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By placing a diffuser in front of the light source to scatter the light emitted by the light source, the problem of light spots caused by the supplementary lighting device is solved, and the image clarity is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NETEASE YOUDAO (HANGZHOU) SMART TECH CO LTD
- Filing Date
- 2025-07-08
- Publication Date
- 2026-07-10
AI Technical Summary
In related technologies, when supplementing light, the supplementary lighting device may cause excessive local light intensity, resulting in light spots on the image formed by the scanning camera and affecting the image clarity.
A diffuser is placed in front of the light source to scatter the light emitted by the light source, thereby avoiding excessive local light intensity and overexposure, and improving image clarity.
It effectively avoids the formation of light spots on the scanned image, improving image clarity and scanning effect.
Smart Images

Figure CN224480705U_ABST