fold flat
From Wiktionary, the free dictionary
Noun
fold flat (plural fold flats)
- A fold mirror that is a "flat", i.e. a plane mirror
- 2007 September, Hadjimichaela et al., “An Alignment and Integration Technique for Mirror Segment Pairs on the Constellation X Telescope”, in Proceedings of SPIE, volume 6688, , retrieved 2021-12-27, pages 66881D-4:
- By reflecting the incident beam off of a rotating fold flat located on the optical axis of mirror segment..., we can conveniently image a range of azimuthal positions.
See also
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