Research on a Small-Sized Monitoring Objective Lens for Amphibious Submarine Vehicles
A amphibious underwater vehicle is one of the directions for the future development of automobiles and a technological supplement for the further development of automotive technology to high-end application.In or-der to meet the demand of amphibious underwater vehicles for the ultra-high definition video recording of their underwater driving,based on the basic theory of applied optics and Zemax optical design software,a small-sized underwater fixed-focus monitoring objective lens with hemispherical cover glass as the window is designed to adapt to a low-light monitoring camera.The total optical length of the system is 58mm,and its underwater diago-nal field of view is 64°.When Quineste frequency is 120lp/mm,the MTF of the system is greater than 0.3,and its distortion is 6%.This lens has a simple and compact structure and high imaging quality,and it is also suitable for other underwater motion platforms.
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