Fun fact- true- but partial answer! As a color- “green” exists near the middle of the visible spectrum. This means that we can more readily make out “shades” or variants of green as its most extreme ranges are not at the extremes of visible light. What is also important however is that not only are almost half of your eyes comes tuned to see “green”- more than any other color- making green easy to distinguish- but the location of the cones is important.
“Blue” will appear slightly “to the front” of your eye- “Red” to the “back,” this is in part how 3D glasses work- the slight “offset” of the way your eyes process light from these colors- and the way your brain reconciles the “duplicate image” produces “3D” which is also why some people get eyestrain and headaches form this type of “3D” or it doesn’t work for them.
2 important things there:
1. The comes for green are not just more numerous- but in a very optimal place in the structure of the eye in relation to the pupil.
2. Green- in general- is less straining on the eyes or CNS to process for long periods.
So we can (in general) see more shades of green- a huge plus for a mono color image projection- but you an also generally speaking- look at green projections longer with less stress. Even though we “see green better-“ red as a color is often more attention grabbing- as a design consideration a person may be more likely to “notice” red- but for the purpose and use of light amplification devices like NV- the advantages of green are significant.
Also- the REASON green was chosen is largely as stated above- but the reason that you see green in most night vision equipment is that most night vision signals are black and white. It’s hard to amplify light but easy to amplify electricity. Sensors sorts like little solar panels transform light to electricity, it is amplified, adjusted and focused- and then emitted as more powerful light. But instead of black and white which is harsher on the eyes and harder to see detail- it is put through a filter- often phosphor- so the light is tinted green.
1. The comes for green are not just more numerous- but in a very optimal place in the structure of the eye in relation to the pupil.
2. Green- in general- is less straining on the eyes or CNS to process for long periods.