Title:
LASER PROJECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/071971
Kind Code:
A1
Abstract:
Provided is a laser projection device. A dichroic component is provided on an exit light path of a laser array and configured to receive first blue polarized light from the laser array. A 1/4 wave plate is provided between a reflecting member and the dichroic component and configured to receive first blue polarized light from the dichroic component to produce second blue polarized light and transmit the second blue polarized light to the reflecting member, and further configured to receive the second blue polarized light reflected by the reflecting member to generate third blue polarized light and transmits 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 outputs the third blue polarized light and the fluorescent light in the same light-exit direction.
Inventors:
LI WEI (CN)
Application Number:
PCT/CN2018/090435
Publication Date:
April 18, 2019
Filing Date:
June 08, 2018
Export Citation:
Assignee:
QINGDAO HISENSE ELECTRONICS CO LTD (CN)
International Classes:
G03B21/20
Foreign References:
| CN107505807A | 2017-12-22 | |||
| CN107544202A | 2018-01-05 | |||
| JP2012078488A | 2012-04-19 | |||
| CN103207507A | 2013-07-17 | |||
| CN106647126A | 2017-05-10 | |||
| JP2014021223A | 2014-02-03 |
Attorney, Agent or Firm:
LEADER PATENT & TRADEMARK FIRM (CN)
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