JP2008204731A - Luminaire - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To allow miniaturization by using a discharge lamp formed into a flat shape by bending an arc tube like a double spiral shape, and to surely carry out remote control by an infrared signal. <P>SOLUTION: This luminaire is provided with: the discharge lamp 1 of a double spiral shape formed into a flat shape by bending the arc tube 1a; a light reception part 4 receiving an infrared signal transmitted from a remote control device 9; and a lighting device 2 executing lighting control of the discharge lamp 1 in response to the infrared signal P1 received by the light reception part 4. The discharge lamp 1, the lighting device 2 and the light reception part 4 are arranged adjacently to one another along a horizontal plane X1 including the flat shape of the arc tube 1a in a luminaire body 10, and the discharge lamp 1 and the light reception part 4 are arranged at positions interposing the lighting device 3. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a lighting fixture that is controlled to be turned on by an infrared signal transmitted from a remote control device.

  Conventionally, there is a lighting fixture whose lighting is controlled by an infrared signal transmitted from a remote control device, and the lighting operation of the discharge lamp is remotely controlled. For example, as shown in FIG. 3, in the pendant type lighting fixture A100 in which two annular fluorescent lamps 101 are vertically stacked in an illumination shade 104 and the illumination shade 104 is suspended from the ceiling, An infrared reflector 105 is mounted between the shade 104 and the ceiling 110, and an infrared signal light receiving portion 102 is provided in an upper portion of the illumination shade 104 with its light receiving surface facing the infrared reflector 105. In order to receive the infrared signal from below, the light receiving unit 103 is provided on the inner peripheral side of the annular fluorescent lamp 101 with the light receiving surface facing downward (see, for example, Patent Document 1).

  Further, as shown in FIG. 4, in the ceiling-type lighting fixture A200 directly attached to the ceiling surface 210, two annular fluorescent lamps 201 are arranged in the vertical direction in the fixture main body 203, and an infrared signal receiving unit 202 is provided on the outer peripheral side of the annular fluorescent lamp 201 (see, for example, Patent Document 2).

In recent years, there is a discharge lamp 1 including a single arc tube 1a having a double spiral shape as shown in FIGS. 5A and 5B in order to save energy and resources. The arc tube 1a includes two spiral portions 1d and 1e that swirl around a virtual axis Y passing vertically through the center of the spiral as viewed from above, and one end of the spiral portions 1d and 1e (on the side on which the filament is provided). On the other hand, the connecting portion 1f is formed in a planar shape having a connecting portion 1f for connecting the two, and the connecting portion 1f has a bulging portion whose outer diameter is larger than that of the spiral portions 1d and 1e. Sometimes this bulge becomes the coldest spot. All or most of the tube axis of the arc tube 1a is formed on one plane substantially orthogonal to the virtual axis Y, and the spiral portions 1d, 1e move toward the both end portions 1b, 1c from the connecting portion 1f. The arc tube 1a is swung in the same direction (S direction in FIG. 5A) so as to be separated from Y, and the arc tube 1a has a double swirl shape having two swirl portions 1d and 1e swirling in the same S direction. When viewed from the direction orthogonal to the virtual axis Y, the disk shape is obtained, and the light emitting surface is planar. The caps 1g and 1h are attached to both ends 1b and 1c of the arc tube 1a, and the caps 1g and 1h are connected to electrodes (not shown) sealed at both ends 1b and 1c of the arc tube 1a. Connection terminal pins 1i and 1j are provided. Such a double spiral-shaped discharge lamp 1 is more compact than an annular fluorescent lamp, and can obtain a preferable light distribution with a circular irradiated surface (see, for example, Patent Document 3).
Japanese Utility Model Publication No. 3-15497 JP-A-5-41288 JP 2006-244912 A

  The luminaire includes a lighting device including an inverter circuit that outputs high-frequency power for lighting the discharge lamp. Light emitted from the discharge lamp that is lit by the high-frequency power is several tens of times that is the oscillation frequency of the inverter circuit. A frequency component of KHz is included. The frequency of the subcarrier of the infrared signal transmitted by the remote control device is generally 33 to 40 KHz, and the frequency of the subcarrier of the infrared signal and the oscillation frequency of the inverter circuit are close to each other.

