US 11,835,210 B1
Flashlight element
Todd Philip Meyrath, Henderson, NV (US)
Filed by Todd Philip Meyrath, Henderson, NV (US)
Filed on Sep. 19, 2020, as Appl. No. 17/026,219.
Claims priority of provisional application 62/902,404, filed on Sep. 19, 2019.
Int. Cl. F21V 29/70 (2015.01); F21V 23/00 (2015.01); F21L 4/02 (2006.01)
CPC F21V 29/70 (2015.01) [F21L 4/022 (2013.01); F21L 4/027 (2013.01); F21V 23/004 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A flashlight element, comprising:
a double-sided metal core printed circuit board having a first side and a second side;
at least one light emitting diode disposed on the first side;
a driver circuit disposed on at least one of said first and second sides and adapted to drive the light emitting diode;
a first battery contact disposed on at least one of said first and second sides;
a second battery contact disposed on the second side;
a light detector disposed on one of said first and second sides and adapted to detect at least a portion of the light emitted by the light emitting diode and to provide a light feedback signal;
a light control circuit disposed on at least one of said first and second sides, adapted to receive the light feedback signal and to control the driver circuit so as to maintain the light feedback signal at a predetermined value.