Optical connector device

Description: TECHNICAL FIELD [Detailed description of the invention]

【0001】

[Technical field to which the invention belongs]

The present invention relates to an optical fiber cord and a light receiving / receiving element, or an optical connector device for connecting optical fiber cords to each other in the field of optical communication between various devices in OA, FA, automobiles and the like.

【0002】

[Background technology]

As this type of optical connector, a ferrule portion that holds the optical fiber exposed portion at the end of the optical fiber cord and a connector housing that holds the coated end portion of the optical fiber cord in front of the ferrule portion are integrated. Yes (see Japanese Patent Application No. 2000-44351).

【0003】

In this optical connector, a stopper is inserted and arranged inside the connector housing from one side, and the stopper is engaged with the covering portion of the optical fiber cord in the connector housing to prevent the optical fiber cord from being pulled out. I try to keep it.

【0004】

[Problems to be Solved by the Invention]

However, in this optical connector, the stopper is prevented from coming off from the connector housing mainly by the force of engagement between the stopper and the coating portion of the optical fiber cord. It may fall off from the connector housing. In particular, there is a high risk that it will be installed in the engine room of an automobile for in-vehicle use.

【0005】

Therefore, an object of the present invention is to provide an optical connector device capable of preventing the stopper for retaining and holding the optical fiber cord from falling off.

【0006】

[Means for solving problems]

In order to solve the above problems, the invention according to claim 1 holds a first optical connector that holds an end of an optical fiber cord and another optical fiber cord or optical element that is optically coupled to the optical fiber cord. By connecting the first optical connector and the second optical connector, the optical fiber cord held by them is optically coupled to another optical fiber cord or optical element. In the first optical connector, a cord accommodating hole for inserting and accommodating the optical fiber cord along the axial direction is formed, and the cord is accommodated on one side. A substantially tubular housing portion having a mounting opening for communicating the hole to the outside and an insertion arrangement in the cord accommodating hole along the direction orthogonal to the insertion direction of the optical fiber cord through the mounting opening. The second optical connector is provided with a stopper that engages with the coating portion of the optical fiber cord in the cord accommodating hole to position and hold the optical fiber cord in the axial direction, and the second optical connector is the other optical fiber cord or the optical fiber cord. The outer fitting includes a holding portion for holding the optical element and an outer fitting tubular portion extending toward the tip end side of the holding portion so as to be externally fitted to the housing portion of the first optical connector. The tubular portion is extended until the entire circumferential direction or a part of the circumferential direction reaches the mounting opening in a connected state between the first optical connector and the second optical connector, and at least the mounting opening is extended. It is formed in a shape that covers a part of it.

【0007】

As described in claim 2, a push-in guide surface that sequentially expands outward toward the tip side is formed at the tip edge portion of the portion of the outer fitting tubular portion that covers the mounting opening. May be good.

【0008】

Further, as described in claim 3, a ferrule portion for inserting and holding the optical fiber exposed at the end of the optical fiber cord is integrally formed in the housing portion, and the first optical connector is formed in the holding portion. A ferrule introduction portion that guides the ferrule portion toward the other optical fiber cord or optical element held by the holding portion at the time of connection with the second optical connector may be integrally formed.

【0009】

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, the optical connector device of the embodiment according to the present invention will be described.

【0010】

As shown in FIGS. 1 to 5, this optical connector device holds a first optical connector 1 that holds an end portion of an optical fiber cord 90, and an optical element 95 that is optically coupled to the optical fiber cord 90. The second optical connector 40 is provided, and the optical fiber cord 90 and the optical element 95 are optically coupled by connecting the first optical connector 1 and the second optical connector 40.

【0011】

Here, in the optical fiber cord 90, the outer peripheral portion of the optical fiber 91 composed of the core and the clad is coated with the first coating portion 92, and the outer peripheral portion of the first coating portion 92 is coated with the second coating portion 93. The second coating portion 93 at the end of the optical fiber cord 90 is peeled off in advance over a predetermined length to expose the first coating portion 92 before being held by the first optical connector 1. At the same time, the first covering portion 92 at the tip of the peeled portion is peeled off over a predetermined length to expose the optical fiber 91 (see FIGS. 1 and 2).

【0012】

The first optical connector 1 includes a housing portion 2 and a stopper 20 inserted and arranged in the housing portion 2.

