WO2012105713A1 - Dispositif d'éclairage et instrument électronique utilisant celui-ci - Google Patents

Dispositif d'éclairage et instrument électronique utilisant celui-ci Download PDF

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Publication number
WO2012105713A1
WO2012105713A1 PCT/JP2012/052645 JP2012052645W WO2012105713A1 WO 2012105713 A1 WO2012105713 A1 WO 2012105713A1 JP 2012052645 W JP2012052645 W JP 2012052645W WO 2012105713 A1 WO2012105713 A1 WO 2012105713A1
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WO
WIPO (PCT)
Prior art keywords
light guide
light
light source
guide means
unit
Prior art date
Application number
PCT/JP2012/052645
Other languages
English (en)
Japanese (ja)
Inventor
良 阿部
花野　雅昭
泰徳 金澤
健治 高田
明 永宗
Original Assignee
シャープ株式会社
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.)
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Publication of WO2012105713A1 publication Critical patent/WO2012105713A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/01—Housings, e.g. material or assembling of housing parts
    • F21V15/012—Housings with variable shape or dimensions, e.g. by means of elastically deformable materials or by movement of parts forming telescopic extensions of the housing body
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0075—Arrangements of multiple light guides
    • G02B6/0076—Stacked arrangements of multiple light guides of the same or different cross-sectional area
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
    • 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
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • 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
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/30—Elongate light sources, e.g. fluorescent tubes curved
    • F21Y2103/33—Elongate light sources, e.g. fluorescent tubes curved annular
    • 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]
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources

Definitions

  • the present invention relates to a lighting device used as indoor lighting, and more particularly to a lighting device that includes a light source and a light guide plate, and that emits light from the light source through a light guide plate from a light emitting surface, and an electronic apparatus using the same. .
  • Patent Document 1 proposes an LED (Light Emitting Diode) surface light source device that secures a wide irradiation area by combining a bar-shaped light guide plate and a thin planar light guide plate.
  • FIG. 12 is a schematic diagram of the surface light source device disclosed in Patent Document 1. Light from the light source module 1201 is once incident on the end surface of the rod-shaped light guide plate 1202, and further, a planar light guide plate bonded from the side surface of the rod-shaped light guide plate 1202 with a transparent resin that is thinner than this. Light is incident on 1203 and light is extracted from the planar light guide plate 1203.
  • LED Light Emitting Diode
  • Patent Document 2 proposes a double-sided light emitting planar light source that can adjust the amount of light introduced into two light guide plates.
  • FIG. 13 is a schematic view of a double-sided light emitting surface light source disclosed in Patent Document 2.
  • the light quantity introduced into the light guide plates 1301 and 1302 is adjusted by one light source 1304 with respect to the two light guide plates 1301 and 1302 stacked with the reflection plate 1303 interposed therebetween, and double-sided light emission is performed.
  • Japanese Patent Publication Japanese Patent Laid-Open No. 11-232921 (published on August 27, 1999)” Japanese Patent Publication “Japanese Patent Laid-Open No. 2005-50630 (published on February 24, 2005)”
  • the two light guide plates 1301 and 1302 are fixed by being sandwiched between the casings 1305 at the ends, so that they are guided when the environmental temperature changes.
  • the members may be deformed due to the difference in thermal expansion coefficient between the light plate 1301, the light guide plate 1302, and the housing 1305, and distortion or misalignment with components during assembly may lead to a decrease in optical performance.
  • the present invention has been made in view of the above-described problems, and an object of the present invention is to realize an illumination device that can alleviate the influence of expansion of a member due to heat and suppress the bending of a light guide plate.
  • An illuminating device is an illuminating device having a light source, a light guide means for guiding light from the light source, and a base to which the light source is attached, and a positioning pin or a pin provided on the base
  • the receiving portion is engaged with a pin receiving portion or a positioning pin provided in the light guide means, and there is a gap for relaxing thermal expansion between the positioning pin and the pin receiving portion.
