Camera

Details Camera Camera

1988-07-11

1989-05-23

Perkey, W. B.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

354465, 354286, 358225, G03B 720, G03B 1718, H04N 5235

Patent

active

048334987

ABSTRACT:
This invention is based on the discovery of the fact that a proportional relationship exits between a reciprocal of an exit pupil of a photographic lens and an error in light measurement value and provides a camera which is characterized by the provision of means for measuring light of a beam passing through a photographic lens into the camera and deciding an exposure value, means for generating an information corresponding to the reciprocal of the exit pupil of the photographic lens and means for applying correction to said exposure value on the basis of the information generated by said information generating means.

REFERENCES:
patent: 4529288 (1985-07-01), Nakai et al.

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