US 10,852,128 B2Granted

Shape measuring apparatus

AssigneeMitutoyo Corporation

InventorsMasaoki Yamagata, Kentaro Nemoto, Eisuke Moriuchi, Tadashi Iwamoto

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Abstract

A shape measuring apparatus includes a first light source, a second light source, an optical system, an image capturer, and a controller. The first light source emits visible light. The second light source emits measurement light used in a measurement. The optical system emits the visible light and the measurement light at the same position on a work piece. The image capturer captures an image of the measurement light reflected by the work piece. The controller is configured to cause the emission of the visible light onto the work piece with the first light source when determining a measurement position, and to control the emission of the measurement light onto the work piece with the second light source when making the measurement.

Claims19

Dependent claims

A shape measuring apparatus comprising:

a first light source configured to emit visible light;
a second light source configured to emit measurement light used in a measurement;
an optical system configured to emit the visible light and the measurement light at the same position on a work piece;
an image capturer configured to capture an image of the measurement light reflected by the work piece;
and
a controller configured to control the emission of the visible light onto the work piece with the first light source when determining a measurement position, and further configured to after the measurement position has been determined, initiate and control the emission of the measurement light onto the work piece with the second light source, after stopping the emission of the visible light onto the work piece, when making the measurement.

3 more elements

Dependencies are inferred from the claim text.