Lecture 4 - Lens Materials and Design Considerations

Question 1

Minus lenses are always thickest where on a lens?

Answer 1

At the edges

Question 2

What is the index of refraction, abbe value and determine whether or not the chromatic aberration is low, medium or high for GLASS?

Answer 2

n= 1.52
Abbe Value = 58
Low chromatic abr.

Question 3

What is the index of refraction, abbe value for FLINT?

Answer 3

n = 1.58

Abbe Value = 30 to 40

Question 4

What is the index of refraction, abbe value for BARIUM?

Answer 4

n=1.54

Abbe Value = 55 - 59