WO2010140480A1 - Illuminating device - Google Patents

Illuminating device Download PDF

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Publication number
WO2010140480A1
WO2010140480A1 PCT/JP2010/058508 JP2010058508W WO2010140480A1 WO 2010140480 A1 WO2010140480 A1 WO 2010140480A1 JP 2010058508 W JP2010058508 W JP 2010058508W WO 2010140480 A1 WO2010140480 A1 WO 2010140480A1
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WO
WIPO (PCT)
Prior art keywords
light
led module
remote control
lighting device
led
Prior art date
Application number
PCT/JP2010/058508
Other languages
French (fr)
Japanese (ja)
Inventor
津田　陽一
昌史 山本
Original Assignee
シャープ株式会社
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Filing date
Publication date
Application filed by シャープ株式会社 filed Critical シャープ株式会社
Publication of WO2010140480A1 publication Critical patent/WO2010140480A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F21K9/232—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present invention relates to a lighting device having a light source such as a light emitting diode, and more particularly to a lighting device having a light bulb shape.
  • LEDs light emitting diodes
  • This invention is made
  • An illuminating device includes a light source unit and a light transmitting unit that covers the light source unit and transmits light from the light source unit, and the light transmitting unit includes a light diffusing member.
  • the translucent part that transmits light from the light source part has a light diffusing member.
  • the light diffusing member has, for example, a crystal structure, and the optical properties thereof may be, for example, those having a large refractive index, a small light absorption ability, and a high light scattering ability.
  • a pigment having a crystal structure such as a phosphor may be added to a transparent resin-made or glass-made transparent part, or a pigment may be applied to the surface of the transparent part.
  • the illumination device according to the present invention is characterized in that the light diffusion member is a phosphor.
  • the light diffusing member is a phosphor. Since the light emitted from the LED is diffused by the phosphor when passing through the light transmitting portion, the light distribution characteristic can be widened with a simple configuration.
  • the illuminating device according to the present invention is characterized in that the light transmitting part is formed by adding the phosphor.
  • the translucent part is formed by adding a phosphor.
  • the illuminating device is characterized in that the translucent portion is formed by applying the phosphor on at least one of an incident surface on which light from the light source is incident and a transmissive surface on which the light is transmitted.
  • the light transmitting portion is formed by applying a phosphor to at least one of an incident surface on which light from a light source is incident and a transmitting surface on which light is transmitted.
  • the light source unit includes a circuit board and a light emitting diode mounted on the circuit board and having a planar light emitting surface, and the light transmitting part forms a hollow substantially hemispherical shell. It is made of glass.
  • the light source unit includes a circuit board and a light emitting diode mounted on the circuit board and having a planar light emitting surface, and the light transmitting part is made of glass having a hollow, substantially hemispherical shell. .
  • a light bulb-type lighting device using a light emitting diode and having a wide light distribution characteristic can be provided.
  • FIG. 1 is an external view of a lighting device according to Embodiment 1.
  • FIG. FIG. 3 is an exploded perspective view of a main part of the lighting device according to the first embodiment.
  • FIG. 3 is a cross-sectional view of the lighting device according to the first embodiment. It is a top view which shows the structural example of the light emission surface of a light source module.
  • FIG. 6 is a cross-sectional view of a main part of a light transmitting part according to a second embodiment. 6 is a schematic diagram illustrating an installation example of a lighting device according to Embodiment 3.
  • FIG. It is sectional drawing of the illuminating device of Embodiment 4.
  • FIG. 10 is a plan view illustrating a structure example of a light emitting surface of a light source module according to a fourth embodiment.
  • FIG. 10 is a block diagram illustrating a configuration of a power supply unit according to a fourth embodiment. It is explanatory drawing which shows an example of the signal received with a remote control light-receiving part. It is explanatory drawing which shows an example of the signal received with a remote control light-receiving part. It is explanatory drawing which shows the relationship between a PWM frequency and the reach
  • FIG. 10 is a plan view showing a structural example of a light emitting surface of a light source module according to a fifth embodiment. It is principal part sectional drawing which shows an example of arrangement
  • FIG. 10 is a plan view showing a structural example of a light emitting surface of a light source module according to a fifth embodiment. It is principal part sectional drawing which shows an example of arrangement
  • FIG. 1 is an external view of the illumination device 100 according to the first embodiment
  • FIG. 2 is an exploded perspective view of a main part of the illumination device 100 according to the first embodiment
  • FIG. 3 is a cross-sectional view of the illumination device 100 according to the first embodiment.
  • the lighting device 100 is an LED bulb having a bulb type such as 40 W, 60 W, etc., and as a power supply connection portion that fits into an external socket and is electrically connected to a commercial power source in appearance.
  • the base 10, the heat radiating portion 13, the coupling body 11 that connects the base 10 and the heat radiating portion 13, the hollow, substantially hemispherical translucent portion 50, and the LED module to be described later are placed and thermally connected to the heat radiating portion 13.
  • the disc-shaped heat sink 20 is provided.
  • a light source module 40 in which an LED module 42 is mounted on the surface of a substrate 41 is attached to the heat radiating plate 20 with screws 21. Between the light source module 40 and the heat radiating plate 20, heat generated in the light source module 40 is radiated from the heat radiating plate 20 and the heat radiating unit by applying a heat conductive sheet or a highly heat conductive resin in order to improve the heat conduction efficiency. The heat can be radiated to the outside through 13.
  • the heat dissipating part 13 is made of, for example, a lightweight and highly heat conductive metal such as aluminum and has a substantially cylindrical shape.
  • the heat dissipating part 13 has a plurality of heat dissipating grooves on the outer peripheral surface of the cylinder, and heat transmitted from the light source module 40 to the heat dissipating part 13 is dissipated from the outer peripheral surface to the outside air using the heat dissipating grooves.
  • a waterproof packing 19 made of synthetic rubber is provided between the heat radiating portion 13 and the heat radiating plate 20 so that moisture does not enter the inside.
  • the heat radiating portion 13 has a cavity formed therein, and a power supply portion for supplying required power (voltage, current) to the LED module 42 of the light source module 40 via the wiring 22 inside the heat radiating portion 13. 30 and an accommodating portion 15 for accommodating the power source portion 30 are arranged. Further, a power line 17 for supplying commercial power to the power supply unit 30 is provided between the power supply unit 30 and the base 10.
  • a waterproof ring 12 made of synthetic rubber is provided between the heat radiating portion 13 and the connecting body 11 so that moisture does not enter the inside.
  • the heat radiating portion 13 and the connecting body 11 are fixed by screws 14. Yes.
  • synthetic resin 25 for example, polyurethane resin.
  • the synthetic resin 25 preferably has high electrical insulation, low water permeability, and flame retardancy.
  • the synthetic resin 25 is filled in the heat radiating portion 13 in a state where the electrical wiring inside the heat radiating portion 13 is finished and the heat radiating portion 13 and the base 10 are mechanically joined.
  • the synthetic resin 25 is in a liquid state when filled. After filling with the synthetic resin 25, it is cured at a required temperature.
  • the cured synthetic resin 25 adheres to the inner surface of the base 10 and also to the inner surface of the heat radiating portion 13. Thereby, it is possible to more reliably prevent moisture from entering from the joint portion of the base 10.
  • the synthetic resin 25 has high electrical insulation, it is possible to reliably prevent the heat dissipation part 13 and the charging part of the power supply part 30 from being broken down due to dielectric breakdown. Further, since the synthetic resin 25 has a high thermal conductivity, the heat generated in the power supply unit 30 is dissipated not only from the heat radiating unit 13 but also from the base 10 thermally connected through the synthetic resin 25. Thus, the temperature rise of the power supply unit 30 can be suppressed, and the reliability of the electrical components used in the power supply unit 30 can be improved.
  • a reflection plate 23 is attached to the light emitting surface side of the light source module 40 with screws 21.
  • the reflection plate 23 is provided with an insertion hole having a dimension substantially the same as the dimension of the LED module 42 at a position corresponding to the position where the LED module 42 is disposed, and the LED module 42 is inserted into the insertion hole. It is supposed to be.
  • the reflecting plate 23 is not essential and can be omitted.
  • the translucent part 50 is made of milky white glass, and is fixed to the heat sink 20 with an adhesive.
  • the translucent part 50 is not limited to glass, Milky white polycarbonate resin etc. can also be used.
  • the translucent part 50 when it is a product made from polycarbonate resin, it can be screwed and locked to the heat sink 20 by cutting a screw.
  • a light diffusing member 50 a for diffusing light from the LED module 42 (light source module 40) is added to the light transmitting part 50.
  • the light diffusing member 50a has, for example, a crystal structure, and its optical properties may be, for example, those having a large refractive index, a small light absorption ability, and a high light scattering ability.
  • a pigment having a crystal structure such as a phosphor can be added.
  • the addition ratio of the light diffusing member 50a may be about several percent, for example.
  • 3Ca 3 (PO 4 ) 2 Ca (F, Cl) 2 SbMn can be used as the phosphor.
  • the light emitted from the LED module 42 passes through the light transmitting part 50 even when the light directivity of the LED module 42 is narrow. Therefore, the light distribution characteristic can be widened with a simple configuration.
  • the light diffusing member 50a is a phosphor, a material that diffuses light and is excited by the light to emit light may be used. The light diffusing member 50a itself also emits light, so that the light distribution can be further expanded.
  • the light transmitting part 50 forms a hollow, substantially hemispherical shell, it is possible to provide a bulb-type lighting device having a wide light distribution characteristic using the LED module 42 (light emitting diode).
  • the light-transmitting part 50 and the heat sink 20 are joined at a position slightly smaller than the maximum diameter of the light-transmitting part 50 having a substantially hemispherical shell, the light emitted from the LED module 42 is transmitted through the light-transmitting part. Since it is radiated in the direction from the heat dissipating part 13 toward the base 10 by transmitting from the portion from the joint portion of the light transmitting part 50 and the heat radiating plate 20 to the maximum diameter in the surface of the part 50, The light distribution characteristic can be widened.
  • FIG. 4 is a plan view showing a structural example of the light emitting surface of the light source module 40.
  • a plurality of LED modules 42 are annularly arranged on a substantially circular substrate 41 made of an aluminum alloy or the like and separated in an appropriate length.
  • six LED modules 42 are arranged.
  • the number and arrangement of the LED modules 42 are not limited to the example of FIG. 4, and depend on the specifications and applications of the lighting device. Thus, the number can be changed as appropriate, and the arrangement can be appropriately made, for example, rectangular.
  • the substrate 41 may be ceramic.
  • the LED module 42 can be of a required emission color, for example, a white one.
  • the emission color is not limited to white, and may be daylight white or a light bulb color.
  • Embodiment 2 In the example of FIG. 3 described above, the light diffusing member 50a is added to the light transmitting portion 50.
  • the present invention is not limited to this, and a light diffusing member may be applied.
  • FIG. 5 is a cross-sectional view of a main part of the translucent part 51 of the second embodiment.
  • the translucent part 51 is made of milky white glass, like the translucent part 50 of the first embodiment, and is fixed to the heat sink 20 with an adhesive.
  • the translucent part 51 is not limited to glass, and milky white polycarbonate resin or the like can also be used.
  • the translucent part 50 when it is a product made from polycarbonate resin, it can be screwed and locked to the heat sink 20 by cutting a screw.
  • a light diffusing member 52 is applied to the inner side surface of the translucent part 50 (for example, baking application or electrostatic application).
  • a light diffusing material 52 that is a phosphor is applied to the surface of the light transmitting portion 51, heated from room temperature to 100 ° C. over about 30 minutes, and further heated. Application is performed by heating at 150 ° C. for about 30 minutes.
  • the light diffusing member 52 has, for example, a crystal structure, and its optical properties are, for example, high refractive index, low light absorption ability, and high light scattering ability. That's fine.
  • the coating thickness of the light diffusing member 52 may be about 1 mm to 2 mm.
  • the thickness of the light diffusing member 52 is too thick, light is difficult to transmit. Therefore, by setting the above range, light can be transmitted and diffused. As a result, when the LED module 42 having the surface emission property is used as the light source, the light emitted from the LED module 42 passes through the light transmitting portion 51 even when the directivity of light of the LED module 42 is narrow.
  • the light diffusing member 52 diffuses the light distribution characteristics with a simple configuration.
  • the coating thickness is not limited to the range of 1 mm to 2 mm, and can be, for example, about several tens of ⁇ m.
  • the light diffusing member 52 is applied to the inner side surface of the light transmitting part 50, but is not limited to this, and can be applied to the outer side surface of the light transmitting part 50.
  • the translucent part 50 may have a double structure, and the translucent part 50 may be configured with a layer made of the light diffusion member 52 interposed therebetween.
  • the lighting device 100 has the structure of an LED bulb having a specific emission color, but the lighting device 100 may be provided with a dimming function.
  • a dimmer (not shown) is interposed in the power line between the commercial power source and the lighting device 100, and the brightness of the illumination light of the lighting device 100 is adjusted by the dimmer. Can be configured.
  • FIG. 6 is a schematic diagram illustrating an installation example of the lighting device 100 according to the third embodiment.
