公开(公告)号：US3602597A

公开(公告)日：1971-08-31

申请号：US3602597D

申请日：1969-09-17

申请人： DURRUM INSTR

发明人： SPROUL DONALD P

IPC分类号： G01N21/19 ,  G01N21/40

CPC分类号： G01N21/19

摘要： A circular dichroism (CD) and/or optical rotatory dispersion (ORD) measuring apparatus having half-wave retardation means and a reference cell inserted in the light beam to convert the apparatus to measure differential CD and/or ORD is disclosed.

公开(公告)号：US3586443A

公开(公告)日：1971-06-22

申请号：US3586443D

申请日：1968-04-22

申请人： CARY INSTRUMENTS

发明人： HOOPER GERALD E

IPC分类号： G01N21/19 ,  G01N21/40

CPC分类号： G01N21/19

摘要： The disclosure concerns the provision of means for significantly reducing certain inaccuracies associated with circular dichroism measurement, and in which a certain signal (alternately proportional to sample characteristic transmission values for predominantly right-circularly polarized light and leftcircularly polarized light) is processed to produce a modified signal proportional (within a predetermined additive constant) to the logarithm of the certain signal, the AC component of the modified signal being used in indicating the value of circular dichroism.

公开(公告)号：US3540827A

公开(公告)日：1970-11-17

申请号：US3540827D

申请日：1967-05-26

申请人： CENTRE NAT RECH SCIENT

发明人： BADOZ JACQUES ,  BILLARDON MICHEL

IPC分类号： G01J4/04 ,  G01N21/19 ,  G02F1/01 ,  G01N21/40

CPC分类号： G02F1/0131 ,  G01N21/19

公开(公告)号：US3512001A

公开(公告)日：1970-05-12

申请号：US3512001D

申请日：1966-09-22

申请人： DURRUM INSTR

发明人： SPROUL DONALD PATRICK

IPC分类号： G01J3/42 ,  G01N21/19 ,  G01N21/22 ,  G01N21/02 ,  G01N21/24

CPC分类号： G01J3/42 ,  G01N21/19

公开(公告)号：US3450478A

公开(公告)日：1969-06-17

申请号：US55919966

申请日：1966-06-21

申请人： BODENSEEWERK PERKIN ELMER CO

发明人： SEBESTYEN NIKOLAUS

IPC分类号： G01N21/19 ,  G01N21/44

CPC分类号： G01N21/19

公开(公告)号：US20240280473A1

公开(公告)日：2024-08-22

申请号：US18583597

申请日：2024-02-21

申请人： Zoltán Tamás KISS ,  Máté NAGY ,  Zsombor ANTAL ,  László DUDÁS ,  György NÁDUDVARI

发明人： Zoltán Tamás KISS ,  Máté NAGY ,  Zsombor ANTAL ,  László DUDÁS ,  György NÁDUDVARI

IPC分类号： G01N21/17 ,  G01N21/19 ,  G01N21/31 ,  G01N21/86

CPC分类号： G01N21/17 ,  G01N21/19 ,  G01N2021/3181 ,  G01N2021/8636

摘要： A method and apparatus for photoluminescent imaging of a sample are disclosed.

公开(公告)号：US11933718B2

公开(公告)日：2024-03-19

申请号：US16687319

申请日：2019-11-18

申请人： Carol Y. Scarlett

发明人： Carol Y. Scarlett

IPC分类号： G01N21/23 ,  G01N21/03 ,  G01N21/19 ,  G01N21/25 ,  G01N21/27 ,  G01N21/31 ,  G02F1/137

CPC分类号： G01N21/23 ,  G01N21/031 ,  G01N21/19 ,  G01N21/255 ,  G01N21/27 ,  G01N21/31 ,  G02F1/137

摘要： An optical system uses a sample medium disposed within an optical cavity, receives an input beam that may be non-coherent or coherent, and produces an optical energy from the input beam, by creating birefringent-induced beam components each cavity traversal, forming a mixed quantum state beam for the input beam. The mixed quantum state beam exits the cavity, and the energy distribution of the exiting beam is analyzed over a range of tuned input beam frequencies to uniquely identify circularly birefringent the materials within the sample medium, e.g., amino acids, proteins, or other circular birefringent molecules, biological or otherwise.

公开(公告)号：US11860084B2

公开(公告)日：2024-01-02

申请号：US17275471

申请日：2019-09-11

申请人： GEORGETOWN UNIVERSITY

发明人： Christian Wolf ,  Zeus A. O. De Los Santos ,  Ciaran Lynch

IPC分类号： G01N31/10 ,  G01N21/19 ,  G01N21/77

CPC分类号： G01N21/19 ,  G01N21/77 ,  G01N2021/7786

摘要： The present invention relates to an analytical method that includes providing a sample potentially containing a chiral analyte that can exist in stereoisomeric forms, and providing a probe selected from the group consisting of metal salts. The sample is contacted with the probe under conditions that permit coordination of the probe to the analyte, if present in the sample; and, based on any coordination that occurs, the absolute configuration of the analyte in the sample, and/or the concentration of the analyte in the sample, and/or the enantiomeric composition of the analyte in the sample is/are determined.

公开(公告)号：US11503218B2

公开(公告)日：2022-11-15

申请号：US17121105

申请日：2020-12-14

申请人： CANON KABUSHIKI KAISHA

发明人： Takenori Kobuse ,  Yoshikazu Ishikawa ,  Takayuki Kimura ,  Yusuke Yamashita ,  Tokuro Nishida

IPC分类号： H04N5/235 ,  H04N5/232 ,  G01N21/19 ,  H04N9/04 ,  H04N5/225

摘要： An electronic device acquires polarization information of a subject based on a plurality of pieces of image data based on a first signal output from a first sensor. The first sensor can capture an optical image of the subject acquired via a polarizing filter provided with areas having different polarization angles. The device further acquires an evaluation value for controlling brightness of an image at the time of capturing the optical image of the subject, based on the plurality of pieces of image data. The plurality of pieces of image data have different polarization angles, by respectively being acquired via areas of the polarizing filter having the plurality of different polarization angles. A degree of weighting to be assigned to the plurality of pieces of image data at the time of acquiring the evaluation value based on the polarization information.

公开(公告)号：US11193829B2

公开(公告)日：2021-12-07

申请号：US16932834

申请日：2020-07-20

申请人： Purdue Research Foundation

发明人： Amr Mohammad E Shaltout ,  Alexander V. Kildishev ,  Vladimir M Shalaev ,  Jingjing Liu

IPC分类号： G01J3/447 ,  G01J3/02 ,  G01N21/19 ,  G02B1/00 ,  G01J3/28

摘要： A circular dichroism spectrometer which comprises a metasurface. The metasurface has a plurality of anisotropic antennas configured to simultaneously spatially separate LCP and RCP spectral components from an incoming light beam. An optical detector array is included which detects the LCP and RCP spectral components. A transparent medium is situated between the metasurface and the optical detector array.