JPH0548175Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention is an optical channel selector (hereinafter referred to as
It's simply called a selector. ).

[Prior Art] A technique for selecting about 12 channels from one incident light beam is also described in, for example, Japanese Utility Model Application No. 63-69654.

Next, the structure of an optical channel selector according to the prior art will be explained with reference to FIG. In Fig. 5, 1 and 2 are electromagnets, 3 and 4 are magnets, 5 is a slide mechanism, 26
is a holder, 7 is a parallelogram prism, 18 is a prism, 19 is an output end, and 31 is an input end.

In FIG. 5, a holder 26 is attached to the slide mechanism 5, and a parallelogram prism 7 is attached to the upper part of the holder 26. A magnet 3 and a magnet 4 are arranged at both left and right ends of the slide mechanism 5, and an electromagnet 1 and an electromagnet 2 are arranged at the left and right ends of the slide mechanism 5. Electromagnet 1
When energized, the electromagnet 1 attracts the magnet 3 and moves the slide mechanism 5 toward the electromagnet 1, and when the electromagnet 2 is excited, the electromagnet 2 attracts the magnet 4 and moves the slide mechanism 5 toward the electromagnet 2.

FIG. 5 is a state diagram in which the electromagnet 2 is excited and the slide mechanism 5 is moved to the electromagnet 2 side, and the input end 3
The incident light from the parallelogram prism 7 passes through the prism 18 and is extracted from the output end 19.

Next, a change diagram of FIG. 5 is shown in FIG. 6. Figure 6 shows the electromagnet 1 being excited and the slide mechanism 5 being moved by the electromagnet 1.
It has been moved to the side. Input terminal 31 in Fig. 6
Since the incident light from the parallelogram prism 7 and the prism 18 travel independently, it travels straight.

[Problems to be solved by the invention] In order to increase the number of channels of the selector shown in Figures 5 and 6, it is necessary to arrange multiple horizontally moving drive mechanisms such as slide mechanisms and electromagnets in parallel. As the number increases, the optical path length from the input end to the output end also becomes longer.

This idea installs a parallelogram prism wide enough to vertically move the optical path of a slide mechanism that moves horizontally in two stages corresponding to each channel, and changes the optical path of the incident light from the input end 31. The purpose of the present invention is to provide a selector capable of selecting about 16 channels of one incident light by providing vertical switching mechanisms in two stages, upper and lower, so that each horizontally moving slide mechanism can take out two channels.

[Means for Solving the Problem] In order to solve this problem, this invention includes a slide mechanism 5 that moves to a first position and a second position in the horizontal direction with respect to the incident light from the input end 31; It is installed on the slide mechanism 5, and when the slide mechanism 5 is in the first position, the incident light from the input end 31 is passed through regardless, and when the slide mechanism 5 is in the second position, the incident light from the input end 31 is passed through. a parallelogram prism 7 that moves the optical path of the parallelogram to the upper stage in the vertical direction, and a slide that moves to a third position and a fourth position in the horizontal direction with respect to the incident light from the input end 31 that has passed through the parallelogram prism 7. Mechanism 15 and slide mechanism 15
and the slide mechanism 5 is in the first position,
When the slide mechanism 15 is in the fourth position, the light path of the incident light from the input end 31 is moved in the horizontal direction at the lower stage and passed through the slide mechanism 5.
is in the second position and the slide mechanism 15 is in the fourth position, the incident light from the input end 31 is moved horizontally in the optical path of the incident light in the upper stage, and the slide mechanism 15 is in the third position. When the parallelogram prism 17 is in the position, the incident light from the input end 31 passes through regardless, and the lower stage of the parallelogram prism 17 when the slide mechanism 5 is in the first position and the slide mechanism 15 is in the fourth position. a prism 18 disposed in the path of the incident light from the input end 31 that has passed through;
The slide mechanism 5 passes through the parallelogram prism 7 in the second position, and the slide mechanism 15 is arranged in the path of the incident light from the input end 31 passing through the upper stage of the parallelogram prism 17 in the fourth position. prism 2
0.

[Operation] Next, the configuration of the selector according to this invention will be explained with reference to FIG. 15 in Fig. 1 is a slide mechanism;
6 and 16 are holders, 17 is a parallelogram prism,
11 and 12 are electromagnets, 13 and 14 are magnets, 20 is a prism, and the rest are the same as in FIG. 5.

The difference between FIG. 1 and FIG. 5 is that in FIG. 5, the incident light from the input end 31 is moved horizontally, whereas in FIG. This is the point to move in the vertical direction.

In FIG. 1, the holder 6 is attached to the swirad mechanism 5, and the upper part of the holder 6 has a parallelogram prism 7.
Attach. A magnet 3 and a magnet 4 are installed at both left and right ends of the slide mechanism 5, and an electromagnet 1 and an electromagnet 2 are installed at the left and right sides of the slide mechanism 5.

When the electromagnet 1 is excited, the electromagnet 1 attracts the magnet 3 and moves the slide mechanism 5 toward the electromagnet 1,
When the electromagnet 2 is excited, the electromagnet 2 attracts the magnet 4 and moves the slide mechanism 5 toward the electromagnet 2 side.

The electromagnet 1 side is the first position, and the electromagnet 2 side is the second position.

Next, the holder 16 is attached to the slide mechanism 15, and a parallelogram prism 1 is attached to the upper part of the holder 16.
Attach 7. A magnet 13 and a magnet 14 are installed at both left and right ends of the slide mechanism 15, and an electromagnet 11 and an electromagnet 12 are installed at the left and right ends of the slide mechanism 15.

