Most visible wavelength/ color for mesopic vision

1. What is Mesopic vision test?
2. What is the mesopic range?
3. What is photopic scotopic and mesopic vision?
4. What lighting level is photopic vision likely to?

What is Mesopic vision test?

Mesopic vision, sometimes also called twilight vision, is a combination of photopic and scotopic vision under low-light (but not necessarily dark) conditions. Mesopic levels range approximately from 0.01 to 3.0 cd/m² in luminance. Most nighttime outdoor and street lighting conditions are in the mesopic range.

What is the mesopic range?

Mesopic: This term refers to a range of human vision with both rods and cones active. There is no hard-line transition at either end, but for most intents and purposes the mesopic range is generally considered to be from 3 cd/m² down to 0.01 cd/m².

What is photopic scotopic and mesopic vision?

Scotopic and Photopic Vision

Scotopic vision uses only rods to see, meaning that objects are visible, but appear in black and white, whereas photopic vision uses cones and provides color. Mesopic vision is the combination of the two and is used for most scenarios.

What lighting level is photopic vision likely to?

Photopic vision is the vision of the eye under well-lit conditions (luminance levels from 10 to 10⁸ cd/m²). In humans and many other animals, photopic vision allows color perception, mediated by cone cells, and a significantly higher visual acuity and temporal resolution than available with scotopic vision.