APPARATUS FOR CONTROLLING AND ADJUSTING OPTICAL DEVICES Russian patent published in 2013 - IPC G01M11/02 G02B7/00 

FIELD: physics.

SUBSTANCE: apparatus has a fixed and a movable element arranged in series on an optical axis. The movable element is mounted in a pipe which is in turn configured to turn about the optical axis and be fixed at certain positions. The fixed element is transparent with line marks and has central and peripheral circular zones on an opaque background. The movable element is an opaque mask disc with transparent or through line marks and central and peripheral circular zones. The pipe lies on a fixed holder. On the inner surface of the holder there is a dimple for contact with the ball of a spring-loaded rod, lying radial to the optical axis in the inner cavity of the pipe behind the mask disc with possibility of sliding on the inner surface of the holder through a ball lying a side hole in the pipe, wherein the central circular zone of the mask disc is covered by the spring-loaded rod and is free when the ball is in contact with the dimple; also on the outer surface of the pipe on a circle beyond the spring-loaded rod there are dimples for successive fixation of the position of the pipe by a locating stop which is in form of a spring-loaded fixing rod with a ball which is in contact with a dimple, wherein the fixing rod lies inside the holder.

EFFECT: simple design and enabling control of optical devices, having two channels - a viewing channel and an information channel, by measuring energy characteristics thereof.

3 dwg