| 54 |
Titel |
TI |
[EN] Circular Birefringence Refractometer: Method And Apparatus For Measuring Optical Activity |
| 71/73 |
Anmelder/Inhaber |
PA |
FISCHER PEER
;
GHOSH AMBARISH
|
| 72 |
Erfinder |
IN |
FISCHER PEER, US
;
GHOSH AMBARISH, US
|
| 22/96 |
Anmeldedatum |
AD |
27.06.2007 |
| 21 |
Anmeldenummer |
AN |
30584007 |
|
Anmeldeland |
AC |
US |
|
Veröffentlichungsdatum |
PUB |
16.09.2010 |
33
31
32 |
Priorität |
PRC
PRN
PRD |
US
2007072248
27.06.2007
|
33
31
32 |
PRC
PRN
PRD |
US
80607406
28.06.2006
|
| 51 |
IPC-Hauptklasse |
ICM |
G01J 4/02
(2006.01)
|
| 51 |
IPC-Nebenklasse |
ICS |
|
|
IPC-Zusatzklasse |
ICA |
|
|
IPC-Indexklasse |
ICI |
|
|
Gemeinsame Patentklassifikation |
CPC |
G01J 4/02
G01N 21/23
|
|
MCD-Hauptklasse |
MCM |
G01J 4/02
(2006.01)
|
|
MCD-Nebenklasse |
MCS |
|
|
MCD-Zusatzklasse |
MCA |
|
| 57 |
Zusammenfassung |
AB |
[EN] A system and method for detection and measurement of circular birefringences in materials, such as optically active (chiral) liquids and materials that exhibit the Faraday effect. The method and apparatus permit the detection of optical activities via the difference in the directions of propagation the left- and the right-circularly polarized light (components). A beam of light is directed at an interface formed by the optically active medium and another medium such that a difference in the angles of refraction and/or reflection and/or diffraction between the left- and the right-circularly polarized components of the light beam can be detected. The difference in the propagation directions between the two circularly polarized light components is measured on a position sensitive detector and/or is detected as an intensity difference. The circular birefringence in isotropic liquids is a measure of their optical purity (enantiomeric excess) and hence the invention presents a method and apparatus to measure chirality. The invention is thus related to optical rotation (polarimetric) measurements, but has the advantage that it does not depend on path-length traversed through the sample. |
| 56 |
Entgegengehaltene Patentdokumente/Zitate,
in Recherche ermittelt |
CT |
US000005486940A
US000006166807A
US000006466320B1
US000006620622B1
US000006687012B2
US000007301633B2
US000007599062B2
US020030081221A1
US020050094144A1
|
| 56 |
Entgegengehaltene Patentdokumente/Zitate,
vom Anmelder genannt |
CT |
|
| 56 |
Entgegengehaltene Nichtpatentliteratur/Zitate,
in Recherche ermittelt |
CTNP |
|
| 56 |
Entgegengehaltene Nichtpatentliteratur/Zitate,
vom Anmelder genannt |
CTNP |
|
|
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Sequenzprotokoll |
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Prüfstoff-IPC |
ICP |
G01J 4/02
|
