Exposure-control device on an aerial camera

Details Exposure-control device on an aerial camera Exposure-control device on an aerial camera

G - Physics

03

B

95/45, 95/53.2

G03B 7/08 (2006.01) G03B 7/081 (2006.01)

Patent

CA 1175277

ABSTRACT OF THE DISCLOSURE An exposure-control device on an aerial camera utilizes a permissible shutter time Tperm dependent upon a previously determinable permissible image motion .DELTA.sperm and the value ? as limiting value for fully automatic exposure control dependent on the brightness of the terrain being overflown. The optimum imaging quality produced by the aperture value Bopt is utilized. .DELTA.seff is generally kept smaller than .DELTA.sperm.

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