Sensor unit for assay and prism
First Claim
1. A sensor unit usable in an assay apparatus having an assay stage, comprising:
- an optical block, supported on a stage surface of said assay stage, having a sensing surface positioned on an upper surface thereof, said sensing surface receiving illuminating light applied thereto to reflect said illuminating light;
said assay apparatus receiving said illuminating light reflected by said sensing surface, for measuring reaction of a sample;
at least one engageable portion of a protruding or retreating shape, formed with said optical block, for keeping said optical block positioned on said stage surface by engagement with a retention mechanism of said assay apparatus.
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Accused Products
Abstract
A sensor unit is for use in a surface plasmon resonance (SPR) assay apparatus having an assay stage. A total reflection prism is supported on a stage surface of the assay stage, and has a sensing surface positioned on an upper surface thereof. The sensing surface receives illuminating light applied thereto to reflect the illuminating light. The assay apparatus receives the illuminating light reflected by the sensing surface, for measuring reaction of a sample. Two engageable ridges are disposed on first and second lateral faces of the prism which are so positioned that the sensing surface is disposed between, and keep the prism positioned on the stage surface by engagement with a retention mechanism of the assay apparatus. Furthermore, a grip portion is formed at a first end of the prism, and adapted to holding of the prism.
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Citations
12 Claims
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1. A sensor unit usable in an assay apparatus having an assay stage, comprising:
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an optical block, supported on a stage surface of said assay stage, having a sensing surface positioned on an upper surface thereof, said sensing surface receiving illuminating light applied thereto to reflect said illuminating light; said assay apparatus receiving said illuminating light reflected by said sensing surface, for measuring reaction of a sample; at least one engageable portion of a protruding or retreating shape, formed with said optical block, for keeping said optical block positioned on said stage surface by engagement with a retention mechanism of said assay apparatus. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A total reflection prism usable in an optical apparatus having a stage, comprising:
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a prism body, shaped prismatically or semi-cylindrically, supported on a stage surface of said stage, having a total reflection surface positioned on an upper surface thereof, said total reflection surface receiving illuminating light applied thereto by a light source of said optical apparatus to reflect said illuminating light totally; at least one engageable portion of a protruding or retreating shape, formed with said prism body, for keeping said prism body positioned on said stage surface by engagement with a retention mechanism of said optical apparatus. - View Dependent Claims (10, 11, 12)
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Specification