JP5142616B2 - Lighting device - Google Patents

Description

  The present invention relates to an illuminating device including a light source such as a light emitting diode (hereinafter referred to as LED), EL (electroluminescence), or the like.

  In general, incandescent bulbs, fluorescent lamps, and the like are widely known as light sources for lighting devices. On the other hand, the use of LEDs as a light source for illumination has been rapidly increased by taking advantage of the characteristics of LEDs such as small size and power saving.

  As an example of the application of the LED to the illumination, the LED is installed in a so-called globe of a conventional incandescent lamp or in a fluorescent lamp tube, thereby maintaining the appearance of the existing incandescent lamp or fluorescent lamp, A so-called light bulb shaped LED lamp or straight tube type LED lamp that can utilize a fluorescent lamp can be mentioned.

For example, in Patent Document 1, an AC / DC converter for providing a support plate in which a plurality of white LEDs are arranged on one surface in a transparent cylindrical pipe and lighting the white LEDs on the other surface of the support plate, A fluorescent lamp type LED lighting apparatus provided with a power supply circuit such as a voltage control unit is disclosed.
JP 2001-351402 A

  However, once the conventional LED lighting device as described in Patent Document 1 is used by being fixed at a predetermined position such as a wall or a ceiling, the irradiation area is expanded, reduced, or changed. There was a problem that could not be done.

  In particular, in an illuminating device that employs a highly directional light source such as an LED, the irradiation range is narrow due to the directivity of the light source. There was a problem that sufficient illuminance could not be obtained unless this was done.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide an illuminating device that can easily perform adjustments such as expansion, reduction, and change of an irradiation region.

  An illuminating device according to the present invention is characterized in that in an illuminating device using LEDs, EL, or the like as a light source, an adjustment unit that can appropriately perform adjustments such as expanding, reducing, and changing an irradiation region of the light source is provided. .

  In the present invention, by operating the adjustment unit, the irradiation area of the lighting device can be adjusted to be expanded, reduced, changed, etc. Even if the lighting device is fixed and used, the irradiation area Can be adjusted.

Lighting device according to the present invention is a lighting device comprising a light source having directivity, the front Symbol light source a plurality of mounted substrates, and a protective tube straight tube for housing the plurality of substrates, longitudinal of the protective tube A rotation axis that is provided inside the protective cylinder along a direction and holds the one side of each of the plurality of substrates so that the plurality of substrates can rotate, and the substrate around the rotation axis. And an adjustment unit that can adjust the irradiation region by controlling the orientation of the light source by rotating and changing the angle formed by the plurality of substrates.
Further, the lighting device according to the present invention includes a base at a longitudinal end portion of the protective cylinder, the adjustment portion has a lever provided at an end portion on the base side of the substrate, and the lever is , Yes and protrudes through the cutout portion provided along a circumferential direction of the outer peripheral surface of the front Symbol ferrule, characterized in that it is guided by turning the notch.

  In the present invention, even if the illumination device has a directional light source and the irradiation range is narrow, the adjustment of the irradiation region is performed by controlling the directivity of the light source by operating the adjustment unit. It can be performed appropriately.

  The illumination device according to the present invention is characterized in that the light source includes one or a plurality of substrates on which the light source is mounted, and each substrate is movably provided.

  In the present invention, the light source is mounted on one or a plurality of substrates, and the substrate is movably provided. Therefore, when the substrate is operated, the irradiation area of the substrate by the light source changes.

  An illumination device according to the present invention includes two bases arranged opposite to each other and one or a plurality of shafts fixed at both ends to the base, and the substrate is parallel to the shaft and is rotatably held. It is characterized by.

  In the present invention, when the substrate on which the light source is mounted is rotatably held on the shaft in a state parallel to the shaft, and the substrate is operated and rotated, the substrate The irradiation area by the light source changes.

  The lighting device according to the present invention is characterized in that the substrate has a rectangular shape, and an edge on one long side is held by the shaft.

  In the present invention, either one of the long sides of the rectangular substrate is rotatably held on the shaft, and when the substrate is rotated, The irradiation area by the light source changes.

  The lighting device according to the present invention is characterized in that an operating member for operating the substrate is provided on the base.

  In the present invention, the operation member for operating the substrate is provided in a base that is not a portion where irradiation is performed, and when using a lighting device, the operation member itself is prevented from being obstructed by irradiation, and the operation member is Prevents interference caused by operation.

  The illumination device according to the present invention is characterized in that the substrate has flexibility.

  In this invention, the said board | substrate is comprised so that it may consist of a material which has a softness | flexibility, and a freedom degree will be brought further in the change of the irradiation area | region by the said light source of the said board | substrate.

