Image data output device and workpiece measurement device

Abstract

This makes it easy to combine multiple image data acquired from imaging different fields of view. [Solution] The workpiece measurement device 1, which serves as an image data output device, includes a camera device 4, a moving mechanism 5, and a control unit 6. The camera device 4 images the workpiece W in a first field of view and a second field of view different from the first field of view. The moving mechanism 5 moves the workpiece W relatively so that it passes through the first field of view followed by the second field of view. The camera device 4 includes an image memory 63 for storing acquired image data and an image reading unit 44 as an output unit. The image reading unit 44 offsets the reading timing of the first image data or the second image data so that it simultaneously reads out the first image data, in which the workpiece W is the point of interest, and the second image data, in which the point of interest is the same as the second field of view, and outputs them to the control unit 6.

Claims

1. An imaging unit that images the workpiece with a first field of view and a second field of view different from the first field of view, A movement mechanism that moves the workpiece so that it passes through the first field of view and then the second field of view, An imaging control unit controls the imaging unit to continuously image the workpiece that is moving relative to it, The system includes an output unit that outputs image data acquired by the imaging unit to other devices, The output unit is an image data output device that offsets the reading timing of the first image data or the second image data so that it simultaneously reads out and outputs first image data in which the workpiece of interest is captured in the first field of view and second image data in which the workpiece of interest is captured in the second field of view.

2. In the image data output device according to claim 1, A first light source that emits first illumination light with first light distribution characteristics into the first field of view, An image data output device further comprising a second light source that emits a second illumination light having a second light distribution characteristic different from the first light distribution characteristic into the second field of view.

3. In the image data output device according to claim 2, The first illumination light is a line light for acquiring three-dimensional data of the workpiece, The second illumination light is a normal illumination light for acquiring two-dimensional data of the workpiece, in an image data output device.

4. In the image data output device according to claim 2, The first illumination light is a line light for acquiring special two-dimensional data for detecting singularities in the workpiece, The second illumination light is a normal illumination light for acquiring two-dimensional data of the workpiece, in an image data output device.

5. In the image data output device according to claim 3 or 4, The imaging unit has a rectangular imaging area, The first light source is arranged such that the reflected light of the first illumination light is incident on the edge region of the imaging area, and the second light source is arranged such that the reflected light of the second illumination light is incident on at least the central region of the imaging area. The three-dimensional data or the special two-dimensional data is acquired in the edge region of the imaging area. The two-dimensional data is acquired in the central region of the imaging area by an image data output device.

6. The image data output device according to claim 3, A measurement unit that determines two-dimensional and three-dimensional information of the workpiece based on the three-dimensional data and two-dimensional data output from the image data output device, A workpiece measuring device equipped with the following features.

7. In the workpiece measuring device according to claim 6, The measurement unit has an inspection unit that performs coplanarity measurement of the workpiece. The inspection unit is a workpiece measuring device that evaluates the coplanarity of the workpiece using the three-dimensional data and the two-dimensional data linked to the position of interest.

8. In the workpiece measuring device according to claim 6 or 7, When the workpiece has a size exceeding the imaging area of ​​the imaging unit, the imaging control unit causes the imaging unit to perform a first imaging of at least a first portion of the workpiece, and then causes the imaging unit to perform a second imaging of a second portion different from the first portion. The measurement unit combines the two-dimensional data obtained in the first imaging and the two-dimensional data obtained in the second imaging to combine the three-dimensional data obtained in the first imaging and the three-dimensional data obtained in the second imaging, thereby determining the two-dimensional and three-dimensional shapes of the workpiece.

9. In the workpiece measuring device according to claim 8, The measurement unit is a workpiece measurement device that performs weighted averaging on the region where the two-dimensional data obtained in the first imaging and the two-dimensional data obtained in the second imaging overlap.

10. The image data output device according to claim 4, A measurement unit that determines the singularity and two-dimensional information of the workpiece based on the special two-dimensional data and the two-dimensional data output from the image data output device, A workpiece measuring device equipped with the following features.

Images