RedBird LED and Brisbane Materials Technology demonstrate high-bay light fixture with over 195 lm/W enabled by antireflective coating technology

May 3, 2016
ATLANTA -- RedBird LED and Brisbane Materials Technology (BMT) have collaborated to demonstrate one of the highest efficiency luminaires ever introduced. The RedBird LED Cardinal® products have consistently been on the leading edge of luminous efficiency as ranked by the DesignLights Consortium.™ RedBird LED now continues that great tradition with the release of their Next Generation Cardinal® High Bay series with luminous efficiencies greater than 190 Lumens Per Watt (LPW), assisted by Brisbane Materials Technology's XeroCoat® Antireflective Coating (ARC) technology.

XeroCoat® ARC is a low cost, high performance coating that reduces Fresnel reflections that arise due to the refractive index mismatch between the protective plastic lens cover and air. The antireflective coating is a quarter wavelength porous silica layer applied by spray coating to both sides of a luminaire's cover lens. By reducing these reflective losses, the XeroCoat® ARC provides a significant increase in light transmission and improves lumen output. For example, the application of the ARC onto the Cardinal® High Bay provided an increase of lumen output from 45,500 lumens to 48,300 lumens, and luminaire efficiency increase from 188 LPW to 199 LPW. The color rendering index (CRI) of the luminaire with the Xerocoat® ARC also increased from 82.3 to 84.

"The benefits of the XeroCoat® antireflective coating are clearly demonstrated in these results," stated RedBird LED CEO Jonathan Eppstein. "Our Cardinal® High Bay series can jump ahead significantly on the LED luminous efficiency curve simply by employing Brisbane Materials' ARC. This advancement in luminaire efficiency will allow RedBird to provide our customers with some of the most competitive and efficient commercial lighting on the market. The only other way to achieve this level of system through-put with today's components would be to build our fixtures with no protective lens at all over the LEDs, a design option we do not feel is appropriate for a quality High Bay luminaire."

"We are pleased to work with RedBird LED to demonstrate the effectiveness of our anti-reflective coatings," commented Brisbane Materials' CEO Gary Wiseman. "Our XeroCoat® ARC provides our customers with an easy and cost-effective way to improve the performance of their products."

BMT's XeroCoat® ARC is extremely durable and has a wide-range of applications in commercial, outdoor and directional lighting. The room-temperature spray deposition process allows for coating over a wide range of optical components and materials including most types of LED lenses and luminaire covers.

About Brisbane Materials Technology:
Brisbane Materials Technology is a specialty materials company focusing on creating innovative materials solutions in lighting, solar power and other applications. Based in Brisbane, Australia, and Silicon Valley, we have patented technologies for creating high performance optical coatings, including low-cost, wide-area anti-reflective coatings (ARCs) of porous silica and other materials, made at room temperature and atmospheric pressure. Brisbane Materials patented technology creates a high-performance, inorganic layer from a liquid precursor at room temperature. The coating is chemically bonded to the glass or plastic surface for optimum durability and lifetime. Brisbane Materials ARCs are the highest performing and most cost effective solutions available today for the lighting and solar markets.

About RedBird LED:
RedBird LED was founded in 2006 as an engineering company, RedBird Technologies, Inc. doing custom electro-optical design and machine vision projects for commercial clients. The founder, Jonathan Eppstein, has advanced degrees in both electrical engineering and applied mathematics. He is also the inventor on more than 220 issued and pending US and international patents covering inventions related to LED Lighting technology, design and manufacturing processes, LED/Laser Distance Measurement, Non-Invasive Optical Measurement of Analytes in Humans, Transdermal Drug Delivery, LED Retrofit Systems, Thermal Management of LEDs in a Compact Fixture and High Efficiency Optical Systems for LED Fixtures.

This press release contains forward-looking statements involving risks and uncertainties, both known and unknown, that may cause actual results to differ materially from those indicated. Actual results may differ materially due to a number of factors, including the risk that actual performance will vary from expectations; the risk we may be unable to manufacture these new products with sufficiently low cost to offer them at competitive prices or with acceptable margins; the risk we may encounter delays or other difficulties in ramping up production of our new products; customer acceptance of our new products; the rapid development of new technology and competing products that may impair demand or render the products obsolete. For additional information about RedBird LED products visit


Ron Miller, VP Sales - Brisbane Materials: