Wide expansion projection device and projection system

Abstract

The application provides a width expansion projection device and a projection system. The width expansion projection device comprises: a projection assembly for projecting continuous cutting pictures; a rotating assembly arranged on the side of the projection assembly, and the rotating frequency of the rotating assembly is greater than or equal to 24 Hz; and a refracting assembly arranged on the rotating assembly and matched with the projection end of the projection assembly, the refracting assembly refracts the picture projected by the projection end. The width expansion projection device provided by the application drives the refracting assembly to rotate around the projection assembly through the rotating assembly, the rotating assembly provides support and fixation for the refracting assembly and rotates around the projection assembly at a frequency greater than or equal to 24 Hz, the refracting assembly refracts the projected picture when rotating through the projection end of the projection assembly and forms an entirety with the original projected picture of the projection assembly, the expansion of the width direction of the projected picture is realized based on the human eye visual residual principle, there is no color difference problem, and the width expansion projection device can be realized, the structure is simple, and the cost is low.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of projection device design, and more particularly to a width expansion projection device and a projection system. BACKGROUND

[0002] The projector is a device that can project images or videos onto a screen. It can be connected to computers, VCDs, DVDs, game consoles, etc. through different interfaces to play corresponding video information. With the rapid development of society, projectors are widely used in homes, offices, schools and entertainment venues, and have broad market prospects.

[0003] Currently, there are many scenarios that require a large picture in the width direction, that is, new connected projections are formed on the basis of the original projection range of a projector. This effect is usually achieved by using multiple projectors to splice and fuse, eliminating the fusion band between the projections through a fusion device, and then dividing and projecting a picture onto different projectors through a splitter to splice a large picture.

[0004] However, the existing width expansion projection requires multiple projectors and splicers, which is complex in structure and high in cost. SUMMARY

[0005] The purpose of the embodiments of the application is to provide a width expansion projection device to solve the problem of the existing technology that the width expansion projection requires multiple projectors and splicers, which is complex in structure and high in cost.

[0006] To achieve the above purpose, the technical solution adopted by the application is to provide a width expansion projection device, comprising:

[0007] A projection assembly for projecting a continuous cut picture.

[0008] A rotating assembly arranged on the side of the projection assembly, and the rotating frequency of the rotating assembly is greater than or equal to 24Hz.

[0009] A folding element arranged as a single lens or a combination of multiple lenses to deflect light, arranged on the rotating assembly and matched with the projection end of the projection assembly, the folding element refracts the picture projected by the projection end to realize picture deflection.

[0010] Optionally, the projection assembly comprises a projection end and a fixed end, the projection end is fixed to the inner side of the rotating assembly through the fixed end, and the rotating assembly rotates relative to the projection end.

[0011] Optionally, the rotating assembly comprises a rotating ring plate, the rotating ring plate is sleeved outside the projection assembly, and an inner diameter of the rotating ring plate is greater than a size of the projection assembly.

[0012] Optionally, the folding member is arranged on the rotating ring plate, and the rotating ring plate is lower than the projection end of the projection assembly in the horizontal height.

[0013] Optionally, the folding member is arranged on the rotating ring plate, and the rotating ring plate is lower than the projection end of the projection assembly in the horizontal height.

[0014] Optionally, the folding member is arranged on the rotating ring plate, and the rotating ring plate is lower than the projection end of the projection assembly in the horizontal height.

[0015] Optionally, the folding member is arranged on the rotating ring plate, and the rotating ring plate is lower than the projection end of the projection assembly in the horizontal height.

[0016] Optionally, the folding member is arranged on the rotating ring plate, and the rotating ring plate is lower than the projection end of the projection assembly in the horizontal height.

[0017] Optionally, the folding member is arranged on the rotating ring plate, and the rotating ring plate is lower than the projection end of the projection assembly in the horizontal height.

[0018] Optionally, the folding member is arranged on the rotating ring plate, and the rotating ring plate is lower than the projection end of the projection assembly in the horizontal height.

[0019] Optionally, the folding member is arranged on the rotating ring plate, and the rotating ring plate is lower than the projection end of the projection assembly in the horizontal height.

[0020] The width expansion projection device provided by the application has the beneficial effects that, compared with the prior art, the width expansion projection device provided by the application drives the folding member to rotate around the side of the projection assembly through the rotating assembly, the rotating assembly supports and fixes the folding member and drives the projection assembly to rotate at a frequency greater than or equal to 24 Hz, the folding member refracts the projection picture when rotating through the projection end of the projection assembly and forms an entirety with the original projection picture of the projection assembly, the expansion of the width direction of the projection picture is realized based on the human eye visual persistence principle, there is no color difference problem, and the width expansion projection device can be realized, the structure is simple, and the cost is low. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor based on these drawings.

