JPS6095408A - Optical connector - Google Patents

Abstract

PURPOSE:To make an optical circuit connection for right-angled deflection with small-sized structure and to improve its precision by inserting united connector couplers into orthogonal through holes formed in the block of a connector body, and fixing a cover having a 45 deg. slanting surface. CONSTITUTION:The connector couplers 3 and 4 are inserted into the holes 1a and 1b of the connector body 1. The covers 2 are pressed in cut parts of the connector body 1. This cover 2 has the slanting surface 1a formed at the part corresponding to the intersection of the axes of the through holes 1a and 1b, and a reflecting member 2b such as a mirror is stuck on the slanting surface 2a. Consequently, a light signal transmitted through one optical fiber 16 is diffused and projected from an end surface 15 and made by the lens 5 of the connector coupler 3 into parallel luminous flux, which is deflected in optical path by the reflecting member 2b and made incident to the other optical fiber 17 for transmission through the lens 7 of the other connector coupler 4. Thus, the optical circuit connection is made with the small-sized structure and the precision is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Technical Field of the Invention The present invention relates to a connector for an optical fiber transmission line, and particularly relates to an optical connector that deflects an optical path at right angles.

(2) Purpose of the Invention In the field of optical communication using optical fibers as optical transmission lines, it is necessary and indispensable to disconnect and disconnect optical fibers.

Recently, there has been remarkable development of various optical connectors for such parts, but most of them are linear optical connectors. On the other hand, the miniaturization of various components and elements in optical communication equipment requires high-density packaging, and the optical transmission lines used in this equipment also have to be installed in a small amount of space1. In the case of optical fiber connection with a circuit device using the conventional optical connector described above, there is a limit to the miniaturization of the device because the space required for bending the optical fiber connector and the optical fiber that protrude perpendicularly to each other is required.

In view of these points, the present invention provides an electrical connector.

The object of the present invention is to provide an optical connector that can deflect the line at right angles in an optical fiber transmission line as well as in a coaxial line connector and minimize the space required.

Currently, there have been almost no disclosures of publicly known specific configurations of such optical connectors.
The present invention shows its concrete feasibility.

(3) Structure of the Invention The above object is to provide a connector body having a through hole whose axes are perpendicular to each other, a pair of connector connectors each inserted and fixed into the through hole of the connector body from orthogonal directions, and a To connect the optical paths of the pair of connector couplers to the axis orthogonal part of the through hole.

This is achieved by an optical connector comprising a cover that engages with the connector body and has an end surface that fixes a reflective member that is inclined at 45 degrees with respect to the axis of the through hole.

(4) Embodiments of the Invention The present invention will be explained below based on the embodiments shown in FIGS. 1 and 2.

FIG. 1 is a sectional view of an embodiment of the present invention, and FIG. 2 is a perspective view.

In the figure, 1 is the connector body, la and lb are through holes,
2 is a cover, 2a is an inclined view, 2b is a reflective member, 3.4 is a connector connector, 5.7 is a lens, and 6.8 is a screw.

In FIG. 1, the connector main body 1 is a cubic metal block with a cross-sectional shape as shown in the perspective view of FIG. It is set up. The perpendicular angle between the holes 1a and 1b can be easily obtained based on the perpendicularity of the adjacent surfaces of the main body 1.The connector connector 3.4 is screwed onto one of the outer sides of the cylindrical connector body. 6.8 is engraved, and the other is hole 1 of connector body 1.
It has a cylindrical shape that fits either a or 1b. On the other hand, the circular part is provided with a step 9 at the end opposite to the screws 6 and 8, and a lens support member 11 is press-fitted into the inner circumferential surface 10, and its end is positioned by abutting against the step 9. .

The lens support member 11 has a cylindrical shape, and the lens 5,
7 is positioned in contact with the step 12 and is axially elastically biased and locked by an expansion retaining ring (not shown). Note that an appropriate gap is provided in the radial direction to prevent the influence of thermal expansion due to changes in ambient temperature. Also, this gap is flexible! ! It is also possible to eliminate the looseness of the protective resin filling.

