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:
Apr. 02, 2013
Filed:
Jun. 10, 2010
Kunihiro Hayashi, Itabashi-ku, JP;
Fumihiko Kamizono, Itabashi-ku, JP;
Kunihiro Hayashi, Itabashi-ku, JP;
Fumihiko Kamizono, Itabashi-ku, JP;
Kabushiki Kaisha Topcon, Tokyo, JP;
Abstract
A rotary laser beam emitter includes a base unit including a reference reflector with a reference reflective face parallel to a reference plane, a rotary element rotatably supported on the base unit around a rotary axis, and a beam emitting unit contained in the rotary element and including a light source and an optical emission system emitting the laser beam from the light source in a direction parallel to the reference plane on the optical axis. When the rotary element is inclined relative to the rotary axis and the emitted laser beam is inclined to the reference plane, the optical emission system emits the laser beam from the light source to the reference reflective face and emit the laser beam reflected by the reference reflective face in a direction inclined to the optical axis of the laser beam so as to neutralize the inclined laser beam.