Scotopic vision
- Scotopic vision
Scotopic vision is the
monochromatic vision of theeye in low light. Sincecone cells are nonfunctional in low light, scotopic vision is produced exclusively throughrod cells so therefore there is no color perception. Scotopic vision occurs atluminance levels of 10-2 to 10-6 cd/m².Mesopic vision occurs in intermediate lighting conditions (luminance level 10-2 to 1 cd/m²) and is effectively a combination of scotopic and photopic vision. This however gives inaccurate visual acuity and colour discrimination.In normal light (
luminance level 1 to 106 cd/m²), the vision of cone cells dominates and isphotopic vision . There is goodvisual acuity (VA) and colour discrimination.In scientific literature, one occasionally encounters the term
scotopic lux which corresponds tophotopic lux , but uses instead the scotopic visibility weighting function. [ [http://books.google.com/books?id=GUVHtJCtM0UC Photobiology: The Science of Light and Life] (2002), Lars Olof Björn, [http://books.google.com/books?id=GUVHtJCtM0UC&pg=PA45&source=gbs_toc_r&cad=0_0&sig=xLVz68xyrQB3DzosDDO9upHfsdU#PPA43,M1 p.43] , ISBN 1402008422]ee also
*
Adaptation (eye)
*Purkinje effect
*Averted vision References
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