THREE-DIMENSIONAL MEASURING APPARATUS

Title:

THREE-DIMENSIONAL MEASURING APPARATUS

Document Type and Number:

Japanese Patent JP3878033

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To provide a three-dimensional measuring apparatus which can shorten a time required for measuring in the case of measuring by using a three- dimensional shape of an object to be measured.
SOLUTION: A printing state examining apparatus 1 has a table for placing a printed board K printed by a cream solder H, an illuminator 3 for constituting an illuminating means for illuminating three optical component patterns of sine wave states having different phases with respect to a surface of the printed board K, and a CCD camera 4 for constituting an imaging means for imaging an illuminated part on the board K. A controller 7 obtains a chart showing a relationship between an intensity of each optical component from the image data of the board K of a plane from the data obtained by the illumination of the illuminator 3 and coordinates, and calculates mutual relative phase angles. A height of the solder H is calculated from the obtained image data and the calculated relative phase angle by using a phase shifting method.

Inventors:

Takahiro Mamiya
Ikuo Nimura

Application Number:

JP2002053144A

Publication Date:

February 07, 2007

Filing Date:

February 28, 2002

Export Citation:

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