USA flag logo/image

An Official Website of the United States Government

Edge Control in Large Segmented Optics Using Zeeko Polishing Technology

Award Information

Agency:
National Aeronautics and Space Administration
Branch:
N/A
Award ID:
77728
Program Year/Program:
2006 / SBIR
Agency Tracking Number:
053428
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Zeeko Technologies, LLC
3495 Kent Avenue, K100 West Lafayette, IN 47906-5391
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2006
Title: Edge Control in Large Segmented Optics Using Zeeko Polishing Technology
Agency: NASA
Contract: NNM06AA35C
Award Amount: $62,279.00
 

Abstract:

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.

Principal Investigator:

John Kelchner
Principal Investigator
7657751010
john.kelchner@zeekotechnologies.com

Business Contact:

John Kelchner
Business Official
7657751010
john.kelchner@zeekotechnologies.com
Small Business Information at Submission:

Zeeko Technologies, LLC
3000 Kent Ave. D1-103 West Lafayette, IN 47906

EIN/Tax ID: 201823185
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No