JP2012216306A - Lamp device and lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lamp device, and a lighting fixture using the same, with different light distribution characteristics easily formed.SOLUTION: The lamp device 1 is provided with a device body 4 equipped with a cylindrical chassis 23 having an opening 26 at one end side 23a and a flat-plate part 27 at the other end side 23b, a cylindrical protruded body 24 formed in protrusion outward from a center part of the flat-plate part 27 to the other end side, and an insertion-through part 25 formed inside the flat-plate part 27 communicated with the inside of the protruded body 24, a light-emitting body 2 arranged inside the protruded body 24 for causing emission light to be emitted from the opening 26 of the chassis 23, a lens 3 arranged so as to be properly faced to the light-emitting body 2 with a focal distance varied in accordance with voltage values, a power supply device 6 formed so as to supply power to the light-emitting body 2, and an electric connection means 7 for impressing voltage on the lens 3 from the power supply device 6.

Description

  Embodiments described herein relate generally to a lamp device in which emitted light of a light emitter is controlled and a lighting fixture using the lamp device.

  Conventionally, as a flat lamp device, a lamp device using a GX53 type base has been provided. In some lamp devices, light emitted from the lamp device is distributed at a narrow angle by a light control body to obtain a light distribution suitable for downlights and spotlights (see, for example, Patent Document 1). This prior art lamp device has an annular abutting surface provided with a pair of lamp pins and a projecting portion projecting from the center side of the abutting surface to one surface side, and an LED on the top side inner wall surface of the projecting portion. Is mounted, a flat lamp device main body (housing) that emits LED light from at least the other surface side, and a light control body having a cylindrical reflection surface portion is provided in the lamp device main body. On the other hand, it is arrange | positioned in the other surface side direction.

  That is, the module substrate is fixed in a state where the contact surface of the substrate is in thermal contact with the top side inner wall surface of the protruding portion so that the LED is positioned at the center of the lamp device. Thereby, the heat which LED generate | occur | produces is thermally radiated from the protrusion part to the fixture main body of a lighting fixture, and is radiated. And the lighting device which lights LED is accommodated and arrange | positioned by the cyclic | annular space part between a lamp device main body and the outer peripheral surface of the reflective surface part of a light control body.

JP 2010-262781 (page 5, FIG. 1)

  When the module substrate is arranged on the inner wall surface on the top side of the protruding portion, a narrow angle light distribution, a wide angle light distribution, etc. are formed by a light diffusing cover or a light diffusing cover arranged in the opening of the housing. Therefore, a member corresponding to the light distribution is required, and management of the number of parts and the model of the lamp device is required. Further, every time the usage environment such as the size and height of the installation space of the lamp device is different, the user has to select a lamp device according to the usage environment.

  An embodiment of the present invention aims to provide a lamp device in which different light distribution characteristics are easily formed, and a lighting fixture using the lamp device.

  The lamp device of the embodiment includes a device main body, a light emitter, a lens, a power supply device, and electrical connection means.

  The apparatus main body is formed having a housing, a protrusion, and an insertion portion. The housing is formed in a cylindrical shape having an opening at one end and a flat plate at the other end. The protruding body protrudes in a cylindrical shape from the central portion of the flat plate portion to the other end side. The insertion portion is formed inside the flat plate portion so as to communicate with the inside of the protrusion.

  The light emitter is disposed in the projecting body so that the emitted light is emitted from the opening of the housing of the apparatus main body.

  The focal length of the lens is variable depending on the voltage value, and the lens is disposed so as to face the light emitter.

  The power supply device is formed to supply power to the light emitter. And it is arrange | positioned in the housing | casing of an apparatus main body.

  The electrical connection means applies a voltage from the power supply device to the lens.

  According to the embodiment of the present invention, a voltage is applied to the lens by the voltage connecting means, and the focal length of the lens is varied according to the voltage value, so that the emission direction of the emitted light from the lens can be varied. Thus, different light distributions such as narrow-angle light distribution and wide-angle light distribution can be formed depending on whether or not voltage is applied to the lens.

It is a schematic front view of the lamp device which shows the 1st Embodiment of this invention. Similarly, a lamp device is shown, (a) is a schematic top view, and (b) is a schematic bottom view. Similarly, it is a schematic front sectional view of the lamp device. Similarly, it is explanatory drawing which shows the characteristic change of a lens, (a) is explanatory drawing when there is no voltage application, (b) is explanatory drawing at the time of voltage application. It is a schematic perspective view of the lighting fixture which shows the 2nd Embodiment of this invention. Similarly, it is a partially cutaway schematic front view of a lighting fixture.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. First, a first embodiment of the present invention will be described.

  The lamp device 1 of this embodiment is configured as shown in FIGS. In FIG. 3, the lamp device 1 includes a light emitter 2, a lens 3, a device main body 4, a reflector 5, a power supply device 6, and electrical connection means 7.

  The light emitter 2 is formed to have a flat substrate 8, a plurality of LED bare chips 9 provided on one surface 8 a of the substrate 8, and a sealing resin 10 that covers the LED bare chips 9. The substrate 8 is made of, for example, an aluminum (Al) plate and is formed in a substantially rectangular shape. The LED bare chip 9 is mounted on one surface 8a via an insulating layer (not shown) to form a wiring pattern (not shown). The LED bare chips 9 are connected in series by a wiring pattern. Further, a connector 11 is provided on one surface 8 a of the substrate 8, and an output cord 12 of the power supply device 6 is connected to the connector 11.

  The LED bare chip 9 is mounted on one surface 8a of the flat substrate 8 so as to be provided in a planar shape, and a plurality of the LED bare chips 9 are mounted in a matrix, for example. The LED bare chip 9 emits blue light, for example. On one surface 8a of the substrate 8, a plurality of LED bare chips 9 are surrounded, and for example, a bank 13 made of silicone resin is formed in a rectangular shape. The inside of the bank 13 is filled with the sealing resin 10 to fill the LED bare chip 9. The outer surface of the sealing resin 10 is formed in a flat shape.

  The sealing resin 10 is a translucent silicone resin, for example, and a yellow phosphor 14 is mixed therein. When the blue light emitted from the LED bare chip 9 is incident, the yellow phosphor 14 converts the wavelength of the blue light into yellow light. The yellow light and the blue light emitted from the LED bare chip 9 are emitted from the outer surface of the sealing resin 10 and mixed color (mixed light), whereby white light is emitted from the light emitter 2. The outer surface of the sealing resin 8 is a light emitting surface of the light emitter 2.

  The lens 3 is a liquid lens whose focal length is variable depending on an applied voltage value, and is provided to face the light emitter 2. A support member 15 is fixed to the substrate 8 of the light emitter 2 with, for example, an adhesive. The lens 3 is attached so as to be fitted into the support member 15. The lead wire 16 is connected to the power supply device 6, and a voltage is applied from the power supply device 6.

  As shown in FIG. 4, in the lens 3, oil 20 and an aqueous solution 21 are sealed in a container 19 in which a space between circular transparent glasses 17 and 17 is sealed with a sealing member 18. The sealing member 18 is provided with a pair of electrodes 22a and 22b. Lead wires 16 are connected to the electrodes 22a and 22b, respectively. When no voltage is applied to the pair of electrodes 22a and 22b, the boundary surface between the oil 20 and the aqueous solution 21 in the container 19 is substantially flat as shown in FIG.

  When a voltage is applied to the pair of electrodes 22a and 22b, the shape of the boundary surface between the oil 20 and the aqueous solution 21 changes as shown in FIG. 4B, and the boundary surface becomes a lens. Further, the electrostatic force of the oil 20 and the aqueous solution 21 is changed by the change of the voltage value, and the boundary surface is changed by the change of the electrostatic force, thereby changing the focal length. Therefore, by applying a voltage to the lens 3, the emitted light of the light emitter 2 is refracted by the lens 3 and emitted from the lens 3. Furthermore, by changing the voltage value, the shape of the boundary surface between the oil 20 and the aqueous solution 21 is changed, and the emission direction from the lens 3 is varied. In the present embodiment, by applying a voltage to the lens 3, the emitted light of the light emitter 2 is condensed on the center side of the opening 26 of the apparatus body 4 (on the side of the center 44 c of a protective cover 44 described later). As the lens 3, a liquid lens manufactured by France-based Vanoptic can be used.

  The apparatus main body 4 is formed having a housing 23, a projecting body 24, and an insertion part 25. The casing 23 and the projecting body 24 are integrally formed of a synthetic resin such as polybutylene terephthalate (PBT) resin.

