JPH0536417U - Light switch - Google Patents

Abstract

(57) [Abstract] [Purpose] An optical switch having good performance is provided by absorbing the light when the light is closed to prevent the harmful effects of light reflection. In an optical switch in which a converter 6 slides left and right on an inner surface of a switch body 1 to open and close an optical path, a prism (transparent body) 15 is arranged on the sliding surface of the converter 6 and its vicinity A recess 13 is provided to block the optical path. Further, the sliding piece 11 via the coil spring 12 is arranged close to the prism 15.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an optical switch that opens and closes an optical path, and in particular, forms a recess on the lower surface of a converter, and absorbs the light when it is closed when it is introduced into a light conducting member fixed to the main body. The present invention relates to an optical switch that prevents harmful effects due to leakage, reflection, and return of light.

[0002]

[Prior Art]

 Conventionally, an optical switch of this type is generally one in which a handle is operated and light is blocked by a blocking means to switch an optical path.

[0003]

[Problems to be solved by the device]

 However, the above-mentioned conventional optical switch has a drawback that a large amount of light is lost due to leakage or reflection of light, resulting in deterioration of performance. An object of the present invention is to eliminate the above-mentioned problems, and in particular, to absorb the light at the time of closing the light to prevent the adverse effects of the reflection of the light, and to provide an optical switch with good performance.

[0004]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides an optical switch in which a switching element slides left and right on an inner surface of a switch body to open and close an optical path, and a translucent body is arranged on the sliding surface of the switching element. A recess for blocking the optical path is provided in the vicinity. In addition, a sliding piece with a spring is arranged in the vicinity of the translucent body provided on the converter.

[0005]

[Action]

 According to the present invention, since it is configured as described above, when the handle is operated, the translucent body provided on the sliding surface of the conversion element fluctuates left and right, moves on the optical receptacle and opens and closes the optical path. When the light path is blocked, the recess that blocks the light path is located, and the leaked light is not reflected but is absorbed by the recess. The inside of this recess is tapered and its inner peripheral surface is made rough, or a light absorbing member is arranged to absorb the leaked light.

Further, by disposing the sliding piece via the spring in the vicinity of the translucent body provided on the converter, it is possible to clean the surface of the optical receptacle and prevent light leakage when the optical path is closed. You can

[0007]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 is a front sectional view showing a conducting state of an optical switch showing a first embodiment of the present invention, FIG. 2 is a front sectional view showing a closed state of an optical switch showing the first embodiment of the present invention, and FIG. FIG. 4 is an exploded perspective view of an essential part of the optical switch, and FIG. 4 is a rear perspective exploded view of the converter of the optical switch.

In these figures, two holes 2 are formed in the inner bottom surface of a switch body 1 having an open top surface, and a pair of optical receptacles 5a, 5b for connecting an optical fiber (not shown) are provided therein. To do. A slidable converter 6 is arranged on the inner bottom of the switch body 1. This converter 6 has a recess 9 on the back side thereof for accommodating a triangular prism 15 from the left side, a hole 10 for accommodating a wide sliding piece 11 and a coil spring 12 for pressing it, and a light absorbing means, here carbon. A tapered recess 13 to which the powder 14 is applied is formed. The inner peripheral surface of the recess 13 may be roughened, or a light absorbing member such as carbon fiber may be installed.

Further, a protrusion 3 is formed on the inner surface of the central portion of the switch body 1, and a U-shaped receiving groove 4 is formed therein. Further, a shallow wide concave portion 7 and a deep concave portion 8 having a step are formed on the central side surface portion of the converter 6. A holding plate 20 is provided on the upper part of the converter 6, and the holding plate 20 is provided with parallel rectangular holes 21. Further, on the side portion of the rectangular hole 21, the above-mentioned projection is provided. A recess 24 that fits in the portion 3 is formed, and screw holes 22 into which screws 23 are screwed are provided at both ends. An actuator 25 is arranged on the holding plate 20, and the actuator 25 has a shaft 26 protruding on both sides and two hanging pieces 27 extending downward. The lower end of the coil spring 28 contacts the upper surface of the operator 25, and the groove 34 at the lower end of the handle 30 engages with the upper end of the coil spring 28. Further, a through hole 32 is formed in the enlarged portion 31 of the handle 30, and a pin 33 is inserted into the through hole 32.

An upper portion of the switch body 1 is covered with a cover 40, and a sleeve 41 is provided at the center of the cover 40, and the pin 33 of the handle 30 is fixed to the sleeve 41, and the handle 30 is It is swingably supported. That is, the sleeve 41 protruding from the cover 40 that covers the opening of the switch body 1 is integrally formed, and the handle 30 is pivotally supported by the pin 33 in the sleeve 41, and the groove 34 below the handle 30 and the actuator 25 are formed. A coil spring 28 is installed between them. The switch body 1 and the cover 40 are fixed with screws or the like.

The switching element 6 thus arranged can be slid left and right between the inner bottom surface of the switch body 1 and the pressing plate 20 via the sliding piece 11. The operator 25 has a shaft 26 at the front and rear, and is loosely fitted in the receiving groove 4 on the upper surface of the switch body 1 to be swingable. Further, the hanging piece 27 of the operator 25 is inserted into the rectangular hole 21 of the pressing plate 20 and engages with the concave portion 8 of the converter 6 so as to be arranged and engaged with the central portion sandwiched therebetween and interlocked with the handle 30. Then the switching element 6 is switched.

