Mr. Wei-Jei Peng Profile

Wei-Jei Peng

Associate Researcher at Taiwan Instrument Research Institute

SPIE Involvement:

Author

Area of Expertise:

Image optics , Illumination optics , Optical instruments design , Projection design , Optical metrology

Websites:

Company Website

Profile Summary

Mr. Wei-Jei Peng is currently an associate researcher in National Applied Research Laboratories (NARLabs), Taiwan Instrument Research Institute (TIRI) of Taiwan. He received his M.S. in Department of Optics and Photonics from National Central University in 2005. His research interests are in the area of image optics, illumination optics, optical instruments design, projection design, and optical metrology.

Publications (21)

Proceedings Article | 15 August 2023 Poster + Paper

Poster + Paper

Optical design of refractive imaging spectrometer for semiconductor metrology

Wei-Jei Peng, Ming-Fu Chen, Tsung-Xian Lee

Proceedings Volume 12618, 1261821 (2023) https://doi.org/10.1117/12.2672269

KEYWORDS: Spectral resolution, Spectroscopy, Spectrographs, Distortion, Lens design, Blazed gratings, Diffraction gratings, Monochromatic aberrations, Optical design, Line scan image sensors

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Proceedings Article | 10 October 2020 Poster + Paper

Poster + Paper

Design and fabrication of an ultra-thin under-display fingerprint sensor

Wen-Shing Sun, Wei-Jei Peng, Jhe-Syuan Lin, Yuan-Chieh Cheng, Ming-Fu Chen

Proceedings Volume 11548, 115481G (2020) https://doi.org/10.1117/12.2573621

KEYWORDS: Sensors, Fingerprint recognition, Cameras, LCDs, Organic light emitting diodes, Modulation transfer functions, Distortion, Prototyping, FT-IR spectroscopy, OLED lighting

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Proceedings Article | 23 March 2020 Paper

Paper

Design and fabrication of microlens array homogenizer for laser beam shaping using two-photon polymerization

Hua-Yi Ni, Chien-Chung Fu, Wei-Jei Peng, Ting-Ming Huang, Jia-Rong Wu, Ming-Fu Chen

Proceedings Volume 11324, 1132416 (2020) https://doi.org/10.1117/12.2551987

KEYWORDS: Microlens array, Two photon polymerization, Homogenization, Laser processing, Optical simulations, Diffusers, Medical laser equipment, Laser applications, Laser based displays, Laser drilling

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Proceedings Article | 17 February 2020 Presentation + Paper

Presentation + Paper

Development of miniature wide-angle lens for in-display fingerprint recognition

Wei-Jei Peng, Yuan-Chieh Cheng, Jhe-Syuan Lin, Ming-Fu Chen, Wen-Shing Sun

Proceedings Volume 11231, 1123108 (2020) https://doi.org/10.1117/12.2545463

KEYWORDS: Fingerprint recognition, Sensors, Distortion, Cameras, Modulation transfer functions, Cell phones, Glasses, Ultrasonics, Organic light emitting diodes, Reflection

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Proceedings Article | 15 June 2018 Paper

Paper

Fabrication and measurement of freeform mirror for head-up display system

Yuan-Chieh Cheng, Wei-Jei Peng , Fong-Zhi Chen, Hsiao-Yu Chou, Abou-El-Hossein Khaled

Proceedings Volume 10692, 106920Q (2018) https://doi.org/10.1117/12.2311992

KEYWORDS: Heads up displays, Mirrors, Servomechanisms, Optics manufacturing, Freeform optics, Manufacturing, Off axis mirrors, Surface finishing, Head, Diamond turning

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Proceedings Article | 22 February 2018 Paper

Paper

Multiple-aperture optical design for micro-level cameras using 3D-printing method

Wei-Jei Peng, Yuan-Chieh Cheng, Wen-Lung Lin, Chien-Chung Fu, Hsiao-Yu Chou, Chong-Syuan Wu, Chao-Tsung Huang, Wei-Yao Hsu, Zong-Ru Yu, Fong-Zhi Chen

Proceedings Volume 10539, 1053919 (2018) https://doi.org/10.1117/12.2289445

KEYWORDS: Modulation transfer functions, Optical design, Lenses, Image sensors, CMOS sensors, Spatial resolution, Image resolution, Cameras, Lens design, Distortion

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Proceedings Article | 22 February 2018 Presentation + Paper

Presentation + Paper

A portable non-contact displacement sensor and its application of lens centration error measurement

Zong-Ru Yu, Wei-Jei Peng, Jung-Hsing Wang, Po-Jui Chen, Hua-Lin Chen, Yi-Hao Lin, Chun-Cheng Chen, Wei-Yao Hsu, Fong-Zhi Chen

Proceedings Volume 10539, 1053917 (2018) https://doi.org/10.1117/12.2289375

KEYWORDS: Sensors, Laser sources

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Proceedings Article | 16 October 2017 Paper

Paper

Fabrication and correction of freeform surface based on Zernike polynomials by slow tool servo