  Therefore, if the infrared signal receiving part is arranged near the discharge lamp, the light from the discharge lamp is likely to enter the light receiving part, and the signal received by the light receiving part includes the oscillation frequency of the inverter circuit included in the light from the discharge lamp. Since the component is superimposed as noise, lighting control by the remote control device performed at the time of lighting may be disabled or malfunction may occur. In order to solve such a problem, the light receiving unit and the discharge lamp may be disposed apart from each other (for example, the light receiving unit is disposed outside the device main body), but the device becomes large.

  Further, when the double spiral discharge lamp 1 as shown in FIGS. 5A and 5B is used, the lighting device can be housed on the inner peripheral side of the lamp like a luminaire using an annular fluorescent lamp. Therefore, it has been difficult to reduce the thickness and size of the instrument.

  The present invention has been made in view of the above reasons, and its purpose is to enable downsizing using a discharge lamp configured in a planar shape by bending a light-emitting tube like a double spiral shape, and An object of the present invention is to provide a lighting apparatus capable of reliably performing remote control using an infrared signal.

  According to a first aspect of the present invention, there is provided a discharge lamp configured to have a planar shape by bending an arc tube, a light receiving unit for receiving an infrared signal transmitted from a remote control device, and a discharge lamp according to the infrared signal received by the light receiving unit. The discharge lamp, the light receiving unit, and the lighting device are arranged along the same plane, and the discharge lamp and the light receiving unit are arranged at a position sandwiching the lighting device. And

  According to the present invention, the discharge lamp, the light receiving unit, and the lighting device are arranged along the same plane, so that the discharge lamp is formed into a planar shape by bending the arc tube like a double spiral shape. Miniaturization is possible. Furthermore, by disposing the lighting device between the discharge lamp and the light receiving unit, it becomes difficult for the light from the discharge lamp to enter the light receiving unit, and remote control using an infrared signal can be reliably performed.

  According to a second aspect of the present invention, in the first aspect, the discharge lamp, the light receiving unit, and the lighting device are located at a position where the discharge lamp and the light receiving unit sandwich the lighting device along a plane including a planar shape of the arc tube. It is characterized by being arranged.

  According to this invention, the thickness of the lighting fixture is determined by the largest thickness dimension among the discharge lamp, the lighting device, and the light receiving unit, and can be miniaturized. Further, since the light emitted from the discharge lamp toward the light receiving unit is blocked by the lighting device and does not directly enter the light receiving unit, the oscillation frequency component included in the light of the discharge lamp is included in the signal received by the light receiving unit as noise. It becomes difficult to superimpose, and remote control by the remote control device is reliably performed.

  According to a third aspect of the present invention, in the first aspect, the lighting device is formed in a long shape having a long side portion and a short side portion, and the discharge lamp, the light receiving portion, and the lighting device are flat surfaces of the arc tube. The discharge lamp and the light receiving unit are arranged at a position sandwiching the lighting device along a second plane orthogonal to the first plane including the shape, and the long side portion of the lighting device is opposed to the second plane. Features.

  According to this invention, the dimension of the lighting fixture is determined by the diameter of the discharge lamp, and can be reduced in size. Furthermore, since the distance between the discharge lamp and the light receiving unit is separated by the long side of the discharge lamp, the oscillation frequency component included in the light of the discharge lamp is difficult to be superimposed as noise on the signal received by the light receiving unit, and the remote controller Remote control by the device is surely performed.

  According to a fourth aspect of the present invention, in the third aspect, the light receiving section has directivity in a normal direction of the second plane.

