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RISS 인기검색어
- 검색키워드
- 저자 : Yupeng Xiong (검색결과 2 건)
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Design and experimental demonstration of coaxially folded all-reflective imaging system
Yupeng Xiong,Yifan Dai,Shanyong Chen,Guipeng Tie 한국광학회 2019 Current Optics and Photonics Vol.3 No.3
With slimmer, lighter and all-reflective imaging systems in high demand for consumer and military applications, coaxially folded optical image systems are widely considered because they can extend focal length and reduce track length. Most of these systems consist of multiple surfaces, and these surfaces are machined on one element or grouping processing on two elements. In this paper, we report and first experimentally demonstrate an all-aluminum all-reflective optical system which consists of two optical elements, with two high order aspherical surfaces in each element. The coaxially folded system is designed with Seidel aberration theory and advanced optimization with Zemax. The system is made of all-aluminum material processing by single point diamond turning (SPDT). On this basis, we completed the system integration and performed an imaging experiment. The final system has the advantages of short track length and long focal length and broad application prospects in the micro-unmanned aerial vehicle field.
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Athermalization of an Optical System Based on Lens Shape and Assembly Method
Sihua Xu,Xiaoqiang Peng,Guipeng Tie,Chaoliang Guan,Hao Hu,Yupeng Xiong 한국광학회 2019 Current Optics and Photonics Vol.3 No.5
Temperature adaptability is an important metric for evaluating the performance of an optical system. The temperature characteristics of the optical system are closely related to the material and shape of its lens. In this paper, we establish a mathematical model relating the temperature characteristics to the shape and material of the lens. Then a novel assembly structure that can solve the lens constraint and positioning problem is proposed. From those basics, the correctness of the theoretical model and the effectiveness of the assembly structure are verified through simulated analysis of the imaging quality of the optical system, whose operating temperature range is -60~100°C.
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