WO2017183291A1 - Dispositif d'éclairage - Google Patents

Dispositif d'éclairage Download PDF

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Publication number
WO2017183291A1
WO2017183291A1 PCT/JP2017/006851 JP2017006851W WO2017183291A1 WO 2017183291 A1 WO2017183291 A1 WO 2017183291A1 JP 2017006851 W JP2017006851 W JP 2017006851W WO 2017183291 A1 WO2017183291 A1 WO 2017183291A1
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WO
WIPO (PCT)
Prior art keywords
light
light guide
illumination device
guide
incident
Prior art date
Application number
PCT/JP2017/006851
Other languages
English (en)
Japanese (ja)
Inventor
睦夫 伊藤
英之 石田
Original Assignee
アルプス電気株式会社
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 アルプス電気株式会社 filed Critical アルプス電気株式会社
Priority to KR1020187029247A priority Critical patent/KR20180121611A/ko
Publication of WO2017183291A1 publication Critical patent/WO2017183291A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present invention relates to an illumination device using a light guide.
  • the ring-shaped illumination device examples include an illumination device described in Patent Document 1 and an illumination device described in Patent Document 2.
  • the light guide and the light guide plate have an annular shape or a disk shape in plan view, and guide light incident from a plurality of light sources arranged around the light guide and the light guide plate.
  • the illumination device described in Patent Document 3 includes a plurality of LEDs arranged in a ring shape, and a lens that is provided on the light emitting surface side of the LEDs and collects light emitted from the LEDs in the central axis direction of the ring. And an assembly.
  • the present invention can efficiently arrange a light source to reduce the area occupied by the device, and can further arrange other components around the light guide to effectively use the space.
  • the purpose is to provide.
  • Another object of the present invention is to provide an illumination device in which the luminance of the light emitting region is uniform.
  • an illumination device includes a light source, a first light guide having an incident end face and a surface extending in a predetermined direction as an exit surface, and two facing each other extending in a predetermined direction.
  • a second light guide having one of the surfaces as an incident surface and the other as a light emitting surface, and the first light guide and the second light guide are overlapped so that the exit surface and the incident surface face each other.
  • the light source is opposed to the incident end surface of the first light guide, and a light shielding portion is provided between the incident surface of the second light guide and the light source, so that the light from the light source is guided from the incident end surface to the first light guide.
  • the light-emitting surface is guided to the light body, and the light emitted from the first light guide enters the second light guide and the light emitting surface emits light.
  • the arrangement area of the light source can be reduced and the space can be effectively utilized.
  • the light emitted from the light source does not directly enter the second light guide, but is guided by the first light guide and then enters the second light guide. Therefore, the occurrence of light spots can be suppressed.
  • the second light guide is provided with a light scattering portion in a region overlapped with the light shielding portion, and the light emitting surface of the second light guide is overlapped with the light shielding portion. It is preferable to emit light in the region where the light is present. Thereby, the light intensity when the light guided to the range corresponding to the light source is emitted can be increased, and as a result, the luminance distribution of the emitted light from the second light guide can be made constant, Further, the light source can be made difficult to be visually recognized from the outside.
  • the first light guide is provided with a light scattering portion on at least one of the exit surface and the back surface facing the exit surface. Therefore, it becomes easy to guide the light incident on the first light guide from the light source in a predetermined direction, and the luminance distribution of the light emitted from the first light guide can be made uniform.
  • the illumination device of the present invention it is preferable that a plurality of the light sources and the first light guides are provided so as to be alternately arranged along a predetermined direction. Thereby, even in a configuration in which a plurality of light sources and first light guides are provided, the space can be effectively utilized.
  • the predetermined direction is along a circle and the second light guide is annular. Since a device having a desired planar shape can be realized in this manner, a planar shape can be designed according to a required space.
  • the light shielding portion has a white surface on the second light guide body side. Thereby, light can be reflected efficiently.
  • the luminance distribution of the light emitting surface of the second light guide can be adjusted by changing the color and reflectance of this surface.
  • the light scattering portion of the second light guide is a plurality of recesses recessed inward, and these recesses are larger in size and / or depth toward the front side in the light emission direction from the light source. Is preferably increased. Thereby, the light intensity when the light guided to the range corresponding to the light source is emitted can be increased, and as a result, the luminance distribution of the emitted light from the second light guide can be made constant, Further, the light source can be made difficult to be visually recognized from the outside.