【0013】

As shown in FIGS. 1 to 6, the housing portion 2 is formed in a substantially tubular member, and a cord accommodating hole portion for inserting and accommodating the optical fiber cord 90 along the axial direction therein. 3 is formed, and a mounting opening 10 for communicating the cord accommodating hole 3 to the outside is formed on one side thereof.

【0014】

Specifically, the housing portion 2 is formed of resin or the like, and a cord accommodating hole portion 3 is formed in a substantially square tubular housing portion 2 along the axial direction thereof. Further, at the tip of the housing portion 2, a substantially circular tubular ferrule portion 4 for holding the optical fiber 91 exposed at the end of the optical fiber cord 90 so as to project toward the tip is integrally formed. A ferrule accommodating hole 4a is formed in the ferrule portion 4.

【0015】

The cord accommodating hole 3 has a configuration in which an introduction hole 3a and a cord holding hole 3b, which are sequentially finished with smaller inner diameters from the rear end side to the tip side of the housing portion 2, are connected in a straight line. The ferrule housing hole 4a is formed on the front extension of the cord holding hole 3b. The introduction hole 3a is formed to have an inner diameter that allows the coating portion of the second coating portion 93 of the optical fiber cord 90 to be inserted, and the cord holding hole portion 3b inserts the coating portion of the first coating portion 92 of the optical fiber cord 90. The inner diameter of the ferrule accommodating hole 4a is formed to be a possible inner diameter, and the inner diameter of the ferrule accommodating hole 4a is formed to be an inner diameter through which the optical fiber 91 can be inserted.

【0016】

Then, when the end portion of the optical fiber cord 90 is inserted and arranged in the cord accommodating hole 3 from the rear end side of the cord accommodating hole 3, the coated portion of the second covering portion 93 of the optical fiber cord 90 becomes the introduction hole portion 3a. The coated portion of the first covering portion 92 of the optical fiber cord 90 is accommodated and arranged in the cord holding hole portion 3b, and the optical fiber 91 is accommodated and arranged in the ferrule accommodating hole portion 4a. It is configured as follows. At this time, the optical fiber 91 is accommodated and held in a state of being positioned in the radial direction by being accommodated and arranged in the ferrule accommodating hole 4a. Then, the end face of the optical fiber 91 is mirror-treated at the tip of the ferrule portion 4, and the ferrule portion 4 is inserted into the ferrule introduction portion 43 on the second optical connector side, which will be described later, so that the end face of the optical fiber 91 is optical. It is configured to be arranged so as to face the light emitting surface or the light receiving surface of the element 95.

【0017】

Further, the mounting opening 10 is formed at the bottom of the housing portion 2 which is one side of the portion corresponding to the cord holding hole portion 3b.

【0018】

The mounting opening 10 is formed into a substantially rectangular opening shape, and a pair of left and right holding grooves 3c are used as holding portions for stoppers 20 before and after the inner side wall portion of the cord holding hole portion 3b corresponding to the mounting opening 10. (See Figure 6) is formed. Then, by sliding and holding both outer edges of the pair of holding plate portions 21 of the stopper 20, which will be described later, into each holding groove 3c, the pair of holding plate portions 21 are inserted in the insertion direction of the optical fiber cord 90. It is formed so that it can be held in a posture orthogonal to.

【0019】

As shown in FIGS. 1 to 5, the stopper 20 is inserted and arranged in the cord accommodating hole 3 through the mounting opening 10 along a direction orthogonal to the insertion direction of the optical fiber cord 90, and the cord is inserted and arranged. The optical fiber cord 90 is formed so as to be able to be positioned and held in the axial direction by engaging with the first covering portion 92 of the optical fiber cord 90 in the accommodating hole portion 3.

【0020】

Specifically, the stopper 20 is formed by pressing a thin plate-like member such as metal, and a pair of holding plate portions 21 which are substantially square and have a predetermined thickness dimension are arranged in parallel via a connecting piece 24. It is formed in a substantially U-shaped member in a side view that is connected and supported in a state.

【0021】

The holding plate portion 21 is formed in a substantially square plate shape, and a substantially U-shaped positioning slit 22 (see FIG. 1) that opens to the tip end side of the holding plate portion 21 is formed in the central portion in the width direction thereof. Being done.

【0022】

Each holding plate portion 21 is inserted into the cord holding hole portion 3b through the mounting opening 10 so that both outer edge portions thereof are slidly inserted into the holding groove 3c formed in the cord holding hole portion 3b. As a result, it is configured to be held in the cord holding hole 3b in a posture orthogonal to the insertion direction of the optical fiber cord 90.

