JP2008259601A - Projection toy - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a projection toy having a plurality of light sources and a plurality of projection patterns to be easily operated for projecting a plurality of images by controlling the light sources by a microcomputer. <P>SOLUTION: The projection toy 1 includes a projection part 3 including an incidence side mirror tube unit 41a and a projection side mirror tube unit 41b of the same shape and a plurality of LEDs 43, and an image sheet 4 mounted in the gap between the two mirror tube units 41a and 41b. The incidence side mirror tube unit 41a and the projection side mirror tube unit 41b have a plurality of lens mirror tubes spread in the vertical and horizontal directions, and disposed facing each other at a prescribed distance in-between in the front/rear direction. The LEDs 43 are disposed in the same number as that of the lens mirror tubes of the mirror tube units 41a and 41b, and are disposed in the vicinity of the rear ends of the respective lens mirror tubes of the incidence side mirror tube unit 41a disposed in the rear. Images are drawn on the image sheet 4 in such a way that different images are located on the optical axes of the respective lens mirror tubes of the mirror tube units 41a and 41b. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a projection toy.

  As a projection toy for children, for example, in Japanese Patent Application Laid-Open No. 2006-25982 (Patent Document 1), a 24-frame endless film is rotated by a motor, and a plurality of LEDs and a projection-side optical system are placed in the ring of the endless film. A proposal has been made to project an image of an endless film on a projection surface by arranging a projection apparatus equipped with the above.

In the present invention, pictures and subtitles are described in each frame of a film like a picture book. When the page feed button is pressed, the film advances one frame at a time, and onomatopoeia flows according to the description of each frame. Is a projection toy that can read the subtitles described in each frame and let the infant hear it, or provide the infant with the interval that the infant is reading the picture book by reading the subtitles.
JP 2006-25982 A

  In the conventional projection toy, since a plurality of images are projected with one light source, an operating mechanism for operating the film is required, and there are problems such as an increase in the size of the projection toy and an increase in the manufacturing process.

  The present invention has been made in view of the above-described problems of the prior art, and includes a plurality of light sources, and these light sources are controlled by a microcomputer to project a plurality of images. An object of the present invention is to provide a projection toy provided with the projection pattern.

  The projection toy (1) of the present invention has a plurality of lens barrels laid vertically and horizontally, and has the same shape on the incident side barrel unit (41a) disposed opposite to the front and rear at a predetermined distance from each other. Each lens of the projection side barrel unit (41a) and the same number of lens barrels of both the barrel units (41a, 41b) and the rear side of the incident side barrel unit (41a) A projection unit (3) having a plurality of LEDs (43) disposed in the vicinity of the rear end of the lens barrel and a gap between the two lens barrel units (41a, 41b), And an image sheet (4) on which images are drawn so that different images are positioned on the optical axes of the respective lens barrels of the tube unit (41a, 41b).

  The projection unit (3) controls the condensing lens (42) fixed to the front end of each lens barrel of the both barrel units (41a, 41b) and the LEDs (43). And a microcomputer.

  Further, the image sheet (4) is detachable in a gap between the lens barrel units, includes a microfilm, and an image is drawn by nanoprinting.

  The projection toy (1) has a substantially elliptic spherical shape, and is formed with a notch (31) in which the projection (3) is arranged at a predetermined position on the upper part, and in the vicinity of the notch (31). It has a main body part (2) having a power switch (32) and a battery storage part at the bottom.

  Further, the condenser lens (42) fixed to the front end of the projection-side lens barrel unit (41b) is separated from the light bundle emitted from the plurality of LEDs (43) and transmitted through each lens barrel by a predetermined distance. It is tilted and fixed so that one point on the projection surface is in focus.

  In some cases, an external input terminal is provided, an audio output device is provided, or a lighting adjustment button for adjusting the lighting time of the LED (43) is provided.

  According to the present invention, it is possible to provide a projection toy that includes a plurality of light sources and that is controlled by a microcomputer to project a plurality of images and that is easy to operate and has a plurality of projection patterns.

