Adaptive optical distribution system

• US 10,278,260 B2
• Filed: 10/12/2016
• Issued: 04/30/2019
• Est. Priority Date: 03/14/2013
• Status: Active Grant

• Current Assignee: ABL IP Holding LLC (Acuity Brands, Inc.)
• Original Assignee: ABL IP Holding LLC (Acuity Brands, Inc.)
• Inventors: Marquardt, Craig Eugene, Weiss, Daniel Aaron, Chen, Jie
• Primary Examiner(s): Houston, Adam D
• Application Number:
  US15/291,150
• Publication Number:
  US 20170034891A1
• Time in Patent Office: 930 Days
• Field of Search: 315152, 315153
• CPC Class Codes: F21S 8/086 with lighting device attached sideways of the standard, e.g. for roads and highways
• CPC Class Codes: F21V 5/04 of lens shape
• CPC Class Codes: F21W 2131/103 of streets or roads
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: H05B 45/10 Controlling the intensity of the light
• CPC Class Codes: H05B 47/105 in response to determined parameters
• CPC Class Codes: H05B 47/11 by determining the brightness or colour temperature of ambient light
• CPC Class Codes: H05B 47/115 by determining the presence or movement of objects or living beings
• CPC Class Codes: H05B 47/175 by remote control
• CPC Class Codes: H05B 47/18 via data-bus transmission
• CPC Class Codes: H05B 47/185 via power line carrier transmission
• CPC Class Codes: H05B 47/19 via wireless transmission
• CPC Class Codes: Y02B 20/40 Control techniques providing energy savings, e.g. smart controller or presence detection
• CPC Class Codes: Y02B 20/72 in street lighting

Abstract

A luminaire may include a plurality of different light engines. Light engines having different light distributions can be included in a single luminaire and a subset of the light engines selectively driven to dynamically change the light distribution of the luminaire. In this way, a single luminaire is capable of illuminating an area with a variety of different light distributions.

Claims

1. A luminaire comprising:

a sensor;

a first light engine;

a second light engine;

an initial state where the first light engine emits light for a first distribution and the second light engine emits light for a second distribution;

an alternate state where (i) the first light engine emits light for a third distribution such that the third distribution comprises less emitted light than the first distribution and (ii) the second light engine emits light for a fourth distribution such that the fourth distribution comprises more emitted light than the second distribution; and

a controller communicatively coupled with the sensor, the first light engine, and the second light engine, wherein;

the controller receives input from the sensor to determine whether a trigger event occurs based on the input; and

after the trigger event has occurred, the controller changes the luminaire from the initial state to the alternate state.

2. The luminaire of claim 1, wherein the sensor comprises a particulate sensor.

3. The luminaire of claim 1, wherein:

the first light engine comprises inner zone optics that produce an inner zone pattern; and

the second light engine comprises outer zone optics that produce an outer zone pattern.

4. The luminaire of claim 3, wherein the inner zone light pattern and the outer zone light pattern do not overlap.

5. The luminaire of claim 1, wherein the sensor comprises a rain sensor.

6. The luminaire of claim 1, wherein the sensor comprises a temperature sensor.

7. The luminaire of claim 1, wherein the sensor comprises a daylight sensor.

8. The luminaire of claim 1, wherein the sensor comprises a humidity sensor.

9. The luminaire of claim 1, wherein the sensor comprises a luminance sensor.

10. The luminaire of claim 1, wherein the sensor comprises a motion sensor.

11. The luminaire of claim 1, wherein the sensor comprises an input for manual control.

12. The luminaire of claim 2, wherein the particulate sensor detects at least one of dust or fog.

13. The luminaire of claim 1, wherein the trigger event occurs when a variable detected by the sensor surpasses a threshold value.

14. The luminaire of claim 13, wherein the controller changes the luminaire from the alternate state to the initial state after the variable detected by the sensor decreases below the threshold value.

15. The luminaire of claim 1, further comprising a proportional state wherein the controller adjusts emitted light for at least one of the first light engine and the second light engine in proportion to a variable detected by the sensor.