JP2002075046A - Plastic optical fiber and light source device for lighting using it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plastic optical fiber and a light-source device for lighting using it where the quantity of incident light is easily increased while melting of an incident end part is prevented. SOLUTION: A glass rod 3 is connected to an incident end part 2 fitted with a base part 1, with a part of the glass rod 3 protruding from the base part 1. With a plastic optical fiber 4 like this used, there are provided a lamp 5 which supplies light to the plastic optical fiber 4, a light condensing member 6, a heat shielding plate 7, and a heat-ray filter 8 provided between the lamp 5 and the incident end part 2 of the plastic optical fiber 4, a cover body 9 fixed to the light condensing member 6, the heat shielding plate 7, and the heat-ray filter 8, a lighting device 10 provided near the cover body 9, a main body case 12 comprising an air-intake opening 11, and a cooling fan 13 which takes in an outside air into the main case 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art As a conventional plastic optical fiber and a light source device for illumination using the plastic optical fiber, there is a single plastic optical fiber.
The light source lamp was arranged at one end of the plastic optical fiber.

If the light source lamp continues to be turned on, the temperature around the light source lamp rises, and it is necessary to prevent the plastic optical fiber from melting at the incident end. In this method, a glass rod is connected to the incident end to protect the light from heat.

[0004]

However, in such an illuminating device, both the plastic optical fiber and the light source lamp have a small margin with respect to the allowable temperature, and if it is attempted to make light further enter the plastic optical fiber, No matter how the glass rod is connected to the entrance end of the plastic optical fiber to protect it from heat, melting at the entrance end of the plastic optical fiber is unavoidable. The service life was also shortened.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a plastic which can easily increase the amount of incident light while preventing melting at the incident end. An object of the present invention is to provide an optical fiber and an illumination light source device using the plastic optical fiber.

[0006]

According to a first aspect of the present invention, there is provided a plastic optical fiber having a glass rod (3) connected to an incident end (2) to which a base (1) is attached and a glass rod. Part of the rod (3) is the base part (1)
Characterized by projecting from

According to a second aspect of the present invention, a light source device for illumination uses a plastic optical fiber (4) according to the first aspect, and a lamp (5) for supplying light to the plastic optical fiber (4). ) And the incident end (2) of the plastic optical fiber (4), a light-collecting member (6), a heat shield (7), and a heat ray filter (8). And a cover body (9) for fixing the heat shield plate (7) and the heat ray filter (8), respectively.
The lighting device (1) arranged near the cover body (9)
0), the inlet (1) to which the lighting device (10) is attached.
1) and a cooling fan (13) for taking in outside air from the air inlet (11) into the main body case (12). The invention is characterized in that the incident light to (4) is increased and a cooling airflow is formed in the main body case (12) by the cooling fan (13).

According to a third aspect of the present invention, in the illumination light source device, the condensing member (6) increases the light incident on the plastic optical fiber (4) and reduces the direct heat from the lamp (5). It is characterized by having a function of blocking.

According to a fourth aspect of the present invention, in the illumination light source device, the cover body (9) shields heat between the lamp (5) and the lighting device (10), and the lamp (5). ) Also serves as the mounting base (14).

The illumination light source device according to a fifth aspect of the present invention is characterized in that a temperature sensor is provided for shutting off a power switch when the temperature inside the main body case (12) becomes higher than a predetermined temperature. .

According to a sixth aspect of the present invention, in the illumination light source device, the lighting device (10) is dimmable.

According to a seventh aspect of the present invention, in the illumination light source device, the main body case (12) has the intake port (11) on each of a side surface and a bottom surface.

[0013] The illumination light source device according to claim 8 of the present invention is characterized in that the heat ray filter (8) is a heat ray absorption filter that absorbs heat rays.

According to a ninth aspect of the present invention, in the illumination light source device, the heat ray filter (8) is a heat ray reflection filter that reflects a heat ray.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the drawings according to embodiments.