  According to the present invention, an infrared signal transmitted from the remote control device in a direction different from that of the lighting fixture can be received by being irregularly reflected by the wall or the like, and the reception sensitivity is increased.

  According to a fifth aspect of the present invention, in any one of the first to fourth aspects, the discharge lamp forms a double spiral discharge path and has a disk-shaped appearance.

  According to the present invention, it is possible to obtain a preferable light distribution that is more compact than a ring fluorescent lamp and further has a circular irradiated surface.

  As described above, in the present invention, it is possible to reduce the size by using a discharge lamp having a planar shape by bending a light-emitting tube like a double spiral shape, and to perform remote control with infrared signals reliably. There is an effect that can be.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
1 (a) and 1 (b) show a configuration of a lighting fixture A1 of the present embodiment, and a discharge lamp 1, a lighting device 2, and a lamp holder are placed in a rectangular box-like fixture body 10 having an open bottom surface. 3 and an infrared signal light receiving portion 4 are housed, and a cover 11 is covered on the lower surface opening of the instrument body 1. The main body 10 is surrounded by four side surfaces, and one side surface 10a thereof is fixed to a wall W1 or the like of the structure, and constitutes a bracket type lighting device A1. 1A is a plan view of the lighting fixture A1 as viewed from below (however, the cover 11 is omitted), and FIG. 1B is a cross-sectional view taken along the line BB ′ of the lighting fixture A1. Further, in the fixture main body 10, both ends of the discharge lamp 1 are mounted, and a socket for supplying high-frequency power output from the lighting device 2 to the discharge lamp 1, input / output wiring of the lighting device 2, and the like are arranged. However, its configuration is well known and will not be described and illustrated.

  5 (a) and 5 (b) described in the background art, the discharge lamp 1 is formed in a disc shape and has a double spiral shape whose light emitting surface is planar, and the side surface 10a has The lamp holder 3 is disposed so as to face the opposite side surface 10 b and is fixed to the upper bottom surface of the instrument body 10. The lamp holder 3 includes a rectangular base portion 3a and holding portions 3b and 3b provided at both ends in the longitudinal direction of the base portion 3a. The holding portions 3b and 3b are disposed on the arc tube 1a side from the base portion 3a. And the light emitting surface of the discharge lamp 1 is fixed so as to face in the vertical direction by fitting the outer periphery of the arc tube 1a into the curved portion.

  The lighting device 2 is formed in a long rectangular box shape, and the short side portions 21 and 22 facing each other and the long side portions 23 and 24 facing each other constitute an outer periphery, and one long side portion 23 is Near the side surface 10a of the discharge lamp 1 so as to face the discharge lamp 1, it is arranged on the upper bottom surface of the fixture body 10, and converts the commercial power from the outside into high-frequency power by an inverter circuit, and the discharge lamp 1 is supplied. The lighting operation (turning on, turning off, dimming, etc.) is controlled by a control signal from the light receiving unit 4 that has received the infrared signal P1 transmitted by operating the remote control device 9.

  The light receiving unit 4 is disposed on the upper bottom surface of the fixture body 10 so as to be in close proximity to the other long side portion 24 of the lighting device 2 with the infrared light signal receiving surface 4a facing downward. Infrared signal P1 transmitted from is received, and a control signal corresponding to the content of the infrared signal is output to lighting device 2.

  The cover 11 is formed with a translucent panel 12a at a location facing the discharge lamp 1, and further formed at a translucent panel 12b at a location facing the light receiving surface 4a of the light receiving unit 4, so that light emitted from the discharge lamp 1 is transmitted. It is emitted to the outside through the optical panel 12a, and the infrared signal P1 from the remote controller 9 reaches the light receiving unit 4 through the translucent panel 12b. Moreover, you may comprise the translucent panel 12a, 12b by one translucent panel.

