JP2001185784A - Laser beam transmitting device and cap and shutter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve safety by realizing certain safety countermeasure to the erroneous irradiation of laser beams. SOLUTION: A cap member 14 into which photosensitive agent 141 which is allowed to emit lights when exposed to laser beams is mixed is selectively mounted on a light transmitting connector 11 formed at an equipment case body 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laser light transmitting device, a cap, and a shutter used in, for example, an optical communication system, a laser measuring device, a laser processing device, and the like.

[0002]

2. Description of the Related Art In general, in an optical communication system, an optical transmission connector for an external connection constituting a laser light transmitting section is provided in a device housing of a laser light transmitting device for transmitting the laser light. An optical receiving device is connected to the connector via an optical fiber cable. In such a laser light transmitting device, as a safety measure, a connector protection cap is attached to the optical transmission connector when the optical receiving device is not connected to the optical transmission connector.

[0003] Accordingly, even if the laser beam is transmitted due to a malfunction of the laser beam transmitting section in an unused state, for example, the laser beam can be leaked outside by the connector protection cap. Is prevented from entering the eyes of the user or the like, and safety is maintained.

However, in the above-mentioned laser light transmitting device, if laser light is transmitted from the optical transmission connector in the state where the connector protection cap is mounted, leakage to the outside is shielded by the connector protection cap and safety is ensured. However, it is difficult to determine whether or not the laser beam is being transmitted. According to this, while laser light is being transmitted from the optical transmission connector, there is a risk that the connector protection cap may be removed to connect the optical receiver to the optical transmission connector. With the problem.

[0005] Such a situation is not limited to a laser beam transmitting device used in the field of an optical communication system. For example, a laser beam transmitting device in the field of measurement using a laser beam or the field of laser beam machining such as welding. The same applies to.

[0006]

As described above, the conventional laser light transmission device has a problem that the safety against erroneous irradiation of laser light is poor.

The present invention has been made in view of the above circumstances, and provides a laser beam transmitting device, a cap, and a shutter which can realize a reliable safety measure against erroneous irradiation of a laser beam with a simple configuration. The purpose is to:

[0008]

According to the present invention, there is provided an apparatus housing provided with a laser beam transmitting section, and the apparatus casing is detachably attached to the laser beam transmitting section of the apparatus casing. A laser light transmitting device was provided with a cap member mixed with or attached to a light-emitting photosensitive agent.

According to the above configuration, when the laser beam is transmitted from the laser beam transmitting section, the cap member informs the user that the laser beam is being transmitted by emitting the photosensitive agent, The user is prompted to stop transmitting laser light.

Therefore, when the cap member attached to the laser beam transmitting section is detached from the laser beam transmitting section, the presence or absence of the transmission of the laser beam can be reliably determined, thereby further improving the safety. Becomes

Further, the present invention provides an apparatus housing provided with a laser beam transmitting section, a first position facing the laser beam transmitting section in the apparatus casing, and a laser beam transmitting section of the laser beam transmitting section. And a shutter member which is movably provided at a second position which allows a laser beam to be emitted, and which includes or is coated with a photosensitive agent which emits light when irradiated with a laser beam.

According to the above configuration, the shutter member is opposed to the laser light transmitting portion at the first position, and the photosensitive agent emits light when the laser light is transmitted from the laser light transmitting portion. Thus, the user is notified that the laser beam is being transmitted, and the user is prompted to stop transmitting the laser beam.

Therefore, when the shutter member, which controls the first position, is moved from the laser light transmitting section to the second position where laser light transmission is permitted, the presence / absence of laser light transmission can be determined with certainty. It is possible to improve the performance.

Further, the present invention is to be attached to and detached from the laser light transmitting section of an equipment housing provided with a laser light transmitting section, and is formed of a transparent or translucent resin material. The cap was formed by mixing or adhering a photosensitive agent which emits light when hit.

According to the above configuration, when the laser beam is transmitted from the laser beam transmitting section, the photosensitive agent emits light, thereby notifying the user that the laser beam is being transmitted, and transmitting the laser beam. Urge you to stop.

Therefore, when the laser beam is separated from the laser beam transmitting section, the presence or absence of the transmission of the laser beam can be determined with certainty.
It is possible to further improve safety.

According to the present invention, a first position facing the laser light transmitting portion is provided on an equipment housing provided with the laser light transmitting portion, and a second position allowing the laser light transmitting portion to transmit laser light. A shutter which is movably provided at a position, is made of a transparent or translucent resin material, and is mixed or covered with a photosensitive agent which emits light when irradiated with a laser beam.

According to the above configuration, at the first position, when the laser light is transmitted from the laser light transmitting unit and the laser light is transmitted from the laser light transmitting unit, the photosensitive agent emits light, so that the user can emit light. Informs that the laser light is being transmitted, and urges the user to stop transmitting the laser light.

