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Monolithic Lenslet Modules

Monolithic Lenslet Modules (MLMs), are arrays of refractive micro lenses. Originally developed by AOA for Hartmann wavefront sensing, new applications continue to emerge.

MLM masters are fabricated by a proprietary, computer controlled mastering process developed at Adaptive Optics Associates. Many MLMs can be replicated from a single MLM master.

Features:

  • Square, hexagonal, or random arrays
  • Fill factors exceeding 98 percent
  • Spherical design
  • Focal Length from 0.150 millimeters to 300 millimeters
  • F-numbers from f/3 to f/260
  • Lenslet pitch from 15 microns to 4 millimeters
  • Individual array masters as large as 12 inches square

Advantages:

  • diffraction limited performance
  • high fill factor >98%
  • high internal transmittance
  • flexible lenslet and array geometry
  • catalog or custom arrays
  • low production cost

Custom Arrays
AOA's proprietary design process allows custom array designs as large as twelve by twelve inches. The lenslet pitch can be as small as 15 microns or as large as 4 millimeters. Other array sizes and lenslet sizes may be developed for customers on a project basis.

For customers who would like to explore the design potential of our arrays prior to a custom fabrication, we offer a 4 X 4 Sampler. This acrylic "Sampler" has a variety of micro-optic arrays compression molded in a 4"x4" acrylic plastic sheet.

Our catalog describes our standard arrays. Nearly 50 MLM master designs can be replicated in epoxy on a glass substrate or acrylic plastic.