Autor Tema: Beam-Shaping Diffuser  (Posjeta: 170 vremena)

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Offline greg

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Offline Šegi

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Odg: Beam-Shaping Diffuser
« Odgovori #1 u: 22.10.2017. u 12:18:35 sati »
Mrak film - tnx Greg, ovo je jaaaaaako zanimljivo  [71*

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Odg: Beam-Shaping Diffuser
« Odgovori #2 u: 22.10.2017. u 13:34:45 sati »
Fora. A o čem ovisi izrada oblika difuzera? Ne bi se mogao koristiti recimo obični fotografski difuzer filter?
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Offline greg

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Odg: Beam-Shaping Diffuser
« Odgovori #3 u: 22.10.2017. u 22:52:36 sati »
''Unlike the other types of diffusers which only offer statis-
tical control of the surface features, diffusers which precisely
control the shape, size, and location of its surface features in a
deterministic manner have the highest degree of control over
their output. Such diffusers, capable of molding the output to
a desired intensity profile and light distribution pattern..''
..are composed of individually manipulated unit cells or microlenslets
By precisely controlling the design and manufac-
turing process, a surface can be engineered to produce a de-
sired intensity profile and light distribution pattern for a given
input beam.  To ensure that the diffuser output is stable to-
wards varying beam input, the size, shape, and location of the
microlenslets are varied according to a pre-defined probabil-
ity distribution chosen to implement the desired beam shap-
ing functions (Sales et al. 2004). Additionally, this microlens
distribution can be carefully designed to avoid discontinuities
and minimize scattered light and diffraction artifacts from the
output..''