JP2012018780A - Light source unit and lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting fixture realizing light distribution control by controlling direct-down light of an LED through adjustment of a diameter of a light source unit.SOLUTION: The light source unit is provided with a design cover 70 equipped with a bottom part 71, an opening 72 and a curved surface part 73 formed from the bottom part 71 toward the opening 72, and a flexible board 50 equipped with a plurality of LEDs 40. The design cover 70 is provided with a plurality of loopholes 7a formed on the curved surface part 73 so as to position nearly in a radial shape from the bottom part 71 toward an edge of the opening 72, and the flexible board 50 is installed along an outer surface of the design cover 70 so as to insert the LEDs 40 into the loopholes 7a.

Description

  The present invention relates to a light source unit that uses an LED (Light Emitting Diode) as a light source, and more particularly, to a light source unit that controls light distribution using a flexible substrate.

  In a conventional lighting device using an LED as a light source, there is a technique for condensing light emitted from the LED by a condensing lens (see Patent Document 1). In addition, there is a technique for realizing light distribution of light emitted from an LED by using a diffusion lens.

Japanese Patent No. 4341245

  In the conventional light distribution technology for LED lighting fixtures, a condenser lens and a diffusion lens are used, so that there is a problem that the cost of the lens is increased and the cost of the entire lighting fixture is increased. Further, for example, a downlight using an LED as a light source has a light distribution width mainly by a diffusion lens, but there is a problem that light distribution control is difficult by light distribution by a diffusion lens.

  The present invention has been made to solve the above-described problems, and an object thereof is to provide a luminaire that can realize light distribution control of light emitted from an LED without using a lens.

The light source unit according to the present invention is:
A pot-shaped design cover comprising a bottom and an opening, the design cover comprising a curved portion formed from the bottom toward the opening;
A light source substrate including a plurality of light sources,
The design cover is
A plurality of holes formed in the curved surface portion, the plurality of holes formed so as to be positioned substantially radially from the bottom toward the edge of the opening,
The light source substrate is
The light sources of the plurality of light sources are installed along the outer surface of the design cover so as to be inserted into the holes of the plurality of holes.

  A light source unit according to the present invention is a pot-shaped design cover including a bottom portion and an opening, and includes a design cover including a curved surface portion formed from the bottom toward the opening, and a light source including a plurality of light sources. And the design cover includes a plurality of holes formed in the curved surface portion, the plurality of holes formed so as to be positioned substantially radially from the bottom portion toward an edge of the opening portion. The light source board is installed along the outer surface of the design cover so as to insert each light source of the plurality of light sources into each hole of the plurality of holes, so that the light source ( LED) can control the direct light that emits the strongest light, and can obtain spot light distribution and bad wing light distribution without using a lens, so that the cost of the lighting fixture can be reduced. Further, by not using a lens, light that is lost when passing through the lens can be eliminated, and the illumination efficiency of the light source can be improved.

1 is a perspective view of a lighting fixture 100 according to Embodiment 1. FIG. 1 is an exploded perspective view of a lighting fixture 100 according to Embodiment 1. FIG. 3 is a partial cross-sectional view of a fixing portion between light source unit 30 and frame portion 15 of lighting apparatus 100 according to Embodiment 1. FIG. It is the partially broken view and B section enlarged sectional view of the light source unit 30 of the lighting fixture 100 which concerns on Embodiment 1. FIG. 6 is a light distribution diagram showing spot light distribution of light source unit 30 of lighting apparatus 100 according to Embodiment 1. FIG. It is a light distribution diagram which shows the bad wing light distribution of the light source unit 30 of the lighting fixture 100 which concerns on Embodiment 2. FIG. It is a perspective view of the lighting fixture 100a which concerns on Embodiment 3. FIG. It is a disassembled perspective view of the lighting fixture 100a which concerns on Embodiment 3. FIG.

Embodiment 1 FIG.
Hereinafter, the present embodiment will be described with reference to the drawings.

