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WP28 LEDs Optimized for Architectural and Emergency Vehicle Lighting Applications White Paper 20161202 ©2016 Lumileds Holding B.V. All rights reserved. White PaPer LeDs Optimized for architectural and emergency Vehicle Lighting applications The importance of a color LED with a small foot print, consistent focal height and low thermal resistivity in ensuring the most simplified design process for architectural and emergency vehicle lighting manufacturers. Introduction As a mainstay in architectural and emergency vehicle lighting, color LEDs bring about intrinsic advantages such as durability and reliability, in addition to the possibility of delivering controlled “color light performances.” In recent years, however, the evolving architectural and emergency vehicle lighting landscape has necessitated developing color LEDs that can enable the most effective and optimized system design. Architectural Lighting In architectural lighting, a few design characteristics are of great importance. As the focus should be on the architecture that is being illuminated, the lighting fixtures should be invisible, and so the luminaire in turn needs to be very small. To achieve a luminaire with as low of a profile as possible, the LEDs used should be able to work together with secondary optics to facilitate a small footprint system, allowing the highest flexibility with regards to where the luminaire can be mounted without being obtrusive to the observer. The smallest and most cost effective mounting options are also important. The size of the necessary secondary optics needed to achieve a desired light distribution is dependent on the beam shape and effective LED source size—namely, the virtual source size as it appears when the LED is encapsulated in its extraction optics.
distribution. LUXEON C (left) has 30% less variation in CCT over the field angle of the distribution than the competition (right). (right) exhibits a significant reddish aura compared to LUXEON C (left). Figure 1. Color blending of RGB to white with LUXEON C (left) and competition (right) for architectural applications. LUXEON C has 30% unwanted features like auras and halos within the beam, as shown in the true color renderings.
Rebel and a 16% improvement compared to competition. Figure 2. Light distributions of RGB LUXEON C, LUXEON Rebel, and Competitive LEDs using the same 8° secondary optic and LUXEON Rebel and 16% over competition. offered in a wide spectrum of colors, to facilitate optical and system design.
©2016 Lumileds Holding B.V. All rights reserved. LUXEON is a registered trademark of the Lumileds Holding B.V. in the United States and other countries. lumileds.com Neither Lumileds Holding B.V. nor its affiliates shall be liable for any kind of loss of data or any other damages, direct, indirect or consequential, resulting from the use of the provided information and data. Although Lumileds Holding B.V. and/or its affiliates have attempted to provide the most accurate information and data, the materials and services information and data are provided “as is,” and neither Lumileds Holding B.V. nor its affiliates warrants or guarantees the contents and correctness of the provided information and data. Lumileds Holding B.V. and its affiliates reserve the right to make changes without notice. You as user agree to this disclaimer and user agreement with the download or use of the provided materials, information and data. WP28 LEDs Optimized for Architectural and EV Lighting Applications White Paper 20161202 About Lumileds Lumileds is the global leader in light engine technology. The company develops, manufactures and distributes groundbreaking LEDs and automotive lighting products that shatter the status quo and help customers gain and maintain a competitive edge. With a rich history of industry “firsts,” Lumileds is uniquely positioned to deliver lighting advancements well into the future by maintaining an unwavering focus on quality, innovation and reliability. To learn more about our portfolio of light engines, visit lumileds.com.