FIG. 1 is a side view showing an illumination light source device using a plastic optical fiber according to an embodiment of the present invention. FIG. 2 is a top view showing an illumination light source device using a plastic optical fiber according to one embodiment of the present invention. FIG. 3 is a sectional view showing a plastic optical fiber according to one embodiment of the present invention.

As shown in FIGS. 1 to 3, the plastic optical fiber of the present invention has a glass rod (3) connected to an incident end (2) to which a base (1) is attached. Part of 3) protrudes from the base part (1).

As shown in FIG. 3, the base part (1)
It is attached to the entrance end (2). As the base part (1), a metal part is usually used. However, as long as it can be attached to the incident end part (2) and can be used for lighting fixtures, it is made of resin or the like. It does not matter if a material of the above type is used. The shape and size of the base part (1) are not limited to those shown.

As shown in FIG. 3, the glass rod (3) is connected to the incident end (2) through the base (1). The shape and size of the glass rod (3) can be freely set according to the shape and size of the incident end (2). In the present invention, a part of the glass rod (3) protrudes from the base (1). The protrusion of the glass rod (3) is not particularly limited, but is preferably a degree that does not hinder handling.

According to the present invention, a glass rod (3) is connected to the incident end portion (2) to protect the heat from the heat by using such a structure. Since the portion protrudes from the base portion (1), the cooling effect of the glass rod (3) is reliably enhanced, and as a result, the incident end portion (2) is more reliably protected from heat. Therefore, even if the amount of incident light at the incident end (2) is further increased, melting at the incident end (2) is surely eliminated, and thus the life of the lamp can be maintained long. Become.

That is, the present invention can easily increase the amount of incident light while preventing melting at the incident end (2).

As shown in FIGS. 1 and 2, the illumination light source device of the present invention uses a plastic optical fiber (4) as described above, and a lamp (5) for supplying light to the plastic optical fiber (4). Lamp (5)
Light collecting member (6), heat shielding plate (7), heat ray filter (8), and light collecting member (6) disposed between the light receiving member (2) and the incident end (2) of the plastic optical fiber (4).
Cover (9) for fixing the heat shield plate (7) and the heat ray filter (8), a lighting device (10) arranged near the cover (9), and the lighting device (10). Body case (1) having an attached air inlet (11)
2) and a cooling fan (13) for taking in outside air from the intake port (11) into the main body case (12), and light incident on the plastic optical fiber (4) by the condensing member (6). And the cooling fan (13) forms a cooling air flow in the main body case (12).

As shown in FIGS. 1 and 2, the lamp (5) supplies light to the plastic optical fiber (4). As this lamp (5),
It may be a light source device for lighting or a device usually used for a simple lighting device.

As shown in FIGS. 1 and 2, the light collecting member (6), the heat shield (7), and the heat ray filter (8) are arranged as shown in FIGS.
It is arranged between the lamp (5) and the incident end (2) of the plastic optical fiber (4). The light collecting member (6), the heat shield plate (7), and the heat ray filter (8) may be all those used in a normal illumination light source device.

As shown in FIGS. 1 and 2, the cover body (9) fixes the light collector (6), the heat shield (7), and the heat ray filter (8). is there. The cover body (9) may be a commonly used one as long as it can fix each of the light-collecting member (6), the heat shield (7), and the heat ray filter (8). Not something.

The lighting device (10) is shown in FIGS.
As shown in (1), it is arranged near the cover body (9). The lighting device (10) may be the one used in a normal lighting light source device.

As shown in FIGS. 1 and 2, the main body case (12) has the lighting device (10) attached thereto and has an air inlet (11). The size and shape of the body case (12) can be freely set without any particular limitation.

As shown in FIGS. 1 and 2, the cooling fan (13) takes in outside air from the intake port (11) into the main body case (12). The size, such as the size of the cooling fan (13), can be freely set according to the size of the main body case (12), the amount of outside air to be taken in from the intake port (11), and the like.

