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1 November 1991 Microlens array fabricated in surface relief with high numerical aperture
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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.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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);

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