# US 2024/0201474 A1 · Projection Device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2024/0201474 A1 - Document ID: US20240201474A1 - Status: Published application - Kind: A1 - Application number: 18/555,054 - Filed: 2022-04-14 - Published: 2024-06-20 - Earliest claimed: 2021-04-14 - Assignees: Shenzhen Oceanwing Smart Innovations Technology Co., Ltd - Applicants: Shenzhen Oceanwing Smart Innovations Technology Co., Ltd - Inventors: Zhou Xu - Web page: https://patentgrep.com/patent/US20240201474A1 ## CPC - G02B 13/16: for use in conjunction with image converters or intensifiers {, or for use with projectors, e.g. objectives for projection TV} - G02B 7/02: for lenses {(supports for magnifying lenses G02B25/002)} - G03B 21/14: Details - G03B 21/2066: {Reflectors in illumination beam (in projection beam G03B21/28)} - G03B 21/28: Reflectors in projection beam {(in illumination beam G03B21/2066)} - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - G03B: APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR (optical parts of such apparatus G02B; photosensitive materials or processes for photographic purposes G03C; apparatus for processing exposed photographic materials G03D) ## Abstract This application relates to the field of projection device technology, and discloses a projection device, a projection lens component, and a projection system. The projection device comprises a display device, which has a display surface that is a curved surface, where the curvature of the display surface matches the curvature of the projection surface of the projection screen; The projection device also comprises a projection lens component, the incident light surface of the projection lens component is a plane and/or a convex arc surface towards the display surface, the light beam output from the display surface enters the projection lens component from the incident light surface and then is projected to the projection surface through the projection lens component. In this way, this application can improve the projection effect. ## Claims ### Claim 1 A projection device comprising: a display device, having a curved display surface, wherein a curvature of the curved display surface matches a curvature of a projection surface of a projection screen; and a projection lens component, wherein an incident light surface of the projection lens component is a convex arc surface towards the curved display surface. ### Claim 2 (depends on 1) The projection device according to claim 1, wherein: the display device comprises a first display device, a second display device, and a third display device, and each of the first display device, the second display device, and the third display device outputs an image of a different color, the projection lens component comprises a first lens, a second lens, and a third lens, the first lens, the second lens, and the third lens are arranged in a circular direction in sequence, an incident light surface of the first lens corresponds to the first display device, an incident light surface of the second lens corresponds to the second display device, and an incident light surface of the third lens corresponds to the third display device. ### Claim 3 (depends on 2) The projection device according to claim 2, further comprising: a first film layer provided on a surface between the first lens and the second lens, wherein the first film layer is configured to reflect a light beam output by the first display device and transmit a light beam output by the second display device and the third display device; and a second film layer provided on a surface between the second lens and the third lens, the second film layer is configured to reflect a light beam output by the third display device and transmit a light beam output by the first display device and the second display device. ### Claim 4 (depends on 2) The projection device according to claim 2, wherein a curvature of a display surface of the first display device, a curvature of a display surface of the second display device, and a curvature of a display surface of the third display device are equal. ### Claim 5 (depends on 2) The projection device according to claim 2, wherein: the incident light surface of the first lens is a curved surface convex towards the first display device; the incident light surface of the second lens is a curved surface convex towards the second display device; and the incident light surface of the third lens is a curved surface convex towards the third display device. ### Claim 6 (depends on 2) The projection device according to claim 2, wherein: a curvature of the incident light surface of the first lens is equal to a curvature of a display surface of the first display device; a curvature of the incident light surface of the second lens is equal to a curvature of a display surface of the second display device; and a curvature of the incident light surface of the third lens is equal to a curvature of a display surface of the third display device. ### Claim 7 (depends on 2) The projection device according to claim 2, wherein each of the incident light of the first lens, the incident light surface of the second lens, and the incident light surface of the third lens. ### Claim 8 (depends on 2) The projection device according to claim 2, wherein the first display device is spaced from the first lens, the second display device is spaced from the second lens, and the third display device is spaced from the third lens. ### Claim 9 (depends on 2) The projection device according to claim 2, wherein: the projection lens component further comprises a light-adjusting lens group, the first lens, the second lens, the third lens, and the light-adjusting lens group are arranged in a circular direction in sequence, and incident light beams on the first lens, the second lens, or the third lens are emitted from the light-adjusting lens group. ### Claim 10 (depends on 9) The projection device according to claim 9, wherein the light-adjusting lens group comprises a plurality of light-adjusting lenses, the plurality of light-adjusting lenses are arranged in sequence along the direction of light beam propagation. ### Claim 11 A projection