[0022] Figure 1 The structural diagram of a width expansion projection device provided by the embodiment of the present application Figure One ;

[0023] Figure 2 The structural diagram of a width expansion projection device provided by the embodiment of the present application Figure Two .

[0024] In the drawings, various reference signs represent:

[0025] 1 - width expansion projection device

[0026] 10 - projection assembly

[0027] 11 - projection end

[0028] 12 - fixed end

[0029] 20 - rotating assembly

[0030] 21 - rotating ring plate

[0031] 30 - folding member

[0032] 40 - control assembly DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the present application more clear, the following will combine the drawings of the preferred embodiments of the present application, and describe the technical solutions in the embodiments of the present application in more detail. In the drawings, the same or similar reference signs represent the same or similar components or components with the same or similar functions throughout. The described embodiments are some embodiments of the present application, not all embodiments. The embodiments described below by referring to the drawings are exemplary, and are intended to explain the present application, and cannot be understood as limiting the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application. The embodiments of the present application will be described in detail below by combining the drawings.

[0034] In the description of the application, it is necessary to point out that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "linking" should be understood in a broad sense, for example, it can be fixedly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements or the interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0035] In the description of the application, it is necessary to understand that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the application.

[0036] The terms "first", "second", "third" (if any) in the specification and claims of the present application and the above drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the application described herein can be implemented in an order other than that illustrated or described herein.

[0037] In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or maintenance tool including a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or maintenance tools.

[0038] Please refer to Figures 1-2The width expansion projection device provided by the embodiment of the present application is described as follows. The width expansion projection device comprises a projection component 10, a rotating component 20 and a refracting component. The projection component 10 is usually a projector with a projection function and is used for projecting towards a projection surface. The projection component 10 is arranged inside the rotating component 20. The rotating component 20 is arranged on the side of the projection component. The rotating component 20 can be arranged as a ring-shaped body which is sleeved on the side of the projection component 10. The refracting component 30 is arranged on the rotating component 20 and matches the projection end 11 of the projection component 10. The refracting component 30 refracts the picture projected by the projection end 11. In order to achieve the visual effect of the human eye, the rotating speed of the rotating component 20 needs to reach a certain frequency, and the human eye can recognize the picture as a wide and coherent picture. Usually, the recognition speed of the human eye for a coherent picture is 24 frames per second, that is, 1000 milliseconds per 24 frames, about 40 ms. Correspondingly, when the rotating frequency of the rotating component 20 is greater than or equal to 24 Hz, the picture projected by the projection component 10 recognized by the human eye is a coherent whole picture. The whole picture is projected by one projection component, and there is no color difference. In addition, the refracting component 30 is used for refracting the picture projected by the projection end 11. It can be understood that the rotating component 20 rotates on the side of the projection end 11 and drives the refracting component 30 to rotate. When the refracting component 30 rotates through the projection end 11, that is, the projection angle of the projection end 11 and the refracting component 30 form a straight line, the picture projected by the projection end 11 is refracted by the refracting component 30 to produce a deviation, thereby achieving the effect of expanding the projection range.

[0039] It can be understood that the refracting angle of the picture projected by the projection end 11 is fixed when the refracting component 30 passes through the projection end 11. By adjusting the angle of the refracting component 30, the picture projected by the projection end 11 is spliced on the corresponding side of the projection width of the projection end 11, that is, the refracted picture and the straight projection picture of the projection end 11 are spliced to form a whole picture. Thus, the projection width of the projection component 10 is expanded, a better projection effect is achieved, the splitter and the fusion device are further saved, and a projection with lower cost and better projection width effect can be achieved.

[0040] Optionally, the projection component 10 comprises a projection end 11 and a fixed end 12. The projection end 11 is fixed to the inside of the rotating component 20 through the fixed end 12, and the rotating component 20 rotates relative to the projection end 11. When the rotating component 20 rotates, the projection component 10 as a whole is kept stationary, so that the projection component 10 and the rotating component 20 produce relative rotation. The fixed end 12 usually fixes the projection component 10 as a whole to the ground or the like. The rotating component 20 is arranged outside the projection end 11 and the fixed end 12 and rotates relative thereto.

