| dc.description.abstract | 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. | en_US |