Process and device for inspecting the surface of a material
First Claim
1. Process for inspection of the surface of a material by visual examination of a television picture produced by at least one camera focused on the material surface and displaying the resultant image obtained on a monitor or screen, which comprises:
- providing the surface of a material to be inspected, providing a camera focused on said surface operative to detect defects on said surface and a screen operatively connected to said camera, providing means for displaying said surface on said screen only when said camera detects a defect on the surface of the material.
1 Assignment
0 Petitions
Accused Products
Abstract
The surface of a material is inspected for defects by visual examination of a television picture of the surface produced by at least one camera focused on the material and transmitting an image to a screen in the form of a video signal. The connection between screen and camera is made only when a defect is detected on the surface of the material. The video signal is delimited by an upper and a lower signal level which, if exceeded, results in a trigger signal being activated. In addition a trigger mechanism and an image storage facility are provided between the screen and the camera. Appearing on the screen are only pictures of surface areas showing defects; areas without defects are not displayed on the screen.
-
Citations
15 Claims
-
1. Process for inspection of the surface of a material by visual examination of a television picture produced by at least one camera focused on the material surface and displaying the resultant image obtained on a monitor or screen, which comprises:
- providing the surface of a material to be inspected, providing a camera focused on said surface operative to detect defects on said surface and a screen operatively connected to said camera, providing means for displaying said surface on said screen only when said camera detects a defect on the surface of the material.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- 9. Device for inspection of the surface of a material by visual examination of television picture produced by at least one camera focused on the material surface and displaying via a video signal the resultant image of the material surface on a monitor or screen, which comprises a surface of a material to be inspected, a camera focused on said surface operative to detect thereon, a screen operatively connected to said camera, and means between said camera and screen for transmitting the video signal and thereby displaying said surface on said screen only when a defect is detected on the surface by said camera.
Specification