  The projection toy 1 of the best mode for carrying out the present invention has six lens barrels laid at equal intervals in the vertical and horizontal directions, and has the same shape arranged opposite to the front and rear positions at a predetermined interval. Projection provided with an incident side barrel unit 41a and a projection side barrel unit 41b, and six LEDs 43 disposed in the vicinity of the rear end of each lens barrel of the incident side barrel unit 41a disposed at the rear. The image is mounted in the gap between the unit 3 and the two lens barrel units 41a and 41b so that six different images are positioned on the optical axis of each lens barrel included in each lens barrel unit 41a and 41b. And a drawn image sheet 4.

  The projection unit 3 includes a condenser lens 42 fixed to the front end of each lens barrel of both the lens barrel units 41a and 41b, and a microcomputer that controls each LED 43, and the image sheet 4 includes each mirror. It is detachable in the gap between the cylinder units, is provided with a microfilm, and an image is drawn by nanoprinting. In addition, the condenser lens 42 fixed to the front end of the projection-side lens barrel unit 41b is focused on a point on the projection surface where the light beam emitted from the plurality of LEDs 43 and transmitted through each lens barrel is separated by a predetermined distance. So that it is tilted and fixed.

  The projection toy 1 has a substantially elliptic spherical shape, and is formed with a notch 31 in which the projection 3 is arranged at a predetermined position on the top, and has a power switch 32 in the vicinity of the notch 31, And a main body 2 having a battery storage portion.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. As shown in FIG. 1, a projection toy 1 according to the present invention is a hollow main body 2 having a substantially elliptical spherical shape having a notch in a part thereof, and a projection unit that is rotatably attached to the main body 2 and projects an image. 3 and an image sheet 4 including an image filter in which a plurality of images are drawn side by side, and each of the light emitted from the plurality of LEDs is transmitted through the image filter in which the plurality of images are drawn side by side. This is a toy that sequentially projects the images on the projection surface.

  As shown in FIGS. 1 to 4, the main body 2 has a substantially oval spherical shape that is hollow and has a notch in a part thereof, and is formed by overlapping a lower lid 21 and an upper lid 22. The lower lid 21 has a substantially semi-elliptical spherical shape, includes a flat surface portion 23 at the bottom, and a curved surface 24 on which the projection portion 3 is located at the upper front portion. In addition, a battery storage part is formed in the flat part 23, and a battery storage port is closed by a battery cover 25. The battery storage part is provided with a plurality of anti-slip 26 near the periphery of the battery storage part, and an external input terminal on the back surface. 27.

  The upper lid 22 has a substantially semi-elliptical spherical shape, has a notch 31 where the projection unit 3 is located on the front side, and a power switch 32 near the upper back. Further, the notch 31 is formed with a side wall connected to the peripheral edge of the curved surface 24 of the lower lid 21, and although not shown, a support hole for rotatably supporting the projection unit 3 is formed.

  Furthermore, although not shown, the main body 2 includes a control board for exchanging information with an audio output device, an external device connected to the external input terminal 27, controlling the power of the power switch 32, and the like.

  As shown in FIGS. 5 and 6, the projection unit 3 has six lens barrels laid at equal intervals in the vertical and horizontal directions, and has the same shape on the incident side disposed opposite to the front and rear at a predetermined interval. A lens barrel unit 41a and a projection-side lens barrel unit 41b, and six LEDs 43 disposed in the vicinity of the rear end of each lens barrel included in the incident-side lens barrel unit 41a disposed at the rear are provided. Further, the front end portion of each lens barrel included in the two lens barrel units 41a and 41b is provided with a condenser lens 42 fixed by a lens frame 45, and the six LEDs 43 are fixed to the substrate 44, and two lens barrels are provided. The units 41a and 41b are fixed by a lens barrel unit fixing plate 46 so as to maintain a gap between them.

  Further, the projection unit 3 is entirely covered with a projection cover except for the gap between the two lens barrel units 41a and 41b.

  The two lens barrel units 41a and 41b have six lens barrels that are open at both end faces and serve as a light guide path for light emitted from the LED 43. A condensing lens 42 is disposed in each opening at the front end portion of the tube, and the condensing lens 42 is sandwiched between the end portions of the lens barrel units 41a and 41b and the lens frame 45. In addition, these two lens barrel units 41a and 41b are configured such that the lens barrel unit disposed on the rear incident side is the incident side lens barrel unit 41a, and the lens barrel unit disposed on the front projection side is the projection side lens barrel. The unit 41b is arranged so as to face each other so that the optical axes of the lens barrels are the same, and an image sheet mounting portion 48 for attaching and detaching the image sheet 4 is formed between the lens barrel units 41a and 41b. It is fixed by a unit fixing plate 46.

