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DEVICE FOR GENERATING TEMPORALLY OFFSET , SPATIALLY MODULATED ILLUMINATION REGIONS

Berrocal, Edouard LU ; Kristensson, Elias LU and Berg, Thomas (2019) US20190129155A1
Abstract
A device is provided for generating temporally offset , spa tially modulated illumination regions (22 , 22 ') having peri odic modulation patterns that are phase - shifted with respect to one another . The device has two pulsed laser sources (121 , 122) that are triggerable in a manner temporally offset with respect to one another and that generate two laser beams pulsed in a temporally offset manner . Intensity modulators (16) are provided for spatially periodic intensity modulation of the laser beams perpendicular to the direction of propa gation thereof . A beam superimposing device (126) com bines the beam paths of the laser beams in a common beam path section and a beam shaper (20 , 20 ') shapes the illumi nation region shaping. ... (More)
A device is provided for generating temporally offset , spa tially modulated illumination regions (22 , 22 ') having peri odic modulation patterns that are phase - shifted with respect to one another . The device has two pulsed laser sources (121 , 122) that are triggerable in a manner temporally offset with respect to one another and that generate two laser beams pulsed in a temporally offset manner . Intensity modulators (16) are provided for spatially periodic intensity modulation of the laser beams perpendicular to the direction of propa gation thereof . A beam superimposing device (126) com bines the beam paths of the laser beams in a common beam path section and a beam shaper (20 , 20 ') shapes the illumi nation region shaping. The common beam path section is configured so that the laser beams combined by the beam superimposing device (126) are polarized differently and the intensity modulators are upstream of an optically anisotropic beam splitter (18). (Less)
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inventor
LU ; LU and Berg, Thomas
organization
publishing date
type
Patent
publication status
published
subject
patent number
US20190129155A1
language
English
LU publication?
yes
id
a220c0b4-e2bb-441b-8331-3eb7beed52e8
alternative location
https://patents.google.com/patent/US20190129155A1/en?oq=US20190129155A1
date added to LUP
2019-05-21 17:03:58
date last changed
2020-12-30 08:53:39
@misc{a220c0b4-e2bb-441b-8331-3eb7beed52e8,
  abstract     = {{A device is provided for generating temporally offset , spa tially modulated illumination regions (22 , 22 ') having peri odic modulation patterns that are phase - shifted with respect to one another . The device has two pulsed laser sources (121 , 122) that are triggerable in a manner temporally offset with respect to one another and that generate two laser beams pulsed in  a temporally offset manner . Intensity modulators (16) are provided for spatially periodic intensity modulation of the laser beams perpendicular to the direction of propa gation thereof . A beam  superimposing device (126) com bines the beam paths of the laser beams in  a common beam path  section and a beam shaper (20 , 20 ') shapes the illumi nation region shaping.  The common beam  path section is configured so  that the laser beams combined by the beam superimposing device (126) are polarized differently and the intensity modulators are upstream of an optically anisotropic beam  splitter (18).}},
  author       = {{Berrocal, Edouard and Kristensson, Elias and Berg, Thomas}},
  language     = {{eng}},
  month        = {{05}},
  note         = {{Patent, Patent Number: US20190129155A1}},
  title        = {{DEVICE FOR GENERATING TEMPORALLY OFFSET , SPATIALLY MODULATED ILLUMINATION REGIONS}},
  url          = {{https://patents.google.com/patent/US20190129155A1/en?oq=US20190129155A1}},
  year         = {{2019}},
}