JP2017183005A - Lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an embedded lighting fixture capable of irradiating two directions such as a downward direction and a wall surface direction, without enlarging a lamp body.SOLUTION: A lighting fixture includes a first light source part 21 having a light-emitting element, and a second light source part 31 having a light-emitting element. The lighting fixture has a reflection part 41 having an opening part 48 and a reflection surface 47 continuing from the opening part 48. The reflection part 41 has a first emission port 42 configured to emit light of the first light source 21, and a second emission port 43 configured to emit light from the second light source part 31. The first light source 21 and the second light source 31 are arranged so that an optical axis L1 of the first light source part 21 and an optical axis L2 of the second light source 31 makes a right angle or an acute angle. Light from the first light source part 21 and second light source part 31 is emitted from the opening part 48.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a lighting fixture.

  2. Description of the Related Art Conventionally, there has been known an embedded lighting fixture that can change the direction of light irradiation from a light source into a lower surface direction and a wall surface direction (see, for example, Patent Document 1).

  Japanese Patent Application Laid-Open No. 2004-228688 discloses an embedded lighting fixture that includes a lamp holder at the tip of a swing arm that can swing in the axial direction in a housing, and that can change the irradiation direction by moving the swing arm. Has been.

Japanese Utility Model Publication No. 56-144424

  However, in the embedded luminaire disclosed in Patent Document 1, a space for the shaking arm to oscillate is required, leading to an increase in the size of the embedded luminaire.

  Then, this invention is made | formed in view of the said subject, and it aims at providing the lighting fixture which can be irradiated to two directions, such as a downward direction and a wall surface direction, without enlarging a lamp main body.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

That is, the lighting fixture disclosed in this application is
A lighting apparatus comprising a first light source unit having a light emitting element and a second light source unit having a light emitting element,
A reflection portion having an opening and a reflection surface continuing from the opening;
The reflection unit has a first emission port that emits light of the first light source unit, and a second emission port that emits light of the second light source unit,
The first light source unit and the second light source unit are arranged such that the optical axis of the first light source unit and the optical axis of the second light source unit form a right angle or an acute angle,
Light from the first light source unit and the second light source unit is emitted from the opening.

In the lighting fixture disclosed in the present application,
It is preferable that the center of the first emission port is offset from the center of the reflection portion.

In the lighting fixture disclosed in the present application,
The second light source unit includes a diffusion panel that covers the second emission port, and a panel holder that is disposed between the light emitting element and the diffusion panel,
The panel holder has a reflecting surface extending along the optical axis,
It is preferable that the reflection surface on the first light source unit side is formed so that an inclination with respect to the optical axis of the second light source unit is smaller than that on the emission side.

In the lighting fixture disclosed in the present application,
Control means for controlling the lighting state of the first light source unit and the second light source unit,
The control means preferably performs switching control between a mode in which the first light source is turned on and a mode in which the second light source is turned on.

  According to this invention, it can irradiate in two directions, such as a downward direction and wall surface direction.

The perspective view which looked at the embedded type lighting fixture which concerns on one Embodiment of this invention from diagonally downward. The perspective view which looked at the embedded lighting fixture from diagonally upward. The top view which shows a lamp main body. It is a figure which shows the state which attached the lamp main body to the attachment hole, and is the sectional view on the AA line of FIG. It is the perspective view which shows the reflection part, (a) The perspective view which looked at the reflection part from diagonally downward, (b) The perspective view which looked at the reflection part from diagonally upward. The bottom view of the reflection part which shows arrangement | positioning with a 1st output port and a 2nd output port. It is a perspective view which shows a panel holder, (a) Perspective view of a panel holder (b) Side view of the panel holder seen from the optical axis (c) Sectional view of the BB line of FIG.7 (b). Explanatory drawing explaining the light distribution control by the panel holder of a 2nd light source part.

