Microlens array fabricated in surface relief with high numerical aperture

Hon Wo Lau; Neil A. Davies; Malcolm McCormick

doi:10.1117/12.49386

1 November 1991 Microlens array fabricated in surface relief with high numerical aperture

Hon Wo Lau, Neil A. Davies, Malcolm McCormick

Proceedings Volume 1544, Miniature and Micro-Optics: Fabrication and System Applications; (1991) https://doi.org/10.1117/12.49386
Event: San Diego, '91, 1991, San Diego, CA, United States

Abstract

Microlens arrays in surface relief having a pitch of 125 micrometers have been fabricated. The microlens arrays have excellent uniformity and a range of focal lengths can be fabricated. The microlenses can be directly formed on a chromium pattern or on plane glass by contact printing. The route to replication is via electroforming and subsequent embossing in clear material. By registering two microlens arrays a 3-D image can be formed at a 1:1 conjugate distance.

Citation Download Citation

Hon Wo Lau, Neil A. Davies, and Malcolm McCormick "Microlens array fabricated in surface relief with high numerical aperture", Proc. SPIE 1544, Miniature and Micro-Optics: Fabrication and System Applications, (1 November 1991); https://doi.org/10.1117/12.49386

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