  FIG. 1 is a perspective view of a lighting fixture 100 according to the present embodiment. FIG. 2 is an exploded perspective view of the lighting fixture 100 according to the present embodiment. FIG. 3 is a cross-sectional view of a fixed portion between light source unit 30 and frame portion 15 of lighting apparatus 100 according to the present embodiment. FIG. 4 is a partially cutaway view (partial sectional view) and an enlarged B sectional view of light source unit 30 of lighting apparatus 100 according to the present embodiment. The structure of the lighting fixture 100 which concerns on this Embodiment is demonstrated using FIGS. 1-4.

  The luminaire 100 according to the present embodiment assumes, for example, a downlight that is attached by being embedded in an attachment hole such as a ceiling.

  The lighting fixture 100 includes a lighting fixture body 20, a light source unit 30, and a frame portion 15 attached to the light source unit 30. The frame portion 15 includes an attachment spring 151 for fixing the lighting fixture to an attachment hole such as a ceiling.

  A lighting device 80 and a power terminal block 90 are attached to the luminaire main body 20 with screws (not shown). The lighting device 80 lights the LED 40 (light source) included in the light source unit 30. The lighting device 80 is electrically connected to the light source unit 30. Further, the power terminal block 90 supplies power to the lighting device 80. The power terminal block 90 is electrically connected to the lighting device 80.

  As shown in FIG. 2, the light source unit 30 includes a design cover 70, a flexible substrate 50 (light source substrate), and a unit cover 60.

  The design cover 70 has a bowl shape (a bowl shape, a bowl shape) including a bottom portion 71 and an opening portion 72, and includes a curved surface portion 73 formed from the bottom portion 71 toward the opening portion 72. The design cover 70 includes a plurality of through holes 7 a (holes) formed in the curved surface portion 73. The plurality of through holes 7 a are located substantially radially from the bottom 71 toward the edge 74 of the opening 72. In FIG. 2, there are eight radial axes (hereinafter also referred to as radial axes 75) from the bottom 71 to the edge 74 at substantially equal intervals, and there are four through holes 7a on one radial axis 75. Are formed at approximately equal intervals. That is, in the curved surface portion 73 of the design cover 70, “four through holes 7a” × “8 radial shafts 75” = “32 through holes 7a” are formed.

  The design cover 70 includes a flange portion 7b that protrudes substantially horizontally from the edge portion 74 in the outer direction, and a claw portion 7c that is an end portion of the flange portion 7b. The collar portion 7 b and the claw portion 7 c are components that fix the light source unit 30 to the frame portion 15. A method of fixing the light source unit 30 to the frame portion 15 will be described later.

  The design cover 70 is formed of an insulator.

  The flexible substrate 50 (light source substrate) is an LED substrate including a plurality of LEDs 40 (light sources). The flexible substrate 50 is flexible and can be deformed.

  The flexible substrate 50 has a bowl shape (a bowl shape or a bowl shape) including a substrate bottom portion 51, a substrate opening portion 52, and a substrate curved surface portion 53 formed from the substrate bottom portion 51 toward the substrate opening portion 52. . The substrate curved surface portion 53 includes a cut portion 56 that is cut substantially radially from the substrate bottom 71 toward the substrate edge 54 of the substrate opening 52.

  As shown in FIG. 2, the flexible substrate 50 includes eight cut portions 56 formed by cutting out the central portion 510 of the substrate bottom portion 51 to the substrate edge portion 54. The substrate curved surface portion 53 of the flexible substrate 50 is divided into eight (eight) by eight cut portions 56. That is, the flexible substrate 50 has a flower shape having eight petals with the central portion 510 as a connecting portion.

  In the flexible substrate 50, four LEDs 40 are mounted on a radial axis (referred to as a substrate radial axis 55) from the central portion 510 of the substrate bottom 51 to the substrate edge 54 in one petal portion described above. One petal portion on which the four LEDs 40 are mounted is referred to as a mounting portion 5. The flexible substrate 50 includes eight mounting parts 5 (mounting part 5a to mounting part 5h).

