At night human low light vision is almost entirely blue-green. These need to be at peak sensitivity to function properly. The photoreceptors in the eye are just like a photography camera. They have a dynamic range and can be over saturated. It takes time for eyes to adjust. However, at night, the red photoreceptors in the eyes are not used under normal low light conditions. This makes red the ideal color to use while maintaining the best vision compromise if the device is removed quickly or shuts off.
Unfortunately, if a person is color blind or has less red photoreceptors for some reason, this scheme may not be ideal. However, in circumstances like a combat zone, over saturating the green/blue photoreceptors could be a major disadvantage.
As a former pro auto body painter, it is surprising how many people have various degrees of impaired color vision. It is one job where a person’s ability to discern color is critical and a big filter for good helpers and apprentices. It is quite common to have some degree of color blindness and not be aware of it.
At night human low light vision is almost entirely blue-green. These need to be at peak sensitivity to function properly. The photoreceptors in the eye are just like a photography camera. They have a dynamic range and can be over saturated. It takes time for eyes to adjust. However, at night, the red photoreceptors in the eyes are not used under normal low light conditions. This makes red the ideal color to use while maintaining the best vision compromise if the device is removed quickly or shuts off.
Unfortunately, if a person is color blind or has less red photoreceptors for some reason, this scheme may not be ideal. However, in circumstances like a combat zone, over saturating the green/blue photoreceptors could be a major disadvantage.
As a former pro auto body painter, it is surprising how many people have various degrees of impaired color vision. It is one job where a person’s ability to discern color is critical and a big filter for good helpers and apprentices. It is quite common to have some degree of color blindness and not be aware of it.
At night human low light vision is almost entirely blue-green. These need to be at peak sensitivity to function properly. The photoreceptors in the eye are just like a photography camera. They have a dynamic range and can be over saturated. It takes time for eyes to adjust. However, at night, the red photoreceptors in the eyes are not used under normal low light conditions. This makes red the ideal color to use while maintaining the best vision compromise if the device is removed quickly or shuts off.
Unfortunately, if a person is color blind or has less red photoreceptors for some reason, this scheme may not be ideal. However, in circumstances like a combat zone, over saturating the green/blue photoreceptors could be a major disadvantage.
As a former pro auto body painter, it is surprising how many people have various degrees of impaired color vision. It is one job where a person’s ability to discern color is critical and a big filter for good helpers and apprentices. It is quite common to have some degree of color blindness and not be aware of it.
Latest Answers