Accession Number : ADA297066

Title :   Novel Cost-Effective Process for the Replication of Hybrid Diffractive/Refractive Optical Element.

Descriptive Note : Final rept. 30 Sep 94-29 Jun 95,

Corporate Author : GELTECH INC ALACHUA FL

Personal Author(s) : Moreshead, William ; Nogues, Jean-Luc ; Bernacki, Bruce

PDF Url : ADA297066

Report Date : 27 JUL 1995

Pagination or Media Count : 26

Abstract : Hybrid optics are optical systems that integrate diffractive optical surfaces into lenses, resulting in designs that minimize aberrations, reduce the cost, weight, and complexity of the system, while improving the overall optical efficiency. In the Phase I STTR program described in this report GELTECH, Inc., and the Oak Ridge National Laboratory successfully demonstrated the feasibility of producing just such a diffractive/refractive hybrid optic in silica glass by a replication process which lends itself to high volume, low cost production. The technical objectives accomplished in Phase I were: (1) design and numerical modeling of a hybrid diffractive/refractive optic, (2) fabrication of the optic master using diamond turning, (3) design and fabrication of optical molds, (4) fabrication of silica glass prototypes, and (5) characterization of the prototypes for replication accuracy and optical performance. Potential applications of hybrid optics include military, space, and high radiation applications, and consumer and medical products. (MM)

Descriptors :   *DIFFRACTION, *REFRACTION, *OPTICAL LENSES, MATHEMATICAL MODELS, COST EFFECTIVENESS, FABRICATION, DIAMONDS, OPTICAL MATERIALS, LIGHTWEIGHT, HYBRID SYSTEMS, DESIGN CRITERIA, SILICA GLASS, MOLDING TECHNIQUES.

Subject Categories : Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE