In infrared photography, the film or image sensor used within a digital camera is sensitive to infrared lighting, which allows the camera to pick up any light that's invisible to the human eye.
在红外线摄影中，数码相机上使用的胶片传感器或图像传感器对红外光感光，能让相机拾取人眼不可见的任何光线。
Millions of CCDs are made each year for mass market cameras, but they also proved a transformational technology in science by providing a much more sensitive light sensor than previously existed.
每年都会生产数百万个CCD，以满足大众数码相机的市场需要，但结果证明它们也是科学领域的一项重大技术变革，据此生产的光传感器比以前存在的各种光传感器都要敏感许多。
So Apple's using a newer backside-illuminated sensor that's more sensitive to light in addition to upping those megapixels — and we must say, pictures on the iPhone 4 look stunning.
的确如此。所以，除了升级像素外，Apple还采用了新型的，对光线更为敏感的机背照度传感器。
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