Resolution Power Calculator

How to Use the Calculator

1. Enter the wavelength of light in micrometers (λ). This is typically around 0.55 μm for visible light.
2. Enter the numerical aperture (NA) of the objective lens. Higher values of NA provide better resolution.
3. Click the "Calculate" button to compute the resolution power.
4. The result will be displayed in micrometers.

Working Principle

The resolving power of a microscope is the ability to distinguish between two points that are very close to each other. It is determined by the wavelength of light used and the numerical aperture of the objective lens. The formula used to calculate the resolution power is derived from the Abbe diffraction limit:

\[ \text{Resolution Power} (\text{in micrometers}) = \frac{0.61 \times \lambda}{\text{NA}} \]

This formula shows that the resolution power is inversely proportional to the numerical aperture and directly proportional to the wavelength of light. A smaller wavelength and a higher numerical aperture result in better resolution.