JP2019012617A - Lighting device - Google Patents

Abstract

To provide a lighting device that can reduce glare.SOLUTION: A lighting device 10 includes: a lighting fixture body 90; a light source 70 disposed inside the lighting fixture body 90; a lens 60 for controlling distribution of light from the light source 70; and a light absorption member 80 surrounding an outer periphery of the lens 60 and absorbing light from the light source 70. An end 83 near to the light source 70 of the light absorption member 80 is separated from the light source 70 and the lens 60.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a lighting fixture including a lens.

  In a conventional lighting fixture, for example, a lighting fixture for a spotlight, a lamp body having an opening for emitting light, a light source attached to the inside of the lamp body, and a reflection for controlling the light distribution of the emitted light from the light source A member and a lens are provided (see, for example, Patent Document 1).

  In the luminaire disclosed in Patent Document 1, light that is not directly incident on the lens is reflected by the reflecting member, thereby indirectly entering the lens. Thereby, it is going to increase the emitted light quantity from a lighting fixture.

JP 2017-27899 A

  However, in the lighting fixture disclosed in Patent Document 1, light from the light source may be irregularly reflected by the reflecting member. The light irregularly reflected by the reflecting member causes glare and can deteriorate the appearance quality of the lighting fixture.

  Therefore, the present invention provides a lighting fixture that can reduce glare.

  In order to solve the above-described problems, an aspect of a lighting fixture according to the present invention includes a lamp body, a light source disposed inside the lamp body, a lens that controls light distribution from the light source, A light absorbing member that surrounds an outer periphery of the lens and absorbs light from the light source, and an end portion of the light absorbing member that is closer to the light source is spaced apart from the light source and the lens.

  ADVANTAGE OF THE INVENTION According to this invention, the lighting fixture which can reduce glare can be provided.

FIG. 1 is a perspective view showing an appearance of the lighting apparatus according to Embodiment 1. FIG. 2 is a partially exploded perspective view of the lighting apparatus according to Embodiment 1. FIG. FIG. 3 is a cross-sectional view of the lighting fixture according to the first embodiment. FIG. 4 is a partially enlarged cross-sectional view of the lighting apparatus according to Embodiment 1. FIG. 5 is a cross-sectional view of the lighting apparatus according to Embodiment 2. FIG. 6 is a cross-sectional view of the lighting apparatus according to Embodiment 3. FIG. 7 is a perspective view showing the shape of the light absorbing member according to the third embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Each of the embodiments described below shows a specific example of the present invention. Therefore, the numerical values, shapes, materials, components, component arrangement positions, connection forms, and the like shown in the following embodiments are merely examples, and are not intended to limit the present invention. Therefore, among the constituent elements in the following embodiments, constituent elements that are not described in the independent claims showing the highest concept of the present invention are described as optional constituent elements.

  Each figure is a schematic diagram and is not necessarily illustrated strictly. Moreover, in each figure, the same code | symbol is attached | subjected to the substantially same structure, The overlapping description is abbreviate | omitted or simplified.

(Embodiment 1)
[1-1. Constitution]
The structure of the lighting fixture which concerns on Embodiment 1 is demonstrated using drawing.

  FIG. 1 is a perspective view showing an appearance of a lighting fixture 10 according to the present embodiment. FIG. 2 is a partially exploded perspective view of the lighting fixture 10 according to the present embodiment. In FIG. 2, the baffle 40, the regulating member 50, the lens 60, the light source 70, the light absorbing member 80, and the holding member 100 of the lighting fixture 10 are shown in an exploded manner. FIG. 3 is a cross-sectional view of the lighting fixture 10 according to the present embodiment. FIG. 3 shows a cross section passing through the optical axis J of the light source 70 of the luminaire 10. FIG. 4 is a partially enlarged cross-sectional view of the lighting fixture 10 according to the present embodiment. FIG. 4 shows an enlarged view of the inside of the broken line frame IV shown in FIG.