In the optical switch configured as described above, when the handle 30 is operated, the hanging piece 27 of the actuator 25 slides the converter 6 to open and close between the optical receptacles 5a and 5b. That is, the optical path can be conducted as shown in FIG. 1 or can be closed as shown in FIG. When the converter 6 slides, the slider 11 acts to clean the surface of the optical receptacle 5a.

Further, as shown in FIG. 2, when the optical path is closed, the sliding piece 11 is arranged between the optical receptacles 5a and 5b, so that the effect of blocking the leaked light is exerted. FIG. 5 is a front sectional view of an optical switch according to a second embodiment of the present invention, and FIG. 6 is a rear exploded perspective view of a converter of the optical switch. In this embodiment, an arc-shaped light-transmitting body 52 is provided instead of the triangular prism 15. That is, a concave groove 51 is provided on the lower surface of the converter 50, an arc-shaped light transmitting body 52 is arranged, and the arc-shaped light transmitting body 52 is arranged by inserting a pressing member 59. In addition, two recesses 53 and 57 are provided, a wide sliding piece 55 is disposed in the recess 53 via a coil spring 54, and the recess 57 is a light absorbing member formed of carbon fiber. 58 is inserted. The other parts are the same as those in the above-described first embodiment, and the description thereof will be omitted.

FIG. 7 is a sectional view of an optical switch showing a third embodiment of the present invention. In this embodiment, a switch 70 having the same structure as that described above is mounted in the switch body 60. Similar to the above embodiment, the converter 70 has a recess 71 for accommodating the prism 72, a hole 73 for accommodating the slider 74 and the coil spring 75, and a taper-shaped recess 76 for shielding light. ing. A hole 61 for fixing the pair of optical receptacles 63a and 63b is formed on the bottom surface of the switch body 60, and a recess 62 for receiving one end of the coil spring 77 is formed on the inner surface of the left end.

Therefore, the other end of the coil spring 77 is in contact with the converter 70 to urge the converter 70 to the right. Further, a magnetic body 78 is provided at the right end of the converter 70, an iron core 81 is arranged so as to be in contact with the magnetic body 78, and an electromagnetic coil 82 is wound around the iron core 81 to form an electromagnet 80. To do. The electromagnet 80 slides the converter 70 left and right to open and close between the optical receptacles 63a and 63b. In addition, in this embodiment, the inner peripheral surface of the tapered recess 76 of the converter 70 is formed to be a rough surface.

Further, the present invention is not limited to the above-described embodiments, and various modifications can be made based on the spirit of the present invention, and they are not excluded from the scope of the present invention.

[0017]

[Effect of the device]

 As described in detail above, according to the present invention, the following effects can be obtained. (1) According to the present invention, since the translucent body and the recess for absorbing light are provided on the lower surface of the converter, it is possible to completely absorb and block the leaked light, thereby causing a failure. Can prevent life.

(2) According to the present invention, by providing the translucent body and the recess for absorbing light on the lower surface of the converter, it is possible to prevent the reflection of the introduced light and the obstacle due to the backflow. (3) By forming the recess provided on the lower surface of the converter in a tapered shape, the number of times the light is internally reflected increases, and the light attenuation and absorption effects can be enhanced. (4) By placing a sliding piece with a spring on the bottom surface of the converter, a cleaning effect that wipes off dust on the upper surface of the optical receptacle and fogging due to temperature change each time the converter slides to the left and right. It can be played and can maintain a normal state for a long time.

(5) By disposing the sliding piece via the spring on the lower surface of the converter, the sliding piece is positioned between the optical receptacles when the converter slides, so that the leaked light is shielded. It is possible to obtain an optical switch having an excellent shielding effect.

[Brief description of drawings]

FIG. 1 is a front sectional view showing a conducting state of an optical switch according to a first embodiment of the present invention.

FIG. 2 is a front sectional view showing a closed state of the optical switch according to the first embodiment of the present invention.

FIG. 3 is an exploded perspective view of essential parts of the optical switch according to the first embodiment of the present invention.

FIG. 4 is an exploded perspective view of the rear surface of the converter of the optical switch according to the first embodiment of the present invention.

FIG. 5 is a front sectional view showing a closed state of an optical switch according to a second embodiment of the present invention.

FIG. 6 is a rear exploded perspective view of a converter of an optical switch according to a second embodiment of the present invention.

FIG. 7 is a sectional view of an optical switch showing a third embodiment of the present invention.

[Explanation of symbols]

 1,60 Switch body 5a, 5b, 63a, 63b Optical receptacle 6,70 Switching element 11,55,74 Sliding piece 12, 28,54,75 Coil spring 13,57,76 Tapered recess 15,72 Prism 20 Holding plate 21 Rectangular hole 25 Actuator 27 Hanging piece 30 Handle 33 Pin 40 Cover lid 41 Sleeve 52 Light transmitting body 58 Light absorbing member 59 Holding material 76 Magnetic body 77 Coil spring 80 Electromagnet 81 Iron core 82 Electromagnetic coil

Claims (4)

[Scope of utility model registration request] 1. In an optical switch in which a converter slides left and right on the inner surface of a switch body to open and close an optical path, a translucent body is arranged on the sliding surface of the converter, and a concave portion for shielding the optical path is provided in the vicinity thereof. Optical switch characterized by having a place. 2. The optical switch according to claim 1, wherein the recess of the conversion element has a tapered shape, and the inner peripheral surface thereof is formed into a rough surface. 3. The optical switch according to claim 1, wherein a light absorbing material is arranged in the recess of the converter. 4. A sliding piece with a spring interposed between the light transmissive body provided on the converter and the light transmissive body.
Optical switch described.