Formula Sheet Flashcards
1
Q
vergence equation
A
L’ = L + F
2
Q
object vergence
A
L = n/l
3
Q
SSRI –> F =?
A
F = n’-n/r
4
Q
SSRI –> M = ?
A
M = y'/y M = n*l' / n'*l M = L/L'
5
Q
prentice rule
A
P = d * F
6
Q
effective lens power
A
Fc = F/(1-dF)
7
Q
lens effectivity
A
Feff = F / (1+dF)
8
Q
sphero-cylinder lenses
A
Fse = Fs + (Fc/2)
9
Q
curved reflective surfaces -> F = ?
A
F = -2n/r
10
Q
curved reflective surfaces -> L = ?
A
L = n/l L' = -n/l' L' = L + F
11
Q
lens-mirror system
A
F(LM) = 2*F1 + FM
12
Q
prism power & lens thickness
A
PG = (100(n-1) * g )/ D
13
Q
magnification
A
M = - (Foc /Fob)
14
Q
tube length
A
t = 1/Fob + 1/Foc t = f'ob + f'oc
15
Q
collimating magnifier
A
M = /ue/ * f M = F/4
