Autocollimators

What it does

An autocollimator sends a parallel beam of light onto a mirror or a polished face and watches where the reflection comes back. When the surface tilts, the returning spot moves in proportion to the angle, so the instrument reads small angles without touching the part.

Electronic autocollimators read the spot with a detector and follow it in real time. They measure static angles, such as the parallelism of two faces or the angle between a crystal face and a reference, and angular motions, such as the pitch and yaw of a moving stage.

What we use it for

• Alignment of crystals and optics

  Setting faces parallel, or at a given angle, during assembly and before measurements.

• Errors of mechanical stages

  Parasitic angular motions of linear guides, measured in a study for Strumenti Scientifici CINEL.

Working with us

We can check angles, parallelism and the angular errors of stages and mechanics.