  • the lighting device is characterized in that the light source includes a plurality of light emitting sources. Moreover, the illuminating device according to the present invention is characterized in that the plurality of light emitting sources are configured by a combination of light emitting sources having different chromaticities.
  • the light guide means includes a first light guide means and a second light guide means for guiding light from the light source
  • the base is the first light guide means.
  • the light source is interposed between the second light guide means, and the light source includes a first light source that makes light incident on an incident surface of the first light guide means, and a first light source that makes light incident on an incident surface of the second light guide means. It is characterized by comprising two light sources.
  • the lighting device according to the present invention includes a positioning pin or pin receiving portion provided on both surfaces of the base and a pin receiving portion or positioning pin provided in each of the first light guide means and the second light guide means.
  • the outer peripheral portions of the first light guide means and the second light guide means are fixed by an outer frame.
  • the lighting device according to the present invention is characterized in that a coefficient of thermal expansion of the outer frame is substantially the same as a coefficient of thermal expansion of the first light guide unit and the second light guide unit.
  • a part of the light guide unit and the light source are covered with a cover, and an outer peripheral portion of the cover is in contact with the light guide unit.
  • the illuminating device according to the present invention further includes a diffusing unit on the exit surface side of the light guiding unit.
  • an electronic apparatus is characterized by including any one of the illumination devices described above.
  • an illuminating device that can alleviate the influence of expansion of members due to heat and suppress the bending of the light guide plate.
  • FIG. 1 is an exploded view of a double-sided light emitting illumination device according to Embodiment 1.
  • FIG. It is a detailed view about the light source installed in the base which concerns on Embodiment 1.
  • FIG. It is the figure demonstrated regarding the positioning of the 1st light guide means with respect to the base which concerns on Embodiment 1, and a 2nd light guide means. It is sectional drawing of the double-sided light-emitting illuminating device which concerns on Embodiment 1.
  • FIG. 1 is an exploded view of a double-sided light emitting illumination device according to Embodiment 1.
  • FIG. It is a detailed view about the light source installed in the base which concerns on Embodiment 1.
  • FIG. It is the figure demonstrated regarding the positioning of the 1st light guide means with respect to the base which concerns on Embodiment 1, and a 2nd light guide means.
  • FIG. 1 It is a block diagram of the 1st light source which concerns on Embodiment 1, and a 2nd light source. It is the figure explaining the fixing method in the outer peripheral part of the 1st light guide means which concerns on Embodiment 1, and a 2nd light guide means. It is the figure (a) which looked at the double-sided light-emitting illuminating device which concerns on Embodiment 2 from the 1st spreading
  • FIG. 1A is a diagram viewed from the first light guide unit 11 side of the illumination device 100
  • FIG. 1B is a diagram viewed from the second light guide unit 12 side of the illumination device 100
  • FIG. 2 is an exploded view of the lighting device 100
  • FIG. 3 is an enlarged view of the base portion.
  • the cover 7 is omitted to illustrate the light source 4.
  • the illuminating device 100 in this embodiment includes a first light guide means 11, a second light guide means 12, a base 3 interposed between the two light guide means, and a base 3 as shown in FIG.
  • a light source 4 that is installed and makes light incident on the first light guide means 11 and the second light guide means 12, a reflection means 5 interposed between the two light guide means and the base 3, and the two light guides.
  • a coupling portion reflecting means 6 disposed in the vicinity of the coupling portion between the means and the light source 4, a cover 7 covering the coupling portion between the two light guiding means and the light source 4, the first light guiding means 11, and the second light guiding means.
  • the outer frame 10 covers the entire circumference of the twelve.
  • FIG. 4 is a diagram illustrating the positioning means of the first light guide means 11 and the second light guide means 12 with respect to the base 3.
