ABO Prep/Study Guide 2024 Questions with Complete Solutions| American Board of Opticianry

ABO Prep/Study Guide 2024 Questions with Complete Solutions| American Board of Opticianry what is the relationship between abbe value and chromatic aberration? (Ans: - The abbe value of a material is INVERSELY proportional to the chromatic aberration; the higher the abbe value, the lower the chromatic aberration refraction (Ans: - the bending of light as it passes from one medium to another of a different index of refraction; the amount of refraction depends on the incident angle and index of medium refractive index (Ans: - indicates how much the material will refract or bend light as it enters the material from air mid index (Ans: - 1.53-1.57 base index (Ans: - glass, 1.49-1.52 high index (Ans: - any index over 1.58 speed of light in air (Ans: - 186,000 mps if light travels at 124,000mps in a medium, find the refractive index (N) (Ans: - 186,000/124,000=1.50 if light travels at 121,569 in a medium, find the refractive index (N) (Ans: - 186,000/121569=1.53 (trivex) specific gravity (Ans: - the density of a lens material by comparing its density to water. The higher the specific gravity, the higher the density, the heavier the lens