In all 17 species, the commonest kind of light receptors were "rod" cells, which are highly sensitive to light and allow night vision but cannot tell colors apart, they found.

在所有17种鲨鱼中，最常见的感光细胞是“杆状”细胞，这种细胞对光线非常敏感，可以使鲨鱼具有夜视能力，但这种细胞无法分辨颜色。

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Vision, for example, is made possible in part by rhodopsin, a pigment molecule that is extremely sensitive to light.

例如，视觉部分通过一种对光极度敏感的色素分子视紫质来实现。

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Green is the color used for night-vision goggles because the human eye is most sensitive to and able to discern the most shades of that color.

绿色是夜视镜所采取的色彩，由于人类的视觉对绿色的分歧深淡色调最为敏感，更易于辨识。

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Trichromatic vision involves three pigments, called opsins, that are sensitive to different wavelengths of light.

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Enhanced-vision technology relies on infrared to produce a real-time view of the ground, sensitive enough to pick up a deer or a person from 1, 380 feet up in foggy conditions.

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