LED Backlight

Our customer needed help to optimise a new design for an edge lit LED backlight. We helped them by developing an optical model of their system allowing optimisation of the design parameters to get the output they required.

  • Development of an optical model of an edge lit LED back-light
  • Modelling done using TracePro non-sequential ray-tracing software
  • Output of back-light measured using:
    • Irradiance maps (forward ray-tracing)
    • Luminance maps (reverse ray-tracing) – model has good agreement with measurement
  • Design of scatter pattern optimised to produce uniform output with high efficiency
LED Backlight