  The housing | casing 23 is formed in the cylindrical shape which has the opening part 26 in the one end side 23a, and the flat plate part 27 in the other end side 23b. The protruding body 24 is formed in a substantially cylindrical shape protruding from the central portion of the flat plate portion 27 to the other end side (outward). The insertion portion 25 is formed in a circular shape inside the flat plate portion 27 and communicates with the inside of the projecting body 24. A pair of lamp pins 28 and 28 (only one is shown in the figure) adjacent to the protrusion 24 are disposed on the upper surface 27 a of the flat plate portion 27.

  Further, a heat radiating member 29 formed by, for example, aluminum die casting is attached to the upper surface of the projecting body 24. The heat radiating member 29 is provided so as to face the insertion portion 25. On the inner surface 29b side of the heat dissipating member 29, a thick and rectangular parallelepiped mounting portion 30 is formed to project. The light emitter 2 is attached to the attachment portion 30 in surface contact with a screw (not shown) through an insulating material (not shown).

  Then, a substantially rectangular parallelepiped fixing portion 31 is formed from the mounting portion 30 toward the outer peripheral edge of the heat radiating member 29. A key portion 32 is provided at the tip of the fixed portion 31. The fixing portion 31 is provided with a screw hole 33. As shown in FIG. 2A, three fixing portions 31 are formed at intervals of 120 ° with respect to the center 29 c of the heat radiating member 29.

  As shown in FIG. 3, a cylindrical dowel 35 having a stepped through hole 34 is formed on the upper surface 27 a of the flat plate portion 27 so as to abut on the fixed portion 31. A screw 36 inserted into the through hole 34 from the lower surface 27 b of the flat plate portion 27 is screwed into the screw hole 33 of the fixing portion 31. Thereby, the heat radiating member 29 is attached to the protrusion 24. The protruding body 24 is cut out at a portion corresponding to the fixing portion 31.

  The heat dissipating member 29 slightly protrudes in the normal direction of the outer peripheral surface from the outer peripheral surface of the projecting body 24, and the key portion 32 further protrudes. The heat dissipation member 29 substantially seals the protruding body 24. The key portion 32 is attached by being inserted into a key groove of a socket to which the lamp device 1 is attached.

  A heat radiating sheet (not shown) is disposed on the upper surface 29 a of the heat radiating member 29. The upper surface 29a side of the screw hole 33 of the heat dissipation member 29 is closed by the heat dissipation sheet.

  The pair of lamp pins 28, 28 are made of metal, are formed in a substantially cylindrical shape whose top side is formed in a substantially hemispherical shape, are adjacent to the projecting body 24, and project upward from the upper surface 27 a of the flat plate portion 27. Is provided. The lamp pins 28, 28 are provided corresponding to power input terminals 38, 38 (only one is shown in the figure) provided on the circuit board 37 of the power supply device 6. It is provided at a location located in the vicinity of the power input terminals 38, 38 when stored in the housing 23.

  On the lower surface 27b of the flat plate portion 27, a pair of dowels 39 having through holes (not shown) projecting downward with a small projecting length is formed. A lamp pin 28 is press-fitted and attached to the dowel 39. The lamp pin 28 is inserted through the lead wire 40 connected to the power input terminal 38, and the lead wire 40 is soldered on the top side. Thus, the pair of lamp pins 28, 28 are electrically connected to the pair of power input terminals 38, 38 of the power supply device 6.

  Further, on the lower surface 27 b of the flat plate portion 27, a cylindrical protruding portion 41 that protrudes downward is formed in the circumference of the insertion portion 25. The insertion part 25 is formed to be slightly smaller than the circular central opening 42 of the circuit board 37. The projecting portion 41 is provided with a notch (not shown) through which the output cord 12 and the lead wire 16 of the power supply device 6 are inserted.

  As shown in FIG. 1, triangular recesses 43 are formed at regular intervals on the outer peripheral surface of the housing 23 on the flat plate portion 27 side in order to increase the heat dissipation area.

  In FIG. 3, a protective cover 44 is disposed in the opening 26 of the housing 23 of the apparatus main body 4. The protective cover 44 is molded from, for example, a polycarbonate (PC) resin having translucency. The outer surface 44a is a flat surface and is formed in a circular shape. On the inner surface 44b, a plurality of raised solids 45 along the inner surface 26b of the opening 26 are provided intermittently. Some of the raised solids 45 are provided with a locking claw 46, and the locking claw 46 is locked in a locking groove 47 formed on the inner surface 26 b of the opening 26. Thereby, the protective cover 44 is attached to the opening 26 of the apparatus main body 4. The protective cover 44 is attached so as to substantially close the inside of the apparatus main body 3.

