Magnifying glass

Magnifying glass - connecting lens with a focal length of 1-10 cm. An apparent, enlarged, direct image is created. For Z magnification:


 * $$ Z = \frac{\delta + f}{f} $$
 * where δ = 0.25 m (conventional viewing distance) and f = focal length.

related articles

 * Vision defects
 * Eye

Source

 * KUBATOVA, Senta. Biophoto [online]. [feeling. 2011-01-31]. .