  • the commercial power source is provided with a dimmer 200, and a plurality of lighting devices 100 are connected to the power line on the output side of the dimmer 200.
  • the lighting device 100 can be replaced with an existing light bulb by replacing the lighting device 100 with a light bulb shape incorporating the LED module 42.
  • the lighting device 100 installed over a wide range can be dimmed at once by turning a dimming knob (such as an operation switch) of the dimmer 200.
  • the lighting device 100 can be dimmed by transmitting a signal to the dimmer 200 using a remote control for remote operation.
  • the lighting device 100 may have a configuration in which the dimmer 200 is housed and housed in the housing portion 15 inside the heat radiating portion 13, similarly to the power supply unit 30.
  • the dimmer 200 outputs a phase-controlled AC voltage to each lighting device 100 according to the dimming degree (for example, 100% to 25%).
  • the phase angle of the input voltage is detected, and the LED module 42 is turned on with a light amount corresponding to the phase angle. For example, when the phase angle is small, the current flowing through the LED module 42 is increased, and the current flowing through the LED module 42 is decreased as the phase angle increases, thereby performing dimming according to the phase angle. be able to.
  • the description of the same parts as in the first and second embodiments is omitted.
  • the light can be accurately adjusted even with respect to the AC voltage that is phase-controlled as described above. It can also be used in combination with existing light bulbs.
  • Embodiment 4 In the first embodiment, there is no dimming function. In the second embodiment, dimming is performed using an external dimmer. However, not only dimming but also dimming can be performed using a remote control for remote operation. A configuration having a color (adjusting the emission color to a desired color) function may be employed.
  • FIG. 7 is a cross-sectional view of the illumination device 100 of the fourth embodiment
  • FIG. 8 is a plan view showing an example of the structure of the light emitting surface of the light source module 40 of the fourth embodiment.
  • LED modules 42 and 43 having different emission colors
  • a remote control light receiving unit 45 that receives a signal from a remote terminal such as a remote control, and the like are provided. Details of the fourth embodiment will be described below.
  • the light source module 40 includes a plurality of LED modules 42 and 43 having different emission colors, which are alternately separated in appropriate lengths on a substantially circular substrate 41 made of an aluminum alloy or the like. It is. In the example of FIG. 8, three LED modules 42 and 43 are used, but the number and arrangement of the LED modules 42 and 43 are not limited to the example of FIG. Depending on the case, it is possible to appropriately change the number or make the arrangement substantially rectangular.
  • the substrate 41 may be ceramic.
  • the LED module 42 can emit white light, for example, and the LED module 43 can emit light bulb color.
  • the emission color is not limited to these, and may be other colors such as red, green, and blue.
  • a remote control light receiving unit 45 is disposed at the center of the substantially circular substrate 41. As shown in FIG. 8, in the light bulb-type lighting device 100, the portion that can be visually recognized in a state of being attached to a lighting fixture or the like is only the translucent portion 50. For example, in order for a user to perform a remote operation with a remote controller, the remote controller light receiving unit 45 needs to be provided in an area that is visually recognized as the translucent unit 50. Then, by providing the LED modules 42 and 43 around the remote control light receiving unit 45 so as to surround the remote control light receiving unit 45, the lighting device 100 can be reduced in size.
  • FIG. 9 is a block diagram illustrating a configuration of the power supply unit 30 according to the fourth embodiment.
  • the power supply unit 30 requires a noise filter circuit 31 for removing noise intruding from a commercial power supply, etc., a rectifier circuit 32 that rectifies an AC voltage and converts it into a DC voltage, and a DC voltage output from the rectifier circuit 32
  • a DC / DC converter 33 for converting the direct current voltage into a direct current voltage
  • a PWM control circuit 34 for controlling the current supplied to the LED modules 42 and 43 by performing pulse width modulation on the direct current voltage output from the DC / DC converter 33
  • a control microcomputer 35 that controls the power supply unit 30, a current-voltage detection circuit 36 that detects a current flowing through the LED module 42 and an applied voltage, and a current voltage that detects a current flowing through the LED module 43 and an applied voltage
  • a detection circuit 37 and the like are provided.
  • the remote control light receiving unit 45 receives infrared rays from an infrared LED incorporated in a remote control (not shown) operated by the user, extracts a signal transmitted from the remote control, and outputs the extracted signal to the control microcomputer 35. .
  • the signal transmitted from the remote controller is, for example, turning on and off the light source, dimming (for example, 70%, 50%, 30%, etc.), and toning (for example, adjusting the emission color stepwise from white to light bulb color) Is to do.
  • FIG. 10A and 10B are explanatory diagrams showing an example of signals received by the remote control light receiving unit 45.
  • FIG. FIG. 10A shows a signal transmitted from the remote controller on the signal transmission side, that is, a signal received by the remote controller light receiving unit 45
  • FIG. 10B shows an output state of the remote controller light receiving unit 45.
  • the signal transmitted from the remote controller has a carrier frequency of 38 kHz and a period of about 26 ⁇ s.
  • the carrier frequency is not limited to 38 kHz, and may be another frequency, for example, 40 kHz.
  • the remote control light receiving unit 45 On the remote control side, when the blinking of the infrared LED is repeated at a period of 26 ⁇ s for a predetermined time T, the remote control light receiving unit 45 outputs a high level (H) electric signal. On the remote control side, when the infrared LED is turned off for a predetermined time T, the remote control light receiving unit 45 outputs a low level (L) electric signal.
  • H high level
  • L low level
  • the control microcomputer 35 outputs, to the DC / DC converter 33 and the PWM control circuit 34, control signals for turning on, off, dimming, and adjusting the light source based on the signal output from the remote control light receiving unit 45. .
  • control microcomputer 35 generates a control signal for maintaining the light source at a predetermined light intensity based on the detection result output from the current / voltage detection circuits 36 and 37, and the DC / DC converter 33 and the PWM control circuit 34. Output to.
  • the PWM control circuit 34 acquires the control signal output from the control microcomputer 35 and performs PWM control on the LED modules 42 and 43 in accordance with the acquired control signal.
  • the structure which provides a PWM control circuit separately with respect to each LED module 42 and 43 may be sufficient.
  • the PWM control circuit 34 performs PWM control using an arbitrary PWM frequency within a range of 300 Hz to 3 kHz, for example, which is a frequency band in which interference is unlikely to occur with a carrier frequency (for example, 38 kHz) of a signal transmitted by the remote controller using infrared rays. It can be carried out.
  • a carrier frequency for example, 38 kHz
  • FIG. 11 is an explanatory diagram showing the relationship between the PWM frequency and the reach of the signal from the remote controller.
  • the horizontal axis indicates the PWM frequency
  • the vertical axis indicates the reach distance of the signal from the remote controller.
  • the reach distance is the distance between the remote controller and the remote controller light receiving unit 45 when the signal from the remote controller can be reliably received, and is preferably 7 m or more in actual use.
  • the reachable distance can be secured at 7 m or more. Further, if the PWM frequency is 200 kHz or more, the reach distance can be ensured to be 7 m or more.
  • the PMW frequency be in the range of 300 Hz to 3 kHz.
  • the PWM frequency is set to 300 Hz to 3 kHz.
  • the remote control light receiving unit 45 is provided so as to receive an infrared signal for remote operation from the side from which the light is emitted from the LED modules 42 and 43, malfunction of remote operation using infrared rays is prevented. Can be prevented.
  • the lighting device can be reduced in size, and the signal for remote operation is turned on by the PWM control. It is possible to suppress the influence of the operation and to prevent the malfunction of the remote operation.
  • the PWM frequency can be set to 200 kHz or higher, there is a possibility that heat generated by a switching element such as an FET used in the PWM control circuit 34 may increase, and the above-described range of 300 Hz to 3 kHz is more preferable.
  • FIG. 12 is an explanatory diagram illustrating an example of toning of the illumination device 100 according to the fourth embodiment.
  • the horizontal axis indicates time
  • the vertical axis indicates the current flowing through each LED module 42, 43.
  • the LED module 42 is a white LED module
  • the LED module 43 is a light bulb color LED module.
  • the white LED module The (LED module 42) is turned on at a duty ratio of 100%, and the light bulb color LED module (LED module 43) is turned off.
  • the control microcomputer 35 accepts an operation to change the illumination color (the emission color of the entire illumination device 100) from white to a light bulb color side through the remote control light receiving unit 45, state A2 in FIG. As shown, the white LED module (LED module 42) is lit at a duty ratio of 75%, and the light bulb color LED module (LED module 43) is lit at a duty ratio of 25%.
  • the duty ratio is a ratio of a period during which a current flows through the LED module in one cycle.
  • the illumination color is an intermediate color between white and white.
  • the control microcomputer 35 accepts an operation to change the illumination color (the emission color of the illumination device 100 as a whole) to neutral white via the remote control light receiving unit 45, as shown in the state A3 in FIG.
  • the white LED module (LED module 42) is lit at a duty ratio of 50%
  • the light bulb color LED module (LED module 43) is lit at a duty ratio of 50%.
  • the illumination color is neutral white.
  • the control microcomputer 35 receives an operation via the remote control light-receiving unit 45 to change the illumination color (the emission color of the entire illumination device 100) from the neutral white to the light bulb color side, the state shown in FIG. As shown in A4, the white LED module (LED module 42) is lit at a duty ratio of 25%, and the light bulb color LED module (LED module 43) is lit at a duty ratio of 75%. In this state, the illumination color becomes an intermediate color between the daylight white color and the light bulb color.
  • the control microcomputer 35 receives an operation for changing the illumination color (the emission color of the entire illumination device 100) to the light bulb color via the remote control light receiving unit 45, as shown in a state A5 in FIG.
  • the white LED module (LED module 42) is turned off, and the light bulb color LED module (LED module 43) is turned on with a duty ratio of 100%. In this state, the illumination color becomes a light bulb color.
  • the control microcomputer 35 performs control so that the LED modules 42 and 43 having different emission colors do not light up at the same time (lighting time, that is, PWM control on-time does not overlap). That is, when the white LED module is on, the light bulb color LED module is turned off, and when the light bulb color LED module is on, the white LED module is turned off. Thereby, the light emission color can be adjusted without changing the current supplied to the LED modules 42 and 43 to a predetermined value (current value supplied to the LED module of one light emission color) or more.
  • the lighting color can be changed to a desired emission color (color temperature) in the range of white, daylight, light bulb, etc. by changing the proportion of lighting time of each color LED module.
  • a desired emission color color temperature
  • An optimal lighting environment can be realized according to the scene and user's preference.
  • FIG. 13 is an explanatory diagram illustrating an example of light control of the illumination device 100 according to the fourth embodiment.
  • the horizontal axis represents time
  • the vertical axis represents the current flowing through each LED module 42, 43.
  • the LED module 42 is a white LED module
  • the LED module 43 is a light bulb color LED module.
  • the control microcomputer 35 When the control microcomputer 35 receives an operation to set the brightness to all lamps (100% dimming) after setting the illumination color to, for example, neutral white through the remote control light receiving unit 45, the control microcomputer 35 in FIG. As shown in state B1, the white LED module (LED module 42) is lit at a duty ratio of 50%, and the light bulb color LED module (LED module 43) is lit at a duty ratio of 50%. In this state, since the LED module of any color is lit for one cycle, the dimming is 100%.
  • the white LED module (LED module 42) is lit at a duty ratio of 35% as shown in state B2 of FIG.
  • the LED module (LED module 43) is lit at a duty ratio of 35%. In this state, since the LED module of any color is lit and the period is 70% for one cycle, the dimming is 70%.
  • the control microcomputer 35 When the control microcomputer 35 accepts an operation to further reduce the brightness, as shown in the state B3 of FIG. 13, the control microcomputer 35 lights the white LED module (LED module 42) with a duty ratio of 25% and also the light bulb color.
  • the LED module (LED module 43) is lit at a duty ratio of 25%. In this state, the LED module of any color is lit for one period and the period is 50%, so that the light control is 50%. The same applies to other emission colors.
  • control microcomputer 35 performs light control by controlling the length of the lighting time while keeping the ratio of the lighting times of the light sources having different emission colors constant. Thereby, toning and light control can be performed simultaneously, and a more optimal lighting environment can be realized according to the usage scene of the lighting device 100 and the user's preference.
  • FIG. 14 is an explanatory diagram showing another example of light control of the lighting device 100 according to the fourth embodiment.
  • the horizontal axis represents time
  • the vertical axis represents the current flowing through the LED modules 42 and 43.
  • the LED module 42 is a white LED module
  • the LED module 43 is a light bulb color LED module.
  • the control microcomputer 35 When the control microcomputer 35 accepts an operation for setting the brightness to all lamps (100% light control) after setting the illumination color to, for example, daylight white via the remote control light receiving unit 45, the control microcomputer 35 in FIG. As shown in the state C1, a predetermined value of current is passed through the white LED module (LED module 42) and the light bulb color LED module. In this state, dimming is 100%.
  • the duty ratio is 50%, but is not limited to this.
  • the control microcomputer 35 When the control microcomputer 35 receives an operation to slightly reduce the brightness, the control microcomputer 35 causes the white LED module (LED module 42) and the light bulb color LED module (LED module 43) to flow as shown in the state C2 of FIG.
