| 摘要 |
A micro-lens built-in laser includes a light source, a transparent layer and a micro-lens. The light source emits light. The micro-lens and the light source are formed on a same substrate in a same semiconductor process. The micro-lens refracts and adjusts light beams emitted from the light source, and the adjusted light is emitted at an emitting surface of the micro-lens. The micro-lens built-in laser controls its radiation angle by changing the thickness of the transparent layer and the shape of the micro-lens.
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