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Optical connector and endoscope with optical connector

  • US 5,193,135 A
  • Filed: 10/07/1991
  • Issued: 03/09/1993
  • Est. Priority Date: 10/31/1990
  • Status: Expired due to Fees
First Claim
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1. An optical connector comprising:

  • (a) a tubular connector body having a stopper portion and a first threaded portion formed on an outer periphery of said connector body, one end portion of a light guide being adapted to be inserted in and fixed to said connector body;

    (b) a tubular retainer including an abutment portion, a second threaded portion which is formed on an inner periphery of a proximal end portion of said retainer and is threadedly engaged with said first threaded portion, and a radially inwardly-directed annular flange formed on the inner periphery of said retainer adjacent to an open distal end of said retainer, said retainer being threaded on said connector body to such an extent that said abutment portion is abutted against said stopper portion of said connector body;

    (c) an optical element received in said retainer and disposed between said flange of said retainer and the one end face of said light guide; and

    (d) an annular elastic member received in said retainer and disposed between said optical element and a distal end surface of said connector body, said elastic member urging said optical element against said flange of said retainer, thereby keeping said optical element away a predetermined distance from the one end face of said light guide.

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