SAMPLE DETECTOR AND MEASUREMENT DEVICE EQUIPPED WITH THE SAME
First Claim
1. A sample detector comprising:
- at least a pair of light sources for irradiating a detection area as a destination of sample supply with light; and
a light receiving element which receives two light beams directed from the paired light sources to the detection area and having passed through the detection area and outputs a signal corresponding to the amount of light received;
wherein;
the sample detector further comprises a member provided with at least one aperture positioned between the paired light sources and the detection area; and
the two light beams emitted from the paired light sources travel through paths defined by the aperture to regions in the detection area which are positionally deviated from each other.
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Accused Products
Abstract
A sample detector B includes a member 6 provided with an aperture 60, as well as a light receiving element 5 which receives two light beams directed from a pair of light sources 40, 41 to a detection area AR and having passed through the detection area and outputs a signal corresponding to the amount of light received, and a determination means 8 for determining whether or not a sample is properly supplied to the detection area AR based on the signal. Two light beams emitted from the paired light sources 40, 41 travel through paths defined by the aperture 60 to regions ARr, ARf of the detection area AR which are positionally deviated from each other. With this arrangement, whether or not a sample is properly supplied to the detection area AR is precisely determined without using an expensive component such as an optical lens.
12 Citations
11 Claims
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1. A sample detector comprising:
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at least a pair of light sources for irradiating a detection area as a destination of sample supply with light; and a light receiving element which receives two light beams directed from the paired light sources to the detection area and having passed through the detection area and outputs a signal corresponding to the amount of light received;
wherein;the sample detector further comprises a member provided with at least one aperture positioned between the paired light sources and the detection area; and the two light beams emitted from the paired light sources travel through paths defined by the aperture to regions in the detection area which are positionally deviated from each other. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A measurement device comprising:
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a sample detector which sets a destination of sample supply as a detection area; and a measurement means capable of performing predetermined measurement with respect to a sample supplied to the detection area; the sample detector comprising; at least a pair of light sources for irradiating the detection area with light; a light receiving element which receives two light beams directed from the paired light sources to the detection area and having passed through the detection area and outputs a signal corresponding to the amount of light received; and a member provided with at least one aperture positioned between the paired light sources and the detection area; wherein the two light beams emitted from the paired light sources travel through paths defined by the aperture to regions of the detection area which are positionally deviated from each other. - View Dependent Claims (10, 11)
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Specification