Lighting structure and scanning device

A scanning device used for scanning and imaging a to-be-scanned object, wherein the scanning device comprises:

• a lighting structure, used in the scanning device, comprising a light source and a light guide, wherein
• the light source comprises a plurality of light emitters spaced within a first plane along a first direction;
• the light guide comprises a plurality of light guiding bodies arranged in parallel, the light guiding bodies form a one-to-one correspondence with the light emitters, each light guiding body have a light entering surface and a light leaving surface which are both curved surfaces, the curve of the intersection between each light leaving surface and a first cross-section has a first curvature radius, the curve of the intersection between each light entering surface and a second cross-section has a second curvature radius, the first cross-section is perpendicular to the second cross-section, the first cross-section and the second cross-section are both perpendicular to the first plane;
• and
• the light emitted from the light source is uniformly projected on a to-be-scanned object through the light guide.