- #1
mathman44
- 207
- 0
Homework Statement
Calculate the matrix for the optical system which takes rays from the object plane
to the image plane for a simple lens and show how this leads to 1/v = 1/u + 1/f
Also show that the matrix can be written in the form
[tex]\left[ \begin{array}{cc} 1/M & b \\ 0 & M \end{array} \right][/tex]
The Attempt at a Solution
Ok... so the matrix for the system is going to be m3*m2*m1
where m3 is the translation matrix for a distance "v"
[tex]\left[ \begin{array}{cc} 1 & 0 \\ -v & 1 \end{array} \right][/tex]
m2 is the thin lens matrix
[tex]\left[ \begin{array}{cc} 1 & -1/f \\ 0 & 1 \end{array} \right][/tex]
m1 is the translation matrix for a distance "u"
[tex]\left[ \begin{array}{cc} 1 & 0 \\ u & 1 \end{array} \right][/tex]
Multiplying these out, its obvious that it cannot be written in the required form. So far, does this look okay? I can't see anything immediately wrong with what I've done so far.