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:
Jul. 28, 2015
Filed:
Apr. 15, 2013
Panasonic Healthcare Holdings Co., Ltd., Minato-ku, Tokyo, JP;
Akira Sakaguchi, Osaka, JP;
Abstract
An observation apparatus comprising: a beam-splitter including first and second plane-parallel plates respectively having first and second faces and third and fourth faces parallel to one another, and a light-splitting section allowing T % of incident light from a first-and-third-face side to pass therethrough to a second-and-fourth-face side, as transmitted light, while reflecting (100−T) % thereof in a direction parallel with the first to fourth faces as reflected light; and first and second observation optical systems to observe an entire observation target and partially magnify and observe the target, respectively, the first and second plane-parallel plates including light-reducing sections, allowing T % of the incident light to pass therethrough, in areas through which neither the incident nor transmitted light pass, the beam splitter arranged so that the first and third faces oppose the target and the transmitted and reflected lights are guided to the first and second observation optical systems, respectively.