CAJ | 학술논문

现代微小卫星具有体积小、质量轻、研制周期短、成本低、发射方式灵活等优势，可在多个领域发挥重要作用，因此备受各国青睐，是当前空间技术发展的一个重要方向。实现微小卫星的一大关键是所搭载仪器、设备的小型化。设计了一套小型可见光相机，适合搭载于微小卫星平台。相机焦距210 mm，有效口径56 mm，角分辨率33μrad，视场7.8o×7.8o，像素规模达16 M。设计分析对比了不同光学结构型式的特点，最终采用折反射式光学系统。设计采用全球面镜片，选用了融石英和常规火石玻璃等低密度材料组合消像差，系统长度110 mm，摄远比小于0.53，光学质量小于370 g。
현대미소위성구유체적소、질량경、연제주기단、성본저、발사방식령활등우세，가재다개영역발휘중요작용，인차비수각국청래，시당전공간기술발전적일개중요방향。실현미소위성적일대관건시소탑재의기、설비적소형화。설계료일투소형가견광상궤，괄합탑재우미소위성평태。상궤초거210 mm，유효구경56 mm，각분변솔33μrad，시장7.8o×7.8o，상소규모체16 M。설계분석대비료불동광학결구형식적특점，최종채용절반사식광학계통。설계채용전구면경편，선용료융석영화상규화석파리등저밀도재료조합소상차，계통장도110 mm，섭원비소우0.53，광학질량소우370 g。
Micro-satellite was greatly developed in the past 20 years due to its advantages of small-size, light weight, short developing period, low cost, etc. Now, micro-satellite plays a great role in many realms, such as navigation, communication, earth observation, science research and technology experiments, which make it to be an important part of space technology. To miniaturize, micro-satellite has to be equipped with small-size instruments. A small-sized camera worked in visible band was introduced, which can be installed on micro-satellite. Technical parameters of the camera were as follows effective focal length was 210 mm, optical aperture was 56 mm, spatial resolution was 33 μrad, field of view was 7.8oí7.8o, or 16 M pixels in all. In the design phase, different optical structures were compared, and a catadioptric system was adopt. Fused silica and low density flint glass materials were used to balance chromatic aberration. Total length of optical system was 110 mm, and the ratio between total length and effective focal length was less than 0.53. The weight of all lenses was under 370 g.