header image
Home arrow Sustainability Blog arrow Newsflash arrow Appropriate Technology Investments?
Appropriate Technology Investments? PDF Print E-mail
Written by Steve Heising   
Aug 09, 2004 at 08:30 AM
Appropriate Technology for a Power Hungry World.

Looking for information on Green Investments?

Consider investing in Energy Efficiency especially for lighting. Select higher efficiency glass (Alpen heat mirror)for skylights and windows, and select energy effective fluorescent ballasts and fixture, led exit signs and photoluminescent products for artificial daylight. These projects typically have quick paybacks and produce returns on investment that beat the street with substantially less risk. Energy efficient natural lighting, Day Lighting and "Simulated" Day Lighting products have particularly high returns on investment.

Best of all, it's something each and every one of us can do to fight back the rising costs of energy.

Visit Mambo's official online help center or join the discussions at the Mambo Forums
Last Updated ( May 04, 2006 at 03:14 PM )
<Previous   Next>
Back

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.

READ MORE>