WO2012001843A1 - 照明装置 - Google Patents

照明装置 Download PDF

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Publication number
WO2012001843A1
WO2012001843A1 PCT/JP2011/001466 JP2011001466W WO2012001843A1 WO 2012001843 A1 WO2012001843 A1 WO 2012001843A1 JP 2011001466 W JP2011001466 W JP 2011001466W WO 2012001843 A1 WO2012001843 A1 WO 2012001843A1
Authority
WO
WIPO (PCT)
Prior art keywords
light guide
light
lighting device
guide piece
unit
Prior art date
Application number
PCT/JP2011/001466
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
光秀 坂本
中嶋　博
英介 羽田野
Original Assignee
株式会社エス・ケー・ジー
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 株式会社エス・ケー・ジー filed Critical 株式会社エス・ケー・ジー
Publication of WO2012001843A1 publication Critical patent/WO2012001843A1/ja

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Classifications

    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/03—Lighting devices intended for fixed installation of surface-mounted type
    • F21S8/033—Lighting devices intended for fixed installation of surface-mounted type the surface being a wall or like vertical structure, e.g. building facade
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/03—Lighting devices intended for fixed installation of surface-mounted type
    • F21S8/033—Lighting devices intended for fixed installation of surface-mounted type the surface being a wall or like vertical structure, e.g. building facade
    • F21S8/036—Lighting devices intended for fixed installation of surface-mounted type the surface being a wall or like vertical structure, e.g. building facade by means of a rigid support, e.g. bracket or arm
    • 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
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
    • 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
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened surfaces

Definitions

  • the present invention relates to an illuminating device in which a wide variety of light guide pieces are three-dimensionally arranged.
  • the other surface side of the LED substrate on which the LED chip is mounted on the metal substrate via the insulating adhesive layer is directly or indirectly brought into contact with the light source mounting portion of the holder.
  • a bulb-type LED lamp that maintains heat dissipation even when a high-power LED substrate is used (see, for example, Patent Document 2).
  • the present invention enables the light emitted from the light-emitting portion to be bright or dark when the light-emitting portion having a long shape in one direction is viewed from any direction in the circumferential direction.
  • An object of the present invention is to provide a lighting device that can suppress the difference.
  • a lighting device includes a power source unit that converts externally supplied power into predetermined driving power, a light source unit that is connected to the power source unit and emits light by the driving power.
  • a light guide portion integrally formed with a light guide piece for guiding light of the light source portion from the incident surface to the exit surface, and a housing portion that is arranged in a pair and accommodates the light source portion.
  • the illumination device suppresses the difference in brightness of light derived from the light emitting portion, even when the light emitting portion having a long shape in one direction is viewed from any direction in the circumferential direction. be able to.
  • FIG. 1 It is a perspective view which shows the state which has installed the illuminating device which concerns on the 1st Embodiment of this invention in a stand, and is used as a gatepost lamp. It is a perspective view which decomposes
  • the illuminating device which concerns on the 1st Embodiment of this invention it is a perspective view which shows the light guide part in which the several plate-shaped light guide piece was integrally formed in the cross shape, and the housing
  • FIG. 6A is a perspective view showing two light guide portions with tip surfaces facing the entrance surface facing each other and a housing portion holding the two light guide portions
  • FIG. The perspective view which shows the two light guide parts which the front end surfaces which do not face each other, and the housing
  • (c) is the branched front end surface which opposes an entrance plane facing each other
  • (d) is a perspective view which shows one light guide part and the housing
  • FIG. 2 It is a perspective view which shows the light guide piece of the light guide part of the illuminating device which concerns on the 1st Embodiment of this invention, (a) is the concave surface or convex pattern which derives
  • FIG. 1 It is a perspective view which shows the light guide part and housing
  • (a) is the light guide piece of the light guide part in which the rectangular hole was formed, and this guide
  • (b) is a perspective view which shows the light guide piece of the light guide part in which the triangular hole was formed, and the housing
  • C) is a perspective view showing a light guide piece of a light guide part in which an elliptical hole is formed and a casing part holding the light guide part. It is a perspective view which decomposes
  • the illuminating device of this invention is not limited to the following description, In the range which does not deviate from the summary of this invention, it can change suitably.
  • the illumination device 1 according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 4.
  • a lighting device 2 according to a second embodiment of the present invention will be described with reference to FIGS.
  • an illumination device 4 according to a third embodiment of the present invention will be described with reference to FIG.
  • or 3rd embodiment of this invention is demonstrated.
  • the configuration and main functions and effects of the lighting devices 1 to 4 according to the first to third embodiments of the present invention will be described for each claim.
  • the illuminating device 1 of 1st Embodiment is comprised from the power supply part 10, the light source part 20, the light guide part 30, and the housing
  • Such an illuminating device 1 is installed, for example, on a table M on which a nameplate is hung, as shown in FIG.
  • each structure of the illuminating device 1 is demonstrated in order.
  • the power supply unit 10 constituting the lighting device 1 of the first embodiment converts electric power supplied from the outside into predetermined driving power.
  • a power supply unit 10 includes, for example, a power supply unit 11 and wiring 12 as shown in FIG.
  • the power supply unit 11 of the power supply unit 10 steps down the power supplied from the outside via the wiring 12 from 100 V to, for example, 24 V in accordance with the rating of the light source 21 of the light source unit 20 described later, and the AC power after stepping down. Is rectified to direct current, pulse modulation after rectification, noise removal, and the like are performed, and driving power is supplied to the light source 21 of the light source unit 20.
  • a power supply unit 11 includes, for example, a transformer, a rectifier, and a capacitor.
  • the power supply unit 11 when, for example, a fluorescent tube, a cold cathode tube, or a neon tube is used as the light source 21 of the light source unit 20, the power supply unit 11 does not convert AC power supplied from the outside into DC. Make the configuration.
