Method and apparatus for imaging a sample on a device
First Claim
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1. In a imaging system for imaging a sample on a support having a first surface and a second surface, the sample being located at or near said second surface, said second surface being weakly reflective relative to said first surface, a method for focusing an excitation radiation on said weakly reflective surface comprising the steps of:
- a) focusing excitation radiation on said first surface;
b) focusing excitation radiation on said second surface; and
c) finely focusing excitation radiation on said second surface.
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Abstract
Labeled targets on a support synthesized with polymer sequences at known locations according to the methods disclosed in U.S. Pat. No. 5,143,854 and PCT WO 92/10092 or others, can be detected by exposing selected regions of sample 1500 to radiation from a source 1100 and detecting the emission therefrom, and repeating the steps of exposition and detection until the sample is completely examined.
407 Citations
7 Claims
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1. In a imaging system for imaging a sample on a support having a first surface and a second surface, the sample being located at or near said second surface, said second surface being weakly reflective relative to said first surface, a method for focusing an excitation radiation on said weakly reflective surface comprising the steps of:
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a) focusing excitation radiation on said first surface; b) focusing excitation radiation on said second surface; and c) finely focusing excitation radiation on said second surface. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification