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:
Dec. 27, 2005
Filed:
Nov. 22, 2004
Satoshi DO, Saitama, JP;
Satoshi Do, Saitama, JP;
Satoshi Do and Milestone Co., Ltd., Saitama, JP;
Abstract
The present invention is an imaging lens in which various aberrations are favorably corrected, the optical length is short, and a sufficient back focus is secured. The imaging lens is constituted by arranging a first lens L, an aperture diaphragm S, a second lens L, and a third lens Lin succession from the object side to the image side. The first lens Lis a lens having a positive refractive power and a meniscus shape in which the convex surface faces the object side, the second lens Lis a lens having a negative refractive power and a meniscus shape in which the convex surface faces the image side, and the third lens Lis a lens in which the convex surface faces the object side.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile