• Thumbnail for Candela
    The candela (symbol: cd) is the unit of luminous intensity in the International System of Units (SI). It measures luminous power per unit solid angle...
    17 KB (2,176 words) - 20:06, 28 October 2024
  • Thumbnail for Battlefield illumination
    Battlefield illumination is technology that improves visibility for military forces operating in difficult low-light conditions. The risks and dangers...
    10 KB (1,185 words) - 03:13, 19 August 2024
  • Thumbnail for Lighting
    Lighting or illumination is the deliberate use of light to achieve practical or aesthetic effects. Lighting includes the use of both artificial light sources...
    67 KB (7,974 words) - 13:59, 17 December 2024
  • Vienna: CIE - International Commission on Illumination. ISBN 978-3-902842-23-7. "Base unit definitions: Candela". The NIST Reference on Constants, Units...
    9 KB (1,014 words) - 15:51, 20 November 2024
  • Thumbnail for Candlepower
    specific size and constituents. The historical candlepower is equal to 0.981 candelas. In modern usage, candlepower is sometimes used as a synonym for candla...
    7 KB (781 words) - 19:58, 7 December 2024
  • Thumbnail for Ludwig Mies Van Der Rohe and Felix Candela's Industrial Buildings
    The Bacardi buildings of Ludwig Mies van der Rohe and Felix Candela are located in the Greater Mexico City, Mexico. This site was added to the UNESCO...
    4 KB (365 words) - 21:03, 27 November 2024
  • Thumbnail for Luminance
    measurement for the importance of this contrast). The SI unit for luminance is candela per square metre (cd/m2). A non-SI term for the same unit is the nit. The...
    11 KB (1,336 words) - 15:47, 4 December 2024
  • Thumbnail for Foot-candle
    inside surface of a one-foot-radius sphere with a point source of one candela at its center. Alternatively, it can be defined as the illuminance of one...
    5 KB (595 words) - 04:34, 12 December 2024
  • Thumbnail for Flare
    Flare (section Illumination)
    intense heat without an explosion. Flares are used for distress signaling, illumination, or defensive countermeasures in civilian and military applications....
    23 KB (2,322 words) - 01:06, 9 October 2024
  • Thumbnail for Illuminance
    Lighting Vocabulary, 2nd edition. CIE - International Commission on Illumination. 2020. Retrieved 20 April 2023. International Electrotechnical Commission...
    7 KB (702 words) - 20:52, 2 September 2024
  • Thumbnail for Lux
    light present, and the illuminance as a measure of the intensity of illumination on a surface. A given amount of light will illuminate a surface more...
    23 KB (2,505 words) - 17:48, 6 November 2024
  • Thumbnail for Light meter
    footcandles are the common units for visible light, but so are Candelas, Lumens, and Candela per square meter. In the realm of disinfection, UVC is typically...
    30 KB (3,974 words) - 19:06, 8 July 2024
  • Thumbnail for Candle
    Although electric light has largely made candle use nonessential for illumination, candles are still commonly used for functional, symbolic and aesthetic...
    44 KB (5,289 words) - 19:04, 4 November 2024
  • Thumbnail for Automotive lighting
    emit white light with an intensity of at least 400 candela on axis and no more than 1200 candela in any direction. In the US, daytime running lights...
    117 KB (13,245 words) - 03:43, 13 December 2024
  • Thumbnail for Metric system
    that 0 K is absolute zero, and the candela, which is roughly equivalent to the international candle unit of illumination – were introduced. Later, another...
    40 KB (4,724 words) - 16:36, 25 September 2024
  • Thumbnail for Luminous flux
    as the luminous flux of light produced by a light source that emits one candela of luminous intensity over a solid angle of one steradian. 1   lm = 1  ...
    8 KB (697 words) - 06:20, 13 May 2024
  • Thumbnail for Searchlight
    mirror, reflecting a carbon arc discharge. Peak output was 800,000,000 candela. It was powered by a 15 kW generator and had an effective beam visibility...
    13 KB (1,400 words) - 03:52, 15 December 2024
  • Thumbnail for 2019 revision of the SI
    and the Avogadro constant (NA), respectively. The second, metre, and candela had previously been redefined using physical constants. The four new definitions...
    76 KB (9,058 words) - 00:31, 5 December 2024
  • Thumbnail for Cathedral of Light
    150-centimeter-diameter parabolic glass reflectors with an output of 990 million candelas. The system was powered by a 24-kilowatt generator, based around a 51-horsepower...
    5 KB (660 words) - 14:48, 1 November 2024
  • Thumbnail for M6 mortar
    ILL-VIS Mk2, visible spectrum illumination bomb, 350.000 candela for 35 seconds ILL-IR Mk2, infrared spectrum illumination bomb, 35 seconds duration All...
    9 KB (998 words) - 17:36, 10 August 2024
  • Thumbnail for Flashlight
    square root of (the beam intensity in candelas divided by 0.25 lux); for example, a beam intensity of 1000 candelas produces a working range rating of the...
    44 KB (5,742 words) - 12:20, 11 December 2024
  • Thumbnail for History of the LED
    Retrieved 7 December 2015. Nakamura, S.; Mukai, T.; Senoh, M. (1994). "Candela-Class High-Brightness InGaN/AlGaN Double-Heterostructure Blue-Light-Emitting-Diodes"...
    48 KB (4,940 words) - 01:26, 21 December 2024
  • Thumbnail for Carl Gustaf 8.4 cm recoilless rifle
    burns for 30 seconds while producing 650,000 candela, providing a 400 to 500 m diameter area of illumination. FFV551 is the primary HEAT round and is a...
    83 KB (7,397 words) - 20:12, 18 December 2024
  • constants, including Kcd (used in the definition of candela) There are special cases of illumination involving wavelengths of light that are outside the...
    30 KB (2,271 words) - 15:31, 13 September 2024
  • Thumbnail for Leigh Light
    device used in the Battle of the Atlantic. It was a powerful (22 million candelas) carbon arc searchlight of 24 inches (610 mm) diameter fitted to a number...
    11 KB (1,398 words) - 20:14, 27 July 2024
  • 28, 2021. "2022 Illumination Awards". IES Illumination Awards. IES. Retrieved June 9, 2023. "2021 Illumination Awards". IES Illumination Awards. IES. Retrieved...
    33 KB (1,684 words) - 13:29, 20 October 2024
  • Thumbnail for Christmas lights
    Electric Co. of Harrison, New Jersey. Each socket accepted a miniature two-candela carbon-filament lamp. The first recorded uses of Christmas lights on outdoor...
    40 KB (4,575 words) - 23:14, 20 December 2024
  • Thumbnail for Skyglow
    light sources, including electrical (or rarely gas) lighting used for illumination and advertisement and from gas flares. Light propagating into the atmosphere...
    32 KB (3,295 words) - 20:40, 19 December 2024
  • first investors in Tory Burch. Other investments in the sector included Candela, Fashion Tech Forum, Jack Rogers, Soludos, and Bikyni. In 2015, he launched...
    10 KB (905 words) - 06:23, 19 November 2024
  • Thumbnail for Luminous efficiency function
    constant. The number 683 is connected to the modern (1979) definition of the candela, the unit of luminous intensity. This arbitrary number made the new definition...
    16 KB (1,569 words) - 00:54, 4 November 2024