  • the power supply unit 11 is housed in, for example, a power supply unit housing recess 41 ⁇ / b> A provided in a housing 41 of the housing portion 40 described later.
  • the power supply unit 11 may be arranged outside the housing 41.
  • the wiring 12 has one end of the wiring 12 connected to the power supply unit 11, and the other end of the wiring 12 is connected to a plug, a generator, or a storage battery (not shown) that receives power from the outside by being plugged into an outlet. A terminal (not shown) that receives power supply is connected.
  • the light source unit 20 included in the lighting device 1 of the first embodiment is connected to the power supply unit 10 and emits light by driving power supplied from the power supply unit 10.
  • a light source unit 20 includes a light source 21 and a substrate 22 as shown in FIG.
  • the light source 21 of the light source unit 20 makes light incident on each light guide piece of the light guide unit 30 described later.
  • Such a light source 21 includes, for example, a light emitting diode (LED: Light : Emitting Diode) that emits white light.
  • the light source 21 is not limited to a white LED.
  • the LED 21 is a white, red, orange, yellow, green, blue, indigo, or purple color, or a combination of these colors. You may comprise. Moreover, you may comprise the light source 21 by LED which emits the light of an ultraviolet region, for example. Similarly, the light source 21 may be composed of, for example, an organic light emitting diode, a fluorescent tube, a cold cathode tube, or a neon tube.
  • the substrate 22 of the light source unit 20 is a member for mounting the light sources 21 in a predetermined arrangement.
  • a disk-shaped metal plate using aluminum having a light and constant strength is used.
  • the substrate 22 may be a metal plate using copper excellent in heat dissipation or a glass epoxy substrate excellent in workability.
  • 10 LEDs are arranged in a cross shape on the substrate 22 along the incident surface 30 ⁇ / b> E of each light guide piece formed in a cross shape of the light guide portion 30. ing.
  • substrate 22 is accommodated in the board
  • the light guide 30 that constitutes the lighting device 1 of the first embodiment is integrally formed with a light guide piece that guides the light of the light source unit 20 from the incident surface to the output surface.
  • a light guide piece that guides the light of the light source unit 20 from the incident surface to the output surface.
  • each light guide section 30 is integrally formed in a cross shape, for example, by a light guide piece 30A, a light guide piece 30B, a light guide piece 30C, and a light guide piece 30D each having a plate shape.
  • each light guide piece is made of, for example, a transparent acrylic resin.
  • Each light guide piece is not limited to a transparent acrylic resin, and a colored acrylic resin may be used.
  • each light guide piece may be a resin plate to which a fine particle-shaped diffusion member that emits diffused light when irradiated with light in the visible range, for example.
  • a resin plate coated or added with a fluorescent agent that emits fluorescence when irradiated with light in the ultraviolet region or visible region may be used.
  • an incident surface 30E on which light of the light source 21 of the light source unit 20 is incident is provided at one end of each light guide piece. .
  • the front end surface 30F is provided in the other end which opposes the entrance plane 30E of each light guide piece.
  • a hole 30I having a predetermined shape is opened between the incident surface 30E and the front end surface 30F of each light guide piece of the light guide pieces 30A to 30D.
  • a main surface 30G is provided.
  • the thickness portion of each light guide piece corresponds to the side surface 30H.
  • Such main surface 30G and side surface 30H correspond to an emission surface from which light from light source 21 is emitted.
  • the front end surface 30F also corresponds to an emission surface from which light from the light source 21 is emitted.
  • a concave connection notch 30J that is connected to a holding member 42 of the casing 40 described later is provided on the side surface 30H in the vicinity of the incident surface 30E of each light guide piece.
  • each light guide piece has a silicone coating agent or glass (not shown) having functions such as waterproof, antifouling, and dustproof, respectively.
  • a coating agent may be applied or a transparent resin (not shown) having functions such as waterproofing, antifouling, and dustproofing may be coated.
  • the light of the light source 21 incident from the incident surface 30E of each light guide piece is uniformly diffused inside each light guide piece. After being done, it is derived mainly from the main surface 30G and the side surface 30H. Therefore, the light derived from each light guide piece of the light guide unit 30 does not feel dazzling for the viewer. Specifically, a part of the light of the light source 21 incident from the incident surface 30E of each light guide piece can be reflected at a wide angle by the hole inner short surface 30I ′ of the hole 30I.
  • the light of the light source 21 incident from the incident surface 30E of each light guide piece can be subjected to multiple reflection in an elongated space formed between the side surface 30H and the hole inner long surface 30I '' of the hole 30I. Further, the light of the light source 21 incident on the incident surface 30E of each light guide piece is irradiated at an oblique incidence to the tip surface 30F by being multiple-reflected inside each light guide piece. Therefore, most of the light irradiated to the front end surface 30F of each light guide piece is reflected to the incident surface 30E side, and can be multiple-reflected inside each light guide piece.
  • the light guide pieces of the light guide unit 30 are integrally formed in a cross shape, for example, so that the light that has been multiple-reflected inside the light guide piece 30 ⁇ / b> A.
  • a part of the light is incident on the light guide piece 30B adjacent to the light guide piece 30A, for example, and further led to multiple reflections inside the light guide piece 30B. Therefore, a part of the light of the light source 21 incident from the incident surface 30E of each light guide piece can be derived after being further reflected by another light guide piece.
  • the light guide pieces of the light guide unit 30 are integrally formed in a cross shape, for example, light derived from the main surface 30G of the light guide piece 30A can be guided adjacent to the light guide piece 30A.
  • the light piece 30B can be derived without being blocked.
