JPH07272514A - Light source device for lighting - Google Patents

Abstract

PURPOSE:To form an effective and sufficient air flow for cooling and make a device smaller by providing an exhaust fan between a light source in a case and an exhaust port. CONSTITUTION:An exhaust fan 7 is stored in a case 6 and arranged between a lamp 1 and an exhaust port 5 to intake outside air from a suction port 4, cool a light source power supply 2 and exhaust air after cooling the lamp 1. Light is entered from the lamp 1 to the incident end of an optical fiber inserted into an optical fiber insert 3 and emitted from the other end or the side face. When the fan is activated, air in a device, especially near the lamp 1, is exhausted to the outside. With such exhaustion, atmospheric air in the device 2 is moved to the exhaust port 5 side and outside air entered from the suction port 4 into the device to cool the device 2 and then the lamp 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an illumination light source device using an optical fiber.

[0002]

2. Description of the Related Art As a light source device for illumination that allows light to enter from the end face of an optical fiber and to leak from the side face of the optical fiber or to emit light from the emitting end of the opposite end face, the light is applied to one end of the optical fiber. There is a light source device for illumination that includes a light source that enters and emits light from the other end and a power source device for the light source.

Cooling of the light source device is usually performed by ventilation, and for example, a first casing containing an input end of an optical fiber and a lamp and a second casing containing a power source and a dimming block are provided. A lighting device in which an air-cooling fan that ventilates air from the power supply side to the lamp side is mounted between the casing and the second casing (Shokai Sho 60-163).
No. 614), and a ventilation fan provided with a partition between the lamp and the transformer accommodates air from the lamp side to the transformer side by accommodating the input end of the optical fiber, the lamp, and the transformer. Light irradiating device for penetrating (JP-A-1-1-1
(Japanese Patent No. 86908) and the like have been known. As these power sources, an electromagnetic ballast (ballast) such as a line voltage step-down transformer as described in the above publication is used.

[0004]

However, in the above-mentioned conventional illumination light source device using the optical fiber, the ventilation fan is installed in the partition in the substantially central portion of the illumination light source device main body, and is connected to the light source side block such as a lamp. A cooling airflow is formed in the power supply unit side block. Therefore, in order to form a sufficient cooling air flow, in order to use a ventilation fan having a sufficient space between the light source side block and the power source side block and being bulky, a conventional optical fiber is used. In the light source device for illumination, a large and bulky casing has to be used. Further, when an electromagnetic ballast (ballast) is used, there is an inconvenience that it is large and heavy.

The present invention has been made based on the above background, and an object of the present invention is to provide an optical fiber which can be easily miniaturized and which can form an effective and sufficient cooling air flow. It is to provide a light source device for illumination used.

[0006]

The above-mentioned problems can be solved by the present invention. That is, an illumination light source device using an optical fiber according to the present invention is an illumination light source device including a light source that makes light incident on one end of the optical fiber and emits light from the other end and / or a side surface thereof, and a light source power supply device. There is a main body case having an optical fiber insertion port for inserting the incident end of the optical fiber, an intake port and an exhaust port on the wall, and it is housed in this main body case and arranged so as to face the incident end of the optical fiber. A light source, a light source power supply device housed in this case and arranged near this intake port, and a light source power supply device housed in this case, arranged between the light source and the exhaust port, and take in outside air from the intake port An exhaust fan that cools the light source power supply device and then exhausts the air that has cooled the light source.

In a preferred embodiment of the present invention, the color filter is housed in a case, inserted between the optical fiber entrance end and the light source, and is housed in a rotatable color filter and case.
A rotatable light shield plate may be provided between the optical fiber entrance end and the light source.

In a preferred embodiment of the present invention,
It is also possible to provide a photodetector for detecting the rotational positions of the color filter and the light shielding plate.

Furthermore, in a preferred embodiment of the present invention,
A microswitch may be provided that is housed in the case and shuts off the power switch when the case lid is opened.