  • the current is made smaller than a predetermined value. In this state, since the current flowing through each LED module is 75% of the predetermined value, the dimming is 75%.
  • control microcomputer 35 When the control microcomputer 35 receives an operation to further reduce the brightness, as shown in a state C3 in FIG. 14, the control microcomputer 35 flows the white LED module (LED module 42) and the light bulb color LED module (LED module 43). Reduce the current further. In this state, since the current flowing through each LED module is 50% of the predetermined value, dimming is 50%. The same applies to other emission colors.
  • control microcomputer 35 performs light control by controlling the amount of current supplied during the lighting time while keeping the length of the lighting time of the LED modules 42 and 43 having different emission colors constant. Thereby, toning and light control can be performed simultaneously, and a more optimal lighting environment can be realized according to the usage scene of the lighting device and the user's preference.
  • the remote control light receiving unit 45 is provided on the surface of the substrate 41.
  • the influence of heat generated in the LED modules 42 and 43 being transmitted to the remote control light receiving unit 45 through the substrate 41 It can be set as the structure which prevents.
  • FIG. 15 is a plan view showing an example of the structure of the light emitting surface of the light source module 40 of the fifth embodiment
  • FIG. 16 is a cross-sectional view of the main part showing an example of the arrangement of the remote control light receiving section 45 of the fifth embodiment.
  • the substrate 41 of the light source module 40 is provided with a circular hole 44 in the center, and a plurality of LED modules 42 and 43 having different emission colors are alternately and annularly arranged around the hole 44 on the substrate 41. Long-separated. Further, the diameter of the hole 44 is larger than the dimension of the remote control light receiving unit 45.
  • the remote control light receiving unit 45 is arranged in the center of the hole 44 so as to be isolated from the substrate 41.
  • the remote control light receiving unit 45 is mounted on the heat radiating plate 20 and provided on the substrate 46 separated from the substrate 41.
  • the remote control light receiving unit 45 that receives an external signal is thermally separated from the LED modules 42 and 43 and physically separated so that the heat from the LED modules 42 and 43 is received by the remote control.
  • the portion 45 can be prevented from conducting heat. Further, even when the remote control light receiving unit 45 and the LED modules 42 and 43 are physically connected, heat is conducted from the LED modules 42 and 43 to the remote control light receiving unit 45 through the heat sink 20 between them. It is possible to prevent heat from being transmitted to the remote control light receiving unit 45 by being radiated on the way. Thereby, deterioration or failure of the remote control light receiving unit 45 can be prevented.
  • the remote control light receiving unit 45 is provided separately from the substrate 41 on which the LED modules 42 and 43 are mounted, heat generated in the LED modules 42 and 43 is transferred to the remote control light receiving unit 45 through the substrate 41. It becomes difficult to conduct, and deterioration or failure of the remote control light receiving unit 45 can be prevented.
  • FIG. 17 is a cross-sectional view of the main part showing another example of the arrangement of the remote control light receiving unit 45 of the fifth embodiment.
  • a plurality of LED modules 42 and 43 are alternately separated on one surface of the substrate 41 and mounted in an annular shape, and the substrate 41 is approximately at the center of the region surrounded by the LED modules 42 and 43.
  • An opening 48 is provided, and a remote control light receiving unit 45 provided on a separate substrate 46 physically separated from the substrate 41 is provided in the vicinity of the opening 48.
  • the substrate 46 is supported by an appropriate support material.
  • the remote control light receiving unit 45 can be provided at substantially the center of the area where the LED modules 42 and 43 are disposed without being physically connected to the substrate 41 on which the LED modules 42 and 43 are mounted.
  • the remote control light receiving unit 45 can be provided on the light emitting surface 100, and the apparatus can be downsized.
  • the remote control light receiving unit 45 When the remote control light receiving unit 45 is provided in the vicinity of the opening 48, the remote control light receiving unit 45 can be provided at a position surrounded by the inner peripheral surface of the substrate 41 and the heat sink 20, or the plate surface of the substrate 41 or the heat sink 20. It can also be provided at a position separated from the opening 48 toward the power supply unit 30 along the direction intersecting the direction. Thereby, the remote control light-receiving part 45 can be separated further from the LED modules 42 and 43 and the board
  • FIG. 18 is a cross-sectional view of the main part showing another example of the arrangement of the remote control light receiving unit 45 of the fifth embodiment.
  • a light guide member 47 for guiding infrared light from the remote control to the remote control light receiving unit 45 is provided.
  • the light guide member 47 is made of glass or synthetic resin and has a substantially cylindrical shape.
  • One side has a curved surface (spherical surface) that protrudes outward so as to receive light from the remote control, and the other side.
  • the light guide member 47 (the end surface on the remote control light receiving unit 45 side) is not limited to a concave curved surface, and may be planar.
  • the light emitted from the LED is diffused by the light diffusing member when passing through the light transmitting portion, so that the light distribution characteristic can be widened with a simple configuration. .
  • the light bulb type lighting device has been described.
  • the shape of the lighting device is not limited to the light bulb type, and may be another shape.
  • the illuminating device provided with the LED module as the light source has been described, the light source is not limited to the LED module, and other light sources such as an organic EL may be used as long as the light emitting element has surface light emission.

Abstract

Provided is an illuminating device having wide light distribution characteristics with a simple configuration. The illuminating device is an LED bulb, and in visual appearance, the device is provided with: a ferrule (10) as a power supply connecting section which is fitted in an external socket and is electrically connected with a commercial power supply; a heat dissipating section (13); a connecting body which connects the ferrule (10) and the heat dissipating section (13); a light transmitting section (50) which is a hollow substantially semispherical shell; and a disc-like heat dissipating plate (20) which has an LED module mounted thereon and is thermally connected with the heat dissipating section (13). The light transmitting section (50) is composed of a milky white glass, and a light diffusing member (50a) for diffusing light emitted from the LED module (42) is added to the glass.

Description

照明装置Lighting device
　本発明は、発光ダイオードなどの光源を有する照明装置に関し、特に電球型の形状をなした照明装置に関する。 The present invention relates to a lighting device having a light source such as a light emitting diode, and more particularly to a lighting device having a light bulb shape.
　近年、発光ダイオード（ＬＥＤ）を光源とする照明装置が様々な用途向けに開発されており、白熱電球や蛍光灯等の従来の光源を用いた照明装置に対する置換えが行われつつある。また、このような発光ダイオードを光源とする照明装置は、白熱電球に比べて長寿命化、省エネ化を図ることができるため、白熱電球に置き換えることができる電球型の照明装置の開発も行われている。 Recently, lighting devices using light emitting diodes (LEDs) as light sources have been developed for various applications, and replacement of lighting devices using conventional light sources such as incandescent bulbs and fluorescent lamps is being performed. In addition, lighting devices using light emitting diodes as light sources can achieve longer life and energy savings compared to incandescent bulbs, and therefore bulb-type lighting devices that can be replaced with incandescent bulbs have also been developed. ing.
　例えば、展開した状態が平面状であってカゴ型に曲げ可能なフレキシブル回路基板、このフレキシブル回路基板にカゴ型に均等配置した複数のＬＥＤなどを備えることにより、従来、ＬＥＤの欠点であった指向性の問題を解決して従来の白熱電球に近い広い配光特性を有するＬＥＤ電球が開示されている（特許文献１参照）。 For example, by providing a flexible circuit board that is flat and can be bent into a cage shape, and a plurality of LEDs that are evenly arranged in a cage shape on the flexible circuit board, the orientation that has conventionally been a drawback of LEDs An LED bulb having a wide light distribution characteristic close to that of a conventional incandescent bulb by solving the problem of sexuality has been disclosed (see Patent Document 1).
特開２００３－５９３０５号公報JP 2003-59305 A
　しかしながら、特許文献１のＬＥＤ電球にあっては、多数の回路基板が必要になるとともに、各回路基板を均一に湾曲させて全体として球状に形成する必要があり、製造工程が複雑になるという問題があり、簡便な構成で配光を広げることが望まれていた。 However, in the LED bulb of Patent Document 1, a large number of circuit boards are required, and each circuit board must be uniformly curved and formed into a spherical shape as a whole, which complicates the manufacturing process. Therefore, it has been desired to widen the light distribution with a simple configuration.
　本発明は斯かる事情に鑑みてなされたものであり、簡便な構成で広い配光特性を実現することができる照明装置を提供することを目的とする。 This invention is made | formed in view of such a situation, and it aims at providing the illuminating device which can implement | achieve a wide light distribution characteristic with a simple structure.
　本発明に係る照明装置は、光源部と、該光源部を覆い、該光源部からの光を透過する透光部とを備える照明装置において、前記透光部は、光拡散部材を有することを特徴とする。 An illuminating device according to the present invention includes a light source unit and a light transmitting unit that covers the light source unit and transmits light from the light source unit, and the light transmitting unit includes a light diffusing member. Features.
　本発明にあっては、光源部からの光を透過する透光部は、光拡散部材を有する。光拡散部材は、例えば、結晶構造を有し、その光学的性質は、例えば、屈折率が大きく、光吸収能が小さく、光散乱能が高いものであればよい。例えば、透明な樹脂製又はガラス製の透光部に蛍光体などの結晶構造を有する顔料を添加してもよく、あるいは、透光部の表面に顔料を塗布してもよい。これにより、光源として面発光の性質を有する発光ダイオード（ＬＥＤ）を用いる場合に、光の指向性が狭いときでも、ＬＥＤから発せられた光は、透光部を透過する際に光拡散部材で拡散されるので、簡便な構成で配光特性を広くすることができる。 In the present invention, the translucent part that transmits light from the light source part has a light diffusing member. The light diffusing member has, for example, a crystal structure, and the optical properties thereof may be, for example, those having a large refractive index, a small light absorption ability, and a high light scattering ability. For example, a pigment having a crystal structure such as a phosphor may be added to a transparent resin-made or glass-made transparent part, or a pigment may be applied to the surface of the transparent part. As a result, when a light emitting diode (LED) having the property of surface emission is used as the light source, even when the directivity of light is narrow, the light emitted from the LED is transmitted by the light diffusing member when passing through the light transmitting portion. Since it is diffused, the light distribution characteristic can be widened with a simple configuration.
　本発明に係る照明装置は、前記光拡散部材は、蛍光体であることを特徴とする。 The illumination device according to the present invention is characterized in that the light diffusion member is a phosphor.
　本発明にあっては、光拡散部材は、蛍光体である。ＬＥＤから発せられた光は、透光部を透過する際に蛍光体で拡散されるので、簡便な構成で配光特性を広くすることができる。 In the present invention, the light diffusing member is a phosphor. Since the light emitted from the LED is diffused by the phosphor when passing through the light transmitting portion, the light distribution characteristic can be widened with a simple configuration.
　本発明に係る照明装置は、前記透光部は、前記蛍光体を添加してなることを特徴とする。 The illuminating device according to the present invention is characterized in that the light transmitting part is formed by adding the phosphor.
　本発明にあっては、透光部は、蛍光体を添加してなる。これにより、ＬＥＤから発せられた光は、透光部を透過する際に蛍光体で拡散されるので、簡便な構成で配光特性を広くすることができる。 In the present invention, the translucent part is formed by adding a phosphor. Thereby, since the light emitted from the LED is diffused by the phosphor when passing through the light transmitting portion, the light distribution characteristic can be widened with a simple configuration.
　本発明に係る照明装置は、前記透光部は、前記光源からの光が入射する入射面又は該光が透過する透過面の少なくとも一方に前記蛍光体を塗布してなることを特徴とする。 The illuminating device according to the present invention is characterized in that the translucent portion is formed by applying the phosphor on at least one of an incident surface on which light from the light source is incident and a transmissive surface on which the light is transmitted.
　本発明にあっては、透光部は、光源からの光が入射する入射面又は光が透過する透過面の少なくとも一方に蛍光体を塗布してなる。これにより、ＬＥＤから発せられた光は、透光部を透過する際に透光部の内側の面又は外側の面で拡散されるので、簡便な構成で配光特性を広くすることができる。 In the present invention, the light transmitting portion is formed by applying a phosphor to at least one of an incident surface on which light from a light source is incident and a transmitting surface on which light is transmitted. Thereby, since the light emitted from the LED is diffused on the inner surface or the outer surface of the light transmitting part when passing through the light transmitting part, the light distribution characteristic can be widened with a simple configuration.
　本発明に係る照明装置は、前記光源部は、回路基板と、該回路基板に実装され、平面状の発光面を有する発光ダイオードとを備え、前記透光部は、中空の略半球殻をなすガラス製であることを特徴とする。 In the illumination device according to the present invention, the light source unit includes a circuit board and a light emitting diode mounted on the circuit board and having a planar light emitting surface, and the light transmitting part forms a hollow substantially hemispherical shell. It is made of glass.
　本発明にあっては、光源部は、回路基板と、回路基板に実装され、平面状の発光面を有する発光ダイオードとを備え、透光部は、中空の略半球殻をなすガラス製である。これにより、発光ダイオードを使用した配光特性の広い電球型の照明装置を提供することができる。 In the present invention, the light source unit includes a circuit board and a light emitting diode mounted on the circuit board and having a planar light emitting surface, and the light transmitting part is made of glass having a hollow, substantially hemispherical shell. . As a result, a light bulb-type lighting device using a light emitting diode and having a wide light distribution characteristic can be provided.