Yuan-Chieh Cheng, Ming-Ying Hsu, Wei-Jei Peng , Wei-Yao Hsu

Proceedings Volume 10448, 1044813 (2017) https://doi.org/10.1117/12.2279270

KEYWORDS: Servomechanisms, Zernike polynomials, Optics manufacturing, Freeform optics, Manufacturing, Surface finishing, Diamond, Diamond turning, Diamond machining, Optical design

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Proceedings Article | 23 August 2017 Presentation + Paper

Presentation + Paper

Contact lens design with slope-constrained Q-type aspheres for myopia correction

Wei-Jei Peng, Yuan-Chieh Cheng, Wei-Yao Hsu, Zong-Ru Yu, Cheng-Fang Ho, Khaled Abou-El-Hossein

Proceedings Volume 10375, 103750T (2017) https://doi.org/10.1117/12.2273520

KEYWORDS: Aspheric lenses, Lens design, Visualization, Spherical lenses, Interferometers, Monochromatic aberrations, Eye models, Optical spheres, Contact lenses, Retina

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Proceedings Article | 22 August 2017 Paper

Paper

Self-compensation for trefoil aberration of symmetric dioptric microlithographic lens

Wei-Jei Peng, Cheng-Fang Ho, Wei-Yao Hsu

Proceedings Volume 10377, 103770M (2017) https://doi.org/10.1117/12.2273738

KEYWORDS: Wavefronts, Integrated circuits, Image quality, Kinematics, Lithographic lenses, Wavefront compensation

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SPIE Journal Paper | 31 March 2017

Design, tolerance analysis, fabrication, and testing of a 6-in. dual-wavelength transmission sphere for a Fizeau interferometer

Wei-Jei Peng, Cheng-Fang Ho, Wen-Lung Lin, Zong-Ru Yu, Chien-Yao Huang, Ching-Hsiang Kuo, Wei-Yao Hsu

OE, Vol. 56, Issue 03, 035105, (March 2017) https://doi.org/10.1117/12.10.1117/1.OE.56.3.035105

KEYWORDS: Wavefronts, Photovoltaics, Tolerancing, Interferometers, Error analysis, Fizeau interferometers, Zemax, Optical design, Optical spheres, Optical engineering

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Proceedings Article | 31 October 2016 Paper

Paper

Design, assembly, and metrology of an oil-immersion microscope objective with long working distance

Wei-Jei Peng, Wen-Lung Lin, Hui-Jean Kuo, Cheng-Fang Ho, Wei-Yao Hsu

Proceedings Volume 10021, 100211N (2016) https://doi.org/10.1117/12.2246254

KEYWORDS: Objectives, Assembly tolerances, Microscopes, Tolerancing, Point spread functions, Modulation transfer functions, Spatial frequencies, Metrology, Optical design, Optical testing

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Proceedings Article | 31 October 2016 Paper

Paper

Application of Q-type aspheric surface in the design of Wynne-Dyson projection lens

Cheng-Fang Ho, Wei-Jei Peng, Wei-Yao Hsu

Proceedings Volume 10021, 100210J (2016) https://doi.org/10.1117/12.2245713

KEYWORDS: Aspheric lenses, Lithography, Optics manufacturing, Mirrors, Manufacturing, Tolerancing, Interferometers, Optical spheres, Wavefronts, Inspection

Read Abstract +

ITRC dedicates in high precision optics for more than 40 years and focuses in lithography optics for projection system recently. The first project of the lithography optics in ITRC is an i-line Wynne-Dyson projection lens for 3D-ICs applications. The Wynne-Dyson projection lens is a classical design for unity magnification projection system. We take the advantages of the established benefits of Wynne-Dyson lens and modify it. ITRC‘s Wynne-Dyson lens is a 0.16 NA system with unity magnification, which is designed in double telecentricity and long working distance. The projection lens comprises three lenses and one concave mirror. Two aspheric surfaces are deployed in lens 1 and concave mirror. A lens with aspheric surfaces can correct for aberration and deliver a higher performance with fewer lens elements; therefore it has advantages of compact and light. However, aspheres are more difficult to fabricate and higher cost than spherical surface. In order to control the testability and manufacturability of the aspheric surface, the Q-type aspheric surfaces are applied in our design phase and manufacture process. We optimize for both performance and manufacturability by Q-type aspheric surfaces. Not only a testable and manufacturable asphere can be approached but also an additional benefits of less sensitive and cost-effective to manufacture to the required specification. In this paper, the Q-type aspheric surfaces and slope constraint are applied to a Wynne-Dyson projection lens, the testability of Q-type aspheric surfaces by the departure from best-fit-sphere and fringe density of interferometry are estimated. Furthermore, subaperture stitching interferometer system (ASI, from QED technologies) is also applied for testability comparison. The tolerance and sensitivity are also discussed. Finally, the results show a diffraction limit approached lens with testable aspheric surface is designed using Q-type aspheric surface. One of the asphere is 150 m departure from best-fit-sphere in 205 mm clear aperture, that can be tested by subaperture stitching interferometer system (ASI). The alignment tolerance of lens in decenter and tilt can be controlled in the range of ±30 micron and 20 arc-second, respectively.

