數位狙擊鏡光學系統;Digital Sniper Scope Optical System

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/94881

Title:	數位狙擊鏡光學系統;Digital Sniper Scope Optical System
Authors:	王翔生;Wang, Siang-Sheng
Contributors:	光電科學與工程學系
Keywords:	狙擊鏡;數位狙擊鏡;物鏡;反轉鏡;目鏡;光學變焦攝影機系統;Sniper scope;Digital sniper scope;Objective lens;Prism;Eyepiece;Eyepiece, Optical zoom camera system
Date:	2024-04-24
Issue Date:	2024-10-09 15:35:25 (UTC+8)
Publisher:	國立中央大學
Abstract:	本論文設計一種口徑為40 mm、放大倍率為十六倍的狙擊鏡光學系統。該狙擊鏡光學系統可以分為物鏡系統、反轉鏡系統和目鏡系統。我們分別對這三個系統進行設計。物鏡系統具有最大0.7度的半視角入射角度，176 mm的焦距，以及40 mm的入瞳口徑；反轉鏡系統的橫向放大率為2倍；目鏡系統則擁有最大11.06度的半視角出射角度，22 mm的焦距，2.5 mm的出瞳，並在50 mm的良視距離內提供清晰的視野。最終，確保它們在保持初階規格的條件下將這三個系統組合成一個狙擊鏡系統。此研究提出一種適用於狙擊鏡之數位攝影機光學系統設計。該系統使用500萬畫素的CCD影像感測器，其有效面積尺寸為2.903 mm × 2.177 mm，焦距為9.282 mm，半視角範圍為11.06°，F/# 為3.71。針對數位狙擊鏡所含的四個系統，我們分別進行波前像差、光學畸變和橫向色差的全面分析。在各系統獨立完成設計後，再進行公差分析，以確保每個系統都滿足預定的設計要求。在各系統完成後，將狙擊鏡的三個鏡組組合成一個狙擊鏡系統，其放大倍率為16X，最後接上數位攝影機系統，可將狙擊鏡的影像能供給人眼或數位攝影機使用。 ;This thesis presents the optical system design of a sniper scope with a caliber of 40 mm and a magnification of sixteen times. The sniper scope optical system comprises three main components: the objective lens system, the erecting prism system, and the eyepiece system. Each of these systems was designed individually. The objective lens system has a maximum semi-field angle of 0.7 degrees, a focal length of 176 mm, and a 40 mm entrance pupil diameter. The erecting prism system provides a lateral magnification of 2 times. The eyepiece system offers a maximum semi-field angle of 11.06 degrees, a focal length of 22 mm, a 2.5 mm exit pupil, and ensures clear vision within a 50 mm eye relief distance. Finally, the three systems are combined into one sniper scope system while maintaining the initial specifications. This thesis presents an optical system design for a digital camera suitable for sniper scopes. The system utilizes a 5-megapixel CCD image sensor with an effective area size of 2.903 mm × 2.177 mm, a focal length range of 9.282 mm, a half field of view of 11.06°, and an F/# of 3.71. Comprehensive analyses of wavefront aberration, optical distortion, and lateral chromatic aberration were conducted for the three systems of the sniper scope and the zoom digital camera system. After the independent design of each system, tolerance analysis was performed to ensure that each system meets the specified design requirements. Upon completion of each system, the three lens groups of the sniper scope are assembled into one sniper scope system with a magnification of 16X, and then connected to the digital camera system to provide images for either human eyes or digital cameras.
Appears in Collections:	[Graduate Institute of Optics and Photonics] Electronic Thesis & Dissertation

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