの距離が短くても十分に拡大された映像を投射して表示可能な優れた投射性能を確保している。例えば、当該投射型映像表示装置を、映像投射面にその先端部を当接した状態で配置し、その状態で映像の投射を行った場合、３０．５インチ×１９．１インチ（対角３６インチの画面サイズ１６：１０）の画面を得ることができた。 Then, by adopting an optical system composed of a projection lens system 102 including a free-form surface lens as the reflection mirror 32, a sufficiently enlarged image is projected and displayed even if the distance from the device to the image projection surface is short. Ensures excellent projection performance possible. For example, when the projection-type image display device is disposed with its tip in contact with the image projection surface and image projection is performed in this state, 30.5 inches × 19.1 inches (diagonal 36) An inch screen size of 16:10) could be obtained.
　上記に加え、投射型映像表示装置の筺体である下側ケース２と上側ケース３の内部には、ここでは図示はしないが、例えば、装置の各部に必要な電力を供給するための電源ユニット、発熱を伴う各部の冷却を行うための軸流ファンやシロッコファンやヒートパイプや冷却フィン等の、いわゆる、冷却装置、緑色（Ｇ）光、赤色（Ｒ）光、青色（Ｂ）光発光用のＬＥＤ等を含むＬＥＤ照明ユニット、更には、各部の動作を制御するＣＰＵ等を含む制御部、映像処理等を行うプロセッサーなどが、適宜、配置されて収納されている。 In addition to the above, inside the lower case 2 and the upper case 3 which are the casings of the projection display apparatus, although not shown here, for example, a power supply unit for supplying necessary power to each part of the device, Axial fans, sirocco fans, heat pipes, cooling fins, etc. for cooling each part that generates heat, so-called cooling devices, for green (G) light, red (R) light, blue (B) light emission An LED illumination unit including LEDs and the like, a control unit including a CPU for controlling the operation of each unit, a processor for performing video processing, and the like are appropriately arranged and stored.
　以上にその概略を述べた投射型映像表示装置の使用形態について、以下に説明する。即ち、本発明の一実施の形態に係る投射型映像表示装置は、基本的には、（Ａ）平板状の外形を有する装置本体を、机やデーブル、或いは、床の表面に横置きに設置し、それに垂直となる面（例えば、設置したスクリーンや壁面など）に映像を投射する横置きの使用形態、（Ｂ）本発明の一実施の形態に係る投射型映像表示装置を垂直方向に立てた状態で使用する使用形態であり、装置本体を、机やデーブル、或いは、床の表面に縦置きに設置し、そして、当該机やテーブル、床の表面に映像を投射する横置きの使用形態で使用される。 The usage mode of the projection type video display apparatus, the outline of which is described above, will be described below. That is, the projection type image display apparatus according to an embodiment of the present invention basically has (A) a device body having a flat outer shape placed horizontally on a desk, table, or floor surface. And a horizontal usage mode in which an image is projected onto a surface (for example, an installed screen or wall surface) perpendicular thereto, and (B) the projection type video display device according to an embodiment of the present invention is set up in the vertical direction. Horizontal usage mode in which the main body of the device is installed vertically on a desk, table, or floor surface, and the image is projected onto the desk, table, or floor surface. Used in.
　＜Ａ：横置きの使用形態＞
　この使用形態では、上記の図１や図２に示したように、装置本体１を、例えば、テーブルＴの表面に、その底面を下にして横置きに設置し、開閉式ミラーカバー３１を開く。そして、当該開閉式ミラーカバー３１の内側に取り付けられた反射ミラー３２が、映像が投射されるスクリーンや壁面（図示せず）に対向するように位置を調整する。なお、その際、上述した自由曲面レンズを含む投射レンズ系からなる光学系の採用により、スクリーンまでの距離が小さくても（例えば、スクリーンまでの距離ｄ＝０～数十ｃｍ）、即ち、スクリーンに隣接して設置されても、十分な大きさの投射映像が得られる。なお、スクリーンまでの投射距離ｄの変化により所望のフォーカスが得られなくなる場合には、上述したフォーカス調整用のツマミ３３を、適宜、回転することにより、再度、調整すればよい。 <A: Horizontal usage>
In this mode of use, as shown in FIG. 1 and FIG. 2, the apparatus main body 1 is placed horizontally on the surface of the table T, for example, with the bottom face down, and the openable mirror cover 31 is opened. . Then, the position of the reflection mirror 32 attached to the inside of the openable mirror cover 31 is adjusted so as to face a screen or a wall surface (not shown) on which an image is projected. At that time, by adopting an optical system comprising a projection lens system including the above-mentioned free-form surface lens, even if the distance to the screen is small (for example, the distance to the screen d = 0 to several tens of centimeters), that is, the screen Even if it is installed adjacent to, a sufficiently large projected image can be obtained. When a desired focus cannot be obtained due to a change in the projection distance d to the screen, the focus adjustment knob 33 described above may be adjusted again by appropriately rotating.
　＜Ｂ：縦置きの使用形態＞
　この使用形態では、上記図２の状態の装置本体１から、下側ケース２の一側面（上記開閉式ミラーカバー３１が設けられた側とは反対側）に本体と一体に取り付けた一対のスタンド脚５、５を、それぞれ、所定の方向（図の矢印を参照）に回転することにより取り出し、図４のような状態とする。その後、図５に示すように、取り出した一対のスタンド脚５、５の面を、例えば、机の表面上に当接するように設置することにより、装置本体１を縦置きの形態とする。なお、この図５には、上述したが、下側ケース２の側面に取り付けられた端子板６５の一例が、詳細に示されている。即ち、ここでは、端子板６５は、ＵＳＢ端子である「ＵＳＢ　Ａ」と「ＵＳＢ　Ｂ」、コンピュータからの映像信号を入力するためのＶＧＡ端子「ＣＯＭＰＵＴＥＲ　ＩＮ」、ＨＤＭＩ（登録商標）端子、音声入力端子である「ＡＵＤＩＯ　ＩＮ」を備えている。 <B: Vertical usage pattern>
In this mode of use, a pair of stands attached integrally with the main body from the apparatus main body 1 in the state of FIG. 2 to one side surface of the lower case 2 (the side opposite to the side on which the openable mirror cover 31 is provided). The legs 5 and 5 are respectively taken out by rotating in predetermined directions (see the arrows in the figure), and are in a state as shown in FIG. After that, as shown in FIG. 5, the surface of the pair of stand legs 5 and 5 is installed so as to come into contact with the surface of the desk, for example, so that the apparatus main body 1 is in a vertically placed form. In addition, although FIG. 5 mentioned above, an example of the terminal board 65 attached to the side surface of the lower case 2 is shown in detail. That is, here, the terminal board 65 includes USB terminals “USB A” and “USB B”, a VGA terminal “COMPUTER IN” for inputting a video signal from the computer, an HDMI (registered trademark) terminal, and an audio input. A terminal “AUDIO IN” is provided.
　即ち、上述した投射型映像表示装置では、装置の一部に形成された上述の一対のスタンド脚５、５の働きにより、横置きの使用形態だけでなく、縦置きの使用形態をも含め、装置を机の表面上に設置することを可能とする。 That is, in the above-described projection type video display device, not only the horizontal usage mode but also the vertical usage mode is provided by the action of the pair of stand legs 5 and 5 formed in a part of the device. Allows the device to be placed on the surface of a desk.
　そこで、以下には、本発明の一実施の形態に係る投射型映像表示装置における、上記一対のスタンド脚５、５のより具体的な構造について、図６及び図７を参照しながら、詳細に説明する。 Therefore, in the following, a more specific structure of the pair of stand legs 5 and 5 in the projection display apparatus according to an embodiment of the present invention will be described in detail with reference to FIGS. explain.
　＜スタンド脚の取付構造＞
　まず、図６（ａ）は、上述した一対のスタンド脚５、５、特に、その一方の、上記下側ケース２の側面への取付構造を示している。図にも示すように、スタンド脚５は、例えば、樹脂等の射出成型により形成され、下側ケース２の側面に適合する外観形状を有すると共に、本例では、厚み方向において上述した所望の傾斜角度（θ）を備えた脚本体部５１と、当該脚本体部の下側ケース２の側面への当接面の一部に形成された、二重円筒状の外形を備えた突起部５２と、当該本体部の外側の面に取り付けられるワッシャ付ナット５３と、意匠シート５４（具体的には、ワッシャ付ナットを隠すための一方の面に接着材が塗布されたシート状部材）などを備えている。 <Stand leg mounting structure>
First, FIG. 6A shows a mounting structure of the above-described pair of stand legs 5, 5, particularly one of them, on the side surface of the lower case 2. As shown in the figure, the stand leg 5 is formed by, for example, injection molding of resin or the like and has an appearance shape that fits the side surface of the lower case 2. In this example, the desired inclination described above in the thickness direction is used. A leg main body 51 having an angle (θ), and a protrusion 52 having a double cylindrical outer shape formed on a part of a contact surface with the side surface of the lower case 2 of the leg main body; And a washer-attached nut 53 attached to the outer surface of the main body, and a design sheet 54 (specifically, a sheet-like member coated with an adhesive on one surface for concealing the washer-provided nut). ing.
　上述したスタンド脚５は、その脚本体部５１の突起部５２が、下側ケース２の高さ方向の略中央部（＝Ｈ／２）に形成した貫通穴２１を介して、下側ケースの内部に達するように挿入される。なお、その際、スタンド脚５と下側ケース２との接触面の摩擦抵抗等を低減するための部材として、例えば、摺動シート５５等を介在させることが好ましい。 The stand leg 5 described above has a protrusion 52 of the leg main body 51 through the through hole 21 formed in the substantially central portion (= H / 2) in the height direction of the lower case 2. Inserted to reach the inside. At that time, for example, a sliding sheet 55 or the like is preferably interposed as a member for reducing the frictional resistance or the like of the contact surface between the stand leg 5 and the lower case 2.
　一方、下側ケース２の内部には、ブロック状の摺動ストッパ／ロック部品５６が配置されている。この摺動ストッパ／ロック部品５６の中央部には、図からも明らかなように、上述したスタンド脚５側の突起部５２が挿入される開口部や、以下にも説明するラチェット機構等が、一体に形成されている。そして、当該摺動ストッパ／ロック部品５６は、ワッシャ５７、ウェーブワッシャ（ワッシャばね）５８、更には、他のワッシャ５９（このワッシャはスタンド脚５に追従して回転する）を介して、貫通するネジ６０により、上述した脚本体部５１に対して取り付けられ、具体的には、上述したワッシャ付ナット５３に螺合される。 On the other hand, a block-shaped sliding stopper / lock component 56 is arranged inside the lower case 2. As is apparent from the figure, the sliding stopper / locking part 56 has an opening into which the protrusion 52 on the stand leg 5 side is inserted, a ratchet mechanism described below, and the like. It is integrally formed. The sliding stopper / locking part 56 penetrates through a washer 57, a wave washer (washer spring) 58, and another washer 59 (this washer rotates following the stand leg 5). It attaches with respect to the leg main-body part 51 mentioned above with the screw | thread 60, and is specifically screwed by the nut 53 with a washer mentioned above.
　上述した構成からなるスタンド脚の取付構造の完成後の断面を、図６（ｂ）に示す。また、図７は、スタンド脚の取付構造の完成後における機能／動作を説明するため、特に、上記脚本体部５１の一部から伸びた突起部５２と、当該突起部５２がその中央に形成した開口部に挿入される摺動ストッパ／ロック部品５６を中心として示した一部拡大図である。 FIG. 6B shows a cross section of the stand leg mounting structure having the above-described configuration after completion. FIG. 7 shows a function / operation after completion of the stand leg mounting structure, in particular, a protrusion 52 extending from a part of the leg main body 51 and the protrusion 52 formed at the center thereof. It is the partially expanded view mainly shown on the sliding stopper / locking part 56 inserted in the opened part.
　特に、図７から明らかなように、上記脚本体部５１の一部から伸びた円筒状の突起部５２の外周には、凸部５２１と、一対の半円状の凹部５２２、５２２とが形成されている。他方、当該突起部５２が挿入される摺動ストッパ／ロック部品５６は、その矩形形状の本体の中央部に円盤状の部材を備えており、そして、当該円盤状部材の略中央部には、上記脚本体部５１の円筒状の突起部５２が円周方向に摺動可能に挿入される開口部５６１が形成されている。なお、この開口部５６１は、突起部５２の凸部５２１が所定の角度（本例では、０度～９０度）の範囲内で回動可能とするため、図からも明らかなように、所定の角度（本例では、９０度）で広がる扇形の開口となっている。また、円盤状部材は、上記の開口と共に、更に、所定の角度（本例では、０度と９０度）において突起部５２（即ち、スタンド脚５）を安定的に保持するための、いわゆる、ラチェット機構５６２を備えている。 In particular, as is apparent from FIG. 7, a convex portion 521 and a pair of semicircular concave portions 522 and 522 are formed on the outer periphery of the cylindrical projection portion 52 extending from a part of the leg main body portion 51. Has been. On the other hand, the sliding stopper / lock component 56 into which the protrusion 52 is inserted includes a disk-shaped member at the center of the rectangular main body, and the substantially center of the disk-shaped member includes: An opening 561 is formed into which the cylindrical protrusion 52 of the leg main body 51 is inserted so as to be slidable in the circumferential direction. The opening 561 allows the projection 521 of the projection 52 to rotate within a range of a predetermined angle (in this example, 0 degrees to 90 degrees). This is a fan-shaped opening that widens at an angle (90 degrees in this example). Further, the disk-shaped member is a so-called for holding the projection 52 (that is, the stand leg 5) stably at a predetermined angle (in this example, 0 degrees and 90 degrees) together with the opening. A ratchet mechanism 562 is provided.
　即ち、上述したワッシャばねによる緩み止め機構やラチェット機構を含んだスタンド脚の取付構造によれば、スタンド脚を別体とした場合のような不具合（例えば、搬送忘れによる利用不能）はなく、また、投射型映像表示装置の一部に形成された一対のスタンド脚５、５を取り出す際にも、その取り出す方向を間違えることなく、かつ、例えば、上述したラチェット機構によるクリック音により、最適な位置への設定を確認することにより、所望の取り出し角度（即ち、９０度）において、安定的に固定することが容易に可能となる。 That is, according to the mounting structure of the stand leg including the locking mechanism and the ratchet mechanism using the washer spring described above, there is no problem (for example, unusable due to forgetting to transport) as when the stand leg is separated. Even when taking out the pair of stand legs 5 and 5 formed in a part of the projection type image display device, the optimum position can be obtained without making a mistake in the direction of taking out and, for example, by clicking sound by the ratchet mechanism described above. By confirming the setting, it is possible to easily fix stably at a desired take-off angle (that is, 90 degrees).
　＜スタンド脚の傾斜調整機構＞
　しかしながら、上記にも述べたように、投射型映像表示装置を机やテーブル上に設置して映像光を拡大投射する場合、当該机やテーブルの表面上の凹凸や僅かな傾斜による影響を受けやすく、そのため、不好な歪んだ画面が表示されてしまう。そこで、本発明では、かかる机やテーブルの表面上の凹凸や僅かな傾斜による悪影響を解消して好適な画面を得るため、上記一対のスタンド脚５，５の一部に傾斜調整機構を設けている。 <Stand leg tilt adjustment mechanism>
However, as described above, when a projection-type image display device is installed on a desk or table to project enlarged image light, it is easily affected by unevenness or slight inclination on the surface of the desk or table. Therefore, an unfavorable distorted screen is displayed. Therefore, in the present invention, an inclination adjusting mechanism is provided on a part of the pair of stand legs 5 and 5 in order to eliminate a bad influence caused by unevenness and slight inclination on the surface of the desk or table. Yes.
