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公开(公告)号:EP3757533B1
公开(公告)日:2022-06-01
申请号:EP20182140.2
申请日:2020-06-25
Inventor: Vuorinen, Rami
IPC: G01J3/42 , G01J3/02 , G01N21/03 , G01J3/453 , G01N21/3504
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13.
公开(公告)号:EP3887783A1
公开(公告)日:2021-10-06
申请号:EP19806119.4
申请日:2019-11-12
Applicant: Robert Bosch GmbH
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14.
公开(公告)号:EP3870943A1
公开(公告)日:2021-09-01
申请号:EP19794929.0
申请日:2019-10-22
Applicant: Robert Bosch GmbH
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公开(公告)号:EP1756536B1
公开(公告)日:2021-09-01
申请号:EP05739533.7
申请日:2005-05-17
Inventor: ARNVIDARSON, Börkur , LARSEN, Hans
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公开(公告)号:EP3707463A1
公开(公告)日:2020-09-16
申请号:EP18872648.3
申请日:2018-11-06
Inventor: SUCHOWSKI, Haim , LEVANON, Assaf , LIFSHITZ, Erga , MREJEN, Michael
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公开(公告)号:EP3559618A1
公开(公告)日:2019-10-30
申请号:EP17826606.0
申请日:2017-12-21
Inventor: VISSER, Huibert , VAN BRUG, Hedser
IPC: G01J3/453
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公开(公告)号:EP3035013B1
公开(公告)日:2019-08-28
申请号:EP15198314.5
申请日:2015-12-07
Applicant: Palo Alto Research Center, Incorporated
Inventor: HEGYI, Alex , MARTINI, Joerg , KIESEL, Peter , BIEGELSEN, David K.
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19.
公开(公告)号:EP3505889A1
公开(公告)日:2019-07-03
申请号:EP18212123.6
申请日:2018-12-12
Applicant: Palo Alto Research Center Incorporated
Inventor: HEGYI, Alex
Abstract: A voltage is applied to a liquid-crystal variable retarder that monotonically changes a retardance and changes a first derivative with respect to time of the retardance of the liquid-crystal variable retarder over a time period. An interferogram of light passing through the liquid-crystal variable retarder is measured during the time period.
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公开(公告)号:EP3492968A1
公开(公告)日:2019-06-05
申请号:EP18209312.0
申请日:2018-11-29
Applicant: Palo Alto Research Center Incorporated
Inventor: HEGYI, Alex
IPC: G02F1/133 , G02B5/30 , G02B27/00 , G05B6/00 , G05B11/00 , G05B13/00 , G01J3/28 , G01J3/45 , G01J3/453 , H04N5/30 , H04N5/33
Abstract: A liquid-crystal variable retarder has first and second liquid-crystal cells with respective first and second thicknesses, the second thickness being less than the first thickness. A feedback sensor provides a feedback signal indicative of a retardance of the liquid-crystal variable retarder. A controller is coupled to the feedback sensor and the first and second liquid-crystal cells. The controller is operable to apply a first signal to the first liquid-crystal cell based on a target retardance trajectory and a feedforward control model. The controller applies a second signal to the second liquid-crystal cell based on the feedback signal and the target retardance trajectory.
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