  • each light guide piece of the light guide unit 30 is transparent, for example, the main surface 30 of the light guide piece 30B adjacent to the main surface 30G of the light guide piece 30A can be visually recognized. That is, even when the light guide unit 30 is viewed from any direction in the circumferential direction of the lighting device 1, it is possible to suppress a difference in brightness of light derived from each light guide piece.
  • the light guide unit 30 shown in FIG. 3A is the same as the light guide unit 30 shown in FIG. 2, and the light guide unit 30 shown in FIG. Each light guide section shown in FIGS. 3B to 3D will be described.
  • the light guide unit 30 shown in FIG. 3B is provided so that the front end surfaces 30F formed in a cross shape of the two light guide units 30 facing each other do not face each other.
  • the light guide 30 shown in FIG. 3B in addition to the main surface 30G and the side surface 30H of each light guide piece formed in each of the two light guide parts 30, from the front end face 30F of each light guide piece. Can also induce light.
  • the light guide unit 31 illustrated in FIG. 3C has the same arrangement as the light guide unit 30 illustrated in FIG. 3B, but is illustrated in FIG. 3B.
  • the front end face 31 ⁇ / b> F of each light guide piece formed on each of the two light guides 31 is branched.
  • the light guide 31 shown in FIG. 3C can obtain the same effects as those of the light guide 30 shown in FIG.
  • the shape of the branched front end surface 31F of each light guide piece can be made into a special shape.
  • the shape of the branched tip surface 31F of each light guide piece is, for example, a curved surface curved outward or inward, a trapezoidal trapezoidal shape or a truncated cone shape, or a cylinder with a predetermined depth. It can be made into the shape which provided the recessed part which consists of a shape or a cone shape. Therefore, in the light guide unit 31 shown in FIG. 3C, the light emitted from the tip surface 31F of each light guide piece is emitted by forming the branched tip surface 31F of each light guide piece into a special shape.
  • the direction can be controlled to a predetermined angle, and a part of the light irregularly reflected by the tip surface 31F is reflected toward the incident surface, so that it is easy to make multiple reflections within each light guide piece. Further, it is possible to obtain a lens effect such that the light derived from the distal end surface 31F of each light guide piece is substantially condensed light or substantially divergent light.
  • the light guide unit 32 shown in FIG. 3D has the same outer shape as the light guide unit 30, and only the lateral width is twice that of the light guide unit 30.
  • incident surfaces (not shown) are formed on both sides of each light guide piece.
  • light sources 21 having different wavelengths such as purple and red are provided on the incident surfaces on both sides of each light guide piece.
  • the light having a gradation effect can be derived from the main surface 32G and the side surface 32H of each light guide piece.
  • the manufacturing cost of this light guide part 32 can be reduced, and the lead time concerning the assembly of the illuminating device 1 can be shortened.
  • the light guide unit 30 illustrated in FIG. 3B and the light guide unit 31 illustrated in FIG. 3C may be provided one by one.
  • the light guide piece 30A shown in FIG. 4A has the same configuration as the light guide piece 30A of the light guide part 30 shown in FIG.
  • a concave or convex pattern 30P that guides the light from the light source 21 of the light source unit 20 as diffused light is formed on the opposing main surface 30G of the light guide piece 30A ′ shown in FIG. Yes.
  • FIG. 4B only the light guide piece 30A ′ of the light guide is shown, but the same pattern 30P as the light guide piece 30A is formed on all other light guide pieces or a part of the light guide pieces.
  • the pattern 30P may be formed on one or more of the main surface 30G, the side surface 30H, and the front end surface 30F provided in the light guide piece 30A ′. Further, the pattern 30P is formed in a matrix at intervals of, for example, 1 mm to 6 mm with respect to the opposing main surface 30G of the light guide piece 30A ′ shown in FIG. Here, if the density of the pattern 30P formed on the main surface 30G of the light guide piece 30A ′ is sufficiently high, a plurality of diffused light generated in the pattern 30P is transmitted from the light guide piece 30A ′ as a substantially uniform surface light source. Derived.
  • the pattern 30P when the pattern 30P is formed so as not to face the same with respect to the opposing main surface 30G of the light guide piece 30A ′, the difference in brightness of the diffused light derived from the light guide piece 30A ′ is reduced.
  • the light intensity of the light source 21 of the light source unit 20 relatively decreases from the incident surface 30E of the light guide piece 30A ′ toward the distal end surface 30F.
  • the depth of the pattern 30P formed on the main surface 30G of the light guide piece 30A ′ is generated from the pattern 30P by gradually increasing the depth from the incident surface 30E to the tip surface 30F of the light guide piece 30A ′. It is good also as a structure which raises the intensity
  • a configuration may be adopted in which the intensity of diffused light derived from 'is averaged.
  • the housing part 40 which comprises the illuminating device 1 of 1st Embodiment is arrange
  • casing part 40 is comprised from the housing
  • the housing 41 of the housing portion 40 is made of, for example, aluminum and has a hemispherical shape.
  • the power supply unit 11 of the power supply unit 10 is housed in a rectangular power supply unit housing recess 41 ⁇ / b> A formed in the hemispherical opening of the housing 41.
  • the substrate 22 of the light source unit 20 is accommodated in a cylindrical substrate accommodating recess 41B formed in the hemispherical opening of the housing 41.
  • a screw (not shown) is passed through the screw hole 22A opened in the substrate 22. Then, it is screwed into a screw groove 41C formed in the substrate housing recess 41B.
  • the incident surface 30E of the light guide unit 30 is brought into contact with a contact surface 41D having a ring shape formed at the tip of the hemispherical opening of the housing 41.
  • a heat radiation member having an uneven shape (not shown) on the hemispherical outer peripheral surface 41F of the housing 41 the surface area of the outer peripheral surface 41F is increased, and the heat generated in the power supply unit 10 and the light source unit 20 is efficiently generated. It may be configured to dissipate heat.
