FRC Series 35mm Diameter Reflectors for CREE MC-E LEDs High efficiency Faceted designs provide homogeneous focused spot and spilled/direct light 34.5 mm diameter for MR-11 lamp applications 3 beams available The FRC MCE reflectors are specifically designed for the XLamp 4-chip MC-E LEDs and from Cree. A software-optimized aspheric profile combined with precision facets provides a homogeneous central spot as well as useful peripheral spilled light. The high collection efficiency exceeds 90% of the total flux emitted by the LEDs. Typical applications are: * Flashlights/Torches * General Illumination * Reading Lamps * Architectural Lighting Cree(R) XLamp is a trademark of Cree, Inc. For technical information about these LEDs please refer to the Cree(R) XLamp datasheet or visit: http://www.cree.com/products/xlamp_mce.asp FRAEN CORPORATION FRAEN S.r.l. 80 Newcrossing Road Reading, MA 01867 Phone: 781.205.5300 Fax: 781.942.2426 Via Stelvio, 12 20019 Settimo M. (MI) - Italy Phone: +39-02-35.456.1 Fax: +39-02-335.456.239 optics@fraen.com info@fraen.com Website: www.fraensrl.com For ordering information, please contact: NAFTA Countries European Countries ARROW Telephone: 1-888-9LIGHT1 email: lightingsolutions@arrow.com Please contact Fraen S.r.l. for distributor's information Email: info@fraen.com _______________________________________________________________________ 1/6 FRC series reflectors for Cree MC-E LEDs General Characteristics ________________________________________________________________ Reflector Material: Operating Temperature range: Storage Temperature range: Polycarbonate, black color, with aluminum reflective coating. -40deg C / + 100 deg C -40deg C / + 100 deg C Please note that small defects in the reflective coating, and flow lines and weld lines on the surfaces of the reflectors are acceptable if the optical performance of the reflector is within the specification described in the section "OPTICAL CHARACTERISTS". IMPORTANT NOTE - Reflector handling and cleaning: * Handling: Always handle the reflectors by the outside surfaces or flange. Never touch the inside surfaces of the reflector with fingers; finger oils and contamination will absorb or refract light. * Cleaning: Clean reflectors only if necessary. Use only soap and water to clean the surfaces and reflectors. CAUTION - Never expose the reflectors to alcohol or solvents, as they could damage the plastic. Scope ________________________________________________________________ This datasheet provides information about the following FRC series reflectors: * FRC-N1-MCE-0R narrow beam reflector * FRC-M1-MCE-0R medium beam reflector, with textured facets * FRC-M2-MCE-0R medium beam reflector, with polished facets Part Identification ________________________________________________________________ P/N: FRC-N1-MCE-0R Small polished facets P/N: FRC-M2-MCE-0R Large polished facets P/N: FRC-M1-MCE-0R Large textured facets Figure 1. Visual appearance of reflectors, for differentiating between part numbers. _______________________________________________________________________ 2/6 FRC series reflectors for Cree MC-E LEDs Optical Characteristics: Beam Divergence and On-axis Efficiency ____________________________________________________________________ Central Spot On-axis intensity Beam Angle (candela/lumen) (degrees) Narrow Beam (P/N: FRC-N1-MCE-0R) Medium Beam, Textured Facets (P/N: FRC-M1-MCE-0R) Medium Beam, Polished Facets (P/N: FRC-M2-MCE-0R) Spilled Light / Halo ~ Intensity Beam Angle (candela/lumen) (degrees) 14 10 0.35 90 1.8 30 0.35 90 2.3 29 0.35 90 * The "Beam Angle" for the central spot is measured at the full-width at half-maximum (FWHM); the "Beam Angle" for the spilled light is measured at the Full Beam at 5% of center spot maximum (FWHM). Spilled light intensity is typical, as measured at ~30 half-angle location. ** Preliminary data and subject to change; MC-E results may be better due to smaller LED chip size. Table 1. Beam angles and intensity values. Beam photographs and beam profiles ____________________________________________________________________ Narrow Beam (P/N: FRC-N1-MCE-0R) Medium Beam, Textured Facets (P/N: FRC-M1-MCE-0R) Medium Beam, Polished Facets (P/N: FRC-M2-MCE-0R) Figure 2. Beam photographs See next page for beam profiles. _______________________________________________________________________ 3/6 FRC series reflectors for Cree MC-E LEDs 16 14 candela/lumen 12 10 Narrow "N1" Medium "M2" (polished) 8 Medium "M1" (textured) 6 4 2 0 -45 -35 -25 -15 -5 5 15 25 35 45 beam angle, degrees Figure 3. Beam profiles (reference) Illumination Calculations _______________________________________________________________________ To calculate peak candela: Find the central spot "on-axis intensity" value in Table 1, then multiply this value by the lumens output from your LED (refer to the MC-E LED datasheet http://www.cree.com/products/pdf/XLampMC-E.pdf for nominal lumens values). Or for a more accurate value, refer to Cree's .pdf specification for intensity binning. Example calculation: If the Fraen narrow reflector FRC-N1-MCE-0R is used on a cool white MC-E LED at 350 mA, the typical luminous flux of the "Group M" LED is 430 lumens: The calculation is: (14 candela/lumen) x (430 lumens) = 6020 candela peak on-axis. The beam angle specified in Table 1 above is 10 degrees full beam-width measured at half-peak. This means at 5 degrees off-axis (half of 10 degrees), the intensity should be half of 6020 candela, or 3010 candelas. 1 candela at 1-meter distance produces 1 Lux. This means the peak intensity at 1 meter will be 6020 lux. The intensity decreases as a function of the distance squared, so at 2 meters the peak intensity will be 6020 / (22) = 1505 lux. At 3 meters distance, the peak intensity will be 6020 / (32) = 670 lux. _______________________________________________________________________ 4/6 FRC series reflectors for Cree MC-E LEDs Tolerances: +/- 0.2 mm Figure 4. Front, side, rear and isometric views, with main dimensions. CAUTION: If attaching the reflector to the PCB, do not use instant glue (containing cyanoacrylates). Always test the glue on a sample assembly and check the results and performance 24 hours later. Some adhesives produce fumes that will damage the surfaces of the plastic reflector, or coating, or LED. Figure 5. The reflector touches the PCB, and is self-centered on the LED, by 8 small crush-ribs inside the rectangular hole thru the reflector. _______________________________________________________________________ 5/6 FRC series reflectors for Cree MC-E LEDs Ordering part numbers ________________________________________________________________ FRC-__-MCE-0R 0 (number zero), not letter O * * * FRC-N1-MCE-0R narrow beam reflector FRC-M1-MCE-0R medium beam reflector, with textured facets FRC-M2-MCE-0R medium beam reflector, with polished facets Published by Fraen Corporation. All data contained in this document is the property of Fraen Corporation and may change without notice. Rev 03 02 01 Date 17-November-09 03-September-09 18-September-08 Author C. Jones C. Jones C. Jones Description Part numbering change: M1 was polished, M2 was textured. Added 5 pages. Data re-measured. "-M2" version added. Initial Release _______________________________________________________________________ 6/6 FRC series reflectors for Cree MC-E LEDs