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  2. Searchlight - Wikipedia

    en.wikipedia.org/wiki/Searchlight

    ATS officers-in-training crew a 90 cm searchlight in Western Command, 1944. A searchlight (or spotlight) is an apparatus that combines an extremely bright source (traditionally a carbon arc lamp) with a mirrored parabolic reflector to project a powerful beam of light of approximately parallel rays in a particular direction.

  3. Stage lighting instrument - Wikipedia

    en.wikipedia.org/wiki/Stage_lighting_instrument

    The ellipsoidal reflector spotlight (ERS), also known as profile (after its ability to project the silhouette or profile of anything put in the gate) (UK) and Découpe (French), is the most abundant instrument type currently in theatrical use. The flexibility of the ERS allows it to fulfill the bulk of lighting roles in the theater.

  4. Vector Graphic - Wikipedia

    en.wikipedia.org/wiki/Vector_Graphic

    The Vector Graphic 3 had a fixed keyboard housed in a combined screen terminal and CPU case. The Vector Graphic 4 was a transitional 8-bit and 16-bit hybrid model. Although primarily used with the CP/M operating system, the Vector 3 ran several others including OASIS, Micropolis Disk Operating System (MDOS), and Micropolis Z80 Operating System ...

  5. Klieg light - Wikipedia

    en.wikipedia.org/wiki/Klieg_light

    Klieg lights. A Klieg light is an intense carbon arc lamp especially used in filmmaking.It is named after inventor John Kliegl and his brother Anton Kliegl.Klieg lights usually have a Fresnel lens with a spherical reflector or an ellipsoidal reflector with a lens train containing two plano-convex lenses or a single step lens.

  6. Arc lamp - Wikipedia

    en.wikipedia.org/wiki/Arc_lamp

    The Vortek water-wall plasma arc lamp, invented in 1975 by David Camm and Roy Nodwell at the University of British Columbia, Vancouver, Canada, made the Guinness Book of World Records in 1986 and 1993 as the most powerful continuously burning light source at over 300 kW or 1.2 million candle power.

  7. Computer graphics lighting - Wikipedia

    en.wikipedia.org/wiki/Computer_graphics_lighting

    Computer graphics lighting is the collection of techniques used to simulate light in computer graphics scenes. While lighting techniques offer flexibility in the level of detail and functionality available, they also operate at different levels of computational demand and complexity.

  8. Ellipsoidal reflector spotlight - Wikipedia

    en.wikipedia.org/.../Ellipsoidal_reflector_spotlight

    A Colortran ERS. An Ellipsoidal Reflector from a Leko Source Four ERS. Ellipsoidal reflector spot (abbreviated to ERS, or colloquially ellipsoidal or ellipse) is the name for a type of stage lighting instrument, named for the ellipsoidal reflector used to collect and direct the light through a barrel that contains a lens or lens train.

  9. Flashlight - Wikipedia

    en.wikipedia.org/wiki/Flashlight

    A set of modern LED flashlights. A flashlight or electric torch (Commonwealth English), usually shortened to torch, is a portable hand-held electric lamp.Formerly, the light source typically was a miniature incandescent light bulb, but these have been displaced by light-emitting diodes (LEDs) since the early 2000s.