  As shown in FIGS. 1 and 2, the luminaire 10 is a spotlight, and includes a baffle 40, a lens 60, a lamp body 90, an arm 97, and a power supply box 98. As shown in FIGS. 2 and 3, the lighting fixture 10 further includes a regulating member 50, a light source 70, a light absorbing member 80, and a holding member 100. In addition, as illustrated in FIG. 3, the lighting fixture 10 further includes a base 92. Hereinafter, each component of the lighting fixture 10 is demonstrated. In the present embodiment, the light emission side of the light source 70 is the front side, and the opposite side of the front side is the rear side.

[1-1-1. Lamp body]
The lamp body 90 is a cylindrical member that has a light source 70 disposed therein and emits light from the light source 70 to the outside. A side opening 91 is formed in the lamp body 90. The side opening 91 is a slit-like opening provided on the side surface of the lamp main body 90, and the arm 97 is disposed.

  As shown in FIG. 3, in addition to the light source 70, a baffle 40, a regulating member 50, a lens 60, a light absorbing member 80, a holding member 100, a base 92, and the like are disposed inside the lamp body 90.

  The lamp body 90 is made of a metal material such as aluminum, for example. In the present embodiment, the lamp body 90 is formed through, for example, an aluminum die casting process.

[1-1-2. Base]
As shown in FIG. 3, the base 92 is a member that is disposed inside the lamp body 90 and to which the light source 70 and the arm 97 are attached. The base 92 also functions as a heat sink that radiates heat generated from the light source 70. The base 92 is fixed to the lamp body 90 using screws (not shown).

  The base 92 has a light-shielding portion 95 that stands up around the light source 70 toward the front side. The light shielding unit 95 blocks light emitted from the light source 70 in a direction near to the optical axis J. Thereby, it can suppress that the light radiate | emitted from the light source 70 leaks out from the side opening part 91 arrange | positioned at the back side of the light source 70. FIG.

  The base 92 is made of a metal material such as aluminum, for example. In the present embodiment, the lamp body 90 is formed through, for example, an aluminum die casting process.

[1-1-3. light source]
As shown in FIGS. 2 and 3, the light source 70 is a light emitting unit that is disposed inside the lamp body 90 and generates light emitted from the lighting fixture 10. In the present embodiment, the light source 70 is a light emitting module having LEDs (Light Emitting Diodes), and is an LED light source that emits predetermined light radially. The light source 70 is configured to emit white light, for example. The light source 70 is configured by a COB (Chip On Board) type LED, and as shown in FIGS. 2 and 3, a substrate 72 and a plurality of LEDs 71 which are bare chips (LED chips) mounted on the substrate 72, The LED 71 is sealed, and a sealing member including a phosphor is provided. In the present embodiment, the sealing member collectively seals all the LEDs 71, but the configuration of the sealing member is not limited to this. It is good also as a structure which forms a sealing member in the shape of a plurality of lines along the arrangement direction of LED71 arranged in a line.

  The light source 70 is attached to the base 92 shown in FIG. 3 and emits light along the optical axis J. A method for attaching the light source 70 to the base 92 is not particularly limited. The light source 70 may be attached to the base 92 using another member, or may be bonded to the base 92 with an adhesive or the like.

  The substrate 72 is a mounting substrate for mounting the plurality of LEDs 71, and is, for example, a ceramic substrate, a resin substrate, an insulating-coated metal base substrate, or the like. In addition, the substrate 72 has a plate shape having a rectangular plane in a plan view, for example, and the bottom surface (that is, the rear surface) of the substrate 72 is attached to the base 92 and fixed. Although not shown, the substrate 72 has a pair of electrode terminals (a positive electrode terminal and a negative electrode terminal) for receiving DC power for causing the LED 71 (light source 70) to emit light from the outside via a lead wire or the like. Is formed.

