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Optics question: Simple way to transform a parallel bundle of collimated beamlets into a converging (diverging) bundle of collimated beamlets?
I'm searching for an optical element that converts a parallel bundle of individually collimated beamlets into a converging or diverging bundle of still collimated beamlets (or vice versa). So ...
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Refractive Index of a Aspheric lens
I have the following specifications of an aspheric lens:
AL5040-B - Ø50 mm S-LAH64, f = 40 mm, NA = 0.54, ARC: 650-1050 nm
Is there a way to calculate or identify the refractive index of the lens ...
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Making a lense using an array?
Would it be possible to build a lense out of array elements with a higher refractive index inter spaced with void elements eg a matrix of glass with air.
I imagine that the spacing would have to be ...
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