  The flexible substrate 50 has a substrate radial shaft 55, one for each mounting portion 5 of the eight mounting portions 5 a to 5 h, and four LEDs 40 are mounted on the substrate radial shaft 55. That is, since the flexible substrate 50 has eight substrate radial axes 55 and four LEDs 40 are mounted on each substrate radial shaft 55, 32 LEDs 40 are mounted in total.

  The unit cover 60 has substantially the same shape as the design cover 70. The unit cover 60 has a bowl shape (a bowl shape) including a unit cover bottom 61, a unit cover opening 62, and a unit cover curved surface portion 63 formed from the unit cover bottom 61 toward the unit cover opening 62. The shape is substantially the same as that of the design cover 70.

  The unit cover 60 includes a unit cover fringe portion 64 that extends outward from the edge of the unit cover opening 62. The unit cover 60 is formed of an insulator. For example, an aluminum cover to which an insulator is attached may be used. The unit cover 60 formed of an aluminum cover to which an insulator is attached is also a heat radiator that radiates heat generated by the flexible substrate 50.

  The frame portion 15 has a frame opening 155. 2 and 3, the frame portion 15 includes a donut-shaped (ring-shaped) outer frame portion 15c, an inner frame portion 15a having a portion standing on the inner side of the outer frame portion 15c, and an inner frame. An attachment hole 15b provided in the portion 15a and a V-shaped attachment spring 151 attached to the inner frame portion 15a and projecting outward (and the ceiling surface side) from the inner frame portion 15a are provided.

  As shown in FIG. 3, the inner frame portion 15 a extends from the inner frame standing portion 152, which is a portion standing on the inner side of the outer frame portion 15 c, and the inner frame standing portion 152. And an inner frame fringe portion 153 formed along the irradiation direction side. That is, the inner frame portion 15a has a substantially L-shaped cross section. A mounting hole 15 b is formed in the inner frame fringe portion 153. As shown in FIG. 3, the frame portion 15 fixes the unit cover 60, the flexible substrate 50, and the design cover 70 by inserting the claw portion 7 c of the design cover 70 into the mounting hole 15 b.

  Next, a method for assembling the light source unit 30 will be described.

  The flexible substrate 50 is installed along the outer surface of the design cover 70 so that the LED 40 is inserted into the through hole 7 a of the design cover 70. While inserting the four LEDs 40 mounted on the substrate radial shaft 55 of one mounting portion 5 into the four through holes 7a formed on the radial shaft 75 of the curved surface portion 73 of the design cover 70, flexible The substrate 50 is installed so as to be placed over the outer surface of the design cover 70.

  As shown in FIG. 4, the flexible substrate 50 is attached to the outline of the design cover 70 so that the LED 40 mounted on the flexible substrate 50 is exposed from the through hole 7 a. 4, the LED 40 is inserted and installed in the through hole 7a so as to face the inside of the design cover 70 from the outside of the design cover 70. As shown in FIG. At this time, it is preferable to install the LED 40 so that the irradiation direction 41 of light immediately below the LED 40 is substantially perpendicular to the tangent line 77 of the curved surface portion of the through hole 7a. This is because the accuracy of light distribution control, which will be described later, is improved by installing the light directing direction 41 of the LED 40 so as to be substantially perpendicular to the tangent line 77 of the curved surface portion of the through hole 7a.

  The unit cover 60 covers the flexible substrate 50 installed along the outer surface of the design cover 70 and covers the design cover 70. The unit cover 60 is attached with the flexible substrate 50 sandwiched between the unit cover 60 and the design cover 70.

  The light source unit 30 composed of the design cover 70, the flexible substrate 50, and the unit cover 60 is inserted into the frame opening 155 of the frame portion 15 from the irradiation direction side (see FIG. 2).

