摄像装置和电子设备
By setting a light-shielding film between the photoelectric conversion unit and the charge retention unit and optimizing the optical system, the light leakage problem was solved, the imaging performance of the camera device was improved and the noise was reduced, and higher imaging quality was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SONY SEMICON SOLUTIONS CORP
- Filing Date
- 2020-12-05
- Publication Date
- 2026-07-17
AI Technical Summary
In existing global shutter mode camera devices, there is a light leakage problem in the horizontal light-shielding film between the photoelectric conversion unit and the charge retention unit, which leads to a decrease in imaging performance and an increase in noise.
A first light-shielding film is provided between the photoelectric conversion unit and the charge retention unit, and an opening is provided in part of it to ensure the signal charge transmission path. At the same time, the arrangement of the focusing optical system and the photoelectric conversion unit is optimized to reduce unnecessary light entering the charge retention unit.
It effectively reduces parasitic light sensitivity, improves imaging performance, reduces image noise, and enhances image quality.
Smart Images
Figure CN114600448B_ABST