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:
Nov. 02, 2010
Filed:
Mar. 26, 2009
Yi-mou Huang, Taipei Hsien, TW;
Hsin-ho Lee, Taipei Hsien, TW;
Yang-chang Chien, Taipei Hsien, TW;
Tsai-shih Tung, Taipei Hsien, TW;
Wei-cheng Ling, Taipei Hsien, TW;
Kun-i Yuan, Taipei Hsien, TW;
Yi-Mou Huang, Taipei Hsien, TW;
Hsin-Ho Lee, Taipei Hsien, TW;
Yang-Chang Chien, Taipei Hsien, TW;
Tsai-Shih Tung, Taipei Hsien, TW;
Wei-Cheng Ling, Taipei Hsien, TW;
Kun-I Yuan, Taipei Hsien, TW;
Hon Hai Precision Industry Co., Ltd., Tu-Cheng, Taipei Hsien, TW;
Abstract
A lens includes a central optical portion, a peripheral portion surrounding the central optical portion, a first ZnS coating formed on the central optical portion and the peripheral portion at one side of the lens, and a first MgFcoating formed the central optical, the peripheral portion being free of MgFcoating formed thereon. The optical thickness of the first ZnS coating is one quarter of a wavelength of predetermined light passing therethrough. The optical thickness of the first MgFcoating is one quarter of the wavelength of the predetermined light.