　本発明によれば、簡便な構成で配光特性を広くすることができる。 According to the present invention, light distribution characteristics can be widened with a simple configuration.
実施の形態１の照明装置の外観図である。1 is an external view of a lighting device according to Embodiment 1. FIG. 実施の形態１の照明装置の要部分解斜視図である。FIG. 3 is an exploded perspective view of a main part of the lighting device according to the first embodiment. 実施の形態１の照明装置の断面図である。FIG. 3 is a cross-sectional view of the lighting device according to the first embodiment. 光源モジュールの発光面の構造例を示す平面図である。It is a top view which shows the structural example of the light emission surface of a light source module. 実施の形態２の透光部の要部断面図である。FIG. 6 is a cross-sectional view of a main part of a light transmitting part according to a second embodiment. 実施の形態３の照明装置の設置例を示す模式図である。6 is a schematic diagram illustrating an installation example of a lighting device according to Embodiment 3. FIG. 実施の形態４の照明装置の断面図である。It is sectional drawing of the illuminating device of Embodiment 4. 実施の形態４の光源モジュールの発光面の構造例を示す平面図である。FIG. 10 is a plan view illustrating a structure example of a light emitting surface of a light source module according to a fourth embodiment. 実施の形態４の電源部の構成を示すブロック図である。FIG. 10 is a block diagram illustrating a configuration of a power supply unit according to a fourth embodiment. リモコン受光部で受信する信号の一例を示す説明図である。It is explanatory drawing which shows an example of the signal received with a remote control light-receiving part. リモコン受光部で受信する信号の一例を示す説明図である。It is explanatory drawing which shows an example of the signal received with a remote control light-receiving part. ＰＷＭ周波数とリモコンからの信号の到達距離との関係を示す説明図である。It is explanatory drawing which shows the relationship between a PWM frequency and the reach | attainment distance of the signal from a remote control. 実施の形態４の照明装置の調色の例を示す説明図である。It is explanatory drawing which shows the example of the toning of the illuminating device of Embodiment 4. 実施の形態４の照明装置の調光の一例を示す説明図である。It is explanatory drawing which shows an example of the light control of the illuminating device of Embodiment 4. 実施の形態４の照明装置の調光の他の例を示す説明図である。It is explanatory drawing which shows the other example of the light control of the illuminating device of Embodiment 4. 実施の形態５の光源モジュールの発光面の構造例を示す平面図である。FIG. 10 is a plan view showing a structural example of a light emitting surface of a light source module according to a fifth embodiment. 実施の形態５のリモコン受光部の配置の一例を示す要部断面図である。It is principal part sectional drawing which shows an example of arrangement | positioning of the remote control light-receiving part of Embodiment 5. 実施の形態５のリモコン受光部の配置の他の例を示す要部断面図である。It is principal part sectional drawing which shows the other example of arrangement | positioning of the remote control light-receiving part of Embodiment 5. FIG. 実施の形態５のリモコン受光部の配置の他の例を示す要部断面図である。It is principal part sectional drawing which shows the other example of arrangement | positioning of the remote control light-receiving part of Embodiment 5. FIG.
実施の形態１
　以下、本発明をその実施の形態を示す図面に基づいて説明する。図１は実施の形態１の照明装置１００の外観図であり、図２は実施の形態１の照明装置１００の要部分解斜視図であり、図３は実施の形態１の照明装置１００の断面図である。図１に示すように、照明装置１００は、４０Ｗ、６０Ｗなどの電球型をなすＬＥＤ電球であり、外観視において、外部のソケットに嵌めて商用電源に電気的に接続するための電源接続部としての口金１０、放熱部１３、口金１０と放熱部１３とを連結する連結体１１、中空の略半球殻の透光部５０、後述するＬＥＤモジュールを載置し、放熱部１３と熱的に接続された円板状の放熱板２０などを備えている。 Embodiment 1
Hereinafter, the present invention will be described with reference to the drawings illustrating embodiments thereof. FIG. 1 is an external view of the illumination device 100 according to the first embodiment, FIG. 2 is an exploded perspective view of a main part of the illumination device 100 according to the first embodiment, and FIG. 3 is a cross-sectional view of the illumination device 100 according to the first embodiment. FIG. As shown in FIG. 1, the lighting device 100 is an LED bulb having a bulb type such as 40 W, 60 W, etc., and as a power supply connection portion that fits into an external socket and is electrically connected to a commercial power source in appearance. The base 10, the heat radiating portion 13, the coupling body 11 that connects the base 10 and the heat radiating portion 13, the hollow, substantially hemispherical translucent portion 50, and the LED module to be described later are placed and thermally connected to the heat radiating portion 13. The disc-shaped heat sink 20 is provided.
　図２及び図３に示すように、放熱板２０には、基板４１の表面にＬＥＤモジュール４２が実装された光源モジュール４０をねじ２１で取り付けてある。光源モジュール４０と放熱板２０との間は、熱伝導効率を向上させるために熱伝導シートや高熱伝導性の樹脂を塗布することにより、光源モジュール４０で発生した熱を放熱板２０、及び放熱部１３を介して外部へ放熱することができる。 As shown in FIGS. 2 and 3, a light source module 40 in which an LED module 42 is mounted on the surface of a substrate 41 is attached to the heat radiating plate 20 with screws 21. Between the light source module 40 and the heat radiating plate 20, heat generated in the light source module 40 is radiated from the heat radiating plate 20 and the heat radiating unit by applying a heat conductive sheet or a highly heat conductive resin in order to improve the heat conduction efficiency. The heat can be radiated to the outside through 13.
　放熱部１３は、例えば、アルミニウム等の軽量かつ熱伝導性の高い金属からなり、略円筒形状をしている。また、放熱部１３は、円筒の外周面に複数の放熱溝を有しており、光源モジュール４０から放熱部１３に伝達される熱は放熱溝を利用して外周面から外部の空気に放熱される。なお、放熱部１３と放熱板２０との間には、水分が内部に侵入しないように合成ゴム製の防水用パッキン１９を設けている。 The heat dissipating part 13 is made of, for example, a lightweight and highly heat conductive metal such as aluminum and has a substantially cylindrical shape. The heat dissipating part 13 has a plurality of heat dissipating grooves on the outer peripheral surface of the cylinder, and heat transmitted from the light source module 40 to the heat dissipating part 13 is dissipated from the outer peripheral surface to the outside air using the heat dissipating grooves. The In addition, a waterproof packing 19 made of synthetic rubber is provided between the heat radiating portion 13 and the heat radiating plate 20 so that moisture does not enter the inside.
　放熱部１３は、内部に空洞が形成されており、放熱部１３の内部には、配線２２を介して光源モジュール４０のＬＥＤモジュール４２へ所要の電力（電圧、電流）を供給するための電源部３０、電源部３０を収容する収容部１５などを配設してある。また、電源部３０と口金１０との間には、商用電源を電源部３０に供給するための電源線１７を設けている。 The heat radiating portion 13 has a cavity formed therein, and a power supply portion for supplying required power (voltage, current) to the LED module 42 of the light source module 40 via the wiring 22 inside the heat radiating portion 13. 30 and an accommodating portion 15 for accommodating the power source portion 30 are arranged. Further, a power line 17 for supplying commercial power to the power supply unit 30 is provided between the power supply unit 30 and the base 10.
　放熱部１３と連結体１１との間には、水分が内部に侵入しないように合成ゴム製の防水用リング材１２を設けてあり、放熱部１３と連結体１１は、ねじ１４により固定されている。 A waterproof ring 12 made of synthetic rubber is provided between the heat radiating portion 13 and the connecting body 11 so that moisture does not enter the inside. The heat radiating portion 13 and the connecting body 11 are fixed by screws 14. Yes.
　また、図３に示すように、収容部１５に収容された電源部３０の周囲には、電源部３０で発生した熱を放熱部１３及び口金１０へ効率よく熱伝導させるために、高伝導率の合成樹脂２５（例えば、ポリウレタン樹脂など）を充填してある。また、合成樹脂２５は、高い電気絶縁性、低い透水性、難燃性を有するものが好ましい。 Further, as shown in FIG. 3, in order to efficiently conduct heat generated in the power supply unit 30 to the heat radiating unit 13 and the base 10 around the power supply unit 30 accommodated in the accommodation unit 15, high conductivity is provided. Of synthetic resin 25 (for example, polyurethane resin). The synthetic resin 25 preferably has high electrical insulation, low water permeability, and flame retardancy.
　合成樹脂２５は、放熱部１３内部の電気的配線が終了し、放熱部１３と口金１０が機械的に接合された状態で、放熱部１３の内部に充填する。なお、合成樹脂２５は、充填時には液体状をなす。合成樹脂２５を充填した後、所要の温度で硬化させる。硬化後の合成樹脂２５は、口金１０の内面と接着するとともに、放熱部１３の内面とも接着する。これにより、口金１０の接合部分からの水分の浸入を一層確実に防止することができる。 The synthetic resin 25 is filled in the heat radiating portion 13 in a state where the electrical wiring inside the heat radiating portion 13 is finished and the heat radiating portion 13 and the base 10 are mechanically joined. The synthetic resin 25 is in a liquid state when filled. After filling with the synthetic resin 25, it is cured at a required temperature. The cured synthetic resin 25 adheres to the inner surface of the base 10 and also to the inner surface of the heat radiating portion 13. Thereby, it is possible to more reliably prevent moisture from entering from the joint portion of the base 10.
　また、合成樹脂２５は、高い電気的絶縁性を有しているので、放熱部１３と電源部３０の充電部とが絶縁破壊して短絡することを確実に防止することができる。また、合成樹脂２５は、高熱伝導率を有しているので、電源部３０で発生した熱は、放熱部１３のみならず、合成樹脂２５を介して熱的に接続された口金１０からも放熱されるので、電源部３０の温度上昇を抑制して、電源部３０で使用されている電気部品の信頼性を向上させることができる。 Further, since the synthetic resin 25 has high electrical insulation, it is possible to reliably prevent the heat dissipation part 13 and the charging part of the power supply part 30 from being broken down due to dielectric breakdown. Further, since the synthetic resin 25 has a high thermal conductivity, the heat generated in the power supply unit 30 is dissipated not only from the heat radiating unit 13 but also from the base 10 thermally connected through the synthetic resin 25. Thus, the temperature rise of the power supply unit 30 can be suppressed, and the reliability of the electrical components used in the power supply unit 30 can be improved.
　光源モジュール４０の発光面側には、ねじ２１で反射板２３を取り付けてある。反射板２３は、ＬＥＤモジュール４２が配置された位置に対応する箇所に、ＬＥＤモジュール４２の寸法と略同寸法の挿通穴を設けてあり、該挿通穴にＬＥＤモジュール４２を挿通させた状態で取り付けられるようになっている。なお、反射板２３は必須ではなく省略することもできる。 A reflection plate 23 is attached to the light emitting surface side of the light source module 40 with screws 21. The reflection plate 23 is provided with an insertion hole having a dimension substantially the same as the dimension of the LED module 42 at a position corresponding to the position where the LED module 42 is disposed, and the LED module 42 is inserted into the insertion hole. It is supposed to be. The reflecting plate 23 is not essential and can be omitted.
　透光部５０は、乳白色のガラス製であって放熱板２０に接着剤により固定されている。なお、透光部５０は、ガラス製に限定されるものではなく、乳白色のポリカーボネート樹脂などを用いることもできる。なお、透光部５０がポリカーボネート樹脂製である場合には、ネジを切ることにより、放熱板２０に螺合係止することができる。 The translucent part 50 is made of milky white glass, and is fixed to the heat sink 20 with an adhesive. In addition, the translucent part 50 is not limited to glass, Milky white polycarbonate resin etc. can also be used. In addition, when the translucent part 50 is a product made from polycarbonate resin, it can be screwed and locked to the heat sink 20 by cutting a screw.
　透光部５０には、ＬＥＤモジュール４２（光源モジュール４０）からの光を拡散させるための光拡散部材５０ａを添加してある。光拡散部材５０ａは、例えば、結晶構造を有し、その光学的性質は、例えば、屈折率が大きく、光吸収能が小さく、光散乱能が高いものであればよい。例えば、蛍光体などの結晶構造を有する顔料を添加することができる。また、光拡散部材５０ａの添加比率は、例えば、数％程度でよい。蛍光体は、例えば、３Ｃａ3 （ＰＯ4 ）2 Ｃａ（Ｆ、Ｃｌ）2 ＳｂＭｎを用いることができる。 A light diffusing member 50 a for diffusing light from the LED module 42 (light source module 40) is added to the light transmitting part 50. The light diffusing member 50a has, for example, a crystal structure, and its optical properties may be, for example, those having a large refractive index, a small light absorption ability, and a high light scattering ability. For example, a pigment having a crystal structure such as a phosphor can be added. The addition ratio of the light diffusing member 50a may be about several percent, for example. For example, 3Ca 3 (PO 4 ) 2 Ca (F, Cl) 2 SbMn can be used as the phosphor.
