Paper
27 December 2001 Manufacturing and evaluation of membrane optical elements for ultralightweight optics
Brian G. Patrick, James D. Moore Jr., Whitt Brantley, Thomas Kester, David L. Lehner
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Abstract
SRS Technologies has made significant strides in the research and development of ultra-lightweight membrane optics for future imaging applications while conducting work with NASA Marshall Space Flight Center and the Air Force Research Lab. Thin film mirrors have been manufactured using surface replication casting of CP1, a polyimide material developed specifically for space applications. In the course of such efforts processing and manufacturing techniques have been developed to produce polyimide membranes with surface roughness below 1.5 nanometers rms and sub-wavelength thickness variation for both curved and flat membranes. This has led to the production of membranes optically flat to (lambda) /13 ((lambda) equals 633 nm) and curved membranes with figure error on the order of microns over half-meter diameters. This accuracy places such membranes within the demonstrated correctable range of several advanced wavefront correction technologies.
© (2001) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Brian G. Patrick, James D. Moore Jr., Whitt Brantley, Thomas Kester, and David L. Lehner "Manufacturing and evaluation of membrane optical elements for ultralightweight optics", Proc. SPIE 4451, Optical Manufacturing and Testing IV, (27 December 2001); https://doi.org/10.1117/12.453606
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KEYWORDS
Optics manufacturing

Mirrors

Manufacturing

Surface roughness

Optical components

Thin films

Glasses

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