LASER PROJECTION DEVICE

WIPO Patent Application WO/2021/197099

A1

A laser projection device (10), a laser assembly used thereby having a first light-emitting region (1101), a second light-emitting region (1102) and a third light-emitting region (1103) which respectively emit a laser beam having a first color, a laser beam having a second color, and a laser beam having a third color; a light combining lens group (120) comprises a plurality of light combining lenses (1201, 1202, 1203) which are provided respectively corresponding to the first light-emitting region (1101), the second light-emitting region (1102) and the third light-emitting region (1103) and are used for combining laser beams emitted from said light-emitting regions and emitting same to a light emitting port of a light source (100); the angles of beams combining the laser beam having a first color and the laser beam having a second color with the laser beam having a third color are larger than the angle of a beam emitted directly from the first light-emitting region and the angle of a beam emitted directly from the second light-emitting region, and are less than or equal to the beam angle of the laser beam having a third color.

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LI WEI (CN)
GU XIAOQIANG (CN)
TIAN YOULIANG (CN)

PCT/CN2021/081818

October 07, 2021

March 19, 2021

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HISENSE LASER DISPLAY CO LTD (CN)

G03B21/20; H01S5/06

CN111562713A	2020-08-21
CN111258165A	2020-06-09
CN101855902A	2010-10-06
CN104808425A	2015-07-29
EP3070939A1	2016-09-21
CN101815376A	2010-08-25
CN110161788A	2019-08-23
CN104972221A	2015-10-14
CN106785895A	2017-05-31

TDIP & PARTNERS (CN)

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