而且， 基于量子点的光电探测器产生的图像噪点更少， 因此即便像素没有提高， 产生的图像也会比以前锐利。
Moreover, photodetectors based on quantum dots produce less noisy images, so the picture is sharper even if the number of pixels is not increased.
它的物理属性(物理术语称作光谱很窄)意味着即便没有光照射到它上面，它有时也会发射电子，这样就产生了图像噪点。
Its physical properties (its narrow bandgap, in physics parlance) mean that it sometimes releases electrons even though no light has fallen on it, resulting in a noisy image.
这样会增加图像的噪点，但最好还是尝试一下，因为长时间曝光会产生令人讨厌的，明亮的彩色噪点。
You're going to get some noise, but it's best to try and avoid the obnoxious, brightly-colored pixel noise often associated with digital cameras and extremely long exposures.
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