A yellow filter is placed in front of the camera lens to assure that no blue light will be imaged.

为了不使蓝光进入相机而成像，可在相机的透镜前加一黄滤色镜。

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A yellow filter is placed in front of the camera lens to assure that no blue light will be imaged.

为了不使蓝光进入相机而成像，可在相机的透镜前加一黄滤色镜。

youdao