　これにより、光源として面発光の性質を有するＬＥＤモジュール４２を用いる場合に、ＬＥＤモジュール４２の光の指向性が狭いときでも、ＬＥＤモジュール４２から発せられた光は、透光部５０を透過する際に光拡散部材５０ａで拡散されるので、簡便な構成で配光特性を広くすることができる。なお、光拡散部材５０ａが蛍光体である場合には、光を拡散させるとともに当該光で励起されて発光する材料でもよい。光拡散部材５０ａ自体も発光することにより、配光をより広げることが可能となる。 As a result, when the LED module 42 having the surface emission property is used as the light source, the light emitted from the LED module 42 passes through the light transmitting part 50 even when the light directivity of the LED module 42 is narrow. Therefore, the light distribution characteristic can be widened with a simple configuration. When the light diffusing member 50a is a phosphor, a material that diffuses light and is excited by the light to emit light may be used. The light diffusing member 50a itself also emits light, so that the light distribution can be further expanded.
　また、透光部５０は、中空の略半球殻をなすので、ＬＥＤモジュール４２（発光ダイオード）を使用した配光特性の広い電球型の照明装置を提供することができる。 Further, since the light transmitting part 50 forms a hollow, substantially hemispherical shell, it is possible to provide a bulb-type lighting device having a wide light distribution characteristic using the LED module 42 (light emitting diode).
　特に、略半球殻の透光部５０の最大径よりも若干縮径した箇所で、透光部５０と放熱板２０とが接合されているので、ＬＥＤモジュール４２から発せられた光が、透光部５０の表面のうち、透光部５０と放熱板２０との接合箇所から最大径までの部分から透過することにより、放熱部１３から口金１０の方へ向かう方向にも放射されるので、さらに配光特性を広くすることができる。 In particular, since the light-transmitting part 50 and the heat sink 20 are joined at a position slightly smaller than the maximum diameter of the light-transmitting part 50 having a substantially hemispherical shell, the light emitted from the LED module 42 is transmitted through the light-transmitting part. Since it is radiated in the direction from the heat dissipating part 13 toward the base 10 by transmitting from the portion from the joint portion of the light transmitting part 50 and the heat radiating plate 20 to the maximum diameter in the surface of the part 50, The light distribution characteristic can be widened.
　図４は光源モジュール４０の発光面の構造例を示す平面図である。光源モジュール４０は、アルミニウム合金などからなる略円形の基板４１上に複数のＬＥＤモジュール４２を環状に適長隔離して配設してある。図４の例では、６個のＬＥＤモジュール４２を配設した構成であるが、ＬＥＤモジュール４２の数や配置は、図４の例に限定されるものではなく、照明装置の仕様や用途に応じて、個数を変更することや、配置を略矩形状にするなど適宜行うことができる。なお、基板４１は、セラミックなどであってもよい。 FIG. 4 is a plan view showing a structural example of the light emitting surface of the light source module 40. In the light source module 40, a plurality of LED modules 42 are annularly arranged on a substantially circular substrate 41 made of an aluminum alloy or the like and separated in an appropriate length. In the example of FIG. 4, six LED modules 42 are arranged. However, the number and arrangement of the LED modules 42 are not limited to the example of FIG. 4, and depend on the specifications and applications of the lighting device. Thus, the number can be changed as appropriate, and the arrangement can be appropriately made, for example, rectangular. The substrate 41 may be ceramic.
　ＬＥＤモジュール４２は、所要の発光色のものを使用することができ、例えば、白色のものを用いることができる。なお、発光色は、白色に限定されるものではなく、昼白色や電球色であってもよい。 The LED module 42 can be of a required emission color, for example, a white one. Note that the emission color is not limited to white, and may be daylight white or a light bulb color.
実施の形態２
　上述の図３の例では、透光部５０に光拡散部材５０ａを添加する構成であったが、これに限定されるものではなく、光拡散部材を塗布する構成とすることもできる。 Embodiment 2
In the example of FIG. 3 described above, the light diffusing member 50a is added to the light transmitting portion 50. However, the present invention is not limited to this, and a light diffusing member may be applied.
　図５は実施の形態２の透光部５１の要部断面図である。透光部５１は、実施の形態１の透光部５０と同様に、乳白色のガラス製であって放熱板２０に接着剤により固定されている。なお、透光部５１は、ガラス製に限定されるものではなく、乳白色のポリカーボネート樹脂などを用いることもできる。なお、透光部５０がポリカーボネート樹脂製である場合には、ネジを切ることにより、放熱板２０に螺合係止することができる。 FIG. 5 is a cross-sectional view of a main part of the translucent part 51 of the second embodiment. The translucent part 51 is made of milky white glass, like the translucent part 50 of the first embodiment, and is fixed to the heat sink 20 with an adhesive. The translucent part 51 is not limited to glass, and milky white polycarbonate resin or the like can also be used. In addition, when the translucent part 50 is a product made from polycarbonate resin, it can be screwed and locked to the heat sink 20 by cutting a screw.
　透光部５０の内側面には、光拡散部材５２を塗布（例えば、焼付け塗布又は静電塗布など）してある。なお、焼付け塗布する場合には、例えば、蛍光体である光拡散材５２を透光部５１の表面に塗布し、常温から１００℃まで約３０分間かけて温度を上昇させて加熱した後に、さらに１５０℃で約３０分間加熱することによって塗布がなされる。また、光拡散部材５２は、実施の形態１と同様、例えば、結晶構造を有し、その光学的性質は、例えば、屈折率が大きく、光吸収能が小さく、光散乱能が高いものであればよい。光拡散部材５２の塗布厚みは１ｍｍ～２ｍｍ程度でよい。光拡散部材５２の厚みが厚すぎると光が透過し難くなるので、上記範囲とすることにより、光を透過させるとともに、拡散も可能となる。これにより、光源として面発光の性質を有するＬＥＤモジュール４２を用いる場合に、ＬＥＤモジュール４２の光の指向性が狭いときでも、ＬＥＤモジュール４２から発せられた光は、透光部５１を透過する際に光拡散部材５２で拡散されるので、簡便な構成で配光特性を広くすることができる。なお、光拡散部材５２の材料や組成によっては、塗布厚みは、１ｍｍ～２ｍｍの範囲に限定されるものではなく、例えば、数１０μｍ程度にすることもできる。 A light diffusing member 52 is applied to the inner side surface of the translucent part 50 (for example, baking application or electrostatic application). In the case of baking application, for example, a light diffusing material 52 that is a phosphor is applied to the surface of the light transmitting portion 51, heated from room temperature to 100 ° C. over about 30 minutes, and further heated. Application is performed by heating at 150 ° C. for about 30 minutes. Similarly to the first embodiment, the light diffusing member 52 has, for example, a crystal structure, and its optical properties are, for example, high refractive index, low light absorption ability, and high light scattering ability. That's fine. The coating thickness of the light diffusing member 52 may be about 1 mm to 2 mm. If the thickness of the light diffusing member 52 is too thick, light is difficult to transmit. Therefore, by setting the above range, light can be transmitted and diffused. As a result, when the LED module 42 having the surface emission property is used as the light source, the light emitted from the LED module 42 passes through the light transmitting portion 51 even when the directivity of light of the LED module 42 is narrow. The light diffusing member 52 diffuses the light distribution characteristics with a simple configuration. Depending on the material and composition of the light diffusing member 52, the coating thickness is not limited to the range of 1 mm to 2 mm, and can be, for example, about several tens of μm.
　なお、図５の例では、光拡散部材５２を透光部５０の内側面に塗布しているが、これに限定されるものではなく、透光部５０の外側面に塗布することもできる。あるいは、透光部５０を二重構造とし、光拡散部材５２よりなる層を間に挟んで透光部５０を構成することもできる。 In the example of FIG. 5, the light diffusing member 52 is applied to the inner side surface of the light transmitting part 50, but is not limited to this, and can be applied to the outer side surface of the light transmitting part 50. Alternatively, the translucent part 50 may have a double structure, and the translucent part 50 may be configured with a layer made of the light diffusion member 52 interposed therebetween.
実施の形態３
　上述の実施の形態１、２においては、照明装置１００は、特定の発光色を有するＬＥＤ電球の構造を有するものであったが、照明装置１００に調光機能を設けることもできる。実施の形態３においては、商用電源と照明装置１００との間の電源線に調光器（不図示）を介装し、該調光器により照明装置１００の照明光の明るさを調整するように構成することができる。 Embodiment 3
In the above-described first and second embodiments, the lighting device 100 has the structure of an LED bulb having a specific emission color, but the lighting device 100 may be provided with a dimming function. In the third embodiment, a dimmer (not shown) is interposed in the power line between the commercial power source and the lighting device 100, and the brightness of the illumination light of the lighting device 100 is adjusted by the dimmer. Can be configured.
　図６は実施の形態３の照明装置１００の設置例を示す模式図である。商用電源には調光器２００を設けてあり、調光器２００の出力側の電源線には、複数の照明装置１００を接続してある。上述したように、照明装置１００は、ＬＥＤモジュール４２を内蔵した電球形状とすることにより、既存の電球に代えて、照明装置１００を置き換えることが可能である。図６において、調光器２００の調光用のつまみ（操作スイッチなど）を回すことにより、広範囲に設置された照明装置１００を一括して調光することができる。また、遠隔操作用のリモコンを用いて、調光器２００に対して信号を送信して照明装置１００を調光させることもできる。なお、照明装置１００は、電源部３０と同様に放熱部１３内部の収容部１５に調光器２００を収容して内蔵する構成としてもよい。 FIG. 6 is a schematic diagram illustrating an installation example of the lighting device 100 according to the third embodiment. The commercial power source is provided with a dimmer 200, and a plurality of lighting devices 100 are connected to the power line on the output side of the dimmer 200. As described above, the lighting device 100 can be replaced with an existing light bulb by replacing the lighting device 100 with a light bulb shape incorporating the LED module 42. In FIG. 6, the lighting device 100 installed over a wide range can be dimmed at once by turning a dimming knob (such as an operation switch) of the dimmer 200. In addition, the lighting device 100 can be dimmed by transmitting a signal to the dimmer 200 using a remote control for remote operation. Note that the lighting device 100 may have a configuration in which the dimmer 200 is housed and housed in the housing portion 15 inside the heat radiating portion 13, similarly to the power supply unit 30.
　次に、実施の形態３における調光方式について説明する。調光器２００は、調光度合い（例えば、１００％～２５％など）に応じて、位相制御された交流電圧を各照明装置１００へ出力する。各照明装置１００では、入力電圧の位相角を検出し、位相角に応じた光量でＬＥＤモジュール４２を点灯させる。例えば、位相角が小さい場合には、ＬＥＤモジュール４２に流す電流を増加させ、位相角が大きくなるに応じて、ＬＥＤモジュール４２に流す電流を減少させることで、位相角に応じた調光を行うことができる。 Next, the dimming method in the third embodiment will be described. The dimmer 200 outputs a phase-controlled AC voltage to each lighting device 100 according to the dimming degree (for example, 100% to 25%). In each lighting device 100, the phase angle of the input voltage is detected, and the LED module 42 is turned on with a light amount corresponding to the phase angle. For example, when the phase angle is small, the current flowing through the LED module 42 is increased, and the current flowing through the LED module 42 is decreased as the phase angle increases, thereby performing dimming according to the phase angle. be able to.
　なお、実施の形態１、２と同様の箇所（例えば、図１～図５で示す構成）については、説明を省略する。実施の形態４の照明装置１００では、上述したように位相制御された交流電圧に対しても正確に調光することができるので、既存の位相制御による調光式の電球に置き換えることも、あるいは、既存の電球とともに併用して用いることもできる。 Note that the description of the same parts as in the first and second embodiments (for example, the configuration shown in FIGS. 1 to 5) is omitted. In the lighting device 100 according to the fourth embodiment, the light can be accurately adjusted even with respect to the AC voltage that is phase-controlled as described above. It can also be used in combination with existing light bulbs.
実施の形態４
　実施の形態１では、調光機能はなく、実施の形態２では、外部の調光器を用いて調光する構成であったが、遠隔操作用のリモコンを用いて、調光のみならず調色（発光色を所望の色に調整すること）機能を備えた構成とすることもできる。 Embodiment 4
In the first embodiment, there is no dimming function. In the second embodiment, dimming is performed using an external dimmer. However, not only dimming but also dimming can be performed using a remote control for remote operation. A configuration having a color (adjusting the emission color to a desired color) function may be employed.
　図７は実施の形態４の照明装置１００の断面図であり、図８は実施の形態４の光源モジュール４０の発光面の構造例を示す平面図である。実施の形態１～３との相違点は、発光色の異なるＬＥＤモジュール４２、４３、リモコン等の遠隔端末から信号を受信するリモコン受光部４５などを備える点である。以下、実施の形態４の詳細について説明する。 FIG. 7 is a cross-sectional view of the illumination device 100 of the fourth embodiment, and FIG. 8 is a plan view showing an example of the structure of the light emitting surface of the light source module 40 of the fourth embodiment. The difference from the first to third embodiments is that LED modules 42 and 43 having different emission colors, a remote control light receiving unit 45 that receives a signal from a remote terminal such as a remote control, and the like are provided. Details of the fourth embodiment will be described below.
