Method and apparatus for detecting fluorescence of a sample
First Claim
1. An apparatus for detecting the fluorescence of a sample comprising:
- a first excitation light system including at least a first light source, the first light source having a main light path;
a sample plane for positioning said sample;
a detection device including at least a first detector for detecting fluorescence signals from the sample, an axis between the detection device and the sample plane being a detection-sample axis;
a processor coupled to receive data from the detector;
a focusing device for focusing the signals onto the detection device, said focusing device having a collection angle, an angle between the main light path of the first light source and the detection-sample axis being between the collection angle/2 and 90°
, and the focusing device providing a magnification in a range of 2/1 to 1/10.
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Abstract
The present invention relates to an apparatus and a method for detecting the fluorescence of a sample, wherein the apparatus comprises excitation light source located on the same side of the sample as the detecting means. The apparatus may be constructed as a single-sided as well as a double-sided system, wherein the double-sided system comprises double-sided excitation system and/or double-sided detecting system. The double-sided system may also be a combination of fluorescence system and conventional microscopy. The apparatus may be used for analysis of various types of biological material, liquid as well as solid material, and various other types of material suitable being analysed through fluorescence studies.
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Citations
53 Claims
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1. An apparatus for detecting the fluorescence of a sample comprising:
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a first excitation light system including at least a first light source, the first light source having a main light path;
a sample plane for positioning said sample;
a detection device including at least a first detector for detecting fluorescence signals from the sample, an axis between the detection device and the sample plane being a detection-sample axis;
a processor coupled to receive data from the detector;
a focusing device for focusing the signals onto the detection device, said focusing device having a collection angle, an angle between the main light path of the first light source and the detection-sample axis being between the collection angle/2 and 90°
, and the focusing device providing a magnification in a range of 2/1 to 1/10. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A method of assessing a parameter of a sample comprising:
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arranging the sample in a sample plane;
exposing a first surface of the sample directly with excitation light from a first light system having at least a first light source;
by use of a focusing device detecting a fluorescence signal from the first surface of the sample onto a detection device including at least a first detector, an axis between the detection device and the sample plane being a detection-sample axis, said focusing device having a collection angle, an angle between an excitation main light path of the first light source and the detection-sample axis being between the collection angle/2 and 90°
, and the focusing device providing a magnification in a range of 2/1 to 1/10;
processing the detected signal obtaining signal data;
correlating the signal data to the parameter to be assessed; and
assessing the parameter. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 41, 42, 43, 44, 48, 49, 53)
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40. The method according to claim 40, wherein said detection area is at least 0.1 mm2.
- 46. The method according to claim 46, wherein a number of particles in said sample is assessed.
- 51. The method according to claim 51, wherein the sample is a document or a note.
Specification