Distance meter and an apparatus having a distance meter

Details Distance meter and an apparatus having a distance meter Distance meter and an apparatus having a distance meter

1998-07-06

2000-04-04

Perkey, W. B.

Photography

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

Processing circuit

356 314, 2502018, G03B 1336

Patent

active

060471360

ABSTRACT:
An apparatus includes a detecting device provided with a first sensor having an arrayed pixels and a second sensor having an arrayed pixels, a selector for selecting predetermined pixels within the first and second sensors, a controller for controlling the selector so that, in a first situation, selected pixels of the first sensor is fixed and selected pixels of the second sensor is shifted by one pixel, and, in a subsequent second situation, selected pixels of the second sensor is fixed and selected pixels of the first sensor is shifted by one pixel, and a calculator for calculating correlation based on the outputs from the selected pixels, and calculates an object distance based on the calculated correlation.

REFERENCES:
patent: 4636624 (1987-01-01), Ishida et al.
patent: 5134526 (1992-07-01), Inabata
patent: 5155347 (1992-10-01), Nishibe

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