A method and apparatus for generating small angles for calibrating autocollimators or the like is described. It includes a small angle wedge which is rigidly attached to a mechanical beam which is rotatable about a pivot point. The rotation of wedge causes a very small deviation in the line of sight of an autocollimator under test after passing through the wedge and thus gives a large optical advantage.
申请公布号
US4909625(A)
申请公布日期
1990.03.20
申请号
US19880215200
申请日期
1988.07.05
申请人
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY
发明人
MAGEE, ROBERT J.;MARCHI, JIAN P.;SULLIVAN, DANIEL F.;BROWN, GARY L.