| 摘要 |
Disclosed is an improvement in an automatic focusing system for use with an optical instrument having a focusable objective which is adjustable in response to optical and electronic components of the system for determining object distance of a remote subject by comparing images of scanning and reference optical systems. The scanner of the optical system is driven oscillatably across an angle to detect a subject between infinity and the minimum focus condition of the objective lens. The scanner is adjustable in response to the focus condition of the lens for alignment of the angle scanned with the subject when the lens is in perfect focus by means of an electronic and mechanical interconnecting feedback between the lens focusing ring and the aiming device for the scanning system.
|