  3, the light source unit 30 is inserted into the frame opening 155 from the irradiation direction side in a state where the design cover 70, the flexible substrate 50, and the unit cover 60 are overlapped. Further, the unit cover fringe portion 64 of the unit cover 60 is disposed so as to contact the ceiling surface side of the collar portion 7 b of the design cover 70.

  The claw portion 7 c of the design cover 70 is fitted into the mounting hole 15 b provided in the inner frame fringe portion 153 of the frame portion 15. Then, the unit cover 60, the flexible substrate 50, and the design cover 70 are fixed to the frame portion 15 by caulking the claw portion 7 c (collar portion 7 b).

  Furthermore, the design cover 70 and the unit cover 60 (light source unit 30) are fixed to the lighting fixture body 20 by the screws 12 (FIG. 2).

  Although the case where the unit cover 60 is an insulator has been described in the present embodiment, the material constituting the unit cover 60 may be a non-insulator. In this case, it is necessary to separately provide an insulator between the unit cover 60 and the flexible substrate 50.

  The interval between the cut portions 56 of the flexible substrate 50 can be widened or narrowed. Therefore, even if the diameter (unit diameter L1) of the opening 72 of the design cover 70 is increased or decreased, the same flexible substrate 50 can be used.

  In the present embodiment, the flexible substrate 50 has a shape having eight petals, that is, a shape including eight mounting portions 5 (5a to 5h). However, four mounting units, six mounting units, ten mounting units, or twelve mounting units may be used. Further, in the present embodiment, four LEDs 40 are mounted on one mounting portion, but the number of LEDs 40 mounted on one mounting portion is, for example, 2, 3, 5,. Etc., or more. Although the size of the fixture, the light distribution design, and the like vary depending on the purpose of use and the installation location of the lighting fixture, this embodiment can be applied flexibly as appropriate.

  Next, the light distribution control of the lighting fixture 100 (light source unit 30) according to the present embodiment will be described.

  The lighting fixture 100 controls the light distribution of the plurality of LEDs 40 by adjusting the distance between the cut portions 56 of the substrate curved surface portion 53 of the flexible substrate 50. Adjusting the interval between the cut portions 56 of the substrate curved surface portion 53 also means adjusting the unit diameter L1 of the light source unit 30. That is, the lighting fixture 100 controls the light distribution of the plurality of LEDs 40 by adjusting the unit diameter L1 of the light source unit 30.

  Alternatively, adjusting the distance between the cut portions 56 of the substrate curved surface portion 53 of the flexible substrate 50 also means adjusting the bending diameter of the curved surface of the substrate curved surface portion 53. That is, the lighting fixture 100 controls the light distribution of the plurality of LEDs 40 by adjusting the bending diameter R of the curved surface portion 73 of the light source unit 30 as described later.

  FIG. 5 is a light distribution diagram showing the light distribution (spot light distribution) of the light source unit 30 of the luminaire 100 according to the present embodiment.

Let the inner diameter (unit diameter L1) of the light source unit 30 be A (L1 = A), and let L be the distance directly from the end of the light source unit 30 (light source unit end 31) to the point P where light is to be condensed. At this time, the bending diameter R of the light source unit 30 is expressed by the following formula 1.
R = √ ((A / 2) ² + L ² ) (Equation 1)

  Assume a case where the light source unit 30 is set to a spot light distribution for condensing light directly below the LED 40 at a point P that is a distance L away from the luminaire 100 directly below. That is, the point P is a position away from the approximate center of the opening 72 by a distance L in a direction substantially perpendicular to the opening surface of the opening 72. By setting L, the bending diameter R of the light source unit, and the unit diameter L1 = A so as to satisfy the relationship of Expression 1, it is possible to obtain a spot light distribution that condenses the light directly below the LED 40 at the point P.

  As described with reference to FIG. 4, the irradiation direction 41 of the direct light that emits the strongest light among the light emitted from the LED 40 is substantially perpendicular to the tangent line 77 of the curved surface portion of the light source unit 30. Therefore, the luminaire 100 set as described above can collect the light directly below the LED 40 at the point P with high accuracy.

