Apparatus and method for measuring optically active materials
First Claim
1. Apparatus for sensing and measuring optically active material in a sample, comprising:
- a) a light source emitting light of a wavelength that can pass through the sample;
b) a light transparent sample container for holding the sample;
c) a linear polarizer interposed between the light source and the sample for producing a polarized light beam;
d) a symmetrical linear split-field polarizer fixedly positioned to intercept the polarized light that passed through the sample;
e) detectors to detect the split light beams passing through each polarizer of the split-field polarizer;
f) means to amplify the current or voltage passing through each of the detectors;
g) a differential amplifier;
h) a data processor;
i) a display; and
j) electronic circuitry to operate the apparatus and provide an output on the display.
1 Assignment
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Accused Products
Abstract
Apparatus and method for sensing and measuring optically active material in a sample, comprising:
a) a light source emitting light of a wavelength that can pass through the sample;
b) a light transparent sample container for holding the sample;
c) a linear polarizer interposed between the light source and the sample for producing a polarized light beam;
d) a symmetrical linear split-field polarizer fixedly positioned to intercept the polarized light that passed through the sample;
e) detectors to detect the split light beams passing through each polarizer of the split-field polarizer;
f) means to amplify the current or voltage passing through each of the detectors;
g) a differential amplifier;
h) a data processor;
i) a display; and
j) electronic circuitry to operate the apparatus and provide an output on the display.
23 Citations
25 Claims
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1. Apparatus for sensing and measuring optically active material in a sample, comprising:
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a) a light source emitting light of a wavelength that can pass through the sample;
b) a light transparent sample container for holding the sample;
c) a linear polarizer interposed between the light source and the sample for producing a polarized light beam;
d) a symmetrical linear split-field polarizer fixedly positioned to intercept the polarized light that passed through the sample;
e) detectors to detect the split light beams passing through each polarizer of the split-field polarizer;
f) means to amplify the current or voltage passing through each of the detectors;
g) a differential amplifier;
h) a data processor;
i) a display; and
j) electronic circuitry to operate the apparatus and provide an output on the display. - 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, 24)
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25-26. -26 (canceled).
Specification