When the electromagnet 11 is excited, the electromagnet 11 becomes the magnet 1
3 is attracted to move the slide mechanism 15 toward the electromagnet 11 side, and when the electromagnet 12 is excited, the electromagnet 12
attracts the magnet 14 and moves the slide mechanism 15 toward the electromagnet 12.

The electromagnet 11 side is the third position, and the electromagnet 12 side is the fourth position.

FIG. 1 shows that the electromagnet 1 is excited and the slide mechanism 5 is
is moved to the electromagnet 1 side, and the electromagnet 12 is moved to the electromagnet 1 side.
is excited and the slide mechanism 15 is moved toward the electromagnet 12 side. When the slide mechanism 15 is in the fourth position, the parallelogram prism 17 moves the incident light from the input end 31 in the horizontal direction.

Next, a right side view of FIG. 1 is shown in FIG. 2. Second
The figure shows a state in which the incident light from the input end 31 passes through the lower stage of the parallelogram prism 17. In FIG. 2, the incident light from the input end 31 passes from the parallelogram prism 17 to the prism 18 and is extracted from the output end 19 in FIG.

Next, a diagram of changes in FIG. 1 is shown in FIG. 3. FIG. 3 is a state diagram in which the electromagnet 2 is excited and the slide mechanism 5 is moved to the electromagnet 2 side, and the electromagnet 12 is also excited and the slide mechanism 15 is moved to the electromagnet 12 side.

Next, FIG. 4 shows a right side view of FIG. 3. Fourth
In the figure, the incident light from the input end 31 is moved to the upper stage by the parallelogram prism 7, and the parallelogram prism 1
7 is a state diagram after passing through the upper stage. In Figure 4,
The incident light from the input end 31 passes through the parallelogram prism 1
7, passes through the prism 20 and reaches the output end 21 in FIG.
taken from.

As shown in FIGS. 1 to 4, by moving the slide mechanism 15 to the fourth position, and moving the slide mechanism 5 to the second position and the second position, the parallelogram prism 7 receives an input signal. The incident light from the end 31 is switched to two stages, upper and lower, and two outputs are taken out from the parallelogram prism 17.

Although not shown, by moving the slide mechanism 15 to the third position and moving the slide mechanism 5 to the first and second positions, two One output can be extracted.

That is, in FIG. 1, by moving the slide mechanism 5 to the first position and the second position, and moving the slide mechanism 15 to the third position and the fourth position,
Four outputs can be taken out.

In FIGS. 1 and 3, one set of electromagnets 11, 1
2, magnets 13, 14, slide mechanism 15, holder 16, parallelogram prism 17, prism 18,
20, output ends 19 and 21 are combined,
By arranging multiple channels in parallel as necessary, multiple channels can be taken out.

Further, the parallelogram prism 17 may be stacked in two layers, upper and lower, or the prisms 18 and 20 may be integrated into the upper and lower parts.

[Effects of the invention] According to this invention, outputs for two channels can be selected with one slide mechanism that moves in the horizontal direction with respect to the incident light from the input end. Also,
Since the optical path length can be shortened, the insertion loss of the switch can be reduced, and data reproducibility at the time of switching can be improved.

[Brief explanation of the drawing]

Figure 1 is a configuration diagram of the optical channel selector according to this invention, Figure 2 is a right side view of Figure 1, Figure 3 is a variation of Figure 1, Figure 4 is a right side view of Figure 3, and Figure 4 is a right side view of Figure 3. FIG. 5 is a configuration diagram of an optical channel selector according to the prior art, and FIG. 6 is a diagram showing a variation of FIG. 5. 1... Electromagnet, 2... Electromagnet, 3... Magnet, 4
... Magnet, 5 ... Slide mechanism, 6 ... Holder,
7... Parallelogram prism, 11... Electromagnet, 1
2... Electromagnet, 13... Magnet, 14... Magnet, 1
5...Slide mechanism, 16...Holder, 17...
Parallelogram prism, 18... Prism, 19...
...output end, 20...prism, 21...output end,
31...Input end.

Claims (1)

[Claims for utility model registration] The first horizontal direction with respect to the incident light from the input end 31
a first slide mechanism 5 that moves between a position and a second position; and a first slide mechanism 5 that is installed on the first slide mechanism 5 and that receives incident light from the input end 31 when the first slide mechanism 5 is in the first position. a first parallelogram prism 7 that allows the light to pass through independently and moves the optical path of the incident light from the input end 31 to the upper stage in the vertical direction when the first slide mechanism 5 is in the second position; A second slide mechanism 15 that moves to a third position and a fourth position in the horizontal direction with respect to the incident light from the input end 31 that has passed through the parallelogram prism 7
is installed on the second slide mechanism 15, and when the first slide mechanism 5 is in the first position and the second slide mechanism 15 is in the fourth position, the incident light from the input end 31 is directed to the lower stage. When the first slide mechanism 5 is in the second position and the second slide mechanism 15 is in the fourth position, the optical path of the incident light is moved in the horizontal direction to pass through, and when the first slide mechanism 5 is in the second position and the second slide mechanism 15 is in the fourth position, the incident light is transmitted from the input end 31. A second parallelogram that allows light to pass by moving the optical path of the incident light in the upper stage in the horizontal direction, and allows the incident light from the input end 31 to pass regardless when the second slide mechanism 15 is in the third position. shaped prism 17 and an input end 31 passing through the lower stage of the second parallelogram prism 17 with the first sliding mechanism 5 in the first position and the second sliding mechanism 15 in the fourth position.
a first prism 18 disposed in the path of incident light from the first prism 18, the first sliding mechanism 5 passing through the first parallelogram prism 7 in the second position, and the second sliding mechanism 15 passing through the fourth parallelogram prism 7; and a second prism 20 disposed in the path of the incident light from the input end 31 that has passed through the upper stage of the second parallelogram prism 17 at the position.