Lens Calculator
Solve thin-lens quantities (f, u, v) for a chosen unknown.
Input Data
Solve
F
U
V
Results
Computed value.
0.15
Explanatory note.
1/v = 1/f − 1/u = 6.6667 → v = 0.1500 m（實像）。
At a glance:1/f = 1/u + 1/v. Solve for any one given the other two. Complements lens-formula and lens-power.
Formula
1/f = 1/u + 1/v.
How to Use
- Pick what to solve and enter two values.
- The tool returns the third.
Case Studies
f=0.1, u=0.2
v = 0.2 m.
FAQ
v negative?
Means a virtual image (same side as object).
Related Tools
References
Content review: Calculatorism Science Team. Results are for reference only; please refer to the relevant authorities for the official figures.