photo-sensor

例句：

1. 1.The photo-sensor is used to detect the presence of light.
   光传感器用于检测光线的存在。
2. 2.The camera uses a photo-sensor to capture images.
   相机使用光传感器来捕捉图像。
3. 3.The sensor measures the temperature in real time, providing feedback to the user.
   传感器实时测量温度，向用户提供反馈。