  Further, on the peripheral side of the outer surface 44 a of the protective cover 44, rectangular finger-shaped portions 48, 48 are formed to project. As shown in FIG. 2 (b), the finger-hanging portions 48, 48 are provided with 180 ° rotational symmetry. A triangular mark 49 is provided on the peripheral side of the outer surface 44a to display the mounting position on the lighting fixture.

  In FIG. 3, the reflector 5 is disposed in the apparatus main body 4. The reflector 5 is formed by, for example, aluminum die casting and has a circular truncated conical shape with a diameter decreasing continuously and stepwise from the one end side 5a toward the other end side 5b. The flange portion 50 is formed. The reflector 5 has a circular one end side opening 51 on one end side 5a and a circular other end side opening 52 on the other end side 5b, and an inner surface 5d thereof is formed on the reflection surface.

  The other end side 5 b of the reflector 5 is inserted through the central opening 42 of the circuit board 37 of the power supply device 6 and is inserted into the protruding body 24. Then, by attaching the cover 44 to the opening 26 of the housing 23, the lens 3 is accommodated on the other end side opening 52 side, the one end side opening 51 is positioned on the opening 26, and the flange portion 50 is located on the cover 44. It is in contact with the inner surface 44b.

  The power supply device 6 includes a lighting circuit 54 formed by a circuit board 37 and a lighting circuit component 53 mounted on the circuit board 37. The circuit board 37 is made of, for example, a glass epoxy material, is formed in a substantially circular shape, and is provided with a circular central opening 42 having a notch (not shown) at the center thereof. On one surface 37a around the central opening 42, lighting circuit components 43 made up of many types and many electronic components such as resistors R1 and R2, a capacitor C1, and a transformer T1 are mounted. The other surface 37b of the circuit board 37 is a solder surface of the lighting circuit component 53, and a small surface mount component such as the switching element Q1 is mounted thereon.

  Further, the output cord 12 and the lead wire 16 are led out from the circuit board 37 and connected to the connector 11 of the light emitter 2 and the electrodes 22a and 22b of the lens 3, respectively. Further, the circuit board 37 is connected to the switch 7 of the electrical connection means by a lead wire 55.

  A lighting circuit 54 is formed by a wiring pattern (not shown) formed on the lighting circuit component 53 and the circuit board 37. The lighting circuit 54 is formed by a known configuration that converts an external AC power source into a DC power source and supplies power to the LED bare chip 9 of the light emitter 2, and is further configured to apply a predetermined voltage value to the lens 3. Has been. The circuit board 37 is located inside the flat plate portion 27 and around the insertion portion 25 so that the central opening 42 faces the protruding portion 41 (insertion portion 25) formed in the flat plate portion 27 of the housing 23. It is arranged. That is, the power supply device 6 is disposed between the flat plate portion 27 of the device main body 4 and the reflector 5 with the circuit board 37 sandwiched between the protrusion 41 and the reflector 5.

  In the present embodiment, the electrical connection means 7 is a switch having a switching operation unit. The switch 7 is connected to the lighting circuit 54 of the power supply device 5 through the lead wire 55. When the switch 7 is turned on, a voltage having a predetermined voltage value is applied from the lighting circuit 54 to the electrodes 22 a and 22 b of the lens 3. When the switch 7 is off, no voltage is applied to the lens 3. And the switch 7 is arrange | positioned so that it may be exposed to the outer peripheral surface 23c of the housing | casing 23 by the side of the flat plate part 27, for example. The switch 7 is disposed so as to be turned on and off using an operation tool such as a small screwdriver.

  Next, the operation of the first embodiment will be described.

  The protrusion 24 of the apparatus main body 4 is inserted into an insertion portion of a socket device (not shown), the pair of lamp pins 28 and 28 are inserted into the connection holes of the socket apparatus, and the apparatus main body 4 is rotated, whereby the pair of lamp pins 28 and 28 are electrically connected to a pair of sockets of the socket device. As a result, the power supply device 6 can supply external power via the socket device.

