搬送される対象物における散乱する材料、汚れおよびその他の欠陥を識別するための方法 - Whift Justem Tehnik Gesellschaft Mitt Beschlenktel Haftung

Title:

搬送される対象物における散乱する材料、汚れおよびその他の欠陥を識別するための方法

Document Type and Number:

Japanese Patent JP3820348

Kind Code:

B2

Abstract:

Diffusely scattering defects are to be detected in items made from transparent material, e.g. drinks bottles. To this end, the items (10) are inspected using a light source (12) and a camera (16), a contrast pattern (14) being arranged between the light source (12) and the item to be inspected. Diffusely scattering defects are detected by a decrease in the contrast of the contrast pattern (14) reproduced through the item.

Inventors:

Whift, Bernhard

Application Number:

JP2000513130A

Publication Date:

September 13, 2006

Filing Date:

September 21, 1998

Export Citation:

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Assignee:

Whift Justem Tehnik Gesellschaft Mitt Beschlenktel Haftung

International Classes:

G01N21/90; G01N21/896; G06T1/00; G01N21/892

Domestic Patent References:

JP6058733A
JP8068767A
JP249148A

Foreign References:

US5621520

Attorney, Agent or Firm:

Yasuhiko Takeishi
Noriko Murata

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