Luminaire

Abstract

To provide a luminaire having a small bore, capable of securing an oscillation angle.SOLUTION: A luminaire 100 which is arranged to be mounted in a ceiling mounting hole formed in a ceiling surface, includes a light source 10, a socket 20 to which the light source 10 is mounted, a supporter 30 storing the light source 10 and the socket 20, a luminaire body 40 supporting the supporter 30 turnably around a horizontal axis, a flame body 50 provided on the lower side of the luminaire body 40 and mounted in the ceiling mounting hole, and a storage body 60 provided on the upper side of the frame body 50 and storing the supporter 30 and the luminaire body 40, and having a diameter enlarged part 61 which is diameter-shrinkable and restored to the original shape after the diameter shrinkage.SELECTED DRAWING: Figure 6

Description

Technical Field

[0001] The present disclosure relates to a lighting fixture that is embedded and disposed in an embedding hole formed in a surface to be disposed on.

Background Art

[0002] Conventionally, for example, a lighting fixture (downlight) that is embedded and disposed in a ceiling embedding hole formed in a ceiling surface is known.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in recent years, the ceiling embedding hole of the downlight has been further reduced in diameter. However, in a lighting fixture, for example, in order to secure a rotation angle (hereinafter, swing angle) of, for example, rotating a light source around a horizontal axis by a predetermined angle or more, a space (a gap between the light source and the fixture body in the radial direction) where the upper part of the light source can be inclined is required above the light source. However, when the diameter of the downlight is reduced, it is difficult to secure the above space.

[0005] Therefore, an object of the present disclosure is to provide a lighting fixture that can secure a swing angle even with a small diameter.

Means for Solving the Problems

[0006] The lighting fixture according to the present disclosure is a lighting fixture that is embedded and disposed in an embedding hole formed in a surface to be disposed, and includes a light source, a socket to which the light source is attached, a holder that houses the light source and the socket, an appliance body that rotatably supports the holder around a horizontal axis, a frame body that is provided on the lower side of the appliance body and is embedded in the embedding hole, and a housing body that is provided on the upper side of the frame body, houses the holder and the appliance body, and has an expanding diameter portion that can reduce the diameter and restore to the original shape after the diameter reduction.

Advantages of the Invention

[0007] According to the lighting fixture of the present disclosure, it is possible to secure the head swing angle even with a small diameter.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Embodiments for Carrying Out the Invention

[0009] Hereinafter, an example of an embodiment of a lighting fixture 100 will be described with reference to the drawings. Note that each of the embodiments described below shows an example of the present disclosure. Therefore, numerical values, components, arrangements and connection forms of components, etc. shown in the following embodiments are merely examples and are not intended to limit the present disclosure. Thus, among the components in the following embodiments, components not described in the independent claims indicating the highest-level concept of the present disclosure are described as optional components.

[0010] Note that each figure is a schematic diagram and is not necessarily drawn precisely. In each figure, substantially the same components are denoted by the same reference numerals, and redundant descriptions may be omitted or simplified. Also, in this specification, the terms "upper" and "lower" do not necessarily refer to the upward (vertically upward) and downward (vertically downward) directions in an absolute spatial sense.

[0011] Also, the substantially cylindrical holding body 30, the fixture body 40, the frame body 50, and the housing body 60 may be described according to the axial direction (vertical direction), the circumferential direction, or the radial direction.

[0012] [Overall Configuration of Lighting Fixture] The overall configuration of the lighting fixture 100 will be described with reference to FIGS. 1 to 3.

[0013] The lighting fixture 100 is, for example, a downlight that irradiates light downward (such as the floor, ground, wall, etc.). The lighting fixture 100 is, for example, disposed on the ceiling surface of a building. The lighting fixture 100 of the present embodiment is a ceiling-embedded type lighting fixture, and is, for example, embedded and disposed in a ceiling-embedded hole formed in the ceiling surface. The ceiling-embedded hole of the present embodiment is circular in plan view. Also, the lighting fixture 100 of the present embodiment is a small-diameter lighting fixture disposed in a small-diameter ceiling-embedded hole (for example, 75 mmΦ). However, the lighting fixture of the present disclosure may be disposed on an attachment surface other than the ceiling surface. Also, the present disclosure may be applied to lighting fixtures other than ceiling-embedded type lighting fixtures, and may be applied to lighting fixtures other than downlights.