【0023】

Further, in the state where the stopper 20 is inserted and arranged in the cord holding hole 3b in this way, the connecting piece 24 comes into contact with the lower surface of the side wall of the cord holding hole 3b between the front and rear holding grooves 3c, and the stopper 20 Restrict movement in the insertion direction. At this time, the connecting piece 24 is arranged on the extension of the bottom surface of the housing portion 2 and at a position where the mounting opening 10 is closed.

【0024】

Further, each positioning slit 22 is formed to have a width dimension smaller than the diameter dimension of the optical fiber cord 90 to be positioned and larger than the diameter dimension of the optical fiber 91. In the present embodiment, the second covering portion 93 of the optical fiber cord 90 is peeled off by the stopper 20, and the exposed portion of the first covering portion 92 is positioned and held. Therefore, as shown in FIG. 7, the positioning is determined. The width dimension of the slit 22 is formed to be smaller than the diameter dimension of the exposed portion of the first covering portion 92 and larger than the diameter dimension of the optical fiber 91.

【0025】

At the open ends of the side edge portions 22a of the positioning slit 22, blade portions 23 are formed at the corners of the side edge portions 22a of the positioning slit 22 and the tip edge portion 21a of the holding plate portion 21, respectively. Each blade portion 23 is formed by the side surface of the side edge portion 22a of the positioning slit 22 parallel to the insertion direction of the holding plate portion 21 and the tip surface of the tip edge portion 21a of the holding plate portion 21 being orthogonal to each other. Orthogonal. Then, as shown in FIG. 7, the stopper 20 is inserted halfway through the cord holding hole portion 3b through the mounting opening 10, and each blade portion 23 is brought into contact with the first covering portion 92 of the optical fiber cord 90. When the stopper 20 is pushed further in from the state, as shown in FIG. 8, each blade portion 23 scrapes the first covering portion 92 like a flat chisel, and the scraped portion of each positioning slit 22 Engage so that both side edges 22a enter.

【0026】

In the upper part of the housing portion 2 of the first optical connector 1 in the present embodiment, an engagement extension piece 15 is extended from the rear end portion toward the tip end side in a cantilever support shape, and the engagement extension piece 15 is extended. An engaging convex portion 16 that can be engaged with the engaged piece 55 on the second optical connector 40 side is projected from the tip of the extending piece 15. Then, when connecting the first optical connector 1 and the second optical connector 40, the inclined surface 16a of the engaging convex portion 16 is pressed against the engaged piece 55 to push the engaging extending piece 15 downward. The engaging convex portion 16 is moved downward by elastic deformation, so that the engaging convex portion 16 gets over the engaged piece 55 and engages the engaging convex portion 16 and the engaged piece 55. The configuration is such that the connection state of the amphibious connectors 1,40 is maintained. Further, an operation unit 17 is formed on the upper part of the engagement extension piece 15, and when the connection state of the bioptical connectors 1,40 is released, the operation unit 17 is pushed downward to push it downward. The engagement convex portion 16 on the first optical connector 1 side and the engaged piece 55 on the second optical connector 40 side can be disengaged.

【0027】

The procedure for holding the optical fiber cord 90 in the first optical connector 1 configured in this way will be described.

【0028】

First, the end of the optical fiber cord 90 from which the first covering portion 92 and the second covering portion 93 have been peeled off is inserted into the accommodating hole 3 of the housing portion 2 from the rear side, and the exposed portion of the optical fiber 91 is accommodated in the ferrule. The exposed portion of the first coating portion 92 is arranged in the cord holding hole portion 3b, and the end portion of the second coating portion 93 is arranged in the introduction hole portion 3a in the hole portion 4a (see FIG. 2). Next, in this state, the stopper 20 is pushed through the mounting opening 10 toward the inside of the cord holding hole 3b. As a result, as shown in FIG. 7, each blade portion 23 comes into contact with the diagonally downward position of the outer peripheral surface of the first covering portion 92 of the optical fiber cord 90, and when the stopper 20 is further pushed in, FIG. As shown, each blade portion 23 scrapes the first covering portion 92 of the optical fiber cord 90 like a flat chisel, and engages the scraped portion so that both side edge portions 22a of each positioning slit 22 enter the scraped portion. As a result, the optical fiber cord 90 is positioned and held in the axial direction thereof. When the optical fiber cord 90 is held in this way, when the optical fiber cord 90 is positioned and fixed and after the positioning and fixing thereof, the covering portion 92 of the inserted portion of each blade portion 23 moves the optical fiber 91 in the radial direction. There is an advantage that it becomes difficult to compress, and therefore distortion does not easily occur in the optical fiber 91, and the loss of light thereof can be suppressed to a small value.

