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2010-12-10T17:18:50+01:00
2010-12-02T02:05:35Z
2010-12-10T17:18:50+01:00
Jouve S.A., TaggedPDF v1.27
EP-0198716-A3-19881123
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EP-0198716-A3-19881123
A laser with a single internally or externally established polarization plane is passed firstthrough a liquid crystal attenuation control and thence to a linear polarization filter whose polarization plane is orthogonal to the plane of the laser. The polarization of the beam is rotated an amount determined by the voltage applied to the electrodes of the liquid crystal device. The degree of such rotation determines the amplitude of the component parallel to and hence passed by the linear polarization filter.
A laser with a single internally or externally established polarization plane is passed firstthrough a liquid crystal attenuation control and thence to a linear polarization filter whose polarization plane is orthogonal to the plane of the laser. The polarization of the beam is rotated an amount determined by the voltage applied to the electrodes of the liquid crystal device. The degree of such rotation determines the amplitude of the component parallel to and hence passed by the linear polarization filter.
en
European Patent Office
EP0198716
EP 0198716
G02F 01/13
Variable laser beam attenuation
Variable laser beam attenuation - European Patent Office - EP 0198716 A3
Variable laser beam attenuation - European Patent Office - EP 0198716 A3
Adobe PDF Library 8.0
"EP0198716"; "EP 0198716"; "G02F 01/13"; "Variable laser beam attenuation"
1.4
1
B
2
EP
0198716
A3
1988-11-23
86302824
1986-04-16
US
724217
1985-04-17
G02F 01/13
LAAKMANN ELECTRO-OPTICS INC.
Levy, Michael Brent
Wilson, Stephen Sterling
Colgan, Stephen James et al
Variable laser beam attenuation
Variable Laserstrahlabschwächung
Variable laser beam attenuation
Atténuation variable d'un faisceau laser
A laser with a single internally or externally established polarization plane is passed firstthrough a liquid crystal attenuation control and thence to a linear polarization filter whose polarization plane is orthogonal to the plane of the laser. The polarization of the beam is rotated an amount determined by the voltage applied to the electrodes of the liquid crystal device. The degree of such rotation determines the amplitude of the component parallel to and hence passed by the linear polarization filter.
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