Non-paraxial array illuminator based on a single low-resolution pixelated lens

The performance of a low-resolution pixelated lens (PL) as a spot array generator is discussed. It is proved that if the lens is encoded onto a typical pixelated spatial light modulator, it will generate a large number of uniform foci only at non-paraxial focal planes. We show, numerically and exper...

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Published in:Optics communications 2001-12, Vol.199 (5), p.345-353
Main Authors: ARRIZON, V, GONZALEZ, L. A
Format: Article
Language:English
Subjects:
Array illuminator
Display devices, liquid-crystal devices
Exact sciences and technology
Focused fields
Fundamental areas of phenomenology (including applications)
Optical elements, devices, and systems
Optics
Physics
Pixelated lens
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description The performance of a low-resolution pixelated lens (PL) as a spot array generator is discussed. It is proved that if the lens is encoded onto a typical pixelated spatial light modulator, it will generate a large number of uniform foci only at non-paraxial focal planes. We show, numerically and experimentally, that in such non-paraxial conditions the PL generates a focal plane spot array with acceptable efficiency and uniformity. Moreover, it is shown that the quality of the focal plane spot array improves when the numerical aperture of the PL is increased.
doi_str_mv 10.1016/S0030-4018(01)01596-6
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subjects Array illuminator
Display devices, liquid-crystal devices
Exact sciences and technology
Focused fields
Fundamental areas of phenomenology (including applications)
Optical elements, devices, and systems
Optics
Physics
Pixelated lens
title Non-paraxial array illuminator based on a single low-resolution pixelated lens
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