Therefore, when the laser beam is transmitted from the laser beam transmitting section to the second position where the laser beam is allowed to be transmitted, it is possible to reliably determine whether or not the laser beam is transmitted, thereby improving safety. It becomes possible.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a laser beam transmitting device, a cap and a shutter according to an embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows a laser beam transmitting device and a cap according to an embodiment of the present invention.
At 0, an external connection optical transmission connector 11 constituting a laser light transmission section is fixedly arranged. This optical transmission connector 11
Is connected to a laser light transmitting unit (not shown) housed and arranged in the device housing 10, and is connected to the laser light transmitting unit (not shown).
Is supplied.

The optical transmission connector 11 includes, for example, a connection connector 13 provided at one end of an optical fiber cable 12.
Are selectively connected, and optically connected to an optical receiver (not shown) via the optical fiber cable 12. When the laser light is supplied from the laser light transmitting section (not shown), the optical transmission connector 11 transmits the laser light through the connector 13 and the optical fiber cable 12 to the optical receiver (not shown). )).

The optical transmission connector 11 is provided with a cap which is a feature of the present invention when the optical transmission connector 11 is not connected to the optical receiver (not shown) via the connector 13 and the optical fiber cable 12. The constituent cap member 14 is selectively mounted. The cap member 14 is formed of, for example, a transparent or translucent resin material in a substantially cylindrical shape with a bottom, and a photosensitive agent 141 that emits light when irradiated with laser light is mixed into the resin material.

The cap member 14 is attached to and supported by the optical transmission connector 11 or a part of the device housing 10 by using, for example, an attachment cord (not shown) so that the cap member 14 is selectively attached to the optical transmission connector 11. Be composed. As a result, the storage of the cap member 14 can be ensured, and the cap member 14 can be reliably prevented from being missing in a required state, thereby improving the usability.

In the above configuration, the cap member 14 is
When laser light is being transmitted from the optical transmission connector 11 in a state where the laser light is mounted on the optical transmission connector 11, the laser light is applied to the photosensitive agent 141 in the resin material. Here, the laser light transmitted from the optical transmission connector 11 is emitted by the photosensitive agent 141 of the cap member 14 and emitted as visible light outside the cap member 14.

As a result, the user, including the installation worker,
In a state where the cap member 14 is attached to the optical transmission connector 11, by confirming the presence of visible light accompanying light emission from outside the cap member 14, the optical transmission connector 1
It is determined whether the laser light from 1 is being transmitted or leaked.

Therefore, when visible light accompanying emission is confirmed from the outside with the cap member 14 attached to the optical transmission connector 11, the user determines that laser light is being transmitted, A process for stopping transmission of light or stopping leakage of laser light is executed.

Next, the user confirms that there is no visible light from the outside of the cap member 14, and then detaches the cap member 14 from the optical transmission connector 11, and connects the connector 13 and the optical fiber cable. The optical receiving device (not shown) is connected and arranged via the reference numeral 12.
Thereby, the connection connector 13 to the optical transmission connector 11
Secure connection work is realized.

As described above, the laser light transmitting device is provided with the optical transmission connector 11 provided in the equipment housing 10.
The cap member 14 mixed with the photosensitive agent 141 that emits light when irradiated with laser light is selectively mounted.

According to this, in a state where the cap member 14 is mounted, when the laser beam is transmitted from the optical transmission connector 11, the laser beam is applied to the photosensitive agent 141. Then, when the photosensitive agent 141 emits light, the cap member 14 can recognize that the user is transmitting the laser beam from outside. As a result,
In a state where the laser beam is being transmitted from the optical transmission connector 11, the cap member 14 can be reliably prevented from being detached from the optical transmission connector 11, so that safety can be further improved.

In the above-described embodiment, the optical transmission connector 11 constituting the laser light transmission section is fixedly arranged on the equipment housing 10 and the optical transmission connector 11 is provided with the cap member 14.
Has been described, but the present invention is not limited to this. For example, as shown in FIG.
1 to the device housing 10 using the optical fiber cable 111.
The present invention is also applicable to a laser light transmitting structure having a configuration in which the cap member 14 is attached to the optical transmission connector 11 so as to extend from the optical transmission connector 11, and substantially the same effect can be expected.

The laser transmitting apparatus and the shutter according to the present invention include a substantially plate-shaped shutter member 15 constituting a shutter and a support mechanism 16 on the front surface of the optical transmission connector 11 as shown in FIGS. The shutter member 15 is configured to receive laser light from the optical transmission connector 11.

That is, the shutter member 15 is formed of, for example, a transparent or translucent resin material.
A photosensitive agent 151 that emits light when irradiated with laser light is mixed in (see FIG. 6). The shutter member 15 pivots to a position facing the tip of the optical transmission connector 11 via the support mechanism 16 by its own weight in a state where the connection connector 13 of the optical fiber cable 12 is not attached to the optical transmission connector 11. Is done.

