公开(公告)号：EP3432068B1

公开(公告)日：2020-11-04

申请号：EP18184762.5

申请日：2018-07-20

申请人： Chen, Chih-Lung ,  Chen, Chih-Ming

发明人： Chen, Chih-Lung ,  Chen, Chih-Ming

IPC分类号： F21S10/02 ,  G03B23/10 ,  G03B21/54

公开(公告)号：EP3432068A3

公开(公告)日：2019-02-20

申请号：EP18184762.5

申请日：2018-07-20

申请人： Chen, Chih-Lung ,  Chen, Chih-Ming

发明人： Chen, Chih-Lung ,  Chen, Chih-Ming

IPC分类号： G03B21/54

摘要： A laser projection device including at least a laser light source module (110), a bandpass filter (130), a grating module (150), a first periscope (140) and a motor (160). The laser light source module is provided for emitting a light. The grating module is a ring structure and includes plural grating sheets disposed at an edge of the grating module. The motor is connected to the grating module for rotating the grating module. The grating sheet has a figure which is a continuous figure, and the grating sheet is arranged onto the grating module continuously and sequentially according to the figure. When the light passes through the grating sheet, an animation effect of playing the figures continuously can be achieved.