Tunable liquid-crystal etalon filter

Details Tunable liquid-crystal etalon filter Tunable liquid-crystal etalon filter

G - Physics

02

B

G02B 5/28 (2006.01) G02F 1/133 (2006.01) G02F 1/19 (2006.01) G02F 1/21 (2006.01) H04B 10/135 (2006.01) G02F 1/139 (2006.01)

Patent

CA 2088372

A tunable liquid-crystal etalon filter comprising two dielectric stack mirrors (18, 20) defining an optical cavity into which is filled a liquid crystal (26). Electrodes (14, 16) disposed on the outsides of the mirrors apply an electric field to the liquid crystal, changing its refractive index and thereby changing,its optical length. Thereby, the optical pass band of the filter can be electrically changed in a low-powered, compact, rugged, and economical structure.

Filtre étalon à cristaux liquides accordable comprenant deux miroirs diélectriques à empilage (18, 20) qui définissent une cavité optique. Ladite cavité est remplie de cristaux liquides (26). Des électrodes (14, 16) disposées sur les parties extérieures des miroirs appliquent un champ électrique aux cristaux liquides, ce qui change leur indice de réfraction et par conséquent leur focale. La bande passante optique du filtre peut ainsi être modifiée électriquement dans une structure robuste, compacte, de faible puissance et peu coûteuse.

Affiliated with

Also associated with

Rating

Tunable liquid-crystal etalon filter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tunable liquid-crystal etalon filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tunable liquid-crystal etalon filter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-2006270