An embedded lighting apparatus 100 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 8. The embedded lighting device 100 is an embodiment of the lighting device of the present invention. As shown in FIG. 4, the embedded lighting fixture 100 is a downlight that is formed in a ceiling C serving as a mounting surface, for example, embedded in a circular mounting hole H. In the following description, the vertical direction of the embedded lighting device 100 will be described as the vertical direction in the state where the embedded lighting device 100 is installed on the ceiling C (the vertical direction in FIG. 4). In the description of the present embodiment, a state in which the embedded lighting device 100 and the like are viewed from above is a plan view, and a state in which the embedded lighting device 100 and the like are viewed from below is a bottom view. A state in which the embedded lighting device 100 and the like are viewed from a direction orthogonal to the vertical direction is referred to as a side view. A state in which the cross-sectional shape of the embedded lighting device 100 or the like is viewed is referred to as a cross-sectional view.

  As shown in FIGS. 1 and 2, the embedded lighting device 100 mainly includes a lamp body 11 and a power supply unit 61. The lamp body 11 is electrically connected to the power supply unit 61 by an electric wire. The lamp body 11 is electrically connected to the power supply unit 61 by an electric wire. The lamp body 11 and the power supply unit 61 may be connected by a holding member, and the power supply unit 61 may be held on the side of the lamp body 11.

The lamp body 11 includes a first light source unit 21, a second light source unit 31, a reflection unit 41, and a heat sink 51.
In the lamp body 11, the direction along the optical axis L1 is defined as the optical axis direction of the first light source unit 21, the direction orthogonal to the axial direction is defined as the radial direction of the first light source unit 21, and the optical axis L2 The direction along the optical axis direction of the second light source unit 31 is defined, and the direction orthogonal to the axial direction is defined as the radial direction of the second light source unit 31.

  The first light source unit 21 is a part that emits light along the optical axis L <b> 1 of the embedded lighting device 100. In the present embodiment, the first light source unit 21 emits light with the lower surface side as the irradiation surface. As shown in FIG. 4, the first light source unit 21 is provided in the light source arrangement unit 53 of the heat sink 51, and includes a substrate 22, a panel holder 23, and a diffusion panel 24.

The board | substrate 22 is an LED module which has the some light emitting element which is a point light source on the board | substrate surface processed into flat form. The light emitting element is a COB type LED having a circular light emitting surface disposed at the center of the substrate 22. The light emitting elements are arranged so as to correspond to the openings 26 of the panel holder 23. The substrate 22 is disposed in contact with the inner surface of the bottomed portion of the heat sink 51 and is attached to the heat sink 51 by an attachment member such as a screw. The substrate 22 is electrically connected to the power supply unit 61 by an electric wire (not shown).
In this embodiment, a light emitting element (COB type LED) is used as a light source. However, the type of the light source is not limited to the light emitting element, and for example, a surface mount type light emitting element or an organic EL element (OLED) is used. But it is feasible. That is, the light emitting element is an example of the first light source of the present invention.
Moreover, the board | substrate 22 may be attached to the heat sink 51 via a heat conductive sheet (not shown) or thermal radiation grease, and can obtain higher thermal radiation property by this.

The panel holder 23 is disposed between the substrate 22 having a light emitting element and the diffusion panel 24. The panel holder 23 is a cap-shaped member that holds the diffusion panel 24 between the lower end of the panel holder 23 and the upper end of the reflecting portion 41 while separating the diffusion panel 24 and the substrate 22 at a predetermined interval. The panel holder 23 is attached to the heat sink 51 with an attachment member such as a screw. On the first light source 21 side (upper end) of the panel holder 23, a circular opening 26 is formed at the center. The peripheral wall portion extending from the opening 26 is formed so as to expand along the optical axis L1 (downward), and the inner peripheral surface of the peripheral wall portion is a reflection surface 27 that reflects light generated from the light emitting element. It is formed. That is, the panel holder 23 has a reflecting surface 27 that extends along the optical axis L1. In the present embodiment, the reflection surface 27 of the panel holder 23 is formed in a slope shape. The panel holder 23 reflects light, which is emitted from the light emitting element, toward the side with respect to the optical axis L1 (downward in FIG. 4) by the reflecting surface 27, and distributes light so as to go toward the optical axis L1. To do. That is, the light emitted from the light emitting element in a direction other than the optical axis L1 of the light emitting element is reflected by the reflecting surface 27, and the light generated from the light emitting element is efficiently condensed on the irradiation surface.
In addition, as the panel holder 23 of this embodiment, what the reflective surface 27 formed in the slope shape which spreads as it goes below was demonstrated, However, The shape of the reflective surface 27 is not limited to this. For example, the shape of the reflective surface 27 may be formed in a parabolic shape that expands downward.

