• Thumbnail for Diaphragm (optics)
    In optics, a diaphragm is a thin opaque structure with an opening (aperture) at its center. The role of the diaphragm is to stop the passage of light,...
    11 KB (1,330 words) - 12:19, 8 September 2024
  • abdomen Pelvic diaphragm or pelvic floor, a pelvic structure Urogenital diaphragm or triangular ligament, a pelvic structure Diaphragm (optics), a stop in...
    1 KB (198 words) - 13:53, 7 November 2022
  • Cooke triplet Corner reflector Crystal optics Dark state Densitometry Depolarizer (optics) Diaphragm (optics) Dichroism Dichroic filter Dichroic prism...
    11 KB (898 words) - 23:45, 21 July 2024
  • Thumbnail for Aperture
    Aperture (redirect from Aperture (optics))
    place in. Numerical aperture Antenna aperture Angular resolution Diaphragm (optics) Waterhouse stop Bokeh Shallow focus Deep focus Entrance pupil Exit...
    40 KB (5,147 words) - 20:29, 2 September 2024
  • Thumbnail for Condenser (optics)
    is a modified Abbe condenser that replaces the iris diaphragm, filter holder, lamp and lamp optics with a small OLED or LCD digital display unit. The display...
    11 KB (1,498 words) - 03:28, 7 September 2024
  • In Gaussian optics, the cardinal points consist of three pairs of points located on the optical axis of a rotationally symmetric, focal, optical system...
    22 KB (2,900 words) - 02:56, 11 September 2024
  • Thumbnail for Ernst Abbe
    Abbe–Porro prism Aberration in optical systems Crown glass (optics) Dermatoscopy Diaphragm (optics) Calculation of glass properties Optical aberration Optical...
    41 KB (3,391 words) - 03:49, 12 September 2024
  • Thumbnail for Exit pupil
    Exit pupil (category Optics)
    image sensor at normal incidence.[citation needed] Transmittance Diaphragm (optics) Pupil magnification Hecht (1987), p. 152. "Aging Eyes and Pupil Size"...
    10 KB (1,169 words) - 08:18, 3 October 2024
  • Thumbnail for Helios (lens brand)
    camera, starting in 1958. The lens had a unique bayonet mount optics, "jumping" diaphragm and 13 aperture blades. The aperture control ring was placed...
    10 KB (1,156 words) - 12:53, 8 November 2024
  • Thumbnail for Optical aberration
    In optics, aberration is a property of optical systems, such as lenses, that causes light to be spread out over some region of space rather than focused...
    58 KB (8,720 words) - 01:47, 17 September 2024
  • Köhler illumination (category Nonimaging optics)
    components to function: Collector lens and/or field lens Field diaphragm Condenser diaphragm Condenser lens These components lie in this order between the...
    9 KB (1,182 words) - 21:27, 6 October 2024
  • Thumbnail for Apodization
    electrical signal, an optical transmission, or a mechanical structure. In optics, it is primarily used to remove Airy disks caused by diffraction around...
    9 KB (1,077 words) - 23:46, 21 July 2024
  • Thumbnail for Entocentric lens
    type of photographic lens. The aperture diaphragm is located between the objective and the image-side focus (optics). It corresponds to the "normal" human...
    974 bytes (87 words) - 20:17, 28 July 2024
  • Thumbnail for Microphone
    a magnetic field; the condenser microphone, which uses the vibrating diaphragm as a capacitor plate; and the contact microphone, which uses a crystal...
    82 KB (9,971 words) - 19:31, 18 November 2024
  • Thumbnail for Désiré van Monckhoven
    reprinted by Arno Press, New York. ISBN 978-0-405-09624-2 OCLC 4642259 Diaphragm (optics) Ghent University History of the camera Royal Photographic Society...
    5 KB (452 words) - 01:52, 17 November 2024
  • Thumbnail for F-number
    diameter would be equal to f/2. Camera lenses often include an adjustable diaphragm, which changes the size of the aperture stop and thus the entrance pupil...
    43 KB (5,438 words) - 15:01, 3 November 2024
  • Thumbnail for Loudspeaker
    corresponding sound. The driver can be viewed as a linear motor attached to a diaphragm which couples that motor's movement to motion of air, that is, sound....
    91 KB (12,674 words) - 13:11, 19 November 2024
  • Thumbnail for Entrance pupil
    physical aperture stop) is used to calibrate the opening and closing of the diaphragm aperture. The f-number ("relative aperture"), N, is defined by N = f /...
    7 KB (756 words) - 06:18, 21 July 2024
  • Thumbnail for Carl Zeiss AG
    Jena. Carl Zeiss is one of the oldest existing optics manufacturers in the world. Carl Zeiss opened an optics workshop in Jena in 1846. By 1847 he was making...
    66 KB (7,589 words) - 15:21, 18 September 2024
  • Thumbnail for Diffraction spike
    circle, on a diaphragm with an even number of blades, the diffraction spikes from blades on opposite sides overlap. Consequently, a diaphragm with n  blades...
    12 KB (1,191 words) - 14:23, 21 November 2024
  • Thumbnail for Coddington magnifier
    glass consisting of a single very thick lens with a central deep groove diaphragm at the equator, thus limiting the rays to those close to the axis, which...
    2 KB (228 words) - 23:13, 24 July 2022
  • Thumbnail for Double-slit experiment
    detectors which register outcoming photons are placed immediately behind the diaphragm with two slits: A photon is registered in one detector, not in both.....
    78 KB (8,665 words) - 09:56, 18 November 2024
  • Thumbnail for Etendue
    and solid angle, which must then be summed over both the source and the diaphragm as shown below. Etendue may be considered to be a volume in phase space...
    22 KB (3,216 words) - 11:09, 21 August 2024
  • Thumbnail for Lensbaby
    Lensbaby (section Optics)
    the optics, focusing mechanism, and mechanical lens mounts in a single, integrated unit. Many of these also are equipped with a manual iris diaphragm. Lensbaby...
    70 KB (5,493 words) - 00:45, 25 October 2024
  • silicone oil from touching the cornea and causing corneal dystrophy, a diaphragm made of polymethylacrylate (PMMA) is installed to seal the area around...
    13 KB (1,482 words) - 19:58, 29 June 2024
  • to a 1–2 meter long beam path, allowed the use of a conventional iris diaphragm as a ‘pinhole’, with diameters ~1 mm. First micrographs were taken with...
    46 KB (5,308 words) - 02:06, 5 November 2024
  • Thumbnail for Sodium chloride
    2 NaOH}}} This electrolysis is conducted in either a mercury cell, a diaphragm cell, or a membrane cell. Each of those uses a different method to separate...
    32 KB (3,460 words) - 22:33, 12 November 2024
  • Thumbnail for Voigtländer
    pronunciation: [ˈfoːktlɛndɐ]) was a significant long-established company within the optics and photographic industry, headquartered in Braunschweig, Germany, and today...
    24 KB (2,211 words) - 16:49, 3 September 2024
  • Thumbnail for Shock tube
    explosion (blast-driven) or by the buildup of high pressures which cause diaphragm(s) to burst and a shock wave to propagate down the shock tube (compressed-gas...
    16 KB (2,138 words) - 01:13, 22 January 2024
  • Thumbnail for Soft focus
    undercorrected for spherical aberration when the diaphragm is fully open. A conventional iris diaphragm is closed to minimize spherical aberration. Typically...
    38 KB (3,398 words) - 23:29, 20 September 2024