红外与激光工程
紅外與激光工程
홍외여격광공정
INFRARED AND LASER ENGINEERING
2014年
2期
517-522
,共6页
光学设计%全景成像仪%桶形畸变%光阑像差%像差渐晕
光學設計%全景成像儀%桶形畸變%光闌像差%像差漸暈
광학설계%전경성상의%통형기변%광란상차%상차점훈
optical design%panoramic imager%barrel distortion%pupil aberration%aberration vignetting
采用全景环形透镜和中继透镜组组合的结构型式设计了一个中心波长360 nm，带宽10 nm，视场360°×(70.9°～73.3°)，焦距5 mm，相对孔径1：3.3的紫外全景成像仪光学系统。针对该光学系统视场大的特点，重点研究了提高其像面照度均匀性的方法。利用CODE V和ZEMAX光学设计软件进行了优化设计和设计结果分析，结果表明：点列图弥散斑半径的RMS值小于1/2像元，弥散斑80%的能量集中在一个像元内，光学传递函数>0.72@38.5 lp/mm，f-θ畸变控制在0.4%以内，像面照度均匀性达到91%，设计结果满足指标要求，并且体积小，特别适合在空间大气探测等领域应用，也证明了提出的紫外全景成像仪光学设计方法是可行的，可在其他波段推广应用，对全景成像仪的设计具有指导意义。
採用全景環形透鏡和中繼透鏡組組閤的結構型式設計瞭一箇中心波長360 nm，帶寬10 nm，視場360°×(70.9°～73.3°)，焦距5 mm，相對孔徑1：3.3的紫外全景成像儀光學繫統。針對該光學繫統視場大的特點，重點研究瞭提高其像麵照度均勻性的方法。利用CODE V和ZEMAX光學設計軟件進行瞭優化設計和設計結果分析，結果錶明：點列圖瀰散斑半徑的RMS值小于1/2像元，瀰散斑80%的能量集中在一箇像元內，光學傳遞函數>0.72@38.5 lp/mm，f-θ畸變控製在0.4%以內，像麵照度均勻性達到91%，設計結果滿足指標要求，併且體積小，特彆適閤在空間大氣探測等領域應用，也證明瞭提齣的紫外全景成像儀光學設計方法是可行的，可在其他波段推廣應用，對全景成像儀的設計具有指導意義。
채용전경배형투경화중계투경조조합적결구형식설계료일개중심파장360 nm，대관10 nm，시장360°×(70.9°～73.3°)，초거5 mm，상대공경1：3.3적자외전경성상의광학계통。침대해광학계통시장대적특점，중점연구료제고기상면조도균균성적방법。이용CODE V화ZEMAX광학설계연건진행료우화설계화설계결과분석，결과표명：점렬도미산반반경적RMS치소우1/2상원，미산반80%적능량집중재일개상원내，광학전체함수>0.72@38.5 lp/mm，f-θ기변공제재0.4%이내，상면조도균균성체도91%，설계결과만족지표요구，병차체적소，특별괄합재공간대기탐측등영역응용，야증명료제출적자외전경성상의광학설계방법시가행적，가재기타파단추엄응용，대전경성상의적설계구유지도의의。
An optical system of UV limb panoramic imager was designed by using panoramic annular lens (PAL) and relay lens, the central wavelength was 360 nm, the waveband was 10 nm, the field of view was 360° ×(70.9°~73.3° ), the focal length was 5 mm, and the relative aperture was 1:3.3. The method of improving the uniformity of image illumination was studied against the large field of view of the optical system. Optimization and analyzsis were performed using CODE V and ZEMAX software. The design result shows that the RMS radius of disc of confusion of spot diagram is less than half of the pixel, 80% of energy is enclosed in a pixel, the MTF is >0.72@38.5 lp/mm, the f-θ!distortion is less than 0.4%, the uniformity of image illumination is 91%. The design results satisfy the requirement of the specifications, the volume is small, and suitable to application in space atmosphere sounding. It indicates that the optical design method of UV panoramic imager is feasible, and the design method can be used in other wavebands, it is instructional for designing the panoramic imager.
