US 12,343,437 B2
Light and disinfection system and a method for disinfecting an illuminated surface by the system
Ming Lei, Shanghai (CN); and Huisheng Zhou, Shanghai (CN)
Assigned to SAVANT TECHNOLOGIES LLC, East Cleveland, OH (US)
Filed by CONSUMER LIGHTING (U.S.), LLC, Norwalk, CT (US)
Filed on Feb. 4, 2020, as Appl. No. 16/782,050.
Claims priority of application No. 201910113788.X (CN), filed on Feb. 14, 2019.
Prior Publication US 2020/0282089 A1, Sep. 10, 2020
Int. Cl. A61L 2/10 (2006.01); A61L 2/24 (2006.01); H05B 47/13 (2020.01)
CPC A61L 2/10 (2013.01) [A61L 2/24 (2013.01); H05B 47/13 (2020.01)] 11 Claims
OG exemplary drawing
 
1. A system for disinfecting an illuminated surface, the system comprising:
an illumination module, including an illumination source comprising a metal core printed circuit board (MCPCB) and configured to emit non-disinfecting light;
a distance sensor for detecting a distance between the system and a surface illuminated by the illumination source;
a disinfection module, including a disinfection light source different from the illumination source comprising a MCPCB and configured to emit disinfecting light;
wherein the MCPCB of the illumination source comprises a long strip MCPCB and illumination light source elements provided thereon at intervals, wherein the MCPCB of the disinfection light source comprises a long strip MCPCB and disinfection light source elements provided thereon at intervals, and wherein the MCPCB of the illumination source and the MCPCB of the disinfection light source are mounted adjacently to each other on the system and configured such that an adjustable angle is formed between the disinfection light source and the illumination source, the adjustable angle being configured so that light emitted by the disinfection light source and light emitted by the illumination source have a substantially coincident illumination range on the illuminated surface;
a timing module comprising an automatic timer and being coupled to the disinfection light source for controlling a timing in which the disinfection light source is turned on and off; and
a control unit configured to receive the distance detected by the distance sensor and control an irradiation power of the disinfection light source based on the distance and the timing, via the automatic timer, such that an irradiation amount of the illuminated surface within one disinfection cycle is kept at a predetermined value.