  The condenser lens 42 is fixed to the projection-side end portions of the projection-side barrel unit 41b and the incident-side barrel unit 41a, and condenses the light flux that passes through the respective tubes on the projection surface. Further, in the projection toy 1 of the present embodiment, since the focus is set at a position 3 m from the installation location of the projection toy 1, the light flux emitted from the six lens barrels is set at one point on the projection surface 3 m ahead. Each condensing lens 42 arranged in the vicinity of the projection opening of the projection side barrel unit 41b is arranged to be slightly inclined toward the focal point so as to collect light. Although it is formed so as to be focused on the projection surface of 3 m ahead, it is naturally not limited to this distance, and when it is desired to change the reference distance, the distance is changed according to the distance after the change. By changing the inclination of the optical lens 42, it is possible to adjust the focal point to one point on the projection surface.

  The substrate 44 includes six LEDs 43, a microcomputer that controls the LEDs 43 in a time-sharing manner, and an electric wire that supplies electric power connected to the main body 2, and is fixed in the vicinity of the incident port of the incident side barrel unit 41a. Is. The six LEDs 43 are fixed to the substrate 44 in two vertical columns and three horizontal rows at equal intervals in the vertical and horizontal directions so that one LED 43 is positioned at the center of the entrance of each lens barrel of the incident side barrel unit 41a. It is what.

  In the lens frame 45, six openings having substantially the same shape as the openings of the lens barrels of the incident side barrel unit 41a and the projection side barrel unit 41b are formed on a thin plate having an edge, and the barrel units 41a and 41b are formed. The condensing lens 42 is sandwiched between the projection-side end portions.

  The lens barrel unit fixing plate 46 is a rectangular thin plate having an edge, and the lower part of the incident side lens barrel unit 41a and the projection side lens barrel unit 41b is located between the incident side lens barrel unit 41a and the projection side lens barrel unit 41b. The image sheet mounting portion 48 for attaching and detaching the image sheet 4 is fixed in a state where it is formed.

  The projection cover covers the entire projection unit 3, and a gap is provided between the projection side barrel unit 41b and the incident side barrel unit 41a in the vicinity of the image sheet mounting unit 48 so that the image sheet 4 can be attached and detached. It has. Further, both side surfaces in the vicinity of the rear of the projection cover are provided with protrusions that connect to support holes formed in the notch 31 of the main body 2. Then, by connecting the projection to the support hole, the projection angle of the projection unit 3 can be changed as shown in FIG.

  The image sheet 4 includes a translucent image filter 51 in which six images are drawn in two columns and three rows at equal vertical and horizontal intervals, and two filter fixing plates 52 that sandwich the image filter 51 from the front and back. Are provided. The image filter 51 is a microfilm, and when the image sheet 4 is mounted in the gap between the projection side barrel unit 41b and the incident side barrel unit 41a, each of the six images is the light of each lens barrel. It is drawn at equal intervals in the vertical and horizontal directions so as to be located on the axis, and this image is formed by nanoprinting.

  Further, the filter fixing plate 52 includes a thick portion and a thin plate portion, and the thin plate portion includes six circular frames serving as frames of six images, so that the image drawn on the image filter 51 is positioned in the circular frame. In addition, the image filter 51 is sandwiched between the two filter fixing plates 52 from the front and rear. Further, the thick portion is locked with the lens barrel cover when the image sheet 4 is mounted on the image sheet mounting portion 48 so that the image drawn on the image filter 51 is positioned on the optical axis of the lens barrel. The reference position when the image sheet 4 is mounted on the image sheet mounting portion 48 is determined. Since this image sheet 4 is detachable from the image sheet mounting portion 48, various images can be projected by mounting other image sheets 4 on which different images are drawn.

  In the projection toy 1, when the power switch 32 is pressed in a state where the image sheet 4 is mounted on the image sheet mounting portion 48, the lighting order and lighting of the six LEDs 43 according to the program in which the microcomputer included in the substrate 44 is incorporated. By controlling the time, an image of the image filter 51 disposed on the optical axis of a predetermined lens barrel in which the LED 43 that is lit among the six LEDs 43 is disposed is projected onto the projection surface. Since the LED 43 to be lit is controlled by the microcomputer, the projection image projected onto the projection plane is automatically switched, and a different projection image can be projected without any operation.

