Optical apparatus using liquid crystals for shaping the spatial

Details Optical apparatus using liquid crystals for shaping the spatial Optical apparatus using liquid crystals for shaping the spatial

1985-04-01

1987-07-14

Corbin, John K.

350335, 350350R, G02F 113

Patent

active

046799117

ABSTRACT:
The spatial intensity profile of an optical beam of designated wavelengths, such as a laser beam, is shaped (the beam is apodized) by means of cholesteric liquid crystals of opposite chirality disposed successively along the path of the beam. The crystals have curved surfaces, which may be defined by a lens which defines the thickness of the liquid crystal fluid gap in a liquid crystal cell, so as to vary the selective reflection of the designated wavelength across the aperture of the beam. In this way, a soft aperture is provided. By using tandem cell pairs having liquid crystals of opposite chirality, but of different pitch, and with lenses of different curvature, beams of different wavelengths which are projected colinearly along the path may be individually tailored in spatial intensity profile.

REFERENCES:
patent: 4190330 (1980-02-01), Berreman
patent: 4394069 (1983-07-01), Kaye
patent: 4408839 (1983-10-01), Wiener-Avnear
patent: 4444469 (1984-04-01), Kaye

Affiliated with

Also associated with

Rating

Optical apparatus using liquid crystals for shaping the spatial 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 apparatus using liquid crystals for shaping the spatial , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical apparatus using liquid crystals for shaping the spatial will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1425008