학술논문

Athermalization of an Optical System Based on Lens Shape and Assembly Method
Document Type
Academic Journal
Source
Current Optics and Photonics. 2019-10 3(5):429-437
Subject
Optical system
Athermalization
Temperature characteristics of focus
Thermal deformation
Assembly structure
Language
Korean
ISSN
2508-7266
2508-7274
Abstract
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.