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CRISP Autofocus System

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Applied Scientific Instrumentation Inc.
The Continuous Reflection Interface Sampling and Positioning system (CRISP) is designed to maintain focus over time, i.e., to compensate for thermal and other factors that may cause the sample to drift out of focus over time. It also can be used to maintain a given focal point while scanning the sample in XY. The CRISP system projects the image of a mask illuminated with an infrared LED into the sample plane. Only one half of the objective pupil is illuminated. This means that the point spread function of the objective is highly skewed, so that the reflected image of the mask will move...See full product

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