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.:
Date of Patent:
Sep. 30, 2014
Filed:
Jan. 15, 2014
Hoya Corporation, Tokyo, JP;
Hiroshi Nomura, Saitama, JP;
Shinya Suzuka, Saitama, JP;
Hoya Corporation, Tokyo, JP;
Abstract
An electrical drive device for a bending photographing optical system, the bending photographing optical system including a movable optical element that is movable in an optical axis direction and a reflection optical element positioned on the optical axis, the electrical drive device includes a motor provided with a leadscrew which extends therefrom in a direction parallel to the optical axis and drives the movable optical element to move in a direction of the optical axis. The leadscrew includes a threaded portion which screw-engages with a nut member provided on the movable optical element, and a small-diameter portion having a smaller diameter than that of the threaded portion, the small-diameter portion being positioned beside a side surface of the reflection optical element.