[0041] Correspondingly, the optional rotating assembly 20 comprises a rotating ring plate 21 and a driving member (not shown in the figure), the driving member drives the rotating ring plate 21 to rotate around the projection assembly 10 as the axis, the rotating ring plate 21 is sleeved on the outside of the projection assembly 10, and the inner diameter of the rotating ring plate 21 is larger than the size of the projection assembly 10.

[0042] It can be understood that the rotating ring plate 21 and the projection assembly 10 are coaxially arranged, and the driving member is arranged on the circumferential side of the rotating ring plate 21 to drive the rotating ring plate 21 to rotate coaxially relative to the projection assembly 10. In order to achieve better rotation effect, the shape of the rotating ring plate 21 is optionally set as a regular circular ring shape, so that the centrifugal force of the periphery is uniformly stressed during the rotation of the rotating ring plate 21; in addition, the rotating ring plate 21 can be driven by a motor or other driving member, and the stable rotation of the rotating ring plate 21 can be completed, and in addition, the rotating mechanism can also drive the refracting member to the required position in time through reciprocating swinging movement, which is not limited in the embodiment.

[0043] Specifically, the rotating ring plate 21 is arranged as a ring-shaped plate body, and the rotating ring plate 21 rotates around the center point of the projection assembly 10 as the axis, and the refracting member 30 on the upper side of the rotating ring plate 21 can pass through the projection end 11 of the front end of the projection assembly 10 in turn. Correspondingly, in order to avoid the rotating ring plate 21 from affecting the projection picture during rotation, the rotating ring plate 21 is optionally arranged to be lower than the height of the projection end 11 of the projection assembly 10 in horizontal height. It can be understood that the rotating ring plate 21 is always lower than the height of the projection end 11 during rotation, and the picture projected by the projection end 11 will not be blocked by the rotating ring plate 21, so as to achieve better projection effect. In addition, further, in order to achieve the refraction effect of the refracting member 30 on the projection end 11, when the refracting member 30 is installed on the rotating ring plate 21, the height of the refracting member 30 is the same as the horizontal height of the projection end 11, so that the refracting member 30 is always on the same horizontal line with the projection end 11 every time it passes through the position of the projection end 11, so as to achieve better projection refraction effect.

[0044] In the above embodiment, the refracting member 30 can be arranged as one or a plurality of refracting members 30. When a plurality of refracting members 30 are arranged, the refracting member 30 will refract the picture of the projection end 11 when each refracting member 30 passes through the projection end 11. For this purpose, the refracting member 30 is optionally arranged as at least two, and the refracting members 30 are arranged at intervals on the rotating assembly 20, and when the rotating assembly 20 rotates, each refracting member 30 passes through the projection end 11 of the projection assembly 10 and refracts the picture thereof.

[0045] Exemplarily, the two folding members 30 are arranged on the rotating ring plate 21 at intervals, and the two folding members 30 are rotated to the front of the projection end 11 respectively, so that the projection end 11 projects a cutting picture once. It can be understood that the two folding members 30 correspond to the two side extension pictures of the picture projected by the projection end 11 respectively, and exemplarily, the two folding members 30 are rotated to the left and right sides of the projection end 11 respectively. The folding member 30 on the left side of the projection end 11 refracts the picture projected by the projection end 11 to the left side of the picture projected by the projection end 11 in front of the projection end 11. Correspondingly, the folding member 30 on the right side of the projection end 11 refracts the picture projected by the projection end 11 to the right side of the picture projected by the projection end 11 in front of the projection end 11. Alternatively, the folding member 30 on the left side of the projection end 11 refracts the picture projected by the projection end 11 to the right side of the picture projected by the projection end 11 in front of the projection end 11. Correspondingly, the folding member 30 on the right side of the projection end 11 refracts the picture projected by the projection end 11 to the left side of the picture projected by the projection end 11 in front of the projection end 11. The specific case is realized by the material and refraction effect of the folding member 30, and the embodiment takes the folding member 30 on the left side of the projection end 11 as an example, which refracts the picture projected by the projection end 11 to the left side of the picture projected by the projection end 11 in front of the projection end 11. Correspondingly, the folding member 30 on the right side of the projection end 11 refracts the picture projected by the projection end 11 to the right side of the picture projected by the projection end 11 in front of the projection end 11. The present embodiment does not limit this.

[0046] It should be noted that in the present application, the folding member 30 is usually arranged as a refractive lens, so as to realize the refraction of the picture by the folding member 30 when passing through the projection end 11. In addition, the angle of the folding member 30 needs to be adjusted according to the specific width of the widened projection, so as to achieve better width expansion effect. The present embodiment does not repeat the description.

