The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 09, 1996

Filed:

Feb. 04, 1994
Applicant:
Inventor:

Ki-yong Kim, Kunpo, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
354409 ; 35419513 ;
Abstract

A lens focus control apparatus and method for use in a camera optical system and which is manually manipulated by a user, includes a lens position detector for detecting current positions of a focus lens and a zoom lens, a memory for storing a movable region value of the focus lens, a current position value of the focus lens and a contrast ratio value therein, and a display. The display indicates the current position of the focus lens, the range of movement of the focus lens, and the movement direction in the movable region of the focus lens. A microcomputer controls the above elements to adjust an exact focus and to display an exact focus direction using the contrast ratio value.


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Kim, Ki-yong. (1996). Lens focus control apparatus (U.S. Patent No. 5506654). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5506654

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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