  According to the present invention, since the irradiation area of the light source can be adjusted by operating the adjustment unit, even when the illumination device is used in a fixed position, the irradiation area is expanded, Adjustments such as reduction and change can be easily performed.

  Hereinafter, in the embodiment, an LED illumination device that employs an LED as a light source will be described as an example.

(Embodiment 1)
Embodiment 1 of the present invention is a so-called straight tube LED lamp, and a case where the straight tube LED lamp is installed on the ceiling F will be described with reference to the drawings. FIG. 1 is a partial vertical cross-sectional view when the lighting device according to Embodiment 1 of the present invention is fixed to a ceiling F, FIG. 2 is a cross-sectional view taken along line II-II in FIG. 1, and FIG. It is sectional drawing by the III-III line of FIG.

  The illuminating device according to Embodiment 1 includes a lamp 1 having a light emitting unit 2 that includes a plurality of white LEDs 21, 21, 21,... That are light sources, and a drive unit 31 that drives the white LEDs 21, 21, 21,. A housing 3 and socket portions 4A and 4B for supporting both ends of the lamp 1 and supplying power to the lamp 1 are provided.

  The lamp 1 includes a light emitting unit 2 including two substrates 22, 22 on which a plurality of white LEDs 21, 21, 21... Are mounted, a protective cylinder 11 that houses the light emitting unit 2, and both ends of the protective cylinder 11. The bases 12A and 12B are provided at the center of the bases 12A and 12B, and the rotary shafts 23 are rotatably held by the base plates 22 and 22. For example, the protective cylinder 11 is made of milky white acrylic, and the caps 12A and 12B are made of aluminum. (In FIG. 2, a state in which a part of the substrates 22 and 22 is removed is shown in order to help understanding.)

  The substrates 22 and 22 have a rectangular shape whose length direction is the facing direction of the caps 12 </ b> A and 12 </ b> B, and have a width smaller than the inner diameter of the protective cylinder 11. Both the substrates 22 and 22 are penetrated so that a long side portion can be rotated by a rotation shaft 23, and the two substrates 22 and 22 have a comb shape. A plurality of white LEDs 21, 21, 21... Are mounted on the lower surfaces of the substrates 22 and 22. At the ends of the substrates 22 and 22 on the base 12B side, levers 24 and 24 for rotating the substrates 22 and 22 are provided. The levers 24, 24 are extended in a direction parallel to the short sides of the substrates 22, 22, and protrude outward through the base 12 </ b> B. Knobs 25, 25 are provided at the tips of the levers 24, 24. The knobs 25, 25 have a rectangular parallelepiped shape arranged in parallel with the protective cylinder 11, and are provided with two concave portions 25 A, 25 A at both ends of the back surface facing the base 12 B, respectively. The recesses 25A and 25A accommodate stationary balls 25B and 25B for rotating the substrates 22 and 22 connected to the levers 24 and 24 to a predetermined position and stopping them at a predetermined position. In addition, coiled springs 25C and 25C are interposed between the stationary balls 25B and 25B. The stationary balls 25B and 25B are configured to slide in the circumferential direction on the outer peripheral surface of the base 12B, and are stopped at stationary recesses 122B, 122B, 122B,. The lever 24, the knob 25, and the stationary recess 122B constitute an adjustment unit that controls the orientation of the light source and adjusts the irradiation region.

  The caps 12 </ b> A and 12 </ b> B have a cylindrical shape that follows the end of the protective cylinder 11, and have a bottom on one end side to cover the end of the protective cylinder 11. The bases 12 </ b> A and 12 </ b> B are each provided with two terminal pin pairs 5 and 5 for supplying power to the light emitting unit 2. The terminal pin pairs 5 and 5 pass through the bottoms of the caps 12A and 12B from the inside to the outside of the protective cylinder 11, and the terminal pin pairs 5 and 5 are electrically connected to the socket portions 4A and 4B.

  Rectangular cutouts 121B and 121B are provided on the outer peripheral surface of the base 12B along the circumferential direction, and the levers 24 and 24 protrude outward through the cutouts 121B and 121B. The levers 24, 24 are guided by the notches 121B, 121B and rotate in the circumferential direction. The length of the notches 121B and 121B has an appropriate length that limits the rotation angle of the levers 24 and 24 to 180 degrees or less. Semicircular stationary recesses 122B, 122B, 122B,... Are provided at equal intervals on the outer peripheral surface of the base 12B and at the edges on both long sides of the notches 121B, 121B.

