为什么要对VCSEL检测

Why VCSEL need to be inspected?

★VCSEL是由几千甚至上万个激光器组成，需保证所有激光器良好的一致性，才能保证VCSEL的亮度和均匀性。

VCSEL is composed of thousands or even tens of thousands of lasers. It is necessary to ensure the good consistency of all lasers to ensure its brightness and uniformity.

★VCSEL对激光的坏点数有要求。

VCSEL only accept a few bad laser.

★VCSEL对激光的光束和发光角度有要求。

VCSEL has requirements on laser beam and its Angle.

★VCSEL的光功率需要检测。

The optical power of VCSEL needs to be checked.

★VCSEL的量产良品率不高，需要视觉检测筛选。

VCSEL mass production yield is not high, which need AOI for checking and sorting.