  • the first light guide unit 11 and the second light guide unit 12 are positioned with respect to the base 3 by positioning pins 8 provided on the base 3 and pin receivers provided on the first light guide unit 11 and the second light guide unit 12. This is done by engaging the part 9. Since the light source 4 is attached to the base 3 as described above, the light source 4, the first light guide means 11, and the second light guide are engaged by engaging the positioning pin 8 and the pin receiving portion 9. Positioning with the means 12 can be performed accurately and easily.
  • the positioning pins 8 are provided so as to protrude from both the upper and lower surfaces of the base 3 at positions surrounded by a circle in the lower right diagram of FIG. 4, and the shape of the pin receiving portion 9 provided in the first light guide means 11 is The U-shape follows the radial direction of the light guide means. In a state where the positioning pin 8 and the pin receiving portion 9 are engaged, there is a gap W between the positioning pin 8 and the pin receiving portion 9. This is to prevent the member from being distorted or bent in response to heat from the light source 4 or expansion or contraction of the member due to a change in environmental temperature when the lighting device is used.
  • the number and power of the light sources 4 are often large, and there is a high possibility that the lighting device will be affected by heat.
  • the shape of the pin receiving portion 9 slightly larger than the outer periphery of the positioning pin 8 and providing the gap W, it is possible to suppress the influence on the lighting device due to the expansion and contraction of the member accompanying the temperature change.
  • the size, shape, position, and number of the positioning pins 8 and the pin receiving portions 9 may be set as appropriate according to the specifications of the lighting device 100.
  • the numbers are as shown in the lower right diagram of FIG. It is desirable that four are provided at equal intervals on one side. By providing in this way, the light guiding means and the base are less likely to be displaced in the left, right, and upper and lower directions when viewed from above.
  • the positioning pin 8, the first light guide means 11, and the second light guide means 12 are provided on the base 3, but the pin receiver 9 and the first light guide means are provided on the base 3. 11.
  • Positioning pins 8 may be provided on the second light guide means 12.
  • FIG. 5 is a cross-sectional view of the illumination device 100 according to the present embodiment, where the light source 4 is coupled to the first light guide unit 11 and the second light guide unit 12, and the incident surface of each light guide unit. It is a figure explaining the output surface.
  • the first light guide means 11 is mainly made of acrylic resin, and has an incident surface 111 and an output surface 112, and the incident surface 111 and the output surface 112 are in a substantially vertical positional relationship.
  • the second light guiding means 12 is also mainly made of acrylic resin, and has an incident surface 121 and an output surface 122, and the positional relationship between the incident surface 121 and the output surface 122 is substantially vertical.
  • the light source 4 includes a first light source 41 that makes light incident on the first light guide unit 11 and a second light source 42 that makes light incident on the second light guide unit 2.
  • the 1st light source 41 and the 2nd light source 42 are arrange
  • each of the first light source 41 and the second light source 42 includes a plurality of LEDs.
  • the first light source 41 is controlled by the first light source control unit 410
  • the second light source 42 is controlled by the second light source control unit 420.
  • the light source 4 is configured by the first light source 41 for the first light guide unit 11 and the second light source 42 for the second light guide unit 12, thereby the first light source 41 and the second light source 42. It is possible to individually adjust the light output, and as a result, it is possible to adjust the amount of light extracted from the exit surface 112 and the exit surface 122.
  • Each of the first light guide unit 11 and the second light guide unit 12 has a light emission surface 112, a counter surface 113 facing the light output surface 122, and a counter surface 123 having diffusion patterns such as diffusion printing, prisms, and microlenses (not shown). It has been subjected. These diffusion patterns serve to extract the outgoing light from the first light source 41 and the second light source 42 incident from the incident surface 111 and the incident surface 121 to the exit surface 112 and the exit surface 122 side.
  • diffusion patterns serve to extract the outgoing light from the first light source 41 and the second light source 42 incident from the incident surface 111 and the incident surface 121 to the exit surface 112 and the exit surface 122 side.