  FIG. 4 is a schematic enlarged view in which a part of FIG. 3 is enlarged. Each knob 25 (or lever 24) including the stationary balls 25B and 25B sliding on the outer peripheral surface of the base 12B is configured to rotate on the outer peripheral surface of the base 12B in the circumferential direction as described above. Yes. On the other hand, since the springs 25C and 25C are interposed between the stationary balls 25B and 25B and the recesses 25A and 25A, the stationary balls 25B and 25B are always attached to the outer peripheral surface of the base 12B by the springs 25C and 25C. It is energized. On the outer peripheral surface of the base 12B, stationary recesses 122B, 122B, 122B,... Are provided at equal intervals on the sliding path of the stationary balls 25B, 25B. Therefore, when the stationary balls 25B and 25B slide on the outer peripheral surface of the base 12B, the stationary balls 25B and 25B are fitted into the stationary recesses 122B, 122B, 122B,. That is, the user operates the knobs 25, 25 (lever 24, 24) to rotate the substrates 22, 22 around the rotation shaft 23, thereby irradiating the illumination device according to the first embodiment of the present invention. By adjusting the area (ΔW), it becomes possible to make the substrates 22 and 22 stand still in the required predetermined area. When adjusting the irradiation area (ΔW) of the illumination device again, a force greater than the urging force of the springs 25C and 25C for urging the stationary balls 25B and 25B is applied to the knobs 25 and 25, and the stationary balls 25B and 25B are moved. What is necessary is just to pull out and slide from stationary recessed part 122B, 122B, 122B, .... In addition, since the operations of the knobs 25 and 25 (lever 24 and 24) are performed on the base 12B side, even if the operation of the irradiation area during use of the lighting device is performed, the irradiation of the lighting device is obstructed. There is no.

  Hereinafter, an adjustment example of the irradiation area (ΔW) of the lighting apparatus according to Embodiment 1 of the present invention will be described. FIG. 5 is an exemplary view showing an installation example of the illumination device according to the first embodiment of the present invention, and FIG. 6 is a longitudinal sectional view showing a state of the substrates 22 and 22 before the adjustment of the irradiation region (ΔW). FIG. 7 is a longitudinal sectional view showing the state of the substrates 22 and 22 after adjustment of the irradiation area (ΔW).

  The room R includes one door D and a window. The ceiling C is above the door D, and the lighting device is installed near the side wall W where the door D is provided.

  Before the adjustment of the irradiation area (ΔW), as shown in FIG. 6, the surface directions of the two substrates 22 and 22 form a flat angle parallel to the ceiling C, and are mounted on the lower surfaces of the substrates 22 and 22. A considerable proportion of the light emitted from the LEDs 21, 21, 21,... That is, a considerable proportion of light illuminates the side wall W that does not require irradiation, and the proportion of light reaching far from the side wall W is reduced, resulting in the concentration of light near the side wall W. Accordingly, uneven brightness occurs in the entire room R.

  On the other hand, after adjusting the irradiation area (ΔW), by operating the knobs 25 and 25 (lever 24 and 24), the two substrates 22 and 22 form an obtuse angle as shown in FIG. , 22 is rotated so that the lower surface of the room 22 faces the center of the room R. Therefore, among the light emitted from the white LEDs 21, 21, 21,..., The ratio of illuminating the side wall W is greatly reduced, and the ratio of the light reaching far from the side wall W is greatly increased. That is, it is possible to mitigate unevenness in brightness in the entire room R due to the installation location of the lighting device.

  The present invention is particularly suitable when a highly directional light source such as an LED is used as in the lighting device of the present embodiment. When the directivity of the light source is strong, the irradiation area is narrowly limited, but adjustments such as expansion, reduction, and change of the irradiation area can be easily performed by the adjustment unit.

  In the first embodiment described above, the example in which the driving unit 31 is separated from the light emitting unit 2 and provided in the housing 3 has been described. However, the present invention is not limited to this, and the upper surfaces of the substrates 22 and 22 are described. That is, you may comprise so that white LED 21,21,21 ... may be provided in the surface where it is not mounted.

  In the above-described first embodiment, the case where the irradiation area of the illumination device according to the present invention is adjusted by operating the substrates 22 and 22 rotatably held on the rotation shaft 23 has been described as an example. However, it is not limited to this. For example, the substrates 22 and 22 may be fixed to two rotation axes, respectively, and the rotation axes may be rotated to operate the substrates 22 and 22 to adjust the irradiation area.

