Infrared Fisheye Optics

Period of Performance: 01/26/1998 - 01/25/2000

$549K

Phase 2 SBIR

Recipient Firm

Optics 1, Inc.
3050 E Hillcrest DriveSuite 100
Westlake Village, CA 91362
Principal Investigator

Research Topics

Abstract

This Phase II SBIR will design, build, and test a series of ultra-wide angle infrared fisheye lenses suitable for missile fuzing applications. In particular, these lenses will provide terminal guidance and aimpoint selection for a programmable directional warhead. These lenses will operate in the LWIR spectral waveband and will image a full 180 degree hemisphere. Emphasis will be placed on design simplicity and reliability, while maintaining near diffraction-limited performance over the entire field, carefully controlling radial distortion, and maintaining very stringent packaging requirements. In addition, in order to maintain system sensitivity, very low f/number and 100% cold stop requirements will be met by the design. Environmental effects such as aero-thermal heating and ghost images/stray light present significant, and as yet unknown, demands on the lens. The overall program approach will design, model and fabricate a prototype unit and will extensively test this unit. The results of these tests will be used to implement changes in design, modeling, and fabrication/assembly methods for a second unit. The second unit will be fabricated and tested as completely as practically possible against the environmental specifications. Further recommendations from testing of the second unit will be documented enabling smooth transition to Phase III activities.