　図８（ａ）及び（ｂ）は、上述した傾斜調整機構の一例である、いわゆる、ネジ式の調整機構の上面図と側面図を示す。この傾斜調整機構１００は、具体的には、例えば、金属や樹脂からなる円筒状の部材からなり、その外周にはネジ溝１１０を形成すると共に、その軸方向には、例えば、十円玉等のコインの端部が挿入可能な溝１２１を形成した頭部１２０と、机やテーブルの表面上に接する接触（脚）部１３０を有している。 FIGS. 8A and 8B are a top view and a side view of a so-called screw-type adjusting mechanism, which is an example of the tilt adjusting mechanism described above. Specifically, the tilt adjusting mechanism 100 is made of, for example, a cylindrical member made of metal or resin, and has a thread groove 110 formed on the outer periphery thereof. A head 120 having a groove 121 into which an end of the coin can be inserted, and a contact (leg) portion 130 in contact with the surface of a desk or table.
　一方、上記一対のスタンド脚５，５の一部には、上記の図５にも示すように、開口部１４０、１４０が形成されると共に、その内周面には、傾斜調整機構１００を構成する円筒部材のネジ溝１１０と螺合するためのネジ溝（ここでは図示せず）が形成されている。そして、これらの開口部１４０、１４０には、上記円筒状の調整機構１００，１００が、それぞれ、互いにネジ溝を螺合しながら挿入されている。なお、机やテーブルの表面に対する投射型映像表示装置は、図９にも示すように、装置を立てた状態、即ち、Ｂ：縦置きの使用形態では、十円玉等のコインの端部を傾斜調整機構１００の溝１２１内に挿入して回転することにより、その接触部１３０がスタンド脚５の底面から突出を調節することが可能であり、もって、投射型映像表示装置の傾斜角度を調整することが可能となることは当業者であれば明らかであろう。なお、ここで、装置の傾斜角度の変化と共に、投射される映像（画像）の面との位置関係を示しているが、この図では、図示の便宜のため、投射型映像表示装置に替えて、当該装置が立てた状態で設置されて映像（画像）が投射される面が、その位置を変えて、実線や鎖線により描画されている。 On the other hand, as shown in FIG. 5 above, openings 140 and 140 are formed in a part of the pair of stand legs 5 and 5, and an inclination adjusting mechanism 100 is formed on the inner peripheral surface thereof. A thread groove (not shown here) is formed to be screwed with the thread groove 110 of the cylindrical member. The cylindrical adjustment mechanisms 100 and 100 are inserted into the openings 140 and 140 while screwing the screw grooves to each other. In addition, as shown in FIG. 9, the projection type image display device for the surface of the desk or table is in a state where the device is set up, that is, B: in the vertical usage mode, the end of a coin such as a ten-yen coin is displayed. By inserting and rotating in the groove 121 of the tilt adjusting mechanism 100, the contact portion 130 can adjust the protrusion from the bottom surface of the stand leg 5, and thus the tilt angle of the projection display apparatus can be adjusted. It will be apparent to those skilled in the art that this is possible. Here, the positional relationship with the surface of the projected video (image) is shown along with the change in the tilt angle of the device, but in this figure, for convenience of illustration, it is replaced with a projection type video display device. The surface on which the apparatus is set up and on which video (image) is projected is drawn by a solid line or a chain line by changing its position.
　また、図１０にも示すように、傾斜調整機構１００の高さ「ｔ」は、その取り付け位置にも依存するが、例えば、スタンド脚５の厚さ「Ｔ」よりも小さく（Ｔ≧ｔ）設定することが好ましい。このような設定とすることによれば、スタンド脚５を装置の側面に収納する際にも、傾斜調整機構１００が飛び出して邪魔することなく、好適であろう。なお、この例では、スタンド脚５の開口部１４０の上部は、十円玉等のコインの端部が挿入可能な寸法となっている。また、この図には、上述した傾斜調整機構１００を構成する円筒部材のネジ溝１１０と螺合するためのネジ溝が、符号１４１により示されている。 As shown in FIG. 10, the height “t” of the tilt adjustment mechanism 100 is also smaller than the thickness “T” of the stand leg 5 (T ≧ t), for example, depending on the mounting position. It is preferable to set. Such a setting would be preferable without tilting the tilt adjusting mechanism 100 popping out when the stand leg 5 is housed in the side surface of the apparatus. In this example, the upper part of the opening 140 of the stand leg 5 has a dimension in which an end of a coin such as a ten-yen coin can be inserted. Further, in this figure, a screw groove for screwing with the screw groove 110 of the cylindrical member constituting the inclination adjusting mechanism 100 described above is indicated by reference numeral 141.
　続いて、図１１（ａ）及び（ｂ）には、上記とは異なる、いわゆる、スライド式の傾斜調整機構１００’をそのスタンド脚５に備えた投射型映像表示装置の側面図と上面図を示す。なお、このスライド式の傾斜調整機構１００’は、Ａ：横置きの使用形態、及び、Ｂ：縦置きの使用形態を含め、その位置を移動する（図に矢印で示す）ことにより、投射型映像表示装置の傾斜状態を調整するものである。なお、本例では、これらの図からも明らかなように、各スタンド脚５には、それぞれ、２個の調整機構１００’、１００’が取り付けられている。より具体的には、図の左側のスタンド脚５には、その左右の端部に近い位置には、それぞれ、前部調整機構１００’－ｆ、後部調整機構１００’－ｂが取り付けられている。 Subsequently, FIGS. 11A and 11B are a side view and a top view of a projection-type image display apparatus having a so-called slide-type tilt adjustment mechanism 100 ′ different from the above on the stand leg 5. Show. In addition, this slide type inclination adjusting mechanism 100 'includes a projection type by moving its position (indicated by an arrow in the figure) including A: horizontal usage and B: vertical usage. The tilt state of the video display device is adjusted. In this example, as can be seen from these drawings, two adjustment mechanisms 100 ′ and 100 ′ are attached to each stand leg 5. More specifically, a front adjustment mechanism 100′-f and a rear adjustment mechanism 100′-b are attached to the stand leg 5 on the left side of the drawing at positions close to the left and right ends, respectively. .
