Optical waveguide using cholesteric liquid crystal polymer

Details Optical waveguide using cholesteric liquid crystal polymer Optical waveguide using cholesteric liquid crystal polymer

1995-06-05

2000-03-28

Parker, Kenneth

Liquid crystal cells, elements and systems

Liquid crystal optical element

349 77, 349115, 349176, 385 8, G02F 1133, G02F 11347

Patent

active

060438614

ABSTRACT:
An optical waveguide (5) for use in the in the visible range, the infrared range or the ultraviolet range. The waveguide has two cholesteric liquid crystal polymer layers (10) positioned parallel to each other, forming a gap between them. When electrically modulated to an `on` state, one or more of the cholesteric liquid crystal polymer layers become optically reflective, so that the waveguide becomes internally reflective, allowing a light beam (15) to be transmitted along the waveguide. The liquid crystal polymer is optically non-reflective when electrically modulated to an `off` state. The cholesteric liquid crystal polymer layers are each disposed on a substrate (30) having an electrically conductive layer (35) disposed between the substrate and the cholesteric liquid crystal polymer. A modulating means impresses an electrical signal upon the cholesteric liquid crystal polymer layers to convert them from the optically reflective state to the optically non-reflective state.

REFERENCES:
patent: 3498693 (1970-03-01), Fein et al.
patent: 3838908 (1974-10-01), Channin
patent: 3909113 (1975-09-01), Stotts
patent: 3963310 (1976-06-01), Giallorenzi et al.
patent: 4991924 (1991-02-01), Skankar et al.
patent: 5223310 (1993-06-01), Sighn et al.
patent: 5251053 (1993-10-01), Heidemann
patent: 5339178 (1994-08-01), Phelps, III et al.
patent: 5345527 (1994-09-01), Lebby et al.
patent: 5379139 (1995-01-01), Sato et al.
patent: 5537233 (1996-07-01), Miura et al.
Suinov et al "Deflector Based on Frustrated Total Internal Reflection of Light" Sov.J.Quantum Electron. 7(9)--Sep. 1977--pp. 1146-1147.

Affiliated with

Also associated with

Rating

Optical waveguide using cholesteric liquid crystal polymer 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 waveguide using cholesteric liquid crystal polymer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical waveguide using cholesteric liquid crystal polymer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1330483