40MM COLOR MIXER LENS

Features
• High optical efficiency
• Uniform light pattern
• Good color mixing
• High light intensity
• Narrow Beam
• Long projection distance


  • Applications
    • Illumination for tall buildings
    • Illumination for suspension bridge

    Light Source
    (Please refer to the appendix below for more information)
    • CREE RGBW MC-E

    Dimensions
    • Ø 41 mm x H27 mm

    Material
    • Optical grade PMMA

  • Optical Performance (Theoretical)
    • Beam angle FWHM approximately 8 Deg
    • Micro-Lens array design for light mixing
    • Optical efficiency >90%

  • Appendix (1)
    LED light source choices

    1.1 RGBW 4-in-1 full color CREE MCE LED


    The light source of the original design: CREE MCE


    Color mixing effect

    FWHM:7.8°

    The circle intersecting the center of the 4 chips

    1.2 RGB 3-in-1 CREE XPE2 LED


    CREE XPE2 LED

    Three ways of chips alignment. On the left, radius of circle intersecting the center of the three chips is the smallest, so the equivalent illuminant surface is the smallest, the color-mixing effect is the best. The analysis below is based on this chip alignment.

    The color mixing effect of a stand-alone lens is not as CREE MCE 4-in-1LED
    Color mixing effect improvement methods (1):

    Use a deeper Lens Array on the lens surface
    Use multiply lenses and a circular array of LEDs on PCB.
    Color mixing effect improvement method(2) :

    By using multiple lenses, with a circular array of LEDs on PCB, result in a very good color mixing effect.

    1.3 Light source with the best color mixing effect:High efficiency RGBW, 4-in-1 full color CREE XML LED


    4-in-1 Full Color CREE XML LED

    Radius of circle intersecting the center of the three chips is the smallest

    FWHM:7.2°

    The best color mixing effect