Transmitted light detection type measurement apparatus for skin autofluorescence
First Claim
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1. A transmitted light type measurement apparatus for measuring skin fluorescence, which is configured to perform light irradiation and light detection on a measurement target, the apparatus comprising:
- a first light source configured to irradiate excitation light having a first wavelength on the measurement target so that the skin fluorescence is generated from the measurement target by the excitation light;
a second light source configured to irradiate light having a second wavelength which is different from the first wavelength on the measurement target;
a first optical detector disposed to detect transmitted light through the measurement target by the excitation light from the first light source;
a second optical detector disposed to detect the skin fluorescence generated from the measurement target by the excitation light from the first light source and transmitted light passing through the measurement target by light from the second light source;
a light source switching controller configured to control turning on and off of the first light source and the second light source;
an optical detector switching controller configured to control turning on and off of the first optical detector and the second optical detector; and
an operation part configured to calculate a skin fluorescence signal by correcting a signal based on the skin fluorescence and the transmitted light detected by the first optical detector and the second optical detector,wherein the light source switching controller controls the first light source and the second light source such that the first light source is turned on when the second light source is turned off under a first condition and the first light source is turned off when the second light source is turned on under a second condition,wherein the first optical detector is turned on only under the first condition and the second optical detector is turned on under the first condition and the second condition.
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Abstract
The present invention provides a transmitted light detection type measurement apparatus for skin fluorescence, which is configured to perform light irradiation and light detection on a reference sample and a measurement target. The apparatus includes a first light source, a second light source, a first optical detector and a second optical detector, a light source switching controller, and an operator.
13 Citations
34 Claims
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1. A transmitted light type measurement apparatus for measuring skin fluorescence, which is configured to perform light irradiation and light detection on a measurement target, the apparatus comprising:
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a first light source configured to irradiate excitation light having a first wavelength on the measurement target so that the skin fluorescence is generated from the measurement target by the excitation light; a second light source configured to irradiate light having a second wavelength which is different from the first wavelength on the measurement target; a first optical detector disposed to detect transmitted light through the measurement target by the excitation light from the first light source; a second optical detector disposed to detect the skin fluorescence generated from the measurement target by the excitation light from the first light source and transmitted light passing through the measurement target by light from the second light source; a light source switching controller configured to control turning on and off of the first light source and the second light source; an optical detector switching controller configured to control turning on and off of the first optical detector and the second optical detector; and an operation part configured to calculate a skin fluorescence signal by correcting a signal based on the skin fluorescence and the transmitted light detected by the first optical detector and the second optical detector, wherein the light source switching controller controls the first light source and the second light source such that the first light source is turned on when the second light source is turned off under a first condition and the first light source is turned off when the second light source is turned on under a second condition, wherein the first optical detector is turned on only under the first condition and the second optical detector is turned on under the first condition and the second condition. - 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, 31, 32, 33, 34)
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Specification