Nao volume iv complet - Study guides, Class notes & Summaries

NAO Volume IV Complete Questions And Answers The amount of reflection of each surface of CR-39 plastic lenses is approximately: ANS 4% The absorption of light in lenses is classified by two variables. What are they? ANS Tint and lens transmission The denser the tint in a lens, the _____: ANS Less transmission of light through the lens Standard transmission in sunlenses should range between: ANS 15% and 30% If a person has exposure to sunlight at least 2 hours or more during the ...