US 11,729,889 B2
Lighting apparatus having ultra-low mode
Daniel P. Butler, Wauwatosa, WI (US); Ryan A. Spiering, Milwaukee, WI (US); Zachary Self, Nashotah, WI (US); and Justina M. Rinzel, Pleasant Prairie, WI (US)
Assigned to MILWAUKEE ELECTRIC TOOL CORPORATION, Brookfield, WI (US)
Filed by MILWAUKEE ELECTRIC TOOL CORPORATION, Brookfield, WI (US)
Filed on Jan. 18, 2022, as Appl. No. 17/577,939.
Claims priority of provisional application 63/138,563, filed on Jan. 18, 2021.
Prior Publication US 2022/0232687 A1, Jul. 21, 2022
Int. Cl. H05B 47/17 (2020.01); H05B 47/165 (2020.01); F21L 4/00 (2006.01); F21Y 115/10 (2016.01)
CPC H05B 47/17 (2020.01) [F21L 4/005 (2013.01); H05B 47/165 (2020.01); F21Y 2115/10 (2016.08)] 11 Claims
OG exemplary drawing
 
1. A lighting apparatus comprising:
a light source operable to emit different levels of brightness; and
a user interface configured to be selectively actuated by a user to turn the light source off and on;
wherein when the light source is off and the user interface is actuated for a first amount of time within a first range, the light source turns on in a first mode in which the light source emits a first level of brightness, the first mode being one of a high mode, a medium mode, and a low mode,
wherein when the light source is on and the user interface is actuated for a second amount of time within a second range that is different than the first range, the light source cycles through the high mode, the medium mode, and the low mode,
wherein when the light source is on in each of the high mode, the medium mode, and the low mode and the user interface is actuated for a third amount of time within the first range, the light source turns off, and
wherein when the user interface is actuated for a fourth amount of time within a third range that is different from the first and second ranges, the light source turns on in an ultra-low mode in which the light source emits a second level of brightness.