Illuminating light source device with controllable flexible area

Abstract

The invention relates to an illumination light source device with a controllable flexible area. The illumination light source device comprises an annular light source, the annular light source is an angle-variable annular light source, and the angle-variable annular light source comprises a cylindrical displacement table located in the middle of the annular light source, a plurality of slideways anda plurality of strip-shaped light sources; the slideways are arranged at the periphery of the cylindrical displacement table, each slideway is connected with one strip-shaped light source, and the connection mode is that one end, close to the inner side, of each strip-shaped light source is connected to the slideway in a hinged manner, a sliding displacement block is arranged on the slideway, and fulcrums are arranged on the strip-shaped light source and the sliding displacement block respectively; the fulcrum of the strip-shaped light source and the fulcrum of the sliding displacement block are connected with a fixed long light source rod in a hinged manner, and by controlling the movement of the sliding displacement block, the strip-shaped light source is pushed to change an illumination angle.

Description

technical field [0001] The invention belongs to the technical field of precision measurement and the field of optical engineering, in particular to the field of lighting source devices with controllable flexible regions. Background technique [0002] Illumination is the key condition for the imaging of the visual inspection system, which directly affects the quality of the visual inspection system. In view of the imaging system's requirement for a large depth of field and poor lighting conditions, a piece of equipment is often replaced with different products for visual inspection, and the light source device cannot be adjusted efficiently. Therefore, it is impossible to efficiently complete high-quality visual inspection tasks. In view of the above problems, how to optimize the lighting quality of the visual inspection system has attracted widespread attention from experts and scholars. Comprehensively considering the field of view, depth of field, resolution and other para...

AI Technical Summary

Problems solved by technology

[0004] Among them, parallel light and diffuse light have their own application advantages and disadvantages. Parallel light illumination can improve the edge contour contrast of the detected object in the detection system, but it requires the use of a telecentric lens; diffuse light illumination can reduce the surface emission of the measured object, Prevent shadows and increase the volume of the illuminated area, but the light and shadow effects are relatively flat and not sharp enough

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