光电测试技术-第2章 基本光学量测试技术

1、2022-1-131光电测试技术光电测试技术 2022-1-1322022-1-1332022-1-134yFl0 = l = 1/观察系统物方的对准和调焦不确定度的表示 x2022-1-135aa2022-1-136eeDall1211112022-1-137122288lDlDkee2122811eKDll2022-1-1382/122222218eeeKDDa2022-1-1391-1 光电系统的对准和调焦技术光电系统的对准和调焦技术1. 目视系统的对准和调焦目视系统的对准和调焦bll12112022-1-13102022-1-13112eeDa2211222228eDK2022-1-1

2、3122228KDDae2022-1-1313b22022-1-1314btbD/2De眼瞳在出瞳面上摆动时的有效移动距离42eDDb)1(21Db2022-1-13151-1 光电系统的对准和调焦技术光电系统的对准和调焦技术1. 目视系统的对准和调焦目视系统的对准和调焦y2502022-1-1316y250a10161min )10161(minyDa02. 1NA51. 0 2022-1-1317eqefNAnax)(21222)(62sin62NAnUnx222)(622NAnNAfnaxeqe2022-1-131822eqeqfbnnfx2/ ) 1( DbNAfDeq21DDNAfn

3、xeq2022-1-13192022-1-13202022-1-13212tan fl 2022-1-13222022-1-13232022-1-1324M 扇形光栅法定焦系统0ffddcocffdRd2sin22/sin2ccff dRa）b）c）用扇形光栅确定像面用扇形光栅确定像面0amaxa0-0.2 0 0.2af50a（%） 100dRdd2022-1-13252022-1-132620( , )MNxyFg x yg2022-1-13272022-1-13281-2 焦距和顶焦距的测量焦距和顶焦距的测量1.概述概述2022-1-13292022-1-13302022-1-13312

4、022-1-13322022-1-1333tan200fytan2 fy2200fyfy00yyff2022-1-1334 DCDykff000 1111222202222000kyDffkyDff2022-1-1335 /00ff0yDkkB/%15. 0001. 06003. 024005. 0001. 02222ff%24. 0ff2022-1-1336 pNfyyf122022-1-1337精密测角法测量原理图tan0yf 2022-1-13382022-1-13392022-1-13402022-1-13412102)(2aJII2022-1-1342afU夫朗和斐圆孔衍射图艾里斑2

5、022-1-1343a22022-1-13442022-1-13452022-1-1346Da61. 0261. 021max61. 000maxfDfd2022-1-1347/5 . 0tanfDU UUmaxmaxsinUnNA 2022-1-1348fDfDfx042. 1)636. 1678. 2()(12180603250 xfD21. 02022-1-13492022-1-13502022-1-13512022-1-13522022-1-1353FDf22. 122. 10F02. 10F947. 002022-1-1354fa001N02022-1-1355D22. 1D02.

6、1D947. 0F22. 11F02. 11F947. 01NA61. 0NA51. 0NA47. 02022-1-135633coscos11NNttcoscos11NNss100806004020204060Nt / N, N s/ N (%)Ns / NNt / N理论分辨率随视场理论分辨率随视场变化的曲线变化的曲线2022-1-13572022-1-135894387. 02/112q2022-1-13592022-1-1360cf ) ( 2062652cfPa2022-1-1361)(mm / -10ffNNc2022-1-13621cos1fx2022-1-1363220cosc

7、os21NffNPNcttcoscos210NffNPNcss2cos12cos1cos2cttffPafP2022-1-13642022-1-13652022-1-13662022-1-13672022-1-13682022-1-136911111cossinxyr1111111111111 cossin( ,)0 cossinxyrT x yxyr2022-1cossin,0 cossinrWWxyRWWTrWWxyxyR111cossinrWWxyR2022-1-137122( , )()W x yD xy111cossin2rxyDR10 12rxDR2022

8、-1-137212rxDR2022-1-137322222( , )()()W x yA xyD xy221112 2 ()( cossin)rA xyDxyR2022-1-1374321024rDyxyAAR2022-1-1375321024rDyxyAAR3202DyxyA2220DyxAy 2022-1-13761-5 刀口阴影法检验刀口阴影法检验1. 刀口阴影法基本原理刀口阴影法基本原理2022-1-13771-5 刀口阴影法检验刀口阴影法检验1. 刀口阴影法基本原理刀口阴影法基本原理2022-1-13781-5 刀口阴影法检验刀口阴影法检验1. 刀口阴影法基本原理刀口阴影法基本原理2

