LED + SSL

2014 Nobel Prize in Physics winner Professor Amano Hiroshi, recently stated LED lamps will be a mainstream consumer light source by 2016, but challenges remain. Primarily, he points out, costs must come down further, starting with production costs, which should come down five times by 2020. For this to occur, demand must increase globally and [...]

The U.S. Department of Energy’s CALiPER program has released Report 20.3, which is part of a series of investigations on LED PAR38 lamps. Report 20.3 focuses on an evaluation of robustness. Three samples each of 40 of the Series 20 PAR38 lamps (including LED and benchmark conventional lamps) underwent multistress testing, whereby samples were subjected [...]

Republication of Postings from the U.S. Department of Energy (DOE) Solid-State Lighting Program by Jim Brodrick, SSL Program Manager, U.S. Department of Energy High-flux lighting applications in high-temperature environments present a formidable challenge for LEDs. The higher the luminous flux from a luminaire, the more difficult it can be to properly dissipate the heat, to [...]

This interesting presentation by Acuity Brands portrays OLED lighting as rapidly advancing in performance and poised for larger adoption. Check it out here.

The U.S. Department of Energy’s CALiPER program has released another special report on LED lamps that are available through the retail marketplace and targeted toward general consumers. CALiPER Retail Lamps Study 3.2 focuses on lumen depreciation and color shift in a subset of 15 LED A lamps from CALiPER Retail Lamps Study 3. The lamps [...]

Republication of Postings from the U.S. Department of Energy (DOE) Solid-State Lighting Program by Jim Brodrick, SSL Program Manager, U.S. Department of Energy Long lifetime ranks high on solid-state lighting’s list of potential advantages. But accurately predicting that lifetime is no easy matter, because — unlike most other lighting technologies — SSL has many different [...]

The U.S. Department of Energy (DOE) has released a new GATEWAY report that summarizes the results of a survey regarding conversions to solid-state lighting in museums. The survey was sent to members of the museum community who had requested a copy of “The Guidelines for Assessing Solid-State Lighting for Museums,” the pivotal resource co-authored by [...]

The Department of Energy has posted the presentations from its 2014 Detroit SSL Workshop. A lot of great presentations, particularly, “Specifying LED in a World of Continuous Change,” all available for free download here.

Republication of Postings from the U.S. Department of Energy (DOE) Solid-State Lighting Program by Jim Brodrick, SSL Program Manager, U.S. Department of Energy Greetings from Rochester, NY, where the OLED community — with some facilitating by DOE — is meeting to share updates on the efforts of a new OLED Coalition, explore basic science and [...]