  In addition, when inserting the protrusion 24 into the insertion part of a socket apparatus, the mark 49 of the protective cover 44 is matched with the alignment mark provided in a lighting fixture or a socket apparatus. The key portion 32 of the heat radiating member 29 is inserted into the key groove of the socket device when the protruding body 24 is inserted into the insertion portion of the socket device, and into the key groove when the device body 4 is rotated. Fixed.

  When the external power supply is turned on, an AC voltage (for example, AC 100V) of the external power supply is input to the power supply device 6 through the pair of lamp pins 28 and 28 and the lead wires 40 and 40. In the power supply device 6, the lighting circuit 54 operates to supply power to the light emitter 2 through the output code line 12. As a result, the LED bare chip 9 is lit and white light is emitted from the light emitter 2.

  When the switch 7 is turned off, the radiated light from the light emitter 2 passes through the lens 3, and a part of the radiated light is repeatedly reflected by the inner surface 5 d of the reflector 5, and then is passed from the one end side opening 51 to the protective cover 44. Incident light is emitted from the protective cover 44 with wide-angle light distribution. The emitted light of the light emitter 2 is somewhat refracted when passing through the lens 3, but forms a wide-angle light distribution.

  When the switch 7 is turned on, a voltage having a predetermined voltage value is applied from the lighting circuit 54 of the power supply device 6 to the electrodes 22 a and 22 b of the lens 3 via the lead wire 16. In the lens 3, the oil 20 and the aqueous solution 21 in the container 19 move, and a lens corresponding to the voltage value is formed on the boundary surface between the oil 20 and the aqueous solution 21.

  The light emitted from the illuminator 2 that has entered the container 19 is focused on the center 44 c side of the protective cover 44 by changing the emission direction from the lens 3 at the boundary surface between the oil 20 and the aqueous solution 21. Thereby, the emitted light of the light emitter 2 is emitted from the protective cover 44 with a narrow-angle light distribution. That is, the emitted light of the light emitter 2 forms a narrow-angle light distribution when the switch 7 is turned on.

  Moreover, heat is generated in the light emitter 2 by lighting the LED bare chip 9. This heat is transferred to the attachment portion 30 of the heat radiating member 29 attached to the protrusion 24 of the apparatus main body 4. Then, heat is transferred from the heat radiating member 29 to the fixture body of the lighting fixture that is in contact with the heat radiating member 29 to be radiated. The heat dissipating member 29 is formed of a metal having thermal conductivity, for example, aluminum (Al), and the light emitter 2 is attached in surface contact, so that the heat generated by the light emitter 2 is rapidly conducted. And discharged to the outside of the lamp device 1.

  According to the present embodiment, in the lamp device 1, a voltage is applied to the lens 3 by the electrical connection means 7, and the focal length of the lens 3 is varied according to the voltage value. Thus, different light distributions such as narrow-angle light distribution and wide-angle light distribution can be formed depending on whether or not voltage is applied to the lens 3. Therefore, it is possible to reduce the number of models of the lamp device 1 having different light distributions, to reduce the number of parts, to facilitate product management, and to reduce the cost of the lamp device 1.

  Further, by disposing the switch 7 having a switching operation portion as an electrical connection means on the outer peripheral surface 23c side of the housing 23 of the apparatus body 4, the switch 7 can be turned on and off from the outside, and the lamp device 1 There is an effect that the distribution of the radiated light according to the use environment can be freely selected.

  In this embodiment, a remote control sensor is provided as an electrical connection means in place of the switch 7, and the lighting circuit 54 of the power supply device 6 varies the voltage value applied to the lens 3 in accordance with the remote control signal. May be. Thereby, the shape of the boundary surface between the oil 20 and the aqueous solution 21 in the container 19 of the lens 3 changes according to the voltage value. That is, the light distribution of the radiated light can be varied by the remote controller.

  In the present embodiment, the light emitter 2 is formed using the substrate 8. However, the LED bare chip 9 may be formed on the attachment portion 30 of the heat dissipation member 29 without using the substrate 8. In this case, since the heat radiating member 29 is a metal, an insulating layer is formed on the attachment portion 30, and the LED bare chip 9 and the like are mounted on the insulating layer.

