LED Lighting for the Stage Presented by: Mike Riordan

LED Stage Lighting. Why do we want it?

First we have to know what Light is… What is Light?

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.

Describing Light Color Color Temperature (Degrees Kelvin) Color Rendering Index (CRI)

Color 3 Ways to Say it RGB + CMY – HSI

Color Temperature What is White Light?

Color Rendering Index CRI is the most over looked aspect of quality of light.

Does your brain Hurt yet? Why do I need to know this. I teach Theatre not Physics!

Types of Light Sources

Types of Light Sources

The Lighting Revolution

LED / Solid State Lighting

LED / Solid State Lighting 2 Main Types Constant Current Constant Voltage (The part that dies)

LED / Solid State Lighting Control of LED’s Switched Phase Dimming 0-10v DMX Proprietary ANSI E1.11 - USITT DMX512-A     Asynchronous Serial Digital Data Transmission Standard for Controlling Lighting Equipment and Accessories Theatre / Stage

Advantages of LED/SSL Low energy consumption Long life - 50K+ Hrs Low Heat Color mixing Fewer Lights Durability

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

LED Stage Lighting

LED Stage Lighting Using LEDs Effectively Intensity Color Direction Movement

LED Stage Lighting Intensity LEDs are very bright Painful to look into Colors are Brighter Additive vs subtractive Boosting with tungsten-halogen source

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

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)

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 ?

I WANT MY LEDs 3 Key Questions Power? – NO DIMMERS!! Data Distribution? – DMX to the Fixtures Control?

Power Switched Relay Modules Constant Power with Remote Relay

Data I Getting DMX to the Fixtures Hardwire / Splitters Wireless Network / Gateways

Control I Multi-Parameter Fixtures Number of Address per Fixture Fixture Personality Number of Universes

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

Network Design & Topology

Control III Console PC Based How productions are run Features / Size

LED House Lights H U G E upfront cost $$$$ Dimming range Flicker Color?

LED Walls Media Servers Pixel Mapping

Media Servers

What’s Next?

Q & A