With the above configuration, the shutter member 15
When a laser beam is transmitted from the optical transmission connector 11, the laser beam is applied to the photosensitive agent 151 to emit the photosensitive agent 151, thereby transmitting the laser beam or notifying that the laser beam is leaked. Here, similarly, the laser light transmitting unit (not shown) in the device housing 10 is adjusted to stop the transmission of the laser light or the leakage of the laser light, and confirm that the shutter member 15 is not emitting light. Confirm.

Next, the shutter member 15 is inverted to the position shown by the broken line in FIG. Then, the shutter member 15
Is separated from the optical transmission connector 11, the optical transmission connector 11 is released to allow external connection, and the connection connector 13 of the optical fiber cable 12 is connected.

The shutter member 15 includes:
The present invention is not limited to the configuration in which the optical transmission connector 11 is rotatably arranged and is separated from the optical transmission connector 11 so as to be able to transmit.
Various types of structures such as slidable arrangement with respect to the optical transmission connector 11 can be configured.

The support mechanism 16 may also be provided with a spring mechanism for urging the shutter member 15 at a position facing the optical transmission connector 11. That is, the shutter member 15 is moved by the urging force of the spring mechanism.
The shutter member 15 is positioned at a position facing the optical transmission connector 11 so that
When it is separated from the front end of the first spring, it is configured to perform against the urging force of the spring mechanism.

According to this, since the shutter member 15 can be reliably arranged at a position facing the optical transmission connector 11, the reliability of the shutter operation can be improved. Safety can be improved.

The shutter member 15 includes:
The present invention is not limited to the plate shape as described above, and may be configured using various shapes such as a cylindrical shape with a bottom.

Further, in each of the above embodiments, the photosensitive agent 1
41, 151 are the cap member 14 and the shutter member 1
5 is described, but the present invention is not limited to this. Alternatively, the photosensitive agents 141 and 151 may be configured to be attached to the surfaces of the cap member 14 and the shutter member 15. , Almost the same effect is expected.

In the above embodiment, the case where the present invention is applied to a laser light transmitting device of an optical communication system has been described. However, the present invention is not limited to this. The present invention is also applicable to a laser light transmission device in the field of optical processing, and substantially the same effects are expected.

Therefore, it is needless to say that the present invention is not limited to the above-described embodiment, but can be variously modified without departing from the gist of the present invention.

[0043]

As described above in detail, according to the present invention, there are provided a laser beam transmitting device, a cap and a shutter which can realize a reliable safety measure against erroneous irradiation of a laser beam with a simplified configuration. can do.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a laser beam transmitting device and a cap according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view shown for explaining a state in which a connector of an optical fiber cable is connected to the optical transmission connector of FIG. 1;

FIG. 3 is a partial cross-sectional view showing a state where the cap of FIG. 1 is attached to an optical transmission connector of a device housing.

FIG. 4 is an exploded perspective view shown for explaining a laser beam transmitting device according to another embodiment of the present invention.

FIG. 5 is an exploded perspective view for explaining a laser beam transmitting device and a shutter according to another embodiment of the present invention.

FIG. 6 is an exploded perspective view shown for explaining the operation state of the shutter in the embodiment of FIG. 5;

[Description of Signs] 10 ... Device housing. 11 Optical transmission connector. 111 Optical fiber cable. 12 ... Optical fiber cable. 13 Connection connector. 14 Cap member. 141 Photosensitizer. 15 Shutter member. 151 Photosensitizer. 16 ... support mechanism section.

Claims (4)

[Claims] 1. A device housing provided with a laser light transmitting unit, and a photosensitive agent which is attached to and detached from the laser light transmitting unit of the device housing and emits light when irradiated with a laser beam. A laser light transmitting device comprising: a fitted cap member. 2. A laser light transmitting unit which is attached to and detached from the laser light transmitting unit of a device housing provided with a laser light transmitting unit, and is formed of a transparent or translucent resin material, and emits light when irradiated with a laser beam. A cap characterized in that a photosensitive agent is mixed or applied. 3. A device housing provided with a laser light transmitting unit, a first position facing the laser light transmitting unit in the device housing, and a first position allowing the laser light transmitting unit to transmit laser light. And a shutter member movably provided at the position No. 2 and having a photosensitive material which emits light when irradiated with a laser beam mixed or applied thereto. 4. An apparatus housing provided with a laser light transmitting section is movable to a first position facing the laser light transmitting section and to a second position allowing the laser light transmitting section to transmit laser light. A shutter made of a transparent or translucent resin material, wherein a photosensitive agent that emits light when irradiated with a laser beam is mixed or attached.