In a preferred embodiment of the present invention, when it is housed in a case and the temperature in the case exceeds a predetermined temperature,
A temperature sensor may be provided to shut off the power switch.

In a preferred embodiment of the present invention,
When the light source is turned off, a turn-off signal can be output to the outside.

In a preferred embodiment of the present invention, a light source subunit having a light source, a power subunit having a light source power supply unit, a filter subunit having a color filter and a light shielding plate, and an electric / electronic component are mounted. It is possible to assemble the whole by providing a substrate subunit to which the above substrate is attached, and attaching these subunits to the main body case.

[0013]

The light source device for illumination according to the present invention having the above-described structure operates and operates as follows. In the light source device for illumination using the optical fiber according to the present invention, necessary electricity is supplied to the light source from the power source device for the light source, and the light from the light source is incident on the incident end of the optical fiber inserted into the optical fiber insertion port. Light is emitted from the other end and / or the side surface.

A large amount of heat is generated in the power source device for the light source and the light source of the lamp. When the exhaust fan provided between the light source and the exhaust port operates, the air inside the device, especially the air near the light source, is exhausted to the outside from the exhaust port. Along with this exhaust, the air in the atmosphere of the power source device for the light source moves to the exhaust port side, and instead, external air flows into the device from the intake port on the wall. As a result, the outside air is taken in from the intake port, the power source device for the light source is cooled, and then the light source is cooled to exhaust the air.

[0015]

The present invention will be specifically described with reference to the following examples. An embodiment of a light source device for illumination using an optical fiber according to the present invention is shown in FIGS. 1 is a partial cross-section inside side view of an embodiment of a lighting light source device according to the present invention, and FIG. 2 is a partial cross-section inside plan view of an embodiment of the lighting light source device according to the present invention, and FIG. 4 and 4 are perspective views of an embodiment of a lighting light source device according to the present invention.

The illuminating light source device of this aspect includes a light source lamp 1 and a light source power source device 2 for injecting light into one end of an optical fiber and emitting light from the other end and / or a side surface thereof. An optical fiber insertion port 3 into which an incident end of an optical fiber is inserted, a main body case 6 having an intake port 4 and an exhaust port 5 on a wall, and a main body case 6 housed in the main body case 6 and arranged so as to face the incident end of the optical fiber A lamp 1, a light source power supply device 2 housed in the case 1 and arranged in the vicinity of the intake port 4,
It is housed in a case 6, is disposed between the lamp 1 and the exhaust port 5, and has an exhaust fan that takes in outside air from the intake port 4, cools the light source power supply device 2, and then exhausts the air that has cooled the lamp 1. . In this embodiment, the color filter 8 is housed in the case 6, is inserted between the optical fiber entrance end (not shown) and the lamp 1, and includes a rotatable color filter 8 and a rotatable light shielding plate 9, each of which is Driven by motors 10 and 11,
A photodetector (not shown) for detecting the rotational positions of the color filter 8 and the light shielding plate 9 is also provided.

In this aspect, an electronic ballast (ballast) is used as the power supply device, and by using this, the size and weight can be reduced. In this embodiment, a micro switch (not shown) which is housed in the case 6 and shuts off the switch of the power source when the lid of the case 6 is opened is provided.
By installing such a switch, accidents such as electric shock can be prevented and a device with more complete safety measures can be provided.

In this embodiment, there is provided a temperature sensor (not shown) which is housed in the case 6 and shuts off the switch of the power source when the temperature inside the case 6 exceeds a predetermined temperature. By installing such a sensor, it is possible to prevent accidents such as overheating and fire, and to provide a device with more complete safety measures. Further, in this embodiment, when the lamp is turned off for some reason, an extinguishing signal is output to the outside.
With such a device, maintenance and security of the lighting device can be easily performed.

