Optical assembly with optical transmitting and receiving...

Details Optical assembly with optical transmitting and receiving... Optical assembly with optical transmitting and receiving...

2006-04-28

2008-09-30

Le, Que T (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

C250S239000

Reexamination Certificate

active

07429725

ABSTRACT:
The present invention provides a low-cost optical assembly with both function of the optical transmission and the optical reception to the single fiber. The optical assembly provides both devices of the light-emitting and the light-receiving. The light-emitting device emits light with the first wavelength to the first direction, while, the light-receiving device provides an optical thin film that reflects the light with the first wavelength incident from the first direction to the second direction different from the first direction, while, transmits the light with the second wavelength that is incident from the second direction to a light-sensitive area formed within the light-receiving device.

REFERENCES:
patent: 4767171 (1988-08-01), Keil et al.
patent: 6236669 (2001-05-01), Nakanishi
patent: 6556608 (2003-04-01), Gilliland et al.
patent: 6925256 (2005-08-01), Heiney
patent: 2004-271921 (2004-09-01), None
patent: 2005-260223 (2005-09-01), None

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