  As described above, by changing the bending diameter R of the light source unit 30, the direct light that is the strongest light emitted from the LED 40 can be controlled.

  In the present embodiment, it is assumed that the shape of the light source unit 30 is part of a spherical surface having a bending diameter R (radius R). That is, the lighting fixture 100 of the present embodiment collects light when the bending diameter R, the unit diameter L1 (= A), and L (distance to the point P) are set so as to satisfy the above formula 1. Even if a lens or the like is not attached, it is possible to realize spot light distribution in which light directly below the plurality of LEDs 40 mounted on the light source unit 30 is condensed in the vicinity of the point P. Moreover, since the bending diameter R and the unit diameter L1 can be changed by changing the shape of the design cover 70 (and the unit cover 60), the position (point P) at which the light directly under the LED 40 is to be condensed is determined. Can be changed.

  The lighting fixture 100 according to the present embodiment can realize light distribution control at low cost. Downlights using LEDs as a light source have been given a wide range of light distribution mainly by a diffusion lens. Therefore, light distribution control is difficult and the cost of the lens is high. However, in the present embodiment, by changing the radius of the light source unit 30, the direct light that emits the strongest light from the light source (LED) can be controlled, so that the cost can be reduced. Moreover, in the lighting fixture 100 which concerns on this Embodiment, since a lens is not used, the light which becomes loss when transmitting a lens can be eliminated, and the irradiation efficiency of LED40 can be improved.

Embodiment 2. FIG.
In the present embodiment, light distribution control for the lighting apparatus 100 to realize bad wing light distribution will be described. About the structure and structure of the lighting fixture 100, since it is the same as that of the content of FIGS. 1-4 of Embodiment 1, the description is abbreviate | omitted. In the present embodiment, light distribution control for the lighting apparatus 100 to realize bad wing light distribution will be described.

  FIG. 6 is a light distribution diagram showing the bad wing light distribution of the light source unit 30 of the lighting fixture 100 according to the present embodiment.

  As shown in FIG. 6, the cross section of the light source unit 30 according to the present embodiment is symmetrical with respect to a position corresponding to the central portion 510 (see FIG. 2) of the flexible substrate 50 (hereinafter referred to as the apex portion 310). Are provided with two curved surface portions A73a and a curved surface portion B73b.

  As shown in FIG. 5, the light source unit 30 according to the first embodiment has a shape in which the cross section of the curved surface portion 73 forms a single arc although the cross section of the curved surface portion 73 is symmetrical with respect to the apex portion 310. It was. In the light source unit 30 according to the present embodiment, the cross section of the curved surface portion 73 (the curved surface portion A 73 a and the curved surface portion B 73 b that are symmetrical with respect to the vertex portion 310) does not form one arc, but the vertex portion 310. It has a shape in which two arcs are formed symmetrically about the center. For example, the shape of the curved surface portion 73 (curved surface portion A 73 a and curved surface portion B 73 b) in FIG. 6 is such that the curved surface portion 73 in FIG. 5 is replaced by the apex portion 310 by making the unit diameter L 1 of the light source unit 30 in FIG. The shape is like a fold.

  In the present embodiment, as shown in FIG. 6, the unit diameter L1 of the light source unit 30 is B (L1 = B). The bending diameter R of the curved surface portion A 73a and the curved surface portion B 73b is also set to B (R = B). That is, unit diameter L1 = bending diameter R = B. The relationship between the unit diameter L1 = A of the light source unit 30 in FIG. 5 and the unit diameter L1 = B of the light source unit 30 shown in FIG. 6 is A> B.

  Assuming that the unit diameter L1 = the bending diameter R = B, the light directly under the LED 40 on the cross section of the curved surface portion A73a is condensed at the condensing point Pa from the principle described in the first embodiment. Further, the light directly under the LED 40 on the cross section of the curved surface portion B73b is condensed at the condensing point Pb. That is, the light source unit 30 of the present embodiment has a bad wing light distribution in which the strong direct light of the LED 40 is left and right.