[1-1-4. lens]
The lens 60 is a translucent optical element that controls light distribution from the light source 70. In the present embodiment, the lens 60 is a condenser lens that collects light incident on the lens 60. The lens 60 is a Fresnel lens in which the lens structure formed on the light emitting side is made Fresnel.

  As shown in FIGS. 2 and 3, the lens 60 is disposed in front of the light source 70. Specifically, the lens 60 is disposed on the light emission side of the light source 70 with a predetermined distance from the light source 70. Therefore, the lens 60 controls the light distribution of the light emitted from the light source 70 and incident on the lens 60. The lens 60 collimates the light emitted from the light source 70, for example. The optical axis of the lens 60 is preferably substantially coincident with the optical axis J of the light source 70.

  The lens 60 is formed in a predetermined shape so as to have a predetermined lens action. Moreover, the lens 60 is formed using a translucent material. Specifically, the lens 60 is molded into a predetermined shape by a mold or the like using a transparent resin material such as acrylic or polycarbonate, or a transparent material such as a glass material.

  Here, a specific shape of the lens 60 will be described with reference to FIG.

  As shown in FIG. 4, the lens 60 includes a first protrusion 61 formed on the rear side (that is, the light source 70 side) and a first protrusion 61 formed on the front side (that is, the side opposite to the light source 70 side). 2 protrusions 62.

  The first projecting portion 61 is formed in an annular shape on the outer peripheral portion of the lens 60 on the light incident side. Specifically, the first protrusion 61 protrudes toward the light source 70 so as to surround the light source 70. In the present embodiment, as shown in FIG. 4, the first projecting portion 61 has a substantially triangular shape in a sectional view passing through the optical axis J and tapers toward the light source 70 side.

  Further, by forming the first projecting portion 61 in the lens 60, a concave portion 65 is formed in the lens 60. The recess 65 is formed to be recessed in a direction away from the light source 70.

  The recess 65 constituted by the first protrusion 61 is formed at a position facing the light source 70. Specifically, the recess 65 is provided so as to cover the light emitting part of the light source 70. The light emitted from the light source 70 enters the recess 65. For this reason, the inner surface of the first protrusion 61 is a light incident surface 61 a that constitutes a part of the inner surface of the recess 65. On the other hand, the outer surface of the first projecting portion 61 is a light reflecting surface 61b that totally reflects light incident on the first projecting portion 61 from the light incident surface 61a. The distal end portion of the first projecting portion 61 is an end portion 64 near the light source 70 of the lens 60, and constitutes a connection portion between the light incident surface 61a and the light reflecting surface 61b.

  The second protrusion 62 controls the light distribution of light incident from the inner surface of the recess 65 constituted by the first protrusion 61. As shown in FIGS. 2 and 3, a plurality of second projecting portions 62 are formed concentrically on the light emitting side of the lens 60. The second protrusion 62 is formed at a position facing away from the recess 65. The plurality of second projecting portions 62 constitutes the annular zone of the Fresnel lens.

  As shown in FIG. 4, the third protruding portion 63 is a third light transmitting portion that protrudes on the opposite side to the first protruding portion 61. As shown in FIGS. 3 and 5, the third protrusion 63 is formed in an annular shape so as to surround the second protrusion 62. The third protruding portion 63 has a substantially triangular shape in cross-sectional view, and tapers as the distance from the light source 70 increases.

  As shown in FIG. 4, the outer surface of the third protrusion 63 is continuous with the outer surface of the first protrusion 61. That is, the outer surface of the third protrusion 63 is a light reflection that totally reflects the light incident on the third protrusion 63 from the inner surface of the recess 65 (that is, the light incident surface 61a), like the outer surface of the first protrusion 61. It is the surface 61b.

  An annular step 66 is formed on the inner surface of the third protrusion. The step part 66 is composed of a plurality of steps and has a step shape. Each step of the step portion 66 has a smaller inner diameter as it approaches the light source 70.