  • a wiring hole 41G penetrating the housing 41 is provided, and the wiring 12 is connected to the power supply unit 11 accommodated in the power supply unit accommodation recess 41A via the wiring hole 41G.
  • the holding member 42 of the housing unit 40 detachably holds the light guide unit 30 on the housing 41 as shown in FIG.
  • a holding member 42 is made of aluminum, for example, and is formed in a semi-disc shape.
  • the pair of holding members 42 are engaged by inserting protrusions 42A formed at both ends of the holding member 42 into the coupling notches 30J of the light guide piece 30A and the light guide piece 30C.
  • the pair of holding members 42 are engaged by fitting the coupling notches 42B opened in the center of the holding members 42 into the coupling notches 30J of the light guide pieces 30B and 30D. .
  • the pair of holding members 42 respectively cover the bonding surfaces 41E provided on the outer periphery of the tip of the hemispherical opening portion of the housing 41 with the bonding surfaces 42C provided on the inner peripheral surface of the holding member 42. It is fixed with screws (not shown).
  • the joint portion of the holding member 42 is made of rubber or the like so that rainwater and dust do not enter from the gap generated in the joint portion. You may seal the gap which arises in a junction part by attaching packing etc. which consist.
  • the holding member 42 itself may be molded from rubber or the like.
  • the fixing member 43 of the housing portion 40 is a fixing member for installing the lighting device 1 on, for example, a table M on which a nameplate is hung, as shown in FIG.
  • a fixing member 43 is made of, for example, stainless steel, and is formed by refracting a bar-like member having a space inside into a U-shape.
  • a wiring hole 43 ⁇ / b> A for passing the wiring 12 of the power supply unit 10 is formed inside the fixing member 43.
  • planar joining surfaces 43B are formed at both ends of the fixing member 43 by cutting or the like, joined to the joining surface 41H of the housing 41, and fixed by screws or the like (not shown).
  • the light of the light source 21 entered from the entrance plane 30E of each light guide piece is each light guide like the light guide part 30 shown, for example in FIG. After being uniformly diffused inside the piece, it is mainly derived from the main surface 30G and the side surface 30H. Therefore, the light derived from each light guide piece of the light guide unit 30 does not feel dazzling for the viewer. Specifically, a part of the light of the light source 21 incident from the incident surface 30E of each light guide piece can be reflected at a wide angle by the hole inner short surface 30I ′ of the hole 30I.
  • each light guide piece of the light guide unit 30 is integrally formed, for example, in a cross shape, a part of the light that is multiply reflected inside the light guide piece 30A is adjacent to the light guide piece 30A, for example.
  • the light can be derived after being incident on the light guide piece 30B and further subjected to multiple reflection inside the light guide piece 30B.
  • each light guide piece is integrally formed, for example in cross shape like the light guide part 30 shown, for example in FIG.
  • the light derived from the main surface 30G can be derived without being blocked by the light guide piece 30B adjacent to the light guide piece 30A.
  • each light guide piece of the light guide section 30 is transparent, for example, the main surface 30 of the light guide piece 30B adjacent to the main surface 30G of the light guide piece 30A can be visually recognized. That is, even when the light guide unit 30 is viewed from any direction in the circumferential direction of the lighting device 1, it is possible to suppress a difference in brightness of light derived from each light guide piece.
  • the front end surfaces 30 ⁇ / b> F formed in a cross shape do not face each other. Is provided.
  • the arrangement angles of the main surface 30G and the side surface 30H of each light guide piece respectively formed in the two light guide portions 30 provided adjacent to the left and right are relatively different by 45 degrees.
  • the light distribution characteristics of the light derived from the two light guide units 30 can be averaged.
  • light can be led out from the front end surface 30F of each light guide piece.
  • the tip surfaces 31F of the respective light guide pieces are branched, for example, like the two light guide portions 31 illustrated in FIG.
  • the shape of the distal end surface 31F is, for example, a curved surface curved outward or inward, a trapezoidal trapezoidal shape or a truncated cone shape, or a concave portion formed of a columnar shape or a conical shape with a predetermined depth. Can be formed.
  • the light emission direction derived from the tip surface 31F of each light guide piece can be controlled to a predetermined angle, and Since a part of the light irregularly reflected by the front end surface 31F is reflected toward the incident surface, the light can be easily multi-reflected inside each light guide piece, and further from the front end surface 31F of each light guide piece.
  • a lens effect can be obtained in which the derived light is substantially condensed light or substantially divergent light.
  • incident surfaces are provided on both sides of each light guide piece, for example, like the light guide portion 32 shown in FIG.
  • the main surface 32G and the side surface 32H of each light guide piece are provided. From this, light having a gradation effect can be derived.
  • the manufacturing cost of the light guide part 32 can be reduced, and the lead time concerning the assembly of the illuminating device 1 can be shortened.
  • the light guide piece illustrated in FIG. 4B has a concave shape that guides the light of the light source 21 of the light source unit 20 incident from the incident surface as diffuse light.
  • a convex pattern 30P is formed. Therefore, in addition to the light reflected inside each light guide piece and led to the outside, the diffused light generated in the concave or convex pattern 30P formed on each light guide piece can be derived. Further, by providing concave or convex patterns 30P arranged in a matrix on the main surface 30G of each light guide piece, each light guide piece is obtained by a plurality of diffused light generated in each pattern of each light guide piece.
  • the main surface 30G can act as a substantially uniform surface light source. Further, the diffused light generated by the concave or convex pattern 30P formed on the main surface 30G of each light guide piece does not feel dazzling to the viewer, and is visually recognized as gentle light closer to the viewer. can do.
