Lenses Flashcards
Axis of symmetry
An imaginary vertical line drawn through the optical centre of the line
Lens
A cruvedtransparent material that is smooth and regularly shaped so that when light strikes it the light refracts in a predictable and useful way
Diverging lens
Concave lens lens that is thinner and curves in ward
Thin lens
Lens that had a thickness that is slight compared to its focal length
Converging lens
Convex lens thicker at he centre of the lenses p
Material of lens
Transparent glass or very hard plastic
Used to magnify and project images
Uses concave lens
Some types of eyeglasses and telescopes
Image made concanve
Smaller upright virtual
Useconvex
Magnifying camera
Photographic enlargers
More than 2 focal lengths
Smaller inverted real
Camera uses to make smaller images
Between one and two focal lengths
Larger inverted real
Photographic enlargers
Slide projectors
Movie projectors
Less than one focal length
Larger upright virtual
Magnifying glass
Reading glasses
