JPH058506U - Optical connector - Google Patents

Abstract

(57) [Abstract] [Purpose] When the connector is disconnected, the laser light emitted from the connector part on the light emitting device side is cut off for safety. [Structure] The optical connector 1 is an optical fiber 2a on the light emitting device 5 side.
The signal line 3 from the light emitting device 6 side is connected to the loop line 4 at the same time when the optical fiber 2b on the transmission path side is connected to the optical fiber 2b and the two lines are short-circuited to send a loop signal to the light emitting device 5 side. . When the optical connector 1 is disconnected, the connection between the optical fiber 2a and the optical fiber 2b and the connection between the signal line 3 and the loop line 4 are cut off. Therefore, in the signal line 3, the loop signal up to now changes into an open signal. The light emitting device 5 is
With this open signal, the light emission output is stopped by, for example, turning off the power of the light emitting element.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an optical connector, and more particularly to an optical connector that outputs a control signal for shutting off an optical output.

[0002]

[Prior Art]

 Laser light transmitted by an optical fiber is dangerous because even if it has a small power, it will cause blindness and other harm if it enters the eyes of humans. For this reason, safety measures for handling such products are defined by safety standards. In the case of an optical connector, laser light emitted from the optical fiber on the light emitting device side is dangerous when the connector is disconnected.

Conventionally, in this type of optical connector, the connector on the light emitting device side is manually covered with a light shielding cover when the connector is removed.

[0004]

[Problems to be solved by the device]

 As described above, in the conventional example, the lid is manually put on, so that it is often forgotten to put the lid on, and there is a problem that the danger cannot be completely prevented.

[0005]

[Means for Solving the Problems]

 The optical connector of the present invention is an optical connector for connecting an optical fiber on the light emitting device side and an optical fiber on the transmission line side, wherein two signal lines for optical control connected to the light emitting device side are connected to the optical fiber on the light emitting device side. At the same time as connecting the optical fiber on the transmission line side, an electric circuit for sending a loop signal to the light emitting device side by short-circuiting the two signal lines is provided.

[0006]

【Example】

 Next, an embodiment of the present invention will be described with reference to the drawings. 1A and 1B show the configuration of this embodiment. FIG. 1A is a configuration diagram when an optical connector is connected, and FIG. 1B is a configuration diagram when the optical connector is removed. The optical connector 1 is composed of a connector portion 1a on the light emitting device 5 side and a connector portion 1b on the transmission path side. In the state of FIG. 1A, the optical connector 1 connects the optical fiber 2a on the light emitting device 5 side and the optical fiber 2b on the transmission path side, and at the same time, connects the signal line 3 from the light emitting device 6 side to the loop line 4. After connecting, the two lines are short-circuited to send a loop signal to the light emitting device 5 side. The signal line 3 and the loop line 4 are connected by an electrical connector (not shown) provided between the connector portion 1a and the connector portion 1b.

When the connection of the optical connector 1 is disconnected, that is, in the state of FIG. 1B, the connection between the optical fiber 2 a and the optical fiber 2 b and between the signal line 3 and the loop line 4 are disconnected. Therefore, in the signal line 3, the loop signal up to now changes into an open signal. In the light emitting device 5, the open signal stops the light emission output by turning off the power source of the light emitting element such as a laser diode.

[0008]

[Effect of the device]

 As described above, according to the present invention, the control signal for light blocking, that is, the open signal is sent to the light emitting device side at the same time when the connector is disconnected. Therefore, the light output can be blocked on the light emitting device side. This interruption can be done automatically and surely, which is effective for safety. It should be noted that this control signal has an effect that it can be used as alarm information not connected to the connector by the monitoring unit on the light emitting device side.

[Brief description of drawings]

FIG. 1 shows a configuration of the present embodiment, (a) is a configuration diagram when an optical connector is connected, and (b) is a configuration diagram when an optical connector is removed.

[Explanation of symbols]

 1 Optical Connector 2a, 2b Optical Fiber 3 Signal Line 4 Loop Line 5 Light Emitting Device

Claims (1)

Claims for utility model registration: 1. In an optical connector for connecting a light emitting device side optical fiber and a transmission path side optical fiber, two optical control signal lines connected to the light emitting device side are provided. An optical connector comprising an electrical connection circuit that short-circuits the two signal lines and sends a loop signal to the light emitting device side when connecting the light emitting device side optical fiber and the transmission path side optical fiber.