POLARIZATION OPTICS DESIGN FOR A LASER TRACKING TRIANGULATION INSTRUMENT BASED ON DUAL-AXIS SCANNING AND A RETROREFLECTIVE TARGET

被引：6

作者：

MAYER, JRR ^{[1
]}

机构：

[1] UNIV SURREY,DEPT MECH ENGN,GUILDFORD GU2 5XH,SURREY,ENGLAND

来源：

OPTICAL ENGINEERING | 1993年 / 32卷 / 12期

关键词：

JONES CALCULUS; POLARIZATION; AIR-PATH RETROREFLECTORS; LASER TRACKING; TRIANGULATION; X-Y SCANNING;

D O I：

10.1117/12.151296

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The design of the polarizing optics of an instrument that uses laser tracking triangulation for the dynamic measurement of the 3-D co-ordinates of a retroreflective target is presented. The system, which uses dual-axis scanning mirrors, has applications in the performance testing and calibration of industrial robots. Analytical and experimental results are provided for the design of the polarizing scheme to maximize beam-energy usage for a given safety classification while minimizing any unwanted laser feedback and secondary beams that can affect measurement precision. Finally, a study of the depolarizing effects of air-path retroreflectors shows how severe degradation of measurement accuracy can result from their use in this context, which thus supports the alternative use of a cat's-eye type target.

引用

页码：3316 / 3326

页数：11

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