Optical transmission device

Details Optical transmission device Optical transmission device

2004-03-24

2008-05-27

Hjerpe, Richard (Department: 2629)

Optical communications

Optical communication over freee space

Transmitter and receiver

C359S833000

Reexamination Certificate

active

07379674

ABSTRACT:
An optical transmission device for providing stable communication with a partner device by reducing errors in optical axis misalignment. The errors are caused by uneven distribution of the light intensity in a received light beam resulting from atmospheric microscopic fluctuations. One embodiment includes a transmission and receiving unit, which employs two photodetectors, one aligned with and the other misaligned with the optical axis of the optical transmission device. Other embodiments employ a movable means for shifting a photodetector or a lens unit relative to the optical axis of the optical transmission device.

REFERENCES:
patent: 4742218 (1988-05-01), Nakamura et al.
patent: 4867560 (1989-09-01), Kunitsugu
patent: 5349176 (1994-09-01), Czichy
patent: 5627669 (1997-05-01), Orino
patent: 5644375 (1997-07-01), Suzuki
patent: 6175451 (2001-01-01), Iriyama
patent: 6178024 (2001-01-01), Degura
patent: 6219133 (2001-04-01), Kawase
patent: 6522397 (2003-02-01), Barricau et al.
patent: 6717651 (2004-04-01), Kato et al.
patent: 2004/0190908 (2004-09-01), Yoshimi
patent: 2004/0202482 (2004-10-01), Usui
patent: 4033776 (1992-05-01), None
patent: 3855021 (1996-07-01), None
patent: 0658987 (1995-06-01), None
patent: 0876012 (1998-11-01), None
patent: 0911995 (1999-04-01), None
patent: 5-122155 (1993-05-01), None
patent: 5-133716 (1993-05-01), None
patent: 7-71956 (1995-03-01), None
patent: 8-265263 (1996-10-01), None
patent: 9-181340 (1997-07-01), None
patent: 11-98081 (1999-04-01), None
patent: 2001-094513 (2001-04-01), None
patent: 2001-111491 (2001-04-01), None
patent: 2004-312697 (2004-11-01), None
patent: 2004-312698 (2004-11-01), None

Affiliated with

Also associated with

Rating

Optical transmission 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 transmission device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical transmission device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3981504