Gradient index liquid crystal devices and method of fabrication

Details Gradient index liquid crystal devices and method of fabrication Gradient index liquid crystal devices and method of fabrication

1989-12-19

1991-10-29

Hille, Rolf

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 93, 359101, 359102, G02F 113

Patent

active

050610465

ABSTRACT:
Laser beam apodizers using cholesteric liquid crystals provides soft edge profile by use of two separate cholesteric liquid crystal mixtures with different selective reflection bands which in an overlap region have a gradient index where reflectivity changes as a function of position. The apodizers can be configured as a one-dimensional beam apod

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