A handheld image capturing device for detecting surface defects of objects with reflective properties.

Abstract

A handheld image capturing device is disclosed for detecting surface defects of a test object with reflective properties. The handheld image capturing device includes a camera unit and a darkroom light-blocking sleeve. The camera unit has an image-capturing end. The darkroom light-blocking sleeve includes a first component and a second component. By connecting the first component to the second component, a placement space for the test object and a darkroom detection space are defined, blocking interference from external ambient light sources. When the operator takes a handheld photograph, the camera unit captures an image through the darkroom detection space of the first component to obtain a real-time image of the test object's surface. This overcomes the problem of glare from the test object, resulting in stable and high-quality images.

Claims

1. A handheld image capturing device for detecting surface defects of a test object with reflective properties, the handheld image capturing device comprising: One camera unit, having one image capturing end; The device also includes a darkroom light-shielding sleeve comprising: a first assembly comprising an inner sidewall and a first opening and a second opening located at both ends of the inner sidewall, the first opening being fitted onto the image-capturing end of the camera unit, and the inner sidewall shielding external light sources to form a darkroom testing space; and a second assembly comprising an outer peripheral wall, an inner peripheral wall relative to the outer peripheral wall, and a bottom wall, the end of the inner peripheral wall near the camera unit being fitted onto the second opening of the first assembly, the bottom wall being located at the end of the outer peripheral wall away from the camera unit, the inner peripheral wall and the bottom wall forming a placement space for placing the object under test; wherein the camera unit is used to capture an image through the darkroom testing space of the first assembly to obtain a real-time image of the surface of the object under test.

2. The handheld image capturing device as described in claim 1, wherein, The second kit has a side placement entrance, which includes a first notch and a second notch. The first notch is located on the bottom wall and has an included angle. The second notch extends axially from the first notch and penetrates the inner peripheral wall and the outer peripheral wall. The first notch connects to the second notch, so that the placement space is connected to the external environment.

3. The handheld image capturing device as described in claim 2, wherein, The angle of the first gap is between 40 and 80 degrees.

4. The handheld image capturing device as described in claim 2, wherein, The included angle of the first gap is 60 degrees.

5. The handheld image capturing device as described in claim 1, wherein, The first kit includes a light-diffusing plate, which is disposed between the first opening and the second opening and contacts the image-capturing end of the camera unit.

6. The handheld image capturing device as claimed in claim 1, wherein, The first assembly has a first socket and a second socket that are connected to each other. The first socket corresponds to the first opening, and the second socket corresponds to the second opening. The inner diameter of the first socket is larger than the inner diameter of the second socket.

7. The handheld image capturing device as described in claim 6, wherein, The first assembly includes a light-diffusing plate, which is disposed at one end of the first socket and the end is close to the second socket.

8. The handheld image capturing device as claimed in claim 1, wherein, The inner sidewall of the first kit is provided with an matting layer to absorb stray light and eliminate reflections generated by the test object.

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