The angle errors between the sight of target and the optical axial of a laser seeker characterizing the interactional effect, al.

In order to simplify the calculation,we often intentionally neglect the angle error and assume the angle variable to be constant,which will adversely affect the precision of the solution.

It is concluded that the angle error has no impact on the detection results and the profile errors of the two refraction surfaces have little effect,but the profile errors of the two reflection surfaces have great influence on the detection.

The analyse of theary about effect on angular error for reflective characterisitic of move angular cone prism;

The more exact temperature is measured,the more accurate angular error could be compensated.

The straightness and angular error of a machine guide are main factors to assure high quality of mechanical components in the precise manufacturing.

By the analysis of dihedral angle offset and flatness error of cube-corner, the reflective beam wave aberration distribution of cube-corner is presented and the far-field diffractive patterns are computed.

Angle Indexing Error Separation Technique for Prism--Multi-displacement Method;

By analysing phase locus of control system,gradient error angle indicating changing tendency of error and error variation is defined.