一种iToF模组固定相位模式噪声标定装置及方法
By using reflective devices and a synchronization base plate to create optical signal consistency before iToF module lens installation, the problem of lens calibration error accumulation is solved, achieving low-cost and accurate fixed-phase mode noise calibration, and supporting batch iToF module calibration.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SIGMASTAR TECH LTD
- Filing Date
- 2023-05-08
- Publication Date
- 2026-07-17
AI Technical Summary
The existing fixed phase mode noise calibration process of iToF modules relies on lens calibration results, which leads to the accumulation of calibration errors. It also requires a special whiteboard and a complex environment, which increases production costs and difficulty, making it difficult to achieve batch calibration.
Before installing the iToF module lens, a reflective device and a synchronization base plate are used to create consistency in the flight time of the light signal at different positions within the pixel array. The reflective device is used to reflect and modulate the light signal for calibration, avoiding the influence of lens calibration errors, reducing equipment setup and maintenance costs, and supporting batch calibration.
It achieves accurate FPPN calibration without relying on lens calibration results, reduces calibration costs, improves calibration accuracy, supports simultaneous calibration of multiple iToF modules, and simplifies the calibration process.
Smart Images
Figure CN116540217B_ABST