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  2. 1951 USAF resolution test chart - Wikipedia

    en.wikipedia.org/.../1951_USAF_resolution_test_chart

    A 1951 USAF resolution test chart is a microscopic optical resolution test device originally defined by the U.S. Air Force MIL-STD-150A standard of 1951. The design provides numerous small target shapes exhibiting a stepped assortment of precise spatial frequency specimens. It is widely used in optical engineering laboratory work to analyze and ...

  3. Optical resolution - Wikipedia

    en.wikipedia.org/wiki/Optical_resolution

    Each element is the 6th root of 2 smaller than the preceding element in the group (e.g. element 1 is 2^0, element 2 is 2^(-1/6), element 3 is 2(-1/3), etc.). By reading off the group and element number of the first element which cannot be resolved, the limiting resolution may be determined by inspection.

  4. List of common display resolutions - Wikipedia

    en.wikipedia.org/wiki/List_of_common_display...

    The resolution of 960H depends on whether the equipment is PAL or NTSC based: 960H represents 960 x 576 (PAL) or 960 x 480 (NTSC) pixels. [29] 960H represents an increase in pixels of some 30% over standard D1 resolution, which is 720 x 576 pixels (PAL), or 720 x 480 pixels (NTSC). The increased resolution over D1 comes as a result of a longer ...

  5. LogMAR chart - Wikipedia

    en.wikipedia.org/wiki/LogMAR_chart

    The chart was designed by Ian Bailey [5] and Jan E. Lovie-Kitchin at the National Vision Research Institute of Australia. [1] [3] They described their motivation for designing the LogMAR chart as follows: "We have designed a series of near vision charts in which the typeface, size progression, size range, number of words per row and spacings were chosen in an endeavour to achieve a ...

  6. Siemens star - Wikipedia

    en.wikipedia.org/wiki/Siemens_star

    A Siemens star, or spoke target, is a device used to test the resolution of optical instruments, printers, and displays. It consists of a pattern of bright "spokes" on a dark background that radiate from a common center and become wider as they get further from it. In concept, the spokes only meet at the exact center of the star – the spokes ...

  7. File:EIA Resolution Chart 1956.svg - Wikipedia

    en.wikipedia.org/wiki/File:EIA_Resolution_Chart...

    File history. File usage. Global file usage. Size of this PNG preview of this SVG file: 776 × 600 pixels. Other resolutions: 311 × 240 pixels | 621 × 480 pixels | 994 × 768 pixels | 1,280 × 989 pixels | 2,560 × 1,978 pixels | 990 × 765 pixels. Original file ‎ (SVG file, nominally 990 × 765 pixels, file size: 53 KB) This is a file from ...

  8. Display resolution - Wikipedia

    en.wikipedia.org/wiki/Display_resolution

    The eye's perception of display resolution can be affected by a number of factors – see image resolution and optical resolution. One factor is the display screen's rectangular shape, which is expressed as the ratio of the physical picture width to the physical picture height. This is known as the aspect ratio. A screen's physical aspect ratio ...

  9. Image resolution - Wikipedia

    en.wikipedia.org/wiki/Image_resolution

    For the digital audio quality term, see High-resolution audio. Image resolution is the level of detail of an image. The term applies to digital images, film images, and other types of images. "Higher resolution" means more image detail. Image resolution can be measured in various ways. Resolution quantifies how close lines can be to each other ...

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