TV optical effect generating system

Details TV optical effect generating system TV optical effect generating system

1987-05-20

1988-09-06

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358 22, 358183, H04N 514, H04N 5262, H04N 5275

Patent

active

047697075

ABSTRACT:
A key signal such as a TV signal or the like is provided to a liquid crystal TV panel, by which an image of a desired shape is displayed on the display screen of the liquid crystal TV panel at a position where an optical effect is intended to be produced. Light from a light source is applied to the liquid crystal TV panel, transmitted or reflected light therefrom is incident to an optical filter, and the image of transmitted light therefrom is picked up by a TV camera. The video output of the TV camera is mixed, by a video mixer, with a video signal of the image to be added with the optical effect.

REFERENCES:
patent: 2073370 (1937-03-01), Goldsmith et al.
patent: 3617630 (1971-11-01), Reiffel
patent: 3736377 (1973-05-01), Warren, Jr. et al.
patent: 4045815 (1977-08-01), Griffith et al.

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