　また、これらの調整機構１００’…には、それぞれ、机やテーブルの表面上に接するための接触（脚）部１３０’が設けられている。より具体的には、前部調整機構１００’－ｆには、１個の接触（脚）部１３０’が、そして、後部調整機構１００’－ｂには、２個の接触（脚）部１３０’が、互いに直行する面に、それぞれ、取り付けられている。そして、それらは、それぞれ、例えば、図に矢印で示した方向に移動可能である。 Further, each of these adjustment mechanisms 100 '... is provided with a contact (leg) portion 130' for contacting the surface of a desk or table. More specifically, the front adjustment mechanism 100'-f has one contact (leg) portion 130 ', and the rear adjustment mechanism 100'-b has two contact (leg) portions 130'. 'Are attached to the surfaces that are orthogonal to each other. And each of them can move in the direction shown by the arrow in the figure, for example.
　図１２～図１５には、上述した調整機構１００’の位置を移動することによってその接触（脚）部１３０’の位置（突出量）が可変となるための機構の一例を示す。 FIGS. 12 to 15 show an example of a mechanism for changing the position (projection amount) of the contact (leg) portion 130 ′ by moving the position of the adjusting mechanism 100 ′ described above.
　図１２（ａ）及び（ｂ）に示すように、調整機構１００’は、スタンド脚５の外周面に沿って移動（摺動）可能となるように形成（本例では、断面が略「コ」の字状に形成）されたスライド部材となっている。他方、スタンド脚５の外周の一部には、所定の傾斜角でガイド溝ｇが形成されると共に、このガイド溝ｇには、上記調整機構１００’の一部（本例では、内側に伸びた突起部）が挿入されて取り付けられている。即ち、かかる構成によれば、調整機構１００’は、図の左右方向に移動可能（図１２（ａ）の矢印を参照）であると同時に、その移動に伴って、調整機構１００’が垂直方向に移動する。これにより、図１４にも示すように、調整機構１００’の一部（例えば、底部）に取り付けられた接触（脚）部１３０’の高さを自在に調整することが可能となる。 As shown in FIGS. 12A and 12B, the adjustment mechanism 100 ′ is formed so as to be movable (slidable) along the outer peripheral surface of the stand leg 5 (in this example, the cross-section is substantially “col”). It is a slide member formed in the shape of "". On the other hand, a guide groove g is formed on a part of the outer periphery of the stand leg 5 at a predetermined inclination angle, and a part of the adjusting mechanism 100 ′ (in this example, it extends inward) in the guide groove g. Are inserted and attached. That is, according to such a configuration, the adjustment mechanism 100 ′ can move in the left-right direction in the drawing (see the arrow in FIG. 12A), and at the same time, the adjustment mechanism 100 ′ moves in the vertical direction along with the movement. Move to. As a result, as shown in FIG. 14, the height of the contact (leg) portion 130 ′ attached to a part (for example, the bottom portion) of the adjustment mechanism 100 ′ can be freely adjusted.
　同様にして、図１３（ａ）及び（ｂ）に示すように、更に、上述したと同様の機構を直交する方向にも設けることによれば、図１５にも示すように、スタンド脚５の一部に設けられた調整機構１００’（特に、後部調整機構１００’ｂ）を移動することにより、その一部（例えば、底部と側面）に取り付けられた接触（脚）部１３０’の高さ（図のｙ軸方向やｚ軸方向の高さ）を自在に調整することが可能となっている。 Similarly, as shown in FIGS. 13 (a) and 13 (b), by providing a mechanism similar to that described above also in the orthogonal direction, as shown in FIG. By moving the adjustment mechanism 100 ′ (particularly, the rear adjustment mechanism 100′b) provided in a part, the height of the contact (leg) part 130 ′ attached to a part (for example, the bottom and side surfaces) of the adjustment mechanism 100 ′. (Height in the y-axis direction and z-axis direction in the figure) can be freely adjusted.
　即ち、上記図９に示したＢ：縦置きの使用形態と同様に、図１６に示すＡ：横置きの使用形態でも、スタンド脚５の一部に設けられたスライド部材である調整機構１００’を移動することにより、横置きされた投射型映像表示装置の机やテーブルの表面に対する傾斜角を微細に調整することが可能である。このことにより、机やテーブルの表面上の凹凸や僅かな傾斜による不好な歪んだ画面の表示を解消して、好適な画面を得ることができる。なお、この場合には、投射型映像表示装置は、その底面に位置する傾斜調整脚８と、スタンド脚５の２個の後部調整機構１００’－ｂの２個の接触（脚）部１３０’（合計３点：図１１（ａ）を参照）が、机やテーブルの表面に接触して設置される。また、ここでも、装置の傾斜角度の変化と共に、投射される映像（画像）の面との位置関係を示しているが、この図では、図示の便宜のため、投射型映像表示装置の位置に替えて、当該装置が横置きした状態で設置される机やテーブルの表面、及び、映像（画像）が投射される面が、その位置を変えて、実線や鎖線により描画されている。 That is, the adjustment mechanism 100 ′, which is a slide member provided on a part of the stand leg 5, is also used in the A: horizontal usage mode shown in FIG. By moving the, it is possible to finely adjust the tilt angle of the horizontal projection type image display device with respect to the desk or table surface. As a result, it is possible to eliminate the display of an unfavorable distorted screen due to unevenness or slight inclination on the surface of the desk or table, and to obtain a suitable screen. In this case, the projection type image display apparatus has two contact (leg) portions 130 ′ of the inclination adjusting leg 8 located on the bottom surface and the two rear adjusting mechanisms 100′-b of the stand leg 5. (3 points in total: see FIG. 11A) are placed in contact with the surface of the desk or table. Also here, the positional relationship with the surface of the projected image (image) is shown along with the change in the tilt angle of the device, but this figure shows the position of the projection type video display device for the convenience of illustration. Instead, the surface of a desk or table installed in a state where the apparatus is placed horizontally and the surface on which video (image) is projected are drawn by solid lines or chain lines by changing their positions.
