Photoacoustic apparatus and method for controlling the same
First Claim
1. A photoacoustic apparatus comprising:
- a light source configured to emit light;
an optical system configured to guide the light from the light source to an analyte;
a detecting unit including a receiving element configured to receive an acoustic wave that is generated in the analyte by the light;
a signal processing unit configured to acquire information about the inside of the analyte from a detected signal that is acquired from the detecting unit; and
a calculation unit configured to calculate an irradiation intensity distribution of the light from the optical system on the basis of the detected signal that is acquired when the receiving element receives acoustic wave generated from an optical absorber configured to absorb the light from the optical system.
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Abstract
Provided is a photoacoustic apparatus capable of recognizing light quantity unevenness, which occurs on a surface of an analyte, and decreasing image unevenness resulted from the light quantity unevenness.
A photoacoustic apparatus includes a light source configured to irradiate an analyte with light; an optical system configured to guide the light from the light source to the analyte; a detecting unit including a receiving element configured to receive an acoustic wave generated in the analyte by the light; a signal processing unit configured to acquire information about the inside of the analyte from a detected signal acquired from the detecting unit; an optical absorber configured to absorb the light from the light source; and a calculation unit configured to calculate an irradiation intensity distribution of the light on the basis of a detected signal acquired when the receiving element receives the acoustic wave generated from the optical absorber.
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Citations
20 Claims
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1. A photoacoustic apparatus comprising:
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a light source configured to emit light; an optical system configured to guide the light from the light source to an analyte; a detecting unit including a receiving element configured to receive an acoustic wave that is generated in the analyte by the light; a signal processing unit configured to acquire information about the inside of the analyte from a detected signal that is acquired from the detecting unit; and a calculation unit configured to calculate an irradiation intensity distribution of the light from the optical system on the basis of the detected signal that is acquired when the receiving element receives acoustic wave generated from an optical absorber configured to absorb the light from the optical system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A photoacoustic apparatus comprising:
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a light source configured to emit light; an optical system configured to guide the light from the light source to an analyte; a detecting unit including a receiving element configured to receive an acoustic wave that is generated in the analyte by the light; a signal processing unit configured to acquire information about the inside of the analyte from a detected signal that is acquired from the detecting unit; and a judging unit configured to judge whether an intensity of the detected signal acquired when the receiving element receives an acoustic wave generated from an optical absorber configured to absorb the light from the optical system is within a predetermined intensity range indicative of that the light source or the optical system is normal. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A method for controlling a photoacoustic apparatus comprising the steps of:
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irradiating an optical absorber that is provided in the apparatus with light; receiving an acoustic wave that is generated from the optical absorber when the optical absorber receives the light, by a detecting unit; and calculating an irradiation intensity distribution of the light on the basis of the detected signal that is acquired when the receiving element receives the acoustic wave generated from the optical absorber.
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19. A method for controlling a photoacoustic apparatus comprising the steps of:
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irradiating an optical absorber that is provided in the apparatus with light from a light source through an optical system; receiving an acoustic wave that is generated from the optical absorber when the optical absorber receives the light, by a detecting unit; and judging whether an intensity of a detected signal acquired when the detecting unit receives the acoustic wave generated from the optical absorber is within a predetermined intensity range indicative of that the light source or the optical system is normal.
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20. A photoacoustic apparatus comprising:
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a detecting unit including a receiving element configured to receive an acoustic wave that is generated when an analyte is irradiated with light; a signal processing unit configured to acquire information about the inside of the analyte from a detected signal that is acquired from the detecting unit; and a calculation unit configured to calculate an irradiation intensity distribution of the light on the basis of a detected signal that is acquired when the receiving element receives an acoustic wave generated from an absorber configured to absorb the light.
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Specification