NASA SBIR 2008 Solicitation


PROPOSAL NUMBER: 08-2 S2.04-9926
SUBTOPIC TITLE: Optical Devices for Starlight Detection and Wavefront Analysis
PROPOSAL TITLE: Low Cost Very Large Diamond Turned Metal Mirror

SMALL BUSINESS CONCERN (Firm Name, Mail Address, City/State/Zip, Phone)
Dallas Optical Systems, Inc.
1790 Connie Lane
Rockwall, TX 75032 - 6708
(972) 564-1156

PRINCIPAL INVESTIGATOR/PROJECT MANAGER (Name, E-mail, Mail Address, City/State/Zip, Phone)
John Casstevens
1790 Connie Lane
Rockwall, TX 75032 - 6708
(972) 564-1156

Expected Technology Readiness Level (TRL) upon completion of contract: 5 to 6

TECHNICAL ABSTRACT (Limit 2000 characters, approximately 200 words)
Electrolytic plating of high phosphorus nickel phosphorus alloy will encapsulate a machined mirror substrate master made of fine cell plastic foam such as polystyrene that has been sealed and made electrically conductive with painted-on coatings. After encapsulation with up to one millimeter of NiP metal holes will be drilled and the plastic master will be dissolved with a solvent such as acetone and removed. Prior to encapsulation plating round or other cross section tubes are inserted thru holes in the plastic foam so that they are incorporated into the electroformed mirror structure when the master is encapsulated with more NiP. The tubes which connect the front and back surfaces of the mirror are made by electroforming with the same NiP alloy. The finished mirror substrate will be diamond turned and the very low cutting force diamond turning process will allow fabrication of a very thin mirror face plate without print through since there is only a very low pressure on the mirror from diamond turning. Machining of plastic foam is accomplished very quickly and the foam material is very low cost. In a production mode the expendable foam plastic masters could themselves be molded. The size of the mirrors is only limited by the capacities of the plating bath and the diamond turning machine. The process is applicable to any optical contour and to the manufacture of off-axis segments.

POTENTIAL NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
This mirror fabrication process will allow low cost telescope and camera optical mirrors to be quickly fabricated for visible and IR optical instruments for NASA missions.

POTENTIAL NON-NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
his method of fabricating lightweight metal mirrors is suitable for use in the manufacture of optical instruments for military and scientific applications requiring any type of aspheric or flat mirror optical components.

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.

Beamed Energy
Large Antennas and Telescopes
Optical & Photonic Materials
Photovoltaic Conversion
Telemetry, Tracking and Control

Form Generated on 08-03-09 13:26