Active solid-state devices (e.g. – transistors – solid-state diode – Incoherent light emitter structure – With reflector – opaque mask – or optical element integral...
Reexamination Certificate
2006-07-11
2006-07-11
Tran, Minhloan (Department: 2826)
Active solid-state devices (e.g., transistors, solid-state diode
Incoherent light emitter structure
With reflector, opaque mask, or optical element integral...
C385S088000, C385S091000, C385S092000, C385S093000, C385S094000
Reexamination Certificate
active
07075117
ABSTRACT:
An optical semiconductor device having high precision of optical coupling and fabricated at low cost. The device comprises a semiconductor chip used as light source3, lens system6constituted from one or more resin lenses for converging light output from the semiconductor chip used as light source3, a conductive base2for mounting the semiconductor chip3thereon, and lens support assembly4and5for maintaining a predetermined distance from the semiconductor chip3and supporting the resin lens6. Deviation from the image point of the lens system6caused by change of the refractive index of the lens system6due to change in temperature is compensated for by change in the distance between the semiconductor chip3and the lens system6, caused by thermal expansion of the electrically conductive base2and the lens support assembly4and5.
REFERENCES:
patent: 5210650 (1993-05-01), O'Brien et al.
patent: 5313333 (1994-05-01), O'Brien et al.
patent: 5504828 (1996-04-01), Cina et al.
patent: 5570238 (1996-10-01), Leary
patent: 6040950 (2000-03-01), Broome
patent: 6120191 (2000-09-01), Asakura et al.
patent: 6504975 (2003-01-01), Yamagata et al.
patent: 6595701 (2003-07-01), Terada et al.
patent: H-04-320079 (1992-11-01), None
patent: H-08-146352 (1996-06-01), None
NEC Electronics Corporation
Rodela Eduardo A.
Tran Minhloan
LandOfFree
Optical semiconductor device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optical semiconductor device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical semiconductor device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3593889