三百萬像素攝影機鏡頭設計;300 Mega Pixels Camera Design

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题名:	三百萬像素攝影機鏡頭設計;300 Mega Pixels Camera Design
作者:	潘群立;Pan,Chiun-li
贡献者:	光電科學研究所碩士在職專班
关键词:	攝影機;半視角30度;三片;塑膠鏡片;camera;60-degree;plastic;Triple lens
日期:	2012-07-23
上传时间:	2012-09-11 18:39:06 (UTC+8)
出版者:	國立中央大學
摘要:	本研究是利用三片塑膠鏡片與感光元件OV3630，以中華民國專利M272096當作起始值，設計半視角30°三百萬畫素攝影機。在設計的過程中，不刻意消除鏡片極值，透過真實像高控制畸變曲線、限制離軸NA值，來提升相對照度，成像品質方面則限制邊緣光線真實像高，搭配標準優化函數優化，優化完後的鏡頭總長度7.45 mm，相對照度大於62%，光學畸變控制在絕對值2%以內，空間頻率113 lps卅mm以內的MTF值均大於47 %，均符合成像品質目標。This research, which is based on the patent M272096 of Republic of China, aimed to design the three million pixels camera of 60-degree angle of view by using three plastic lens and sensor OV3630. In the process of designing, the researcher did not eliminate the extremum of lens intentionally. Moreover, comparative illumination was raised by controlling off-axis number aperture and the curve of distortion through real ray high. Furthermore, on the quality of imaging, the researcher limited the real ray high of margin ray, which was aiming respectively to the X and Y direction, and that is accompanied by standard merit function. After optimizing, the full length of this lens is 7.45114 mm, comparative illumination is greater than 62%, and the absolute value of optical distortion was controlled no more than 2%; moreover, all the MTF within 113 lps/mm of spatial frequency is greater than 47%. The results of this device above-mentioned were all qualified to the target of imaging quality.
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