TWO-CHANNEL ELECTRO-OPTICAL AUTOCOLLIMATOR Russian patent published in 2007 - IPC G02B27/30 

FIELD: electro-optical instrument engineering.

SUBSTANCE: two-channel electro-optical autocollimator is described having radiation source in near IR spectrum range. Autocollimator has two channels. Main channel has objective, beam-splitting prism and illuminator. Optical axis of illuminator is disposed along beam path, which beam is reflected from hypotenuse face of beam-splitting prism. Illuminator has the following parts disposed in series: beam-splitting prism of autocollimation mark, condenser and light source. Additional channel is disposed in parallel to axis of illuminator from main channel but on the other side of beam-splitting prism. Additional channel has additional objective disposed in series with flat mirror. Second illuminator is introduced into additional channel. Second illuminator is disposed at side of illuminator from main channel in relation to beam-splitting prism. Axis of additional channel is shifted in relation to axis of main channel. Both illuminators are optically conjugated with same hypotenuse face of prism. There is photo-receiving linear array in focal plane of objective of main channel. Light-absorbing plates are mounted onto beam-splitting prism. Additional prism is mounted onto opposite face of beam-splitting prism in site of crossing with same axis. Additional prism changes direction of axis of additional channel.

EFFECT: widened functional abilities; reduced sizes.

1 dwg