[0014] The lighting fixture 100 includes a light source 10, a socket 20 in which the light source 10 is mounted, a holder 30 that houses the light source 10 and the socket 20, a fixture body 40 that houses the holder 30 and rotatably supports the holder 30 around a horizontal axis, and a frame body 50 that is provided on the lower side of the fixture body 40, rotatably supports the fixture body 40 around a vertical axis, and is embedded in a ceiling embedding hole.

[0015] Further, the lighting fixture 100 includes a housing 60 that is provided above the frame body 50, houses the holder 30 and the fixture body 40, and has a diameter-reducing portion 61 that can reduce the diameter and restore to the original shape after the diameter reduction, an internal power supply line 71 that supplies power to the socket 20, a terminal block 70 to which an external power supply line (not shown) for supplying power from the outside is connected, a terminal block base 80 on which the terminal block 70 is placed on the side of the ceiling surface where the lighting fixture 100 is embedded, and a mounting spring 90 for fixing the lighting fixture 100 to the ceiling embedding hole.

[0016] [Light source unit] The light source 10 will be described with reference to FIGS. 2 and 4.

[0017] The light source 10 is, for example, an LED (Light Emitting Diode) light source. The light source 10 includes a housing 11, a light emitting portion 12 held by the housing 11, a lens 13 disposed below the light emitting portion 12, two power supply pins 14 that receive power for causing the light emitting portion 12 to emit light, and a drive circuit 15 for driving the light emitting portion 12.

[0018] The housing 11 is a member that forms the outer shell of the light source 10. The housing 11 is made of resin or metal and is formed in a substantially cylindrical shape. The housing 11 holds the light emitting portion 12 and the lens 13. Further, a drive circuit 15 is housed inside the housing 11. A convex portion 11A protruding upward is formed on the top surface of the housing 11. The convex portion 11A is formed in a substantially cylindrical shape. A capacitor 16, which is a part of the drive circuit 15, is housed in the convex portion 11A. By adopting such a configuration, the capacitor 16, which is a high-temperature component compared to other components of the drive circuit 15, can be efficiently cooled.

[0019] The light emitting unit 12 emits light by the power supplied from the drive circuit 15. The light emitting unit 12 emits, for example, white light. The light emitting unit 12 is constituted by, for example, LEDs. The light emitting unit 12 includes a substrate and one or more LED elements mounted on the substrate. The LED element may be a surface mount type LED package or an LED chip.

[0020] The lens 13 is an optical member having translucency and transmits the light emitted from the light emitting unit 12. Further, the lens 13 is a condenser lens that condenses the light emitted from the light emitting unit 12 and is, for example, a Fresnel lens. The lens 13 is constituted by a translucent material having translucency and is constituted by, for example, a transparent resin material such as acrylic or polycarbonate, or a glass material.

[0021] The power supply pin 14 is a conductive pin and receives power for causing the light emitting unit 12 to emit light from outside the light source 10. The power supply pin 14 and the drive circuit 15 are electrically connected by an electric wire (not shown) housed in the housing 11. The power supply pin 14 is a pin having a T-shaped cross section with a disk-shaped enlarged diameter portion at the tip. Also, the interval between the two power supply pins 14 is the same as the interval P between the terminal portions 25B as pin mounting portions, which will be described in detail later.

[0022] Further, the power supply pin 14 is a connection pin for connecting the light source 10 to the socket 20. The power supply pin 14 is electrically connected to the socket 20. Although details will be described later, the power supply pin 14 is locked to the terminal portion 25B as the pin mounting portion of the connection terminal 25 provided on the socket 20 and is electrically and mechanically connected to the terminal portion 25B. Also, when the power supply pin 14 is connected to the terminal portion 25B, the light source 10 is held by the socket 20.

[0023] The drive circuit 15 is a power supply circuit for causing the light-emitting unit 12 to emit light, and supplies predetermined power to the light-emitting unit 12. The drive circuit 15 has a capacitor 16 which is a high-temperature component as compared with other components of the drive circuit 15. The drive circuit 15 converts, for example, alternating current power (for example, commercial alternating current power of AC100V) received at the power supply pin 14 into direct current power, and supplies the direct current power to the light-emitting unit 12.

[0024] [Socket] The socket 20 will be described with reference to FIGS. 2, 4 to 6.