  The discharge lamp 1, the lighting device 2, and the light receiving unit 4 are close to each other along a plane X1 (see FIG. 1B) perpendicular to the virtual axis Y of the arc tube 1a and including the planar shape of the arc tube 1a. Are arranged. That is, the discharge lamp 1, the lighting device 2, and the light receiving unit 4 are juxtaposed along the horizontal plane X <b> 1 including the planar shape of the arc tube 1 a in the fixture body 10, and the vertical direction of the lighting fixture A <b> 1. The dimension (thickness) is determined by the largest vertical dimension among the discharge lamp 1, the lighting device 2, and the light receiving unit 4, and can be thinned after the light receiving unit 4 is integrated with the lighting fixture A 1. Further, by disposing the discharge lamp 1 and the light receiving portion 4 so as to face the long side portions 23 and 24 of the lighting device 2, the size of the fixture body 10 is suppressed, and the size can be reduced.

  Further, the discharge lamp 1 is disposed on the long side portion 23 side of the lighting device 2, and the light receiving portion 4 is disposed on the long side portion 24 side of the lighting device 2. The lighting device 2 is sandwiched between the two. Therefore, the light emitted from the discharge lamp 1 toward the light receiving unit 4 is blocked by the lighting device 2 and is not directly incident on the light receiving unit 4, so that the signal received by the light receiving unit 4 is included in the light of the discharge lamp 1. The oscillation frequency component is hardly superimposed as noise, and remote control by the remote control device 9 is performed reliably.

  Moreover, if a translucent panel is provided also on the upper surface of the instrument main body 1, it becomes a lighting fixture which can distribute light in the up-down direction, or if a translucent panel is provided only on the upper surface of the instrument main body 1, it distributes light only in the upper direction. It becomes a possible lighting fixture.

  In the present embodiment, the wall-mounted bracket-type lighting fixture has been described. However, even in the case of a ceiling-type ceiling lighting fixture or a pendant-type lighting fixture suspended from the ceiling, the discharge lamp 1 is provided in the fixture body. By arranging the lighting device 2 and the light receiving unit 4 in the same manner, remote control using an infrared signal can be performed reliably while reducing the size and thickness of the instrument.

(Embodiment 2)
FIG. 2 shows the configuration of the lighting fixture A2 of the present embodiment. A rectangular box-like fixture body 6 that houses the lighting device 2 and the infrared signal receiver 4 is connected via a cable 5 attached to the upper end thereof. A lighting shade 7 fixed to the ceiling surface W2 and having a reflection plate on the inner surface is attached to the lower end of the fixture body 6. The discharge lamp 1 and the lamp holder 3 are housed in the illumination shade 7, and a pendant type lighting fixture is provided. Configure A2. In the illumination shade 7, both ends of the discharge lamp 1 are mounted, and a socket for supplying high-frequency power output from the lighting device 2 to the discharge lamp 1, input / output wiring of the lighting device 2, and the like are arranged. However, its configuration is well known and will not be described and illustrated.

  5 (a) and 5 (b) described in the background art, the discharge lamp 1 is formed in a disc shape and has a double spiral shape whose light emitting surface is planar, and the lower part is opened. It is arranged at the approximate center in the lighting shade 7 and is held by the lamp holder 3. The lamp holder 3 includes a rectangular base portion 3a and holding portions 3b and 3b provided at both ends in the longitudinal direction of the base portion 3a. The holding portions 3b and 3b are disposed on the arc tube 1a side from the base portion 3a. And the light emitting surface of the discharge lamp 1 is fixed so as to face in the vertical direction by fitting the outer periphery of the arc tube 1a into the curved portion.

  The lighting device 2 is formed in a long rectangular box shape, and the short side portions 21 and 22 facing each other and the long side portions 23 and 24 facing each other constitute an outer periphery, and one short side portion 21 is It is arranged at the lower end in the fixture body 6 so as to be close to and opposed to the discharge lamp 1 with the illumination shade 7 interposed therebetween (the long sides 23 and 24 of the lighting device 2 face the plane X2). The commercial power input is converted into high-frequency power by an inverter circuit and supplied to the discharge lamp 1. The lighting operation (turning on, turning off, dimming, etc.) is controlled by a control signal from the light receiving unit 4 that has received an infrared signal transmitted by operating the remote control device 9.