  • each light guide piece provided in the light guide unit 30 shown in FIG. is not limited to a form used simply as a gate lamp. For example, by placing the lighting device 1 in a restaurant or wedding ceremony, for a viewer who visually recognizes the lighting device 1, A certain production effect can be given.
  • the illuminating device 1 is provided with a light amount sensor, and the driving power supplied to the light source 21 of the light source unit 20 according to the external brightness detected by the light amount sensor.
  • control may be performed such that the driving power is relatively increased at night or in the rain, and the driving power is relatively decreased or the supply of driving power is stopped during the daytime.
  • the illumination device 2 and the illumination device 3 according to the second embodiment of the present invention pass one wiring 11 of the power supply unit 10 through the light guide unit that constitutes each illumination device, so that one power supply of the power supply unit 10 is provided.
  • the unit 11 is characterized in that driving power is supplied to each of the two light source units.
  • Other configurations according to the second embodiment are the same as the configurations described in the first embodiment. Therefore, in the second embodiment, a configuration different from the first embodiment will be mainly described.
  • the lighting device 2 and the lighting device 3 will be described in this order.
  • the light guide 50 constituting the illuminating device 2 is different from the light guide 30 constituting the illuminating device 1 of the first embodiment, as shown in FIG.
  • a wiring hole 50 ⁇ / b> K through which the wiring 11 of the power supply unit 10 passes is formed inside the light guide unit 50.
  • the light source 21 disposed on the substrate 22 of the light source unit 20 shown on the right side of FIG. 5 from the power supply unit 11 stored in the power unit storage recess 41A of the housing 41 shown on the right side of FIG.
  • Driving power is supplied through the wiring 12.
  • Driving power is supplied through the wiring 12 that passes through the wiring hole 22B and the wiring hole 50K formed at the center of the two light guide portions 50, respectively.
  • the housing unit 70 constituting the illuminating device 3 is installed, for example, on the outer wall N as shown in FIG.
  • Such an illuminating device 3 has a configuration in which the light guide unit 60 is disposed vertically, and only one casing 71 of the casing unit 70 is connected by the fixing member 74 and installed on the outer wall N or the like. Further, only the casing 71 of the casing unit 70 is connected to the fixing member 74. Therefore, the housing 73 provided to face the housing 71 is formed in a cylindrical shape and connected in a suspended state to the lower part of the lighting device 3.
  • casing part 70 is a member for fixation for installing the illuminating device 3, for example in the outer wall N, as shown in FIG.
  • a fixing member 74 is made of stainless steel, for example, and is formed by bending a rod-shaped member having a space inside.
  • a wiring hole (not shown) for passing the wiring 12 of the power supply unit 10 is formed inside the fixing member 74.
  • one end of the fixing member 74 is joined to the upper portion of the casing 71 and is fixed with a screw or the like (not shown).
  • the light guide unit 60 is detachably connected to the housing 71 and the housing 73 in which the light source unit 20 is housed by the holding member 72 having the same configuration as that of the first and second embodiments.
  • the Such a light guide unit 60 has rectangular holes formed in each light guide piece like the light guide unit 60 shown in FIG. Moreover, you may form a triangular-shaped hole in each light guide piece like the light guide part 61 shown in FIG.8 (b). Furthermore, an elliptical hole may be formed in each light guide piece like the light guide portion 61 shown in FIG.
  • the effect similar to the illuminating device 1 which concerns on 1st Embodiment mentioned above can be acquired.
  • the illuminating device 2 according to the second embodiment unlike the illuminating device 1 according to the first embodiment, only one power supply unit 11 needs to be provided. Can be reduced.
  • the light-guide part 60 can be arrange
  • the angle at which the illuminating device 3 is arranged can be set more freely according to the environment in which the illuminating device 3 is installed and the user's preference.
  • a plurality of lighting devices 3 can be provided on the outer wall at regular intervals and used as a guide light.
  • the illumination device 4 includes three or more light guides, and a lens 42D is formed on the holding member 42 corresponding to a part of the light guides. It has the feature in being.
  • Other configurations according to the third embodiment are the same as the configurations described in the first and second embodiments. Therefore, in the third embodiment, a configuration different from the first and second embodiments will be mainly described.
  • the light guide portion 80 constituting the illuminating device 4 corresponds to a configuration in which the lateral width of the light guide portion 50 shown in FIG.
  • the light guide unit 81 included in the illumination device 4 has the same specifications as the light guide unit 80, but the connection notch 80 ⁇ / b> J for connection to the holding member 42 is not provided.
  • a connecting rod 82 made of, for example, stainless steel and having a cylindrical shape is inserted into the wiring hole 80K of the light guide 80 and the wiring hole 81K of the light guide 81. Therefore, the light guide 80 is directly held by the holding member 42, and the light guide 81 is held by the light guide 80 and the holding member 42 via the connecting rod 82.
  • the light source unit 90 eight light sources 21 are arranged in a cross shape on the substrate 92 of the light source unit 90, and a total of eight light sources 21 are arranged in two in the region between the cross shapes.
  • the light emitted from the light sources 21 arranged two by two on the substrate 92 in a cross shape is substantially parallel light by each lens 42 ⁇ / b> D formed on the holding member 42 corresponding to the position of each light source 21. And are incident on the incident surfaces 81E of the two light guide portions 81, respectively.
  • the illumination device 4 which concerns on 3rd Embodiment, the effect similar to each illuminating device which concerns on the 1st and 2nd embodiment mentioned above can be acquired.
  • the illumination device 4 according to the third embodiment unlike the illumination devices according to the first and second embodiments, for example, as shown in FIG. Four lenses are provided in total, and lenses 42 ⁇ / b> D are formed on the holding member 42 corresponding to the two light guide portions 81 at the center. Therefore, in the illuminating device 4 according to the third embodiment, the design can be further improved in accordance with the environment where the illuminating device 4 is installed and the user's preference.
