Title:
【発明の名称】光学セル制御システム
Document Type and Number:
Japanese Patent JP3371910
Kind Code:
B2
Abstract:
PCT No. PCT/BE95/00040 Sec. 371 Date Oct. 28, 1996 Sec. 102(e) Date Oct. 28, 1996 PCT Filed Apr. 24, 1995 PCT Pub. No. WO95/30172 PCT Pub. Date Nov. 9, 1995A control system for an optical cell (light valve) is provided which comprises a first (oscillator) circuit supplied by a low voltage power source and including a primary winding of an induction coil and a secondary (resonant) circuit which includes the optical cell and a secondary winding of the induction coil. The secondary circuit includes the inductance of the secondary winding and the optical cell, and the induction coil provides a weak coupling between the primary and secondary windings. The resonant circuit provides a large over-voltage coefficient and great stability and the configuration made possible by the invention facilitates a significant reduction in the bulk of the control system.
More Like This:
Inventors:
Thomas, Jean-Francois
Vezan, Pierre
Vezan, Pierre
Application Number:
JP52789195A
Publication Date:
January 27, 2003
Filing Date:
April 24, 1995
Export Citation:
Assignee:
Research Frontiers Incorporated
International Classes:
A61F9/02; G02F1/03; G02F1/133; G02F1/163; G02F1/13; G02F1/17; (IPC1-7): G02F1/17; G02F1/13; G02F1/133; G02F1/163
Attorney, Agent or Firm:
Mitsuo Adachi (2 outside)