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:
Aug. 24, 2021
Filed:
May. 06, 2019
Xiamen Eco Lighting Co. Ltd., Xiamen, CN;
XIAMEN ECO LIGHTING CO. LTD., Xiamen, CN;
Abstract
The LED tube lamp includes a lamp tube, an LED substrate, and a diffusion film. The LED substrate includes a plurality of LED chips disposed on the LED substrate, and a driving circuitry for receiving power to enable the plurality of LED chips. The diffusion film is disposed on a surface of the lamp tube. The diffusion film includes a first region and a second region adjacent to the first region. The first region and the second region of the diffusion film are arranged along a longitudinal axis of the lamp tube. The first region has a first transmittance rate and the second region has a second transmittance rate higher than the first transmission rate.