ODHNER HOLOGRAPHICS — Department of Defense SBIR Phase I: SB153-005
ODHNER HOLOGRAPHICS — SBIR Phase I award from Department of Defense.
- Amount
- $149,701
- Agency
- Department of Defense · Defense Advanced Research Projects Agency
- Program / Phase
- SBIR · Phase I
- Topic
- SB153-005
- Solicitation
- 2015.3
- NAICS
- —
- Place of performance
- NH
- Period
- 2016-03-28 → 2016-12-28
Description
A large aperture achromatic holographic Risley prism equivalent system is proposed which provides conformal and fast scanning using ultra-light weight piezoelectric motors to achieve a large scan angle.The system is very efficient, simple and easily replicated.The central null issue normally associated with Risley prisms is eliminated with a 3rd weak achromatic displacement grating between the outer achromatic prism equivalent gratings.Beam characteristics are well preserved and it can handle high optical power.Diffraction efficiency is = 93% for a single holographic phase grating.Chromatic aberration is eliminated using a compensating hologram so the scanner operates over a broad spectral range.Zoom capability and optical power can be incorporated into the system to further extend its versatility eliminating external optics and reducing the size, weight and power requirements.