The diffusion panel 24 is a member that covers the first emission port 42 on the upper side of the reflecting portion 41 and transmits and diffuses light from the light emitting elements disposed in the heat sink 51 to form an irradiation surface. The diffusion panel 24 is formed of a light-transmitting resin material or glass material. As shown in FIG. 4, the diffusion panel 24 has a circular shape in plan view and is formed in a dome shape protruding downward. The diffusion panel 24 has a flange portion 28 protruding outward in the radial direction at the lower peripheral edge portion. A packing 29 is inserted between the lower surface of the flange portion 28 and the reflecting portion 41. The diffuser panel 24 is sandwiched between the upper end of the reflection unit 41 and the lower end of the panel holder 23 while being positioned at the upper end of the reflection unit 41, and is held at a position facing the light emitting element.
The shape of the diffusion panel 24 is not limited to the circular shape as shown in FIG. Further, the shape is not limited to a dome shape projecting downward, but may be a shape projecting upward or on a flat surface.

  The second light source unit 31 is a part that emits light along the optical axis L2 with the direction inclined by a predetermined angle with respect to the optical axis L1 of the first light source unit 21 as an optical axis L2. The second light source unit 31 is arranged such that an angle θ1 formed by the optical axis L1 and the optical axis L2 is a right angle or an acute angle. In the present embodiment, the second light source unit 31 emits light with the upper surface of the wall surface W as an irradiation surface. As shown in FIG. 4, the second light source unit 31 is provided in the light source arrangement unit 54 of the heat sink 51, and includes a substrate 32, a panel holder 33, and a diffusion panel 34.

The board | substrate 32 is an LED module which has the some light emitting element which is a point light source on the board | substrate surface processed into flat form. The light emitting element is a COB type LED having a circular light emitting surface arranged in the center of the substrate 32. The light emitting elements are arranged so as to correspond to the openings 36 of the panel holder 33. The substrate 32 is disposed in contact with the inner surface of the heat sink 51 and is attached to the heat sink 51 by an attachment member such as a screw. The board | substrate 32 is electrically connected with the power supply part 61 with the electric wire.
In this embodiment, a light emitting element (COB type LED) is used as a light source. However, the type of the light source is not limited to the light emitting element, and for example, a surface mount type light emitting element or an organic EL element (OLED) is used. But it is feasible. That is, the light emitting element is an example of the second light source of the present invention.
Moreover, the board | substrate 32 may be attached to the heat sink 51 via a heat conductive sheet (not shown) or thermal radiation grease, and thereby higher heat dissipation can be obtained.

The panel holder 33 is disposed between the substrate 32 having a light emitting element and the diffusion panel 34. The panel holder 33 is a cap-shaped member that holds the diffusion panel 34 between the inner end of the panel holder 33 and the outer end of the reflecting portion 41 while separating the diffusion panel 34 and the substrate 32 at a predetermined interval. The panel holder 33 is attached to the heat sink 51 with an attachment member such as a screw. A circular opening 36 is formed at the center of the panel holder 33 on the second light source unit 31 side. The inner peripheral surface of the peripheral wall portion extending from the opening 36 is formed so as to extend along the optical axis L2, and is formed as a reflective surface 37 that reflects light generated from the light emitting element. That is, the panel holder 33 has the reflecting surface 37 that spreads along the optical axis L2. In the present embodiment, the reflection surface 37 of the panel holder 33 is formed in an inclined shape. The panel holder 33 reflects the light that travels away from the optical axis L2 with respect to the optical axis L2 (wall surface direction) out of the light generated from the light emitting element, and reflects the light toward the optical axis L2. Control light distribution. That is, the light emitted from the light emitting element is efficiently condensed on the irradiation surface by reflecting the light emitted in the direction other than the optical axis L2 of the light emitting element by the reflecting surface 37.
In addition, although the reflective surface 37 of this embodiment demonstrated what was formed in the inclined form extended along the optical axis L2, the shape of the reflective surface 37 is not limited to this. For example, the reflecting surface 37 may be formed in a parabolic shape that extends along the optical axis L2.