[0047] It should be noted that when the two folding members 30 are rotated to the front of the projection end 11 respectively, the projection end 11 changes the projection picture to the expanded picture on both sides of the normal projection picture, thereby forming an integral whole with the original picture. It can be understood that when the projection end 11 normally projects, the projection end 11 forms an A picture with a constant width on the projection surface; when the left folding member 30 passes through the front of the projection end 11, the picture projected by the projection end 11 forms an expanded B picture on the left side of the A picture through the folding member 30; when the right folding member 30 passes through the front of the projection end 11, the picture projected by the projection end 11 forms an expanded C picture on the right side of the A picture through the folding member 30, that is, the pictures are arranged in the order of B, A, C, and there is no interval between the pictures, thereby forming a complete picture with a wide width. Therefore, optionally, the two adjacent projection pictures of the projection end 11 are continuous cutting pictures on both sides of the length direction of the integral picture, that is, the continuous cutting pictures on the left side of the length direction of the integral picture between B and A, and the continuous cutting pictures on the right side of the length direction of the integral picture between A and C, thereby achieving better width expansion effect and visual effect.

[0048] In addition, in order to realize the 360-degree projection effect of the projection end 11, optionally, a control assembly 40 is further included, the control assembly 40 is electrically connected with the projection assembly 10 and the rotating assembly 20 respectively, the control assembly 40 controls the rotation of the rotating assembly 20, and the control assembly 40 controls the projection assembly 10 to project different cutting pictures when the rotating assembly 20 is rotated to different angles. It can be understood that the control assembly 40 serves as a control center, and realizes the cutting effect of the projection picture while realizing the control function, which is realized by corresponding picture software, and the rotation speed of the rotating assembly 20 is matched with the projection frequency of the projection assembly 10, thereby achieving better projection effect, which will not be described in detail in the embodiment.

[0049] On the basis of the above embodiment, the application further provides a projection system, comprising a projection surface and the width expansion projection device.

[0050] The width expansion projection device provided in the embodiment is the same as the width expansion projection device in the above embodiment, and achieves the same technical effect, which will not be described in detail in the embodiment.

[0051] The above is only a preferred embodiment of the application, and is not used to limit the application, and any modification, equivalent replacement and improvement made within the spirit and principle of the application should be included in the protection scope of the application.

Claims

1. A width-expanding projection device, characterized in that, include: Projection components are used to project a continuous series of segmented images; A rotating component is disposed around the projection component, and the rotation frequency of the rotating component is greater than or equal to 24Hz; wherein, the rotating component includes a rotating ring plate and a driving component, the driving component drives the rotating ring plate to rotate around the projection component as an axis, the rotating ring plate is sleeved on the outside of the projection component, and the inner diameter of the rotating ring plate is larger than the specification of the projection component; A refractive element, configured as a single lens or a combination of multiple lenses, serves to deflect light. It is mounted on the rotating assembly and matched with the projection end of the projection assembly. The refractive element refracts the image projected by the projection end, thereby deflecting the image. A control component is electrically connected to both the projection component and the rotation component. The control component controls the rotation component to rotate and controls the projection component to project different cut images when the rotation component rotates to different angles.

2. The width-expanding projection device as described in claim 1, characterized in that: The projection component includes a projection end and a fixed end. The projection end is fixed to the inner side of the rotating component through the fixed end, and the rotating component rotates relative to the projection end.

3. The width-expanding projection device as described in claim 1, characterized in that: The refractive element is disposed on the rotating ring plate, and the rotating ring plate is horizontally lower than the height of the projection end of the projection assembly.

4. The width-expanding projection device as described in claim 3, characterized in that: The refractive element is at the same horizontal height as the projection end.

5. The width-expanding projection device as described in any one of claims 1-4, characterized in that: The refractive element is provided at one or more times, and the refractive element is disposed on the rotating assembly. When the rotating assembly rotates, each of the refractive elements passes through the projection end of the projection assembly.

6. The width-expanding projection device as described in claim 5, characterized in that: Two refractive elements are provided, and the two refractive elements are spaced apart on the rotating ring plate; When the two refractive elements are rotated to be directly in front of the projection end, the projection end projects a cut image.

7. The width-expanding projection device as described in claim 6, characterized in that: The two adjacent projected images at the projection end are continuous cuts of the overall image along its length.

8. A projection system comprising a projection surface and the width-expanding projection device as described in any one of claims 1-7.

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