Lens / Mirror

Thin lens / spherical mirror equation: 1/f = 1/d_o + 1/d_i. Real distances are positive (object on incoming side, real image on outgoing side).

Output

• Image distance d_i and magnification m = −d_i / d_o.
• Real or virtual? Erect or inverted? Enlarged or reduced?
• Image height h_i = m · h_o.
• Mirror radius R = 2f. Optical power 1/f (dioptres if f in m).