Compact compound-eye imaging module based on the phase diffractive microlens array for biometric fingerprint capturing

doi:10.1364/oe.27.007513

CORC > 长春光学精密机械与物理研究所 > 中国科学院长春光学精密机械与物理研究所

	Compact compound-eye imaging module based on the phase diffractive microlens array for biometric fingerprint capturing
	T.C.Yang; Y.H.Liu; Q.Q.Mu; M.Zhu; D.L.Pu; L.S.Chen; W.B.Huang
刊名	Optics Express
	2019
卷号	27 期号:5 页码:7513-7522
关键词	field-of-view,optics,thin
ISSN号	1094-4087
DOI	10.1364/oe.27.007513
英文摘要	A compound-eye imaging system based on the phase diffractive microlens array as a compact observation module is proposed. As compared with the refractive microlens in common compound-eye imaging systems, the diffractive microlens is a flat imaging optics featuring high relative aperture, thin component thickness and compatibility with lithography techniques. As an application, a compact fingerprint imaging module was demonstrated using this compound-eye imaging system. The phase Fresnel microlens array with continuous trough morphology was fabricated via the self-developed gray-scale laser direct write equipment. An image reconstruction method is proposed by extracting the effective image information of each Fresnel microlens, removing the complex signal separator layer from the compound-eye imaging system. The illumination optics is further planarized through the waveguide backlighting and the waveguide functions as the touch panel for fingerprint recording. The novel compound-eye imaging device length was only restricted by the focal length of the microlens with a low limit of 4.12 f. The applicability of this novel compound-eye imaging system was further demonstrated by recording the human fingerprint texture, paving ways for various applications as a compact imaging system. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
语种	英语
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/62874]
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	T.C.Yang,Y.H.Liu,Q.Q.Mu,et al. Compact compound-eye imaging module based on the phase diffractive microlens array for biometric fingerprint capturing[J]. Optics Express,2019,27(5):7513-7522.
APA	T.C.Yang.,Y.H.Liu.,Q.Q.Mu.,M.Zhu.,D.L.Pu.,...&W.B.Huang.(2019).Compact compound-eye imaging module based on the phase diffractive microlens array for biometric fingerprint capturing.Optics Express,27(5),7513-7522.
MLA	T.C.Yang,et al."Compact compound-eye imaging module based on the phase diffractive microlens array for biometric fingerprint capturing".Optics Express 27.5(2019):7513-7522.