Measurement device

Details Measurement device Measurement device

1998-05-26

2000-06-27

Perkey, W. B.

Photography

With exposure objective focusing means, focusing aid, or...

Reliability of focus/distance signal

396121, G03B 1336

Patent

active

060816724

ABSTRACT:
A rangefinder provides a rangefinding optical system, and photoreception unit including a pair of photoelectric conversion element arrays, and outputs signals corresponding to the light received by the photoelectric conversion element arrays. The controller allocates the output signals o a plurality of areas, and stores signals included within a single allocated area in memory. The memory has a storage capacity sufficient only to store the allocated data. Data relating to the distance to a rangefinding object are determined by calculations using the data stored in memory.

REFERENCES:
patent: 4636624 (1987-01-01), Ishida et al.
patent: 5485004 (1996-01-01), Suzuki et al.
patent: 5784655 (1998-07-01), Akashi et al.
patent: 5825016 (1998-10-01), Nagahata et al.

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