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:
Feb. 14, 2006
Filed:
Oct. 07, 2002
Koji Honda, Hachioji, JP;
Koji Honda, Hachioji, JP;
Konica Minolta Opto, Inc., Tokyo, JP;
Abstract
It is to provide an objective lens for being provided in an optical pickup device for carrying out at least one of a record of information on at least two types of optical information storing media and a reproduction of information from the optical information storing media. In the optical pickup device comprising the first and second light sources, a third-order spherical aberration component of the wavefront aberration caused in a first region that a numerical aperture on the side of the optical information storing medium is not more than NAwhich is required for the record/reproduction, is over. When the standard deviation value of an absolute value thereof is WSA2rms·λthe inequality 0.015≦WSA2rms≦0.06 is satisfied. The light transmitted in the second region that a numerical aperture on the side of the optical information storing medium is over NAbecomes a flare light.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile