Focus detecting device

Details Focus detecting device Focus detecting device

1990-07-26

1992-01-28

Adams, Russell E.

G03B 1336

Patent

active

050847236

ABSTRACT:
The focus detecting device comprises a primary imaging optical system, a focus detecting optical system, an aperture stop, deflection prisms and a photoelectrc transducing member which are arranged on an optical axis in the order from the object side. This focus detecting device is capable of having a wide focus detecting field angle, a high imaging magnification and a high focus detecting accuracy in addition to a short total length and favorable functions to correct aberrations.

REFERENCES:
patent: 4220406 (1980-09-01), Schaefer
patent: 4408853 (1983-10-01), Tokutomi et al.
patent: 4560863 (1985-12-01), Matsumura et al.
patent: 4698492 (1987-10-01), Ohtaka et al.
patent: 4699493 (1987-10-01), Koyama et al.
patent: 4745426 (1988-05-01), Suda et al.
patent: 4825239 (1989-04-01), Suda et al.
patent: 4841326 (1989-06-01), Koyama et al.

Affiliated with

Also associated with

Rating

Focus detecting device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Focus detecting device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Focus detecting device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1863496