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Bi-directional scanning system with a pixel clock system

  • US 5,895,915 A
  • Filed: 07/24/1997
  • Issued: 04/20/1999
  • Est. Priority Date: 07/24/1997
  • Status: Expired due to Fees
First Claim
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1. A bi-directional optical scanner including:

  • A. a stationary optical system that records data collected from a sample in both forward scans and backward scans;

    B. a sample moving system for positioning the sample relative to the optical system, the sample moving system includingi. a servo-controlled actuator for rotating a wheel to a desired rotational position;

    ii. a spring-controlled system for translating the rotational movement of the wheel to translations movement of the sample, the spring-controlled system including;

    a. a shuttle that carries the sample,b. a first band that connects at a first end to the wheel, wraps partially around the wheel and connects at a second end to a second end of the shuttle,c. a second band that wraps partially around the wheel and connects at a first end to a first end of the shuttle and at a second end to a spring the second band including a split that fits around the first band as the wheel rotates, andd. the spring that connects at a first end to the second band and at a second end to the wheel, the spring-controlled system pulling the shuttle in one direction with a forward rotation of the wheel and in an opposite direction with a backward rotation of the wheel, to move the sample in the forward and backward scans.

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