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:
May. 04, 2010
Filed:
Aug. 07, 2008
Hitoshi Nakanishi, Kanangawa, JP;
Hitoshi Nakanishi, Kanangawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
In an image pickup lenscomposed three glass lenses, the glass lenses are composed of a first lens Lhaving a convex surface facing a subject side and positive refracting power, an aperture S, a second lens Lhaving a convex surface facing an image side and negative refracting power, and a third lens Lhaving a concave surface facing the image side and positive refracting power which are disposed sequentially from the subject side as well as all the lens surfaces are composed of aspheric surfaces and the following conditional formulas (A0) and (A1) are satisfied.2<−0.9  (A0)2<|21+22|/|21−22|<5  (A1) With this arrangement, there is provided a compact and less expensive image pickup lens having a good optical performance and used to a solid image pickup device and an image pickup device using the image pickup lens.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile