The point-spread function and emissivity are calculated for a mirror made from regular hexagonal segments of just a few different sizes. A mirror of this type has many similar segments, which is an advantage for manufacturing, and for an ~<i>f</i>/1 mirror with ≥1000 segments and ≥4 sizes of regular hexagons the increase in intersegment gap area is negligible. This result raises the possibility of making a mirror from very large numbers of identical small segments that are warped to the required figure.
© 2003 Optical Society of America
Dario Amodei and Stephen Padin, "Mirrors with Regular Hexagonal Segments," Appl. Opt. 42, 5130-5135 (2003)