　図７及び図８に示すように、光源モジュール４０は、アルミニウム合金などからなる略円形の基板４１上に複数の発光色の異なるＬＥＤモジュール４２、４３を交互に環状に適長隔離して配設してある。図８の例では、ＬＥＤモジュール４２、４３をそれぞれ３個用いる構成であるが、ＬＥＤモジュール４２、４３の数や配置は、図８の例に限定されるものではなく、照明装置の仕様や用途に応じて、個数を変更することや、配置を略矩形状にするなど適宜行うことができる。なお、基板４１は、セラミックなどであってもよい。 As shown in FIGS. 7 and 8, the light source module 40 includes a plurality of LED modules 42 and 43 having different emission colors, which are alternately separated in appropriate lengths on a substantially circular substrate 41 made of an aluminum alloy or the like. It is. In the example of FIG. 8, three LED modules 42 and 43 are used, but the number and arrangement of the LED modules 42 and 43 are not limited to the example of FIG. Depending on the case, it is possible to appropriately change the number or make the arrangement substantially rectangular. The substrate 41 may be ceramic.
　ＬＥＤモジュール４２は、例えば、白色の光を発光することができ、ＬＥＤモジュール４３は、電球色の光を発光することができる。なお、発光色は、これらに限定されるものではなく、他の色、例えば、赤色、緑色、青色などであってもよい。 The LED module 42 can emit white light, for example, and the LED module 43 can emit light bulb color. The emission color is not limited to these, and may be other colors such as red, green, and blue.
　略円形状の基板４１の中央には、リモコン受光部４５を配設してある。図８に示すように、電球型の照明装置１００では、照明器具等に取り付けられた状態で視認することができる部分は、ほぼ透光部５０のみである。例えば、ユーザがリモコンで遠隔操作を行うためには、リモコン受光部４５は透光部５０として視認される領域内に設ける必要がある。そして、リモコン受光部４５を囲むようにしてリモコン受光部４５の周囲にＬＥＤモジュール４２、４３を設けることにより、照明装置１００を小型化することができる。 A remote control light receiving unit 45 is disposed at the center of the substantially circular substrate 41. As shown in FIG. 8, in the light bulb-type lighting device 100, the portion that can be visually recognized in a state of being attached to a lighting fixture or the like is only the translucent portion 50. For example, in order for a user to perform a remote operation with a remote controller, the remote controller light receiving unit 45 needs to be provided in an area that is visually recognized as the translucent unit 50. Then, by providing the LED modules 42 and 43 around the remote control light receiving unit 45 so as to surround the remote control light receiving unit 45, the lighting device 100 can be reduced in size.
　図９は実施の形態４の電源部３０の構成を示すブロック図である。電源部３０は、商用電源などから侵入してくるノイズを除去するためのノイズフィルタ回路３１、交流電圧を整流して直流電圧に変換する整流回路３２、整流回路３２から出力された直流電圧を所要の直流電圧に変換するＤＣ／ＤＣコンバータ３３、ＤＣ／ＤＣコンバータ３３から出力された直流電圧に対してパルス幅変調を行うことによりＬＥＤモジュール４２及び４３に供給する電流を制御するＰＷＭ制御回路３４、電源部３０の制御を行う制御用マイクロコンピュータ３５、ＬＥＤモジュール４２に流れる電流や印加された電圧を検出する電流電圧検出回路３６、並びにＬＥＤモジュール４３に流れる電流や印加された電圧を検出する電流電圧検出回路３７などを備えている。 FIG. 9 is a block diagram illustrating a configuration of the power supply unit 30 according to the fourth embodiment. The power supply unit 30 requires a noise filter circuit 31 for removing noise intruding from a commercial power supply, etc., a rectifier circuit 32 that rectifies an AC voltage and converts it into a DC voltage, and a DC voltage output from the rectifier circuit 32 A DC / DC converter 33 for converting the direct current voltage into a direct current voltage, a PWM control circuit 34 for controlling the current supplied to the LED modules 42 and 43 by performing pulse width modulation on the direct current voltage output from the DC / DC converter 33, A control microcomputer 35 that controls the power supply unit 30, a current-voltage detection circuit 36 that detects a current flowing through the LED module 42 and an applied voltage, and a current voltage that detects a current flowing through the LED module 43 and an applied voltage A detection circuit 37 and the like are provided.
　リモコン受光部４５は、ユーザが操作するリモコン（不図示）に内蔵された赤外線ＬＥＤからの赤外線を受光し、リモコンから送信された信号を抽出し、抽出した信号を制御用マイクロコンピュータ３５へ出力する。リモコンから送信される信号は、例えば、光源を点灯、消灯、調光（例えば、７０％、５０％、３０％など）、調色（例えば、白色から電球色まで段階的に発光色を調整）するためのものである。 The remote control light receiving unit 45 receives infrared rays from an infrared LED incorporated in a remote control (not shown) operated by the user, extracts a signal transmitted from the remote control, and outputs the extracted signal to the control microcomputer 35. . The signal transmitted from the remote controller is, for example, turning on and off the light source, dimming (for example, 70%, 50%, 30%, etc.), and toning (for example, adjusting the emission color stepwise from white to light bulb color) Is to do.
　図１０Ａ及び図１０Ｂはリモコン受光部４５で受信する信号の一例を示す説明図である。図１０Ａは信号の送信側であるリモコンから送信される信号、すなわち、リモコン受光部４５で受信される信号を示し、図１０Ｂはリモコン受光部４５の出力状態を示す。図１０Ａに示すように、リモコンから送信される信号はキャリア周波数が３８ｋＨｚであり、周期は約２６μｓである。なお、キャリア周波数は、３８ｋＨｚに限定されるものではなく他の周波数、例えば、４０ｋＨｚなどでもよい。 10A and 10B are explanatory diagrams showing an example of signals received by the remote control light receiving unit 45. FIG. FIG. 10A shows a signal transmitted from the remote controller on the signal transmission side, that is, a signal received by the remote controller light receiving unit 45, and FIG. 10B shows an output state of the remote controller light receiving unit 45. As shown in FIG. 10A, the signal transmitted from the remote controller has a carrier frequency of 38 kHz and a period of about 26 μs. The carrier frequency is not limited to 38 kHz, and may be another frequency, for example, 40 kHz.
　リモコン側では、赤外線ＬＥＤの点滅を所定時間Ｔの間、周期２６μｓで繰り返した場合、リモコン受光部４５は、ハイレベル（Ｈ）の電気信号を出力する。また、リモコン側では、所定時間Ｔの間、赤外線ＬＥＤを消灯した場合、リモコン受光部４５は、ローレベル（Ｌ）の電気信号を出力する。 On the remote control side, when the blinking of the infrared LED is repeated at a period of 26 μs for a predetermined time T, the remote control light receiving unit 45 outputs a high level (H) electric signal. On the remote control side, when the infrared LED is turned off for a predetermined time T, the remote control light receiving unit 45 outputs a low level (L) electric signal.
　制御用マイクロコンピュータ３５は、リモコン受光部４５から出力された信号に基づいて、光源を点灯、消灯、調光、調色するための制御信号をＤＣ／ＤＣコンバータ３３、ＰＷＭ制御回路３４へ出力する。 The control microcomputer 35 outputs, to the DC / DC converter 33 and the PWM control circuit 34, control signals for turning on, off, dimming, and adjusting the light source based on the signal output from the remote control light receiving unit 45. .
　また、制御用マイクロコンピュータ３５は、電流電圧検出回路３６、３７から出力された検出結果に基づいて、光源を所定の光量で点灯維持させるための制御信号をＤＣ／ＤＣコンバータ３３、ＰＷＭ制御回路３４へ出力する。 Further, the control microcomputer 35 generates a control signal for maintaining the light source at a predetermined light intensity based on the detection result output from the current / voltage detection circuits 36 and 37, and the DC / DC converter 33 and the PWM control circuit 34. Output to.
　ＰＷＭ制御回路３４は、制御用マイクロコンピュータ３５から出力された制御信号を取得し、取得した制御信号に応じたＰＷＭ制御を各ＬＥＤモジュール４２、４３に対して行う。なお、各ＬＥＤモジュール４２、４３に対して、それぞれ個別にＰＷＭ制御回路を設ける構成でもよい。 The PWM control circuit 34 acquires the control signal output from the control microcomputer 35 and performs PWM control on the LED modules 42 and 43 in accordance with the acquired control signal. In addition, the structure which provides a PWM control circuit separately with respect to each LED module 42 and 43 may be sufficient.
　ＰＷＭ制御回路３４は、リモコンが赤外線で送信する信号のキャリア周波数（例えば、３８ｋＨｚ）と混信が生じ難い周波数帯域である、例えば、３００Ｈｚ～３ｋＨｚの範囲内の任意のＰＷＭ周波数を用いてＰＷＭ制御を行うことができる。以下、ＰＷＭ周波数とリモコン受光部４５で受光する信号のキャリア周波数との関係について説明する。 The PWM control circuit 34 performs PWM control using an arbitrary PWM frequency within a range of 300 Hz to 3 kHz, for example, which is a frequency band in which interference is unlikely to occur with a carrier frequency (for example, 38 kHz) of a signal transmitted by the remote controller using infrared rays. It can be carried out. Hereinafter, the relationship between the PWM frequency and the carrier frequency of the signal received by the remote control light receiving unit 45 will be described.
　図１１はＰＷＭ周波数とリモコンからの信号の到達距離との関係を示す説明図である。図１１において、横軸はＰＷＭ周波数を示し、縦軸はリモコンからの信号の到達距離を示す。到達距離は、リモコンからの信号が確実に受信することができるときのリモコンとリモコン受光部４５との距離であり、実使用上は、７ｍ以上であることが望ましい。 FIG. 11 is an explanatory diagram showing the relationship between the PWM frequency and the reach of the signal from the remote controller. In FIG. 11, the horizontal axis indicates the PWM frequency, and the vertical axis indicates the reach distance of the signal from the remote controller. The reach distance is the distance between the remote controller and the remote controller light receiving unit 45 when the signal from the remote controller can be reliably received, and is preferably 7 m or more in actual use.
　図１１からわかるように、ＰＷＭ周波数が約３ｋＨｚ以下であれば、到達距離は７ｍ以上確保することができる。また、ＰＷＭ周波数が２００ｋＨｚ以上であれば、到達距離は７ｍ以上確保することができる。 As can be seen from FIG. 11, if the PWM frequency is about 3 kHz or less, the reachable distance can be secured at 7 m or more. Further, if the PWM frequency is 200 kHz or more, the reach distance can be ensured to be 7 m or more.
　しかし、ＰＷＭ周波数を３００Ｈｚ以下にすると光源のちらつきが視認されるようになる。従って、ＰＭＷ周波数は、３００Ｈｚ～３ｋＨｚの範囲内にすることが望ましい。このように、ＰＷＭ周波数と遠隔操作用の信号の周波数（キャリア周波数）とを異なる帯域に分離することにより、遠隔操作用の信号がＰＷＭ制御による光源の点灯動作による影響を受けることを抑制し、遠隔操作の誤作動を防止することができる。特に、ＰＷＭ周波数を３００Ｈｚ～３ｋＨｚとすることにより、赤外線を用いた遠隔操作の誤動作を防止することができる。よって、リモコン受光部４５を、前記ＬＥＤモジュール４２、４３から光が出射される側から遠隔操作のための赤外線の信号を受信するように設けてあっても、赤外線を用いた遠隔操作の誤動作を防止することができる。 However, when the PWM frequency is set to 300 Hz or less, flickering of the light source becomes visible. Therefore, it is desirable that the PMW frequency be in the range of 300 Hz to 3 kHz. In this way, by separating the PWM frequency and the frequency (carrier frequency) of the signal for remote operation into different bands, the remote operation signal is suppressed from being affected by the lighting operation of the light source by PWM control, Remote operation malfunctions can be prevented. In particular, by setting the PWM frequency to 300 Hz to 3 kHz, it is possible to prevent malfunction of remote operation using infrared rays. Therefore, even if the remote control light receiving unit 45 is provided so as to receive an infrared signal for remote operation from the side from which the light is emitted from the LED modules 42 and 43, malfunction of remote operation using infrared rays is prevented. Can be prevented.
　また、リモコン受光部４５を、環状に配置されたＬＥＤモジュール４２、４３の略中央部に設けることにより、照明装置を小型化することができるとともに、遠隔操作用の信号がＰＷＭ制御による光源の点灯動作による影響を受けることを抑制し、遠隔操作の誤作動を防止することができる。 In addition, by providing the remote control light receiving unit 45 at the substantially central portion of the LED modules 42 and 43 arranged in a ring shape, the lighting device can be reduced in size, and the signal for remote operation is turned on by the PWM control. It is possible to suppress the influence of the operation and to prevent the malfunction of the remote operation.
　なお、ＰＷＭ周波数を２００ｋＨｚ以上にすることもできるが、ＰＷＭ制御回路３４に使用されるＦＥＴなどのスイッチング素子の発熱が増加する可能性もあり、上述の３００Ｈｚ～３ｋＨｚの範囲がより好ましい。 Note that although the PWM frequency can be set to 200 kHz or higher, there is a possibility that heat generated by a switching element such as an FET used in the PWM control circuit 34 may increase, and the above-described range of 300 Hz to 3 kHz is more preferable.
