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. 07, 2006
Filed:
Apr. 21, 2003
Myung-bok Lee, Kyungki-do, KR;
Jin-seung Sohn, Seoul, KR;
Eun-hyoung Cho, Kyungki-do, KR;
Young-pil Park, Seoul, KR;
Myung-bok Lee, Kyungki-do, KR;
Jin-seung Sohn, Seoul, KR;
Eun-hyoung Cho, Kyungki-do, KR;
Young-pil Park, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon, KR;
Abstract
A planar lens capable of compensating for chromatic aberration and which is easy to manufacture and enables easy assembling of optical pickups and a method for fabricating the planar lens are provided. The planar lens includes a transparent substrate with a lens cavity in a surface of the transparent substrate, and a lens element formed in the lens cavity with a first refracting surface in contact with the bottom of the lens cavity and a second diffracting surface having a diffraction grating opposite to the first refracting surface.