  • the reflecting means 5 is disposed between the first light guide means 11 and the base 3 and between the second light guide means 12 and the base 3.
  • the reflection means 5 reflects light emitted from the facing surface 113 and the facing surface 123 facing the exit surface of each light guide means, and takes out the light from the exit surface 112 and the exit surface 122 again, thereby making more effective use of the light. Used for.
  • a coupling portion reflecting member 6 is provided in the vicinity of the coupling portion between the light source 4, the first light guide unit 11, and the second light guide unit 12. Since the light emitted from the light source 4 has a spread, some light having a large radiation angle is not incident on the respective incident surfaces of the first light guide unit 11 and the second light guide unit 12. Therefore, the coupling portion reflecting member 6 is arranged so that light that is off the incident surface can be guided to the incident surface again by reflection and the light use efficiency from the light source 4 can be improved.
  • FIG. 6 is a diagram showing the configuration of the first light source 41 and the second light source 42 in detail.
  • a plurality of white LEDs 43 and a plurality of light bulb color LEDs 44 are mixed.
  • the white LED 43 needs to be lit.
  • the white LED 43 and the light bulb color LED 44 by turning on the white LED 43 and the light bulb color LED 44 at the same time and adjusting the ratio of the amount of light of each color, it is possible to change the color tone of the light extracted from the emission surface 112 and the emission surface 122.
  • first light source 41 and the second light source 42 can be controlled independently by the first light source control means 410 and the second light source control means 420, the light extracted from the emission surface 112 and the emission surface 122 is independent. It is possible to control the color tone.
  • white and bulb-color LED light sources are used as the configuration of the light source for color tone control.
  • the type, color, and arrangement of the light sources to be used are not limited to this, and depending on the purpose. The type, color, arrangement, and number may be determined as appropriate.
  • the cover 7 is basically preferably lightweight, and may be determined in consideration of design and the like. Moreover, since the outer peripheral part of the upper and lower covers 7 fixes the first light guide means 11 and the second light guide means 12, the vertical positions of the first light guide means 11 and the second light guide means 12 respectively. And is effective in suppressing the bending of the light guide means generated in the direction of gravity.
  • the upper and lower covers 7 are aligned and combined with the concave and convex portions inside the base 3 shown in FIG.
  • FIG. 7 is a diagram for explaining a fixing method in the outer peripheral portion of the first light guide unit 11 and the second light guide unit 12.
  • the outer peripheral portions of the first light guide unit 11 and the second light guide unit 12 are fixed by the outer frame 10 and are integrated.
  • any method may be used as long as it can be firmly bonded and fixed, for example, an adhesive or welding.
  • the material used for the outer frame 10 is a material that can withstand thermal expansion, and preferably has a thermal expansion coefficient that is the same as or close to that of the light guide means. Specifically, for example, acrylic resin, polycarbonate, ABS resin, aluminum or the like is used.
  • each light guide means does not come off the base 3 in any posture.
  • each light guide means does not need to be directly fixed to the base 3 by screwing or bonding.
  • the light guide means and the base 3 are directly fixed by screwing, bonding, or the like, when the environmental temperature changes, or when heat is generated due to the lighting of the light source 4, each light guide means from the difference in thermal expansion coefficient of each member.
  • the first light guide unit 11 and the second light guide unit 12 are not completely fixed to the base 3 using an adhesive or the like. It is possible to prevent member distortion caused by the difference in rate.
  • the outer frame 10 is fixed so as to cover the entire circumference of the first light guide unit 11 and the second light guide unit 12, the outer frame 10 faces the opposing surface 113 and the opposing surface 123 side of the light guide unit. It is possible to prevent dust and dust from entering and prevent deterioration of optical characteristics.
  • the thermal expansion coefficient of the outer frame 10 is substantially the same as that of the first light guide means 11 and the second light guide means 12.