　次に、実施の形態４の照明装置１００の調色方法について説明する。図１２は実施の形態４の照明装置１００の調色の例を示す説明図である。図１２において、横軸は時間を示し、縦軸は各ＬＥＤモジュール４２、４３に流れる電流を示す。ＬＥＤモジュール４２は白色ＬＥＤモジュールであり、ＬＥＤモジュール４３は電球色ＬＥＤモジュールである。 Next, a color matching method of the lighting device 100 according to the fourth embodiment will be described. FIG. 12 is an explanatory diagram illustrating an example of toning of the illumination device 100 according to the fourth embodiment. In FIG. 12, the horizontal axis indicates time, and the vertical axis indicates the current flowing through each LED module 42, 43. The LED module 42 is a white LED module, and the LED module 43 is a light bulb color LED module.
　制御用マイクロコンピュータ３５は、リモコン受光部４５を介して照明色（照明装置１００全体としての発光色）を白色にすべく操作を受け付けた場合、図１２の状態Ａ１に示すように、白色ＬＥＤモジュール（ＬＥＤモジュール４２）をデューティ比１００％で点灯するとともに、電球色ＬＥＤモジュール（ＬＥＤモジュール４３）を消灯する。 When the control microcomputer 35 receives an operation to change the illumination color (the emission color of the entire illumination device 100) to white via the remote control light receiving unit 45, as shown in the state A1 of FIG. 12, the white LED module The (LED module 42) is turned on at a duty ratio of 100%, and the light bulb color LED module (LED module 43) is turned off.
　制御用マイクロコンピュータ３５は、リモコン受光部４５を介して照明色（照明装置１００全体としての発光色）を白色から少しだけ電球色側にすべく操作を受け付けた場合には、図１２の状態Ａ２に示すように、白色ＬＥＤモジュール（ＬＥＤモジュール４２）をデューティ比７５％で点灯するとともに、電球色ＬＥＤモジュール（ＬＥＤモジュール４３）をデューティ比２５％で点灯する。ここで、デューティ比は、一周期のうち、ＬＥＤモジュールに電流を流す期間の割合である。この状態で、照明色は、白色と昼白色との中間の色になる。 When the control microcomputer 35 accepts an operation to change the illumination color (the emission color of the entire illumination device 100) from white to a light bulb color side through the remote control light receiving unit 45, state A2 in FIG. As shown, the white LED module (LED module 42) is lit at a duty ratio of 75%, and the light bulb color LED module (LED module 43) is lit at a duty ratio of 25%. Here, the duty ratio is a ratio of a period during which a current flows through the LED module in one cycle. In this state, the illumination color is an intermediate color between white and white.
　制御用マイクロコンピュータ３５は、リモコン受光部４５を介して照明色（照明装置１００全体としての発光色）を昼白色にすべく操作を受け付けた場合には、図１２の状態Ａ３に示すように、白色ＬＥＤモジュール（ＬＥＤモジュール４２）をデューティ比５０％で点灯するとともに、電球色ＬＥＤモジュール（ＬＥＤモジュール４３）をデューティ比５０％で点灯する。この状態で、照明色は昼白色になる。 When the control microcomputer 35 accepts an operation to change the illumination color (the emission color of the illumination device 100 as a whole) to neutral white via the remote control light receiving unit 45, as shown in the state A3 in FIG. The white LED module (LED module 42) is lit at a duty ratio of 50%, and the light bulb color LED module (LED module 43) is lit at a duty ratio of 50%. In this state, the illumination color is neutral white.
　制御用マイクロコンピュータ３５は、リモコン受光部４５を介して照明色（照明装置１００全体としての発光色）を昼白色から少しだけ電球色側にすべく操作を受け付けた場合には、図１２の状態Ａ４に示すように、白色ＬＥＤモジュール（ＬＥＤモジュール４２）をデューティ比２５％で点灯するとともに、電球色ＬＥＤモジュール（ＬＥＤモジュール４３）をデューティ比７５％で点灯する。この状態で、照明色は、昼白色と電球色との中間の色になる。 When the control microcomputer 35 receives an operation via the remote control light-receiving unit 45 to change the illumination color (the emission color of the entire illumination device 100) from the neutral white to the light bulb color side, the state shown in FIG. As shown in A4, the white LED module (LED module 42) is lit at a duty ratio of 25%, and the light bulb color LED module (LED module 43) is lit at a duty ratio of 75%. In this state, the illumination color becomes an intermediate color between the daylight white color and the light bulb color.
　制御用マイクロコンピュータ３５は、リモコン受光部４５を介して照明色（照明装置１００全体としての発光色）を電球色にすべく操作を受け付けた場合には、図１２の状態Ａ５に示すように、白色ＬＥＤモジュール（ＬＥＤモジュール４２）を消灯するとともに、電球色ＬＥＤモジュール（ＬＥＤモジュール４３）をデューティ比１００％で点灯する。この状態で、照明色は電球色になる。 When the control microcomputer 35 receives an operation for changing the illumination color (the emission color of the entire illumination device 100) to the light bulb color via the remote control light receiving unit 45, as shown in a state A5 in FIG. The white LED module (LED module 42) is turned off, and the light bulb color LED module (LED module 43) is turned on with a duty ratio of 100%. In this state, the illumination color becomes a light bulb color.
　図１２の例においては、制御用マイクロコンピュータ３５は、発光色の異なるＬＥＤモジュール４２、４３同士が同時に点灯しない（点灯時間、すなわちＰＷＭ制御のオン時間が重複しない）ように制御する。すなわち、白色ＬＥＤモジュールが点灯している時間は、電球色ＬＥＤモジュールを消灯させ、電球色ＬＥＤモジュールが点灯している時間は白色ＬＥＤモジュールを消灯させる。これにより、ＬＥＤモジュール４２、４３に供給する電流を所定値（一方の発光色のＬＥＤモジュールに供給する電流値）以上に変動させることなく発光色を調整することができる。 In the example of FIG. 12, the control microcomputer 35 performs control so that the LED modules 42 and 43 having different emission colors do not light up at the same time (lighting time, that is, PWM control on-time does not overlap). That is, when the white LED module is on, the light bulb color LED module is turned off, and when the light bulb color LED module is on, the white LED module is turned off. Thereby, the light emission color can be adjusted without changing the current supplied to the LED modules 42 and 43 to a predetermined value (current value supplied to the LED module of one light emission color) or more.
　また、ＰＷＭ制御により、各色のＬＥＤモジュールの点灯時間の割合を変更して照明色を白色、昼光色、電球色などの範囲で所望の発光色（色温度）に変えることができ、照明装置の利用シーンやユーザの好みに合わせて最適な照明環境を実現することができる。 Also, with PWM control, the lighting color can be changed to a desired emission color (color temperature) in the range of white, daylight, light bulb, etc. by changing the proportion of lighting time of each color LED module. An optimal lighting environment can be realized according to the scene and user's preference.
　次に、実施の形態４の照明装置１００の調光方法について説明する。図１３は実施の形態４の照明装置１００の調光の一例を示す説明図である。図１３において、横軸は時間を示し、縦軸は各ＬＥＤモジュール４２、４３に流れる電流を示す。ＬＥＤモジュール４２は白色ＬＥＤモジュールであり、ＬＥＤモジュール４３は電球色ＬＥＤモジュールである。 Next, a dimming method for lighting apparatus 100 according to the fourth embodiment will be described. FIG. 13 is an explanatory diagram illustrating an example of light control of the illumination device 100 according to the fourth embodiment. In FIG. 13, the horizontal axis represents time, and the vertical axis represents the current flowing through each LED module 42, 43. The LED module 42 is a white LED module, and the LED module 43 is a light bulb color LED module.
　制御用マイクロコンピュータ３５は、リモコン受光部４５を介して照明色を、例えば、昼白色に設定した後、明るさを全灯（１００％調光）にすべく操作を受け付けた場合、図１３の状態Ｂ１に示すように、白色ＬＥＤモジュール（ＬＥＤモジュール４２）をデューティ比５０％で点灯するとともに、電球色ＬＥＤモジュール（ＬＥＤモジュール４３）をデューティ比５０％で点灯する。この状態で、一周期に亘って、いずれの色のＬＥＤモジュールが点灯しているので、調光は１００％になる。 When the control microcomputer 35 receives an operation to set the brightness to all lamps (100% dimming) after setting the illumination color to, for example, neutral white through the remote control light receiving unit 45, the control microcomputer 35 in FIG. As shown in state B1, the white LED module (LED module 42) is lit at a duty ratio of 50%, and the light bulb color LED module (LED module 43) is lit at a duty ratio of 50%. In this state, since the LED module of any color is lit for one cycle, the dimming is 100%.
　制御用マイクロコンピュータ３５は、明るさを少し暗くすべく操作を受け付けた場合、図１３の状態Ｂ２に示すように、白色ＬＥＤモジュール（ＬＥＤモジュール４２）をデューティ比３５％で点灯するとともに、電球色ＬＥＤモジュール（ＬＥＤモジュール４３）をデューティ比３５％で点灯する。この状態で、一周期に対して、いずれか色のＬＥＤモジュールが点灯して期間が７０％であるので、調光は７０％になる。 When the control microcomputer 35 accepts an operation to slightly reduce the brightness, the white LED module (LED module 42) is lit at a duty ratio of 35% as shown in state B2 of FIG. The LED module (LED module 43) is lit at a duty ratio of 35%. In this state, since the LED module of any color is lit and the period is 70% for one cycle, the dimming is 70%.
　制御用マイクロコンピュータ３５は、さらに明るさを暗くすべく操作を受け付けた場合、図１３の状態Ｂ３に示すように、白色ＬＥＤモジュール（ＬＥＤモジュール４２）をデューティ比２５％で点灯するとともに、電球色ＬＥＤモジュール（ＬＥＤモジュール４３）をデューティ比２５％で点灯する。この状態で、一周期に対して、いずれか色のＬＥＤモジュールが点灯して期間が５０％であるので、調光は５０％になる。なお、他の発光色でも同様である。 When the control microcomputer 35 accepts an operation to further reduce the brightness, as shown in the state B3 of FIG. 13, the control microcomputer 35 lights the white LED module (LED module 42) with a duty ratio of 25% and also the light bulb color. The LED module (LED module 43) is lit at a duty ratio of 25%. In this state, the LED module of any color is lit for one period and the period is 50%, so that the light control is 50%. The same applies to other emission colors.
　このように、制御用マイクロコンピュータ３５は、発光色の異なる光源夫々の点灯時間の比率を一定にしつつ点灯時間の長短を制御して調光を行う。これにより、調色と調光を同時に行うことができ、照明装置１００の利用シーンやユーザの好みに合わせて一層最適な照明環境を実現することができる。 As described above, the control microcomputer 35 performs light control by controlling the length of the lighting time while keeping the ratio of the lighting times of the light sources having different emission colors constant. Thereby, toning and light control can be performed simultaneously, and a more optimal lighting environment can be realized according to the usage scene of the lighting device 100 and the user's preference.
　図１４は実施の形態４の照明装置１００の調光の他の例を示す説明図である。図１４において、横軸は時間を示し、縦軸は各ＬＥＤモジュール４２、４３に流れる電流を示す。ＬＥＤモジュール４２は白色ＬＥＤモジュールであり、ＬＥＤモジュール４３は電球色ＬＥＤモジュールである。 FIG. 14 is an explanatory diagram showing another example of light control of the lighting device 100 according to the fourth embodiment. In FIG. 14, the horizontal axis represents time, and the vertical axis represents the current flowing through the LED modules 42 and 43. The LED module 42 is a white LED module, and the LED module 43 is a light bulb color LED module.
　制御用マイクロコンピュータ３５は、リモコン受光部４５を介して照明色を、例えば、昼白色に設定した後、明るさを全灯（１００％調光）にすべく操作を受け付けた場合、図１４の状態Ｃ１に示すように、白色ＬＥＤモジュール（ＬＥＤモジュール４２）及び電球色ＬＥＤモジュールに所定値の電流を流す。この状態で、調光は１００％になる。なお、デューティ比は５０％であるが、これに限定されるものではない。 When the control microcomputer 35 accepts an operation for setting the brightness to all lamps (100% light control) after setting the illumination color to, for example, daylight white via the remote control light receiving unit 45, the control microcomputer 35 in FIG. As shown in the state C1, a predetermined value of current is passed through the white LED module (LED module 42) and the light bulb color LED module. In this state, dimming is 100%. The duty ratio is 50%, but is not limited to this.
　制御用マイクロコンピュータ３５は、明るさを少し暗くすべく操作を受け付けた場合、図１４の状態Ｃ２に示すように、白色ＬＥＤモジュール（ＬＥＤモジュール４２）及び電球色ＬＥＤモジュール（ＬＥＤモジュール４３）に流す電流を所定値よりも少なくする。この状態で、各ＬＥＤモジュールに流れる電流が所定値の７５％であるので、調光は７５％になる。 When the control microcomputer 35 receives an operation to slightly reduce the brightness, the control microcomputer 35 causes the white LED module (LED module 42) and the light bulb color LED module (LED module 43) to flow as shown in the state C2 of FIG. The current is made smaller than a predetermined value. In this state, since the current flowing through each LED module is 75% of the predetermined value, the dimming is 75%.
