Limit Numbers Resolution For Free

The limit of resolution (or resolving power) is a measure of the ability of the objective lens to separate in the image adjacent details that are present in the object. It is the distance between two points in the object that are just resolved in the image.

Resolving power or limit of resolution is the ability to distinguish two close objects as distinct. It is calculated by the formula 0.61 ?/ numerical aperture, where ? is the wavelength of light and numerical aperture is the light collecting ability of lens.

Resolution is the ability of the lenses to distinguish between two adjacent objects as distinct and separate. A compound light microscope has a maximum resolution of 0.2 µm, this means it can distinguish between two points ? 0.2 µm, any objects closer than 0.2um will be seen as 1 object.

Resolution is the distance that must separate two points in order for the points to be distinguishable*. Due to a physical process called diffraction, even a perfectly designed microscope has an optical resolution no better than about 200 nm.

In general, screen resolution is the number of pixels a screen can show horizontally and vertically. So, a screen with a resolution of 1920x1080 -- 1080p or full HD -- can display 1,920 pixels horizontally and 1,080 pixels vertically.

The resolution 1920×1080 (1080p) is quite a bit wider than it is tall. The ratio of its width to height is 16 to 9, represented as an aspect ratio .

The factor of 1.22 applies to circular apertures like the pupil of your eye or the apertures in telescopes and cameras. When light passes through an aperture with diameter D, then diffraction limits the resolution to ? = 1.22?/D. If the angular separation of two sources is less than ?, they cannot be resolved.