Apparatus for inspecting a bottom border portion of transparent

Details Apparatus for inspecting a bottom border portion of transparent Apparatus for inspecting a bottom border portion of transparent

1994-04-12

1995-08-22

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250225, 356240, G01N 904

Patent

active

054442370

ABSTRACT:
An inspection apparatus which automatically inspects a bottom border portion of a transparent glass vessel for a foreign article accurately is disclosed. Light is projected and received by way of first and second polarization filters through a rotating glass vessel to image the vessel obliquely from below by a solid state image pickup elements of a camera. Brightness values of outputs of the elements of the camera are compared with threshold values for binary digitization and determined as abnormality values when they are higher. The threshold values are varied and the abnormality values are corrected in accordance with the positions of the elements of the camera, and then presence or absence of a foreign article is determined from the corrected abnormality values or the sum of them.

REFERENCES:
patent: 4249075 (1981-02-01), Lovalenti
patent: 4943713 (1990-07-01), Yoshida
patent: 5216481 (1993-06-01), Minato

Affiliated with

Also associated with

Rating

Apparatus for inspecting a bottom border portion of transparent does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for inspecting a bottom border portion of transparent , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for inspecting a bottom border portion of transparent will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2143144