  The lens 60 thus configured is fixed to the light absorbing member 80 as shown in FIG. In the present embodiment, the lens 60 is fixed to the lamp main body 90 via a light absorbing member 80 fixed to the lamp main body 90.

  As shown in FIG. 2, the lens 60 is provided with three locked portions 67 at the periphery. In the present embodiment, the locked portion 67 is a portion having a concave shape provided on the light emitting surface of the lens 60. When the locked portion 67 of the lens 60 is locked to the claw portion 81 of the light absorbing member 80, the lens 60 is locked to the light absorbing member 80. Accordingly, the lens 60 is attached to the lamp body 90 via the light absorbing member 80.

[1-1-5. Light absorbing member]
The light absorbing member 80 is a member that surrounds the outer periphery of the lens 60 and absorbs light from the light source 70. The light absorbing member 80 has a cylindrical shape in which an opening through which the optical axis J passes is formed. At least the inner surface of the light absorbing member 80 is a light absorbing surface. Although the structure of a light absorption surface is not specifically limited, For example, the surface coated in black may be sufficient and the surface which consists of a black material may be sufficient. The light absorbing member 80 can be formed using a hard resin material such as polybutylene terephthalate (PBT).

  The light absorbing member 80 is held by the holding member 100 in the lamp body 90. More specifically, the light absorbing member 80 is restricted from moving toward the light source 70 along the optical axis J direction when the end 83 near the light source 70 contacts the holding member 100.

  Further, the position of the light absorbing member 80 is regulated by the regulating member 50 in the lamp body 90. More specifically, the light absorbing member 80 is restricted from moving toward the front side along the optical axis J direction by the front end 84 of the light absorbing member 80 coming into contact with the regulating member 50. That is, the position of the light absorbing member 80 in the optical axis J direction is regulated to a predetermined position by being sandwiched between the holding member 100 and the regulating member 50.

  The light absorbing member 80 holds the lens 60. In the present embodiment, the light absorbing member 80 holds the lens 60 at the end portion 84 on the side far from the light source 70. More specifically, as shown in FIG. 2, the light absorbing member 80 has three claw portions 81 provided at the end portion 84. As shown in FIG. 4, the light absorbing member 80 holds the lens 60 by locking each locked portion 67 of the lens 60 by each claw portion 81. Thus, when the light absorbing member 80 formed of a resin material or the like holds the lens 60, the holding structure of the lens 60 can be formed more easily than when the lamp body 90 formed of metal holds the lens 60. .

  The detailed configuration and operation of the light absorbing member 80 will be described in detail later.

[1-1-6. Holding member]
The holding member 100 is a member that is disposed inside the lamp body 90 and holds the light absorbing member 80. In the present embodiment, the holding member 100 is a spring attached to the inside of the lamp body 90. As shown in FIG. 2, the holding member 100 has a C-shape and includes three contact portions 101. As shown in FIG. 4, the holding member 100 is disposed in an annular holding groove 96 formed on the inner surface of the lamp body 90. The three abutting portions 101 protrude from the inner surface of the lamp body 90 toward the optical axis J and abut on the end portion 83 of the light absorbing member 80. As a result, the holding member 100 restricts the light absorbing member 80 from moving toward the light source 70. By using such a holding member 100, the light absorbing member 80 can be held in the lamp body 90 with a simplified configuration.

  The holding member 100 is formed using, for example, a linear metal member such as stainless steel.

[1-1-7. Restriction member]
The regulating member 50 is a member that is disposed inside the lamp body 90 and regulates the position of the light absorbing member 80. In the present embodiment, the restricting member 50 is a spring attached to the inside of the lamp body 90. As shown in FIG. 2, the restricting member 50 has a C-shape and includes three restricting portions 51. As shown in FIG. 4, the restricting member 50 is disposed in an annular restricting groove 94 formed on the inner surface of the lamp body 90. The three restricting portions 51 protrude from the inner surface of the lamp body 90 toward the optical axis J and abut on the end portion 84 of the light absorbing member 80. Thereby, the restricting member 50 restricts the light absorbing member 80 from moving toward the front side.

