Enter the wavelength of light and the diameter of the lens aperture that light is passing through to calculate the angular resolution of that aperture.
Angular Resolution Formula
The following equation is used to calculate the angular resolution of an aperture.
θ = 1.22 * λ / d
- Where θ is the angular resolution in radians
- λ is the wavelength of light (nm)
- is the diameter of the lens
Angular Resolution is the capacity of an object to separate two objects that are located at a distance. Another way of thinking of angular resolution is the ability to distinguish between objects that are close together. The higher the resolution better the ability to distinguish and the greater distance this can be achieved at.
The human eye has an angular resolution itself. This resolution is extremely accurate. In fact, the diameter of your pupil changes throughout the day so the angular resolution also changes.
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