Method and apparatus for monitoring the surface profile of a mov

Optics: measuring and testing – By polarized light examination – With light attenuation

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

356 1, G01B 1124

Patent

active

050569228

ABSTRACT:
An optical inspecting apparatus and the method thereof, including a series of optical units for rapidly acquiring the three-dimensional surface profile of a moving object. Each optical unit contains a multiple-beam light source to project a number of luminous spots on the object surface which are imaged through a properly oriented line-array camera. The surface position on both sides of the object, and thus the object thickness, is inferred at the position of each luminous spot from an analysis of their camera image. The projected luminous spots are preferably elliptically shaped and the line array elements are elongated in a direction perpendicular to their longitudinal axis in order to reduce speckle and other optical noise. The described optical configuration results in a superior performance in terms of spatial resolution and response speed.

REFERENCES:
patent: 3671726 (1972-06-01), Kerr
patent: 4188544 (1980-02-01), Chasson
patent: 4238147 (1980-12-01), Stern
patent: 4248532 (1981-02-01), Nosler
patent: 4534650 (1985-08-01), Clerget et al.
patent: 4541723 (1985-09-01), Pirlet
patent: 4673817 (1987-06-01), Oomen
patent: 4809147 (1989-02-01), Negishi
Cielo, P., and Lamontagne, M., "Improvement of Subpixel Resolution in Triangulation Ranging by Astigmatic Spot Projection and Wide-Aperture Line Array Imaging," Optics and Laser Technology, vol. 20, pp. 19-24.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method and apparatus for monitoring the surface profile of a mov does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for monitoring the surface profile of a mov, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for monitoring the surface profile of a mov will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-986627

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.