Optical disk memory system utilizing a chiral smectic liquid cry

Details Optical disk memory system utilizing a chiral smectic liquid cry Optical disk memory system utilizing a chiral smectic liquid cry

1987-10-08

1989-07-04

Faber, Alan

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

365108, 365117, G11B 724, G11B 902, G11B 1112

Patent

active

048456950

ABSTRACT:
An improved magneto-optical disc memory with a ferroelectric liquid crystal (FLC) is shown. As FLC a chiral smectic liquid crystal is employed to exhibit a hysteresis between a pair of substrates which have easy polarization axes normal to each other Informations to be recorded are written on the disc in terms of a binary system by use of the hysteresis.

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