As shown in FIGS. 7 and 8, the reflective surface 37a on the first light source unit 21 side of the reflective surface 37 of the panel holder 33 is relative to the optical axis L2 of the second light source unit 31 than the reflective surface 37b on the emission side. The inclination is formed to be small. Of the reflection surface 37 of the panel holder 33, the first light source unit 21 side refers to the first light source unit 21 side (upper side) from the optical axis L2, and the emission side refers to the irradiation surface side from the optical axis L2 ( Point to the bottom. The light generated from the second light source unit 31 is formed such that the inclination θ2 of the reflection surface 37a on the first light source unit 21 side with respect to the optical axis L2 is smaller than the inclination θ3 of the reflection surface 37b on the output side with respect to the optical axis L2 side. Among these, the light irradiated to the reflective surface 37a on the first light source unit 21 side can be reflected further downward.
In addition, the reflecting surface 37 of the present embodiment has a flat reflecting surface 37b on the emission side. By forming in this way, the wall surface W side is irradiated with linear light that broadens the light generated from the second light source unit 31.
When the reflecting surface 37 is formed in a parabolic shape extending along the optical axis L2, the curvature of the reflecting surface 37a on the first light source unit 21 side of the reflecting surface 37 is the same as that of the reflecting surface 37b on the emitting side. By configuring so as to be larger than the curvature, light emitted from the second light source unit 31 to the reflection surface 37a on the first light source unit 21 side may be reflected further downward. it can.

The diffusion panel 34 is a member that covers the second emission port 43 of the reflection portion 41 and transmits and diffuses light from the light emitting elements disposed in the heat sink 51 to form an irradiation surface. The diffusion panel 34 is formed of a light-transmitting resin material or glass material. The diffusion panel 34 is formed in a substantially rectangular shape so as to cover the second emission port 43. The diffusion panel 34 has a flange portion 38 that protrudes radially outward. A packing 39 is inserted between the flange portion 38 and the reflection portion 41. The diffuser panel 34 is sandwiched between the outer end of the reflector 41 and the inner end of the panel holder 33 while being positioned on the reflector 41, and is held at a position facing the light emitting element.
The shape of the diffusion panel 34 is not limited to a substantially rectangular shape, and may be a substantially bow shape or a polygonal shape that can cover the second emission port 43. Further, the shape is not limited to a flat plate shape, and may be a dome shape protruding toward the irradiation direction side or a shape protruding toward the light emitting element side.

  The reflection unit 41 is a light source reflector that reflects light from the light source unit. Light from the first light source unit 21 and the second light source unit 31 is emitted to the irradiation surface through the opening 48 formed in the reflection unit 41. The opening 48 is formed on the irradiation side (lower side in FIG. 4) of the reflection part 41. The reflection part 41 has a reflection surface 47 that continues from the opening 48. The reflection surface 47 has a reflection surface 47 that reflects light from the light source unit on the inner peripheral surface that is continuous with the edge of the opening 48. In the present embodiment, the reflecting portion 41 has a reflecting surface 47 that extends along the optical axis L <b> 1 of the first light source portion 21. The reflective surface 47 is formed in a parabolic shape that extends along the optical axis L1. As shown in FIGS. 4 and 5, the reflection portion 41 has a first emission port 42, a second emission port 43, and a flange portion 46.

The first emission port 42 allows light generated from the light emitting element of the first light source unit 21 to pass therethrough. The first emission port 42 is disposed to face the first light source unit 21. The first emission port 42 is formed in a substantially circular shape on the first light source unit 21 side of the reflection unit 41. The second emission port 43 allows light generated from the light emitting element of the second light source unit 31 to pass therethrough. The second emission port 43 is disposed to face the second light source unit 31.
The second exit port 43 of the present embodiment is disposed on a virtual plane I that is orthogonal to the optical axis L2 of the second light source unit 31 and does not overlap the first exit port 42. Since the virtual plane I is orthogonal to the optical axis L2, it is configured to face the second light source unit. In addition, since the virtual plane I is defined so as not to overlap the first emission port 42, the first emission port 42 and the second emission port 43 do not overlap in plan view. Therefore, the second emission port 43 can be arranged so as not to obstruct the light emitted from the first emission port 42. The second exit port 43 formed on the virtual surface I is formed in a substantially bow shape with a bottom plate 41a protruding radially inward from the inner peripheral edge of the reflecting portion 41 on the enlarged diameter side (lower side).
In addition, the planar view shape of the reflecting portion 41 and the first emission port 42 is not limited to a circular shape as shown in FIG. 5 or the like, but may be a polygonal shape such as a square shape, and can be attached to the opening shapes of various attachment holes. It may be a shape. Moreover, the shape seen from the optical axis L2 of the second exit port 43 is not limited to a substantially arcuate shape, but may be a polygonal shape such as a quadrangular shape or a shape that can be attached to the opening shapes of various attachment holes.

