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Color Frame Sizes by Bill Williams
This is a quick reference table, listing color frame sizes for many common stage lighting fixtures. This information is intended to assist the lighting professional in calculating color media requirements for an 'unknown' fixture type.
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Essay by Invitation, NLB
How many people would be aghast were I to say that, since day one, the lighting industry has been improperly calculating the cost of electric illumination? And how many would be shocked to hear that the variance between a traditional cost-of-lighting ...
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Introduction to Lighting by GE
Simply put, light is a form of traveling energy. Light from the sun brings energy to the earth… energy that can be absorbed by plants for photosynthesis, by the oceans to evaporate water and cause rain, by photocells and solar panels to create electricity ..
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Lamp Data - General by Bill Williams
This document provides technical data for many common lamps, used in stage, studio and architectural lighting applications. Lamps include: R, PAR, Stage/Studio and low voltage lamps.
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Lamp Life (La vita č bella)"
Article in Lighting Futures by Lighting Research Center By John D. Bullough : It\'s not likely that Roberto Benigni will ever make any feature films extolling the virtues of long-life lamps and lighting systems. However, many in the lighting industry recently have been more than willing to discuss this aspect of lighting, and it appears that many more will do so in the future. A growing sophistication about the economics of lighting has emerged, and with it, so has an understanding that luminous efficacy, or lumens per watt, is not the only important variable in designing and maintaining cost-effective, quality lighting.
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LEDs : From Indicators to Illumination
Article in Lighting Futures, Lighting Research Center By Andrew Bierman : Nearly everyone is familiar with LEDs (light-emitting diodes) from their use as indicator lights and numeric displays on consumer electronic devices. The low light output of LEDs and a lack of color options have limited LED technology to these uses. Now, however, new LED materials and improved production processes have resulted in bright LEDs in colors throughout the visible spectrum with efficacies greater than incandescent lamps. These brighter, more efficacious, and colorful LEDs may move LED technology into a range of lighting applications. The energy-savings potential is enormous. By one estimate, replacing only the incandescent traffic signals in the United States alone with LED signals would save nearly 2.5 billion kilowatt hours annually
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Quality of Light - Color Rendering Index by GE Lighting
The color rendering of a light source describes that source's ability to accurately render the colors of perceived objects - people and things. As a general rule, the higher a light source's Color Rendering Index (CRI) number, the better the lamp will make ...
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The Quest for the Ideal Office Control System
Article in Lighting Futures, Lighting Research Center By Images of flickering fluorescent tubes humming loudly overhead have long been used by advertisers and Hollywood producers as symbols of inhospitable workplaces and uncaring management. The entertainment industry knows that these images imply that business owners are willing to subject workers to bad lighting in order to save money. Receptive audiences respond to these tales because they believe that bad lighting can cause migraines, eye strain, and fatigue.
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Uniformity of Illuminance by Lightlab
One of the basic premises upon which Australian Lighting Standards have been built is that the illuminance distribution over the working area, within the workplace, should be relatively uniform.
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