Optical lens set
An optical lens assembly includes a first lens of positive refractive power, a second lens of refractive power, at least one of the object surface and the image surface being aspherical, a fourth lens of refractive power, a fifth lens of a concave object surface near its optical-axis and both the object surface and the image surface being aspherical so that the Abbe number υ4 of the fourth lens, the Abbe number υ5 of the fifth lens, an air gap G12 between the first lens and the second lens, an air gap G23 between the second lens and the third lens, an air gap G45 between the fourth lens and the fifth lens, the second thickness T2 of the second lens, the third thickness T3 of the third lens, the fourth thickness T4 of the fourth lens, and the fifth thickness T5 of the fifth lens satisfy 18≤υ4−υ5≤50 and (G12+T2+G23+T3+T4+G45+T5)/G34≤6.3.
Genius Electronic Optical (Xiamen) Co., Ltd.
G G G G G
G02B G02B G02B G02B G02B
inventional additional inventional additional additional
Feng Huifeng Guangyun
Chen Pan Li