JP3443249B2 - Optical coupling device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical coupling device with an actuator used as a contactless switch.

[0002]

2. Description of the Related Art In recent years, as a contactless switch replacing a mechanical micro switch, a transmission type optical coupling device with an actuator has been adopted especially for devices which require high reliability, high speed and miniaturization. The transmission type optical coupling device with an actuator of this type is configured to output an on / off signal by blocking or forming an optical path from the light emitting element to the light receiving element due to movement of the actuator by an external force.

As a conventional transmission type optical coupling device with an actuator, there are generally one in which the actuator goes straight in a direction orthogonal to the optical path and one in which the actuator rotates around an axis parallel to the optical path.

In the former case, as disclosed in Japanese Patent Publication No. 4-38430 and Japanese Patent Publication No. 4-38431, the light emitting element 1 and the light receiving element 2 which are arranged opposite to each other as shown in FIGS. The case body 6 includes a push button 3 that is an actuator that moves in the vertical direction, a movable segment 4, and a coil spring 5 that biases the movable segment 4 upward.
Some are housed in an outer case 6 composed of a and a case cover 6b. Then, when an external force is applied to the push button 3, the push button 3 and the movable piece 4 move downward, and at this time, the movable piece 4 blocks the optical path X from the light emitting element 1 to the light receiving element 2, and the external force is applied to the push button 3. When it is no longer
The push button 3 and the movable segment 4 are moved upward by the biasing force of the coil spring 5 to return to the original position, and the optical path X is formed, so that an on / off signal is output.

Further, in the latter case, as shown in FIG. 21, a light emitting element 10 and a light receiving element 11 are arranged so as to face each other, and an outer case 1 is formed.
2, a movable piece 13 which is an actuator is rotatably supported on the outer case 12 and is provided with a return winding spring 14 for automatically returning the movable piece 13 after rotation. is there. When an external force is applied to the operation portion 13b of the movable piece 13, the movable piece 1
The light shielding portion 13c of No. 3 swings around the horizontal axis 13a, and at this time, an optical path from the light emitting element 10 to the light receiving element 11 is formed,
When no external force is applied to the operation portion 13b, the movable segment 13 is returned to its original position by the urging force of the return winding spring 14, and the light shielding portion 13c blocks the optical path to output an on / off signal. Has become.

[0006]

In the conventional optical coupling device, since the actuators and the springs 5 and 14 are separately provided in the outer cases 6 and 12, the number of parts is large and the assembling work thereof is complicated. Therefore, the cost was high.

Further, since the actuator operates either in a straight line or in a rotation, the direction of the external force capable of operating the actuator is limited, the application range of the device is limited, and the versatility is poor.

Further, in the former optical coupling device, the case body 6a is engaged with the case cover 6b to form the exterior case 6, and each member is housed in the exterior case 6 so that dust, dust, and ambient light from the outside are incident on the optical path. Although it does not intrude on the X, there is a problem that the case cover 6b is required, so that the number of parts is increased and the structure is complicated. Further, in the latter optical coupling device, there is a possibility that dust and dirt may adhere to the light emitting / receiving slits 10a and 11a formed in the outer case 12 to interrupt the optical path.

In view of the above, the present invention is capable of reducing the number of parts and simplifying the manufacturing process, easily preventing the intrusion of foreign matter such as dust and dirt, and providing a versatile optical coupling device. To aim.

[0010]

SUMMARY OF THE INVENTION An object of the present invention is to provide an outer case for accommodating a light emitting element and a light receiving element, a posture for restricting the light incident from the light emitting element to the light receiving element, and a light incident. A movable body elastically deformable between the posture and the outer case, a light transmission chamber for transmitting light is provided, and the movable body covers the periphery of the light transmission chamber to prevent dust. It is formed integrally with the outer case. This is applicable to both a transmissive type in which the light from the light emitting element is directly incident on the light receiving element, and a reflective type in which the light from the light emitting element is reflected by the movable body and is incident on the light receiving element. Further, the movable body does not need to have elasticity as a whole, and it is sufficient that a part thereof has elasticity.

In the above means for solving problems, when an external force is applied to the movable body, the movable body is elastically deformed and the posture is switched, so that the incidence of light on the light receiving element is restricted or allowed. When the movable body receives no external force, the movable body returns to its original state due to its elasticity. As a result, the amount of light received by the light receiving element changes, and an on / off signal is output.