[0025] As shown in FIGS. 2, 4 to 6, the socket 20 is a member to which the light source 10 is attached as described above. Further, the socket 20 is a member that supplies power to the light source 10. The socket 20 is housed in a holder 30 described later. The socket 20 has a housing 21 and two connection terminals 25, the details of which will be described later.

[0026] As shown in FIGS. 4 to 6, the housing 21 is a member that forms the outer shell of the socket 20. The housing 21 is made of, for example, resin and is formed in a ring shape having a top surface. The housing 21 has an upper cover 21A that covers the upper side of the housing 21 and a lower cover 21B that covers the lower side of the housing 21. Two long holes 22 and a recess 23, the details of which will be described later, are formed in the lower cover 21B. The long holes 22 are formed in a substantially arc shape on the bottom surface of the housing 21. The long holes 22 have a pin insertion hole 22A, a pin mounting hole 22B, and a pin guiding hole 22C, the details of which will be described later.

[0027] As shown in FIG. 5, the pin insertion hole 22A is formed with an enlarged diameter at one end of the long hole 22. The pin mounting hole 22B is formed at the other end of the long hole 22 and is formed at a position where the terminal portion 25B as the pin mounting portion of the connection terminal 25 described later is visible. The pin guiding hole 22C communicates the pin insertion hole 22A and the pin mounting hole 22B and is formed in an arc shape along the pin guiding portion 25C of the connection terminal 25 described later.

[0028] Here, when the light source 10 is attached to the socket 20, the light source 10 is inserted into the socket 20 and rotated with respect to the socket 20, whereby the light source 10 is attached to the socket 20. When the light source 10 is inserted into the socket 20, the power supply pin 14 is inserted into the pin insertion hole 22A of the long hole 22. When the light source 10 is rotated with respect to the socket 20, the power supply pin 14 is guided by the pin guide hole 22C of the long hole 22, and after the light source 10 is rotated with respect to the socket 20, the power supply pin 14 reaches the pin mounting hole 22B.

[0029] The recess 23 is formed in the substantially central portion of the socket 20. The recess 23 is formed in a circular shape in plan view. When the light source 10 is attached to the socket 20, the convex portion 11A of the housing 11 of the light source 10 is fitted into the recess 23. Thereby, the capacitor 16, which is a component of the drive circuit 15 of the light source 10, can be accommodated in the substantially central portion of the socket 20, and the space occupied by the light source 10 and the socket 20 can be reduced.

[0030] As shown in FIGS. 5 and 6, the connection terminal 25 is a terminal that supplies the power supplied from the internal power line 71 to the power supply pin 14. The connection terminal 25 is a member made of a conductive metal. The connection terminal 25 is accommodated in the upper cover 21A. The connection terminal 25 is accommodated at a position corresponding to the long hole 22 in the housing 21. The connection terminal 25 has a pin introduction portion 25A, a terminal portion 25B as a pin mounting portion, and a pin guide portion 25C, the details of which will be described later.

[0031] The pin introduction portion 25A is disposed in the middle of the pin guide hole 22C of the long hole 22 and is the portion into which the power supply pin 14 is introduced while the light source 10 is being inserted into the socket 20 and rotated.

[0032] The terminal part 25B as the pin mounting part is arranged at a position corresponding to the pin mounting hole 22B of the long hole 22 as described above, and is the part where the power supply pin 14 is locked after the light source 10 is rotated with respect to the socket 20. The terminal part 25B holds the power supply pin 14 and is electrically connected to the power supply pin 14. Further, the terminal part 25B is electrically connected to the internal power line 71, and the internal power line 71 and the power supply pin 14 are electrically connected via the terminal part 25B. Further, when the power supply pin 14 is locked to the terminal part 25B, the light source 10 is held by the socket 20.

[0033] Here, the terminal part 25B as the pin mounting part is arranged such that the interval P between the terminal parts 25B is 25 to 40 mm, and preferably the interval P between the terminal parts 25B is 25 to 30 mm. Thereby, when the light source 10 is mounted on the socket 20, the fixing stability of the light source 10 with respect to the socket 20 can be improved.

