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研究生： 吳星佑
Hsing-Yu Wu
論文名稱： 相機鏡頭用於LED手術燈的光學設計
Optical design of camera systems using in LED surgical lighting platform
指導教授： 凱紀德
Gerd Keiser
口試委員: 徐世祥
Shih-Hsiang Hsu
林保宏
Pao-hung Lin
學位類別： 碩士
Master
系所名稱： 電資學院 - 光電工程研究所
Graduate Institute of Electro-Optical Engineering
論文出版年： 2011
畢業學年度： 99
語文別： 英文
論文頁數： 89
中文關鍵詞： 光學設計 、光學 、鏡頭 、系統 、相機 、手術燈 、通訊
外文關鍵詞： optics, surgical, photonics, zemax, OSLO, Code V
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  •  上一筆

    • 醫療儀器逐漸開始受到重視,在本文中,描述了手術燈,手術燈相機與光纖網路的介紹,並展示利用光學設計的方法設計出相機鏡頭.

    Due to conflictions during surgical processes, a camera system combines with a surgical light becoming necessary to record a proof to solve these problems. Moreover, thanks to wire and wireless communication devices’ functionality, we can also storage and transmit any recorded information for future medical education. However, it is hard to capture an image if there is only one camera system because of obstructions. In order to improve image acquisition during a surgical process, the idea of three camera systems was presented in this thesis.

    Three lens systems for a camera include in order an object side to the image side a first lens, a second lens, a third lens and a fourth lens. The first lens has an aspheric front and back surface, the second lens has an aspheric front and back surfaces, the stop, the third lens has an aspheric front and back surfaces, the fourth lens has an aspheric front and back surface, and an IR-cutting filter. They are shown in this thesis.

    Table of Contents Acknowledgements……………………………………………………………………….I Abstract…………………………………………………………………………………III List of illustrations List of Tables 1. Introduction…………………………………………………………………1 1.1 Overview and motivation……………………………………………1 1.2 Organization of the thesis…………………………………………3 2. Theory ………………………………………………………………4 2.1 Snell’s law……………………………………………………………4 2.2 Cardinal points. ……………………………………………………4 2.3 Sign conventions……………………………………………………5 2.4 Image position and size…………………………………………6 2.5 The paraxial region………………………………………………6 2.5.1 calculation of the focal points and principal points…………6 2.5.2 paraxial raytracing through several surfaces……………………………7 2.5.3 the “thin lens”.…………………………………………………………7 2.6 Primary aberrations…………………………………………………………9 2.6.1 Seidel (monochromatic) aberrations……….……………………………9 2.6.1.1 Spherical aberration…………………………………………………9 2.6.1.2 Coma………………………………………………………………9 2.6.1.3 Astigmatism……………………………………………………10 2.6.1.4 Field curvature…………………………………………………10 2.6.1.5 Distortion……………………………………………………………11 2.6.2 Chromatic aberrations………………………………………………12 2.6.2.1 V number…………………………………………………………12 2.6.2.2 Axial chromatic aberration…………………………………………. 13 2.6.2.3 Longitudinal chromatic aberration…………………………………. 13 2.7 Stops and pupils…………………………………………………………………14 2.7.1 f-number………………………………………………………………... 14 2.8 Modulation Transfer Function, MTF……………………………………………14 3. The specification of a surgical light………………………………………………... 17 3.1 International Electrotechnical Commission (IEC):2009………………………..17 3.1.1 Central illuminance, Ec………………………………………………… 17 3.1.2 Depth of illuminance…………………………………………………… 17 3.1.3 Details of specification…………………………………………………. 18 3.2 Products………………………………………………………………………… 19 4. Specification for three camera systems………………………………………….. 22 4.1 Specification --- three focal lengths, field of view (FOV) and f-number…….22 4.1.1 CMOS Sensor………………………………………………………... 22 4.1.2 Resolution……………………………………………………………. 22 4.1.3 Three focal lengths and f-number…………………………………… 23 4.1.4 Field of VIEW (FOV)……………………………………………….. 24 4.1.5 Summary…………………………………………………………….. 24 4.2 Optical glass…………………………………………………………………. 26 4.3 IR-cutting filter………………………………………………………………. 27 5. Design procedure………………………………………………………………… 28 5.1 Zemax………………………………………………………………………... 28 5.2 Three original camera systems………………………………………………. 28 5.3 Optimization…………………………………………………………………. 38 5.4 Aspherical surface…………………………………………………………… 38 5.5 Results……………………………………………………………………….. 39 6. Summary and future considerations……………………………………………... 70 6.1 The image quality area of our camera systems……………………………… 70 6.2 The image area of our camera systems……………………………………… 72 6.3 Application…………………………………………………………………... 74 6.4 Future Work………………………………………………………………….. 75 7. Reference………………………………………………………………………… 76

    1. Optical design: applying the fundamentals / Max J. Riedl.
    2. Aberrations of optical systems / W.T. Welford.
    3. Optical system design/ Robert E. Fischer, Biljana Tadic-Galeb, Paul R.Yoder
    4. Geometric optics; an introduction/ Nussbaum, Allen.
    5. Lens design fundamentals / Rudolf Kingslake.
    6. Modern Optical Engineering/ Warren J. Smith
    7. The properties of optical glass / Hans Bach, Norbert Neuroth, editors.
    8. Intermediate optical design/ Michael J. Kidger.
    9. Fundamental optical design / Michael J. Kidger. c2002
    10. Omnivision
    11. Zemax Manual
    12. Mediland Enterprise Corporation

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