Light source power modulation for use with chemical and biochemical analysis
First Claim
Patent Images
1. A method of analyzing a sample comprising:
- positioning the sample within an optical path of a light source;
modulating power to the light source such that light is emitted from the light source in more than one mode to reduce changes in the emitted light due to temperature changes in the light source;
detecting intensity of light emitted from the sample upon exposure to the light source with a detector; and
removing effects of modulating power to the light source from an output signal of the detector.
2 Assignments
0 Petitions
Accused Products
Abstract
Systems and methods for analyzing a sample are disclosed. The system may include a light source operable to transmit light onto the sample, a detector operable to detect intensity of the light emitted from the sample, and a power modulator. The power modulator modulates the light source power such that light is emitted from the light source in more than one mode to reduce changes in the emitted light due to temperature changes in the light source.
-
Citations
38 Claims
-
1. A method of analyzing a sample comprising:
-
positioning the sample within an optical path of a light source;
modulating power to the light source such that light is emitted from the light source in more than one mode to reduce changes in the emitted light due to temperature changes in the light source;
detecting intensity of light emitted from the sample upon exposure to the light source with a detector; and
removing effects of modulating power to the light source from an output signal of the detector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. A system for use in analyzing a sample, comprising:
-
a light source operable to transmit light onto the sample;
a detector operable to detect intensity of light emitted from the sample; and
a power modulator operable to modulate light source power such that light is emitted from the light source in more than one mode to reduce changes in the emitted light due to temperature changes in the light source, wherein effects of modulated light source power are removed from an output signal of the detector. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
-
-
28. A system for use in analyzing a sample, comprising:
-
a microfluidic device;
a light source operable to transmit light onto the sample positioned within the microfluidic device;
a detector operable to detect intensity of the light emitted from the sample;
a power modulator operable to modulate light source power such that light is emitted from the light source in more than one mode to reduce changes in the emitted light due to temperature changes in the light source; and
a filter operable to filter the output signal from the detector to substantially remove effects of modulated light source power. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
-
Specification