Optical elements based on liquid-crystalline substances, and...

Details Optical elements based on liquid-crystalline substances, and... Optical elements based on liquid-crystalline substances, and...

G - Physics

02

F

G02F 1/13 (2006.01) G02B 5/30 (2006.01) G02F 1/1333 (2006.01) G02F 1/1337 (2006.01)

Patent

CA 2089337

OPTICAL ELEMENTS BASED ON LIQUID-CRYSTALLINE SUBSTANCES. AND A PROCESS FOR THEIR PREPARATION Abstract of the Disclosure The invention relates to optical elements based on liquid- crystalline substances, and to a process for the production thereof. The optical elements based on liquid-crystalline sub- stances are ones which exhibit no birefringence in a defined direction of incidence, optical elements in which no birefringence occurs perpendicularly to the surface being excepted. The process for preparing the optical elements comprises illuminating a liquid-crystalline substance with unpolarized light of suitable wavelength at a defined angle in such a way that, after illumina- tion, the director of this substance is aligned parallel to the direction of the illuminating light on passing through said sub- stance.

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