  Further, when an external device such as MP3 is connected to the external input terminal 27, an image is projected on the projection surface, and sound also flows from the sound output device so that it can be enjoyed as if viewing a picture-story show.

  In addition, the microcomputer program includes the case where the six LEDs 43 are turned on according to a predetermined order, the case where the LEDs 43 are selected and turned on at random, and the like. Can be changed.

  According to the projection toy 1 of the present embodiment, it is possible to easily project a plurality of images, and there is no complicated operation, and it can be easily enjoyed by infants and children. In addition, various types of images can be enjoyed by exchanging the image sheet 4. Further, since a mechanism for moving a film or the like is not required unlike a conventional projection toy, the projection toy can be easily provided at a low cost.

  In the above-described embodiment, the projection toy 1 capable of projecting six images is used. However, nine images can be projected with the same structure and nine projection ports can be projected. It is also possible to project 16 images. By increasing the number of images to be projected in this way, it becomes possible to project a simple moving image, and it can be enjoyed with more preferences.

  It is also possible to arrange a switch for adjusting the projection speed, etc. By adjusting the projection time of the image, for example, when an image on which captions are drawn is projected, slowly projecting the captions In addition, when an image of a car is projected, various ways of enjoying can be provided, such as being able to enjoy a sense of speed by shortening the projection time.

The perspective view of the projection toy which concerns on the Example of this invention. The bottom view of the projection toy which concerns on the Example of this invention. The rear view of the projection toy which concerns on the Example of this invention. The front view at the time of changing the angle of the projection part of the projection toy concerning the Example of the present invention. The perspective view of the projection part which concerns on the Example of this invention. FIG. 3 is an exploded perspective view of a projection unit and an image sheet according to an embodiment of the present invention.

Explanation of symbols

1 Projection toy 2 Body
3 Projector 4 Image sheet
21 Lower lid 22 Upper lid
23 Flat surface 24 Curved surface
25 Battery cover 26 Non-slip
27 External input terminal 31 Notch
32 Power switch 41a Incident side lens barrel unit
41b Projection tube unit 42 Condensing lens
43 LED 44 board
45 Lens frame 46 Lens barrel unit fixing plate
48 Image sheet mounting part 51 Image filter
52 Filter fixing plate

Claims (9)

Having a plurality of lens barrels laid vertically and horizontally, and having the same shape of the incident side barrel unit and the projection side barrel unit disposed opposite to each other at positions spaced apart by a predetermined distance;
The number of lens barrels included in each of the lens barrel units is equal to the number of lens barrels, and a plurality of LEDs are disposed in the vicinity of the rear end of each lens barrel included in the incident-side lens barrel unit disposed at the rear. A projection unit;
An image sheet that is mounted in a gap between the two lens barrel units and on which images are drawn so that different images are positioned on the optical axes of the lens barrels of the lens barrel units. Characteristic projection toy. The projection unit
A condenser lens fixed to the front end of each lens barrel of both the barrel units;
The projection toy according to claim 1, further comprising a microcomputer that controls the LEDs.   The projection toy according to claim 1, wherein the image sheet is detachable in a gap between the two lens barrel units.   The projection toy according to claim 1, wherein the image sheet includes a microfilm, and an image is drawn by nanoprinting.   A notch portion having a substantially elliptical spherical shape in which the projection portion is arranged at a predetermined position on the upper portion, a power switch in the vicinity of the notch portion, and a main body portion having a battery housing portion at the bottom portion. The projection toy according to any one of claims 1 to 4, wherein the projection toy is characterized by that.   The condenser lens fixed to the front end of the projection-side lens barrel unit is tilted so that the beam bundle emitted from a plurality of LEDs and transmitted through each lens barrel is focused on a point on the projection surface separated by a predetermined distance. The projection toy according to any one of claims 2 to 5, wherein the projection toy is fixed.   The projection toy according to claim 1, further comprising an external input terminal.   The projection toy according to any one of claims 1 to 7, further comprising an audio output device. The projection toy according to any one of claims 1 to 8, further comprising a lighting adjustment button for adjusting a lighting time of the LED.

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