In such an optical coupling device, when the outer case and the movable body are integrally molded with different materials, an appropriate material can be selected according to the function of each member. When the movable body and the movable body are integrally molded with the same material having elasticity, the outer case and the movable body can be manufactured by molding once, and the manufacturing process can be simplified.

Further, when the movable body is detachably attached to the outer case, when the shape of the movable body is changed according to the application, it is not necessary to change the entire apparatus and only the design change of the movable body is required. .

Further, the movable body is composed of an operating portion to which an external force is applied and a resilient supporting portion for supporting the operating portion with respect to the outer case, so that the operating portion can be moved in a plurality of directions. Plural directions are plural directions such as vertical direction, horizontal direction such as left-right direction and front-back direction, and rotation direction around the axis, etc., and the operation unit does not operate even when external force is applied from not only one direction but also multiple directions. It moves so that the movable body operates.

Further, two or more sets of light emitting elements and light receiving elements having a plurality of light receiving regions are provided, and the optical paths from the light emitting elements to the light receiving elements in each set are in mutually different directions. This makes it possible to detect the moving direction of the operating portion, that is, the direction in which the external force is applied, from the output signal of the light receiving area accompanying the light incident on the light receiving area of each light receiving element.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

(First Embodiment) FIG. 1 is a longitudinal sectional view of an optical coupling device according to a first embodiment of the present invention, FIG. 2 is a lateral sectional view thereof, FIG. 3 is a perspective view thereof, and FIG. It is a longitudinal cross-sectional view when the movable body is elastically deformed.

With reference to these figures, the optical coupling device of the present embodiment is provided with an outer case 22 for accommodating a light emitting element 20 made of an LED (light emitting diode) and a light receiving element 21 made of a photodiode, which are arranged facing each other. Posture Y that restricts the incidence of light from the light emitting element 20 to the light receiving element 21 (see FIG.
(See FIG. 1) and a posture Z (see FIG. 1) that allows the incidence of light, which is an actuator that is elastically deformable.
3 is a transmissive photo interrupter.
The movable body 23 is integrally molded with the outer case 22 by two-color molding, double molding or insert molding.

The outer case 22 is formed of a light-shielding epoxy resin or the like into a substantially cylindrical shape, and emits light with a light transmission chamber (central space) S for transmitting light being sandwiched within its thickness. The element housing portion 30 and the light receiving element housing portion 31 are formed so as to face each other. Further, in the outer case 22, a light emitting side slit 30a that narrows the light from the light emitting element 20 is formed between the light emitting element housing portion 30 and the light transmission chamber S, and the light receiving element housing portion 31 and the light transmission chamber S are separated from each other. A light-receiving side slit 31a that narrows the light incident on the light-receiving element 21 is formed therebetween. It should be noted that both storage portions 30, 31 and both slits 30a, 31
The lower part of each of a is open.

The light emitting element housing 30 and the light receiving element housing 31 are respectively provided in the light emitting element 20 and the light receiving element 2.
1 is inserted and fixed by adhesion with an adhesive or slight deformation of the outer case 22 due to heat.

The movable body 23 is a resin containing a rubber material,
A push button 40 that is an operation unit that can be moved in the vertical direction (the direction of arrow A in FIG. 1) by an external force by a resin having elasticity and light shielding properties such as foamed resin, polyester elastomer, synthetic rubber, or silicone rubber, and an exterior. Case 22
Is located in the optical transmission room S of the
A flat plate-shaped light-shielding portion 41 that goes in and out of the housing and a push-button 40 and an umbrella-shaped support portion 42 that supports the light-shielding portion 41 with respect to the exterior case 22 are integrally molded. Then, the support portion 42 of the movable body 23 is integrally fixed to the upper surface of the outer case 22, and the movable body 23 is fixed to the outer case 22.
The upper part of the optical transmission chamber S is covered to prevent dust and dirt from entering the optical path X.

In order for the movable body 23 to be elastically deformed, at least the support portion 42 has elasticity, and the push button 40 and the light shielding portion 41 do not necessarily have to be formed of a resin having elasticity. Good. In addition, the thickness of the support portion 42 may be changed, or the support portion 42 may be provided with irregularities or slits to change the elastic force, whereby the force required to operate the movable body 23 can be further changed.