　制御用マイクロコンピュータ３５は、さらに明るさを暗くすべく操作を受け付けた場合、図１４の状態Ｃ３に示すように、白色ＬＥＤモジュール（ＬＥＤモジュール４２）及び電球色ＬＥＤモジュール（ＬＥＤモジュール４３）に流す電流をさらに少なくする。この状態で、各ＬＥＤモジュールに流れる電流が所定値の５０％であるので、調光は５０％になる。なお、他の発光色でも同様である。 When the control microcomputer 35 receives an operation to further reduce the brightness, as shown in a state C3 in FIG. 14, the control microcomputer 35 flows the white LED module (LED module 42) and the light bulb color LED module (LED module 43). Reduce the current further. In this state, since the current flowing through each LED module is 50% of the predetermined value, dimming is 50%. The same applies to other emission colors.
　このように、制御用マイクロコンピュータ３５は、発光色の異なるＬＥＤモジュール４２、４３夫々の点灯時間の長さを一定にしつつ、点灯時間中に供給する電流の多少を制御して調光を行う。これにより、調色と調光を同時に行うことができ、照明装置の利用シーンやユーザの好みに合わせて一層最適な照明環境を実現することができる。 As described above, the control microcomputer 35 performs light control by controlling the amount of current supplied during the lighting time while keeping the length of the lighting time of the LED modules 42 and 43 having different emission colors constant. Thereby, toning and light control can be performed simultaneously, and a more optimal lighting environment can be realized according to the usage scene of the lighting device and the user's preference.
実施の形態５
　上述の実施の形態４では、基板４１の表面上にリモコン受光部４５を設ける構成であったが、ＬＥＤモジュール４２、４３で発生する熱が基板４１を介してリモコン受光部４５に伝わることによる影響を防止する構成とすることができる。 Embodiment 5
In the above-described fourth embodiment, the remote control light receiving unit 45 is provided on the surface of the substrate 41. However, the influence of heat generated in the LED modules 42 and 43 being transmitted to the remote control light receiving unit 45 through the substrate 41. It can be set as the structure which prevents.
　図１５は実施の形態５の光源モジュール４０の発光面の構造例を示す平面図であり、図１６は実施の形態５のリモコン受光部４５の配置の一例を示す要部断面図である。光源モジュール４０の基板４１は、中央部に円形状の穴４４を設けてあり、基板４１上には、穴４４を中心にして複数の発光色の異なるＬＥＤモジュール４２、４３を交互に環状に適長隔離して配設してある。また、穴４４の径はリモコン受光部４５の寸法よりも大きい。 FIG. 15 is a plan view showing an example of the structure of the light emitting surface of the light source module 40 of the fifth embodiment, and FIG. 16 is a cross-sectional view of the main part showing an example of the arrangement of the remote control light receiving section 45 of the fifth embodiment. The substrate 41 of the light source module 40 is provided with a circular hole 44 in the center, and a plurality of LED modules 42 and 43 having different emission colors are alternately and annularly arranged around the hole 44 on the substrate 41. Long-separated. Further, the diameter of the hole 44 is larger than the dimension of the remote control light receiving unit 45.
　リモコン受光部４５は、穴４４のほぼ中央に基板４１と隔離して配置されている。リモコン受光部４５は、放熱板２０上に取り付けられ、基板４１とは分離した基板４６上に設けられている。 The remote control light receiving unit 45 is arranged in the center of the hole 44 so as to be isolated from the substrate 41. The remote control light receiving unit 45 is mounted on the heat radiating plate 20 and provided on the substrate 46 separated from the substrate 41.
　上述のように、外部からの信号を受信するリモコン受光部４５をＬＥＤモジュール４２、４３から熱的に分離して設け、物理的に分離することで、ＬＥＤモジュール４２、４３からの熱がリモコン受光部４５に熱伝導しないようにすることができる。また、リモコン受光部４５とＬＥＤモジュール４２、４３とが物理的に繋がっている場合でも、両者の間に放熱板２０を介することで、ＬＥＤモジュール４２、４３からリモコン受光部４５へ熱が伝導する途中で放熱されてリモコン受光部４５に熱が伝わらないようにすることができる。これにより、リモコン受光部４５の劣化や故障を防止することができる。 As described above, the remote control light receiving unit 45 that receives an external signal is thermally separated from the LED modules 42 and 43 and physically separated so that the heat from the LED modules 42 and 43 is received by the remote control. The portion 45 can be prevented from conducting heat. Further, even when the remote control light receiving unit 45 and the LED modules 42 and 43 are physically connected, heat is conducted from the LED modules 42 and 43 to the remote control light receiving unit 45 through the heat sink 20 between them. It is possible to prevent heat from being transmitted to the remote control light receiving unit 45 by being radiated on the way. Thereby, deterioration or failure of the remote control light receiving unit 45 can be prevented.
　また、リモコン受光部４５を、ＬＥＤモジュール４２、４３が実装された基板４１から隔離して設けてあることにより、ＬＥＤモジュール４２、４３で発生した熱が基板４１を介してリモコン受光部４５へ熱伝導しにくくなり、リモコン受光部４５の劣化や故障を防止することができる。 Further, since the remote control light receiving unit 45 is provided separately from the substrate 41 on which the LED modules 42 and 43 are mounted, heat generated in the LED modules 42 and 43 is transferred to the remote control light receiving unit 45 through the substrate 41. It becomes difficult to conduct, and deterioration or failure of the remote control light receiving unit 45 can be prevented.
　図１７は実施の形態５のリモコン受光部４５の配置の他の例を示す要部断面図である。図１７の例では、基板４１の一面に複数のＬＥＤモジュール４２、４３を交互に隔離させて環状に実装してあり、基板４１は、各ＬＥＤモジュール４２、４３で囲まれた領域の略中央に開口部４８を設けてあり、そして、基板４１とは物理的に分離した別個の基板４６に設けられたリモコン受光部４５を開口部４８の近傍に設けてある。なお、基板４６は適宜の支持材で支持されている。これにより、ＬＥＤモジュール４２、４３が実装された基板４１に物理的に繋がることなく、リモコン受光部４５をＬＥＤモジュール４２、４３が配設された領域の略中央に設けることができるので、照明装置１００の発光面にリモコン受光部４５を設けることができ、装置を小型化することができる。 FIG. 17 is a cross-sectional view of the main part showing another example of the arrangement of the remote control light receiving unit 45 of the fifth embodiment. In the example of FIG. 17, a plurality of LED modules 42 and 43 are alternately separated on one surface of the substrate 41 and mounted in an annular shape, and the substrate 41 is approximately at the center of the region surrounded by the LED modules 42 and 43. An opening 48 is provided, and a remote control light receiving unit 45 provided on a separate substrate 46 physically separated from the substrate 41 is provided in the vicinity of the opening 48. The substrate 46 is supported by an appropriate support material. As a result, the remote control light receiving unit 45 can be provided at substantially the center of the area where the LED modules 42 and 43 are disposed without being physically connected to the substrate 41 on which the LED modules 42 and 43 are mounted. The remote control light receiving unit 45 can be provided on the light emitting surface 100, and the apparatus can be downsized.
　リモコン受光部４５を開口部４８の近傍に設ける場合、リモコン受光部４５を基板４１及び放熱板２０の内周面で囲まれる位置に設けることもでき、あるいは、基板４１や放熱板２０の板面方向と交差する方向に沿って開口部４８から電源部３０側へ隔離した位置に設けることもできる。これにより、リモコン受光部４５をＬＥＤモジュール４２、４３及び基板４１から一層離すことができ、熱による影響を少なくすることができる。 When the remote control light receiving unit 45 is provided in the vicinity of the opening 48, the remote control light receiving unit 45 can be provided at a position surrounded by the inner peripheral surface of the substrate 41 and the heat sink 20, or the plate surface of the substrate 41 or the heat sink 20. It can also be provided at a position separated from the opening 48 toward the power supply unit 30 along the direction intersecting the direction. Thereby, the remote control light-receiving part 45 can be separated further from the LED modules 42 and 43 and the board | substrate 41, and the influence by heat can be decreased.
　図１８は実施の形態５のリモコン受光部４５の配置の他の例を示す要部断面図である。図１８の例では、リモコンからの赤外光をリモコン受光部４５に導くための導光部材４７を備えている。導光部材４７は、ガラス製又は合成樹脂製であって、略円筒状をなし、一方側はリモコンからの光を取り入れるように外側に向かって凸状の曲面（球面）を有し、他方側はリモコン受光部４５の形状に合わせて外側に向かって凹状の曲面を有する。これにより、照明装置１００の発光面である透光部５０に対して信号（赤外光）を外部から送信する場合に、確実に信号をリモコン受光部４５へ導くことができる。なお、導光部材４７の上記他方側（リモコン受光部４５側の端面）は、凹状の曲面に限定されるものではなく、平面状であってもよい。 FIG. 18 is a cross-sectional view of the main part showing another example of the arrangement of the remote control light receiving unit 45 of the fifth embodiment. In the example of FIG. 18, a light guide member 47 for guiding infrared light from the remote control to the remote control light receiving unit 45 is provided. The light guide member 47 is made of glass or synthetic resin and has a substantially cylindrical shape. One side has a curved surface (spherical surface) that protrudes outward so as to receive light from the remote control, and the other side. Has a concave curved surface toward the outside in accordance with the shape of the remote control light receiving unit 45. As a result, when a signal (infrared light) is transmitted from the outside to the light transmitting portion 50 that is the light emitting surface of the illumination device 100, the signal can be reliably guided to the remote control light receiving portion 45. The other side of the light guide member 47 (the end surface on the remote control light receiving unit 45 side) is not limited to a concave curved surface, and may be planar.
　以上説明したように、本発明によれば、ＬＥＤから発せられた光は、透光部を透過する際に光拡散部材で拡散されるので、簡便な構成で配光特性を広くすることができる。 As described above, according to the present invention, the light emitted from the LED is diffused by the light diffusing member when passing through the light transmitting portion, so that the light distribution characteristic can be widened with a simple configuration. .
　上述の実施の形態では、電球型の照明装置について説明したが、照明装置の形状は電球型に限定されるものでなく、他の形状であってよい。また、光源としてＬＥＤモジュールを備える照明装置について説明したが、光源はＬＥＤモジュールに限定されるものではなく、面発光を有する発光素子であれば、有機ＥＬなど他の光源でもよい。 In the above-described embodiment, the light bulb type lighting device has been described. However, the shape of the lighting device is not limited to the light bulb type, and may be another shape. Moreover, although the illuminating device provided with the LED module as the light source has been described, the light source is not limited to the LED module, and other light sources such as an organic EL may be used as long as the light emitting element has surface light emission.
　１０　口金
　２０　放熱板
　１３　放熱部
　３０　電源部
　４０　光源モジュール
　４１　基板（回路基板）
　４２、４３　ＬＥＤモジュール（発光ダイオード）
　５０、５１　透光部
　５０ａ　５２　光拡散部材

                                                                                 10 base 20 heat sink 13 heat sink 30 power source 40 light source module 41 board (circuit board)
42, 43 LED module (light emitting diode)
50, 51 Translucent part 50a 52 Light diffusing member

Claims (5)

  1. 　光源部と、該光源部を覆い、該光源部からの光を透過する透光部とを備える照明装置において、
    　前記透光部は、
    　光拡散部材を有することを特徴とする照明装置。     In an illumination device including a light source unit and a light transmitting unit that covers the light source unit and transmits light from the light source unit.
    The translucent part is
    A lighting device comprising a light diffusing member.
  2. 　前記光拡散部材は、
    　蛍光体であることを特徴とする請求項１に記載の照明装置。     The light diffusing member is
    The lighting device according to claim 1, wherein the lighting device is a phosphor.
  3. 　前記透光部は、
    　前記蛍光体を添加してなることを特徴とする請求項２に記載の照明装置。     The translucent part is
    The lighting device according to claim 2, wherein the phosphor is added.
  4. 　前記透光部は、
    　前記光源からの光が入射する入射面又は該光が透過する透過面の少なくとも一方に前記蛍光体を塗布してなることを特徴とする請求項２に記載の照明装置。     The translucent part is
    The lighting device according to claim 2, wherein the phosphor is applied to at least one of an incident surface on which light from the light source is incident and a transmission surface on which the light is transmitted.
  5. 　前記光源部は、
    　回路基板と、
    　該回路基板に実装され、平面状の発光面を有する発光ダイオードと
    　を備え、
    　前記透光部は、
    　中空の略半球殻をなすガラス製であることを特徴とする請求項１から請求項４までのいずれか１項に記載の照明装置。
          The light source unit is
    A circuit board;
    A light emitting diode mounted on the circuit board and having a planar light emitting surface,
    The translucent part is
    The lighting device according to any one of claims 1 to 4, wherein the lighting device is made of glass having a hollow, substantially hemispherical shell.
PCT/JP2010/058508 2009-06-04 2010-05-20 Illuminating device WO2010140480A1 (en)

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