  • ultrasonic processing heating processing, cutting processing, laser processing, molding processing, and silk printing processing can be used as a method for manufacturing the light guide section.
  • each manufacturing method will be described.
  • the ultrasonic processing the surface of the light guide piece is partially melted by using ultrasonic vibration of an ultrasonic processing horn brought into contact with the surface of the light guide piece of the light guide section. A concave pattern is formed.
  • the heat processing the surface of the light guide piece is partially melted by using the heat of the processing tool brought into contact with the surface of the light guide piece of the light guide section, thereby forming a concave pattern on the surface.
  • the surface of the light guide piece is partially scraped off by using a cutting tool that is rotated or biased while being in contact with the surface of the light guide piece of the light guide unit. Form a pattern.
  • the surface of the light guide piece is partially melted by using the heat of the laser light condensed on the surface of the light guide piece of the light guide unit, thereby forming a concave pattern on the surface.
  • a shape reflecting the outer shape of the light guide piece of the light guide part to be molded is formed inside the mold, and for example, the mold mounted on the injection molding machine is heated and softened. After the resin is injected, the resin is cooled to form a concave pattern, a convex pattern, or a concave and convex pattern on the surface of the light guide piece.
  • a plate having predetermined holes is brought into contact with the surface of the light guide piece of the light guide unit, and a curable resin is brought to the surface through the holes.
  • a convex pattern is formed on the surface.
  • a resin that is a base material of a light guide piece that performs the above-described ultrasonic processing, heating processing, cutting processing, or laser processing may be used in which a particulate diffusion member that emits diffused light is added.
  • a concave pattern may be formed on the surface of the light guide piece by ultrasonic processing, for example.
  • a convex pattern may be formed on the surface of the light guide piece by silk printing, for example.
  • the illumination devices 1 to 4 have been described as illumination devices that are used as, for example, gatepost lamps. Modifications can be made as appropriate without departing from the scope of the invention. Specifically, the lighting devices 1 to 4 may be used as, for example, a stand lamp that is used by being placed on a desk, a garden that is used by being installed in a garden, or the like.
  • the lighting device 1 to the lighting device 4 include a power source unit 10 that converts electric power supplied from outside into predetermined driving power, and a light source unit 20 or 90 that is connected to the power source unit 10 and emits light by driving power. And a light guide unit 30, 31, 32, 50, 60, 61, 62, 80, or 81 integrally formed with a light guide piece that guides the light of the light source unit 20 or the light source unit 90 from the incident surface to the output surface. And a housing part 40 or 70 that is disposed so as to form a pair and accommodates the light source part 20 or 90.
  • the illuminating device 1 to the illuminating device 4 of Claim 1 injects from the entrance plane of the light guide piece of the light guide part 30, 31, 32, 50, 60, 61, 62, 80, or 81. After the light from the light source 21 is uniformly diffused inside the light guide piece of the light guide section 30, 31, 32, 50, 60, 61, 62, 80, or 81, it is led out from the main surface and the side surface. . Therefore, the light derived from the light guides 30, 31, 32, 50, 60, 61, 62, 80, or 81 does not feel dazzling to the viewer.
  • the lighting device 1 to the lighting device 4 according to claim 2 are dependent on claim 1, and in the light guide unit 30, 31, 32, 50, 60, 61, 62, 80, or 81, one or more A plate-like light guide piece is integrally formed.
  • each light guide piece of the light guide unit 30 is integrally formed in a cross shape, for example, like the light guide unit 30 shown in FIG.
  • a part of the light that has been multiple-reflected inside the light guide piece 30A is incident on the light guide piece 30B adjacent to the light guide piece 30A and is further multiple-reflected inside the light guide piece 30B.
  • the light guide pieces of the light guide unit 30 are integrally formed, for example, in a cross shape, for example, light derived from the main surface 30G of the light guide piece 30A can be guided adjacent to the light guide piece 30A.
  • the light piece 30B can be led out without being blocked.
  • each light guide piece of the light guide section 30 is transparent, for example, the main surface 30 of the light guide piece 30B adjacent to the main surface 30G of the light guide piece 30A can be visually recognized. That is, even when the light guide unit 30 is viewed from any direction in the circumferential direction of the lighting device 1, it is possible to suppress a difference in brightness of light derived from each light guide piece.
  • the lighting device 1 to the lighting device 4 according to a third aspect are dependent on the second aspect, and are provided with two or more light guide portions excluding the light guide portions 32, 60, 61, or 62. It is said.
  • the illuminating device 1 to the illuminating device 4 of Claim 3 for example, two light guides provided adjacent to each other on the left and right, like the two light guides 30 shown in FIG.
  • the light distribution characteristics of the light derived from the two light guides 30 can be averaged by making the arrangement angle of 30 relatively different by 45 degrees.
  • the lighting device 1 to the lighting device 4 according to a fourth aspect are dependent on the third aspect, and the front end surfaces facing the incident surfaces of the two or more light guide portions 30, 31, 50, 80, or 81 are mutually connected. It is characterized by being provided so as to face each other or not to face each other.
  • the front end surfaces 30F formed in a cross shape face each other, for example, like the two light guide portions 30 shown in FIG.
  • light can be led out from the front end surface 30F of each light guide piece in addition to the main surface 30G and the side surface 30H of each light guide piece respectively formed on the two light guide portions 30.
  • the branched end surface 31F of each light guide piece shown in FIG. 3B is formed into a curved surface curved toward the outside or the inside, a trapezoidal trapezoidal shape or a truncated cone shape, or a predetermined depth.
  • the emission direction of the light derived from the front end surface 31F of each light guide piece can be controlled to a predetermined angle, or substantially condensed light or substantially divergent.
