Wide-angle lens

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9696520
SERIAL NO

14875835

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Abstract

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A wide-angle lens, from an object side to an image side along an optical axis, includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens and a ninth lens. The first, second and third lens are with negative refractive power. The fourth, fifth, sixth and seventh lens are with refractive power. The eighth lens is a biconvex lens with positive refractive power. The ninth lens is a biconvex lens with positive refractive power. The first lens, the second lens and the third lens satisfy: −261/f2/f3/f<−3 and −1.64123/f<−1.6 wherein f1 and f2 are effective focal lengths of the first and second lenses, f3 and f are an effective focal lengths of the third lens and the wide-angle lens, and f123 is an effective focal length of the combination of the first lens, second lens and third lens.

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Patent Owner(s)

Patent OwnerAddress
AO ETHER CORPORATIONNO 69 ANHE RD TANZI DIST TAICHUNG CITY 42754
SINTAI OPTICAL (SHENZHEN) CO LTDBLDG 1ST 2ND 3RD QUWEI IND ESTATE LI-SONG-LANG IND DIST GUANG MING NEW ZONE SHENZHEN GUANGDONG

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lee, Tsan-Haw Taichung, TW 11 25
Liang, Yuan-Fan Taichung, TW 9 30

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