The transmissive photointerrupter thus constructed is mounted on the circuit board K, and the lead frames 20a and 21a of the light emitting element 20 and the light receiving element 21 are connected to the wiring pattern of the circuit board K by soldering. ing. Therefore, the lower opening of the outer case 22 is covered with the circuit board K to prevent dust and dirt from entering the optical path X in the optical transmission chamber S from the lower opening.

In the above structure, when an external force is applied to the push button 40, the support portion 42 elastically deforms and the push button 40 is pressed.
And the light blocking portion 41 moves downward, and the light blocking portion 41 blocks the optical path X. That is, the movable body 23 changes from the posture Z to the posture Y.

On the other hand, when no external force is applied to the push button 40, the support portion 42 returns to its original state due to its elasticity, and the push button 40 and the light shielding portion 41 move upward and return to their original positions. The light path X is formed by avoiding the light blocking portion 41 from the light path X. That is, the movable body 23 is in the posture Y
The posture becomes from Z. By changing the attitude of the movable body 23 in this way, the amount of light received by the light receiving element 21 changes, and an on / off signal is output.

As described above, in the optical coupling device of this embodiment, the outer case 22 and the elastically deformable movable body 23, which is an actuator, are integrally formed.
The number of parts can be reduced, the manufacturing process can be simplified, and the cost can be reduced as compared with the conventional case in which the actuator and the spring are separately provided in the outer case.

Moreover, since the movable body 23 covers the upper part of the light transmission chamber S of the outer case 22, it is possible to reliably prevent foreign matter such as dust and dirt from entering the optical path X with a simple structure. it can.

(Second Embodiment) FIG. 5 is a vertical sectional view of an optical coupling device according to a second embodiment. As shown in the figure, in the optical coupling device of the second embodiment, the outer case 22 and the movable body 23
And are integrally molded from the same material. As this material, a resin containing a rubber material, a foaming resin, a polyester elastomer, a synthetic rubber, a silicone rubber, or the like having elasticity and light shielding properties is used.

As a result, the outer case 22 and the movable body 23 can be manufactured by a single molding process using a single material, so that the manufacturing process can be simplified and the cost can be reduced as compared with the first embodiment. Can be planned. The other configurations and operations are the same as those in the first embodiment, and members having the same functions as those in the first embodiment are designated by the same reference numerals.

(Third Embodiment) FIG. 6 is a longitudinal sectional view of an optical coupling device according to a third embodiment, and FIG. 7 is a perspective view of the same.
As shown in the figure, in the optical coupling device of the third embodiment, a pair of hooks 50 a and 50 b for fixing the light emitting element 20 and the light receiving element 21 are integrally molded in the outer case 22.

The hooks 50a and 50b are the lower surface of the package of the light emitting device 20 housed in the light emitting device housing portion 30,
The light receiving elements 21 housed in the light receiving element housings 31 project from the inner surfaces of the side walls 30b and 31b of the two housings 30 and 31 toward the optical transmission chamber S so as to contact the lower surfaces of the packages, respectively. The light emitting element 20 and the light receiving element 21 are formed into inclined surfaces so that they can be easily inserted into the housings 30 and 31. In addition, in FIG.
Reference numeral 51b is a die-cutting hole formed to mold the hooks 50a and 50b.

The light emitting element 20 and the light receiving element 21
When the hooks are inserted into the respective storage parts 30 and 31, the hook 50
When a, 50b and the side walls 30b, 31b are pushed outward and the light emitting element 20 and the light receiving element 21 reach a predetermined storage position, the hooks 50a, 50b and the side walls 30b, 31b are restored by their own elastic force. Then, the light emitting element 20 and the light receiving element 21 are brought into contact with the respective package lower surfaces of the light emitting element 20 and the light receiving element 21,
Are fixed to the respective storage sections 30 and 31.

In this way, the hook 50 is attached to the outer case 22.
By forming a and 50b, the light emitting element 20 and the light receiving element 21 can be fixed simply by inserting them into the respective housing portions 30 and 31, and the outer case 22 is slightly deformed by adhesion with an adhesive or heat. Such a troublesome process can be eliminated, and the manufacturing process can be further simplified. The other configurations and operations are the same as those in the second embodiment, and members having the same functions as those in the second embodiment are designated by the same reference numerals.

(Fourth Embodiment) FIG. 8 is a longitudinal sectional view of an optical coupling device according to a fourth embodiment, and FIG. 9 is a perspective view thereof.
As shown in the figure, in the optical coupling device of the fourth embodiment, the light emitting side slits formed between the light emitting element housing portion 30 and the optical transmission chamber S and between the light receiving element housing portion 31 and the optical transmission chamber S, respectively. The upper part of 60 and the light-receiving side slit 61 is opened, and the lower part is shielded.

