US 11,988,942 B2
Driver for an adaptive light source
Arjen Van Der Sijde, Eindhoven (NL); Nicola Bettina Pfeffer, Eindhoven (NL); and Yourii Martynov, Geldrop (NL)
Assigned to Lumileds LLC, San Jose, CA (US)
Filed by Lumileds LLC, San Jose, CA (US)
Filed on Feb. 24, 2021, as Appl. No. 17/184,240.
Application 17/184,240 is a continuation of application No. 16/071,777, granted, now 11,086,198, previously published as PCT/EP2017/050377, filed on Jan. 10, 2017.
Claims priority of provisional application 62/280,918, filed on Jan. 20, 2016.
Claims priority of application No. 16161053 (EP), filed on Mar. 18, 2016.
Prior Publication US 2021/0200064 A1, Jul. 1, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. G03B 15/03 (2021.01); H04N 23/56 (2023.01); H04N 23/74 (2023.01); H04N 25/531 (2023.01)
CPC G03B 15/03 (2013.01) [H04N 23/56 (2023.01); H04N 23/74 (2023.01); H04N 25/531 (2023.01); G03B 2215/0567 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An illumination system, comprising:
a light-emitting diode (LED) array including a plurality of LEDs arranged in a plurality of rows and a plurality of columns,
each LED of the LED array being located in unique combination of row and column,
each LED of the LED array being powerable via a corresponding first electrical terminal and a corresponding second electrical terminal, the first and second electrical terminals including an anode and a cathode,
each row of LEDs having the corresponding first electrical terminals being electrically connected to one another and to a corresponding row switch,
each column of LEDs having the corresponding second electrical terminals being electrically connected to one another and to a corresponding column switch; and
a driver electrically coupled to the row switches and the column switches,
each LED in the LED array being electrically powered only when the corresponding row switch is closed and the corresponding column switch is closed,
the driver configured to selectively open and close the row switches and the column switches to selectively power the LEDs in the LED array over a plurality of time periods,
at least two LEDs in the LED array being energized during each time period,
the plurality of time periods being grouped in a time sequence such that a sum of illumination generated by each LED during all time periods of the time sequence equals a pre-determined amount of light,
the driver further configured to repeat the selective energizing of the LEDs to correspond to capturing of an image of a scene illuminated by light from the LEDs of the LED array.