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:
Jan. 01, 1985
Filed:
May. 25, 1982
Masaki Matsubara, Hachiouji, JP;
Olympus Optical Co., Ltd., Tokyo, JP;
Abstract
An image forming lens system comprising a front lens group having a positive refractive power and consisting of a positive lens component and a negative lens component or consisting of a positive lens component and a cemented lens component consisting of a positive lens element and a negative lens element cemented with each other, and a rear lens group having a negative refractive power and being a single lens component or a cemented lens component consisting of a negative lens element and a positive lens element cemented with each other or consisting of a negative lens element and a positive lens element separated from each other. The entire lens system has a positive power and satisfies the conditions necessary for a microscopic objective and can relay an image without impairing the image performance of the objective.