  • the light scattering portion of the first light guide is a plurality of concave portions recessed inward, and it is preferable that the size and / or depth of the concave portions increase as the distance from the light source increases. . Thereby, it becomes easy to guide the light incident on the first light guide from the light source in a predetermined direction, and the luminance distribution of the light emitted from the first light guide can be made uniform.
  • a reflection part capable of reflecting light is disposed so as to face the back surface of the first light guide. Therefore, since the light radiate
  • the first light guide and the second light guide are held together by a translucent adhesive.
  • the first light guide and the second light guide can be reliably held together while suppressing a decrease in the intensity of light traveling from the first light guide to the second light guide.
  • the third light guide between the first light guide and the second light guide in which one of two surfaces extending in a predetermined direction and facing each other is an incident surface and the other is an output surface.
  • a third light guide having an exit surface facing the second light guide, the plurality of exit surfaces extending in a groove shape along a predetermined direction and recessed toward the side away from the second light guide It is preferable that the size and / or depth of the recess increases as the distance from the light source increases. Thereby, it becomes possible to guide the light incident on the third light guide further along the predetermined direction, and the distribution of the incident light intensity on the incident surface of the second light guide can be made uniform.
  • the first light guide and the second light guide are preferably in the form of a sheet. Thereby, it is possible to easily manufacture an illuminating device that is easily reduced in thickness.
  • an illuminating device capable of efficiently utilizing a space by efficiently arranging a light source and arranging other parts around the light guide. Further, it is possible to provide an illumination device in which the luminance of the light emitting region is uniform.
  • FIG. 1 is a top view which shows the structure of the illuminating device of FIG. 1
  • FIG. 2 is a top view which shows arrangement
  • A) is a top view which shows the structure of the 1st light guide in embodiment
  • (B) is a bottom view which shows the structure of a 1st light guide.
  • A) is a top view which shows the structure of the 2nd light guide in embodiment
  • (B) is a bottom view which shows the structure of a 2nd light guide.
  • FIG. 1 is an exploded perspective view showing a schematic configuration of an illumination device 10 according to the present embodiment.
  • 2A is a plan view showing the configuration of the illumination device 10
  • FIG. 2B is a plan view showing the arrangement of the LEDs 21 to 24 on the printed circuit board 11.
  • FIG. 3A is a plan view showing the configuration of the first light guide 30 in the present embodiment
  • FIG. 3B is a bottom view showing the configuration of the first light guide 30.
  • FIG. 4A is a plan view showing the configuration of the second light guide 60 in the present embodiment
  • FIG. 4B is a bottom view showing the configuration of the second light guide 60.
  • FIG. 1 is an exploded perspective view showing a schematic configuration of an illumination device 10 according to the present embodiment.
  • FIG. 3A is a plan view showing the configuration of the first light guide 30 in the present embodiment
  • FIG. 3B is a bottom view showing the configuration of the first light guide 30.
  • FIG. 4A is a plan view showing the configuration of the second light guide 60 in the present
  • FIG. 5 is a longitudinal sectional view in which the circumferential direction of the cross section taken along line A in FIG.
  • the plan view is a view seen from the upper side in the Z direction shown in each figure, and the longitudinal sectional view is a cross section along the Z direction.
  • FIG. 1 a schematic configuration is illustrated, and illustration of detailed configurations of the adhesive tapes 13 and 14 and the first groove portions 61, 62, 63, and 64 on the second light guide 60 is omitted.
  • 4B also shows the arrangement of the four translucent tapes 41, 42, 43, 44 and the light shielding tapes 51, 52, 53, 54 in the second light guide 60.
  • the illumination device 10 includes a printed circuit board 11, a reflective tape 12 and LEDs (light emitting diodes) 21 to 24, a first light guide 30, translucent tapes 41 to 44, and a light shielding tape 51.
  • To 54 and the second light guide 60 are stacked in order in the Z direction (vertical direction), and as shown in FIG. 2A, has an annular shape centered on the central axis AX in plan view. is doing.
  • the illumination device 10 is a light emitting device that guides light emitted from the LEDs 21, 22, 23, and 24 and emits illumination light upward from the uppermost second light guide 60, that is, upward in the Z direction. It functions as an illuminating device that illuminates an object and as an illuminating device that illuminates an object space or the like.
  • each component will be described.
  • the printed circuit board 11 has an annular shape and a plate shape centered on the central axis AX, and the reflective tape 12 and LEDs 21 and 22 as light sources on the upper surface. 23 and 24 are fixed.
  • the LEDs 21, 22, 23, and 24 are arranged at equiangular intervals with respect to the central axis AX, and are along the circumferential direction C (predetermined direction) of the ring of the printed circuit board 11 as indicated by arrows in FIG. Light is emitted in the same direction.
  • the reflective tape 12 is arranged between the four LEDs 21, 22, 23, and 24 of the printed circuit board 11 along the circumferential direction C, and reflects incident light from at least the upper side in the Z direction as a reflective portion.
  • adhesive tapes 13 and 14 are fixed to both ends of the upper surface of the reflective tape 12 in the circumferential direction C, and the ends of the first light guide 30 are secured by the adhesive tapes 13 and 14.
  • the first light guide 30 is disposed above the reflective tape 12. This configuration is the same in a range other than the range shown in FIG.
  • the first light guide 30 is made of, for example, polycarbonate or polyurethane into a sheet shape, and has a substantially annular shape along the circumferential direction C as shown in FIGS. 3 (A) and 3 (B).
  • the upper surface 30 t (front surface) facing the bottom surface 60 r of the second light guide 60 is an emission surface.
  • the first light guide 30 is provided with substantially rectangular openings 30a, 30b, 30c, and 30d in a plan view at equal angular intervals with respect to the central axis AX.
  • the outer shape of the first light guide 30 corresponds to the outer shape of the printed circuit board 11.
  • the openings 30a to 30d of the first light guide 30 are arranged at positions corresponding to the LEDs 21 to 24, and the LEDs 21 to 24 are accommodated in the openings 30a to 30d, respectively.
  • the first light guide 30 has a substantially annular shape.
  • the first light guide 30 may be constituted by a part having a substantially arc shape divided by the openings 30a to 30d.
  • the first light guide 30 has four light guide regions 31, 32, 33, and 34 in the circumferential direction C.
  • the light guide region 31 corresponds to the region between the two LEDs 21, 22,
  • the light guide region 32 corresponds to the region between the two LEDs 22, 23,
  • the light guide region 33 is the region between the two LEDs 23, 24.
  • the light guide region 34 corresponds to the region between the two LEDs 24, 21. That is, the LEDs 21, 22, 23, 24 and the light guide regions 31, 32, 33, 34 are alternately arranged in the circumferential direction C.
  • each of the light guide regions 31 to 34 of the first light guide 30 is sandwiched between two LEDs in the circumferential direction C, and one end face of the light guide region in the circumferential direction C is the one of the LEDs. Opposite to the emission surface, the other end surface faces the back surface (non-emission surface) of the other LED.
  • the incident end face 31 a that is one end face in the circumferential direction C of the light guide region 31 faces the emission face 21 a of the LED 21, and the other end face 31 b faces the back face 22 b of the other LED 22.
  • Second groove portions 31c, 32c, 33c, and 34c are formed, respectively.
  • a plurality of these second groove portions 31c, 32c, 33c, and 34c are formed so as to be aligned in the circumferential direction C, and each extend so as to be substantially orthogonal to the circumferential direction C.
  • each of the second groove portions 31c, 32c, 33c, and 34c is formed such that the depth of the groove and the width in the circumferential direction C increase as the distance from the LED that enters the corresponding light guide region increases.
  • the second groove portion 31 c is formed such that the depth of the groove and the width in the circumferential direction C increase as the distance from the LED 21 that enters the light guide region 31 increases.
  • the depth and width of the groove of the second groove portion 31 c are set so as to correspond to the distance from the LED 21.
  • the reflective tape 12 is disposed below the second groove portion 31 c, the light emitted downward from the light guide region 31 is reflected by the reflective tape 12 and enters the light guide region 31 again.
  • the groove-shaped second groove portions 31c, 32c, 33c, and 34c are provided as the light scattering portions, but a plurality of shapes that are recessed inwardly in a dot shape are arranged. Also good.
  • translucent tapes 41, 42, 43, and 44 are disposed on the upper surfaces of the light guide regions 31, 32, 33, and 34 of the first light guide 30.
  • the translucent tapes 41, 42, 43, and 44 are adhesive materials, and the lower surfaces thereof are fixed to the light guide regions 31, 32, 33, and 34, respectively, and the upper surfaces thereof are attached to the second light guide body 60. Fixed.
  • the areas where the translucent tapes 41, 42, 43, and 44 are fixed serve as emission areas on the surfaces (emission surfaces) of the light guide areas 31, 32, 33, and 34 of the first light guide 30, respectively. 2
  • the bottom surface 60r (back surface, incident surface) of the light guide 60 is an incident region, and the light emitted from the emission region of the first light guide 30 is transmitted to advance from the incident region into the second light guide 60. .
