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Efficient Optical Arrangement for Illumination and Dectection of Label-Free Biosensors and Method to Reduce Interference Fringes in Label-Free Imaging
Efficient Optical Arrangement for Illumination and Dectection of Label-Free Biosensors and Method to Reduce Interference Fringes in Label-Free Imaging
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机译:用于无标记生物传感器的照明和检测的高效光学装置以及减少无标记成像中的干扰条纹的方法
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摘要
An optical arrangement for illuminating a surface of a biosensor having a periodic surface grating structure. The arrangement includes a light source generating light, collimating optics for collimating the light from the light source, and a first reflecting surface (e.g., prism surface) receiving light from the collimating optics and directing incident light onto a surface of the biosensor and a second spatially separated reflecting surface receiving light reflected from the surface of the biosensor. The arrangement further includes telecentric optics (e.g., telecentric lens) receiving light from the second surface of the prism. The telecentric lens directs light onto an entrance slit of a spectrometer. The arrangement increases the light collection efficiency at the spectrometer as compared to prior art arrangements.
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