As a result, when the light blocking portion 41 of the movable body 23 moves downward and the lower end of the light blocking portion 41 reaches the same height position as the lower ends of the slits 60 and 61, the optical path X can be completely blocked. Therefore, it is possible to provide a highly accurate optical coupling device with few malfunctions. The other configurations and operations are the same as those in the second embodiment, and members having the same functions as those in the second embodiment are designated by the same reference numerals.

(Fifth Embodiment) FIG. 10 is an exploded vertical sectional view of an optical coupling device of a fifth embodiment, and FIG. 11 is a perspective view thereof. As shown in the figure, in the optical coupling device of the fifth embodiment, a movable body 71 having a cross shape in a side view, which is an actuator, is detachably attached to an outer case 70 having a concave shape in a side view.

The outer case 70 is formed by integrally molding a light emitting element housing portion 72, a light receiving element housing portion 73, and a connecting portion 74 for connecting them so as to oppose each other, using a light-shielding epoxy resin or the like. . In addition, in FIGS.
73a is a light emitting side slit and a light receiving side slit,
Both storage parts 72, 73, connecting part 74 and both slits 7
The lower portions of both 2a and 73a are open.

The movable body 71 is a resin containing a rubber material,
With a resin having elasticity and light-shielding property such as foamed resin, polyester elastomer, synthetic rubber, or silicone rubber, a rod-shaped operation portion 80 that can be moved in the vertical direction (B direction in FIG. 11) by an external force, and the outer case 70. Optical transmission room S
And a light-shielding portion 81 in the form of a flat plate which is arranged in the same direction and goes in and out of the optical path X in conjunction with the operation portion 80, and the operation portion 80 and the light-shielding portion 81.
And a rod-shaped support portion 82 for supporting the outer casing 70 with respect to the outer case 70 are integrally molded.

Further, on both lower surfaces of both ends of the supporting portion 82, there are formed protrusions 84 which are press-fitted into a total of four fitting holes 83 formed in two upper surfaces of the accommodating portions 72 and 73. Accordingly, the movable body 71 is detachably attached to the outer case 70.

With this structure, for example, when the shape of the operating portion 80 is changed according to the application, it is not necessary to change the entire device, only the design change of the movable body 71 is required. The mold can be simplified and the cost can be reduced.

In order for the movable body 71 to elastically deform, at least the support portion 82 has elasticity, and the operation portion 80 and the light shielding portion 81 do not necessarily have to be formed of a resin having elasticity. Good. Further, the thickness of the support portion 82 may be changed, or the support portion 82 may be provided with irregularities or slits to change the elastic force of the support portion 82, which also causes a force necessary to operate the movable body 71. Can be changed. Further, in the present embodiment, the outer case 70
Although the case where the movable body 71 and the movable body 71 are separate bodies has been described, the outer case 70 and the movable body 71 may be integrally molded by two-color molding, two-time molding, or insert molding. Similar to the form, the manufacturing process can be simplified. Other configurations and operations are the same as those in the first embodiment, and members having the same functions as those in the first embodiment are designated by the same reference numerals.

(Sixth Embodiment) FIG. 12 is a perspective view of a movable body of an optical coupling device of the sixth embodiment, and FIG. 13 is a longitudinal sectional view of the movable body. As shown in the figure, in the optical coupling device according to the sixth embodiment, the operating portion 80 of the movable body 71 is elastically deformed by the supporting portion 82, so that the vertical direction (B direction in FIG. 13) and the horizontal direction (C direction in FIG. 13). ), And is rotatable around the support portion 82 (direction D in FIG. 13).

Further, the light shielding portion 81 is formed with a notch 85 from its center to its lower portion. And the operation unit 8
The optical path X is set so as to pass through the center of the notch 85 when no external force is applied to 0. Therefore, even if the support portion 82 moves in any of B, C, and D directions, the light shielding portion 8
1 blocks the optical path X. The operation unit 80 can also rotate in a direction orthogonal to the D direction,
The optical path X remains formed even when rotated.

