Coupling system for image projection

Details Coupling system for image projection Coupling system for image projection

1984-07-26

1988-03-01

Groody, James J.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358 60, 358247, 358252, H04N 574

Patent

active

047290315

ABSTRACT:
In a video projector for projecting a video picture displayed on a Braun tube, the space between the Braun tube and a lens is filled with a medium having a refractive index substantially equal to those of both the glass faceplate of the braun tube and the material of the lens, and the medium is a silicon resin of the mixture of two liquids which is in liquid phase just after the mixing of two or three or above liquids but cured after lapse of a certain time into a gel state, and the lens is supported by a lens holder so that it can be moved freely along the optical axis within the lens holder.

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patent: 4612582 (1986-09-01), Tucker
patent: 4621294 (1986-11-01), Lee
Kirk-Othmer, Encyclopedia of Chemical Technology, vol. 20, Oct. 31, 1983, pp. 940-957.

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