【0029】

Further, since the ferrule portion 4 and the housing portion 2 are integrated in the first optical connector 1, there is an advantage that the ferrule portion 4 and the housing portion 2 are easy to manufacture and are not easily disassembled after manufacturing.

【0030】

Further, as shown in FIGS. 1 to 5, the second optical connector 40 extends toward the holding portion 41 that holds the optical element 95 and the tip end side of the holding portion 41, and the first optical connector 40. The housing portion 2 of 1 is provided with an outer fitting tubular portion 50 formed so as to be outer fit.

【0031】

Specifically, the holding portion 41 is formed in a housing-like body formed of a resin or the like and having an element accommodating portion 42 capable of accommodating and arranging the optical element 95 inside. The rear and lower parts of the element accommodating portion 42 are open, and in a state where the optical element 95 is accommodated and arranged in a predetermined conductive case 96, the main body portion 95a is pressed forward in the element accommodating portion 42 and the optical element. The optical element 95 is accommodated and arranged in the element accommodating portion 42 so that the lead portion 95b extending below the 95 is pulled out below the element accommodating portion 42, and then the back surface thereof is accommodated in the element accommodating portion 42. By arranging the spacer 97 from the side and mounting and fixing the mounting member 98, the optical element 95 is configured to be housed and held in the device housing portion 42 in a predetermined posture.

【0032】

Further, a ferrule portion 4 on the first optical connector 1 side is inserted into the tip portion of the holding portion 41, which is located in front of the light emitting surface or the light receiving surface of the optical element 95 housed and arranged in the element accommodating portion 42. A tubular ferrule introduction portion 43 for this purpose is integrally formed. Then, by inserting the ferrule portion 4 on the first optical connector 1 side into the ferrule introduction portion 43, the end surface of the optical fiber 91 housed in the ferrule portion 4 becomes the light emitting surface or the light receiving surface of the optical element 95. The optical fiber 91 and the optical element 95 are optically coupled to each other.

【0033】

Further, the outer fitting tubular portion 50 is integrally formed at the tip end portion of the holding portion 41, and is formed in a substantially square tubular shape that surrounds the ferrule introduction portion 43 from the periphery toward the tip end side thereof. In the present embodiment, the outer fitting tubular portion 50 is formed in a shape that can be externally fitted to the housing portion 2 including the engaging extension piece 15.

【0034】

The outer fitting tubular portion 50 is extended to such an extent that the entire circumferential direction thereof reaches the mounting opening 10 in a state where the first optical connector 1 and the second optical connector 40 are connected to the mounting opening. It is formed in a shape that covers at least a part of the portion 10. In the present embodiment, the outer fitting tubular portion 50 is formed so as to cover the tip end side half of the mounting opening 10 in the connected state of the first optical connector 1 and the second optical connector 40. As a result, the mounting opening 10 is partially closed in the connected state between the first optical connector 1 and the second optical connector 40 to prevent the stopper 20 from being pulled out from the mounting opening 20.

【0035】

Further, a push-in guide surface 50b that sequentially expands outward toward the tip side is formed at the tip edge portion of the bottom portion 50a, which is a portion of the outer fitting tubular portion 50 that covers the mounting opening 10. Then, when connecting the first optical connector 1 and the second optical connector 40, as will be described in detail later, when the stopper 20 protrudes from the predetermined small amount mounting opening 10, the protruding portion of the stopper 20 Is slidably contacted with the push-in guide surface 50b, and the stopper 20 is pushed into the mounting opening 10.

【0036】

In the present embodiment, an engaged piece 55 capable of engaging the engaging convex portion 16 on the first optical connector 1 side is formed on the upper portion of the outer fitting tubular portion 50 on the tip end side, and the optical connector is formed. By engaging the engaging convex portion 16 on the 1 side with the engaged piece 55, the first optical connector 1 and the second optical connector 40 are connected and held in a retaining state.

【0037】

Further, the second optical connector 40 has an advantage that the holding portion 41 and the ferrule introducing portion 43 are integrated, so that the manufacturing thereof is easy.