In this way, the operating portion 80 of the movable body 71 can be moved in a plurality of directions, and the external force can be applied not only from one direction but also from a plurality of directions (B, C, D directions in FIG. 13). Even if it is applied, the operation unit 80 moves and the movable body 71 operates, so that the degree of freedom in arranging the device in the device is increased, the application range of the device is expanded, and the versatility is improved to improve the commercial value. can do. The other configurations and operations are the same as those in the fifth embodiment, and the members having the same functions as those in the fifth embodiment are designated by the same reference numerals.

(Seventh Embodiment) FIG. 14 is a perspective view of an optical coupling device of a seventh embodiment, and FIG. 15 shows the incidence of light on the light receiving region of the light receiving element due to the operation of the movable body. When the movable body is not operating, (b) is when the movable body is operating. As shown in the figure, in the optical coupling device of the seventh embodiment, two sets of the light-emitting element 20 and the light-receiving element 21 which are arranged to face each other are housed in an outer case 90 having a cross shape in plan view.
The optical paths X in each set are orthogonal to each other, and the light receiving element 21 in each set has a pair of light receiving regions 21a and 21b arranged in the horizontal direction.

The exterior case 90 is made of a light-shielding epoxy resin or the like and has two light-emission-side storage portions 91a and 91b.
The two light-receiving side storage portions 92a and 92b and the connecting portion 93 that connects the light-receiving side storage portions 92a and 92b so as to face each other are integrally molded. The movable body 94 is detachably fitted to the outer case 90, and the light shielding portion 95 of the movable body 94 is
It is formed in a rod shape and is arranged at a position where the optical paths X in the optical transmission chamber S intersect.

Then, the operating portion 8 of the movable body 94 is applied by an external force.
For example, when 0 rotates in the E direction in FIG. 14, the light shielding portion 95 rotates in the F direction opposite to the E direction, and thus the light is incident on both light receiving regions 21a and 21b in one light receiving element 21. The restricted state (the state shown in FIG. 15A) is changed to the state in which light is allowed to enter only one light receiving region 21a (the state shown in FIG. 15B). At this time, it is possible to detect the moving direction of the operation unit 80 in two dimensions, that is, the direction E in which the external force is applied, based on the output signals of both the light receiving regions 21a and 21b. Other configurations and operations are the same as those in the fifth embodiment, and members having the same functions as those in the fifth embodiment are designated by the same reference numerals.

The present invention is not limited to the above embodiment, and it goes without saying that many modifications and changes can be made to the above embodiment within the scope of the present invention.

In the first to seventh embodiments, the movable body does not necessarily have to be formed of a material having elasticity, and can be elastically deformed by using, for example, metal or the like, and thinning or thinning a portion corresponding to the supporting portion. May be

In the first and second embodiments,
The push button may be movable in a plurality of directions (vertical movement, horizontal movement, and rotational movement) so that the movable body operates even when an external force is applied from a plurality of directions, and the applicable range of the device may be expanded.

Further, in the first and second embodiments, as shown in FIG. 16, the light from the light emitting element 20 is moved by the movable body 10.
The outer case 22 may be provided with the light emitting element 20, the light receiving element 21, and the movable body 100 so as to form the optical path X1 that is reflected by 0 and enters the light receiving element 21. That is,
The present invention is not limited to the transmission type optical coupling device, and may be applied to the reflection type optical coupling device.

Further, in the first embodiment, as shown in FIG. 17, two sets of the light emitting element 20 and the light receiving element 21 facing each other are provided so that their optical paths X are orthogonal to each other, and the push button is moved in two dimensions. The direction, that is, the direction in which the external force is applied may be detected.

Furthermore, in the seventh embodiment, the number of the light emitting elements and the number of the light receiving elements arranged opposite to each other is not limited to two, but may be three or more. Further, the optical paths in each set do not have to be orthogonal to each other, and may be displaced vertically, for example. The light receiving area of the light receiving element is not limited to two, and may be three or more.

[0054]

As is apparent from the above description, according to the present invention, since the outer case and the elastically deformable movable body which is the actuator are integrally formed, the actuator and the spring are separately provided in the outer case. The number of parts can be reduced, the manufacturing process can be simplified, and the cost can be reduced as compared with the conventional one provided in.

Moreover, since the movable body covers the periphery of the light transmission chamber provided in the outer case for dustproof, foreign matter such as dust and dirt can be prevented from entering the optical path with a simple structure and surely. can do.

Further, by integrally molding the outer case and the movable body with different materials, it is possible to select a proper material according to the function of each member, and the outer case and the movable body are elastic. When integrally molded with the same material having, the outer case and the movable body can be manufactured by molding once, and the manufacturing process can be simplified.

