I don't exactly follow the question, but here are some translation answers: Before the lens we don't show translation approaching the lens because the ray has no angle and nothing changes. Inside the lens we don't show translation because this is a "thin lens" approximation. After the lens the translation term is the [ 1 f 0 1] matrix.
Very illustrative. Thank you
Why can you divide by Y (trying to solve for 1/f) if we are assuming Y=0 at f?
i was in the library. just near to shout -"you missed the minus " then later you cleared that
Why theres no translation betwen the two ladt matrx for distance if f
I don't exactly follow the question, but here are some translation answers:
Before the lens we don't show translation approaching the lens because the ray has no angle and nothing changes.
Inside the lens we don't show translation because this is a "thin lens" approximation.
After the lens the translation term is the [ 1 f 0 1] matrix.