According to the present invention, a glass rod (3) is connected to the incident end (2) of the plastic optical fiber (4) to protect it from heat by adopting such a structure. Since a part of the rod (3) protrudes from the base part (1), the cooling effect of the glass rod (3) is surely enhanced, and as a result, the incident end part (2) is more reliable. Thus, even if the amount of incident light at the incident end (2) of the plastic optical fiber (4) is further increased, the melting at the incident end (2) will surely disappear, and therefore, the plastic optical fiber (4) The life of the lamp (5) for supplying light to the optical fiber (4) can be maintained long. Then, a condenser (6), a heat shield (7), and a heat ray filter (8) are arranged between the lamp (5) and the incident end (2) of the plastic optical fiber (4), respectively, and cooled. Fan (1
By forming a cooling air flow in the main body case (12) in 3), a flow path of outside air taken into the main body case (12) from the air inlet (11) is secured, and the plastic optical fiber (4) is formed. Each of which efficiently cools the incident end (2), the lamp (5) for supplying light to the plastic optical fiber (4), and the lighting device (10) arranged near the cover (9). Become.

That is, the present invention can easily increase the amount of incident light while preventing melting at the incident end (2).

Further, if the light collecting member (6) has a function of increasing the light incident on the plastic optical fiber (4) and blocking the direct heat from the lamp (5), the light collecting member (6) can be formed as follows. The light member (6) has a function of blocking direct heat from the lamp (5) while increasing the incident light to the plastic optical fiber (4), and the direct light from the lamp (5) is also provided by the light collecting member (6). Heat can be reliably prevented from reaching the incident end (2), and as a result, the incident end (2) can be more reliably protected.

Further, as shown in FIG. 1 and FIG. 2, the cover (9) shields heat between the lamp (5) and the lighting device (10), and also includes the lamp (5).
When the cover (9) also serves as the mounting base (14), the cover body (9) shields heat between the lamp (5) and the lighting device (10), so that the cooling fan (13) allows the main body case (1).
2) The cooling air flow in the inside can be formed more reliably, and the flow path of the outside air taken into the main body case (12) from the intake port (11) can be more reliably secured. Becomes The lamp (5) can be securely mounted on the mounting base (14) without providing a separate member because the cover body (9) also serves as the mounting base (14) for the lamp (5). .

In particular, if a temperature sensor for shutting off the power switch is provided when the temperature of the inside of the main body case (12) becomes equal to or higher than a predetermined temperature, the main body case (12) is provided with such a temperature sensor. When the temperature inside the
Turn off the power switch by itself and set the cooling fan (13)
To more reliably form a cooling airflow in the main body case (12) by the above-described method, and to more reliably secure a flow path of the outside air taken into the main body case (12) from the intake port (11). Can be done.

If the lighting device (10) is dimmable, the dimmable lighting device (10) can freely control the intensity of light as needed, By such light control, efficient cooling of the lighting device (10) can be naturally assisted.

As shown in FIGS. 1 and 2, when the main body case (12) has the intake port (11) on each of a side surface and a bottom surface, such a side surface and a bottom surface are provided. Air inlets (1
In 1), the flow path of the outside air introduced into the main body case (12) can be more reliably secured, and light is incident on the incident end (2) of the plastic optical fiber (4) and the plastic optical fiber (4). The lamp (5) to be supplied and the lighting device (10) arranged near the cover body (9) are each cooled more efficiently.

That is, as shown in FIGS. 1 and 2,
The lighting device (10) is cooled more efficiently by the flow path of the outside air taken in from the first intake port (11a) on the bottom surface as shown by the arrow in the drawing. , Plastic optical fiber (4) incident end (2)
However, it is more efficiently cooled by the flow path of the outside air taken in from the second intake port (11b) on the bottom surface as shown by the arrow in the figure. The reason why the lamp (5) is cooled more efficiently is due to the flow path of the outside air taken in from the third air inlet (11c) on the side surface.

