公开(公告)号：WO2021262343A1

公开(公告)日：2021-12-30

申请号：PCT/US2021/032657

申请日：2021-05-17

Applicant: MICROSOFT TECHNOLOGY LICENSING, LLC

Inventor： POWELL, Karlton David ,  PRADEEP, Vivek

IPC: G01J3/02 ,  G01J3/28 ,  G01J3/32 ,  H04N5/33 ,  G01J3/12 ,  G01J2003/1213 ,  G01J2003/2826 ,  G01J3/0208 ,  G01J3/0229 ,  G01J3/108 ,  G01J3/2803 ,  G01J3/2823

Abstract: An optical system, comprising a multi-spectral optical element, a switchable filter, a dual bandpass filter, and a sensor. The multi-spectral optical element receives light in at least a first spectral band and a second spectral band. The dual bandpass filter filters out wavelengths of light in a transition region of the switchable filter between the first spectral band and the second spectral band. The switchable filter filters light received from the dual bandpass filter in the first spectral band in a first mode where the switchable filter transmits light in the first spectral band and in a second mode where the switchable filter does not transmit light in the first spectral band. The sensor is disposed at an image plane, and the multi-spectral optical element is configured to produce a modulation transfer function value that is a above a predetermined threshold for each of the spectral bands.

公开(公告)号：WO2023057293A1

公开(公告)日：2023-04-13

申请号：PCT/EP2022/077084

申请日：2022-09-29

Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.

Inventor： MOLTER, Daniel ,  PFEIFFER, Tobias

IPC: G01J3/10 ,  G01J3/42 ,  G01N21/3581 ,  G02F1/35 ,  G02F1/39 ,  G01J3/108 ,  G02F1/353 ,  G02F1/397 ,  G02F2203/13

Abstract: Die vorliegende Erfindung betrifft ein Verfahren und eine Vorrichtung zur phasensensitiven Detektion elektromagnetischer Terahertz-Strahlung. Um ein Verfahren bzw. eine Vorrichtung zur phasensensitiven Detektion von Terahertz-Strahlung bereitzustellen, welche die Erfassung von Amplitude und Phase der Terahertz-Strahlung mit kommerziell erhältlichen Detektoren im sichtbaren Bereich ermöglichen, wird erfindungsgemäß vorgeschlagen, eine elektromagnetische Basisstrahlung in eine Pump- und eine Referenzstrahlung aufzuspalten, wobei die Pumpstrahlung zur Erzeugung einer Terahertz-Strahlung dient und wobei die Referenzstrahlung nochmals in eine Peakstrahlung und eine Reststrahlung aufgespalten wird. Die Peakstrahlung wird anschließend mit der Terahertz-Strahlung unter Bildung einer Mischstrahlung gemischt, wobei die Mischstrahlung, die die Informationen der Terahertz-Strahlung in Nebenbändern enthält, mit der Reststrahlung räumlich überlagert wird, sodass aus einem erfassten Interferenzsignal die Phasenlage der Terahertz-Strahlung ausgewertet werden kann.

公开(公告)号：WO2021262343A8

公开(公告)日：2021-12-30

申请号：PCT/US2021/032657

申请日：2021-05-17

Applicant: MICROSOFT TECHNOLOGY LICENSING, LLC

Inventor： POWELL, Karlton David ,  PRADEEP, Vivek

IPC: G01J3/02 ,  G01J3/28 ,  G01J3/32 ,  H04N5/33 ,  G01J3/12 ,  G01J2003/1213 ,  G01J2003/2826 ,  G01J3/0208 ,  G01J3/0229 ,  G01J3/108 ,  G01J3/2803 ,  G01J3/2823

Abstract: An optical system, comprising a multi-spectral optical element, a switchable filter, a dual bandpass filter, and a sensor. The multi-spectral optical element receives light in at least a first spectral band and a second spectral band. The dual bandpass filter filters out wavelengths of light in a transition region of the switchable filter between the first spectral band and the second spectral band. The switchable filter filters light received from the dual bandpass filter in the first spectral band in a first mode where the switchable filter transmits light in the first spectral band and in a second mode where the switchable filter does not transmit light in the first spectral band. The sensor is disposed at an image plane, and the multi-spectral optical element is configured to produce a modulation transfer function value that is a above a predetermined threshold for each of the spectral bands.

公开(公告)号：WO2021247386A1

公开(公告)日：2021-12-09

申请号：PCT/US2021/034700

申请日：2021-05-28

Applicant: RCE TECHNOLOGIES, INC.

Inventor： TITUS, Jitto ,  BURMAN, Atandra

IPC: A61B5/024 ,  A61B5/1455 ,  G01N21/33 ,  G01N21/35 ,  G01N21/49 ,  A61B2562/0238 ,  A61B5/14546 ,  A61B5/1495 ,  G01J3/0202 ,  G01J3/021 ,  G01J3/0264 ,  G01J3/0272 ,  G01J3/0291 ,  G01J3/108 ,  G01J3/42 ,  G01N21/552 ,  G01N2201/0221 ,  G01N2201/0696

Abstract: Transdermal optical sensing systems and methods of use are described. The systems include a main body, an internal reflection element arranged within the main body, with an internal reflection element surface exposed for contact with an epidermis, an optical source configured to project light into the internal reflection element, an optical detector arranged to detect reflected light that reflects internally within the internal reflection element from the internal reflection element surface, a controller configured to measure the light at the optical detector to determine the presence of one or more compounds within the epidermis, and a retention member attached to the main body, the retention member configured to wrap about a wrist of a patient.