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. 20, 2019
Filed:
Dec. 01, 2017
Xiamen Eco Lighting Co., Ltd., Xiamen, Fujian Province, CN;
Abstract
The present invention relates to an optical device capable of effecting changeable beam angles. The optical device includes a light source plate, a convergence lens, and at least two diffusion lenses. When one of the at least two diffusion lenses is in use, the rest of the at least two diffusion lenses are in a stand-by state. The optical device is configured such that the light emitted by the light source plate is collimated by the convergence lens and allowed to go through the diffusion lens in use to be diffused. The optical device is configured to cause the collimated light incident on refraction surfaces of the different diffusion lenses with different incident angles to exit from the different diffusion lenses with different emergence angles. The optical device is capable of employing different diffusion lenses for changing the beam angle of the optical device.