Truncated Schmidt optical systems for projecting color televisio

Details Truncated Schmidt optical systems for projecting color televisio Truncated Schmidt optical systems for projecting color televisio

1975-12-12

1977-01-18

Griffin, Robert L.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358239, H04N 574, H04N 931

Patent

active

040040933

ABSTRACT:
A plurality of Schmidt optical systems is clustered together by truncating mutually adjacent edges of mirrors and correcting lenses which comprise individual Schmidt systems. By clustering individual systems together, keystone distortion is minimized.

REFERENCES:
patent: 1124253 (1915-01-01), Audibert
patent: 2999126 (1961-09-01), Harries et al.

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