  The restricting member 50 is formed using, for example, a linear metal member such as stainless steel.

[1-1-8. Baffle]
The baffle 40 is a member that is disposed inside the cylindrical shade portion of the lamp body 90 and suppresses glare on the inner surface of the lamp body 90. As shown in FIGS. 3 and 4, the baffle 40 is disposed inside the lamp body 90 and on the front side of the lens 60. Specifically, the baffle 40 is disposed inside the shade portion of the lamp body 90. The baffle 40 has a cylindrical shape in which an opening through which the optical axis J passes is formed.

  As shown in FIGS. 1 and 3, the baffle 40 is disposed near the front end of the lamp body 90. The inner surface (surface on the optical axis J side) of the baffle 40 is a glare suppressing surface. Thereby, the glare in the inner surface near the front end of the lamp body 90 is suppressed.

  The inner surface of the baffle 40 is not particularly limited as long as it is a glare suppressing surface. The glare-suppressing surface can be realized, for example, by applying a matte treatment to the surface painted black. Further, the black glare-suppressing surface can be realized by applying a texturing process to a surface coated with black or a surface made of a black member. Further, in order to further suppress glare on the inner surface of the baffle 40, a stepped portion may be provided on the inner surface of the baffle 40 as shown in FIG.

  As shown in FIGS. 2 and 4, the baffle 40 has a protrusion 42 on the outer periphery. As shown in FIG. 4, the baffle 40 is held inside the lamp body 90 by the protrusions 42 being locked in locking grooves 93 formed on the inner surface of the lamp body 90.

  The baffle 40 can be formed using, for example, a resin material such as polycarbonate or PBT.

[1-1-9. arm]
The arm 97 shown in FIGS. 1 to 3 is a member having one end connected to the power supply box 98 and the other end connected to the base 92. The arm 97 is inserted into the lamp body 90 through the side opening 91 of the lamp body 90.

  Further, an insertion hole is formed in the arm 97 in the longitudinal direction, and a lead wire (not shown) for connecting the power supply box 98 and the light source 70 is disposed in the insertion hole.

  The arm 97 is formed of a metal material such as aluminum. In the present embodiment, the arm 97 is formed through, for example, an aluminum die casting process.

[1-1-10. Power box]
A power supply box 98 shown in FIGS. 1 and 2 is a housing in which a power supply circuit that supplies power to the light source 70 is built. In the present embodiment, the power supply circuit built in the power supply box 98 converts AC power supplied from the outside of the power supply box 98 into DC power, and the DC power is supplied to the LED 71 of the light source 70 via the lead wire. Supply.

  The outer wall portion of the power supply box 98 is formed from a metal material, a resin material, or the like. In the present embodiment, for example, the outer wall portion is made of aluminum.

[1-2. Detailed configuration and action of light absorbing member]
Next, the detailed configuration and operation of the light absorbing member 80 will be described.

  As described above, the light absorbing member 80 surrounds the outer periphery of the lens 60 and absorbs part of the light that is not directly incident on the lens 60 from the light source 70. Thereby, the glare resulting from the light which is not directly incident on the lens 60 among the light from the light source 70 can be reduced. Note that the amount of light emitted from the lighting apparatus 10 by the light absorbing member 80 can be reduced as compared with the case where a light reflecting member or the like is used instead of the light absorbing member 80. However, the amount of light that decreases is mainly due to the reduction of the glare component. That is, of the amount of light emitted from the luminaire 10, a component that is effective for use is not substantially reduced.

