Ray Diagram Simulator

f = 10 cm

Convex lens: f positive

Distance (u) = 25 cm

Height (h) = 5 cm

Show principal rays

Show image

Show focal points

Show equations

Show ray fan

Show sun rays

Show ray trace

Show labels

━━ Ray 1: parallel → focal

━━ Ray 2: through centre

━━ Ray 3: through focal → parallel

- - - Virtual rays

Ray fan (all scatter)

━━ From tip

━━ From mid

━━ From base

━━ Sun rays

Ray trace (emergent)

orange→cyan gradient
by height on tree

Thin Lens / Mirror Equations

1/v + 1/u = 1/f

Magnification m = -v/u

Image distance v

Image height h'

Image type