  • a light-shielding tape as a light-shielding portion is provided above the LEDs 21, 22, 23, 24 and the openings 30 a, 30 b, 30 c, 30 d of the first light guide 30 so as to cover them.
  • 51, 52, 53, 54 are arranged.
  • the light shielding tapes 51, 52, 53, 54 extend to the front of the translucent tape 41 in the circumferential direction C.
  • the end portions of the light shielding tapes 51, 52, 53, 54 extend to the end portions of the first light guide 30.
  • the light shielding tapes 51, 52, 53, and 54 have lower surfaces coupled to at least the ends of the LEDs 21, 22, 23, and 24 and the light guide regions 31, 32, 33, and 34, respectively, due to the adhesiveness of the surfaces, Two light guides 60 are coupled to each other.
  • the light shielding tapes 51, 52, 53, 54 directly enter the second light guide body 60 without passing through the first light guide body 30, that is, the light emitted from the LEDs 21, 22, 23, 24. Disturb that.
  • the LEDs 21 to 24 can be prevented from being visually recognized from above.
  • the second light guide 60 is disposed above the first light guide 30 via the translucent tapes 41 to 44 and the light shielding tapes 51 to 54.
  • the second light guide 60 is formed in a sheet shape from, for example, polycarbonate or polyurethane, and has an annular shape corresponding to the outer shape of the printed circuit board 11 and the first light guide 30 in a plan view.
  • the light transmitted through the translucent tape 41 is incident on the second light guide 60, and this light is guided in the circumferential direction C, and upward from the upper surface 60t (light emitting surface) as the light emitting region. Light is emitted and the upper surface 60t emits light.
  • the upper surface 60t of the second light guide 60 is provided with first groove portions 61, 62, 63, and 64 that are recessed inward as light scattering portions.
  • the first groove portions 61, 62, 63, 64 are provided so as to correspond to the upper sides of the light shielding tapes 51, 52, 53, 54 and the LEDs 21, 22, 23, 24, respectively.
  • the first groove portions 61, 62, 63, 64 are provided in a region of the second light guide body 60 that is overlapped with the light shielding tape 51.
  • a plurality of first groove portions 61, 62, 63, 64 are formed so as to be aligned in the circumferential direction C, and each extends so as to be substantially orthogonal to the circumferential direction C.
  • light emitted from a certain LED is guided by the first light guide 30, enters the second light guide 60, and is guided along the circumferential direction C in the second light guide 60. It reaches the area corresponding to the LED located on the front side (downstream side, away from the LED) in the light emission direction of the light from the LED, and is emitted to the outside from the first groove portion located above the LED.
  • each of the first groove portions 61, 62, 63, and 64 has a groove depth and a width in the circumferential direction C that are closer to the front side in the light emission direction from the LED located below, that is, as the distance from the LED (light source) increases. It is formed to be large. As a result, the light emitted to the outside from the first groove portions 61, 62, 63, 64 is more likely to be emitted toward the front side in the light emission direction, so that the intensity of the emitted light is even at a position far from the LED that is the emission source. Therefore, the intensity of the light emitted from the first groove portions 61 to 64 to the outside is uniform in the circumferential direction C including the plane portion of the upper surface 60t of the second light guide 60. Can be adjusted.
  • a first groove 61 is disposed above the LED 21 and the light shielding tape 51, and the first groove 61 is on the front side in the traveling direction of the emitted light from the LED 21, that is, on the right side in FIG.
  • the depth of the groove and the width in the circumferential direction C are increased.
  • the first groove 62 disposed above the LED 22 and the light shielding tape 52 also has a groove depth and a width in the circumferential direction C that increase toward the front side in the traveling direction of the emitted light from the LED 22, that is, toward the right side in FIG. It is formed as follows.
  • the first groove portions 61 and 62 By forming the first groove portions 61 and 62 in this way, out of the light emitted from the LED 21 and guided by the light guide region 31 and entering the second light guide 60 through the translucent tape 41, Proceeding upward, the intensity of the light emitted to the outside from the upper surface 60t, which is a plane, and the intensity of the light guided through refraction, reflection, and scattering and emitted to the outside from the first groove 62 above the LED 22 are made equal. It becomes possible. This configuration and the effect are the same in a range other than the range shown in FIG.