[0034] Further, the terminal part 25B as the pin mounting part is arranged such that when the test finger of the JIS standard contacts the pin mounting hole 22B of the long hole 22, the test finger does not contact the terminal part 25B. Thereby, accidents such as electric shock when removing the light source 10 from the socket 20 or attaching (mounting) the light source 10 to the socket 20 can be prevented.

[0035] The pin guide part 25C is arranged at a position corresponding to the pin guide hole 22C of the long hole 22 as described above, and is the part where the power supply pin 14 is guided when the light source 10 is rotated with respect to the socket 20.

[0036] [Holder] Again, the holder 30 will be described with reference to FIGS. 2, 3, and 7.

[0037] As described above, the holder 30 is a member that houses the light source 10 and the socket 20. Also, the holder 30 is supported inside the appliance body 40 so as to be rotatable around a horizontal axis. The holder 30 is made of, for example, resin. The holder 30 has a cylindrical main body 31, a top surface portion 32 to which the socket 20 is fixed on the lower surface (inner surface), and a rotation shaft 33 that protrudes horizontally at the lower end portion of the main body 31 and at the radially outer end portion.

[0038] Note that since the rotation shaft 33 of the holder 30 is offset from the center of the holder 30 in a plan view, the holder 30 rotates from the vertical direction to a predetermined angle on one side (see FIG. 3). However, as will be described in detail later, since the holder 30 can rotate around a vertical axis together with the appliance body 40, it can rotate around a horizontal axis from the vertical direction to a predetermined angle on the other side.

[0039] [Appliance body] Again, the appliance body 40 will be described with reference to FIGS. 2, 3, and 7.

[0040] As described above, the appliance body 40 is a member that houses the holder 30 and supports the holder 30 so as to be rotatable around a horizontal axis. Also, the appliance body 40 is supported by a frame body 50 provided below the appliance body 40 so as to be rotatable around a vertical axis. The appliance body 40 is a metal member such as aluminum, for example, and is formed by die casting. The appliance body 40 is formed in a cylindrical shape.

[0041] The appliance body 40 has a holder support portion 42 and a frame body support portion 44, the details of which will be described later. The holder support portion 42 is formed inside the appliance body 40 and rotatably supports the rotation shaft 33 of the holder 30. The frame body support portion 44 is formed at the lower end portion of the appliance body 40 and is rotatably supported around a vertical axis by an appliance body support portion 53, which will be described later.

[0042] Here, for example, in a lighting fixture where the fixture body covers the holding body, there is a risk of interfering with the heat insulating material that covers the fixture body during rotation of the fixture body and shifting the heat insulating material in the ceiling space. However, according to the lighting fixture 10 of the present embodiment, since the fixture body 40 is configured to rotate inside a housing 60, which will be described later, the above problem is avoided.

[0043] [Frame body] Again, with reference to FIGS. 1 to 3 and FIG. 7, the frame body 50 will be described.

[0044] As described above, the frame body 50 is a member that rotatably supports the fixture body 40 around the vertical axis and is embedded in the ceiling embedding hole. The frame body 50 is a metal member such as aluminum, for example, and is formed by die casting. The frame body 50 is formed in a substantially cylindrical shape having a flange portion 51 at the lower end. The frame body 50 has a spring holding portion 52 and a fixture body support portion 53, which will be described in detail later.

[0045] The spring holding portion 52 is a flat surface portion formed on the side circumferential surface of the frame body 50 and holds the mounting spring 90. A pair of engaging portions 52A with which the mounting spring 90 engages are formed on the spring holding portion 52. The engaging portion 52A is formed in an L shape that protrudes outward from the spring holding portion 52 in a cross-sectional view perpendicular to the vertical direction and is bent toward the other engaging portion 52A.

[0046] The fixture body support portion 53 is formed at the upper end of the frame body 50 and may rotatably support the frame support portion 44 of the fixture body 40 around the vertical axis via, for example, a spacer. The spacer is made of, for example, resin and may be formed in an annular shape. According to the spacer, it is possible to avoid the generation of dust and the like due to sliding between the metal frame body 50 and the metal fixture body 40, or to achieve smooth sliding.

[0047] [Housing] With reference to FIGS. 1 to 3 and FIG. 7, the housing 60 will be described.

[0048] As described above, the housing 60 is provided above the frame body 50, houses the instrument main body 40, and is a member having a diameter-expanded portion 61 that can be reduced in diameter and restored to its original shape after the diameter reduction. According to the housing 60, although details will be described later, even if the diameter is small, the rotation angle (hereinafter, the swing angle) when rotating the light source 10 around the horizontal axis can be ensured.

[0049] In recent years, the ceiling recessed holes of downlights have been further reduced in diameter. However, in a lighting fixture, for example, in order to ensure a rotation angle (hereinafter, the swing angle) of a light source around the horizontal axis of a predetermined angle or more, a space (the gap between the light source and the instrument main body in the radial direction) where the upper part of the light source can be inclined is required above the light source. However, when the diameter of the downlight is reduced, it has been difficult to secure the above space.

[0050] According to the housing 60 of the present embodiment, by reducing the diameter of the diameter-expanded portion 61 when inserting it into the ceiling recessed hole, it can be inserted even into a small-diameter ceiling recessed hole. Further, since the diameter-expanded portion 61 is restored to its original shape after the diameter reduction, a space where the upper part of the light source 10 can be inclined can be secured. Thereby, even if the diameter is small, the swing angle of the light source 10 can be ensured. Also, it is possible to prevent dust from entering the room from above the ceiling.

[0051] The housing 60 is formed in a substantially hexagonal shape in a side view and is formed in a substantially cylindrical shape when the diameter is reduced. Also, the housing 60 is formed in a circular shape in a plan view. The housing 60 has a leaf spring 62, a top surface portion 63, and a cover 64, the details of which will be described later.

[0052] The leaf spring 62 is a member that forms the framework of the housing 60. The leaf spring 62 is an elastic member and is formed, for example, by a long metal plate. The leaf spring 62 is formed in a "U-shape" that is bent at the bent portion 62A in a side view. The bent portion 62A is a portion that forms the enlarged diameter portion 61 of the housing 60. Three leaf springs 62 are arranged, for example, at every approximately 120° in a plan view. The lower end portion of the leaf spring 62 is fixed to the frame body 50. On the other hand, the upper end portion of the leaf spring 62 is fastened and fixed to the top surface portion 63 described later, for example, by screws.

[0053] When the bent portion 62A of the leaf spring 62 is pressed from the outside, the leaf spring 62 deforms from the "U-shape" to a straight shape and then recovers to the "U-shape" by the elastic force. As a result, the enlarged diameter portion 61 of the housing 60 can be reduced in diameter and can recover after the diameter reduction.

[0054] The top surface portion 63 is a member that constitutes the top surface of the housing 60. The top surface portion 63 is, for example, a metal member and is formed in a disk shape. A through hole through which the internal power line 71 passes is formed in the top surface portion 63. Also, the leaf springs 62 are fixed to the edge portion of the top surface portion 63 at every approximately 120°.

[0055] The cover 64 is a member that covers the outside of the leaf spring 62 and is a member that follows the deformation of the leaf spring 62 from the "U-shape" to a straight shape described above. The cover 64 is a member having flexibility and is formed, for example, by silicone rubber. The cover 64 may be fixed to the outer surface (the radially outer surface) of each leaf spring 62.

[0056] [Terminal block] The terminal block 70 will be described with reference to FIGS. 1 to 3.

[0057] As described above, the terminal block 70 is a member to which an internal power line 71 for supplying power to the socket 20 and an external power line for supplying power from the outside are electrically connected. Further, the terminal block 70 is placed on a terminal block base 80 described later. With such a configuration, for example, compared with a lighting fixture having a terminal block arranged above the socket, the height of the lighting fixture 100 can be designed to be smaller.

[0058] [Terminal block base] The terminal block base 80 will be described with reference to FIGS. 1 to 3.

[0059] The terminal block base 80 is a member on which the terminal block 70 is placed on the back side of the ceiling surface (the side where the lighting fixture 100 is embedded) described above. The terminal block base 80 is made of, for example, metal and is formed by press working. According to the terminal block base 80, an insulation distance between the terminal block 70 and the ceiling surface can be ensured.

[0060] [Mounting spring] The mounting spring 90 will be described with reference to FIGS. 1 to 3.

