This SAE Standard provides a method for determining the Effective Projected Luminous Lens Area (EPLLA) of a lamp function using design analysis. This standard was created to clarify and address how to determine EPLLA with traditional and new technologies.
SAE J2999-2017 history
2017SAE J2999-2017 Determination of the Effective Projected Luminous Lens Area (EPLLA) by Design Analysis
2013SAE J2999-2013 Determination of the Effective Projected Luminous Lens Area (EPLLA) by Design Analysis