Picture pick-up and display system and picture pick-up device su

Details Picture pick-up and display system and picture pick-up device su Picture pick-up and display system and picture pick-up device su

1988-05-11

1989-08-15

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

250216, H01J 3150

Patent

active

048577243

ABSTRACT:
Between an image intensifier (II) having a circular radiation exit surface (II2) and an image sensor in the form of a solid state sensor (CTD) with a rectangular picture pick-up surface (PP) there is arranged an optical coupling system (OP) for producing an ellipsoidal picture (EL) of the circular radiation exit surface (II2) within or at least partly around the rectangular picture pick-up surface (PP). A signal correction device (GEN, CTD or PROC, respectively) is provided for compensating the adaptation of the optical coupling system, whilst the sensor may form part of said device (GEN, CTD), said compensation being effected by adapting the clock pulse frequency so that the corrected picture signal produces the image in a circular surface (DIS) on a screen (MIS) of a picture display device (MON).

REFERENCES:
patent: 3715620 (1973-02-01), Marro
patent: 4076978 (1978-02-01), Brennan et al.

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