9、022-1-13792022-1-13802022-1-13812022-1-13822022-1-13832022-1-1384 dd) , ,(),() , (vuvuvuhvuovui2022-1-1385 vuvuvuhvuovuidd) , ,(),() , (2022-1-1386),() , ,(vvuuhvuvuh2022-1-1387 vuvvuuhvuovuidd),(),() , (2022-1-13882022-1-1389 vuvuhvuhvuPSFdd),(),(),(vuvvuuPSFvuovuidd),(),() ,(2022-1-1390vuvvuuPSFvu

10、ovuidd),(),() ,(),(),(),(srOTFsrOsrIvusvruvuPSFsrOTFdd)(j2exp),(),( 2022-1-1391( , )( , )expj( , )OTF r sMTF r sPTF r s2022-1-1392vuruvuPSFrOTFdd)j2exp(),()0 ,(1 vvuPSFuLSFd ),()(2022-1-1393uuruLSFrOTFd)j2exp()()()(jexp)()(rPTFrMTFrOTF2022-1-1394uuuouLSFuuuLSFuouid)()(d)()() (2022-1-1395)2cos()(0urI

11、Iuoa2022-1-1396)(2cos)(2sin)(2cos)(2sind2sin)(2cosd2cos)()(000rPTFrurMTFIIrurHIrurHIIruuruuLSFIururuuLSFIIuiasacaaauruuLSFrHuruuLSFrHrHrHrPTFrHrHrMTFsccscd)2sin()()(d)2cos()()()(/ )(arctan)()()()(s222022-1-1397)()()(0rCrCrMTFiminmaxminmaxIIIIC2022-1-1398)(jexp)()(rPTFrMTFrOTF2022-1-13992( , )( , )ex

12、pj() d dASF u vCP x yuxvyx yR2022-1-131002( , )exp j( , ) ( , )0 A x yW x yP x y在光瞳内在光瞳外2022-1-13101*( , )( , )( , )PSF u vASF u v ASF u v*( , )( , )exp 2j()d d( , )(,)d dGOTF r sPSF u vrusvu vcP x y P xx yy x y 2( , )( , )expj() d dASF u vCP x yuxvyx yR2022-1-13102/xyfxRfyRyxxyG光瞳位移光瞳光瞳位移的重叠区OOxy20

13、22-1-13103(,)d d =xyGGOTF ffcx yS2022-1-131042sin2()xOTF fcDfRx2022-1-131052022-1-131062022-1-131072022-1-131082022-1-13109)(2cos)()(0rPTFrurMTFIIuia2022-1-13110)()(2cos)()(d) () () (1110111rPTFrPTFrurMTFrMTFIIuuuiusuia)( ),(1rPTFrMTF2022-1-13111)()()()(1rOPTrSrOrI)(1rI2022-1-13112 ururruIuo)(52cos5

14、1)(32cos312cos41)(0 )5( )(52cos)5( 451)3()(32cos)3( 431)(2cos)( 41) (0rPTFurrMTFrPTFurrMTFrPTFrurMTFIui2022-1-131131-6 光学传递函数测试技术光学传递函数测试技术2. 光学传递函数测试原理及方法光学传递函数测试原理及方法 )5( )(52cos)5( 451)3()(32cos)3( 431)(2cos)( 41)(0rPTFtrrMTFrPTFtrrMTFrPTFt rrMTFItitttVtu rVrt2022-1-13114)(2cos)( 4)(0rPTFt rrMTFItit2022-1-131152022-1-13116cos0rr 2022-1-131172022-1-131182022-1-131192022-1-131202022-1-131212022-1-13122yxsyrxWyxWiCsxOTFGdd),(),(2exp),(2022-1-131232022-1-13124 轴外点理论分辨率与轴 上点理论分辨率的关系MtCPPMCOuPPuf f uMCsin61. 0cosDPPDcos/ff22coscos1sin61. 0261. 0sin61. 0ufDu3coscost33coscos11NNtt20