Strobe light

China Product


History

The origin of strobe lighting dates to 1931, when Harold Eugene "Doc" Edgerton employed a flashing lamp to make an improved stroboscope for the study of moving objects, eventually resulting in dramatic photographs of objects such as bullets in flight.

EG&G [now a division of URS] was founded by Harold E. Edgerton, Kenneth J. Germeshausen and Herbert E. Grier in 1947 as Edgerton, Germeshausen and Grier, Inc. and today bears their initials. In 1931, Edgerton and Germeshausen had formed a partnership to study high-speed photographic and stroboscopic techniques and their applications. Grier joined them in 1934, and in 1947, EG&G was incorporated. During World War II, the government's Manhattan Project made use of Edgerton's discoveries to photograph atomic explosions; it was a natural evolution that the company would support the Atomic Energy Commission in its weapons research and development after the war. This work for the Commission provided the historic foundation to the Company's present-day technology base. fetal doppler

The strobe light was popularized on the club scene during the 1960s when it was used to reproduce and enhance the effects of LSD trips. Ken Kesey used strobe lighting in coordination with the music of the Grateful Dead during his legendary Acid Tests. heartbeat monitor

Strobe lights and epilepsy test glucose meter

Strobe lighting can trigger seizures in photosensitive epilepsy. An infamous event took place in Japan when an episode of a Pokmon anime, Denn Senshi Porygon, featured a scene that depicted a huge explosion using flashing red and blue lights, causing about 685 of the viewing children to be sent to hospitals. These flashes were extremely bright strobe lights. Most strobe lights on sale to the public are factory-limited to about 10-12 flashes per second in their internal oscillators, although externally triggered strobe lights will often flash as frequently as possible. At a frequency of 10 Hz, 65% of affected people are still at risk. The British Health and Safety Executive recommend that a net flash rate for a bank of strobe lights does not exceed 5 flashes per second, at which only 5% of photosensitive epileptics are at risk. It also recommends that no strobing effect continue for more than 30 seconds due to the potential for discomfort and disorientation.

See also

Look up strobe in Wiktionary, the free dictionary.

Electrotachyscope

Flip book

Phenakistoscope

Praxinoscope

Tachometer

Thaumatrope

Zoetrope

Jerkiness, discontinuity in motion pictures, also called strobing

Photographic flash, often referred to as a strobe light

Strobing (dance form)

References

^ Davies, D (1998). "Diver location devices". Journal of the South Pacific Underwater Medicine Society 28 (3). http://archive.rubicon-foundation.org/5968. Retrieved 2009-04-02. 

^ History of EG&G

^ "Pokemon on the Brain". Neuroscience For Kids. March 11, 2000. http://faculty.washington.edu/chudler/pokemon.html. Retrieved 2008-11-21. 

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