Further, when the movable body is detachably attached to the outer case, when the shape of the movable body is changed according to the application, it is not necessary to change the entire apparatus and only the design change of the movable body is required. It is possible to simplify the mold and reduce the cost.

When the operating portion of the movable body is movable in a plurality of directions, the operating portion moves and the movable body operates even when external force is applied not only from one direction but also from a plurality of directions.
The degree of freedom in arranging the device in the device is increased, the range of application of the device is expanded, the versatility is enhanced, and the commercial value can be improved.

Furthermore, if two or more sets of light-emitting elements and light-receiving elements are arranged so that their optical paths are in different directions, and each set of light-receiving elements has a plurality of light-receiving regions, the light-receiving elements receive light. It is possible to detect the moving direction of the operating portion, that is, the direction to which the external force is applied, from the output signal of the light receiving region due to the incidence of light on the region, and it is possible to improve the function of the device.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of an optical coupling device according to a first embodiment of the present invention.

[Fig. 2] Similarly, its cross-sectional view

FIG. 3 is a perspective view of the same.

FIG. 4 is a longitudinal sectional view when the movable body is also elastically deformed.

FIG. 5 is a vertical sectional view of an optical coupling device according to a second embodiment.

FIG. 6 is a vertical sectional view of an optical coupling device according to a third embodiment.

FIG. 7 is a perspective view of the same.

FIG. 8 is a vertical sectional view of an optical coupling device according to a fourth embodiment.

FIG. 9 is a perspective view of the same.

FIG. 10 is an exploded vertical sectional view of an optical coupling device according to a fifth embodiment.

FIG. 11 is a perspective view of the same.

FIG. 12 is a perspective view of a movable body of an optical coupling device according to a sixth embodiment.

FIG. 13 is a vertical cross-sectional view of the same light shielding portion.

FIG. 14 is a perspective view of an optical coupling device according to a seventh embodiment.

FIG. 15 is a diagram showing the incidence of light on the light receiving area of the light receiving element due to the operation of the movable body, (a) when the movable body is not operating, and (b) when the movable body is operating.

FIG. 16 is a cross-sectional view of an optical coupling device according to another embodiment.

FIG. 17 is a cross-sectional view of an optical coupling device according to another embodiment.

FIG. 18 is a vertical sectional view of an optical coupling device including a conventional actuator.

FIG. 19 is a front view of the same.

FIG. 20 is a bottom view of the same.

FIG. 21 is a perspective view of an optical coupling device including another conventional actuator.

[Explanation of symbols]

20 light emitting element 21 Light receiving element 21a, 21b Light receiving area 22 Exterior case 23 Movable body 40 Operation part 42 Support S optical transmission room X optical path

Claims (5)

(57) [Claims] 1. An outer case that houses a light emitting element and a light receiving element, and is elastically deformable between a posture that restricts the incidence of light from the light emitting element to the light receiving element and a posture that allows the incidence of the light. A movable body, a light transmission chamber for transmitting light is provided in the outer case, and the movable body is
The light transmission chamber is formed integrally with the outer case to cover the periphery of the light transmission chamber for dust prevention, and the movable body has an operation portion to which an external force is applied and elasticity for supporting the operation portion with respect to the outer case. The operation unit is movable in a plurality of directions, two or more sets of the light emitting element and the light receiving element are provided, and the optical paths from the light emitting element to the light receiving element in each set are different from each other. The light receiving element of each set has a plurality of light receiving regions. 2. The optical coupling device according to claim 1, wherein the outer case and the movable body are integrally molded of different materials. 3. The optical coupling device according to claim 1, wherein the outer case and the movable body are integrally molded of the same elastic material. 4. An outer case that houses the light emitting element and the light receiving element, and is elastically deformable between a posture that regulates the incidence of light from the light emitting element and a posture that allows the incidence of light. The movable body is detachably attached to the outer case, and the movable body has an operation section to which an external force is applied and elasticity for supporting the operation section with respect to the outer case. And a support portion having, the operation portion,
It is movable in a plurality of directions, two or more sets of the light emitting element and the light receiving element are provided, and the optical paths from the light emitting element to the light receiving element in each set are in different directions, and the light receiving elements of each set have a plurality of light receiving regions. An optical coupling device comprising: 5. The support portion is in the shape of an umbrella.
The optical coupling device according to any one of claims 1 to 4.