HOLOGRAPHIC INTERFEROMETER FOR OPTICAL MEASUREMENT

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N/A
Agency Tracking Number: 12231
Amount: $49,996.00
Phase: Phase I
Program: SBIR
Awards Year: 1990
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Apa Optics Inc
2950 Ne 84th Ln, Blaine, MN, 55434
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Dr Steven M Arnold
 (612) 784-4995
Business Contact
Phone: () -
Research Institution
N/A
Abstract
MULTISPECTRUM GUIDANCE SYSTEMS ARE BEING DEVELOPED WHICH CONTAIN EXTREMELY SMALL, NON-SPHERICAL OPTICAL COMPONENTS FOR LONG WAVELENGTH IR SEEKERS. THE NAVY REQUIRES A NONCONTACT METHOD OF TESTING THESE PARTS FOR CONFORMANCE TO SPECIFICATIONS PRIOR TO THEIR ASSEMBLY INTO THE SYSTEM. APA OPTICS PROPOSES TO DEVELOP AN OPTICAL INTERFEROMETER WHICH WILL USE LOW COST COMPUTER GENERATED HOLOGRAMS (CGH) AS NULL LENSES. AN ALTERNATIVE APPROACH IS THE LASER STYLUS PROFILOMETER WHICH USES A FOCUSED LASER BEAM TO LABORIOUSLY SAMPLE A TEST SURFACE MOUNTED ON A 3-AXIS TRANSLATION STAGE. BY COMPARISON, AN OPTICAL INTERFEROMETER OFFERS THE ADVANTAGES OF RAPID, FULL APERTURE TESTING OF NOMINALLY IDENTICAL PARTS FOLLOWING AN INITIAL SETUP. MOREOVER, THE OPTICAL INTERFEROMETER CAN BE CONFIGURED TO DIRECTLY MEASURE OPTICAL PERFORMANCE, WHEREAS AN OPTICAL PROFILOMETER CAN ONLY MEASURE SURFACE ACCURACY. AFTER STUDYING THE TESTING REQUIREMENTS, APA OPTICS WILL DESIGN A HOLOGRAPHIC INTERFEROMETER TO MEET ALL REQUIREMENTS. THE APPARATUS WILL BE BUILT AND TESTED UNDER PHASE II.

* information listed above is at the time of submission.

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