John Koshel has kindly put together an application note describing how to calculate and plot luminance in FRED. Please see the General File Comment for a description of how and where to download the LED rayfile [also provided below].
For Red Source 5M: you must download the source file separately:
- Go to http://www.philipslumileds.com/products ... ebel-color,
- find the Red Rebel 5M under the Optical button
- Agree to terms, download
- Under Positions/Directions, find the file
- Hit OK
