The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 12, 2023
Filed:
Jul. 03, 2022
Xiamen Pvtech Co., Ltd., Fujian, CN;
Xiamen PVTECH Co., Ltd., Fujian, CN;
Abstract
A lighting device includes a light source, a conducting wire, a controller and a coding switch. The conducting wire is connected to the light source. The controller is connected to a power source and a conducing wire. The coding switch is connected to the controller. The coded value of the coding switch is adjustable, such that the coded value is corresponding to the wire length of the conducting wire. The controller adjusts the duty cycle of a driving signal according the wire length corresponding to the coded value, and outputs the driving signal to the light source in order to drive the light source. The lighting device can provide the illumination compensation function via the coding switch without a phototube, which can significantly reduce the cost of the lighting device in order to satisfy the actual requirements.