spot reflector

例句：

1. 1. The spot reflector is used to adjust the brightness of the lights.
   这个反光镜用来调整灯光的亮度。
2. 2.The spot reflector was placed at the front of the camera to improve its performance.
   这个反光镜被放置在相机的前部，以提高其性能。
3. 3. The spot reflector helped me to see the details in the photograph clearly.
   这个反光镜帮助我清晰地看到了照片中的细节。