Patent №
US 4,843,415
Granted
1989-06-27
Filed 1987
Owner
MINOLTA CAMERA KABUSHIKI KAISHA, C/O OSAKA KOKUSAI BUILDING, 30, 2-CHOME, AZUCHI-MACHI, HIGASHI-KU, OSAKA-SHI, OSAKA-FU, JAPAN
Lab
—
AI components
1
vision
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
07099725
An automatic focus detection system for use in a camera system comprises focus detecting unit having one light receiving element corresponding to, in an objective field, a focus detection area whose center is deviated from the optical axis of the objective lens, the position of the focus detection area being changed in accordance with the change of the focal length of the objective lens; and a light projecting unit for projecting light towards the object field so that the region of the projected light covers the focus detection area, if the position of the focus detection area is changed in accordance with the change of the focal length of the objective lens.
AI classification
Ownership
MINOLTA CAMERA KABUSHIKI KAISHA, C/O OSAKA KOKUSAI BUILDING, 30, 2-CHOME, AZUCHI-MACHI, HIGASHI-KU, OSAKA-SHI, OSAKA-FU, JAPAN
assignment · 47880136
Assignors
MATSUI, TORU, UEDA, HIROSHI
On an employer assignment, the assignors are typically the inventors.