　＜スタンド脚の高さ調整機構＞
　続いて、投射型映像表示装置を机やテーブル上に設置して映像光を拡大投射する場合、投射される映像（画像）の大きさを調整するために利用可能な一対のスタンド脚の高さ調整機構について、以下に詳述する。 <Stand leg height adjustment mechanism>
Subsequently, when a projection type video display device is installed on a desk or table to project an enlarged image light, the height of a pair of stand legs that can be used to adjust the size of the projected image (image) The adjustment mechanism will be described in detail below.
　以上に述べた投射型映像表示装置では、その内部に反射ミラー（自由曲面ミラー）３２が取り付けられた開閉式ミラーカバー３１は、通常、装置の上面側に設けられている。そのため、特に、Ｂ：縦置きの使用形態で使用する場合、投射される映像（画像）が表示される机やテーブルの表面までの距離は、本体１における反射ミラー３２の位置によって決定されてしまう。 In the projection type image display apparatus described above, the openable mirror cover 31 having a reflection mirror (free-form mirror) 32 attached therein is usually provided on the upper surface side of the apparatus. Therefore, in particular, when used in the usage mode of B: vertical installation, the distance to the surface of the desk or table on which the projected video (image) is displayed is determined by the position of the reflection mirror 32 in the main body 1. .
　そこで、図１７に示すように、装置本体１に対するスタンド脚５の位置、即ち、スタンド脚の高さ（長さ）を調整することが提案される。なお、この例では、スタンド脚の高さを調整可能とするため、スタンド脚５の脚本体部５１の一部から伸びた突起部５２（図６（ａ）や図７を参照）を延長し（図１７には、符号５２’で示す）、その内周面にネジ溝５２３を形成すると共に、下側ケース２（図６（ａ）を参照）の内部には、当該ネジ溝５２３に螺合するネジ溝６０１を備えたネジ６００が固定的に取り付けられている。かかる構成によれば、一対のスタンド脚５を下側ケース２から取り出す際、それぞれ、これらを回転することによって、その高さを、独立して、所望の高さ（長さ）に調整することが可能となる。 Therefore, as shown in FIG. 17, it is proposed to adjust the position of the stand leg 5 with respect to the apparatus body 1, that is, the height (length) of the stand leg. In this example, in order to adjust the height of the stand leg, the protrusion 52 (see FIGS. 6A and 7) extending from a part of the leg main body 51 of the stand leg 5 is extended. (Indicated by reference numeral 52 ′ in FIG. 17), a screw groove 523 is formed on the inner peripheral surface thereof, and a screw is inserted into the screw groove 523 inside the lower case 2 (see FIG. 6A). A screw 600 having a screw groove 601 to be mated is fixedly attached. According to this configuration, when the pair of stand legs 5 are taken out from the lower case 2, the heights can be independently adjusted to a desired height (length) by rotating them. Is possible.
　続いて、図１８（ａ）及び（ｂ）には、上述したスタンド脚の高さ調整機構による効果について説明する。これらの図からも明らかなように、まず、特に、Ｂ：縦置きの使用形態で使用する場合、一対のスタンド脚５を回転してその高さを調整することにより（図の矢印を参照）、映像光を机やテーブル上に設置して拡大投射する大きさを、所望の大きさに調整することが可能となる（図１８（ｂ）参照）。また、その際、机やテーブルの表面上の凹凸や僅かな傾斜による影響を受けやすく、不好に歪んだ画面が表示されてしまうが、そのような場合においても、一対のスタンド脚５を、それぞれ独立して、その高さ（図１８（ａ）の「ｄ１」及び「ｄ２」参照）を、適宜、調整することによって、好適な画面を得ることが可能となる。 Subsequently, in FIGS. 18A and 18B, effects of the above-described stand leg height adjusting mechanism will be described. As is clear from these figures, first, in particular, when used in a vertical usage mode, B: by rotating the pair of stand legs 5 and adjusting their heights (see arrows in the figure). It is possible to adjust the size of the image light placed on a desk or table and enlarged and projected to a desired size (see FIG. 18B). Also, at that time, it is easily affected by unevenness and slight inclination on the surface of the desk or table, and an unfavorably distorted screen is displayed, but even in such a case, the pair of stand legs 5 are A suitable screen can be obtained by appropriately adjusting the heights (see “d1” and “d2” in FIG. 18A) independently of each other.