  As shown in FIG. 2, the LEDs 40 mounted on the eight mounting portions 5a to 5h are condensed near the edge portion 74 of the opening 72 (substrate opening 52, unit cover opening 62) facing each other. The light is irradiated from the vicinity of 74 to the outside of the light source unit 30. Thereby, the bad wing light distribution which makes a desk top surface or a floor surface uniform brightness is realizable.

  The lighting apparatus 100 of the present embodiment is configured so that the unit diameter L1 = the bending diameter R = B (of the curved surface portion A 73a and the curved surface portion B 73b) is set so as to satisfy the light source without mounting a diffusion lens or the like. Since the light directly below the plurality of LEDs 40 mounted on the unit 30 is condensed in the vicinity of the edge portion 74 and irradiated to the outside of the light source unit from the vicinity of the edge portion 74, bad wing light distribution can be realized.

  By changing the shape of the design cover 70 (and the unit cover 60), the shape of the light source unit 30 as shown in FIG. 6 can be obtained. Therefore, the lighting fixture 100 according to the present embodiment can realize bad wing light distribution control at a low cost.

  As described above, the lighting fixture 100 according to the present embodiment can control the direct light that emits the strongest light from the light source (LED) by changing the radius of the light source unit 30, and does not use a lens. In addition, the bad wing light distribution control can be realized at low cost. Moreover, by not using a lens, the loss of light when passing through the lens can be eliminated, and the LED irradiation efficiency can be improved.

Embodiment 3 FIG.
This Embodiment demonstrates the lighting fixture 100a provided with the light source unit 30a which makes a light source EL (electroluminescence). EL includes, for example, organic EL and inorganic EL.

  FIG. 7 is a perspective view of the lighting fixture 100a according to the present embodiment. FIG. 8 is an exploded perspective view of the lighting fixture 100a according to the present embodiment. The same components as those in FIGS. 1 and 2 described in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  The lighting fixture 100a includes a light source unit 30a. The light source unit 30a includes a unit cover 60 (the same shape as in the first embodiment), an organic EL 130, and a design cover with light transmission (hereinafter referred to as a light transmission cover 140). In the present embodiment, the organic EL 130 is used, but an inorganic EL may be used.

  The translucent cover 140 has a shape (a bowl shape) including a bottom portion, an opening portion, and a translucent cover curved surface portion 143 formed from the bottom portion toward the opening portion. The shape of the translucent cover 140 is the same as that of the design cover 70 described in the first embodiment. The material of the translucent cover 140 is a material that transmits light and is an insulator.

  The organic EL 130 has substantially the same shape as the translucent cover 140 and is installed so as to cover the translucent cover 140. However, the bottom of the organic EL 130 is open. In other words, the organic EL 130 has a fan shape when spread, and is attached to the outer surface of the transmissive design cover (the translucent cover 140).

  When both ends of the fan-shaped organic EL 130 are connected, a bowl-shaped (bowl-shaped, bowl-shaped) organic EL 130 is obtained. The organic EL 130 is shaped like a bowl by connecting both ends of the fan-shaped organic EL 130. The organic EL 130 is installed along the outer surface of the translucent cover 140 by adjusting the overlapping width of the connecting portions (inner diameter adjusting portions 131) at both ends of the sector shape.

  The unit cover 60 is put on the organic EL 130 so as to cover the organic EL 130. The light source unit 30 a is fixed with the organic EL 130 sandwiched between the unit cover 60 and the translucent cover 140. The material of the unit cover 60 is preferably an insulator. When the material is a non-insulating material, it is necessary to provide an insulating material between the unit cover 60 and the organic EL 130.

  The light source unit 30a is attached to the lighting fixture body 20 with screws.

  The translucent cover 140 has the same shape as the design cover 70 described in the first embodiment, and includes a translucent cover collar portion 147b corresponding to the collar portion 7b, and a translucent cover claw portion 147c corresponding to the claw portion 7c. Is provided. The method of fixing the unit cover 60, the organic EL 130, and the translucent cover 140 using the frame portion 15 is the same as that described in the first embodiment.

