TY - GEN
T1 - Micro-Alvarez lenses for a variable dynamic range Shack-Hartmann wavefront sensor
AU - Acosta, Eva
AU - Sasian, Jose
PY - 2013
Y1 - 2013
N2 - The well-known Alvarez lenses consist of a pair of aspheric surfaces such that their relative lateral displacement results in an equivalent quadratic phase inducing lens that can be tuned from positive to negative powers by controlling the amount and direction of the displacements. In applications requiring a range of only positive powers, the use of the Alvarez lenses in their original design results in an inefficient use of plate size and equivalent lens aperture. We show formulas to shape the surfaces overcoming this inefficient problem. The design parameters to construct an array of micro-Alvarez lenses to compose a Shack-Hartmann wavefront sensor with variable dynamic range is given.
AB - The well-known Alvarez lenses consist of a pair of aspheric surfaces such that their relative lateral displacement results in an equivalent quadratic phase inducing lens that can be tuned from positive to negative powers by controlling the amount and direction of the displacements. In applications requiring a range of only positive powers, the use of the Alvarez lenses in their original design results in an inefficient use of plate size and equivalent lens aperture. We show formulas to shape the surfaces overcoming this inefficient problem. The design parameters to construct an array of micro-Alvarez lenses to compose a Shack-Hartmann wavefront sensor with variable dynamic range is given.
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M3 - Conference contribution
AN - SCOPUS:84894190385
SN - 9784863483453
T3 - Technical Digest of the 18th Microoptics Conference, MOC 2013
BT - Technical Digest of the 18th Microoptics Conference, MOC 2013
T2 - 2013 18th Microoptics Conference, MOC 2013
Y2 - 27 October 2013 through 30 October 2013
ER -