  • the LEDs 21 to 24 as light sources and the light guide regions 31 to 34 of the first light guide 30 are alternately arranged along the circumferential direction C, and light emitted from the LEDs 21 to 24 is transmitted around the light guide region. Incident from one end surface in the direction C, emitted from the upper surface 30t along the circumferential direction C to the second light guide 60 side, and further guided to the upper surface 60t side by the second light guide 60 and emitted to the outside. ing. With this configuration, the area occupied by the LEDs 21 to 24 and the first light guide 30 can be reduced and efficiently arranged, and the space can be used effectively.
  • the light shielding tapes 51 to 54 are respectively disposed between the LEDs 21 to 24 and the second light guide 60, the light is not directly incident on the first light guide 30 but is directly incident on the second light guide 60 from the LEDs 21 to 24. Since high intensity light does not enter, the brightness of the emitted light from the second light guide 60 can be made uniform, and the occurrence of light spots can be suppressed.
  • the first groove portions 61 to 64 are provided at positions corresponding to the LEDs 21 to 24 of the second light guide 60, the light guided to the first groove portions 61 to 64 along the circumferential direction C is emitted.
  • the light intensity at the time can be increased, and as a result, the luminance distribution of the emitted light from the second light guide 60 can be made constant.
  • the reflective tape 12 Since the reflective tape 12 is provided, the light leaking downward from the first light guide 30 can be reflected and incident again on the first light guide 30, so that the light emitted from the LEDs 21 to 24 can be reduced. Irradiation can be efficiently used for illumination.
  • the 1st light guide 30 and the 2nd light guide 60 were made into the different body via the translucent tape 41, it replaces with this and does not provide the translucent tape 41, but 2nd.
  • the light guide 60 and the first light guide 30 may be integrally formed.
  • an illumination device having an annular planar shape has been shown.
  • the direction in which the first light guide, the second light guide, and the like extend is not limited to the circumferential direction of the ring, and is, for example, U-shaped. There may be.
  • the number of LEDs and light guide regions is four, but this number is not limited to four.
  • the translucent tape and the light shielding tape may be in a form other than the tape, for example, a layer formed by printing.
  • FIG. 6 is a longitudinal sectional view of a part of an illumination device according to a modification.
  • FIG. 7 is a plan view showing the relationship between the light guide region of the third light guide 130 and the corresponding LED 121 in this modification.
  • FIG. 6 is a longitudinal sectional view showing a cross section of a range corresponding to the light guide region 131 of the third light guide 130 with the circumferential direction expanded laterally, similarly to FIG. 5.
  • the light guide region 131 of the third light guide 130 is provided on the upper surface of the light guide region 31 of the first light guide 30 via the adhesive tapes 113 and 114. ing.
  • the light guide region 131 has the same outer shape as the light guide region 31 of the first light guide 30 in a plan view, and is disposed so as to be opposed to each other in the vertical direction.
  • An incident end face 131 a that is one end face of the light guide region 131 faces the exit face 121 a of the LED 121, and the other end face 131 b faces the back face 122 b (non-exit face) of the other LED 122.
  • the emitted light from the LED 121 enters the light guide region 131 from the incident end face 131a.
  • light incident on the light guide region 31 from the LED 121 exits from the upper surface 31t (emission surface) of the light guide region 31, and enters the bottom surface 131e to 131.
  • the other light guide regions 32, 33, and 34 of the first light guide 30 are also provided with the light guide region of the third light guide 130 with the same configuration and arrangement as the light guide region 131.
  • the constituent material and characteristics of the third light guide 130 are the same as those of the first light guide 30.
  • the adhesive tapes 113 and 114 have the same material and configuration as the adhesive tapes 13 and 14 shown in FIG. 5 and are disposed above the adhesive tapes 13 and 14.
  • the third light guide 130 is a plurality of third grooves 131c (concave portions) extending in parallel with each other along the circumferential direction C and recessed inward as shown in FIG.
  • the third groove 131 c is recessed toward the printed circuit board 11, that is, away from the second light guide 60, and becomes deeper in steps as the distance from the LED 121 increases.
  • the third groove portion 131c having such a configuration, it becomes possible to guide incident light from the LED 121 for a long time along the circumferential direction C, and therefore, from the light guide region 131 to the second light guide body 60. It is possible to make the intensity of the emitted light uniform in the circumferential direction C.
  • This configuration and operational effects are the same in ranges other than those shown in FIGS.
