US 12,130,541 B2
Flash LED modules
Jongsup Song, Hwaseong-si (KR); and Taehyun Lee, Seoul (KR)
Assigned to Samsung Electronics Co., Ltd., (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Dec. 23, 2021, as Appl. No. 17/560,457.
Claims priority of application No. 10-2021-0015824 (KR), filed on Feb. 4, 2021.
Prior Publication US 2022/0244620 A1, Aug. 4, 2022
Int. Cl. G03B 15/05 (2021.01)
CPC G03B 15/05 (2013.01) 20 Claims
OG exemplary drawing
 
1. A flash light emitting diode (LED) module, comprising:
a first substrate comprising first and second opposing surfaces;
an LED device on the first surface of the first substrate, and comprising a light emitting region;
a shutter on the LED device, and configured to expose and cover the light emitting region;
a second substrate on the second surface of the first substrate, the first substrate overlapping the second substrate in a vertical direction that is substantially perpendicular to the first surface of the first substrate; and
a shutter driving unit on the second substrate and configured to move the shutter,
wherein the shutter driving unit comprises:
a magnetic field forming unit configured to generate a magnetic field in response to application of a current;
a power generation unit comprising a permanent magnet and configured to generate power in response to the magnetic field; and
a power transmission unit connected between the shutter and the power generation unit in the vertical direction and configured to transmit the power from the power generation unit to move the shutter, and
wherein at least one of the magnetic field forming unit or the power generation unit is on a side of the LED device opposite the shutter.