Design of Hybrid Lens for Compact Camera Module Considering Diffraction Effect
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概要
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We introduce the design method of a hybrid lens composed a refractive lens and a diffractive optical element (DOE) considering the diffraction effect for a compact camera module. When imaging optical system is designed using the DOE, diffraction efficiency of the DOE and stray light due to the unintended diffraction light should be considered. Therefore, to analyze the effect of diffraction efficiency of the DOE on image characteristics, we evaluate the performances of two designed compact camera lenses, which have different construction wavelengths, using the modulation transfer function (MTF) considering diffraction efficiency. The stray light that is induced by the diffraction effect of the DOE is analyzed by calculating the focal position according to each diffraction order, and a method for the reduction of the stray light is proposed.
- 2008-08-25
著者
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Park No-cheol
Center For Information Storage Device Yonsei University
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Park Young-pil
Department Of Mechanical Engineering Yonsei University
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Kim Wan-chin
Center For Information Storage Device Yonsei University
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Lee Sang-hyuck
Center For Information Storage Device (cisd) Yonsei University
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Choi Hyun
Department Of Dermatology And Artificial Organ Laboratory Of The Clinical Research Institute Seoul N
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Yoon Yong-joong
Center For Information Storage Device Yonsei University
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Choi Hyun
Department of Mechanical Engineering, Yonsei University, 134 Shinchon-dong, Seodaemun-gu, Seoul 120-749, Korea
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Kim Byungwook
Department of Mechanical Engineering, Yonsei University, 134 Shinchon-dong, Seodaemun-gu, Seoul 120-749, Korea
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Kang Shinill
Department of Mechanical Engineering, Yonsei University, 134 Shinchon-dong, Seodaemun-gu, Seoul 120-749, Korea
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Kang Shinill
Department of Mechanical Engineering, Yonsei University, 134 Shinchon-dong, Seodaemoon-ku, Seoul, Korea
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Park No-Cheol
Center for Information Storage Device, Yonsei University, 134 Shinchon-dong, Seodaemun-gu, Seoul 120-749, Korea
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Lee Sang-Hyuck
Center for Information Storage Device, Yonsei University, 134 Shinchon-dong, Seodaemun-gu, Seoul 120-749, Korea
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Kim Wan-Chin
Center for Information Storage Device (CISD), Yonsei University, 134 Shinchon-Dong, Seodaemoon-Ku, Seoul 120-749, Korea
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Kim Wan-Chin
Center for Information Storage Device, Yonsei University, 134 Shinchon-dong, Seodaemun-gu, Seoul 120-749, Korea
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Yoon Yong-Joong
Center for Information Storage Device, Yonsei University, 134 Shinchon-dong, Seodaemun-gu, Seoul 120-749, Korea
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Park Young-Pil
Department of Mechanical Engineering, Yonsei University, 134 Shinchon-dong, Seodaemun-gu, Seoul 120-749, Korea
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