  • the members are bonded and fixed when the environmental temperature changes.
  • the illumination device 100 is suspended by a wire.
  • the LED power source installed on the ceiling and the light source 4 are connected by wiring.
  • the hanging method a wire is hung from the LED power source installed on the ceiling, and the lighting apparatus 100 is suspended.
  • the tip of the wire is connected to a hanging fitting provided on the base 3 or cover 7 of the lighting fixture.
  • the suspension wire and the wiring may be used together, or the wiring connecting the power source and the light source may be separately provided. In this case, only one wiring is sufficient.
  • FIGS. 2 An illumination device 200 according to Embodiment 2 of the present invention will be described with reference to FIGS.
  • the present embodiment is different from the first embodiment in that the lighting device 200 includes the first diffusing unit 81 and the second diffusing unit 82.
  • 8A is a diagram viewed from the first light guide unit 11 side of the illumination device 200
  • FIG. 8B is a diagram viewed from the second light guide unit 12 side of the illumination device 200.
  • FIG. FIG. 9 is an exploded view of the lighting device 200.
  • the illuminating device 200 of Embodiment 2 has the same configuration as the illuminating device 100 of the first embodiment except for the first diffusing unit 81 and the second diffusing unit 82, and the same reference numerals denote the same components. Is attached.
  • various technically preferable limitations for carrying out the present invention are given, but the scope of the present invention is not limited to the following embodiments and drawings.
  • the illuminating device 200 has light incident on the first light guide means 11, the second light guide means 12, the base 3 interposed between the two light guide means, and the two light guide means.
  • First diffusing means 81 and second diffusing means 82 disposed on the exit surface side of each of the two light guiding means, a cover 7 covering the coupling portion between the two light guiding means and the light source 4, and the first light guiding means 11 and an outer frame 10 that covers the entire circumference of the second light guiding means 12.
  • FIG. 10 is a cross-sectional view of the lighting device 200 according to the present embodiment.
  • the first diffusion means 81 is disposed on the emission surface 112 side of the first light guide means 11, and the second diffusion means 82 is disposed on the emission surface 122 side of the second light guide means 12.
  • the light extracted from the emission surface 112 and the emission surface 122 of the first light guide unit 11 and the second light guide unit 12 is incident on the first diffusion unit 81 and the second diffusion unit 82, respectively.
  • the light reaching each diffusion means is diffused by passing through the diffusion means 81 and 82, and the illuminance distribution of illumination is made uniform.
  • the vicinity of the coupling portion between the light source 4 and each light guide means is covered by being sandwiched between the upper and lower covers 7, the first diffusing means 81, and the second diffusing means 82.
  • the outer periphery of the cover 7 is fixed to the first diffusion means 81 and the second diffusion means 82, respectively.
  • the first light guide unit 11, the second light guide unit 12, the base 3, the light source 4, the reflection unit 5, and the coupling unit reflection unit 6 include the first diffusion unit 81, the second diffusion unit 82, and the upper and lower sides. Therefore, it is possible to prevent dust and dust from entering.
  • the first diffusing unit 81 and the second diffusing unit 82 bend the light guiding unit generated in the gravity direction by regulating the positions of the first light guiding unit 11 and the second light guiding unit 12 in the Z direction. There is an effect to suppress.
  • FIG. 11 is a diagram illustrating a fixing method in the outer peripheral portion of the first light guide unit 11 and the second light guide unit 12.
  • the outer peripheral portions of the first light guide unit 11 and the second light guide unit 12 are fixed by the outer frame 10 and are integrated. Further, the first diffusing unit 81 and the second diffusing unit 82 are also fixed to the outer frame 10 and integrated.
  • any method may be used as long as it is a method capable of firmly bonding and fixing, such as an adhesive or welding.