　＜その他＞
　上記にその詳細を説明した投射型映像表示装置では、上述したスタンド脚等に加え、特に、ＵＳＢ端子、ＶＧＡ端子、ＨＤＭＩ端子など、当該装置の外部（例えば、ＰＣ、又は、スマートフォンやタブレット等の携帯端末）からの映像信号を入力するための端子を備えた端子板６５が、更には、電源ケーブルが差し込まれる電源インレット部６が、本体１を形成する下側ケース２の側面に取り付けられている。 <Others>
In the projection type video display apparatus whose details have been described above, in addition to the above-mentioned stand legs, etc., in particular, the USB terminal, the VGA terminal, the HDMI terminal, etc., the outside of the apparatus (for example, PC, smartphone, tablet, etc.) A terminal board 65 having a terminal for inputting a video signal from a portable terminal) and a power inlet portion 6 into which a power cable is inserted are attached to the side surface of the lower case 2 forming the main body 1. Yes.
　そのため、実際の使用の際には、複数のケーブルが投射型映像表示装置の側面に接続された状態となる。特に、一対のスタンド脚５、５を取り出して装置本体１を机の上に立てた状態で使用する「縦置きの使用形態」においては、これらのケーブルに操作者の指が引っ掛かる等の場合には、上記の電源インレット部６や端子板６５に力が掛かり、そのため、投射型映像表示装置が移動し（投射画像が乱れる）、或いは、転倒してしまう（投射画像が消える）などの不都合が考えられる。 Therefore, in actual use, a plurality of cables are connected to the side surface of the projection display apparatus. In particular, in the “vertical usage mode” in which the pair of stand legs 5 and 5 are taken out and the apparatus main body 1 is placed on a desk, the operator's finger is caught on these cables. Is a force applied to the power inlet 6 and the terminal board 65, and therefore the projection type video display device moves (projection image is disturbed) or falls (projection image disappears). Conceivable.
　そこで、本実施の形態では、上記の図５や図９にも示したように、それら端子板６５や電源インレット部６は、特に、「縦置きの使用形態」において、装置の下方に位置する位置に取り付けられている。即ち、端子板６５や電源インレット部６は、一対のスタンド脚５、５を取り出して装置本体１を立てた状態で使用する場合には、当該取り出したスタンド脚５、５に近接した位置に来るように設置されている。 Therefore, in the present embodiment, as shown in FIG. 5 and FIG. 9 described above, the terminal board 65 and the power inlet portion 6 are located below the device, particularly in the “vertical usage mode”. Is attached in position. That is, when the terminal board 65 and the power inlet 6 are used in a state where the pair of stand legs 5 and 5 are taken out and the apparatus main body 1 is stood up, the terminal board 65 and the power inlet section 6 come to positions close to the taken out stand legs 5 and 5. It is installed as follows.
　以上に詳細に述べた本発明の投射型映像表示装置によれば、簡単な操作により、使用状況に応じて設置状態を適切に変更可能で、かつ、実用的にも優れた投射型映像表示装置が提供される。 According to the projection type image display device of the present invention described in detail above, the installation state can be appropriately changed according to the use situation by a simple operation, and the projection type image display device is excellent in practical use. Is provided.
　なお、本発明は、上述した実施の形態にのみ限定されるものではなく、様々な変形例が含まれることは明らかであろう。例えば、上記した実施例は、本発明を分かりやすく説明するために、詳細を説明したものであり、従って、本発明は、必ずしも、説明した全ての構成を備えるものに限定されるものではない。また、ある実施例の構成の一部を他の構成に置き換えることが可能であり、また、ある実施例の構成に他の構成を加えることも可能である。また、実施例の構成の一部について、他の構成の追加・削除・置換をすることも可能である。 It should be noted that the present invention is not limited to the above-described embodiment, and it is obvious that various modifications are included. For example, the above-described embodiments have been described in detail for easy understanding of the present invention. Therefore, the present invention is not necessarily limited to those having all the configurations described. Further, a part of the configuration of a certain embodiment can be replaced with another configuration, and another configuration can be added to the configuration of a certain embodiment. Further, it is possible to add, delete, and replace other configurations for a part of the configuration of the embodiment.
　１…本体（筺体）、２…下側ケース、３…上側ケース、３１…開閉式ミラーカバー、３２…反射ミラー（自由曲面ミラー）、３５…開口部、５、５…スタンド脚、１００…ネジ式傾斜調整機構、１００’…スライド式傾斜調整機構、１３０’…接触（脚）部、ｇ…ガイド溝、５２…突起部、５２３…ネジ溝、ネジ…６００。 DESCRIPTION OF SYMBOLS 1 ... Main body (casing), 2 ... Lower case, 3 ... Upper case, 31 ... Open / close-type mirror cover, 32 ... Reflection mirror (free-form surface mirror), 35 ... Opening part 5, 5 ... Stand leg, 100 ... Screw Type tilt adjustment mechanism, 100 '... slide type tilt adjustment mechanism, 130' ... contact (leg) part, g ... guide groove, 52 ... projection part, 523 ... screw groove, screw ... 600.

Claims (11)

  1. 　筺体の内部に、少なくとも、投射レンズを含む、拡大投射される映像光を出射するための光学系を収納し、前記筺体に、前記光学系から射出される映像光を被表示面に向かって拡大投射する手段が取り付けられた投射型映像表示装置であって、
    　前記投射型映像表示装置は、前記筺体の底面又はその一側面により水平方向又は垂直方向に設置可能であって、
    　当該水平方向又は垂直方向において前記投射型映像表示装置の傾斜角度を調整可能な傾斜角度調整機構を備えている、投射型映像表示装置。     An optical system for emitting image light to be enlarged and projected, including at least a projection lens, is housed inside the housing, and the image light emitted from the optical system is enlarged toward the display surface in the housing. A projection-type image display device to which means for projecting is attached,
    The projection-type image display device can be installed in a horizontal direction or a vertical direction by a bottom surface of the casing or one side surface thereof,
    A projection-type image display apparatus comprising an inclination angle adjustment mechanism capable of adjusting an inclination angle of the projection-type image display apparatus in the horizontal direction or the vertical direction.
