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:
Mar. 04, 2008
Filed:
Sep. 03, 2004
Moriyasu Kanai, Saitama-ken, JP;
Moriyasu Kanai, Saitama-ken, JP;
PENTAX Corporation, Tokyo, JP;
Optiscan Pty Ltd., Victoria, AU;
Abstract
A condensing optical system, suitable for a scanning confocal optical system (having a composition for scanning a beam spot on a subject surface by swinging a point source of light) and capable of satisfactorily suppressing various aberrations and reducing loss of light quantity, is provided. The condensing optical system, installed in a scanning confocal optical system for obtaining images of a subject surface by scanning a beam emitted from a point source of light by moving the point source which serves as a pinhole for confocal observation, is configured to satisfy the following condition0.1<|<0.2where 'm' denotes magnification of the condensing optical system and 'NA' denotes a numerical aperture of the condensing optical system on its subject surface side.