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. 22, 2013
Filed:
Mar. 29, 2011
Applicant:
Takayoshi Suganuma, Saitama, JP;
Inventor:
Takayoshi Suganuma, Saitama, JP;
Assignee:
Enplas Corporation, Saitama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 7/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed is an optical apparatus that allows a target pattern to be imaged adequately at low cost and allows the apparatus to be miniaturized. With this optical apparatus (), light L output from one light source () is collimated through a collimation lens () and divided into first light beams Land Lby a diffractive optical element (), and, by a computer-generated hologram (), first light beams Land Lare each divided into second light beams L, L, Land L, and these second light beams L, L, Land Lform a guide pattern whereby whether or not a focused state is achieved cane be decided.