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Proceedings Paper

Design of planar-binary optical visor
Author(s): Liping Zhao; Yee Loy Lam; Yan Zhou; Zhisheng Yun
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Paper Abstract

Compared to the holographic elements, the binary optical element (BOE) is more flexible and powerful in its design, functionality and fabrication. Better optical performance, with the advantages of compactness, lightweight, and low cost, is possible if the BOE based optical system is made monolithic. In this paper a monolithic planar-binary integrated optical visor with two couplers is proposed, designed and analyzed. One of the couplers directs the light into the glass slide substrate so that the light can travel within a planar passage via total internal reflection; the other couples the light out of the optical plate and into the wearer's eyes. Meanwhile, a binary lens array is adopted on the surface of the input end, so the visor can serve its imaging function with minimal geometrical aberrations. A bi- blazed diffractive structure of BOL is proposed to correct the chromatic aberrations and achieve achromatic imaging over the visible range.

Paper Details

Date Published: 17 September 1999
PDF: 8 pages
Proc. SPIE 3778, Gradient Index, Miniature, and Diffractive Optical Systems, (17 September 1999); doi: 10.1117/12.363752
Show Author Affiliations
Liping Zhao, Nanyang Technological Univ. (Singapore)
Yee Loy Lam, Nanyang Technological Univ. (Singapore)
Yan Zhou, Nanyang Technological Univ. (Singapore)
Zhisheng Yun, Nanyang Technological Univ. (Singapore)

Published in SPIE Proceedings Vol. 3778:
Gradient Index, Miniature, and Diffractive Optical Systems
Alan D. Kathman, Editor(s)

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