【0038】

In the optical connector device configured as described above, when the first optical connector 1 and the second optical connector 40 are connected by relatively pushing the engaging convex portion 16 until it is engaged with the engaged piece 55, The ferrule portion 4 is inserted into the ferrule introduction portion 43 to optically connect the optical fiber cord 90 and the optical element 95, and the outer fitting tubular portion 50 is externally fitted to the housing portion 2. In this state, as shown in FIGS. 3 to 5, the bottom portion 50a of the outer fitting tubular portion 50 closes about the tip end side half of the mounting opening 10. Therefore, even if the stopper 20 tries to be pulled out from the mounting opening 10 to the outside of the housing portion 2 due to vibration, a change in the temperature environment, or the like while the first optical connector 1 and the second optical connector 40 are connected. The bottom portion 50a of the outer fitting tubular portion 50 prevents the stopper 20 from falling off. In particular, it is effective in an environment where the stopper 20 is loosened and easily falls off, such as in an environment where the vibration is severe such as an automobile or an environment where the temperature is drastically changed.

【0039】

Further, when the first optical connector 1 and the second optical connector 40 are connected, the stopper 20 is not sufficiently inserted, and the stopper 20 protrudes outward by a predetermined amount or more from the mounting opening 10. As shown in 9, the outer fitting cylinder before the engaging protrusion 16 is engaged with the engaged piece 55, that is, before the connection between the first optical connector 1 and the second optical connector 40 is completed. The tip side edge of the bottom portion 50a of the shape portion 50 is locked to the protruding portion of the stopper 20 to prevent further pushing, and the complete connection between the first optical connector 1 and the second optical connector 40 is hindered. .. Therefore, when connecting the first optical connector 1 and the second optical connector 40, it is possible to easily notice that the stopper 20 is incompletely inserted.

【0040】

At this time, if the amount of protrusion of the stopper 20 from the mounting opening 10 is a small amount such that the protruding portion of the stopper 20 can be slidably contacted with the push-in guide surface 50b of the outer fitting tubular portion 50. By the sliding contact between the protruding portion of the stopper 20 and the push-in guide surface 50b, the stopper 20 is pushed into the back of the mounting opening 10 as the first optical connector 1 and the second optical connector 40 are connected. Therefore, when the protruding amount of the stopper 20 is a little less than a predetermined amount, it is convenient because the stopper 20 can be completely inserted by connecting the first optical connector 1 and the second optical connector 40.

【0041】

In the present embodiment, it has been described that the second optical connector 40 holds an optical element 95 such as a light emitting element or a light receiving element, but the second optical connector 40 holds another optical fiber cord. The optical fiber cord 90 may be optically coupled to another optical fiber cord by connecting the first optical connector 1 and the second optical connector 40.

【0042】

Further, in the present embodiment, in the connected state of the first optical connector 1 and the second optical connector 40, the entire circumferential direction of the outer fitting tubular portion 50 is extended to reach the mounting opening 10 for mounting. Although the shape covers about the tip end side half of the opening 10, the outer fitting tubular portion 50 covers at least a part of the mounting opening 10 to the extent that the stopper 20 can be prevented from falling off from the mounting opening 10. Any shape may be used as long as it covers. Further, the shape may be such that it completely covers the opening of the mounting opening 10.

【0043】

Further, as shown in the modified examples of FIGS. 10 to 12, at least one of the outer fitting tubular portion 50B (corresponding to the outer fitting tubular portion 50) of the second optical connector 40B (corresponding to the second optical connector 40). Only the part (the bottom 50Ba part in this modification) is extended until it reaches the mounting opening 10 in the connected state of the first optical connector 1 and the second optical connector 40B, and at least a part of the mounting opening 10 is extended. It may be formed in a shape that covers (in this modified example, a shape that covers the entire area before and after the opening of the mounting opening 10). In the modified examples of FIGS. 10 to 12, the components are shown by the same reference numerals and the description thereof is omitted as in the case of the components in the connector device of the above embodiment.

【0044】

Further, also in this modified example, a push-in guide surface 50Bb that sequentially expands outward toward the tip side is formed on the tip edge of the extended bottom 50Ba, and the first optical connector 1 and the second optical connector 40B are formed. The stopper 20 may be brought into sliding contact with the push-in guide surface 50Bb, which protrudes slightly less than a predetermined amount from the mounting opening 10, so that the stopper 20 can be completely inserted.

