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Optical contact unit and optical plug

  • US 20050232552A1
  • Filed: 04/14/2005
  • Published: 10/20/2005
  • Est. Priority Date: 04/15/2004
  • Status: Active Grant
First Claim
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1. An optical contact unit which constructs an elastic contact at which a ferrule A connected to the end part of an optical fiber is faced and mechanically couples on another ferrule B placed at the front side of the ferrule A, comprising:

  • said ferrule A;

    a ferrule holder which holds said ferrule A and the back end part to which said optical fiber of said ferrule A is connected;

    an elastic member which gives said ferrule holder elasticity to translate in the optical axis direction of said optical fiber and holds said ferrule holder;

    a tubular main body comprising at least said ferrule holder and said elastic member; and

    a tubular cable adaptor which is inserted to the back opening part of said main body and is penetrated by said optical fiber, wherein said main body comprises a first small diameter part which has a first contact plane extending approximately vertical from the internal surface of said main body toward inside, said cable adaptor comprises a large diameter part which has a second contact plane extending approximately vertical from the external surface of said cable adaptor toward outside, a maximum radius of said large diameter part is larger than a minimum radius of said first small diameter part, said large diameter part is installed at the front side of said first small diameter part, and said second contact plane contacts to said first contact plane.

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