light modulator

例句：

1. 1. The light modulator is responsible for adjusting the brightness of the display.
   光调制器负责调整显示器的亮度。
2. 2. The engineer used a light modulator to create a gradient effect on the screen.
   工程师使用光调制器在屏幕上创造了渐变效果。
3. 3. The new device incorporates a light modulator that can be controlled remotely.
   这款新设备集成了一个可远程控制的光调制器。