Patent ID: 11899398
Assignee: CHINA TOBACCO YUNNAN INDUSTRIAL CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  B  Y | IPC B  G

Claim 0:
1. A collapsible pyramid holographic projection imager, comprising a pyramid imaging member and a bottom fixing member, wherein
the pyramid imaging member comprises two support plates and a holographic projection film; a middle of the support plate is shaped as a crisscross framework; the holographic projection film is fixed between the two support plates;
four top-connected projection surfaces are pre-cut on the holographic projection film;
and tops of the projection surfaces are fixed at an intersection of the crisscross framework of the support plate;
four pre-cuts are formed in the bottom fixing member; and pins corresponding to the pre-cuts are respectively provided on bottoms of the projection surfaces;
in response to a collapsed state of the collapsible pyramid holographic projection imager, the pyramid imaging member and the bottom fixing member are placed independently in a sheet manner; and
in response to an expanded state of the collapsible pyramid holographic projection imager, the projection surfaces are pushed out from hollow portions of the crisscross framework of the support plate, and the pins of the projection surfaces are respectively inserted into the corresponding pre-cuts, thereby fixing a bottom of the holographic projection film; and two adjacent edges of the four projection surfaces are connected sequentially to form a pyramid shape.