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. 18, 2011
Filed:
Feb. 25, 2010
Takahiro Okuda, Fukuchiyama, JP;
Takahiro Suga, Fukuchiyama, JP;
Hiroaki Takimasa, Ayabe, JP;
Shinsuke Yamakawa, Nara, JP;
Takahiro Okuda, Fukuchiyama, JP;
Takahiro Suga, Fukuchiyama, JP;
Hiroaki Takimasa, Ayabe, JP;
Shinsuke Yamakawa, Nara, JP;
Omron Corporation, Kyoto, JP;
Abstract
A focused image is taken around the focal point by a confocal displacement meter. In a measurement apparatus, a confocal displacement meter system OPT-A includes a laser diode, a collimator lens, an objective lens, a half mirror, a diaphragm plate, and a photodiode. An observation image imaging system OPT-B is a telecentric light receiving optical system, and the observation image imaging system OPT-B includes a white light source, an objective lens, a dichroic mirror, a diaphragm plate, an image formation lens, and an image sensor. The collimator lensis swept by an oscillatorin a two-headed arrow direction. A diameter of a diaphragm hole of the diaphragm plateis set such that a depth of field of the objective lensis not lower than sweep amplitude of the collimator lens