Caption: Professor Ron Helms (right) in CU Boulder's photometric lab in 1967. Ron Helms, a former professor fondly known as ‘Doc’ by his CU Boulder architectural lighting students, passed away on May ...

The Illuminating Engineering Society of North America (IES) announces the publication of RP-22-11, "Tunnel Lighting," an ANSI-approved standard. The purpose of the document is to provide recommended ...

Those who work inside a factory know they need not only enough light to do their work, but light that illuminates their workspace properly. The standard for factory lighting was developed by two ...

As a decision maker responsible for making the right choices for your company’s bottom line, which optical design software should you choose? If the performance or cost of your illumination subsystem ...