  The light receiving unit 4 is disposed close to the lighting device 2 in the instrument body 6 with the light receiving surface 4a of the infrared signal facing sideways, and receives the infrared signal transmitted from the remote control device 9. The control signal corresponding to the content of the infrared signal is output to the lighting device 2. In addition, as for the instrument main body 6, the location which opposes the light-receiving surface 4a at least is comprised by the translucent panel.

  The discharge lamp 1, the lighting device 2, and the light receiving unit 4 are arranged close to each other along a plane X2 perpendicular to the plane X1 orthogonal to the virtual axis Y of the arc tube 1a. That is, the discharge lamp 1, the lighting device 2, and the light receiving unit 4 are arranged in the fixture body 10 so as to overlap along the vertical plane X <b> 2 including the virtual axis Y of the arc tube 1 a, and the lighting fixture A <b> 1. The dimension in the horizontal direction is mainly determined by the diameter of the discharge lamp 1 and can be reduced in size after the light receiving unit 4 is integrated with the lighting fixture A2.

  Further, the discharge lamp 1 is disposed on the short side portion 21 side of the lighting device 2, and the light receiving portion 4 is disposed on the short side portion 22 side of the lighting device 2. The long parts 23 and 24 of the lighting device 2 are sandwiched between the two. Therefore, since the distance between the discharge lamp 1 and the light receiving unit 4 is separated by the long side of the discharge lamp 1, the oscillation frequency component included in the light of the discharge lamp 1 is superimposed on the signal received by the light receiving unit 4 as noise. Therefore, remote control by the remote control device 9 is surely performed.

  Further, since the light receiving surface 4a of the light receiving unit 4 is arranged toward the side that is the normal direction of the plane X2, and has the directivity for receiving infrared signals in the direction, for example, the remote controller 4 and the lighting fixture A2 The infrared signal P2 transmitted in a different direction can be received by irregular reflection on the side wall W3 or the like, and the reception sensitivity is high.

(A) (b) It is a figure which shows the structure of the lighting fixture of Embodiment 1. FIG. It is a figure which shows the structure of the lighting fixture of Embodiment 2. FIG. It is a figure which shows the structure of the conventional pendant type lighting fixture. It is a figure which shows the structure of the conventional ceiling-type lighting fixture. (A) (b) It is a figure which shows the structure of the discharge lamp of a double spiral shape.

Explanation of symbols

A1 lighting fixture 1 discharge lamp 1a arc tube 2 lighting device 4 light receiving part 9 remote control device X1 plane

Claims (5)

  A discharge lamp configured to have a flat shape by bending an arc tube, a light receiving unit that receives an infrared signal transmitted from a remote control device, and a lighting device that performs lighting control of the discharge lamp according to the infrared signal received by the light receiving unit The discharge lamp, the light receiving unit, and the lighting device are disposed along the same plane, and the discharge lamp and the light receiving unit are disposed at a position sandwiching the lighting device.   2. The discharge lamp, the light receiving unit, and the lighting device are disposed at a position where the discharge lamp and the light receiving unit sandwich the lighting device along a plane including a planar shape of the arc tube. Lighting fixtures. The lighting device is formed in a long shape having a long side portion and a short side portion,
The discharge lamp, the light receiving unit, and the lighting device are disposed at a position where the discharge lamp and the light receiving unit sandwich the lighting device along a second plane orthogonal to the first plane including the planar shape of the arc tube. The lighting device according to claim 1, wherein the long side portion of the lighting device faces the second plane.   The lighting device according to claim 3, wherein the light receiving unit has directivity in a normal direction of the second plane.   The lighting apparatus according to claim 1, wherein the discharge lamp forms a double spiral discharge path and has a disk-shaped appearance.

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