  • the illuminating device 1 to the illuminating device 4 according to claim 5 are dependent on claim 3 and are characterized in that two or more light guide portions are provided in combination in the same shape or different shapes.
  • the two light guide characteristics are combined to combine the two light guide characteristics.
  • the light distribution characteristics of the light derived from the light part can be averaged.
  • a lighting device 1 to a lighting device 4 according to a sixth aspect are dependent on the first aspect, and the light guide section 30, 31, 32, 50, 60, 61, 62, 80, or 81 has a predetermined shape. It is characterized by being formed.
  • the light of the light source 21 which injected from the entrance plane 30E of each light guide piece like the light guide part 30 shown, for example in FIG. After being uniformly diffused inside each light guide piece, it is led out mainly from the main surface 30G and the side surface 30H. For this reason, the light derived from each light guide piece of the light guide unit 30 does not feel dazzling to the viewer. Specifically, a part of the light of the light source 21 incident from the incident surface 30E of each light guide piece can be reflected at a wide angle by the hole inner short surface 30I ′ of the hole 30I. Further, the light of the light source 21 incident from the incident surface 30E of each light guide piece can be subjected to multiple reflection in an elongated space formed between the side surface 30H and the hole inner long surface 30I '' of the hole 30I.
  • the lighting device 1 to the lighting device 4 according to claim 7 are dependent on claim 6 and are characterized in that the holes are formed in a rectangular shape, a polygonal shape, a circular shape, an elliptical shape, or a combination thereof.
  • the light from the light source 21 incident from the incident surface 30E of each light guide piece of the light guide unit 30 is used as the short hole inside the hole 30I.
  • the light from the light source 21 incident from the incident surface 30E of each light guide piece of the light guide unit 30 is used as the short hole inside the hole 30I.
  • the light from the light source 21 incident from the incident surface 30E of each light guide piece of the light guide unit 30 is used as the short hole inside the hole 30I.
  • the light from the light source 21 incident from the incident surface 30E of each light guide piece of the light guide unit 30 is used as the short hole inside the hole 30I.
  • An illuminating device 1 to an illuminating device 4 according to an eighth aspect are dependent on the first aspect, and are provided on one or more of the emission surfaces of the light guide portions 30, 31, 32, 50, 60, 61, 62, 80, or 81.
  • a concave or convex pattern is formed to guide the light from the light source 21 of the light source unit 20 or 90 as diffused light.
  • the light is reflected inside each light guide piece of the light guide section 30, 31, 32, 50, 60, 61, 62, 80, or 81.
  • the diffused light generated in the concave or convex pattern formed on each light guide piece can be derived.
  • each light guide piece is obtained by a plurality of diffused light generated in each pattern of each light guide piece.
  • the main surface 30G can act as a substantially uniform surface light source.
  • the diffused light generated by the concave or convex pattern 30P formed on the main surface 30G of each light guide piece does not feel dazzling to the viewer, and is visually recognized as gentle light closer to the viewer. can do.
  • the lighting device 1 to the lighting device 4 according to a ninth aspect are dependent on the eighth aspect, wherein the concave pattern or the convex pattern is formed so as not to face each other or to be the same face-to-face with respect to the opposite emission surface. It is characterized by being.
  • or the illuminating device 4 of Claim 9 compared with the case where it is formed in the same facing, for example, when formed facing non-identical with respect to the output surface which opposes
  • the total number of patterns visible from the light guide pieces 30, 31, 32, 50, 60, 61, 62, 80, or 81 is increased, so that the difference in brightness of the diffused light is reduced.
  • the lighting device 1 to the lighting device 4 according to a tenth aspect are dependent on the eighth aspect, and the concave pattern is formed so as to be deeper each time the distance from the incident surface is greater than the opposite emission surface. It is said.
  • the illuminating device 1 to the illuminating device 4 according to the tenth aspect, even if the light intensity of the light source 21 of the light source unit 20 or 90 is relatively lowered with respect to the front end surface from the incident surface of the light guide plate.
  • the intensity of diffused light generated in the concave pattern can be averaged.
  • the lighting device 1 to the lighting device 4 according to an eleventh aspect are dependent on the eighth aspect, and the convex pattern is formed so as to rise higher each time the convex pattern faces away from the incident surface. It is characterized by.
  • the illuminating device 1 to the illuminating device 4 of the eleventh aspect even if the light intensity of the light source 21 of the light source unit 20 or 90 is relatively lowered from the incident surface of the light guide plate to the front end surface.
  • the intensity of the diffused light generated in the convex pattern can be averaged.
  • the illuminating device 1 to the illuminating device 4 according to a twelfth aspect are dependent on the eighth aspect, and the concave pattern is one of ultrasonic processing, heating processing, cutting processing, laser processing, and molding processing, or It is characterized by being formed by combining these processes.
  • the concave pattern is accurate with respect to one or more exit surfaces of the light guide piece. It can be formed well and stably.
  • the lighting device 1 to the lighting device 4 according to claim 13 are dependent on claim 8, and the convex pattern is formed by any one of molding processing and silk printing processing, or a combination of these processing. It is characterized by being.
  • a convex pattern is made with respect to one or more exit surfaces of the light guide pieces. It can be formed stably with high accuracy.
  • the lighting device 1 to the lighting device 4 according to a fourteenth aspect are dependent on the first aspect, and the light guide portions 30, 31, 32, 50, and the like are provided by the holding member 42 or 72 provided in the housing portion 40 or 70. 60, 61, 62, 80, or 81 is detachably held by the casing 40 or 70.
  • the light guide 30, 31, 32, 50, 60, 61, 62, 80, or 81 is set according to a user's request or maintenance. It can be easily detached and replaced.
  • the lighting device 1 to the lighting device 4 according to the fifteenth aspect are dependent on the fourteenth aspect, and the holding member 42 or 72 is the light guide portion 30, 31, 32, 50, 60, 61, 62, 80, or 81. And the housing part 40 or 70 is hermetically sealed.