If the heat ray filter (8) is a heat ray absorption filter that absorbs heat rays, the lamp (5) that supplies light to the plastic optical fiber (4) by the heat ray filter (8) that absorbs heat rays. ) Absorbs the heat rays from the light, and prevents the infrared component, which is the heat ray of the light of the lamp (5), from reaching the incident end (2), thereby further ensuring the incident end (2). Can be protected.

Similarly, the hot-wire filter (8)
If the filter is a heat ray reflection filter that reflects heat rays, a heat ray filter (8) that reflects heat rays reflects heat rays from the light of the lamp (5) that supplies light to the plastic optical fiber (4). The infrared ray component, which is a heat ray of the light, is prevented from reaching the incident end portion (2), and the incident end portion (2) can be more reliably protected.

[0039]

According to the plastic optical fiber according to the first aspect of the present invention, a glass rod (3) is provided at the input end (2).
Is connected and protected from heat, and a part of the glass rod (3) protrudes from the base (1),
As a result, the cooling effect of the glass rod (3) is reliably enhanced, and as a result, the incident end (2) is more reliably protected from heat, and the amount of incident light at the incident end (2) is increased. Is further increased, the melting at the incident end (2) is surely eliminated, so that the life of the lamp can be maintained long.

That is, the present invention can easily increase the amount of incident light while preventing melting at the incident end (2).

According to the illumination light source device of the second aspect of the present invention, the glass rod (3) is connected to the incident end (2) of the plastic optical fiber (4) to protect it from heat. Since a part of the glass rod (3) protrudes from the base part (1), the cooling effect of the glass rod (3) is surely enhanced, and as a result, the incident end part (2) is more improved. It is more reliably protected from heat, and even if the amount of incident light at the incident end (2) of the plastic optical fiber (4) is further increased, melting at the incident end (2) is surely eliminated, and In addition, the life of the lamp (5) for supplying light to the plastic optical fiber (4) can be maintained long. Then, a condenser (6), a heat shield (7), and a heat ray filter (8) are arranged between the lamp (5) and the incident end (2) of the plastic optical fiber (4), respectively, and cooled. Fan (1
By forming a cooling air flow in the main body case (12) in 3), a flow path of outside air taken into the main body case (12) from the air inlet (11) is secured, and the plastic optical fiber (4) is formed. Each of which efficiently cools the incident end (2), the lamp (5) for supplying light to the plastic optical fiber (4), and the lighting device (10) arranged near the cover (9). Become.

That is, according to the present invention, it is possible to easily increase the amount of incident light while preventing melting at the incident end (2).

According to the illumination light source device of the third aspect of the present invention, in addition to the second aspect, the light collecting member (6)
Has the function of blocking the direct heat from the lamp (5) while increasing the incident light to the plastic optical fiber (4), and the direct heat from the lamp (5) is applied to the incident end by the light condensing member (6). It is possible to reliably prevent the light from reaching (2), and as a result, it is possible to more surely protect the incident end (2).

According to the illumination light source device of the fourth aspect of the present invention, in addition to the case of the second or third aspect,
Since the cover body (9) shields heat between the lamp (5) and the lighting device (10), the cooling fan (13) forms the cooling airflow in the main body case (12) more reliably. And the main body case (1
2) It is possible to more surely secure the flow path of the outside air taken in. The lamp (5) can be securely mounted on the mounting base (14) without providing a separate member because the cover body (9) also serves as the mounting base (14) for the lamp (5). .

According to the illumination light source device of the fifth aspect of the present invention, in addition to the case of any of the second to fourth aspects, the main body case (12) is provided with such a temperature sensor.
When the temperature of the inside becomes higher than a predetermined temperature, the power switch is automatically shut off, and the main body case (1) is set by the cooling fan (13).
2) The cooling air flow in the inside can be more reliably formed so that the flow path of the outside air taken into the main body case (12) from the intake port (11) can be more reliably secured. Become.