  2. 　請求項１に記載の投射型映像表示装置において、
    　前記筺体の前記一側面には、前記傾斜角度調整機構として、一対のスタンド脚が、前記筐体と一体に、かつ、取り出し可能に収納されており、
    　前記スタンド脚は、取り出して前記一側面を底面とした縦置きの使用形態において、前記投射型映像表示装置の傾斜角度を調整可能な第１の調整機構を備えている、投射型映像表示装置。     In the projection type video display device according to claim 1,
    On the one side surface of the housing, a pair of stand legs is housed integrally with the housing as a tilt angle adjusting mechanism, and is detachable.
    The projection type video display device, wherein the stand leg is provided with a first adjustment mechanism capable of adjusting an inclination angle of the projection type video display device in a vertically placed usage form with the one side surface as a bottom surface.
  3. 　請求項２に記載の投射型映像表示装置において、
    前記第１の調整機構は、前記スタンド脚が設置される第一の設置面に対して第一の脚で接触し、前記第一の設置面に垂直な方向に移動可能な第二の脚部を備えている、投射型映像表示装置。     In the projection type video display device according to claim 2,
    The first adjustment mechanism is a second leg portion that contacts the first installation surface on which the stand leg is installed with the first leg and is movable in a direction perpendicular to the first installation surface. A projection-type image display device comprising:
  4. 　請求項２又は３に記載の投射型映像表示装置において、
    　前記スタンド脚は、更に、収納して前記筺体の前記底面による横置きの使用形態において当該装置の傾斜角度を調整可能な第２の調整機構を備えている、投射型映像表示装置。     In the projection type video display device according to claim 2 or 3,
    The stand-type leg display further includes a second adjustment mechanism that can be housed and can adjust a tilt angle of the device in a horizontal usage mode using the bottom surface of the casing.
  5. 　請求項４に記載の投射型映像表示装置において、
    　前記第２の調整機構は、前記筺体の前記底面に設置される第二の設置面に対して第二の脚で接触し、前記第二の設置面に垂直な方向に移動可能な第一の脚部を備えている、投射型映像表示装置。     In the projection type video display device according to claim 4,
    The second adjustment mechanism is a first leg that contacts the second installation surface installed on the bottom surface of the housing with a second leg and is movable in a direction perpendicular to the second installation surface. A projection-type image display device provided with legs.
  6. 　請求項５に記載の投射型映像表示装置において、
    　前記スタンド脚が備える前記第１の調整機構と前記第２の調整機構は一体に構成されている、投射型映像表示装置。     In the projection type video display device according to claim 5,
    The projection-type image display device, wherein the first adjustment mechanism and the second adjustment mechanism included in the stand leg are integrally configured.
  7. 　請求項６に記載の投射型映像表示装置において、
    　前記第１の調整機構と前記第２の調整機構は、前記スタンド脚の一部に摺動可能に取り付けられたスライド部材として構成されている、投射型映像表示装置。     In the projection type video display device according to claim 6,
    The first adjustment mechanism and the second adjustment mechanism may be configured as a slide member that is slidably attached to a part of the stand leg.
  8. 　請求項７に記載の投射型映像表示装置において、
    　前記第１の調整機構を構成する前記第一の脚部及び前記第２の調整機構を構成する前記第二の脚部は、前記スライド部材の一部において、互いに直交する方向に向かって取り付けられている、投射型映像表示装置。     In the projection type video display device according to claim 7,
    The first leg part constituting the first adjustment mechanism and the second leg part constituting the second adjustment mechanism are attached to a part of the slide member in directions orthogonal to each other. Projection-type image display device.
  9. 　請求項５に記載の投射型映像表示装置において、
    　前記スタンド脚は、更に、取り出して前記一側面を底面とした縦置きの使用形態において、当該投射型映像表示装置の前記設置面に対する高さを調整可能な第３の調整機構を備えている、投射型映像表示装置。     In the projection type video display device according to claim 5,
    The stand leg further includes a third adjustment mechanism capable of adjusting a height relative to the installation surface of the projection type video display device in a vertically placed usage form with the one side surface as a bottom surface. Projection-type image display device.
  10. 　請求項９に記載の投射型映像表示装置において、
    　前記スタンド脚の前記第３の調整機構は、前記投射型映像表示装置に対する前記スタンド脚の位置を、前記第１の調整機構を構成する前記第一の脚部が移動可能な方向において調整可能である、投射型映像表示装置。     In the projection type video display device according to claim 9,
    The third adjustment mechanism of the stand leg can adjust the position of the stand leg with respect to the projection type image display device in a direction in which the first leg portion constituting the first adjustment mechanism can move. A projection-type image display device.
  11. 　請求項１０に記載の投射型映像表示装置において、
    　前記スタンド脚の前記第３の調整機構は、前記筺体の内部に収納可能である、投射型映像表示装置。     In the projection type video display device according to claim 10,
    The projection type image display device, wherein the third adjusting mechanism of the stand leg can be housed in the housing.
PCT/JP2017/013357 2017-03-30 2017-03-30 Projection-type video display device WO2018179267A1 (en)

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JP2003005279A (en) * 2001-06-20 2003-01-08 Fujitsu General Ltd Tilt device for projector
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