THORLABS WFS150, Руководство по эксплуатации

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111 Appendix
© <2007> ... Thorlabs GmbH
7.2
Microlens Data
The Thorlabs uses high-quality microlens arrays for its Wavefront Sensors
WFS150 / WFS150C which are best suited for Shack-Hartmann Wavefront
Sensor applications. Both lenslets are made from fused silica for excellent
transmission characteristics from the deep UV to IR and have a plano-convex
shape that allows nearly refraction limited spots.
The lenses are formed using photolithographic techniques based on
semiconductor processing technology, which allows for excellent uniformity in the
shape and position of each microlens, unlike some microlens arrays produced
from molded epoxy.
The two Wavefront Sensor models WFS150 and WFS150C utilize the microlens
arrays MLA150-7AR and MLA150-5C, respectively. The MLA150-5C has a
chrome mask that blocks light from being transmitted unless it goes through a
microlens and therefore increases image contrast. The MLA150-7AR has a
broadband AR coating to reduce surface reflections in the 400-900nm spectral
region to below 1%.
Microlens Array MLA150-5C