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.

Patent No.:

US 9503676 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 22, 2016

Filed:

Sep. 08, 2015
Applicant:

Fujifilm Corporation, Tokyo, JP;

Inventor:

Mamoru Miyashita, Saitama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 15/48 (2006.01); G11B 5/584 (2006.01); G11B 15/18 (2006.01); G11B 17/00 (2006.01); G11B 19/02 (2006.01); G11B 5/02 (2006.01); H04N 5/7826 (2006.01); G01B 7/30 (2006.01); G11B 5/008 (2006.01); H04N 5/78 (2006.01); G01D 5/249 (2006.01); G02B 7/10 (2006.01);
U.S. Cl.
CPC ...
H04N 5/7826 (2013.01); G01B 7/30 (2013.01); G11B 5/00839 (2013.01); G01D 5/249 (2013.01); G02B 7/102 (2013.01); G11B 5/00817 (2013.01);
Abstract

In a magnetic recording scalefixed to an outer periphery of a rotary tubewhich rotates around an optic axis depending on the movement of a zoom lens, a plurality of recording sectionand recording sectionpairs are provided in the rotational direction. A recording sectionhas a width less than a width of a recording section. The recording sectionis recorded with code information indicating a position in the magnetic recording scale, and the recording sectionis recorded with a magnetic signal for detecting the recording sectionadjacent thereto. A lens position detecting unitdetects a position of the zoom lens based on the code information and then detects a position of the zoom lens based on the detected code information.


Find Patent Forward Citations

Miyashita, Mamoru. (2016). Lens device and position detection method of movable optical element (U.S. Patent No. 9503676). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9503676

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

Loading…