141:
122:
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256:. The basic idea is that on every wavefront exists a forward propagating spherical wavelet of light. The initial wavefront manifests itself in the form of a straight line, as if the subject was seeing a wave coming in towards themselves in the water. Aspects of the spherical waves that divert sideways are cancelled with the sideways components of the wave points on each respect point on either side. Diffraction is the primary method that many simple laser projectors work. Light is projected out towards multiple points.
1647:
130:
25:
225:); other methods of creating images through the use of galvanometer scanners and X-Y control voltages can generate letters, shapes, and even complicated and intricate images. A planar or conical moving beam aimed through atmospheric smoke or fog can display a plane or cone of light known as a "laser tunnel" effect.
321:
Maximum
Permissible Exposure (MPE) is the maximum amount of visible laser radiation considered not to cause harm, for a given exposure time. In many European countries these exposure limits may also be a legal requirement. The MPE is 25.4W/m2 for a period of 250 milliseconds, which is equivalent to
264:
Uninterrupted stationary beams from one or more laser emitters are used to create aerial beam effects, which are turned on and off at varying intervals to create a sense of excitement. As the laser beam is not manipulated in any way, this could be considered the simplest form of a laser light show
216:
to which a control voltage is applied. The beam is deflected a certain amount which correlates to the amount of voltage applied to the galvanometer scanner. Two galvanometer scanners can enable X-Y control voltages to aim the beam to any point on a square. This is called vector scanning. This
277:
damage if aimed directly into the eye, or if someone were to stare directly into a stationary laser beam. Some high-power lasers used in entertainment applications can also cause burns or skin damage if enough energy is directed onto the human body and at a close enough range. In the
198:
without refocusing for the differences in distance, as is common with video projection. This inherently more focused beam is also extremely visible, and is often used as an effect. Sometimes the beams are "bounced" to different positions with mirrors to create laser sculptures.
290:
which requires licensure of some laser operators. Safety precautions used by laser lighting professionals include beamstops and procedures so that the beam is projected above the heads of the audience. It is possible, and in some countries commonplace, to do deliberate
193:
Laser light is useful in entertainment because the coherent nature of laser light allows a narrow beam to be produced, which allows the use of optical scanning to draw patterns or images on walls, ceilings or other surfaces including
389:
Tour which also featured the famous "Flying Saucer". This is now highly regulated in the U.S., to the point where almost no U.S. shows have laser beams that go into or close to the audience.
295:. In such a case, the show is supposed to be designed and analyzed to keep the beam moving, so that no harmful amount of laser energy is ever received by any individual audience member.
353:
Laser light shows fully emerged in the early 1970s and became a form of psychedelic entertainment, usually accompanied with a live musical performance on stage or pre-recorded music.
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and also the least dynamic. Although this method is not as commonly used today due to the availability of scanners, these shows were precursors to laser light shows.
525:
1011:
1304:
383:, which shows a staged portrait of the band members seated among the laser beams, and Electric Light Orchestra made use of lasers during their 1978
633:
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318:. In Europe the standard EN60825 is the reference concerning the conformity of the equipments of every laser-sources-production industries.
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623:, Australian Dictionary of Biography, National Centre of Biography, Australian National University. Retrieved 8 December 2019.
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Safety, United States Air
Mobility Command Chief of; Safety, United States Air Mobility Command Director of (1995).
404:
offered laser shows. One company managed over 400 laser shows at locations around the United States by August 2021.
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998:
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if too-bright light enters the cockpit. In the U.S., outdoor laser use is jointly regulated by the FDA and the
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One of the pioneers in the use of lasers in multimedia productions was the Polish-Australian artist
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were among the first high-profile rock acts to use lasers in their concert shows in the mid-1970s.
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light to entertain an audience. A laser light show may consist only of projected laser
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282:, the use of lasers in entertainment, like other laser products, is regulated by the
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684:"'Millions of diamonds in the sky': 1,000 laser beams will dazzle at drive-in show"
401:
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249:, essentially complicated gratings, the beam can be split into various patterns.
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Laser scanners reflect the laser beam on small mirrors which are mounted on
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LaserShow Safety training/information and resource guide provided by ILDA
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A less complicated way of spreading the laser beam is by means of
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286:(FDA) and additionally by some state regulatory agencies such as
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enables the laser lighting designer to create patterns such as
869:
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1mW over 7mm circular aperture (the size of the human pupil).
