DETECTION OF MARKING LINE WITH LIGHT DISPLACEMENT METER

Title:

DETECTION OF MARKING LINE WITH LIGHT DISPLACEMENT METER

Document Type and Number:

Japanese Patent JPS63215904

Kind Code:

A

Abstract:

PURPOSE:To facilitate adjustment of detection sensitivity of a marking line, by providing a plate having an aperture with a specified size and shape in front of a light displacement meter on the side of laser beam projection. CONSTITUTION:A plate 5 having an aperture 5A with a specified size and shape is provided in front of a light displacement member 1 on the side of laser beam projection and a marking line, for example, a tape 3A provided on the surface of work 3 is detected by a laser beam 2 passing through the aperture 5A. Thus, as the pate 5 having the aperture 5A with a specified size and shape is provided in front of the light displacement meter 1 on the side of laser beam projection, a spot diameter of a light spot 4 can be selected to adjust detection sensitivity of the marking line.

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Inventors:

IKEDA TAKASHI

Application Number:

JP4766187A

Publication Date:

September 08, 1988

Filing Date:

March 04, 1987

Export Citation:

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Assignee:

MITSUBISHI ELECTRIC CORP

International Classes:

G01B11/00; B23Q17/24; G01B11/24; (IPC1-7): B23Q17/24; G01B11/00; G01B11/24

Domestic Patent References:

JPS6243129A

1987-02-25

Attorney, Agent or Firm:

Soga Doteru

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