Optical: systems and elements – Holographic system or element – Using a hologram as an optical element
Patent
1991-09-27
1993-01-12
Lerner, Martin
Optical: systems and elements
Holographic system or element
Using a hologram as an optical element
359494, 359500, G02B 104, G02B 530
Patent
active
051794560
ABSTRACT:
A method of manufacturing an optical compensator sheet comprising the steps of providing a sheet of ionomer, which ionomer is bridged with sodium or magnesium ions, stretching said sheet of ionomer along one direction in the plane of sheet, so as to generate uni-axial optical anisotropy of predetermined amount having an optical axis along the stretched direction, sandwiching said stretched sheet of ionomer between a pair of substrates, putting said sandwiched sheet in an evacuatable heat-resisting bag, evacuating and sealing said bag, loading said bag in an autoclave furnace and applying heat and pressure to said sheet in said autoclave furnace at a temperature not less than the melting point of the sheet. The stretched sheet has a positive optical anisotropy along the stretched direction. The sheet after heat and pressure treatment has a negative optical anisotropy along the normal to the sheet.
REFERENCES:
patent: 3447857 (1969-06-01), McCartney
patent: 4385806 (1983-05-01), Fergason
patent: 4617207 (1986-10-01), Ueki et al.
patent: 4620772 (1986-11-01), Sugimoto et al.
patent: 4701028 (1987-10-01), Clere et al.
patent: 4759611 (1988-07-01), Downey, Jr.
patent: 5042924 (1991-08-01), Terasaki et al.
patent: 5061042 (1991-10-01), Nakamura et al.
Aizawa Masanobu
Clerc Jean F.
Hirose Shin-ichi
Takenaka Shunji
Yamauchi Shigekazu
Lerner Martin
Stanley Electric Co. Ltd.
LandOfFree
Optical birefringence compensator 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 birefringence compensator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical birefringence compensator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1223700