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Devices relating to rolled product

  • US 7,110,911 B2
  • Filed: 12/30/2004
  • Issued: 09/19/2006
  • Est. Priority Date: 07/12/2001
  • Status: Expired due to Fees
First Claim
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1. A dimension measuring device comprising:

  • a tubular body holding device holding a tubular body;

    a light irradiating device irradiating lights, in strip form, to illumination regions which are regions including end portions of the tubular body, and scanning the lights along a direction orthogonal to an axis of the tubular body;

    a light receiving device receiving the lights emitted from the light irradiating device; and

    a dimension computing device computing a dimension, along an axial direction, of the tubular body from changes in amounts of the lights received by the light receiving device at both end portions of the tubular body.

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