12 June 1985 The Holographic Honeycomb Microlens
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Proceedings Volume 0523, Applications of Holography; (1985) https://doi.org/10.1117/12.946290
Event: 1985 Los Angeles Technical Symposium, 1985, Los Angeles, United States
A honeycomb close-packed microstructure can be recorded in a positive photoresist layer by a simultaneous exposure of three coherent laser beams. The structure consists of parabolic shaped depressions in the surface. By replication and embossing techniques, it is possible to impress the mirror image of the microstructure into plastic, such that the top surface consists of parabolic shaped posts, or microlenses. The size of each microlens can be varied from around one micrometer to a millimeter or more. There are wide-ranging applications for such regularly-spaced and precise structures, extending from solar concentrators to three-dimensional imaging devices.
© (1985) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
James J. Cowan, "The Holographic Honeycomb Microlens", Proc. SPIE 0523, Applications of Holography, (12 June 1985); doi: 10.1117/12.946290; https://doi.org/10.1117/12.946290

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