[0061] As described above, the mounting spring 90 is a member for fixing the lighting fixture 100 to the ceiling embedding hole. In the present embodiment, for example, three mounting springs 90 are held by the spring holding portion 52 of the frame body 50. The mounting spring 90 is an elastic member and is, for example, a leaf spring formed of a long metal plate. When fixing the lighting fixture 100 to the ceiling embedding hole, the flange portion 51 of the frame body 50 is locked to the ceiling surface, and the mounting spring 90 is elastically deformed between the spring holding portion 52 of the frame body 50 and the inner surface of the ceiling embedding hole, and the lighting fixture 100 is fixed to the ceiling embedding hole using the restoring force of the mounting spring 90.

[0062] [Summary] The present disclosure will be further described by the following embodiments. Configuration 1: A lighting fixture embedded and disposed in an embedding hole formed in a surface to be disposed, a light source, a socket on which the light source is mounted, A holder that houses the light source and the socket, An appliance body that rotatably supports the holder around a horizontal axis, A frame provided on the lower side of the appliance body and embedded in the embedding hole, A housing body provided on the upper side of the frame, housing the holder and the appliance body, and having an expanding diameter portion that can be reduced in diameter and restored to its original shape after the diameter reduction, Comprising A lighting fixture. Configuration 2: The lighting fixture according to Configuration 1, The housing body has a plurality of leaf springs formed by being refracted in a U shape in a side view, and a cover having flexibility and covering the plurality of leaf springs, A lighting fixture. Configuration 3: The lighting fixture according to Configuration 1 or 2, The appliance body is rotatably supported around a vertical axis with respect to the frame, A lighting fixture. Configuration 4: The lighting fixture according to any one of Configurations 1 to 3, The light source has two power supply pins, The socket has two pin mounting portions on which the two power supply pins are respectively mounted, The distance between the pin mounting portions is 25 to 40 mm, A lighting fixture. Configuration 5: The lighting fixture according to any one of Configurations 1 to 4, The distance between the pin mounting portions is 25 to 30 mm, A lighting fixture.

[0063] As described above, the present disclosure has been described based on the embodiments, but the present disclosure is not limited to the above embodiments. In addition, forms obtained by applying various modifications that those skilled in the art can conceive to each embodiment, and forms realized by arbitrarily combining the components and functions in each embodiment without departing from the spirit of the present disclosure are also included in the present disclosure.

Description of Symbols

[0064] 10 Light source, 11 Housing, 11A Protrusion, 12 Light-emitting part, 13 Lens, 14 Power supply pin, 15 Drive circuit, 16 Capacitor, 20 Socket, 21 Housing, 21A Upper cover, 21B Lower cover, 22 Long hole, 22A Pin insertion hole, 22B Pin mounting hole, 22C Pin guiding hole, 23 Recess, 25 Connection terminal, 25A Pin introduction part, 25B Terminal part, 25C Pin guiding part, 30 Holder, 31 Main body, 33 Rotation shaft, 40 Appliance main body, 41 Top surface part, 42 Holder support part, 44 Frame support part, 50 Frame, 51 Flange part, 52 Spring holding part, 52A Engagement part, 53 Appliance main body support part, 60 Container, 61 Enlarged diameter part, 62 Leaf spring, 62A Bent part, 63 Top surface part, 64 Cover, 70 Terminal block, 71 Internal power line, 80 Terminal block base, 90 Mounting spring, 100 Lighting fixture

Claims

1. A lighting fixture embedded and disposed in an embedding hole formed in a disposed surface, comprising: a light source; a socket to which the light source is attached; a holder that houses the light source and the socket; a fixture body that rotatably supports the holder around a horizontal axis; a frame provided below the fixture body and embedded in the embedding hole; a housing provided above the frame, housing the holder and the fixture body, and having an expanding portion that can be reduced in diameter and restored to its original shape after the diameter reduction; and a lighting fixture.

2. The lighting fixture according to Claim 1, wherein the housing has a plurality of leaf springs formed by being refracted in a U shape in a side view, and a cover having flexibility and covering the plurality of leaf springs. a lighting fixture.

3. The lighting fixture according to Claim 2, wherein the fixture body is rotatably supported around a vertical axis with respect to the frame. a lighting fixture.

4. The lighting fixture according to any one of Claims 1 to 3, wherein the light source has two power supply pins, the socket has two pin mounting portions to which the two power supply pins are respectively mounted, and the distance between the pin mounting portions is 25 to 40 mm. a lighting fixture.

5. The lighting fixture according to Claim 4, wherein the distance between the pin mounting portions is 25 to 30 mm. a lighting fixture.

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