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Changing a Light Bulb at BCH PDF Print E-mail
Written by Steve Heising   
Sep 05, 2007 at 11:17 PM
Boulder Community Hospital's Foothills Campus is the first LEED certified hospital in the nation. Kai Ablekis, Environmental Manager, takes us on a tour. This segment demonstrates several convenient answers related to changing a light bulb at the BCH hospital(s).  Change a light, change a hospital, change a town, change the world.  

Or see it on YouTube http://www.youtube.com/watch?v=fFW4l0XV5bE

The department of surgery manager Julie Moyle has a different take,  It is easier to see.  The docs, especially the facial plastic surgeons, like the light.   It is easier to see slight variations of color.   Julie remarks, "When the staff leave the areas lit with the spectrally enhanced Sunwave lamps, it is like getting instant cataracts."  She has also been looking into at staff sick days or other human resources benefits fewer headaches, fewer sick days etc.  fewer mistakes... While this is not a scientific study, there is some indication that the lighting may be having a beneficial effect. 

Not all the lighting in the LEED certified hospital has been changed to spectrally enhanced lighting, but some of the lighting in the other campuses has also been changed to Sunwave 5550K 93CRI, so it works at newly LEED certified hospitals and at existing facitilites in the areas where visual acquity and color discriminiation are critical.

For these applications, they are continuing to see the light so to speak, even though the lamps cost slightly more than the generics that they had been using.    This project involved small incremental investments, starting in a dimly lit storage room and now in basement and other offices without windows, in the ERs, ORs, sterile storage rooms, Mom and Well Baby Unit, the Pharmacys and the Nursing Stations are lit with Sunwave's T8 Plus, Low Wattage, Extra Long Life, Spectrally Enhanced "Full Spectrum" lighting. 

Read more of the story at Change Agents dot com.  http://www.changents.com/change-agents/sunwavelighting/story 

Or Try clicking the link below if you have Windows Media Viewer

http://blip.tv/file/get/SteveHeising-ChangingALightBulbAndBoulderCommunityHospital873.wmv
Last Updated ( Jul 08, 2009 at 11:22 AM )
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NIST Physics Laboratory Optical Technology Division
Color Rendering of Light Sources

 
Figure 1

A Color Quality Scale (CQS) is being developed at NIST with close contacts with the lighting industry and the CIE to address the problems of the CIE Color Rendering Index (CRI) for solid-state light sources and to meet the new needs in the lighting industry and consumers for communicating color quality of lighting products, The CQS evaluates several aspects of the quality of the color of objects illuminated by a light source. This metric involves several facets of color quality, including color rendering, chromatic discrimination, and observer preferences. The method for calculating the CQS is derived from modifications to the method used in the CRI. Though simulations support for the appropriateness and usefulness of the proposed metric, visual tests are being planned. The results of the vision experiments will be used to improve upon and eventually verify the CQS, which is to be proposed as a new international standard.

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