Further, in this aspect, a light source subunit (not shown) to which the lamp 1 is attached and a power source device 2 for the light source.
A power supply subunit (not shown), a filter subunit (not shown) to which the color filter 8 and the light shielding plate 9 are attached, and a substrate subunit 12 to which a substrate on which electric / electronic components are mounted is attached. It is possible to assemble the whole by installing these subunits in the main body case 6. As described above, by forming the subunit, the lighting device can be easily assembled, maintenance and security such as replacement of parts can be easily performed, and replacement of the color filter 8 can be facilitated so that the optical fiber can be easily replaced. You can change the color of the light emitted and illuminated by various colors, and you can create a variety of lighting effects.

Next, the operation and function of the illumination light source device of this embodiment will be described. The lamp 1 is supplied with necessary electricity from the light source power source device 2, the light from the lamp 1 is made incident on the incident end of the optical fiber inserted into the optical fiber insertion port 3, and the light is emitted from the other end and / or the side surface. To be emitted. The light source power supply device 2 and the lamp 1 generate a large amount of heat. When the exhaust fan 7 arranged between the lamp and the exhaust port 5 operates,
As shown by the dashed arrows in FIGS. 1 and 2, the air in the device, particularly the air in the vicinity of the lamp 1, is exhausted to the outside from the exhaust port 5. Along with this exhaust, the air in the atmosphere of the light source power supply device 2 moves to the exhaust port 5 side, and in stead, outside air flows into the device from the intake port 4 on the side wall of the main body, and as a result,
As shown by the dashed arrows in FIGS. 1 and 2, the outside air is taken in through the intake port 4, the light source power supply device 2 is cooled, and then the lamp 1 is cooled to exhaust the air.

[0021]

As demonstrated in the above embodiments, according to the present invention, the light source device for illumination can be downsized and an effective and sufficient cooling air flow can be formed to perform sufficient ventilation cooling.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional internal side view of an embodiment of a lighting light source device according to the present invention.

FIG. 2 is a partial sectional internal plan view of an embodiment of a light source device for illumination according to the present invention.

FIG. 3 is a perspective view of an embodiment of a lighting light source device according to the present invention.

FIG. 4 is a perspective view of an embodiment of a lighting light source device according to the present invention.

[Explanation of symbols]

 1 lamp 2 light source power supply device 3 optical fiber insertion port 4 intake port 5 exhaust port 6 body case 7 exhaust fan 8 color filter 9 light-shielding plate 10, 11 motor 12 substrate

Claims (7)

[Claims] 1. A lighting light source device including a light source for injecting light into one end of an optical fiber and emitting the light from the other end and / or a side surface thereof, wherein an incident end of the optical fiber is inserted. A main body case having an optical fiber insertion port, an intake port and an exhaust port on a wall, a light source housed in the case and arranged to face an incident end of an optical fiber, and an air intake housed in the case. A light source power supply device disposed near the mouth, and a light source power supply device that is housed in the case and disposed between the light source and the exhaust port, takes in outside air from the intake port, and cools the light source power supply device A light source device for illumination, comprising: an exhaust fan that exhausts the cooled air. 2. A color filter which is housed in the case and inserted between the optical fiber incident end and the light source and is rotatable, and a color filter which is housed in the case and between the optical fiber incident end and the light source. The illumination light source device according to claim 1, further comprising a light shielding plate that is inserted and rotatable. 3. The illumination light source device according to claim 2, further comprising a photodetector for detecting a rotational position of the color filter and the light shielding plate. 4. The light source device for illumination according to claim 1, further comprising a micro switch which is housed in the case and shuts off a switch of the power source when the lid of the case is opened. 5. The illumination light source device according to claim 1, further comprising a temperature sensor that is housed in the case and shuts off a switch of a power source when the temperature in the case reaches a predetermined temperature or higher. 6. The light source device for illumination according to claim 1, which outputs an extinguishing signal to the outside when the light source is extinguished. 7. A light source subunit having a light source attached,
The main body case includes a power supply subunit to which a light source power supply device is attached, a filter subunit to which a color filter and a light shielding plate are attached, and a substrate subunit to which a substrate on which electric / electronic components are mounted is attached. The light source device for illumination according to claim 3, wherein the whole is assembled by attaching.