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:
Feb. 14, 2017
Filed:
May. 10, 2013
Pioneer Corporation, Kanagawa, JP;
National Center for Child Health & Development, Tokyo, JP;
Yoshiyuki Okuda, Kanagawa, JP;
Hiroshi Yokota, Kanagawa, JP;
Toshio Chiba, Tokyo, JP;
Hiromasa Yamashita, Tokyo, JP;
PIONEER CORPORATION, Kanagawa, JP;
NATIONAL CENTER FOR CHILD HEALTH AND DEVELOPMENT, Tokyo, JP;
Abstract
The object lensand the ocular lensare disposed in the lens barrel unitand the relay lens systemis disposed therebetween. The image sensoris disposed in the camera unitand the coaxial illumination unitis disposed therearound. The focus position shift memberis disposed at the image formation position Lin the lens barrel unit. The light from the coaxial illumination unitis imaged at the image formation position Land is shifted to a position Lby the focus position shift member. Since the position Lpositions at a position closer than a focus position, light through the object lensdiffuses to illuminate the object