Effects of fabrication errors in the diffractive optical element on the modulation transfer function of a hybrid lens

Hyun Choi; Wan Chin Kim; Sang Hyuck Lee; No Cheol Park; Und Young Pil Park

doi:10.1364/JOSAA.25.002764

Effects of fabrication errors in the diffractive optical element on the modulation transfer function of a hybrid lens

Hyun Choi, Wan Chin Kim, Sang Hyuck Lee, No Cheol Park, Und Young Pil Park

Department of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

Diffractive optical elements (DOEs) are often used to improve the performance of optical systems. However, when a blazed DOE is machined, shape errors can be generated in the discontinuity region of the DOE due to the finite radius of the processing tool. We simulated the effects of this shape error on the optical path and modulation transfer function (MTF) in a hybrid lens for a compact camera module. The decrease rate of the MTF was larger in the low-spatial-frequency domain and when the light entered at a low incident angle.

Original language	English
Pages (from-to)	2764-2766
Number of pages	3
Journal	Journal of the Optical Society of America A: Optics and Image Science, and Vision
Volume	25
Issue number	11
DOIs	https://doi.org/10.1364/JOSAA.25.002764
Publication status	Published - 2008 Nov 1

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Computer Vision and Pattern Recognition

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10.1364/JOSAA.25.002764

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abstract = "Diffractive optical elements (DOEs) are often used to improve the performance of optical systems. However, when a blazed DOE is machined, shape errors can be generated in the discontinuity region of the DOE due to the finite radius of the processing tool. We simulated the effects of this shape error on the optical path and modulation transfer function (MTF) in a hybrid lens for a compact camera module. The decrease rate of the MTF was larger in the low-spatial-frequency domain and when the light entered at a low incident angle.",

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Effects of fabrication errors in the diffractive optical element on the modulation transfer function of a hybrid lens. / Choi, Hyun; Kim, Wan Chin; Lee, Sang Hyuck; Park, No Cheol; Park, Und Young Pil.

In: Journal of the Optical Society of America A: Optics and Image Science, and Vision, Vol. 25, No. 11, 01.11.2008, p. 2764-2766.

Research output: Contribution to journal › Article › peer-review

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AU - Lee, Sang Hyuck

AU - Park, No Cheol

AU - Park, Und Young Pil

PY - 2008/11/1

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AB - Diffractive optical elements (DOEs) are often used to improve the performance of optical systems. However, when a blazed DOE is machined, shape errors can be generated in the discontinuity region of the DOE due to the finite radius of the processing tool. We simulated the effects of this shape error on the optical path and modulation transfer function (MTF) in a hybrid lens for a compact camera module. The decrease rate of the MTF was larger in the low-spatial-frequency domain and when the light entered at a low incident angle.

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Effects of fabrication errors in the diffractive optical element on the modulation transfer function of a hybrid lens

Abstract

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