博碩士論文 101226027 詳細資訊




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姓名 黃凱章(Kai-chang Huang)  查詢紙本館藏   畢業系所 光電科學與工程學系
論文名稱 超大景深(多段式,物距無窮遠至10mm)手機鏡頭設計
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摘要(中) 本設計是以自動對焦手機鏡頭設計為主,物距是從無窮遠至9.754 mm,此最短距離為2倍焦距長之手機鏡頭設計。ㄧ般物距越短,其主光線與邊緣光線高度與角度會漸漸變化,造成真實f/#會變大及像差也會有所改變,由其是物距越短變化越大,我們為了區隔此變化,依據物距變化分成兩部分分析。當物距從無窮遠至100 mm 距離,要求MTF大於50%,在空間頻率114 lp/mm 位置之超大景深要求,我們分別對物距無窮遠、1500 mm、550 mm、325 mm等做分析。至於物距在100 mm至9.754 mm,其MTF變化很大。如物距為100 mm, MTF為50.9%,在空間頻率114 lp/mm 位置,其物方解析度為592 dpi;當物距在9.754 mm時,其放大率為-1,其MTF 為42.5%,在空間頻率14 lp/mm 位置,其物方解析度為711 dpi。

摘要(英) The design is based on the cell phone camera of autofocus . The camera can take pictures from infinity to10 mm (distance of two times focal length). In order to achieve the goal of great depth of field, we requisite the MTF of the object distance from infinity to 10 mm more than 50% in 114 line pair per mm. The object distance for quantity of camera and first order calculation is divided into several parts such as Infinity(for scenery)、1500 mm(for Group Photo)、550mm(selfie)、325 mm(photo A4 document)..etc.
As to the object distance from 100 mm to 10mm, the optical quality we want is MTF higher than 40 percent and DPI is greater than 300. For example, we require that when the spatial frequency is 14 lp/mm which means DPI is 711, MTF should greater than 40 percent.
關鍵字(中) ★ 超大景深
★ 多段式
關鍵字(英) ★ Autofocus
論文目次 目錄
摘要 II
ABSTRACT I
誌謝辭 II
目錄 III
圖目錄 V
表目錄 VII
第一章 緒論 1
第二章 理論 3
2-1 幾何光學基本理論 3
2-2 薄透鏡成象公式 5
2-4 調制轉換函數(Modulation Transfer Function, MTF) 9
2-5 DPI (Dot Per Inch) 9
2-6 繞射極限 DMTF 9
第三章 成像系統設計 11
3-1 相機規格 11
3-2 初階規格設定 12
3-3 優化目標制定 13
3-4 物距的影響 17
第四章 設計結果與公差分析 20
4-1 鏡組資料 20
4-2 初階設計結果 22
4-3 MTF設計結果 22
4-4橫向色差(Lateral color)設計結果 34
4-5 Distortion設計結果 40
4-6相對照度(Relative illumination)設計結果 44
4-7公差分析 46
第五章 結論與未來展望 58
參考資料 59

參考文獻 [1] D. Bister , F. Mordarai, and Aveling, R. M., "COMPARISON OF 10 DIGITAL SLR CAMERAS FOR ORTHODONTIC PHOTOGRAPHY," Journal of Orthodontics, Vol.33, No. 3, pp.223-230
[2] A. Friedman, and B. McLeod, "Optimal design of an optical lens," Archive for Rational Mechanics and Analysis 99, 147-164 (1987).
[3] R. Hain, C. J. Kahler, and C. Tropea, "Comparison of CCD, CMOS and intensified cameras," Experiments in Fluids 42, 403-411 (2007).
[4] N. Matsukawa, R. Mori, Y. Nakano, S. Nishioka, and K. Ohsawa, "Autofocus camera," (Google Patents, 1996).
[5] L. S. Weinblatt, "Camera autofocus technique," (Google Patents, 1986).
[6] L. Saurei, G. Mathieu, and B. Berge, "Design of an autofocus lens for VGA ¼-in. CCD and CMOS sensors," in Optical Systems Design(International Society for Optics and Photonics2004), pp. 288-296.
[7] R. Graham, A variable focus lens an dits use, J.O.S.A. vol 30, pp560-563, (1940).
[8] J. Wang, S. Zhai, and J. Canny, "Camera phone based motion sensing: interaction techniques, applications and performance study," in Proceedings of the 19th annual ACM symposium on User interface software and technology(ACM2006), pp. 101-110.
[9] R. Ballagas, J. Borchers, M. Rohs, and J. G. Sheridan, "The smart phone: A ubiquitous input device," Ieee Pervasive Computing 5, 70-77 (2006)
[10] R. Voelkel, "Natural optical design concepts for highly miniaturized camera systems," in Optical Systems Design and Production(International Society for Optics and Photonics1999), pp. 548-556.
[11] Y. Kawano, C. Abe, K. Abe, K. Hayashi, Y. Hatta, and K. Tamura, "Macro optical system for biological application," in International Symposium on Optical Science and Technology(International Society for Optics and Photonics2000), pp. 288-296.
[12] The acronym appears in sources as either "DPI" or lowercase "dpi". See: "Print Resolution Understanding 4-bit depth – Xerox" (PDF). Xerox.com. September 2012.
[13] A. Kumada, "A piezoelectric ultrasonic motor," Japanese Journal of Applied Physics 24, 739 (1985)
[14] P. M. Hubel, J. Liu, and R. J. Guttosch,"Spatial frequency response of color image sensors: Bayer color filters and Foveon X3" in Electronic Imaging 2004Anonymous (International Society for Optics and Photonics, 2004)
[15] Father of the Bayer filter dies aged 83, http://www.hdwarrior.co.uk/2012/ 11/23/father-of-the-bayer-filter-dies-aged-83/
[16] A. W. Greynolds, "Design, analysis, and fabrication of a really bad lens," in SPIE Optical Engineering+ Applications(International Society for Optics and Photonics2009), pp. 74290E-74290E-74298.
[17] C.-S. Liu, and P. D. Lin, "Miniaturized auto-focusing VCM actuator with zero holding current," Optics express 17, 9754-9763 (2009).
[18] D. J. Brady, and N. Hagen, "Multiscale lens design," Optics express 17, 10659-10674 (2009).
指導教授 孫文信(Wen-shing Sun) 審核日期 2014-7-30
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