System and method for optical coherence imaging
First Claim
1. A system for imaging at least a portion of a sample, comprising:
- a source arrangement generating at least one source electro-magnetic radiation forwarded to the sample and a reference;
andat least one detection arrangement including a plurality of detectors, at least one of the detectors capable of detecting a signal associated with a combination of at least one first electro-magnetic radiation received from the sample and at least one second electro-magnetic radiation received from the reference, wherein the signal is at least one of frequency components of the combination;
at least one spectral separating unit which separates spectrum of at least one of the first electro-magnetic radiation, the second electro-magnetic radiation or the combination into the at least one of the frequency components,wherein at least one particular detector of the detectors has a particular electrical integration time, wherein the at least one particular detector receives at least a portion of the signal for a time duration which has at least one first portion with at least one first power level greater than a predetermined threshold and at least one second portion immediately preceding or following the at least one first portion, the at least one second portion having at least one second power level less than the predetermined threshold, and wherein the at least one second portion is extended for a time period which is approximately at least 10% of the particular electrical integration time; and
at least one processing arrangement which is configured to generate at least one image associated with the sample based on the detected signal which is provided for the particular electrical integration time, the at least one image including at least one portion associated with the sample below a surface thereof, and the at least one portion of the at least one image illustrates the sample at multiple depths thereof immediately below a surface location at which the forwarded radiation impacts the sample.
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Accused Products
Abstract
A system and method for imaging of a sample, e.g., biological sample, are provided. In particular, at least one source electro-magnetic radiation forwarded to the sample and a reference may be generated. A plurality of detectors may be used, at least one of the detectors capable of detecting a signal associated with a combination of at least one first electro-magnetic radiation received from the sample and at least one second electro-magnetic radiation received from the reference. At least one particular detector may have a particular electrical integration time, and can receive at least a portion of the signal for a time duration which has a first portion with a first power level greater than a predetermined threshold and a second portion immediately preceding or following the first portion. The second portion may have a second power level that is less than the predetermined threshold, and extends for a time period which may be, e.g., approximately more than 10% of the particular electrical integration time.
425 Citations
60 Claims
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1. A system for imaging at least a portion of a sample, comprising:
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a source arrangement generating at least one source electro-magnetic radiation forwarded to the sample and a reference;
andat least one detection arrangement including a plurality of detectors, at least one of the detectors capable of detecting a signal associated with a combination of at least one first electro-magnetic radiation received from the sample and at least one second electro-magnetic radiation received from the reference, wherein the signal is at least one of frequency components of the combination; at least one spectral separating unit which separates spectrum of at least one of the first electro-magnetic radiation, the second electro-magnetic radiation or the combination into the at least one of the frequency components, wherein at least one particular detector of the detectors has a particular electrical integration time, wherein the at least one particular detector receives at least a portion of the signal for a time duration which has at least one first portion with at least one first power level greater than a predetermined threshold and at least one second portion immediately preceding or following the at least one first portion, the at least one second portion having at least one second power level less than the predetermined threshold, and wherein the at least one second portion is extended for a time period which is approximately at least 10% of the particular electrical integration time; and at least one processing arrangement which is configured to generate at least one image associated with the sample based on the detected signal which is provided for the particular electrical integration time, the at least one image including at least one portion associated with the sample below a surface thereof, and the at least one portion of the at least one image illustrates the sample at multiple depths thereof immediately below a surface location at which the forwarded radiation impacts the sample. - 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, 25, 26, 27, 28, 29, 30)
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31. A method for imaging at least a portion of a sample, comprising:
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generating at least one source electro-magnetic radiation forwarded to the sample and a reference;
anddetecting at least a portion of a signal associated with a combination of at least one first electro-magnetic radiation received from the sample and at least one second electro-magnetic radiation received from the reference using at least one detector of a plurality of detectors of a detection arrangement, wherein the signal is at least one of frequency components of the combination; separating spectrum of at least one of the first electro-magnetic radiation, the second electro-magnetic radiation or the combination into the at least one of the frequency components, wherein at least one particular detector of the detectors has a particular electrical integration time, and wherein the at least one particular detector receives at least a portion of the signal for a time duration which has a first portion with a first power level greater than a predetermined threshold and a second portion immediately preceding or following the first portion, the second portion having a second power level less than the predetermined threshold, and extending for a time period which is approximately more than 10% of the particular electrical integration time; and generating at least one image associated with the sample based on the detected signal which is provided for the particular electrical integration time, the at least one image including at least one portion associated with the sample below a surface thereof, and the at least one portion of the at least one image illustrates the sample at multiple depths thereof immediately below a surface location at which the forwarded radiation impacts the sample. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60)
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Specification