SI
SI
discoversearch

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor.  We ask that you disable ad blocking while on Silicon Investor in the best interests of our community.  If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.
Technology Stocks : Intel Corporation (INTC) -- Ignore unavailable to you. Want to Upgrade?


To: nihil who wrote (100713)3/11/2000 7:50:00 PM
From: ptanner  Respond to of 186894
 
nihil - OT: Lighting

Thanks for the reference article. I studied a lot about energy efficiency in school but never saw references to the effectiveness of different lighting sources other than the energy input relative to measured lumens (not observed lumens).

PT



To: nihil who wrote (100713)3/11/2000 8:33:00 PM
From: Road Walker  Read Replies (1) | Respond to of 186894
 
nihil, OTOT

Sam Berman is one of the pioneers in the study of light and vision, and is one of a very few fighting an uphill battle against the lighting establishment. The commodity based lighting industry is concerned only with brightness per watt of electricity used, not with the visual acuity or visual comfort that result from the spectrum of the light. It's an issue that includes but goes beyond visual acuity per watt, the productivity issues from eyestrain and headaches is enormous.

There have also been some very interesting artificial light/health studies. The ones with animals are pretty solid, the human studies have had some fascinating results, but it's difficult to get an acceptable human control group with something as pervasive as light. So the results are subject to justified criticism.

I was surprised and pleased to see that you were aware of Mr. Berman and his work. I worked helping to build a company based on the commercial applications of quality light. It's a subject I never get tired of talking about.

John