Biological information detection device equipped with light source projecting at least one dot onto living body
First Claim
1. A biological information detection device comprising:
- a first light source that, in operation, projects, onto a living body, at least one first dot formed by first light;
a second light source that, in operation, projects, onto the living body, at least one second dot formed by second light;
an image capturing system includingfirst photodetector cells that, in operation, detect third light from the living body on which the at least one first dot is projected, andsecond photodetector cells that, in operation, detect fourth light from the living body on which the at least one second dot is projected,the image capturing system, in operation, generating and outputting a first image signal and a second image signal, the first image signal denoting a first image of the living body on which the at least one first dot is projected, the second image signal denoting a second image of the living body on which the at least one second dot is projected; and
an arithmetic circuit that, in operation, generates information concerning the living body by using the first image signal and the second image signal output from the image capturing system and outputs the generated information, wherein;
the first light includes fifth light having a wavelength longer than or equal to 650 nm and shorter than or equal to 950 nm;
the second light includes sixth light having a wavelength longer than or equal to 650 nm and shorter than or equal to 950 nm; and
the wavelength of the sixth light is longer than the wavelength of the fifth light by 50 nm or more.
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Accused Products
Abstract
A biological information detection device includes first and second light sources, an image capturing system, and an arithmetic circuit. The first and second light sources project, onto a living body, at least one first dot formed by first light and at least one second dot formed by second light, respectively. The image capturing system includes first photodetector cells and second photodetector cells. The image capturing system generates and outputs a first image signal and a second image signal. The arithmetic circuit generates information concerning the living body, by using the first and second image signals. The first light includes fifth light. The second light includes sixth light. Each of the fifth light and the sixth light has a wavelength in a range from 650 nm to 950 nm. The wavelength of the sixth light is longer than that of the fifth light by 50 nm or more.
27 Citations
13 Claims
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1. A biological information detection device comprising:
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a first light source that, in operation, projects, onto a living body, at least one first dot formed by first light; a second light source that, in operation, projects, onto the living body, at least one second dot formed by second light; an image capturing system including first photodetector cells that, in operation, detect third light from the living body on which the at least one first dot is projected, and second photodetector cells that, in operation, detect fourth light from the living body on which the at least one second dot is projected, the image capturing system, in operation, generating and outputting a first image signal and a second image signal, the first image signal denoting a first image of the living body on which the at least one first dot is projected, the second image signal denoting a second image of the living body on which the at least one second dot is projected; and an arithmetic circuit that, in operation, generates information concerning the living body by using the first image signal and the second image signal output from the image capturing system and outputs the generated information, wherein; the first light includes fifth light having a wavelength longer than or equal to 650 nm and shorter than or equal to 950 nm; the second light includes sixth light having a wavelength longer than or equal to 650 nm and shorter than or equal to 950 nm; and the wavelength of the sixth light is longer than the wavelength of the fifth light by 50 nm or more. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification