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PHY2061
R. D. Field
Department of Physics
chp40_5.doc
University of Florida
Thin Lenses Formula
Lens Makers Equation:
The lens maker&s formula is
1
1
11
12
f
n
RR
=−
−
()
,
where
f
is the
focal length
,
n
is the
index of refraction
,
R
1
is the radius of
curvature of
side 1
(
side that light enters the lens
), and
R
2
is the radius of
curvature of
side 2
(
side that light exits the lens
).
Lens Equation:
1
pi
f
+=
Magnification:
m
i
p
Sign Conventions:
Variable
Assigned a
Positive
Value
Assigned a
Negative
Value
p
(object distance)
(almost) always positive
i
(image distance)
if image is on Rside (
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This note was uploaded on 05/31/2011 for the course PHY 2061 taught by Professor Fry during the Spring '08 term at University of Florida.
 Spring '08
 FRY
 Physics, Light

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