• Thumbnail for Exit pupil
    the exit pupil is a virtual aperture in an optical system. Only rays which pass through this virtual aperture can exit the system. The exit pupil is the...
    9 KB (1,169 words) - 05:53, 21 July 2024
  • available to the viewer at the exact eye relief distance. An exit pupil larger than the observer's pupil wastes some light, but allows for some fumbling in side-to-side...
    5 KB (770 words) - 10:16, 11 June 2023
  • Thumbnail for Optical telescope
    related to something called the exit pupil. The exit pupil is the cylinder of light exiting the eyepiece and entering the pupil of the eye; hence the lower...
    58 KB (8,133 words) - 23:45, 21 July 2024
  • Thumbnail for Entrance pupil
    as seen through the optical elements behind it is called the exit pupil. The entrance pupil defines the cone of rays that can enter and pass through the...
    7 KB (756 words) - 06:18, 21 July 2024
  • Thumbnail for Monocular
    in the highest specifications is proportionally more expensive) Exit pupil Exit pupil is defined as the diameter of the objective lens divided by the...
    25 KB (3,107 words) - 18:58, 29 February 2024
  • Thumbnail for Binoculars
    erecting optics, reducing expense and overall weight. They also have large exit pupils, making centering less critical, and the narrow field of view works well...
    98 KB (11,096 words) - 16:26, 22 August 2024
  • Thumbnail for Pupil
    the pupil are either absorbed by the tissues inside the eye directly, or absorbed after diffuse reflections within the eye that mostly miss exiting the...
    24 KB (2,817 words) - 11:46, 17 April 2024
  • Thumbnail for Telecentric lens
    lens (often an objective lens or a camera lens) that has its entrance or exit pupil, or both, at infinity. The size of images produced by a telecentric lens...
    10 KB (1,261 words) - 14:00, 8 December 2023
  • Thumbnail for Telescopic sight
    the square of the exit pupil as measured in mm; a 36 mm objective lens diameter divided by the 4× magnification gives an exit pupil of 9 mm; 9×9=81) A...
    86 KB (10,871 words) - 20:25, 6 August 2024
  • The pupil magnification of an optical system is the ratio of the diameter of the exit pupil to the diameter of the entrance pupil. The pupil magnification...
    805 bytes (86 words) - 10:34, 14 January 2023
  • Thumbnail for Specter (sight)
    Field of view = 26 degrees at 1×, 6.5 degrees at 4× Entrance pupil diameter = 32 mm Exit pupil diameter = 8 mm Eye relief = 70 mm Specter DR 1.5–6× Length...
    11 KB (1,259 words) - 13:17, 13 August 2024
  • Thumbnail for Ray (optics)
    entrance pupil and exit pupil are images of the aperture stop, for real image pupils, the distance of the marginal ray from the optical axis at the pupil locations...
    13 KB (1,909 words) - 00:33, 18 July 2024
  • Thumbnail for Pupillary distance
    design of binocular viewing systems, where both eye pupils need to be positioned within the exit pupils of the viewing system. These viewing systems include...
    14 KB (1,653 words) - 23:45, 2 December 2023
  • Thumbnail for Aperture
    accepts (see entrance pupil). As a result, it also determines the ray cone angle and brightness at the image point (see exit pupil). The aperture stop generally...
    40 KB (5,147 words) - 06:44, 30 June 2024
  • Thumbnail for Numerical aperture
    the distance between the exit pupil of the lens and the position of the plate or film. Because the position of the exit pupil usually is unknown to the...
    17 KB (2,287 words) - 19:22, 25 August 2024
  • (England and Wales) Entrance pupil, the optical image of the aperture stop, as 'seen' through the front of a lens system Exit pupil, the image of the aperture...
    618 bytes (122 words) - 19:30, 9 November 2023
  • Thumbnail for Refracting telescope
    eyepiece; D – Entrance pupil diameter; d – Virtual exit pupil diameter; L1 – Objective lens; L2 – Eyepiece lens e – Virtual exit pupil – Telescope equals...
    34 KB (3,681 words) - 15:00, 19 August 2024
  • Thumbnail for Limiting magnitude
    pupil) of a telescope is larger than the human eye pupil, so collects more light, concentrating it at the exit pupil where the observer's own pupil is...
    21 KB (2,601 words) - 12:31, 23 August 2024
  • Thumbnail for USP-1
    1.25 kg Magnification: 4x Field of view: 8 (14) degrees Exit pupil diameter: 6.5 mm Exit pupil length: 35 mm Resolution limit: 13 sec Amount of light retained:...
    3 KB (297 words) - 12:32, 27 July 2024
  • Thumbnail for Optical aberration
    projects an image of the diaphragm, termed by Abbe the entrance pupil; the exit pupil is the image formed by the component S2, which is placed behind...
    58 KB (8,720 words) - 21:14, 7 August 2024
  • Thumbnail for Camera lens
    from inside the camera is the lens's exit pupil. In this simple case, the aperture, entrance pupil, and exit pupil are all in the same place because the...
    28 KB (3,490 words) - 23:04, 22 August 2024
  • Thumbnail for Image sensor format
    image field, due to the geometry of the light cone projected from the exit pupil of the lens to a point, or pixel, on the sensor surface. The effects are...
    57 KB (6,580 words) - 03:22, 28 July 2024
  • Thumbnail for L129A1
    optic for the L129A1 is the TA648-308 6×48 Trijicon ACOG providing a 8 mm exit pupil for ample light gathering and a wide field of view. Two locking bolts...
    11 KB (1,045 words) - 19:10, 23 June 2024
  • Thumbnail for Entocentric lens
    An entocentric lens is a compound lens which has its entrance or exit pupil inside the lens. This is the most common type of photographic lens. The aperture...
    974 bytes (87 words) - 20:17, 28 July 2024
  • Thumbnail for SUSAT
    Magnification: 4× Field of view: 10 degrees (177 mils) Objective diameter: 25,5 mm Exit pupil: 6.375 mm Eye relief: 25 mm Light permeability: >80% Reticle illumination:...
    4 KB (515 words) - 03:11, 22 February 2024
  • known for interviewing Ng Wai Chung during the Blitzchung Controversy Exit pupil, a virtual aperture in an optical system Search for "virtual" on Wikipedia...
    2 KB (265 words) - 14:25, 10 January 2023
  • Thumbnail for Magnification
    object glass is used as an object the image of which is known as the exit pupil. The diameter of this may be measured using an instrument known as a Ramsden...
    14 KB (1,988 words) - 23:10, 1 April 2024
  • Thumbnail for Lewis Machine & Tool Company
    optic for the L129A1 is the TA648-308 6×48 Trijicon ACOG providing a 8 mm exit pupil for ample light gathering and a wide field of view. Two locking bolts...
    24 KB (2,407 words) - 19:59, 19 August 2024
  • Thumbnail for PSO-1
    storage. Magnification: 4× Objective diameter: 24 mm Field of view: 6° Exit pupil: 6 mm Eye relief: 80 mm Limiting optical resolution: 12 SOA Power supply...
    10 KB (1,281 words) - 17:07, 16 August 2024
  • binoculars. In that application, it gives better image quality and a round exit pupil. A concave lens of flint glass is commonly combined with a convex lens...
    4 KB (393 words) - 19:50, 21 August 2024