ERASABLE OPTICAL MEMORY MATERIAL FROM A FERROELECTRIC POLYMER
Assignee
US Government
Filed as: UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY
Filed
Sep 12, 1985
Granted
Mar 15, 1988
Location
San Diego CA (SAIC/General Dynamics)
Abstract
An electro-optic memory effect providing for storing, erasing and rewritingigital information relies upon a ferroelectric polymer, polyvinylidene fluoride. Recent development of tri-fluoroethylene copolymers of this material with Curie temperatures below the melting point provides a means of selective writing, storage and erasure. The advantage of the polyvinylidene fluoride material for optical recording is its high chemical and physical stability. This material provides a mechanism for bit-by-bit erasure and long time storage of information.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Apr 25, 1986
Rescinded
Oct 22, 1987
Duration
1 year, 6 months
Inventor
- 1T. ROGER OGDEN
Sensitive facility: San Diego CA (SAIC/General Dynamics)
Record Details
- Patent number
- US 4731754
- Application
- 06775541
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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