Optical design for fingerprint identification with asymmetrical aspheric lens

Chi Feng Chen, Han Chung Hsu, Hsiao Fang Lin, Lea Ming Lu, James T. Wang

研究成果: 書貢獻/報告類型會議論文篇章同行評審

摘要

The optical design of optical prism with aspheric lens for fingerprint identification is researched. We propose a new structure for optical prism of fingerprint identification, which has an asymmetrical aspheric lens on the output plane. It is numerically shown under point approximate model that the optical properties of such prism are better than one of optical prism with aspheric lens. When the fingerprint range is 16 √2 mm, the results show that the image contrast of our proposed prism is above 0.5 and the minimum image contrast for optical prism with aspheric lens is only 0.2.

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主出版物標題AD'07 - Proceedings of Asia Display 2007
頁面1886-1891
頁數6
出版狀態已出版 - 2007
事件Asia Display 2007, AD'07 - Shanghai, China
持續時間: 12 3月 200716 3月 2007

出版系列

名字AD'07 - Proceedings of Asia Display 2007
2

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???event.eventtypes.event.conference???Asia Display 2007, AD'07
國家/地區China
城市Shanghai
期間12/03/0716/03/07

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