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:
Jan. 31, 2006
Filed:
Sep. 17, 2003
Seok-il Yoon, Daejeon Metropolitan, KR;
Gyu-hwan Hwang, Hwaseong-gun, KR;
Alexandr F. Shirankov, Pushkino, RU;
Oleg V. Rozhkov, Moscow, RU;
Vadim V. Pozdnyakov, Fryazino, RU;
Alexey M. Khorokhorov, Moscow, RU;
Seok-il Yoon, Daejeon Metropolitan, KR;
Gyu-hwan Hwang, Hwaseong-gun, KR;
Alexandr F. Shirankov, Pushkino, RU;
Oleg V. Rozhkov, Moscow, RU;
Vadim V. Pozdnyakov, Fryazino, RU;
Alexey M. Khorokhorov, Moscow, RU;
Samsung Electronics Co., Ltd., Kyungki-do, KR;
Abstract
A hybrid lens and a projection optical system having the hybrid lens are provided. The projection optical system includes a hybrid lens that is positioned along an optical path between a fluorescent surface and a screen onto which light emitted from the fluorescent surface is projected to form an image. The hybrid lens includes a spherical lens and an aspherical lens formed of plastic on at least one surface of the spherical lens. Accordingly, aberration can be corrected to improve image quality.