相机里面有两块隔板，他们就像防光的窗帘一样不让通过镜头的光线照射到传感器上。

There are two panels inside your camera that are like lightproof curtains on a window and block the light coming through the lens from hitting the sensor.

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如果演示的地点不具备足够的防光性，请选择深色背景，并为文本使用任何浅色。

If the venue of your presentation is not adequately light-proof, select a dark-colored background and use any light color for text.

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此外，使用贴有防眩光膜的平面屏幕，佩戴防眩光或有色眼镜，也有利于最大程度地减少炫光。

In addition, using a flat screen with an antiglare cover, and wearing glare-reducing or tinted lenses can help to minimize glare.

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