Focus detecting device

Details Focus detecting device Focus detecting device

1984-06-20

1986-01-28

Perkey, William B.

G03B 300

Patent

active

045667730

ABSTRACT:
A focus detecting device with two optical systems for measuring an object distance, having their optical axes separated at a base line length. One of the axes lies within a photographic objective lens system and the other lies outside of it. The optical axis of the former is offset from the optical axis of the photographic lens system in a direction away from the optical axis of the latter.

REFERENCES:
patent: 3856399 (1974-12-01), Hosoe et al.
patent: 4150888 (1979-04-01), Filipovich
patent: 4357085 (1982-11-01), Niwa et al.

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