Title:
LASER PROJECTION MODULE, DEPTH CAMERA AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/165853
Kind Code:
A1
Abstract:
A laser projection module (10). The laser projection module (10) comprises a substrate assembly (11), a lens barrel (12), a light source (13), a collimating element (14) and a diffractive optical element (15). The lens barrel (12) comprises a lens barrel side wall (122), the lens barrel side wall (122) being provided on the substrate assembly (11) and sharing and forming an accommodating cavity (121) with the substrate assembly (11); the lens barrel (12) comprises a limit protrusion (123) that protrudes inwards from the lens barrel side wall (122), and the lens barrel (12) is provided thereon with a first positioning part (128). The light source (13) is disposed on the substrate assembly (11) and is used for emitting lasers to the accommodating cavity (121). The collimating element (14) is accommodated in the accommodating cavity (121). The light source (13), the collimating element (14) and the diffractive optical element (15) are successively arranged on the optical path of the light source (13); an outer surface of the diffractive optical element (15) comprises a bottom surface (152), and the bottom surface (152) is joined to the limit protrusion (123); the diffractive optical element (15) comprises a second positioning part (154) formed on the outer surface thereof; and the first positioning part (128) and the second positioning part (154) are joined when and only when the bottom surface (152) is joined to the limit protrusion (123).
Inventors:
JIA YUHU (CN)
Application Number:
PCT/CN2019/070770
Publication Date:
September 06, 2019
Filing Date:
January 08, 2019
Export Citation:
Assignee:
GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD (CN)
International Classes:
G03B21/20; G03B21/14
Foreign References:
| CN207780466U | 2018-08-28 | |||
| CN108196416A | 2018-06-22 | |||
| CN108388067A | 2018-08-10 | |||
| CN107390461A | 2017-11-24 | |||
| CN206362957U | 2017-07-28 | |||
| TW201310104A | 2013-03-01 | |||
| JP2006064929A | 2006-03-09 | |||
| CN101196603A | 2008-06-11 | |||
| CN206920675U | 2018-01-23 |
Attorney, Agent or Firm:
TSINGYIHUA INTELLECTUAL PROPERTY LLC (CN)
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