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Novel mirror holder

PTBnews 3.2021
Especially interesting for


manufacturers of optomechanical components

a) Front view of the mirrorholder b) rear view of the mirrorholder

In some optical assemblies, it is necessary to independently adjust two beams which are separated by a few millimeters. Such situations make it desirable to perform the adjustment of both beams with a single mirror holder to reduce the beam spacing and the total mechanical footprint while the mechanical stability is improved. PTB’s concept of a double mirror holder offers a simple solution to this problem. The two D-shaped mirror halves are kept in one module but can be adjusted independently of each other. Both half mirrors therefore have the same stability. (Technology Offer 525)


independent adjustment of two beams

reduced beam spacing and mechanical footprint

high mechanical stability

Contact person for questions about technology transfer

Andreas Barthel,
Phone: +49 531 592-8307,
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