Camera in which focus is detected to a plurality of viewfields w

Details Camera in which focus is detected to a plurality of viewfields w Camera in which focus is detected to a plurality of viewfields w

1994-09-28

1995-06-06

Adams, Russell E.

354410, 354 62, 354219, G03B 300, G03B 2900, G03B 1336

Patent

active

054227003

ABSTRACT:
A camera in which focus is detected for a plurality of viewfields within a selected observation block includes observation structure for observing an object therethrough, and visual axis detecting structure for detecting the position of the visual axis of an observer's eye. A plurality of observation blocks are defined, each block having a plurality of detection viewfields. Structure is provided for selecting one of the blocks in accordance with a result of the detection of the visual axis detecting structure. Focus detection circuitry is provided for performing a focus detection operation with respect to the detection viewfields which are included within the selected observation block. Circuitry is also provided for forming a focus adjustment signal for an objective lens on the basis of the detection information of the focus detection circuitry regarding the detection viewfields of the selected observation block.

REFERENCES:
patent: 4574314 (1986-03-01), Weinblatt
patent: 4954701 (1990-09-01), Suzuki et al.
patent: 5036347 (1991-07-01), Tsunekawa et al.
patent: 5151583 (1992-09-01), Tokunaga
patent: 5182443 (1993-01-01), Suda et al.
patent: 5239337 (1993-08-01), Takagi et al.

Affiliated with

Also associated with

Rating

Camera in which focus is detected to a plurality of viewfields w does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Camera in which focus is detected to a plurality of viewfields w, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Camera in which focus is detected to a plurality of viewfields w will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-991332