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US 12,675,037 B2Granted
Ambient image projection device
AssigneeZhongshan Jiaen Optoelectronics Co., Ltd.
InventorsShaoqi Ji, Kexian Liu, Bo Li, Yong Huang, Gang Wang, Jing Li
Life of this patent
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Abstract
An ambient image projection device includes a lens assembly and a projection assembly. The projection assembly includes a first light source and a display screen. Content displayed on the display screen forms dynamic images to be projected into space under guidance of the lens assembly. The first light source, the display screen, and the lens assembly are arranged along an optical path direction of the projection assembly. The display screen is arranged on a light-emitting side of the first light source and is coaxially arranged with the first light source.
Claims18
An ambient image projection device, comprising
- a lens assembly;
- a projection assembly;
- wherein the projection assembly comprises a first light source and a display screen;
- and
- a distortion lens assembly configured to receive image light from the lens assembly, to expand a projection range of the image light, and to induce distortion in a portion of the image light at edge regions of the image light;
- wherein content displayed on the display screen forms dynamic images to be projected into space under guidance of the lens assembly;
- and
- the first light source, the display screen, and the lens assembly are arranged along an optical path direction of the projection assembly, and the display screen is arranged on a light-emitting side of the first light source and is coaxially arranged with the first light source;
- wherein the distortion lens assembly comprises a convex lens arranged adjacent to the lens assembly and a concave lens arranged on a side of the convex lens opposite to the lens assembly, wherein a surface of the convex lens facing the lens assembly is convex, a surface of the convex lens opposite to the lens assembly is flat, the concave lens is a biconcave lens, a concave curvature on the light-receiving side of the second concave lens is greater than that on the light-emitting side, and a diameter of a projected pattern along an optical axis of the second concave lens on the light-receiving side is smaller than that on the light-emitting side.
6 more elements
An ambient image projection device, comprising
- a lens assembly;
- a projection assembly;
- wherein the projection assembly comprises a first light source and a display screen;
- and
- a distortion lens assembly configured to receive image light from the lens assembly, to expand a projection range of the image light, and to induce distortion in a portion of the image light at edge regions of the image light;
- wherein content displayed on the display screen forms dynamic images to be projected into space under guidance of the lens assembly;
- and
- the first light source, the display screen, and the lens assembly are arranged along an optical path direction of the projection assembly, and the display screen is arranged on a light-emitting side of the first light source and is coaxially arranged with the first light source;
- wherein the distortion lens assembly comprises a convex lens arranged adjacent to the lens assembly and a concave lens arranged on a side of the convex lens opposite to the lens assembly, wherein a surface of the convex lens facing the lens assembly is convex, a surface of the convex lens opposite to the lens assembly is flat, the concave lens is a biconcave lens;
- a maximum thickness of the convex lens ranges between 6.2 mm and 10.2 mm, and a concave surface of the concave lens facing the convex lens and an optical center of the convex lens ranges from 11.7 mm to 21.7 mm.
7 more elements
An ambient image projection device, comprising
- a lens assembly;
- a projection assembly;
- wherein the projection assembly comprises a first light source and a display screen;
- wherein content displayed on the display screen forms dynamic images to be projected into space under guidance of the lens assembly;
- and
- the first light source, the display screen, and the lens assembly are arranged along an optical path direction of the projection assembly, and the display screen is arranged on a light-emitting side of the first light source and is coaxially arranged with the first light source;
- wherein the ambient image projection device further comprises:
- an optical module housing, wherein the projection assembly, and the lens assembly are arranged in the optical module housing, the optical housing comprises at least one air inlet;
- and
- a first heat-dissipation fan arranged on a side of the projection assembly opposite to the at least one air inlet and configured to allow air from the at least one air inlet to be drawn through gaps between two adjacent components of the projection assembly to take away heat from the projection assembly.
7 more elements
An ambient image projection device, comprising
- a lens assembly;
- and
- a projection assembly;
- wherein the projection assembly comprises a first light source and a display screen;
- wherein content displayed on the display screen forms dynamic images to be projected into space under guidance of the lens assembly;
- and
- the first light source, the display screen, and the lens assembly are arranged along an optical path direction of the projection assembly, and the display screen is arranged on a light-emitting side of the first light source and is coaxially arranged with the first light source;
- wherein a projection ratio of the ambient image projection device is less than or equal to 0.9, the projection ratio is a ratio of a projection distance to a width of a projected image, and the projection distance is a straight-line distance from a light-emitting side of the ambient image projection device to the projected image.
5 more elements
Dependencies are inferred from the claim text.