Photometering lens for SLR camera and adjusting of photometering

Details Photometering lens for SLR camera and adjusting of photometering Photometering lens for SLR camera and adjusting of photometering

1998-07-15

1999-10-19

Perkey, W. B.

Photography

Having photocell at specific position within camera

In viewfinder area

G03B 7099, G03B 4300

Patent

active

059702630

ABSTRACT:
In a photometering lens for an SLR camera in which object light transmitted through a finder screen and emitted from a reflecting optical member is received by a light measuring receiver, wherein the photometering lens has a light path for illumination light upon assembling the light measuring receiver, said illumination light being applied from said reflecting optical member toward the light measuring receiver, and wherein the position of said light measuring receiver is determined in accordance with an image of the light measuring receiver formed on the finder screen. An adjusting method of a photometering device having a photometering lens to adjust the position of the light measuring receiver is also disclosed.

REFERENCES:
patent: 3690241 (1972-09-01), Nomura
patent: 4019191 (1977-04-01), Miyata
patent: 4626918 (1986-12-01), Morisawa
patent: 5497229 (1996-03-01), Sensui et al.
patent: 5585885 (1996-12-01), Muramatsu

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