  • the light guide unit 30, 31, 32, 50, 60, 61, 62, 80, or 81 is mounted using the holding member 42 or 72.
  • the holding member 42 or 72 When held on the body part 40 or 70, it is possible to prevent rainwater and dust from entering through a gap generated at the joint part.
  • the illumination device 4 according to claim 16 is dependent on claim 14 and is characterized in that a lens 42 ⁇ / b> D into which light is incident from the light source unit 90 is formed on the holding member 42.
  • the light emitted from the light sources 21 arranged two by two in a cross shape on the substrate 92 is the position of each light source 21.
  • the respective lenses 42 ⁇ / b> D formed on the holding member 42 so as to be substantially parallel light can be incident on the incident surfaces 81 ⁇ / b> E of the two light guide portions 81.
  • the lighting device 1 to the lighting device 4 according to claim 17 are dependent on claim 1 and dissipate heat generated in the light source unit 20 or 90 by the heat dissipation member provided in the housing unit 40 or 70. It is a feature.
  • the illuminating device 1 to the illuminating device 4 according to claim 17 by efficiently dissipating the heat generated in the light source unit 20 or 90, the light amount of the light source unit 20 decreases due to thermal saturation. This can be prevented.
  • the lighting device 1 to the lighting device 4 according to claim 18 are dependent on claim 1 and fix the housing part to a predetermined structure by the fixing member 43 or 74 provided in the housing part 40 or 70. It is characterized by that.
  • the angle at which the lighting device 3 is arranged can be set more freely according to, for example, the environment in which the lighting device 3 is installed and the user's preference.
  • a plurality of lighting devices 3 can be provided on the outer wall at regular intervals and used as a guide light.
  • the lighting device 1 to the lighting device 4 according to claim 19 are dependent on claim 1, and the light source of the light source unit 20 or 90 is the light guide unit 30, 31, 32, 50, 60, 61, 62, 80, or It is characterized by being provided radially along the 81 incident surface.
  • the illumination device 1 to the illumination device 4 is optimal in accordance with the shape of the incident surface of the light guide 30, 31, 32, 50, 60, 61, 62, 80, or 81.
  • the illumination device 1 to the illumination device 4 is optimal in accordance with the shape of the incident surface of the light guide 30, 31, 32, 50, 60, 61, 62, 80, or 81.
  • Lighting device 10 Power supply unit 11 Power supply unit 12 Wiring 20, 90 Light source unit 21 Light source 22, 92 Substrate 22A, 92A Screw hole 22B, 92B Wiring hole 30, 31, 32, 50, 60, 61, 62, 80, 81 Light guide portions 30A, 30B, 30C, 30D, 30A ', 31A, 31B, 31C, 31D, 32A, 32B, 50A, 50B, 50C, 50D, 60A, 60B, 60C, 60D, 61A, 61B , 61C, 61D, 62A, 62B, 62C, 62D, 80A, 80B, 80C, 80D, 81A, 81B, 81C, 81D Light guide pieces 30E, 50E, 60E, 80E, 81E Incident surfaces 30F, 31F, 50F, 80F, 81F Tip surfaces 30G, 31G, 32G, 50G, 60G, 80G, 81G Main surfaces 30H, 31

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Architecture (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Planar Illumination Modules (AREA)
PCT/JP2011/001466 2010-06-28 2011-03-14 照明装置 WO2012001843A1 (ja)

Applications Claiming Priority (2)

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JP2010-145950 2010-06-28
JP2010145950A JP2012009371A (ja) 2010-06-28 2010-06-28 照明装置

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CN106195784A (zh) * 2016-08-16 2016-12-07 苏州新逸喆电子科技有限公司 一种插杆式led工作灯

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JP6745469B2 (ja) * 2014-03-13 2020-08-26 パナソニックＩｐマネジメント株式会社 郵便受け

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JPH03116050U (zh) * 1990-03-12 1991-12-02
JP2001281457A (ja) * 2000-03-30 2001-10-10 Stanley Electric Co Ltd 導光棒
JP2003346506A (ja) * 2002-05-30 2003-12-05 Tokyo Line Kk 導光照明体
WO2004055427A1 (ja) * 2002-12-13 2004-07-01 Sanken Electric Co., Ltd. 半導体発光装置及びその製法並びに線状光源
JP2008288183A (ja) * 2007-04-18 2008-11-27 Ksk:Kk 照明器具
JP2009266678A (ja) * 2008-04-25 2009-11-12 Harison Toshiba Lighting Corp Ｌｅｄ光源を備えた発光装置および照明装置
JP2010020920A (ja) * 2008-07-08 2010-01-28 Sharp Corp 線状光源装置および画像読取装置

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JPH03116050U (zh) * 1990-03-12 1991-12-02
JP2001281457A (ja) * 2000-03-30 2001-10-10 Stanley Electric Co Ltd 導光棒
JP2003346506A (ja) * 2002-05-30 2003-12-05 Tokyo Line Kk 導光照明体
WO2004055427A1 (ja) * 2002-12-13 2004-07-01 Sanken Electric Co., Ltd. 半導体発光装置及びその製法並びに線状光源
JP2008288183A (ja) * 2007-04-18 2008-11-27 Ksk:Kk 照明器具
JP2009266678A (ja) * 2008-04-25 2009-11-12 Harison Toshiba Lighting Corp Ｌｅｄ光源を備えた発光装置および照明装置
JP2010020920A (ja) * 2008-07-08 2010-01-28 Sharp Corp 線状光源装置および画像読取装置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106195784A (zh) * 2016-08-16 2016-12-07 苏州新逸喆电子科技有限公司 一种插杆式led工作灯

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