Endoscope using liquid crystal devices different in the response

Details Endoscope using liquid crystal devices different in the response Endoscope using liquid crystal devices different in the response

1989-08-21

1991-09-10

Kostak, Victor R.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358225, 359 53, 359 40, 359 92, 359 94, H04N 718, A61B 104

Patent

active

050478478

ABSTRACT:
At least a part of an image forming optical system is formed of a liquid crystal assembly consisting of a plurality of liquid crystals having a refractive index anisotropy and having different response frequencies of molecule orientation so that the transmittivity and refractive index of the plurality of liquid crystals may be independently controlled with few signal lines by varying the frequency of the driving signal applied to the liquid crystal assembly.

REFERENCES:
patent: 4698668 (1987-10-01), Milgram
patent: 4792850 (1988-12-01), Lipton et al.
patent: 4831452 (1989-05-01), Takanashi et al.
patent: 4836654 (1989-06-01), Fujimura et al.
patent: 4919520 (1990-04-01), Okada et al.

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