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US 5,684,903 AGranted
Receptacle and method of manufacturing the same
AssigneesHamamatsu Photonics K.K., KYOCERA Corporation
InventorsMikio Kyomasu, Takeshi Ikeya, Toshimichi Yasuda, Shin Ikegami, Takashi Yamagishi
Life of this patent
Estimating the term…
Abstract
This receptacle comprises a case made of resin, holding a rigid sleeve by being in contact with the outer wall of the rigid sleeve, having a through hole communicating with the through hole of the rigid sleeve at one end thereof.
Claims10
A receptacle for coupling light from a light source to an optical fiber installed in a ferrule, comprising:
- (a) a rigid sleeve having a through hole defined by the inner radius, wherein the ferrule fits into the inner hole by inserting the ferrule into it;
- (b) a case made of resin, holding said rigid sleeve by being in contact with the outer wall of said rigid sleeve, having a through hole communicating with the through hole of said rigid sleeve at one end thereof;
- and
- (c) a lens fixed to the inner wall of the through hole of said case, the optical axis of said lens being identical with the axis of the through hole of said case, the axis of the through hole of said rigid sleeve being identical with the axis of the through hole of case, the light being coupled to the optical fiber through said lens, sleeve and ferrule;
- further comprising a pinhole member having:
- first and second surfaces opposing each other, a pinhole extending between said first surface and said second surface along the axis of said rigid sleeve, a side surface surrounding said pinhole member and being continued to said first and second surfaces, wherein said side surface is fixed to the inner wall of said rigid sleeve, wherein said first surface faces the light source via the through hole of said case, and wherein a transfer surface connects said first surface to said side surface, said transfer surface forming obtuse angles with said side and first surfaces, wherein an opening edge of the through hole at the end of said case nearer to said rigid sleeve is in contact with said first surface of said pinhole member.
3 more elements
A receptacle for coupling light from a light source to a fiber, comprising:
- (a) a rigid sleeve;
- (b) a one piece case made of resin, having first and second through holes, an outer surface of said rigid sleeve being in contact with an inner surface of said first through hole;
- (c) a lens fixed to an inner surface of said second through hole of said case, said lens having an optical axis identical with an axis of said first through hole;
- and
- (d) a pinhole member having:
- first and second surfaces opposing each other,
- a pinhole extending between said first surface and said second surface and aligned along an axis of said rigid sleeve,
- a side surface surrounding said pinhole member and being continued to said first and second surfaces,
- wherein said side surface is fixed to the inner surface of said rigid sleeve,
- wherein said first surface faces the light source via said second through hole of said case,
- wherein a transfer surface connects said first surface to said side surface, said transfer surface forming obtuse angles with said side surface, and
- wherein an opening edge of said second through hold of said case nearer to said rigid sleeve is in contact with said first surface of said pinhole member.
9 more elements
A receptacle, comprising:
- (a) a rigid sleeve;
- (b) a one piece case made of resin, having first and second through holes in communication with each other, an outer surface of said rigid sleeve being in contact with an inner surface of said first through hole;
- (c) a light source fixed in said case;
- (d) a lens fixed to an inner surface of said second through hole of said case, and arranged between said light source and said sleeve, said lens having an optical axis identical with an axis of said first through hole.
1 more element
Dependencies are inferred from the claim text.