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845:
183:
175:
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579:
The
Mobility forum: the journal of the Air Mobility Command
473:
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led to his innovative 'Sound and Image' show at the 1968
1324:
495:"Movie of consumer-grade diffraction based laser display"
334:, whose explorations of their artistic possibilities at
716:
U.S. FDA - Center for
Devices and Radiological Health
620:
Ostoja-Kotkowski, Joseph
Stanislaw (Stan) (1922–1994)
377:
used laser shows on tours that supported their album
136:
in operation. Seen in South
Florida in February 2006.
1012:
Thick-film dielectric electroluminescent technology
49:. Unsourced material may be challenged and removed.
711:FDA - Laser Light Show Safety - Who's Responsible?
594:"Laser safety: 10 tips | Kvant Laser Systems"
1305:Comparison of CRT, LCD, plasma, and OLED displays
1663:
159:Multimedia Laser Show in Beach Club on board of
659:"Laser Light Show Safety - Who's Responsible?"
441:
252:Diffraction uses something referred to as the
125:A laser show is a live multimedia performance.
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636:. tpimagazine.com. 2010-02-01. Archived from
575:
959:Surface-conduction electron-emitter display
1347:
1333:
870:Active-Matrix Organic light-emitting diode
748:
734:
298:Lasers used outdoors can pose a risk of "
109:Learn how and when to remove this message
582:. Chief of Safety, Air Mobility Command.
273:Some lasers have the potential to cause
154:
139:
128:
120:
1608:Multiple-prism grating laser oscillator
414:International Laser Display Association
1664:
755:
681:
245:light into several rays, and by using
1328:
729:
149:Outside Lands Music and Arts Festival
1006:Ferroelectric liquid crystal display
552:"Brief History of Laser Light Shows"
47:adding citations to reliable sources
18:
1080:Light-emitting electrochemical cell
186:, or may accompany another form of
13:
1279:Large-screen television technology
611:
332:Joseph Stanislaus Ostoja-Kotkowski
190:, typically musical performances.
16:Kind of show made with laser light
14:
1698:
953:Organic light-emitting transistor
704:
1646:
1645:
1316:Comparison of display technology
221:(such as are often displayed on
151:in San Francisco, 13 August 2011
23:
947:Electroluminescent Quantum Dots
675:
651:
507:from the original on 2021-12-12
338:, California, and later at the
314:. For details, see the article
312:Federal Aviation Administration
259:
34:needs additional citations for
1517:Amplified spontaneous emission
1018:Laser-powered phosphor display
626:
586:
569:
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518:
487:
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340:Weapons Research Establishment
228:
1:
1284:Optimum HDTV viewing distance
1274:History of display technology
1162:Computer-generated holography
434:
864:Organic light-emitting diode
858:Light-emitting diode display
474:"GALAXY 3D LASER LIGHT SHOW"
284:Food and Drug Administration
7:
1573:Chirped pulse amplification
682:Powell, Lisa (2021-08-16).
407:
207:
202:
10:
1703:
1377:List of laser applications
1354:
1074:Vacuum fluorescent display
798:Electroluminescent display
344:Salisbury, South Australia
325:
316:Lasers and aviation safety
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921:Liquid crystal on silicon
825:
772:
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348:Adelaide Festival of Arts
268:
254:Huygens-Fresnel principle
1112:Fourteen-segment display
915:Digital Light Processing
371:Electric Light Orchestra
196:theatrical smoke and fog
58:"Laser lighting display"
1118:Sixteen-segment display
804:Rear-projection display
1682:Laser image generation
1367:List of laser articles
965:Field-emission display
880:Liquid-crystal display
634:"Strung Out On Lasers"
168:laser lighting display
163:
152:
137:
126:
1102:Eight-segment display
1096:Seven-segment display
664:. fda.gov. 1986-05-01
617:June Edwards (2018),
174:involves the use of
158:
143:
132:
124:
1542:Population inversion
1224:Display capabilities
1107:Nine-segment display
809:Plasma display panel
43:improve this article
1593:Laser beam profiler
1512:Active laser medium
1452:Free-electron laser
1372:List of laser types
1253:See-through display
1157:Holographic display
835:Quantum dot display
526:"Boundless Physics"
336:Stanford University
1295:Color Light Output
1289:High Dynamic Range
1091:Dot-matrix display
1086:Lightguide display
757:Display technology
532:. 14 November 2016
429:Liquid light shows
164:
153:
138:
134:Copper vapor laser
127:
1659:
1658:
1613:Optical amplifier
1462:Solid-state laser
1322:
1321:
1248:Always-on display
1039:Electromechanical
1027:
1026:
530:Boundless Physics
449:"Laser Sculpture"
402:drive-in theaters
398:COVID-19 pandemic
394:social distancing
293:audience scanning
219:Lissajous figures
119:
118:
111:
93:
1694:
1649:
1648:
1623:Optical isolator
1588:Injection seeder
1568:Beam homogenizer
1547:Ultrashort pulse
1537:Lasing threshold
1349:
1342:
1335:
1326:
1325:
1300:Flexible display
1262:Related articles
1142:Autostereoscopic
841:Electronic paper
787:Cathode-ray tube
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596:. Archived from
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375:Blue Ă–yster Cult
172:laser light show
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1532:Laser linewidth
1522:Continuous wave
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1391:Types of lasers
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1205:Slide projector
1195:Movie projector
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386:Out of the Blue
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300:flash blindness
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1618:Optical cavity
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1578:Gain-switching
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1413:Liquid-crystal
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1398:Chemical laser
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1382:Laser acronyms
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765:Video displays
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705:External links
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476:. Galaxy3d.org
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949:(ELQD/QD-LED)
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1677:Visual music
1603:Mode locking
1556:Laser optics
1214:
1210:Transparency
1183:Static media
1137:Stereoscopic
691:. Retrieved
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638:the original
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363:Led Zeppelin
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147:on stage at
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41:Please help
36:verification
33:
1633:Q-switching
1494:X-ray laser
1487:Ti-sapphire
1457:Laser diode
1435:Helium–neon
1174:Fog display
1147:Multiscopic
1064:Fiber-optic
976:Quantum dot
536:14 November
453:Cape Lasers
392:During the
241:splits the
235:diffraction
229:Diffraction
1666:Categories
1215:Laser beam
1169:Volumetric
1129:3D display
1069:Nixie tube
1049:Split-flap
934:generation
908:Blue Phase
828:generation
775:generation
693:2021-10-03
688:Dayton.com
668:2013-03-04
644:2013-03-04
604:2014-11-13
511:2013-04-11
480:2012-02-07
435:References
424:Laser harp
419:Ivan Dryer
359:Pink Floyd
69:newspapers
1687:Laser art
1598:M squared
1420:Gas laser
1403:Dye laser
1269:Scan line
1243:DisplayID
1200:Neon sign
1190:Monoscope
1032:Non-video
793:Jumbotron
247:holograms
161:AIDAPrima
1651:Category
1445:Nitrogen
1152:Hologram
1059:Eggcrate
1044:Flip-dot
990:display
971:Laser TV
942:microLED
872:(AMOLED)
826:Current
782:Eidophor
556:Laser FX
505:Archived
408:See also
380:Spectres
308:aircraft
208:Scanning
203:Function
1430:Excimer
1236:CEA-861
866:(OLED)
851:Gyricon
500:YouTube
400:, some
367:Genesis
355:The Who
326:History
239:grating
182:set to
83:scholar
1472:Nd:YAG
1467:Er:YAG
1408:Bubble
1356:Lasers
1120:(SISD)
1014:(TDEL)
1008:(FLCD)
955:(OLET)
923:(LCoS)
882:(LCD)
860:(LED)
837:(QLED)
811:(PDP)
369:, and
304:pilots
269:Safety
85:
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56:
1477:Raman
1291:(HDR)
1114:(FSD)
1098:(SSD)
1082:(LEC)
1076:(VFD)
1020:(LPD)
967:(FED)
961:(SED)
932:Next
917:(DLP)
846:E Ink
800:(ELD)
789:(CRT)
662:(PDF)
561:6 May
458:6 May
302:" to
184:music
180:beams
176:laser
90:JSTOR
76:books
1482:Ruby
1231:EDID
1053:Vane
999:TMOS
994:IMoD
988:MEMS
815:ALiS
773:Past
563:2015
538:2016
460:2015
237:. A
145:Muse
62:news
1440:Ion
903:LED
896:IPS
886:TFT
342:at
306:of
275:eye
170:or
45:by
1668::
891:TN
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