Variable optical attenuator

Details Variable optical attenuator Variable optical attenuator

2005-12-20

2005-12-20

Lee, John D. (Department: 2874)

Optical waveguides

Accessories

Attenuator

C385S014000

Reexamination Certificate

active

06978076

ABSTRACT:
A variable optical attenuator is constituted of input/output optical systems, a birefringent member provided at output sides of the input/output optical systems, a liquid-crystal member capable of individually varying polarizing states of input beams exiting the birefringent member, and a reflection member which reflects light passing through the liquid-crystal member, to thereby cause the light to return to an output lens of the input/output optical systems by way of the liquid-crystal member and the birefringent member. Thus, there can be provided a variable optical attenuator which is more compact and less expensive than a related-art variable optical attenuator.

REFERENCES:
patent: 5727109 (1998-03-01), Pan et al.
patent: 6055104 (2000-04-01), Cheng
patent: 6282361 (2001-08-01), Nishimura et al.
patent: 6781736 (2004-08-01), Hoyt et al.
patent: 63201815 (1988-08-01), None
patent: 2000-180803 (2000-06-01), None

Affiliated with

Also associated with

Rating

Variable optical attenuator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Variable optical attenuator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable optical attenuator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3521521