US Patent No. 11,032,892

LUMINANCE DETERMINING METHOD


Patent No. 11,032,892
Issue Date June 08, 2021
Title Luminance Determining Method
Inventorship Jianxin Xie, Xiamen (CN)
Assignee XIAMEN ECO LIGHTING CO. LTD., Xiamen (CN)

Claim of US Patent No. 11,032,892

1. A method of determining luminance according to a location of human presence, comprising:detecting human presence within an effective detecting region via an infrared sensor; wherein the effective detecting region of the infrared sensor includes a first region and a second region, the first region is farther from the infrared sensor than the second region is, and the first region surrounds the second region;
setting and storing, via a memory, a first luminance for human presence within the first region, a second luminance for human presence within the second region, and a third luminance for nonoccurrence of human presence within both the first region and the second region, wherein the second luminance is higher than the first illuminance, and the first illuminance is higher than the third illuminance; and
activating an illuminating device, via a processing unit, by applying the first luminance, the second luminance, or the third luminance, in response to a result of detecting human presence within the effective detecting region of the infrared sensor.