(Embodiment 2)
FIG. 8 is a longitudinal sectional view showing the configuration of the lamp 1 of the lighting device according to the second embodiment of the present invention, and FIG. 9 shows the irradiation area (ΔW) of the lighting device according to the second embodiment of the present invention. It is an illustration figure which shows the example of adjustment. The same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  The substrates 22 and 22 of the lighting device according to Embodiment 2 of the present invention are flexible sheet-like, and have a rectangular shape whose length direction is the facing direction of the caps 12A and 12B. The substrates 22 and 22 have a length slightly longer than the length of the protective cylinder 11 and a width smaller than the inner diameter of the protective cylinder 2. Either one of the long sides of the substrates 22 and 22 is pivotally penetrated by a rotating shaft 23 whose both ends are fixed to the lower side edge of the bases 12A and 12B. 22 and 22 are comb-like. On the other hand, the other long side part of both the boards 22 and 22 is penetrated by the support bars 26 and 26, respectively. The support rods 26 and 26 have a longer length than the substrates 22 and 22, and both ends are rotatably held by levers 24 and 24, respectively. That is, since the substrates 22 and 22 have flexibility, both long side portions are passed through the rotation shaft 23 and the support rods 26 and 26, respectively, and are held in a slightly bent state. A plurality of white LEDs 21, 21, 21... Are mounted on the lower surfaces of the substrates 22 and 22.

  Unlike the lighting device according to the first embodiment, the lighting device according to the second embodiment includes two knobs 25 and 25 on both caps 12A and 12B, respectively. In detail, the other long side part of each board | substrate 22 and 22 is each penetrated by the two support rods 26 and 26, and the both ends of each support rod 26 and 26 rotate to the two levers 24 and 24, respectively. Held possible. That is, two levers 24, 24 are provided per one support rod 26, and the levers 24, 24 are connected to two knobs 25, 25 provided on both caps 12A, 12B, respectively. Accordingly, one substrate 22 can be rotated by operating the two knobs 25, 25. Therefore, the lever 24 and the knob 25 constitute an adjustment unit that controls the direction of the light source and adjusts the irradiation region.

  In the illuminating device according to Embodiment 2, when the irradiation area (ΔW) is adjusted, as shown in FIG. 9, the bending state of each of the substrates 22 and 22 changes. Therefore, the irradiation directions of the plurality of white LEDs 21, 21, 21,... Mounted on the substrates 22 and 22 are also individually changed, and fine adjustment in irradiation within the irradiation region (ΔW) is performed. Become.

  In the first embodiment and the second embodiment described above, the case of manually adjusting the irradiation area (ΔW) of the lighting apparatus according to the present invention has been described as an example. A device may be provided, and the knobs 25 and 25 (lever 24 and 24) may be operated in accordance with a signal from the remote control device.

  The embodiment has been described by exemplifying a straight tube LED lamp using an LED as a light source. However, the light source is not limited to the LED, and other light sources such as an EL may be used.

It is a partial longitudinal cross-sectional view at the time of fixing the illuminating device which concerns on Embodiment 1 of this invention to a ceiling. It is sectional drawing by the II-II line of FIG. It is sectional drawing by the III-III line of FIG. FIG. 4 is a schematic enlarged view in which a part of FIG. 3 is enlarged. It is an illustration figure which shows the example of installation of the illuminating device which concerns on Embodiment 1 of this invention. It is a longitudinal cross-sectional view which shows the state of a board | substrate before adjustment of the irradiation area | region ((DELTA) W) of the illuminating device which concerns on Embodiment 1 of this invention. It is a longitudinal cross-sectional view which shows the state of a board | substrate after adjustment of the irradiation area | region ((DELTA) W) of the illuminating device which concerns on Embodiment 1 of this invention. It is a longitudinal cross-sectional view which shows the structure of the lamp | ramp of the illuminating device which concerns on Embodiment 2 of this invention. It is an illustration figure which shows the example of adjustment of the irradiation area | region ((DELTA) W) of the illuminating device which concerns on Embodiment 2 of this invention.

Explanation of symbols

1 Lamp 2 Light emitting part 12A, 12B Base 21 White LED
22 Substrate 23 Rotating shaft 24 Lever 25 Knob

Claims (2)

In an illumination device having a directional light source,
A plurality of substrates before Symbol light source is mounted,
A straight tube protection cylinder for accommodating the plurality of substrates;
A rotation shaft that is provided inside the protection tube along the longitudinal direction of the protection tube, and that holds one side of each of the plurality of substrates so that the plurality of substrates can rotate;
By changing the angle of the plurality of substrates by rotating the substrate about said pivot axis, by comprising an adjusting unit capable of performing adjustment of the irradiation region by controlling the directivity of the light source A lighting device characterized by the above. A base is provided at the longitudinal end of the protective cylinder,
The adjustment unit has a lever provided at an end of the base on the base side ,
Said lever is Yes protrudes through the notch portion provided along a circumferential direction of the outer peripheral surface of the front Symbol ferrule, according to claim 1, characterized in that the guided pivot to said notch Lighting device.

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