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:
Dec. 17, 2019
Filed:
Jun. 08, 2018
Qingdao Hisense Electronics Co., Ltd., Qingdao, Shandong, CN;
Wei Li, Shandong, CN;
Qingdao Hisense Electronics Co., Ltd., Qingdao, Shandong, CN;
Abstract
For a laser projection device, a dichroic component is disposed on a light emitting path of a laser array for receiving a first blue polarized light from the laser array. A 1/4 wave plate is disposed between a reflective component and the dichroic component and configured to receive the first blue polarized light from the dichroic component, generate a second blue polarized light, and emit the second blue polarized light to the reflective component; and further configured to receive the second blue polarized light reflected by the reflective component, generate a third blue polarized light, and emit the third blue polarized light to the dichroic component. The dichroic component is further configured to receive the third blue polarized light from the 1/4 wave plate and fluorescent light from a reflective fluorescent wheel, and output the third blue polarized light and the fluorescent light in a same light emitting direction.