MEASUREMENT APPARATUS
First Claim
1. A measurement apparatus configured to measure a spectroscopic characteristic of a specimen by acousto-optical tomography, the measurement apparatus comprising:
- a light source configured to provide light to be irradiated onto the specimen;
an ultrasound generating unit configured to generate ultrasound;
an ultrasound focusing unit configured to focus the ultrasound generated by the ultrasound generating unit on a measurement area of the specimen;
a light detecting unit configured to detect light modulated by the acousto-optical effect on the measurement area of the specimen; and
a control unit operable to control at least one of the parameter;
the intensity of the ultrasound generated by the ultrasound generating unit, the frequency of the ultrasound generated by the ultrasound generating unit, the ultrasound focusing size made by the ultrasound focusing unit, and the intensity of the light from the light source, based on an output of the light detecting unit.
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Abstract
A measurement apparatus is configured to measure a spectroscopic characteristic of a specimen. The measurement apparatus includes a light source configured to generate light to be irradiated onto the specimen, an ultrasound generating unit configured to generate an ultrasound, an ultrasound focusing unit configured to focus the ultrasound generated by the ultrasound generating unit on a measurement area of the specimen, a light detecting unit configured to detect modulated light derived from the light by an acousto optical effect on the measurement area of the specimen, and a control unit configured to control, based on an output of the light detecting unit, at least one of an intensity and a frequency of the ultrasound generated by the ultrasound generating unit, an ultrasound focusing size made by the ultrasound focusing unit, and an intensity of the light generated from the light source.
36 Citations
10 Claims
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1. A measurement apparatus configured to measure a spectroscopic characteristic of a specimen by acousto-optical tomography, the measurement apparatus comprising:
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a light source configured to provide light to be irradiated onto the specimen; an ultrasound generating unit configured to generate ultrasound; an ultrasound focusing unit configured to focus the ultrasound generated by the ultrasound generating unit on a measurement area of the specimen; a light detecting unit configured to detect light modulated by the acousto-optical effect on the measurement area of the specimen; and a control unit operable to control at least one of the parameter;
the intensity of the ultrasound generated by the ultrasound generating unit, the frequency of the ultrasound generated by the ultrasound generating unit, the ultrasound focusing size made by the ultrasound focusing unit, and the intensity of the light from the light source, based on an output of the light detecting unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of measuring a spectroscopic characteristic of a specimen by acousto-optical tomography, the method comprising:
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irradiating the specimen with light; focusing ultrasound on a measurement area of the specimen; detecting light modulated by the acousto-optical effect on the measurement area of the specimen, characterized in that the method further comprises;
controlling at least one of the parameters;
the intensity of the ultrasound generated by the ultrasound source;
the frequency of the ultrasound generated by the ultrasound source;
the ultrasound focusing size (D1, D2) made by the ultrasound focusing unit; and
the intensity of the light from the light source, based on the detected modulated light.
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Specification