  The light absorbing member 80 can increase the temperature by absorbing light from the light source 70. Further, since the light source 70 itself generates heat and becomes high temperature, the heat generated in the light source 70 can be transmitted to the light absorbing member 80. Accordingly, heat is transmitted from the light absorbing member 80 to the members disposed around by the heat radiation. In particular, it is necessary to consider the influence of heat on the lens 60 disposed inside the light absorbing member 80. Since the lens 60 is made of acrylic or the like having a lower heat resistance than the PBT that forms the light absorbing member 80, the lens 60 may suffer from adverse effects such as deformation due to radiant heat from the light absorbing member 80.

  Therefore, in the present embodiment, the end 83 of the light absorbing member 80 near the light source 70 is separated from the light source 70 and the lens 60. As described above, the end 83 of the light absorbing member 80 near the light source 70 is separated from the light source 70, so that the amount of heat transferred from the light source 70 to the light absorbing member 80 can be reduced. In addition, since the end 83 of the light absorbing member 80 near the light source 70 that can reach the highest temperature is separated from the lens 60, the amount of heat transferred from the light absorbing member 80 to the lens 60 can be reduced.

  Further, in the present embodiment, the end portion 83 of the light absorbing member 80 near the light source 70 is disposed at a position farther from the light source 70 in the optical axis J direction of the light source 70 than the end portion 64 of the lens 60 near the light source 70. The Thereby, since the light absorption member 80 can be sufficiently separated from the light source 70, the amount of heat transmitted from the light source 70 to the light absorption member 80 can be reduced.

[1-3. Summary]
As described above, the lighting fixture 10 according to the present embodiment includes the lamp main body 90, the light source 70 disposed inside the lamp main body 90, the lens 60 that controls the light distribution from the light source 70, and the lens. A light absorbing member 80 that surrounds the outer periphery of the light source 60 and absorbs light from the light source 70. The end 83 of the light absorbing member 80 near the light source 70 is separated from the light source 70 and the lens 60.

  Thus, by providing the light absorbing member 80 surrounding the outer periphery of the lens 60, at least a part of the light that does not directly enter the lens 60 from the light source 70 is absorbed by the light absorbing member 80. For this reason, the glare resulting from the light not directly incident on the lens 60 can be reduced. Further, since the end 83 of the light absorbing member 80 near the light source 70 is separated from the light source 70, the amount of heat transmitted from the light source 70 to the light absorbing member 80 can be reduced. In addition, since the end 83 of the light absorbing member 80 near the light source 70 that can reach the highest temperature is separated from the lens 60, the amount of heat transferred from the light absorbing member 80 to the lens 60 can be reduced.

  In the lighting fixture 10, the end 83 of the light absorbing member 80 near the light source 70 is disposed farther from the light source 70 in the optical axis J direction of the light source 70 than the end 64 of the lens 60 near the light source 70. Also good.

  Thereby, since the light absorption member 80 can be sufficiently separated from the light source 70, the amount of heat transmitted from the light source 70 to the light absorption member 80 can be reduced.

  Further, the lighting fixture 10 may include a holding member 100 that is disposed inside the lamp body 90 and holds the light absorbing member 80.

  Thereby, the position in the lamp main body 90 of the light absorption member 80 can be controlled.

  In the lighting fixture 10, the holding member 100 may be a spring attached to the inside of the lamp body 90.

  Thereby, the light absorption member 80 can be held in the lamp body 90 with a simplified configuration.

  In the luminaire 10, the lens 60 may be held at the end portion 84 of the light absorbing member 80 on the side far from the light source 70.

  Thus, when the light absorbing member 80 formed of a resin material or the like holds the lens 60, the holding structure of the lens 60 can be formed more easily than when the lamp body 90 formed of metal holds the lens 60. .

(Embodiment 2)
A lighting apparatus according to Embodiment 2 will be described. The lighting fixture according to the present embodiment is different from the lighting fixture 10 according to the first embodiment mainly in the configuration of the holding member that holds the light absorbing member. Hereinafter, the lighting fixture according to the present embodiment will be described with reference to the drawings with a focus on differences from the lighting fixture 10 according to the first embodiment.

