Modular Translation Flexure

This is a modular linear translation flexure based on the folded beam principle. It produces a very good linear movement without tilting and displacement which makes it suitable for optical experiments (e.g. Interferometer) when assembled and mounted properly.

The second picture shows the white light interference of a white LED torch from a Michelson Interferometer with retroreflectors. One Reflector is mounted on the flexure translation stage. When interferometer arms have same length interference pattern appears. The length difference for White light interferences is typically only some micrometers where it is for common laser diodes a couple of mm.

The flexure blades can be easily exchanged. You can try out different lengths, materials or thickness.
You can cut blades yourself from various sheet materials. Even plastics sheets from packaging material are working.
But Metal would be the best if available.

(The moving Shuttle has a 10mm wide grove for a position magnet array)

Dim