Accession Number:

AD0760173

Title:

Liquid Crystal Systems for Electro-Optical Storage Effects

Descriptive Note:

Final rept. 15 Jun 1970-30 Sep 1971

Corporate Author:

RCA LABS PRINCETON NJ

Personal Author(s):

• Castellano, Joseph A.
• Friel, Ronald N.
• McCaffrey, Michael T.
• Meyerhofer, Dietrich
• Oh, Chan S.

Report Date:

1971-12-01

Pagination or Media Count:

63.0

Abstract:

Research on materials and electro-optic response measurements of certain cholestericnematic mixtures was performed in an effort to develop an optical storage display. Mixture of selected compounds from the series, p- alkoxybenzylidene-p-aminophenyl acylates, were prepared and one ternary mixture NH-1 which exhibited nematic behavior from 25 to 105C was found. A group of optically active benzylidene aniline derivatives having alkoxy and acyloxy groups with asymmetric carbon atoms was prepared, and the compounds were found to exhibit cholesteric mesomorphism. A simulated, airborne ground location marker was constructed with a cell containing this material. In actual operation this device would provide the pilot or navigator of an aircraft with a map presentation of his past and present position as determined by two ground navigation stations.

Descriptors:

• *PHASE STUDIES
• *IMINES
• *SCREENS(DISPLAYS)
• SIMULATORS
• STEREOCHEMISTRY
• ESTERS
• ELECTROOPTICS

Subject Categories:

• Physical Chemistry
• Electrooptical and Optoelectronic Devices

Distribution Statement:

APPROVED FOR PUBLIC RELEASE