  FIG. 5 is a cross-sectional view of lighting fixture 110 according to the present embodiment. FIG. 5 shows a cross section passing through the optical axis J of the light source 70 of the luminaire 110.

  As shown in FIG. 5, the luminaire 110 according to the present embodiment is a spotlight. As with the lighting fixture 10 according to the first embodiment, the lighting fixture 110 includes the baffle 40, the regulating member 50, the lens 60, the lamp body 190, the base 192, the arm 97, the light source 70, and the light. An absorption member 80 and a holding member 196 are provided. Although not shown in FIG. 5, the lighting fixture 110 includes a power supply box 98 as in the lighting fixture 10 according to the first embodiment.

  The lighting fixture 110 according to the present embodiment is different from the lighting fixture 10 according to the first embodiment mainly in the configuration of the holding member 196, the lamp body 190, and the base 192. In the present embodiment, the holding member 196 that holds the light absorbing member 80 is a protruding portion formed inside the lamp body 190. As shown in FIG. 5, the holding member 196 formed inside the lamp main body 190 contacts the end 83 of the light absorbing member 80 near the light source 70. Thereby, the light absorbing member 80 is restricted from moving toward the light source 70. Further, the movement of the light absorbing member 80 toward the front side is regulated by the regulating member 50 in the same manner as the lighting fixture 10 according to the first embodiment. Thereby, the movement in the optical axis J direction of the light absorption member 80 is controlled. As described above, in this embodiment, since the holding member 196 is a protruding portion formed inside the lamp body 190, it is easier to assemble the lighting fixture 110 than when the lamp body 190 and a separate holding member are used. It becomes.

  In this embodiment, as shown in FIG. 5, the base 192 is integrated with the lamp body 190. This makes it easier to assemble the lighting fixture 110 than when using a separate body from the lamp body 190. Furthermore, since the thermal conductivity from the base 192 to the lamp body 190 is improved, not only the base 192 but also the lamp body 190 functions as a heat sink for the light source 70. Therefore, the heat dissipation performance of the lighting fixture 110 can be enhanced.

(Embodiment 3)
A lighting apparatus according to Embodiment 3 will be described. The luminaire according to the present embodiment is mainly different from the above embodiments in the configuration of the light absorbing member. Hereinafter, the lighting fixture according to the present embodiment will be described with reference to the drawings with a focus on differences from the lighting fixture according to the first embodiment.

  FIG. 6 is a cross-sectional view of lighting fixture 210 according to the present embodiment. FIG. 6 shows a cross section passing through the optical axis J of the light source 70 of the luminaire 210. FIG. 7 is a perspective view showing the shape of the light absorbing member 280 according to the present embodiment.

  As shown in FIG. 6, the lighting fixture 210 according to the present embodiment is a spotlight. Similar to the lighting fixture 10 according to the first embodiment, the lighting fixture 210 includes the baffle 40, the lens 60, the lamp body 290, the base 292, the arm 97, the light source 70, the light absorbing member 280, Holding member 289. Although not shown in FIG. 6, the lighting fixture 210 includes a power supply box 98 as in the lighting fixture 10 according to the first embodiment.

  The lamp main body 290 according to the present embodiment is different from the lamp main body 90 according to the first embodiment in that a groove in which the holding member and the regulating member are arranged is not formed. As will be described later, in the present embodiment, the light absorbing member 280 is held by the lamp body 290 via the base 292.

  As shown in FIGS. 6 and 7, the light absorbing member 280 according to the present embodiment has a light shielding wall extending toward the light source 70 from the end portion 64 of the lens 60 near the light source 70 in the optical axis J direction. 285. Thereby, it is possible to reduce leakage of light from the light source 70 from the side opening 291 arranged on the rear side of the light source 70. Therefore, the appearance quality of the lighting fixture 210 can be improved. The light absorbing member 280 according to the present embodiment can be applied when the influence of heat on the light shielding wall 285 or the like is suppressed even if the light shielding wall 285 extends to the vicinity of the light source 70. For example, the present invention can be applied to a lighting fixture that emits a relatively small amount of light from the light source 70 and generates a small amount of heat.

