CN-224203557-U - Shadowless light source device for multi-azimuth illumination

Abstract

The utility model discloses a shadowless light source device with multi-directional illumination, which comprises a shell, a lamp panel and a diffusion plate, wherein the diffusion plate is arranged in the shell, the inner space of the shell is divided into an installation space and a storage space, the lamp panel is fixed in the installation space, a window and an opening which are communicated into the storage space are arranged on the outer wall of the shell, the opening is used for allowing a detected object to enter into the storage space, a first reflection mirror surface is arranged in the storage space, the first reflection mirror surface is arranged on a path of the diffusion plate for diffusing light and is used for reflecting the light to the side surface or/and the bottom surface of the detected object, and the first reflection mirror surface is arranged on one side of the diffusion plate far away from the window so as to reflect the side surface image or/and the bottom surface image of the detected object to the outside of the window.

Inventors

• ZHONG CHAO
• LIU YING
• ZHAO HUABIN

Assignees

• 广东奥普特科技股份有限公司

Dates

Publication Date

20260505

Application Date

20250616

Claims (8)

1. 1. A shadowless light source device capable of illuminating in multiple directions comprises a shell, a lamp panel and a diffusion plate, wherein the diffusion plate is arranged in the shell, the inner space of the shell is divided into an installation space and a storage space, the lamp panel is fixed in the installation space, a window and an opening which are communicated into the storage space are formed in the outer wall of the shell, the opening is used for allowing a detected object to enter the storage space, the window is used for allowing a camera to collect images of the detected object in the storage space, a first reflection mirror surface is arranged in the storage space and arranged on a path of the diffusion plate for diffusing light and used for reflecting the light to the side face or/and the bottom face of the detected object, and the first reflection mirror surface is arranged on one side far away from the window so as to reflect side face images or/and bottom face images of the detected object out of the window.
2. 2. The multi-directional illumination shadowless light source apparatus as set forth in claim 1, wherein the diffusion surface of said diffusion plate is arc-shaped, and a part of the light emitted by said lamp panel is irradiated onto the top surface and the side surface of said object to be detected after passing through said diffusion plate, and another part is irradiated onto said first reflecting mirror surface.
3. 3. The multi-azimuth illumination shadowless light source apparatus as set forth in claim 2, wherein said first reflecting mirror extends in arc shape, and said object to be detected is provided with said first reflecting mirror at least on opposite sides so that said first reflecting mirror can reflect both side image and bottom image of said object to be detected outside said window at the same time.
4. 4. The multi-directional illumination shadowless light source apparatus as claimed in claim 3, wherein said installation space is annular, said lamp panel is arranged in said installation space in a ring shape, said diffusion plate is of a ring-shaped structure, and said first reflecting mirror surface is of a bowl-shaped structure recessed away from said diffusion plate.
5. 5. The multi-directional illumination shadowless light source apparatus as defined in claim 4 wherein said housing is provided with said opening at a side opposite said window, said opening extending through said first mirror surface of the bowl-like structure.
6. 6. The multi-azimuth illumination shadowless light source apparatus as set forth in claim 4, wherein said housing is provided with a second reflecting mirror surface on an inner wall in said installation space, said second reflecting mirror surface being annularly arranged.
7. 7. The multi-azimuth illumination shadowless light source apparatus as claimed in claim 6, wherein said lamp panel is arranged with its illumination direction facing downward, and a side wall of said housing in said installation space is provided with said second reflection mirror surface in a ring shape.
8. 8. The multi-directional illumination shadowless light source device as set forth in claim 7, wherein said housing comprises a housing body and an upper cover, said lamp panel is fixed at the bottom of said upper cover, one end of said diffusion plate is fixed at the side wall of said housing body, the other end of said diffusion plate is fixed at the bottom of said upper cover, said housing body, said upper cover and said diffusion plate are enclosed together to form said annular installation space, said second mirror surface is provided on the inner side wall of said housing body, said window is provided on said upper cover, said opening is provided on said housing body, and said first mirror surface is provided on the inner wall of said housing body.

Description

Shadowless light source device for multi-azimuth illumination Technical Field The utility model relates to the technical field of light sources, in particular to a shadowless light source device for multi-directional illumination. Background In the field of machine vision detection at present, in order to realize the function of performing vision detection on multiple directions (i.e. multiple surfaces) of an object to be detected, there are two general modes, the first mode is to set multiple stations, and a light source and a camera are arranged on each station, and the light source and the camera on each station are responsible for polishing and image acquisition on a corresponding surface of the object to be detected, so as to realize the function of performing flaw detection on the multiple surfaces of the object to be detected, and the mode has lower vision detection efficiency because the object to be detected needs to be moved to each station in turn; the second mode is to place the detected object in a light source, and make the light source supplement light to multiple surfaces of the detected object, the light source will set windows at positions corresponding to the surfaces to be detected of the detected object, a camera will be set at the outer side of each window during testing, and the functions of flaw detection to multiple surfaces of the detected object are realized by using multiple cameras and a light source. However, both of the above methods require a plurality of cameras to acquire images of a plurality of directions of the object to be detected, and have a disadvantage of high visual detection cost, so that improvements are required in the prior art. Disclosure of utility model The utility model provides a shadowless light source device with multi-direction illumination, which mainly solves the technical problem of how to realize the function of collecting images of a plurality of directions on a detected object in a low-cost mode. In order to achieve the above object, the present utility model provides the following technical solutions: A shadowless light source device capable of illuminating in multiple directions comprises a shell, a light plate and a diffusion plate, wherein the diffusion plate is arranged in the shell, the inner space of the shell is divided into an installation space and an object placing space, the light plate is fixed in the installation space, a window and an opening which are communicated to the object placing space are arranged on the outer wall of the shell, the opening is used for allowing a detected object to enter the object placing space, the window is used for allowing a camera to collect images of the detected object in the object placing space, a first reflection mirror surface is arranged in the object placing space, is arranged on a path of the diffusion plate for diffusing light and is used for reflecting the light to the side face or/and the bottom face of the detected object, and the first reflection mirror surface is arranged on one side of the diffusion plate away from the window so as to reflect the side face image or/and the bottom face image of the detected object to the outside the window. In one of the technical schemes, the diffusion surface of the diffusion plate is arc-shaped, and after the light emitted by the lamp panel passes through the diffusion plate, one part of the light irradiates the top surface and the side surface of the detected object, and the other part irradiates the first reflecting mirror surface. In one of the technical schemes, the first reflecting mirror surface extends in an arc shape, and the detected object is provided with the first reflecting mirror surface at least at two opposite sides, so that the first reflecting mirror surface can reflect both the side image and the bottom image of the detected object to the outside of the window. In one of the technical schemes, the installation space is annular, the lamp panels are annularly arranged in the installation space, the diffusion plate is of an annular structure, and the first reflecting mirror surface is of a bowl-shaped structure which is opposite to the diffusion plate and is sunken. In one of the technical solutions, the housing is provided with the opening on a side opposite to the window, the opening penetrating the first reflecting mirror surface of the bowl-shaped structure. In one of the technical schemes, the inner wall of the housing in the installation space is provided with a second reflecting mirror surface, and the second reflecting mirror surface is annularly arranged. In one of the technical solutions, the irradiation direction of the lamp panel is downward, and the side wall of the housing in the installation space is provided with the annular second reflecting mirror surface. In one of the technical schemes, the shell comprises a shell body and an upper cover, the lamp panel is fixed at the bottom of the upper cover, one end of the diffu