论文部分内容阅读
由于目前可供选择的红外透镜材料不多,而红外光学系统透过的波段又往往很宽(例如8～14μ),因此红外光学系统大多采用非球面反射式系统或折反射式系统,以便用较少的面数尽可能减少一些象差。此外,在某些导弹的红外导引头和搜索跟踪系统中,为了对视场扫描,红外光学系统中的某几块镜子可能与整个光学系统不同轴。非球面、非同轴系统的光学设计问题是本文讨论的重点,因为它是与一般可见光系统不大一样的,并且也是一般应用光学书籍上所不容易找到的。
Due to the small number of infrared lens materials available for selection and the long wavelength band of infrared optical systems (for example, 8~14μ), infrared optical systems mostly use aspheric reflection systems or catadioptric systems Less number of faces minimizes some aberrations. In addition, in some missile infrared seekers and search-tracking systems, some of the mirrors in an infrared optical system may be out of alignment with the entire optical system for field-of-view scanning. The problem of optical design of aspherical, non-coaxial systems is the focus of this article because it is not as common as a normal visible light system and is also not easily found in general-purpose optical books.