  The light shielding wall 285 of the light absorbing member 280 has a notch 286. As a result, as shown in FIG. 6, the lead wire 99 for supplying power from the power supply box 98 to the light source 70 can be guided from the outside of the light absorbing member 280 to the light source 70 via the notch 286. . Therefore, the lead wire 99 can be suppressed from being sandwiched between the light shielding wall 285 and the base 292.

  The light absorbing member 280 has a fixing portion 287 at the end of the light shielding wall 285 near the light source 70. The fixing portion 287 is a flat plate portion that is disposed substantially parallel to the light source 70 placement surface of the base 292. A through hole 288 is formed in the fixing portion 287. In the present embodiment, the holding member 289 is a screw that is screwed into a screw hole 293 formed in the base 292 through the through hole 288. By such a holding member 289, the light absorbing member 280 is stably held by the lamp body 290 via the base 292. This also eliminates the need for the regulating member used in each of the above embodiments.

(Variations, etc.)
As mentioned above, although the lighting fixture which concerns on this invention was demonstrated based on each embodiment, this invention is not limited to these embodiment.

  For example, in the above embodiment, the lens 60 is a Fresnel lens, but the lens 60 is not limited to this. The lens 60 may be, for example, a hybrid lens or a dome type lens.

  In Embodiment 3, the holding member is a screw. However, in Embodiment 3, the holding member and the regulating member similar to those in Embodiment 1 or Embodiment 2 may be used.

  Further, the light absorbing member may not cover the entire outer periphery of the lens 60. For example, the light absorbing member may be configured not to cover a part of the outer periphery of the lens 60. That is, the light absorbing member may have a C-shape when viewed in the optical axis J direction.

  Moreover, in each said embodiment, although the spotlight was shown as an example of a lighting fixture, it is not limited to this. For example, the lighting fixture may be a downlight or the like.

  Moreover, in the said embodiment, although COB type LED was used in the light source 70, you may use another light emitting element. For example, an SMD (Surface Mount Device) type LED may be used. Moreover, you may use other solid light emitting elements, such as an organic EL (Electro Luminescence) element, or other light sources other than a solid light emitting element.

  In addition, the present invention can be realized by various combinations conceived by those skilled in the art for each embodiment, or by arbitrarily combining the components and functions in each embodiment without departing from the spirit of the present invention. This form is also included in the present invention.

10, 110, 210 Lighting fixture 60 Lens 64, 83 End portion 70 Light source 80, 280 Light absorbing member 90, 190, 290 Lamp body 100, 196, 289 Holding member 285 Light shielding wall 286 Notch J Optical axis

Claims (8)

A lamp body,
A light source disposed inside the lamp body;
A lens for controlling the light distribution of the light from the light source;
A light absorbing member that surrounds the outer periphery of the lens and absorbs light from the light source;
An end of the light absorbing member near the light source is separated from the light source and the lens. The lighting apparatus according to claim 1, wherein the light absorbing member includes a light shielding wall extending toward the light source from an end portion of the lens near the light source in an optical axis direction of the light source. The lighting apparatus according to claim 2, wherein the light shielding wall has a notch. The lighting fixture according to claim 1, wherein an end of the light absorbing member closer to the light source is disposed at a position farther from the light source in an optical axis direction of the light source than an end closer to the light source of the lens. The lighting fixture according to any one of claims 1 to 4, further comprising a holding member that is disposed inside the lamp body and holds the light absorbing member. The lighting fixture according to claim 5, wherein the holding member is a spring attached to the inside of the lamp body. The lighting fixture according to claim 5, wherein the holding member is a protrusion formed inside the lamp body. The lighting device according to claim 1, wherein the lens is held at an end portion of the light absorbing member on a side far from the light source.

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