Smartphone Projector Calculator
Free calculate projection distance, image size, and magnification for diy smartphone projectors using lenses.
Input Parameters
inches
Distance from phone to lens
Results
Enter parameters to calculate projection properties
Lens Equation
Thin Lens Equation
1/f = 1/u + 1/v
Where:
- • f = focal length
- • u = object distance
- • v = image distance
Magnification
M = v/u = h_i/h_o
Where h_i is image height and h_o is object height