Effect of measuring conditions on measuring results of stray light coefficients
-
摘要:针对同一光学产品的杂光系数由于测试条件的不同,测试结果往往差别很大,无法进行准确比较的问题,对几种光学镜头在不同的测试条件下反复进行了杂光系数测试实验。通过理论分析和实验测试给出了不同黑体目标尺寸和接收光阑孔径以及是否加装准直镜对杂光系数测量结果的影响。结果表明,对同一光学产品,选取的黑体目标尺寸越大,测试结果杂光越小;选取的光电接收器件接收光阑孔径越大,测试结果杂光越大。另外,准直物镜的使用会引入新的杂光,令杂光测试结果增大,但增大的量值可视为定值,进而从测试结果中减除。Abstract:The same optical product can show different stray light coefficients in different measuring conditions, and it is impossible to compare the different results correctly. According to this situation, the stray light coefficients of several kinds of optical lenses have been experimentally investigated in different measuring conditions, such as sizes of block body, receiving apertures of photoelectric device and mounting the collimating objective or not, and the theoretical analysis and experimental results supply the dependences of stray light coefficients on test conditions. The experimental results indicate that the larger size of the black body, the smaller value of stray light; the larger receiving aperture of photoelectric receiving device, the larger value of stray light; the use of collimating objective will induce new stray lights which increase the value of stray light in experiments, but the increased part can be deducted from the results, as the value can be seen a fixed one.
-
[1] 张国玉,李风春,高玉军. 光学系统杂光测试仪误差分析
[J]. 长春光学精密机械学院学报 ,1996,19(3):17-20. ZHANG G Y,LI F CH,GAO Y J. The error analysis of stray light measuring instrument for optical system
[J].J.Changchun Inst. Opt.&Fine Mech.,1996,19(3):17-20.(in Chinese)
[2] 马冬梅,张晓辉,韩昌元. 大口径、长焦距光学系统杂光系数、渐晕系数、像面照度均匀性等参数的测试
[J]. 应用光学 ,1998,19(5):44-47. MA D M,ZHANG X H,HAN CH Y. Test of stray light coefficent, vignetting coefficent and image surface illuminnation uniformity of optical system with large aperture
[J].J. Appl. Opt.,1998,19(5):44-47.(in Chinese)
[3] 高万荣,查冠华,苗兴华,等. 长焦距光学系统杂光系数测试仪
[J]. 光子学报 ,1996,25(6):537-540. GAO W R,ZHA G H,MIAO X H,et al.. The device for the measurement of the veiling glare index of long focal optical system
[J].Acta Photonica Sinica,1996,25(6):537-540.(in Chinese)
[4] 高万荣,薛明球,苗兴华,等. 长焦距光学系统杂光系数测量的新方法及其理论分析
[J]. 光学学报 ,1996,16(11):1626-1630. GAO W R,XUE M Q,MIAO X H,et al.. A new method for measuring the veiling glare index of long focal optical system and analysis
[J].Acta Optica Sinica,1996,16(11):1626-1630.(in Chinese)
[5] 杨鹏立. 准直物镜对杂光测量结果的影响
[J]. 应用光学 ,1997,18(1):45-46. YANG P L. Effect of collimating objective on the measuring result of stray light
[J].J. Appl. Opt.,1997,18(1):45-46.(in Chinese) -
点击查看大图
计量
- 文章访问数:4443
- HTML全文浏览量:474
- PDF下载量:1898
- 被引次数:0
下载:
