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LED Lighting for the Stage
Presented by: Mike Riordan
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LED Stage Lighting. Why do we want it?
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First we have to know what Light is…
What is Light?
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First we have to know what Light is…
What is Light? Light is electromagnetic radiation within a certain portion of the electromagnetic spectrum. The word usually refers to visible light, which is visible to the human eye and is responsible for the sense of sight.
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Describing Light Color Color Temperature (Degrees Kelvin)
Color Rendering Index (CRI)
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Color 3 Ways to Say it RGB + CMY – HSI
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Color Temperature What is White Light?
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Color Rendering Index CRI is the most over looked aspect of quality of light.
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Does your brain Hurt yet?
Why do I need to know this. I teach Theatre not Physics!
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Types of Light Sources
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Types of Light Sources
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The Lighting Revolution
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LED / Solid State Lighting
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LED / Solid State Lighting
2 Main Types Constant Current Constant Voltage (The part that dies)
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LED / Solid State Lighting
Control of LED’s Switched Phase Dimming 0-10v DMX Proprietary ANSI E USITT DMX512-A Asynchronous Serial Digital Data Transmission Standard for Controlling Lighting Equipment and Accessories Theatre / Stage
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Advantages of LED/SSL Low energy consumption Long life - 50K+ Hrs
Low Heat Color mixing Fewer Lights Durability
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Disadvantages of LED/SSL
High upfront cost Power Control Data Control Color matching Drivers = weakest link Droop - higher current = lower efficacy Higher current = higher heat
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LED Stage Lighting
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LED Stage Lighting Using LEDs Effectively Intensity Color Direction
Movement
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LED Stage Lighting Intensity LEDs are very bright Painful to look into
Colors are Brighter Additive vs subtractive Boosting with tungsten-halogen source
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LED Stage Lighting Color RGB, RGBA, RGBW, RGBA+W, x7
Lime, yes Lime is the key to great whites and skintones RGBL, RGBACIL White: WW, CW, VW 3000K, 5600K, 2700K-6500K
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LED Stage Lighting Direction Front, Key & Fill, McCandless
Down, Back, Foot, Up, Boarder Cyc (Asymmetric), Grazing, Blinders Practical, Direct View, Accent, Trim Patterns – Gobos (Texture)
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LED Stage Lighting Movement But I don’t have Moving Lights!
Moving the actual beam of light is only one way What are other ways to create the feeling of Movement ?
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I WANT MY LEDs 3 Key Questions Power? – NO DIMMERS!!
Data Distribution? – DMX to the Fixtures Control?
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Power Switched Relay Modules Constant Power with Remote Relay
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Data I Getting DMX to the Fixtures Hardwire / Splitters Wireless
Network / Gateways
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Control I Multi-Parameter Fixtures Number of Address per Fixture
Fixture Personality Number of Universes
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Data & Control II or DMX Basics DMX 512 DMX over CAT5
512 Address / Universe sACN 32 Fixtures per run DMX over Ethernet Must be Daisy Chain 64 Universes or 64,768 Address 1640’ (500m) 120 Ohm Termination Gateways Specific cable ARTNet
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Network Design & Topology
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Control III Console PC Based How productions are run Features / Size
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LED House Lights H U G E upfront cost $$$$ Dimming range Flicker
Color?
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LED Walls Media Servers Pixel Mapping
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Media Servers
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What’s Next?
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Q & A
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