  As shown in FIG. 6, the first emission port 42 is arranged at a position where the center O2 of the first emission port 42 is offset from the center O1 of the reflection portion 41. In the first emission port 42 of the present embodiment, the center O2 is disposed at a position shifted to the reflection surface 47 side facing the second emission port 43. The first emission port 42 is arranged so as to be shifted by a predetermined interval with respect to the center O1 of the reflection portion 41 (the center of the outer peripheral edge portion on the enlarged diameter (lower end) side). The reflection surface 47 side facing the second emission port 43 refers to the wall surface W side of the reflection portion 41 shown in FIG.

  A recess 44 into which the packing 29 is inserted is formed on the lower surface side of the flange portion 28 of the diffusion panel 24 at the periphery of the first emission port 42. The diffusion panel 24 is positioned at the upper end of the reflection portion 41 by attaching the reflection portion 41 and the heat sink 51 with an attachment member such as a screw in a state where the packing 29 is inserted into the recess 44. The peripheral edge of the second emission port 43 is covered with a packing 39 on the irradiation surface side of the flange portion 38. In the state where the packing 39 is inserted, the diffusing panel 34 is positioned on the reflecting portion 41 by attaching the reflecting portion 41 and the heat sink 51 with an attaching member such as a screw.

  The flange portion 46 is a flange portion that protrudes radially outward from the outer peripheral edge of the lower portion and is formed in an annular shape. The flange portion 46 is a portion that covers the peripheral portion of the mounting hole H in a state where the embedded lighting device 100 is installed in the mounting hole H of the ceiling C. On the upper surface of the flange portion 46, when the reflecting portion 41 is attached to the mounting hole H, a frame packing 50 having an annular shape in plan view for closing the gap between the reflecting portion 41 and the peripheral portion of the mounting hole H is provided. . The flange portion 46 covers the peripheral edge portion of the mounting hole H via the frame packing 50 on the lower surface side of the ceiling C.

  The heat sink 51 is a heat radiating member made of a metal material such as aluminum having a high thermal conductivity. The heat sink 51 includes light source arrangement portions 53 and 54 and a spring attachment portion 55 to which the attachment spring 71 is attached.

  The heat sink 51 is formed in a substantially cylindrical shape with a bottom. At one end of the heat sink 51 (on the second light source unit 31 side), a locking portion 52 that can be locked with the concave portion 45 of the reflecting portion 41 is provided. In a state where the locking portion 52 is locked to the recess 45, the heat sink 51 is attached to the reflecting portion 41 by an attachment member such as a screw. On the inner surface of the bottomed portion of the heat sink 51, a light source arrangement portion 53 for arranging the first light source portion 21 in a concave shape is formed. A light source arrangement portion 54 for arranging the second light source portion 31 is formed on the inner side surface of the locking portion 52 of the heat sink 51.

  The spring attachment portion 55 is a portion for attaching the attachment spring 71 to the heat sink 51. A plurality (two in this embodiment) of spring mounting portions 55 are provided so as to be substantially evenly arranged on the periphery of the heat sink 51. The spring mounting portion 55 is for contacting the mounting spring 71 and mounting with a screw.

