SAE J2087:2017 pdf free
SAE J2087:2017 pdf free.Daytime Running Light
The device under test shall be designed to conform to the light intensity distribution (candela) values shown in Figures 1 or 2, Photometric Requirements for Dedicated Lamp Providing DRLF, when tested in accordance with 5.1.
The device under test shall be designed to operate at 2.5 times light intensity distribution (candela) values of the base front turn signal, or shall be designed to conform to the light intensity distribution (candela) values as shown in Figure 3 when tested in accordance with 5.1.
A headlamp providing daytime running light function shall have:
a. In the case of low beam headlamps that are designed to conform to SAE J1383, the luminous intensity from the lamp shall be equal to or greater than 40%, but not more than 100% of its designed photometric intensity values when tested at 1.5D-2R in accordance with SAE J575 or
b. In the case of high beam headlamps that are designed to conform to SAE J1383, the luminous intensity shall be greater than 2000 cd, but less than 7000 cd at the H-V test point when tested in accordance with SAE J575.
If a DRL is located such that its lighted edge is within 100 mm of the optical center of a front turn signal lamp, or within 40mm of a lighted edge of the front turn signal lamp, it must be extinguished or its luminous intensity reduced to a maximum of 250 cd or less at the H-V axis of the DRL during the turn signal operation. The only exception is when the turn signal is already 2.5 times the required turn signal intensity level.
When a DRL is installed on a vehicle, the centroid of the lens area through which the daytime running light function is provided shall be unobstructed and visible from any point contained within the solid angle bounded by vertical planes 20° to the left and right of, and horizontal planes 10° above and below, the H-V axis of the lamp.SAE J2087 pdf free download.
