Optical waveguides – With disengagable mechanical connector – Optical fiber to a nonfiber optical device connector
Reexamination Certificate
2006-10-17
2006-10-17
Ullah, Akm Enayet (Department: 2874)
Optical waveguides
With disengagable mechanical connector
Optical fiber to a nonfiber optical device connector
C385S147000
Reexamination Certificate
active
07121737
ABSTRACT:
A light emitting device includes an optical fiber plug formed with a through-hole into which a bundle of optical fibers is inserted and a light-emitting device holder formed with a through-hole in which a condenser lens and a light emitting device are accommodated, and the optical fiber plug is assembled with the light-emitting device holder so that the light emitting device is optically coupled to the optical fiber through the condenser lens; a positioning device, a hyperboloid lens surface or a reflecting surface is formed in the optical fiber plug/light emitting device holder, condenser lens or the inner surface of the light-emitting device holder so that the light incident on the light input end is increased by virtue of the exact positioning between the optical fiber and optical axis, reduction of aberration or increase of light directed to the condenser lens.
REFERENCES:
patent: 4503326 (1985-03-01), Searle
patent: 5012182 (1991-04-01), Fujiki et al.
patent: 5531664 (1996-07-01), Adachi et al.
patent: 2001-118411 (2001-04-01), None
Kato Tadaharu
Muramatsu Shigeru
Sasaki Tsutomu
Ullah Akm Enayet
Yamaha Corporation
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