The attachment spring 71 is a fixing means for embedding and attaching the lamp body 11 in the attachment hole H of the ceiling C. As shown in FIG. 3, the attachment spring 71 is disposed on a spring attachment portion 55 that is substantially equally disposed on the periphery of the heat sink 51. The attachment spring 71 is a plate spring formed by bending and bending a middle portion of a plate-like metal member such as a stainless steel material at a plurality of locations. The attachment spring 71 is a leaf spring formed in a substantially V shape. The base end is in contact with the spring attachment portion 55 of the heat sink 51 and is fixed by a screw, and the free end is on the side of the lamp body 11. It is to be extended. When the lamp body 11 is installed in the mounting hole H of the ceiling C, the mounting spring 71 presses the peripheral edge of the mounting hole H by the elastic force that the mounting spring 71 tries to spread, so that the ceiling C is in contact with the flange portion 46. And the lamp body 11 is fixed to the ceiling C.
In addition, about the shape of an attachment spring, an attachment position, a number, etc., it is not limited to the thing of this embodiment.

  The power supply unit 61 is a power supply device that supplies power to the light emitting elements included in the light source unit (the light emitting element of the first light source unit 21 and the light emitting element of the second light source unit 31) to light the light emitting elements. The power supply unit 61 is one in which a power supply circuit in which a plurality of electronic components are mounted on a printed wiring board processed into a rectangular shape in a box-shaped power supply case is accommodated. The power supply unit 61 converts an alternating current supplied from an external commercial power source into a predetermined direct current, and supplies the converted current to the light emitting element on the substrate 22 or the light emitting element on the substrate 32. The power supply unit 61 is electrically connected to the terminal block 62 through wiring. The terminal block 63 is disposed on one side surface of the power supply unit 61. When the embedded lighting device 100 is attached to the ceiling C, the power supply unit 61 is electrically connected to the external commercial power source by connecting the terminal block 63 and the external commercial power source on the back side of the ceiling by wiring. The power supply unit 61 is electrically connected to the substrate 22 and the substrate 32 by wiring. The embedded lighting device 100 includes control means (not shown) that controls the lighting state of the first light source unit 21 and the second light source unit 31. By the control means, only the first light source unit 21 can be turned on, only the second light source unit 31 can be turned on, or the first light source unit 21 and the second light source unit 31 can be turned on.

As described above, the first light source unit 21 and the second light source unit 31 are arranged such that the optical axis L1 of the first light source unit 21 and the optical axis L2 of the second light source unit 31 form a right angle or an acute angle. Thereby, the irradiation surface of the 2nd light source part 31 can be formed separately from the irradiation surface of the 1st light source part 21, and the lighting fixture which can irradiate light to two directions is realizable. In this embodiment, light can be irradiated in the lower surface direction irradiated by the first light source unit 21 and the wall surface direction irradiated by the second light source unit 31. Moreover, the embedded lighting fixture 100 of this embodiment has the 1st light source part 21 and the 2nd light source part 31 from which an irradiation direction differs. Thereby, since it is not necessary to provide a space for physically adjusting the position of the light source unit in order to change the irradiation direction, an increase in the size of the lighting fixture is prevented.
Further, when the first light source unit 21 is arranged so as to emit in the lower surface direction, the height of the luminaire is obtained by arranging the second light source unit 31 so that the optical axis L1 and the optical axis L2 form an angle larger than a right angle. This increases the size of the direction. In the case of the embedded lighting device 100 of the present embodiment, the arrangement position of the second light source unit 31 in the height direction is from the first light source unit 21 to the apex, from below to the opening 48 of the reflection unit 41. It is arranged at the height position between. By arranging the first light source unit 21 and the second light source unit 31 so that the optical axis L1 and the optical axis L2 form a right angle or an acute angle, an increase in the height of the lighting fixture, particularly the lamp body 11, is prevented. Further, when the optical axis L1 and the optical axis L2 are arranged so as to have an obtuse angle, a part of the light emitted from the second light source unit 31 is reflected by the portion of the reflection unit 41 and efficiently illuminates the wall surface. It may not be possible. In the embedded lighting fixture 100 of the present embodiment, the light emitted from the second light source unit 31 is not easily blocked by the reflection unit 41 and is efficiently irradiated onto the wall surface.

