Patent Number: 7,826,150

Title: Optical lens

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 MgF.sub.2 coating formed the central optical, the peripheral portion being free of MgF.sub.2 coating 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 MgF.sub.2 coating is one quarter of the wavelength of the predetermined light.

Inventors: Huang; Yi-Mou (Taipei Hsien, TW), Lee; Hsin-Ho (Taipei Hsien, TW), Chien; Yang-Chang (Taipei Hsien, TW), Tung; Tsai-Shih (Taipei Hsien, TW), Ling; Wei-Cheng (Taipei Hsien, TW), Yuan; Kun-I (Taipei Hsien, TW)

Assignee: Hon Hai Precision Industry Co., Ltd.

International Classification: G02B 3/00 (20060101); G02B 9/02 (20060101); G02B 5/28 (20060101)

Expiration Date: 2019-11-02 0:00:00