OMNIDIRECTIONAL OPTICAL SYSTEM FOR SHORT RANGE NAVIGATIONAL AIDS

Period of Performance: 01/01/1991 - 12/31/1991

$50K

Phase 1 SBIR

Recipient Firm

Sets Technology, Inc.
300 Kahelu Ave Suite 10
Mililani, HI 96789
Principal Investigator

Abstract

AN OMNIDIRECTIONAL OPTICAL SYSTEM THAT DIRECTS LIGHT FROM AN EXTENDED SOURCE (TUBULAR IN CIRCULAR FORMAT) INTO A HORIZONTAL PLANE WITH A HALF POWER VERTICAL DIVERGENCE OF +4.5 DEGREES WITH A MAXIMUM MEAN HORIZONTAL INTENSITY IS DESIRED FOR THE IMPROVEMENT OF MARITIME (AND OTHER) NAVIGATION. THE OBJECTIVE OF THIS PROPOSAL IS TO INVESTIGATE NOVEL METHODS OF LIGHT PROJECTION USING NON-IMAGING OPTICAL SURFACES, WHICH CAN REACH THE THEORETICAL LIMITS OF RADIATIVE TRANSPORT AND BE MORE EFFICIENT THAN CONVENTIONAL OPTICS, TO DESIGN INNOVATIVE, CANDIDATE NON-IMAGING LIGHT PROJECTING SYSTEMS THAT MEET OR EXCEED THE DESIRED REQUIREMENTS AND SELECT THE MOST APPROPRIATE OPTICAL DESIGN FOR PROTOTYPE DESIGN. THE ADVANTAGES OF A NONIMAGING OPTICS SYSTEM ARE: (1) NO MOVING PARTS FOR OMNIDIRECTIONAL COVERAGE;(2) ACCURATELY CONTROLLEDVERTICAL DISPERSION; (3) MAXIMIZED INTENSITY; (4) EASY ASSEMBLY AND SERVICING; (5) LOW PROFILE; AND (6) STACKING FOR SEQUENTIALLY FLASHED MOTION SIMULATION. THE PHASE I EFFORT WILL BE CARRIED OUT BY SETS TECHNOLOGY PERSONNEL IN THE FOLLOWING AREAS; REQUIREMENTS STUDY AND ASSESSMENT, NON-IMAGING OPTICAL DESIGN, COMPARISON WITH CONVENTIONAL OPTICAL DESIGNS, DEVELOPMENT OF A CANDIDATE MECHANICAL SUPPORT DESIGN, OPTICAL EFFICIENCY, AND UTILITY AND FEASIBILITY ASSESSMENTS. THE RESULTS OF THE PHASE I EFFORT WILL BE DIRECTLY APPLICABLE TO A PHASE II PROTOTYPE.