  The apparatus body 4 may be provided with a light adjustment pin in addition to the lamp pins 28 and 28 on the flat plate portion 27, and the light adjustment pin is connected to the lighting circuit 43 to adjust the LED bare chip 9 of the light emitter 2. You may form so that light may be lighted.

  Next, a second embodiment of the present invention will be described.

  2nd Embodiment is the lighting fixture 56 of this invention, and is comprised as shown in FIG.5 and FIG.6. The same parts as those in FIGS. 1 and 2 are denoted by the same reference numerals.

  The lighting fixture 56 is a downlight embedded in a ceiling or the like. In FIG. 6, a lighting fixture 56 includes a fixture main body 58 having a socket device 57 as a socket and the lamp device 1 shown in FIG. 1.

  The instrument main body 58 is molded by aluminum die casting, has an opening 59 on the lower end side 58a and an annular flange portion 60 protruding outward, closes the upper end side 58b on the upper end side 58b, and is formed in a flat shape. It is formed in a substantially cylindrical box having an upper plate portion 61. Further, on the outer surface 58c of the instrument body 58, reinforcing pieces 62, 63 that also serve as a plurality of heat radiation fins are formed. Furthermore, a pair of attachment springs 64, 64 are provided on the lower end side 58a of the outer surface 58c to sandwich the ceiling or the like with the flange portion 60. And the inner surface 58d of the instrument main body 58 is formed in the reflective surface, for example by white coating.

  A top plate 65 is attached to the outer surface of the upper plate portion 61 with screws 66 or the like. As shown in FIG. 5, the top plate 65 has a terminal block 67 attached to the lower surface 65a thereof. A power supply line (not shown) from an external power supply and a lead wire (not shown) connected to the socket device 57 are respectively connected to the terminal block 67. A triangular alignment mark 68 for aligning with the mark 49 of the lamp device 1 is provided on the inner surface 58d of the instrument main body 58.

  As shown in FIG. 6, a socket device 57 is attached to the inner surface of the upper plate portion 61 by screws (not shown). The socket device 57 is formed with a well-known configuration to which the protruding body 24 of the device body 4 is attached. The lamp device 1 is mounted on the socket device 57. In the lamp device 1, the protrusion 24 (not shown) is inserted into an insertion portion (not shown) of the socket device 57, and the pair of lamp pins 28 and 28 (not shown) are a pair of connection holes (not shown) of the socket device 57. After being inserted into the socket device, it is fixed to the socket device 57 by being rotated, and the pair of lamp pins 28 and 28 are electrically connected to a pair of receivers (not shown) of the socket device 57.

  When an external power source is supplied to the terminal block 67, the lighting fixture 56 turns on the LED bare chip 9 (not shown) of the lamp device 1 and radiates white light from the light emitter 2 (not shown). Light passes through the protective cover 44. The white light is emitted outward from the opening 59 of the instrument main body 58 and illuminates the irradiated surface, for example, the floor surface.

  Since the lighting device 56 is equipped with the lamp device 1 in which the distribution of the emitted light is controlled by turning on and off the switch 7, it has an effect that it can be illuminated with the light distribution according to the use environment.

  DESCRIPTION OF SYMBOLS 1 ... Lamp apparatus, 2 ... Luminescent body, 3 ... Lens, 4 ... Apparatus main body, 6 ... Power supply device, 7 ... Electrical connection means, 23 ... Housing, 24 ... Projection body, 25 ... Insertion part, 26 ... Opening part, 27 ... Flat plate part, 56 ... Lighting equipment, 57 ... Socket, 58 ... Equipment body

Claims (3)

A cylindrical housing having an opening on one end side and a flat plate portion on the other end side, a cylindrical projecting body formed to project from the central portion of the flat plate portion to the other end side, and communicating with the inside of the projecting body An apparatus main body having an insertion portion formed inside the flat plate portion;
A light emitter disposed in the projecting body such that emitted light is emitted from the opening of the housing;
A lens which is arranged so as to face the light emitter and whose focal length is variable by a voltage value;
A power supply device disposed within the housing and configured to supply power to the light emitter;
Electrical connection means for applying a voltage to the lens from the power supply device;
A lamp device comprising:   2. The lamp device according to claim 1, wherein the electrical connection means is disposed on the outer peripheral surface side of the housing of the device main body. A lamp device according to claim 1 or 2;
An instrument body having a socket to which the lamp device is connected;
The lighting fixture characterized by comprising.

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