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:
Jun. 02, 1981
Filed:
Jun. 18, 1979
Applicant:
Inventor:
Atsuo Goto, Tachikawa, JP;
Assignee:
Olympus Optical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350480 ; 350410 ; 350414 ;
Abstract
An objective for video disks comprising a first and second lens components, the first lens component being a positive cemented doublet, the second lens component being a positive meniscus lens, the objective for video disks being very light in weight and having aberrations such as spherical aberration, sine condition, etc. which are corrected favourably.