Device for the measurement of a profile on a plane surface
First Claim
Patent Images
1. Apparatus for measuring a relief profile line contained upon a planar surface of a substrate that includes:
- a hand-held measurement head that further includes,a light source and a lens means for converting a beam of light emanating from said source into an image in the form of a luminous streak that is perpendicular to a relief profile line being measured wherein the orientation of said beam of light is effected at an angle of incidence (α
) having a value about equal to the Brewster angle of the substrate,means for focussing back-scattered light from the illuminated relief profile line upon a matrix camera which converts received analog light signals into digital output signals, andprocessing means connected to said camera for processing said digital signals to determine at least one of the geometrical characteristics defining the relief profile line.
1 Assignment
0 Petitions
Accused Products
Abstract
Apparatus for measuring the relief profile of a score line mode in a subste such as a paper board. A hand-held measuring head containing a light source illuminates the score line and the back-scattered light reflected therefrom is recorded by a CCD imager. The digital output of the imager is sent to a processor to determine one or more physical characteristics of the score line.
7 Citations
11 Claims
-
1. Apparatus for measuring a relief profile line contained upon a planar surface of a substrate that includes:
-
a hand-held measurement head that further includes, a light source and a lens means for converting a beam of light emanating from said source into an image in the form of a luminous streak that is perpendicular to a relief profile line being measured wherein the orientation of said beam of light is effected at an angle of incidence (α
) having a value about equal to the Brewster angle of the substrate,means for focussing back-scattered light from the illuminated relief profile line upon a matrix camera which converts received analog light signals into digital output signals, and processing means connected to said camera for processing said digital signals to determine at least one of the geometrical characteristics defining the relief profile line. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. Apparatus for measuring a raised relief profile line made along a paper substrate that includes
a hand-held measuring head that further includes, a collimated light source having a laser diode and a plano-cylindrical lens for converting a laser beam into a line that is perpendicular to said relief profile line, said laser beam be oriented so it has an angle of incidence of about 56° - with respect to said relief profile line,
an objective lens arranged to focus back-scattered light reflected from the substrate, a matrix camera having a charge transfer circuit for receiving said reflected light and converting the received information into digital output signals, and a processing unit connected to said camera, said unit including a micro-computer having a calculator for determining the geometrical characteristic of said relief profile line relating to the height the width, and the linearity of said line.
- with respect to said relief profile line,
Specification