NASA SBIR 2005 Solicitation

FORM B - PROPOSAL SUMMARY


PROPOSAL NUMBER:05 S4.04-9574
SUBTOPIC TITLE:Optics and Optical Telescopes (including X-ray, UV, Visual, IR)
PROPOSAL TITLE:Edge Control in Large Segmented Optics Using Zeeko Polishing Technology

SMALL BUSINESS CONCERN (Firm Name, Mail Address, City/State/Zip, Phone)
Zeeko Technologies, LLC
3000 Kent Ave. D1-103
West Lafayette ,IN 47906 - 1075
(765) 775 - 1010

PRINCIPAL INVESTIGATOR/PROJECT MANAGER (Name, E-mail, Mail Address, City/State/Zip, Phone)
John   Kelchner
john.kelchner@zeekotechnologies.com
3000 Kent Ave. D1-103
West Lafayette, IN  47906 -1075
(765) 775 - 1010

TECHNICAL ABSTRACT (LIMIT 200 WORDS)
The fabrication of very large optical telescopes for space astronomy can be prohibitively costly due to the immense weight and size of monolithic primary mirrors. The cost of these telescopes can be reduced by the use of a segmented primary mirror. The next generation of large segmented mirrors must have little or no edge exclusion. The Zeeko Precessions polishing is a sub-aperture process that has been developed for the control of form and texture in the production of aspheric and other optical surfaces. The Precessions process is deterministic and provides dramatic reductions in production time due to its high removal rate and repeatability. Similar to other processes, the Precessions process can produce an edge effect due to the polishing spot changing when in extends beyond the edge of a part. Currently, the control software assumes no change in the spot size or shape when it moves beyond the edge. The primary goal of this Phase I project is to understand process differences at the edge and develop an approach to minimize them. Results from Phase I will provide better understanding of the polishing influence function which will serve as a foundation for a Phase II study on power spectral density (PSD) control and production of prototype optics that demonstrate advancement of the state-of-the-art in minimizing edge exclusion.

POTENTIAL NASA COMMERCIAL APPLICATIONS (LIMIT 150 WORDS)
Improvements to edge polishing technology provide critical input to NASA studies of the TPFC (Terrestrial Planet Finder - Coronagraph), TPFI (Terrestrial Planet Finder ? Interferometer), SAFIR (Single Aperture Far-Infrared Observatory) and TMST (Thirty Meter Space Telescope) missions. Reducing edge masks (i.e., gaps in the primary mirror) below the millimeter scale is a crucial technology needed to prove the feasibility of these future missions. In addition, many ground based extremely large telescope projects including the TMT (Thirty Meter Telescope, formerly the CELT ? California Extremely Large Telescope) and the OWL (Overwhelmingly Large Telescope) could gain from the proposed research.

POTENTIAL NON-NASA COMMERCIAL APPLICATIONS (LIMIT 150 WORDS)
In addition to the large segmented telescope projects, other industries that require large high precision optical surfaces could benefit from the successful completion of this Phase I project such as the semiconductor manufacturing industry. Within this industry, next generation EUV (Extreme Ultraviolet Lithography) and the polishing of semiconductor wafers and photomask substrates could gain from the proposed research on edge/PSD control.

NASA's technology taxonomy has been developed by the SBIR-STTR program to disseminate awareness of proposed and awarded R/R&D in the agency. It is a listing of over 100 technologies, sorted into broad categories, of interest to NASA.

TECHNOLOGY TAXONOMY MAPPING
Optical & Photonic Materials


Form Printed on 09-19-05 13:12