  • each light guide means and each diffusion means are It will not come off the base 3 in any posture. Since the outer frame 10 is fixed so as to cover the entire circumference of the first light guide means 11 and the second light guide means 12, dust or dust from the outer peripheral portion to the opposing surface 113 and the opposing surface 123 side of the light guide means It is possible to prevent dust from entering and prevent deterioration of optical characteristics.
  • the outer peripheral portions of the diffusing means 81 and the diffusing means 82 are also substantially hermetically fixed to the outer frame 10, dust and dust intrusion from the outer peripheral portions to the exit surface 112 and the exit surface 122 side of the light guide means is prevented. It is possible to prevent the deterioration of optical characteristics.
  • the lighting device of the present invention by mounting the lighting device of the present invention on an electronic device such as a lighting device, a device capable of irradiating a necessary portion with a necessary light amount can be realized.
  • the first light source 41 and the second light source 42 are LEDs.
  • the present invention is not limited to this, and any light source capable of coupling light to the light guide means, such as an organic EL, is realized. Is possible.
  • the double-sided lighting device has been described.
  • the present invention is not limited to this, and is effective in all lighting devices using a light guide plate.
  • the lighting device of the present invention can be used for lighting devices and electronic devices such as backlights of liquid crystal display elements.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

L'invention concerne un dispositif d'éclairage comportant une source lumineuse, des moyens de guidage de lumière pour guider la lumière provenant de la source lumineuse, et une base à laquelle la source lumineuse est fixée. Ce dispositif d'éclairage est caractérisé en ce qu'il comporte un espace permettant de recevoir une tige de positionnement ou une unité de réception de tige équipant la base, et une unité de réception de tige ou une tige de positionnement équipant les moyens de guidage de lumière, destinés à entrer en contact mutuel. L'espace est en outre conçu pour réduire l'expansion thermique entre la tige de positionnement et la partie de réception de tige. L'invention concerne un dispositif d'éclairage qui permet de réduire l'effet d'expansion d'éléments induit par la chaleur, et d'éviter un cintrage de la plaque de guidage de lumière.
PCT/JP2012/052645 2011-02-04 2012-02-06 Dispositif d'éclairage et instrument électronique utilisant celui-ci WO2012105713A1 (fr)

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JP2011022608A JP5059202B2 (ja) 2011-02-04 2011-02-04 照明装置、及びこれを用いた電子機器
JP2011-022608 2011-02-04

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WO2012105713A1 true WO2012105713A1 (fr) 2012-08-09

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WO2014030504A1 (fr) * 2012-08-24 2014-02-27 シャープ株式会社 Module d'éclairage et dispositif d'éclairage pourvu de celui-ci
WO2014030502A1 (fr) * 2012-08-23 2014-02-27 シャープ株式会社 Module d'éclairage et dispositif d'éclairage équipé de celui-ci
CN115280063A (zh) * 2020-01-10 2022-11-01 豪倍公司 具有包含子表面光学特征的侧光式光面板的灯具

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WO2014038116A1 (fr) * 2012-09-05 2014-03-13 パナソニック株式会社 Dispositif d'éclairage
JP6252887B2 (ja) 2013-04-17 2017-12-27 パナソニックＩｐマネジメント株式会社 照明装置
JP6032555B2 (ja) 2013-04-17 2016-11-30 パナソニックＩｐマネジメント株式会社 照明装置
JP2015069901A (ja) * 2013-09-30 2015-04-13 パナソニック株式会社 照明器具
JP6277484B2 (ja) * 2014-01-30 2018-02-14 パナソニックＩｐマネジメント株式会社 照明器具
JP7333578B2 (ja) * 2019-04-26 2023-08-25 オーデリック株式会社 面状照明装置
WO2021199653A1 (fr) * 2020-04-03 2021-10-07 株式会社ジャパンディスプレイ Dispositif d'éclairage
CN114647141A (zh) * 2020-12-21 2022-06-21 深圳光峰科技股份有限公司 光机光源固定结构和投影机

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