OPTICAL MEASUREMENT ARRANGEMENT

• US 20100200728A1
• Filed: 02/01/2010
• Published: 08/12/2010
• Est. Priority Date: 02/06/2009
• Status: Active Grant

• Current Assignee: Pocared Diagnostics Ltd.
• Original Assignee: Pocared Diagnostics Ltd.
• Inventors: Ingber, Gal
• Granted Patent: US 8,309,897 B2
• Time in Patent Office: Days
• US Class Current: 250/205
• CPC Class Codes: G01J 1/32 adapted for automatic variation of the measured or reference value regulation of light intensity G05D25/00
• CPC Class Codes: G01J 2003/2866 Markers; Calibrating of scan
• CPC Class Codes: G01J 3/42 Absorption spectrometry; Double beam spectrometry; Flicker spectrometry; Reflection spectrometry beam switching arrangements G01J3/08
• CPC Class Codes: G01N 21/031 Multipass arrangements
• CPC Class Codes: G01N 21/253 for batch operation, i.e. multisample apparatus analytical automats G01N35/00
• CPC Class Codes: G01N 2201/0415 Carrusel, sequential
• CPC Class Codes: G01N 2201/0469 One cell, sequential, e.g. successive samples
• CPC Class Codes: G01N 2201/0692 Regulated sources; stabilised supply

Abstract

A method and device for enhancing the power correction of optical measurements in an optical measurement arrangement, the steps including: providing a light source for producing a light beam; splitting the light beam into two beams; directing a first split light beam through an interrogation area and into an optics separation device; directing the light beams from the optics separation device and a second split light beam representing the intensity of the illumination of the main light beam of the light source into cells of a detector array; measuring and assessing the information obtained in the cells; and using this information to calculate the corrected value for the cells receiving the light beams from the optics separation device in order to adjust the power for the intensity of the light beam of the light source and/or to correct the intensity of the light beams from the interrogation area.

Claims

1. A method for optimizing the power correction to the light intensity used as a signal in an optical measurement arrangement, the steps comprising:

a) providing a light source for producing a light beam;

b) directing the light beam into a beam splitting device to produce a first split light beam and a second split light beam;

c) directing the first split light beam through at least an interrogation area and an optics separation device for separating the first split light beam into one or more light beams;

d) providing a detector array assembly having a plurality of detection elements for receiving the one or more light beams of the first split light beam and the second split light beam;

e) directing the one or more light beams of the first split light beam and the second split light beam into one of the plurality of detection elements of the detector array assembly;

f) measuring and assessing the information obtained in at least the detection elements of the detector array assembly which received the one or more light beams of the first split light beam and the information obtained in one of the plurality of detection elements of the detector array assembly which received the second split light beam; and

g) using this information obtained in step f) to adjust the power for the intensity of the light beam of the light source.

2. An optical measurement arrangement comprising:

a light source for producing a light beam;

a beam splitting device for splitting the light beam of the light source into a first split light beam and a second split light beam;

an optics separation device for separating the first split light beam into one or more separated light beams;

a detector array assembly having a plurality of detection elements for receiving one or more light beams of the first split light beam and the second split light beam; and

a measuring device for measuring and assessing the information obtained in the detection element of the detector array assembly receiving the second split light beam and the information obtained in the detection elements of the detector array assembly receiving the one or more separated light beams of the first split light beam and for using the results of this measurement to adjust the light beam of the light source.

3. A method for optimizing the power correction to the light intensity used as a signal in an optical measurement arrangement, the steps comprising:

a) providing a light source for producing a light beam;

b) directing the light beam into a beam splitting device to produce a first split light beam and a second split light beam;

c) directing the first split light beam through at least an interrogation area and an optics separation device for separating the first split light beam into one or more light beams;

d) providing a detector array assembly having a plurality of detection elements for receiving the one or more light beams of the first split light beam and the second split light beam;

e) directing the one or more light beams of the first split light beam and the second split light beam into one of the plurality of detection elements of the detector array assembly;

f) measuring and assessing the information obtained in at least the detection elements of the detector array assembly which received the one or more light beams of the first split light beam and the information obtained in one of the plurality of detection elements of the detector array assembly which received the second split light beam; and

g) using this information obtained in step f) to correct the intensity of the light beam from at least the interrogation area.

4. An optical measurement arrangement comprising:

a light source for producing a light beam;

a beam splitting device for splitting the light beam of the light source into a first split light beam and a second split light beam;

an interrogation area for receiving the first split light beam,

an optics separation device for separating the first split light beam into one or more separated light beams;

a detector array assembly having a plurality of detection elements for receiving one or more light beams of the first split light beam and the second split light beam; and

a measuring device for measuring and assessing the information obtained in the detection element of the detector array assembly receiving the second split light beam and the information obtained in the detection elements of the detector array assembly receiving the one or more separated light beams of the first split light beam and for using this information to correct the intensity of the light beam from at least the interrogation area.