  The light distribution control method of the light source unit 30a is realized by adjusting the bending diameter R of the translucent cover curved surface portion 143 (the bending diameter R of the curved surface portion of the organic EL 130) or adjusting the unit diameter L1. As the light distribution control method of the light source unit 30a, the light distribution control method described in the first embodiment or the second embodiment can be applied.

  As described above, in the lighting fixture 100a of the present embodiment, the organic EL 130 is used instead of the LED 40 (light source) included in the lighting fixture 100 according to the first or second embodiment. By using the organic EL 130, a more uniform light distribution can be obtained.

  Although the first to third embodiments have been described above, two or more of these embodiments may be combined. Alternatively, one of these embodiments may be partially implemented. Or you may implement combining two or more embodiment among these partially.

  5, 5a, 5b, 5c, 5d, 5e, 5f, 5g, 5h Mounting part, 7a Through hole, 7b Collar part, 7c Claw part, 12 Screw, 15 Frame part, 15a Inner frame part, 15b Mounting hole, 15c Outer frame Part, 20 lighting fixture body, 30, 30a light source unit, 31 light source unit end, 40 LED, 41 direct light irradiation direction, 50 flexible substrate, 51 substrate bottom, 52 substrate opening, 53 substrate curved surface portion, 54 substrate edge , 55 substrate radial axis, 56 cut part, 60 unit cover, 61 unit cover bottom part, 62 unit cover opening part, 63 unit cover curved surface part, 64 unit cover fringe part, 70 design cover, 71 bottom part, 72 opening part 73 Curved surface portion, 73a Curved surface portion A, 73b Curved surface portion B, 74 Edge portion, 75 Radial axis, 77 Curved surface portion Tangent line, 80 lighting device, 90 power terminal block, 100, 100a lighting fixture, 130 organic EL, 131 inner diameter adjustment part, 140 translucent cover, 143 translucent cover curved surface part, 147b translucent cover collar part, 147c translucent cover claw Part, 151 attachment spring, 152 inner frame standing part, 153 inner frame fringe part, 155 frame opening part, 310 apex part, 510 center part.

Claims (8)

A pot-shaped design cover comprising a bottom and an opening, the design cover comprising a curved portion formed from the bottom toward the opening;
A light source substrate including a plurality of light sources,
The design cover is
A plurality of holes formed in the curved surface portion, the plurality of holes formed so as to be positioned substantially radially from the bottom toward the edge of the opening,
The light source substrate is
A light source unit, wherein the light source unit is installed along an outer surface of the design cover so as to insert each light source of the plurality of light sources into each hole of the plurality of holes. The light source substrate is
It is a bowl shape provided with a substrate bottom, a substrate opening, and a substrate curved part formed from the substrate bottom toward the substrate opening, and the substrate curved part is directed from the substrate bottom toward the edge of the substrate opening. The light source unit according to claim 1, further comprising a cut portion that is substantially radially cut.   The light source unit according to claim 1, wherein the light source substrate is a flexible substrate. The light source unit is
The light beam unit according to claim 3, wherein light distribution of the plurality of light sources is controlled by adjusting an interval between the cut portions of the substrate curved surface portion by the curved surface portion of the design cover. The light source unit further includes:
The unit cover having substantially the same shape as the design cover, comprising a unit cover that covers the light source substrate installed along an outer surface of the design cover and covers the design cover. The light source unit according to any one of 4. The light source unit further includes:
The light source unit according to claim 5, further comprising a frame portion that fixes the unit cover, the light source substrate, and the design cover. With a pot-shaped design cover made of a material that allows light to pass through,
A light source unit comprising electroluminescence having substantially the same shape as the design cover, the electroluminescence being installed so as to cover the outer surface of the design cover.   An illumination fixture comprising: the light source unit according to any one of claims 1 to 7; and a lighting device that lights a light source included in the light source unit.

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