carbon arc lamp sentence in Hindi
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- Although Bell Telephone researchers made several modest incremental improvements on Bell and Tainter's design, Siemens & Halske Company boosted the photophone's range by utilizing current-modulated carbon arc lamps which provided a useful range of approximately.
- Efficient dynamo's were introduced in the 1870s and began being used to power electric carbon arc lamps after 1879 . In 1880 Thomas Edison patented his invention of a long lasting incandescent light bulb and a system for distributing electrical power.
- The core operating principle is much the same as the carbon arc lamp, but the term'arc lamp'is normally used to refer to carbon arc lamps, with more modern types of gas discharge lamp normally called discharge lamps.
- The core operating principle is much the same as the carbon arc lamp, but the term'arc lamp'is normally used to refer to carbon arc lamps, with more modern types of gas discharge lamp normally called discharge lamps.
- With this remodel, the screen was replaced with a state-of-the-art super-wide CinemaScope 20'x 45'format and the theater's projectors were upgraded with 6000-watt carbon arc lamps and anamorphic lenses.
- It continued in use in more specialized applications where a high intensity point light source was needed, such as searchlights and movie projectors until after World War II . The carbon arc lamp is now obsolete for all of these purposes and is only still made for very specialized purposes where a high intensity UV source is needed.
- A "'searchlight "'( or "'spotlight "') is an apparatus that combines an extremely luminous 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, usually constructed so that it can be swiveled about.
- Even in these applications conventional carbon arc lamps are being pushed into obsolescence by xenon arc lamps, but were still being manufactured as spotlights at least as late as 1982 and are still manufactured for at least one purpose & ndash; simulating sunlight in " accelerated aging " machines intended to estimate how fast a material is likely to be degraded by environmental exposure.
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