SYSTEM AND METHOD FOR SENSOR-BASED DYNAMIC LIGHTING OUTPUT GENERATION AND MODIFICATION
A digitally controlled LED illuminator sheet that produces far-field illumination patterns or light field distributions that increase light utilization and application efficiency. A dynamic directional LEDs (or other kinds of solid-state light sources) sheet is positioned under each lenslet of a microlens array. Individual LED beam pointing direction depends on off-axis position relative to optical axis of lenslet. Individual beams from independent LEDs form illumination pixels at the illumination plane or within a volume space and can be modulated in intensity. Illumination pixels partially overlap in far-field illumination plane and illumination volume. Data from sensors can be collected and the LEDs can be digitally turned on or off and/or pulse width or amplitude modulated based on sensor data to produce far-field illumination patterns or light field distributions with spectral efficiency and efficacious intensity.
1 . A system for sensor-guided dynamic lighting output, comprising:
a microlens array comprises a plurality of lenslets;
an array of solid state light sources aligned with each of the lenslets;
one or more sensors configured to collect data;
a computer in control of each of the light sources and interfaced to the one or more sensors, the computer comprising at least one processor, the computer configured to:
obtain a desired illumination pattern comprising at least one of a desired far-field illumination pattern and a desired light field distribution;
identify based on at least some of the sensor data those of the light sources that need to be turned on to generate the desired illumination pattern; and
control the identified light sources to generate the desired illumination pattern.
2 . A system according to claim 1 , wherein the sensor data comprises data regarding objects in the way of the desired illumination pattern.
3 . A system according to claim 2 , wherein the sensors comprise one or more of motion sensors, light sensors, and occupancy sensors.
4 . A system according to claim 1 , wherein the microlens array, the solid state light sources, and one or more of the sensors are comprised in a light field illuminator sheet.
5 . A system according to claim 1 , wherein one or more sensors are wirelessly interfaced to the computer.
6 . A system according to claim 1 , the computer further configured to:
detect using at least some of the sensor data a disruption of the desired illumination pattern; and
adjust which of the lights sources are turned on based on the disruption and at least some of the sensor data.
7 . A system according to claim 1 , the computer further configured to:
modulate an intensity of a light generated by the identified light sources based on at least some of the sensor data.
8 . A system according to claim 7 , wherein the sensors comprise one or more of a temperature sensor, a light level sensor, and a moisture level sensor.
9 . A system for sensor-based dynamic lighting output generation and modification, comprising:
a microlens array comprises a plurality of lenslets;
an array of solid state light sources aligned with each of the lenslets;
one or more sensors configured to collect data;
a computer in control of each of the light sources and interfaced to the one or more sensors, the computer comprising at least one processor, the computer configured to:
obtain a desired illumination pattern comprising at least one of a desired far-field illumination pattern and a desired light field distribution;
identify those of the light sources that need to be turned on to generate the desired illumination pattern;
command the identified light sources to turn on to generate the desired illumination pattern;
detect using at least some of the sensor data that an illumination pattern generated by the commanded light sources differs from the desired illumination pattern; and
adjust which of the lights sources are turned on based on the detection and at least some of the sensor data.
10 . A system according to claim 9 , wherein the sensor data comprises data regarding objects in the way of the desired illumination pattern.
11 . A system according to claim 10 , wherein the sensors comprise one or more of motion sensors, light sensors, and occupancy sensors.
12 . A system according to claim 11 , wherein the microlens array, the solid state light sources, and one or more of the sensors are comprised in a light field illuminator sheet.
13 . A system according to claim 9 , wherein the difference between the generated illumination pattern and the desired illumination pattern is due to one of an incomplete generation of the desired illumination pattern and a disruption of the desired illumination pattern.
14 . A system according to claim 9 , wherein the difference between the generated illumination pattern and the desired illumination pattern is due to one of an incomplete generation of the desired illumination pattern and a disruption of the desired illumination pattern.
15 . A system according to claim 9 , the computer further configured to:
modulate an intensity of a light generated by the identified light sources based on at least some of the sensor data.
16 . A system according to claim 9 , wherein the sensors comprise one or more of a temperature sensor, a light level sensor, and a moisture level sensor.
17 . A system for sensor-based dynamic lighting output intensity modulation, comprising:
a microlens array comprises a plurality of lenslets;
an array of solid state light sources aligned with each of the lenslets;
one or more sensors configured to collect data;
a computer in control of each of the light sources and interfaced to the one or more sensors, the computer comprising at least one processor, the computer configured to:
obtain a desired illumination pattern comprising at least one of a desired far-field illumination pattern and a desired light field distribution;
identify those of the light sources that need to be turned on to generate the desired illumination pattern;
command the identified light sources to turn on to provide light to generate the desired illumination pattern;
modulate an intensity of the light generated by the commanded light sources based on at least some of the sensor data.
18 . A system according to claim 17 , wherein the microlens array, the solid state light sources, and one or more of the sensors are comprised in a light field illuminator sheet and one of the sensors comprised on the sheet is a temperature sensor, the computer further configured to:
receive a temperature associated with the sheet from the temperature sensor;
compare the temperature to a threshold; and
turn off all of the commanded light sources based on the comparison.
19 . A system according to claim 17 , wherein the sensors comprise one or more of a temperature sensor, a light level sensor, and a moisture level sensor.
20 . A system according to claim 17 , wherein one or more sensors are wirelessly interfaced to the computer.