Proceedings Article | 27 September 2016 Paper

Paper

Mounting of reference surface for a transmission sphere

Wei-Jei Peng, Cheng-Fang Ho, Zong-Ru Yu, Chien-Yao Huang, Ching-Hsiang Kuo, Wei-Yao Hsu

Proceedings Volume 9684, 96840G (2016) https://doi.org/10.1117/12.2242360

KEYWORDS: Optical spheres, Wavefronts, Photovoltaics, Optical mounts, Surface finishing, Prototyping, Monochromatic aberrations, Calibration, Polishing, Optical testing

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Proceedings Article | 12 October 2015 Paper

Paper

Freeform correction polishing for optics with semi-kinematic mounting

Ching-Hsiang Kuo, Chien-Yao Huang, Wei-Jei Peng, Zong-Ru Yu, Cheng-Fang Ho, Ming-Ying Hsu, Wei-Yao Hsu

Proceedings Volume 9633, 963326 (2015) https://doi.org/10.1117/12.2195464

KEYWORDS: Polishing, Surface finishing, Magnetorheological finishing, Photovoltaics, Optical mounts, Kinematics, Directed self assembly, Glasses, Interferometers, Silica

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Proceedings Article | 11 October 2015 Paper

Paper

Optimization of sub-cells orientation for assembly of a high-quality transmission sphere

Wei-Jei Peng, Ching-Hsiang Kuo, Wei-Yao Hsu, Cheng-Fang Ho, Zong-Ru Yu, Chien-Yao Huang

Proceedings Volume 9633, 963315 (2015) https://doi.org/10.1117/12.2195468

KEYWORDS: Wavefronts, Tolerancing, Photovoltaics, Assembly tolerances, Optical spheres, Superposition, Imaging systems, Refractive index, Fizeau interferometers, Interferometers

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Proceedings Article | 3 September 2015 Paper

Paper

Design and tolerance analysis of a transmission sphere by interferometer model

Wei-Jei Peng, Cheng-Fong Ho, Wen-Lung Lin, Zong-Ru Yu, Chien-Yao Huang, Wei-Yao Hsu

Proceedings Volume 9582, 958208 (2015) https://doi.org/10.1117/12.2187759

KEYWORDS: Wavefronts, Optical spheres, Photovoltaics, Tolerancing, Interferometers, Zemax, Calibration, Prototyping, Error analysis, Assembly tolerances

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Proceedings Article | 17 July 2015 Paper

Paper

Effects of various diffuser plates on illumination uniformity for reflective LED module

Po-Li Chen, Chun-Hsiang Liao, Han-Ting Chen, Wei-Jei Peng, Hui-Jean Kuo, Yu-Hsin Lin, Yu-Hsiang Tang, Tsung-Xian Lee

Proceedings Volume 9524, 95241W (2015) https://doi.org/10.1117/12.2189596

KEYWORDS: Reflectivity, Diffusers, Light emitting diodes, LED lighting, Lamps, Light sources and illumination, Data modeling, Optical simulations, Performance modeling, Diffusion

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Proceedings Article | 17 July 2015 Paper

Paper

A portable inspection system to estimate direct glare of various LED modules

Po-Li Chen, Chun-Hsiang Liao, Han-Ting Chen, Yu-Hsin Lin, Yu-Hsiang Tang, Wei-Jei Peng, Hui-Jean Kuo, Tsung-Xian Lee, Hung-Chung Li, Pei-Li Sun, Shyh-Jye Jou

Proceedings Volume 9524, 95241X (2015) https://doi.org/10.1117/12.2189599

KEYWORDS: Image segmentation, Light emitting diodes, Inspection, Light sources and illumination, Light sources, Visualization, High dynamic range imaging, RGB color model, Optical inspection, Calibration

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Proceedings Article | 12 September 2014 Paper

Paper

Freeform mirror for illumination system of color-sequential LCOS pico projector

Wei-Jei Peng, Chun-Chieh Chen, Chien-Yao Huang, Wei-Yao Hsu

Proceedings Volume 9193, 91930Y (2014) https://doi.org/10.1117/12.2060508

KEYWORDS: Mirrors, Light emitting diodes, Pico projectors, Liquid crystal on silicon, Distortion, Relays, Stray light, Tolerancing, Lens design, Optical alignment

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Proceedings Article | 7 September 2013 Paper

Paper

Freeform surface machining error compensation method for ultra-precision slow tool servo diamond turning

Chun-Chieh Chen, Chien-Yao Huang, Wei-Jei Peng, Yuan-Chieh Cheng, Zong-Ru Yu, Wei-Yao Hsu

Proceedings Volume 8838, 88380Y (2013) https://doi.org/10.1117/12.2022981

KEYWORDS: Servomechanisms, Diamond turning, Diamond, Error analysis, Spindles, Diamond machining, 3D modeling, Surface roughness, Freeform optics, Aspheric lenses

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Showing 5 of 21 publications

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