In this embodiment, two identical connector connectors 3.4 are prepared as a pair.

A cover 2 is press-fitted into the notched portion of the connector body 1. This cover 2 is located at a portion corresponding to the point where the axes of the through holes 1a and 1b intersect.

An inclined surface 2a is formed, and a reflective member 2b such as a mirror is attached to the inclined surface 2a. If the inclined surface 2a can sufficiently reflect light, the reflective member 2b is not necessary.

Here, as a reflecting member, a prism 13 is used as shown in FIG.
A reflector surface 14 may be formed on the connector body and placed in a space 15 surrounded by the connector body and the inclined view 2a. The overall coupled state is shown in FIG.

In the figure, 13 is a plug, and 14 is a cap nut.

15 is an end face, 16.17 is an optical fiber 16.
The tips of the plugs 17 are inserted into the holes of the respective plugs, and the plugs 13 are inserted into the connector connectors 3.4, and the two are fastened together with a single nut 14.

The tip 15 of the plug 13 is pressed against the end surface of the lens support member 11, and its position in the axial direction is determined.

This allows the end face of the optical fiber 16.17 and the lens 5.7 to
The distance between them is constant. As a result, the optical signal transmitted by one optical fiber 6 is emitted from the end face 15 at a divergence angle based on N and A, and reaches the lens 5 of the connector coupler 3. The light beam is expanded by the lens 5 and becomes a parallel light beam. The optical path is then deflected as it is by the reflecting member 2), and is again transmitted to the optical fiber 7 by the lens 7 of the other connector coupler 4.

Figure 5 is a side cross section of another embodiment of the present invention, in which the same connector coupler as in the above embodiment is fixed to one side, but a bag-shaped nut is attached to the other side instead of the screw on the outer periphery of the connector body. 18a
The connector connector 1B fitted therein is fixed. This is the case when the optical fiber connector has a male thread engraved on the outer peripheral surface, or when the optical element 9 has a similar shape, such as a light emitting unit.

Suitable for coupling to a light receiving unit.

As a further different embodiment, although not particularly shown, both connector connectors may be made of the above-mentioned bag-shaped nut, and similarly it can be connected to a male-threaded optical fiber connector or an optical element. (5 ) Effects of the Invention As described above, the optical connector of the present invention has an optical connector of the present invention, in which a pair of connector connectors and a cover having a 45-degree inclined surface are fixed to orthogonal through holes provided in the block of the connector body. It is extremely simple, has good manufacturability, has high precision, and has remarkable practical effects, such as being able to connect optical circuits in a limited space.

[Brief explanation of drawings]

Fig. 1 shows an embodiment of the present invention in a separated state before assembly and a side cross section, Fig. 2 is a perspective view of the connector body Fig. 3 is an example of a reflective member, and Fig. 4 explains the connection of an optical fiber connector. A sectional view of the dam, FIG. 5, shows another embodiment. In the figure, 1 is the connector body, la and lb are through holes. 2 is a cover, 3 is a connector connector, and 5 and 7 are lenses. 71 Procedural Amendment (December 11, 1980 1, Case Indication 1981 Poetry Request No. 117342 3, Person making the amendment Relationship to the case Patent Applicant Address Nakahara Ward, Yozaki City, Kanagawa Prefecture 1015 Kamiodanaka (5
22) Name: Fujitsu Ltd. 4, Agent Address: 1015-5 Kamiodanaka, Nakahara-ku, Yozaki-shi, Kanagawa Prefecture Date of amendment order: November 27, 1980 (shipment date) Figure 1

Claims (1)

[Scope of Claims] A connector body having through holes whose axes are orthogonal to each other, and a pair of connector connectors each inserted and fixed into the through holes of the connector body from orthogonal directions. engaging with the connector body so as to connect the optical path of the pair of connector connectors to the axis orthogonal portion of the through hole of the connector body;
An optical connector comprising: a cover provided with an end face for fixing a reflecting member inclined at 45 degrees with respect to the axis of the through hole.