According to the illumination light source device of the sixth aspect of the present invention, in addition to the case of any one of the second to fifth aspects, the dimmable lighting device (10) is free as required. The intensity of light can be freely increased and decreased, and such dimming can naturally assist efficient cooling of the lighting device (10).

According to the illumination light source device according to claim 7 of the present invention, in addition to the case described in any one of claims 2 to 6, in addition to the intake ports (11 ), The flow path of the outside air introduced into the main body case (12) can be more reliably secured, and light is supplied to the incident end (2) of the plastic optical fiber (4) and the plastic optical fiber (4). The lamp (5) and the lighting device (10) disposed near the cover (9) are more efficiently cooled.

According to the illumination light source device according to claim 8 of the present invention, in addition to the case described in any one of claims 2 to 7, the plastic optical fiber (4) is filtered by the heat ray filter (8) for absorbing heat rays. ) Absorbs the heat rays from the light of the lamp (5) that supplies the light, and prevents the infrared component, which is the heat ray of the light of the lamp (5), from reaching the incident end (2). The end (2) can be more reliably protected.

According to the illuminating light source device of the ninth aspect of the present invention, in addition to the configuration of any one of the second to seventh aspects, the plastic optical fiber (4) is formed by the heat ray filter (8) that reflects the heat ray. ) Is reflected by a heat ray from the light of the lamp (5) for supplying light to the light source to prevent the infrared ray component, which is the heat ray of the light of the lamp (5), from reaching the incident end (2). The end (2) can be more reliably protected.

[Brief description of the drawings]

FIG. 1 is a side view showing an illumination light source device using a plastic optical fiber according to an embodiment of the present invention.

FIG. 2 is a top view showing an illumination light source device using a plastic optical fiber according to one embodiment of the present invention.

FIG. 3 is a cross-sectional view illustrating a plastic optical fiber according to an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base part 2 Incident end part 3 Glass rod 4 Plastic optical fiber 5 Lamp 6 Light condensing member 7 Heat shield plate 8 Heat ray filter 9 Cover body 10 Lighting device 11 Intake port 12 Main body case 13 Cooling fan 14 Mounting stand

Claims (9)

[Claims] 1. A plastic optical fiber, wherein a glass rod is connected to an entrance end to which a base is attached, and a part of the glass rod projects from the base. 2. A lamp that uses the plastic optical fiber according to claim 1 to supply light to the plastic optical fiber, a light condensing member and a heat shield plate disposed between the lamp and an incident end of the plastic optical fiber. A heat ray filter, a cover body for fixing each of the light-collecting member, the heat shield plate and the heat ray filter, a lighting device arranged near the cover body, a main body case having an intake port to which the lighting device is attached, and A cooling fan that takes in outside air from the intake port into the main body case, and increases the incident light to the plastic optical fiber with the condensing member, and the cooling fan allows a cooling air flow into the main body case. An illumination light source device characterized by being formed. 3. The illumination device according to claim 2, wherein the light condensing member has a function of increasing incident light to the plastic optical fiber and a function of blocking direct heat from the lamp. Light source device. 4. The lamp according to claim 2, wherein the cover shields heat between the lamp and the lighting device, and also serves as a mounting base for the lamp. Light source device for lighting. 5. The illumination light source device according to claim 2, further comprising a temperature sensor for shutting off a power switch when the temperature inside the main body case becomes equal to or higher than a predetermined temperature. . 6. The illumination light source device according to claim 2, wherein the lighting device is dimmable. 7. The illumination light source device according to claim 2, wherein the main body case has the intake port on each of a side surface and a bottom surface. 8. The heat ray filter according to claim 2, wherein the heat ray filter is a heat ray absorption filter for absorbing heat rays.
An illumination light source device according to claim 7. 9. The heat ray filter according to claim 2, wherein the heat ray filter is a heat ray reflection filter that reflects heat rays.
An illumination light source device according to claim 7.