OPT 1430L Ophthalmic Lab II UNIT 3 Flashcards
1
Q
To verify that a glass lens has been impact resistance treated a ___ is used:
A
Polarascope
2
Q
To test the impact resistance of a glass lens a ___ is used:
A
Drop Ball Tester
3
Q
UV light transmission is measured by:
A
Spectrometer
4
Q
Lens variables that effect tinting include all of the following except:
A
Style
5
Q
Three tint unit heating types are identified as:
A
Water, HTF, Dry
6
Q
Visible Light transmission is measured by:
A
Spectrometer
7
Q
Lens color density and shade is measured by:
A
Color Analyzer
8
Q
Tints should be heated to:
A
205 to 210 degrees