  • FIGS. 6 to 7 show examples in which the third groove 131c is composed of five stages of grooves G1 to G5, but the number of stages is not limited to this. Further, the shape of the third groove portion is not limited to the shape shown in FIGS. 6 to 7 as long as it extends stepwise along the circumferential direction C. Furthermore, without providing the third light guide 130, a step-like groove similar to the third groove 131c may be formed on the upper surface 30t of the first light guide 30 as a light scattering part.
  • the present invention has been described with reference to the above embodiment, the present invention is not limited to the above embodiment, and can be improved or changed within the scope of the purpose of the improvement or the idea of the present invention.
  • the illumination device according to the present invention is useful in that the light source can be arranged efficiently and the space around the light guide can be used effectively.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Planar Illumination Modules (AREA)

Abstract

Le problème décrit par la présente invention consiste à fournir un dispositif d'éclairage permettant de positionner efficacement une source de lumière et de réduire la surface occupée par le dispositif, et à positionner d'autres composants autour d'un guide de lumière et utiliser efficacement l'espace. À cet effet, la présente invention comprend une source de lumière, un premier guide de lumière qui présente une surface d'extrémité d'entrée et dans lequel la surface s'étendant dans une direction prédéterminée est une surface de sortie, et un second guide de lumière dans lequel l'une de deux surfaces qui s'étendent dans une direction prédéterminée et qui se font face est une surface d'entrée et l'autre des deux surfaces est une surface électroluminescente. Le premier guide de lumière et le second guide de lumière se chevauchent de sorte que la surface de sortie et la surface d'entrée se fassent face. La source de lumière fait face à la surface d'extrémité d'entrée du premier guide de lumière. Une partie de protection contre la lumière est disposée entre la surface d'entrée du second guide de lumière et la source de lumière. La lumière provenant de la source de lumière est guidée de la surface d'extrémité d'entrée vers le premier guide de lumière. La lumière sortant du premier guide de lumière entre dans le second guide de lumière, et la surface électroluminescente émet de la lumière.
PCT/JP2017/006851 2016-04-22 2017-02-23 Dispositif d'éclairage WO2017183291A1 (fr)

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JP2016085986 2016-04-22
JP2016-085986 2016-04-22

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114441031A (zh) * 2022-02-16 2022-05-06 河南科技大学 基于导光棒的感光装置、显示亮度调节系统及感光灯

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007220537A (ja) * 2006-02-17 2007-08-30 Alps Electric Co Ltd 照光式回転操作装置
WO2010055940A1 (fr) * 2008-11-17 2010-05-20 アルプス電気株式会社 Dispositif d'éclairage et procédé pour fabriquer une plaque de guidage de lumière utilisée dans celui-ci
JP2012089291A (ja) * 2010-10-18 2012-05-10 Mitsubishi Electric Corp 照明用光源及び照明装置
JP2012209091A (ja) * 2011-03-29 2012-10-25 Jvc Kenwood Corp バックライト装置
JP2013080713A (ja) * 2012-12-25 2013-05-02 Mitsubishi Electric Corp 照明装置及びランプ
JP2014116079A (ja) * 2012-12-06 2014-06-26 Samsung R&D Institute Japan Co Ltd 医療用照明装置
JP2015111520A (ja) * 2013-12-06 2015-06-18 アルプス電気株式会社 照光装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007220537A (ja) * 2006-02-17 2007-08-30 Alps Electric Co Ltd 照光式回転操作装置
WO2010055940A1 (fr) * 2008-11-17 2010-05-20 アルプス電気株式会社 Dispositif d'éclairage et procédé pour fabriquer une plaque de guidage de lumière utilisée dans celui-ci
JP2012089291A (ja) * 2010-10-18 2012-05-10 Mitsubishi Electric Corp 照明用光源及び照明装置
JP2012209091A (ja) * 2011-03-29 2012-10-25 Jvc Kenwood Corp バックライト装置
JP2014116079A (ja) * 2012-12-06 2014-06-26 Samsung R&D Institute Japan Co Ltd 医療用照明装置
JP2013080713A (ja) * 2012-12-25 2013-05-02 Mitsubishi Electric Corp 照明装置及びランプ
JP2015111520A (ja) * 2013-12-06 2015-06-18 アルプス電気株式会社 照光装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114441031A (zh) * 2022-02-16 2022-05-06 河南科技大学 基于导光棒的感光装置、显示亮度调节系统及感光灯
CN114441031B (zh) * 2022-02-16 2024-01-19 河南科技大学 基于导光棒的感光装置、显示亮度调节系统及感光灯

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