  The light emitted from the first light source unit 21 and the second light source unit 31 is emitted to the outside through the opening 48 from the first emission port 42 and the second emission port 43 in the reflection unit 41, respectively. Thereby, each light which generate | occur | produces from the 1st light source part 21 and the 2nd light source part 31 can be easily irradiated to two directions via an output port using the one reflection part 41. FIG. Since it can irradiate in two directions without disposing a reflecting part separately, it is not unsightly in appearance and can be installed on the ceiling without difficulty. In addition, since the first light source unit 21 and the second light source unit 31 are not individually provided with the reflection units, the lighting fixture is not increased in size and the number of parts can be reduced. Moreover, the member which comprises the lamp main body 11 can be reduced in size because the 1st light source part 21 and the 2nd light source part 31 are comprised from a light emitting element.

  The center O2 of the first exit port 42 is offset from the center O1 of the reflecting portion 41. Thereby, the 1st light source part 21 and the 2nd light source part 31 can be accommodated comfortably, without enlarging a lighting fixture, especially the lamp main body 11. FIG. Therefore, it is possible to irradiate in two directions without substantially changing the size of the lamp body 11. Moreover, the 1st light source part 21 and the 2nd light source part 31 can be accommodated in the one lamp main body 11, and it is not necessary to accommodate separately, and can reduce a number of parts.

  The panel holder 33 of the second light source unit 31 has a reflection surface 37 that extends along the optical axis L2, and the reflection surface 37a on the first light source unit 21 side is relative to the optical axis L2 relative to the reflection surface 37b on the emission side. The inclination is formed to be small. Thereby, the light irradiated to the reflective surface 37a by the side of the 1st light source part 21 among the lights generated from the 2nd light source part 31 can be reflected toward the downward direction. Therefore, it can prevent that the light irradiated to the reflective surface 37 by the side of the 1st light source part 21 is irradiated to the unexpected direction in the reflective part 41, and can concentrate on the wall surface W side.

  In the luminaire of Patent Document 1, the swing arm must be moved in order to change the irradiation direction. For this reason, it is difficult to change the irradiation direction in a state in which the lighting fixture is attached to a high place such as a ceiling surface. The embedded lighting fixture 100 of the present embodiment includes a control unit that controls the lighting state of the first light source unit 21 and the second light source unit 31, so that only the first light source unit 21 is turned on, or the second light source Only the part 31 can be turned on, and the irradiation direction can be easily changed.

The lighting fixture of the present invention is not limited to the embedded lighting fixture 100 of the present embodiment. For example, it can also be configured as a direct lighting fixture.
In addition, as in the present embodiment, it may be formed in a square shape or a polygonal shape instead of a circular reflecting portion.

DESCRIPTION OF SYMBOLS 11 Lamp main body 21 1st light source part 31 2nd light source part 33 Panel holder 37 Reflective surface 37a of a panel holder 37a Reflective surface of the 1st light source part side 37b Reflective surface of the opening part 41 Reflective part 42 1st output port 43 2nd output Mouth 47 Reflecting surface 48 Opening 100 Implantable lighting device (lighting device)
I virtual plane L1 optical axis L2 optical axis O1 center of reflecting portion O2 center of first exit port θ1 angle formed by optical axis L1 and optical axis L2 θ2 inclination of reflecting surface 37a with respect to optical axis L2 θ3 optical axis L2 of reflecting surface 37b Slope with respect to

Claims (4)

A lighting apparatus comprising a first light source unit having a light emitting element and a second light source unit having a light emitting element,
A reflection portion having an opening and a reflection surface continuing from the opening;
The reflection unit has a first emission port that emits light of the first light source unit, and a second emission port that emits light of the second light source unit,
The first light source unit and the second light source unit are arranged such that the optical axis of the first light source unit and the optical axis of the second light source unit form a right angle or an acute angle,
Light from the first light source unit and the second light source unit is emitted from the opening.   The lighting fixture according to claim 1, wherein the center of the first emission port is offset from the center of the reflecting portion. The second light source unit includes a diffusion panel that covers the second emission port, and a panel holder that is disposed between the light emitting element and the diffusion panel,
The panel holder has a reflecting surface extending along the optical axis,
The lighting apparatus according to claim 1, wherein the reflection surface on the first light source unit side is formed so that an inclination with respect to the optical axis of the second light source unit is smaller than that on the emission side.   The lighting fixture as described in any one of Claim 1 to 3 provided with the control means which controls the lighting state of said 1st light source part and said 2nd light source part.

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