【0045】

[Effect of the invention]

As described above, according to the optical connector device according to claim 1 of the present invention, the first optical connector is formed with a cord accommodating hole for inserting and accommodating the optical fiber cord along the axial direction thereof. A substantially tubular housing portion having a mounting opening for communicating the cord accommodating hole to the outside on one side, and a cord accommodating hole in the cord accommodating hole along a direction orthogonal to the insertion direction of the optical fiber cord through the mounting opening. The second optical connector is provided with a stopper that is inserted into and holds the optical fiber cord in its axial direction by engaging with the covering portion of the optical fiber cord in the cord accommodating hole, and the second optical connector is another optical fiber. It is provided with a holding portion that holds the cord or an optical element, and an outer fitting tubular portion that extends toward the tip end side of the holding portion and is formed so as to be externally fitable in the housing portion of the first optical connector. The outer fitting tubular portion is extended until the entire circumferential direction or a part of the circumferential direction reaches the mounting opening in the connected state between the first optical connector and the second optical connector. Since it is formed in a shape that covers at least a part of the above, at least a part of the mounting opening is closed by the outer fitting tubular portion in the connected state between the first optical connector and the second optical connector. Therefore, the stopper is prevented from falling off from the mounting opening.

【0046】

Moreover, when trying to connect the 1st optical connector and the 2nd optical connector, if the stopper protrudes outward by a predetermined amount or more from the mounting opening, it is outside before both connectors are completely connected. Since the tip edge of the fitting tubular part comes into contact with the protruding part of the stopper and the connection work between the first optical connector and the second optical connector is hindered, it is easy to insert the stopper incompletely. Can be noticed.

【0047】

Further, as described in claim 2, a push-in guide surface that sequentially expands outward toward the tip side is formed at the tip edge portion of the portion of the outer fitting tubular portion that covers the mounting opening. In the case, when the amount of protrusion of the stopper from the mounting opening is slightly less than a predetermined amount, the stopper is pushed deep into the mounting opening by sliding contact between the protruding portion of the stopper and the push-in guide surface. Is done. Therefore, it is convenient because the stopper can be completely inserted by connecting the first optical connector and the second optical connector.

【0048】

Further, as described in claim 3, a ferrule portion for inserting and holding the optical fiber exposed at the end of the optical fiber cord is integrally formed in the housing portion, and the holding portion is formed with the first optical connector. In the case where the ferrule introduction portion that guides the ferrule portion toward the other optical fiber cord or optical element held by the holding portion when connecting to the second optical connector is integrally formed, the first There is an advantage that the number of parts constituting the optical connector and the second optical connector is reduced and the manufacturing thereof is easy.

[Simple explanation of drawings]

[Figure 1]

It is an exploded perspective view which shows the optical connector apparatus which concerns on embodiment of this invention.

[Figure 2]

It is sectional drawing which shows the non-connection state of the 1st optical connector and the 2nd optical connector in an optical connector apparatus.

[Fig. 3]

It is sectional drawing which shows the connection state of the 1st optical connector and the 2nd optical connector.

[Fig. 4]

It is a bottom view which shows the connection state of the 1st optical connector and the 2nd optical connector.

[Fig. 5]

It is a partially broken side view which shows the connection state of the 1st optical connector and the 2nd optical connector.

[Fig. 6]

It is a bottom view which shows the 1st optical connector.

[Fig. 7]

It is sectional drawing which shows the holding work process of the optical fiber cord in the 1st optical connector.

[Fig. 8]

It is sectional drawing which shows the holding state of the optical fiber cord in the 1st optical connector.

[Fig. 9]

It is sectional drawing which shows the connection work process of the 1st optical connector and the 2nd optical connector.

[Fig. 10]

It is a bottom view which shows the non-connection state of the 1st optical connector and the 2nd optical connector in the connector device which concerns on a modification.

[Fig. 11]

It is a bottom view which shows the connection state of the 1st optical connector and the 2nd optical connector.

[Fig. 12]

It is a partial cross-sectional side view which shows the connection state of the 1st optical connector and the 2nd optical connector.

[Explanation of symbols]

1 1st optical connector 2 Housing part 3 Cord housing hole 4 Ferrule section 10 Mounting opening 20 stopper 43 Ferrule Introduction 40 2nd optical connector 50 Outer tubular part 50a bottom 50b Push-in guide surface 40B optical connector 50B outer fitting tubular part 50Ba bottom 50Bb Push-in guide surface 90 fiber optic cord 91 Optical fiber 92 1st covering 93 Second coating 95 Optical element