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:
Oct. 20, 2009
Filed:
Jun. 12, 2003
Kazunari Tokuda, Tokyo, JP;
Tadashi Hirata, Tokyo, JP;
Kazunari Tokuda, Tokyo, JP;
Tadashi Hirata, Tokyo, JP;
Olympus Corporation, Tokyo, JP;
Abstract
A compact optical unit which comprises a light emitting section for emitting a light, a first optical element having a first reflecting section for reflecting a light which is emitted from the light emitting section, a second optical element having a second reflecting section which is disposed to face the first optical element, and a light condensing optical system for condensing a light is formed. The first reflecting section and the second reflecting section are disposed so as to be diagonal to an optical axis of a light which is incident to the first reflecting section and the second reflecting section, a light transmitting section is disposed in the first optical element for transmitting a light which is reflected by the second reflecting section so as to be incident to the light condensing optical system. By disposing the optical element such that a light beam is incident diagonally; therefore, it is possible to propose a compact optical unit having a high SN ratio which can be assembled easily by using a member for supporting the optical unit highly precisely.