Laser & Optoelectronics Progress, Volume. 54, Issue 1, 12204(2017)
Optical Design of Iris Recognition Lens
An iris recognition lens composed of three plastic aspheric lens for mobile phone application is designed. The pixel size of focal-plan array detector complementary metal oxide semiconductor (CMOS) chip is 1.12 μm. The F number of the designed lens is 2.0, the field of view is 32.6°, and the total length is 4.0 mm. At the optimal work distance of 320 mm, the modulation transfer functions (MTF) of all fields at 1/2 Nyquist frequency are larger than 0.45, the optical distortion is less than 1.2%, and the relative illumination is higher than 87%. The optical system has the advantages of simple structure, small volume and excellent image quality.
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Gao Yongfeng, Zhang Bian, Song Guanghui, Xiong Peng, Zhu Jiawei, Xu Xiaofang. Optical Design of Iris Recognition Lens[J]. Laser & Optoelectronics Progress, 2017, 54(1): 12204
Category: Optical Design and Fabrication
Received: Aug. 23, 2016
Accepted: --
Published Online: Jan. 17, 2017
The Author Email: Yongfeng Gao (absgyf69@163.com)