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Lenslet array systems and methods

  • US 6,381,072 B1
  • Filed: 07/20/2000
  • Issued: 04/30/2002
  • Est. Priority Date: 01/23/1998
  • Status: Expired due to Fees
First Claim
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1. A stacked array magnifier for forming a magnified image of an object, comprising:

  • one or more non-refractive lenslet arrays and one or more refractive lenslet arrays to form a plurality of lenslet channels, each lenslet channel having at least one refractive lenslet and at least one non-refractive lenslet, the lenslet channels between at least two adjacent arrays being sloped relative to an optical axis between the object and the image, the sloped lenslet channels further from the optical axis having larger slopes than the sloped lenslet channels closer to the optical axis, the slopes providing selective magnification between the object and the image, wherein the lenslet arrays form a stack between a first surface facing the object and a second surface facing the image, the lenslet channels being constructed and arranged to form an intermediate image at a intermediate image plane between the first and second surfaces, and further comprising a stop for one or more of (a) reducing stray light, (b) reducing crosstalk, (c) improving modulation transfer function efficiency, and (d) improving contrast transfer function efficiency of the image, the baffling being located at about the intermediate image plane.

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