Equations
Image height from distances
Optics · id lens_magnification
\frac{h_i}{h_o} = \frac{d_i}{d_o}
| Symbol | Quantity | Unit | Meaning | Usual range |
|---|---|---|---|---|
hi | image height | m | Height of the image | 1e-06 to 10000 |
ho | object height | m | Height of the object | 1e-06 to 10000 |
di | image distance | m | Distance from the lens to the image | 0.0001 to 1e+06 |
do | object distance | m | Distance from the object to the lens | 0.0001 to 1e+06 |
Assumptions
- Thin lens
- Magnitudes only (inversion ignored)
Valid when
- No extra conditions.
Found by
Questions with these words retrieve this equation: magnification, image height, lens, projector, camera, object height.
Source
OpenStax University Physics Volume 3, Chapter 2 (reference; entry written by the project). License: MIT. Entry confidence: 0.98.