device comprising: a projection screen; a display device, having a curved display surface, wherein a curvature of the curved display surface matches a curvature of a projection surface of the projection screen; and a projection lens component set between the display device and the projection surface of the projection screen, wherein the projection lens component has an incident light surface; and wherein the curved display surface of the display device is surrounded by a part of an outer periphery of the incident light surface of the projection lens component, and the projection lens component is configured to guide a light beam emitted from the curved display surface from the part of the outer periphery surrounded by the incident light surface to another part of the outer periphery of the incident light surface, and project the light beam to the projection surface. ### Claim 12 (depends on 11) The projection device according to claim 11, wherein: the display device comprises a first display device, a second display device, and a third display device, and each of the first display device, the second display device, and the third display device outputs an image of a different color, the projection lens component comprises a first lens, second lens, and a third lens, the first lens, the second lens, and the third lens are arranged in a circular direction in sequence, an incident light surface of the first lens corresponds to the first display device, an incident light surface of the second lens corresponds to the second display device, and an incident light surface of the third lens corresponds to the third display device. ### Claim 13 (depends on 12) The projection device according to claim 12, wherein: the incident light surface of the projection lens component is set in an arc shape and convex towards the display surface; the first lens, the second lens, and the third lens are in a fan-shaped cylindrical shape, and the incident light surfaces of the first lens, the second lens, and the third lens are all set in an arc shape; a curvature of the incident light surface of the first lens is equal to a curvature of a display surface of the first display device; a curvature of the incident light surface of the second lens is equal to a curvature of a display surface of the second display device; and a curvature of the incident light surface of the third lens is equal to a curvature of a display surface of the third display device. ### Claim 14 (depends on 13) The projection device according to claim 13, wherein: the first lens, the second lens, and the third lens are spliced together to form at least a part of a cylinder, and the projection device further comprises: a first film layer provided on the surface between the first lens and the second lens, wherein the first film layer is configured to reflect a light beam output by the first display device and transmit a light beam output by the second display device and the third display device; and a second film layer provided on a surface between the second lens and the third lens, the second film layer is configured to reflect a light beam output by the third display device and transmit a light beam output by the first display device and the second display device. ### Claim 15 (depends on 12) The projection device according to claim 12, wherein: the incident light surface of the projection lens component is in a flat shape, the first lens, the second lens, and the third lens are in a rhombic column shape, and the incident light surfaces of the first lens, the second lens, and the third lens are flat, so that the incident light surface of the projection lens component is set in a multi-flat splicing shape. ### Claim 16 (depends on 15) The projection device according to claim 15, wherein: the first lens, the second lens, and the third lens are spliced together to form at least a part of a quadrangular prism, and the projection device further comprises: a first film layer provided on the surface between the first lens and the second lens, wherein the first film layer is configured to reflect a light beam output by the first display device and transmit a light beam output by the second display device and the third display device; and a second film layer provided on a surface between the second lens and the third lens, the second film layer is configured to reflect a light beam output by the third display device and transmit a light beam output by the first display device and the second display device. ### Claim 17 (depends on 12) The projection device according to claim 12, wherein: the first display device is spaced from the first lens, the second display device is spaced from the second lens, and the third display device is spaced from the third lens. ### Claim 18 (depends on 12) The projection device according to claim 12, wherein: the projection lens component further comprises a light-adjusting lens group, the first lens, the second lens, and the third lens and the light-adjusting lens group are arranged in the circular direction in sequence, and the light beams incident on the the first lens, the second lens, and the third lens are emitted from the light-adjusting lens group. ### Claim 19 (depends on 18) The projection device according to claim 18, wherein: the light-adjusting lens group comprises several light-adjusting lenses, the several light-adjusting lenses are arranged in sequence along a direction of light beam propagation, or the light-adjusting lens group comprises an arc mirror, and the arc mirror is convex towards the direction of light beam propagation. ### Claim 20 A projection system comprises: a projection device, and a projection screen comprising a projection surface, wherein the projection device comprises: a display device, having a curved display surface, wherein a curvature of the curved display surface matches a curvature of the projection surface; and a projection lens component, wherein an incident light surface of the projection lens component is a convex arc surface towards the curved display surface, and a light beam output by the curved display surface is projected onto the projection surface through the projection lens component.