Projection equipment and projection system

Abstract

The utility model provides projection equipment and a projection system, and relates to the technical field of projection, and the projection equipment comprises a projection host which is provided with a housing; the correction assembly is mounted on the shell; the correction assembly comprises a protection part, the interior of the protection part is provided with a containing cavity, the protection part is provided with a light-transmitting window, the light-transmitting window is communicated with the containing cavity, and the orientation of the light-transmitting window is consistent with the projection direction of the projection host; the camera part is arranged in the accommodating cavity, and the camera part is in communication connection with the projection host; the light inlet side of the camera part faces the light-transmitting window. According to the projection equipment and the projection system provided by the invention, when the projection picture exceeds the boundary of the projection screen, the projection picture can be automatically corrected to enter the screen, so that a good display effect is kept.

Description

Technical Field

[0001] The present application relates to the field of projection technology, and in particular to a projection device and a projection system. Background Art

[0002] With the gradual development of the projection industry, users' acceptance of home projection products is increasing. Among them, laser projection equipment is widely used due to its advantages of high light efficiency, high contrast and long life.

[0003] In the prior art, a laser projection device can project a projection image onto a projection screen, and the position of a laser beam emitted by an optical engine in the laser projection device and the projection screen needs to be strictly aligned.

[0004] However, if the user accidentally moves the projection device, the image projected by the projection device may exceed the projection screen, resulting in poor display effect of the projection image. Utility Model Content

[0005] In view of the above problems, the present application provides a projection device and a projection system, which can automatically correct the projection image into the screen when the projection image exceeds the boundary of the projection screen, thereby maintaining a good display effect.

[0006] In order to achieve the above objectives, this application provides the following technical solutions:

[0007] A first aspect of the present application provides a projection device, comprising:

[0008] A projection host having a housing;

[0009] A correction assembly mounted on the housing;

[0010] The calibration kit includes:

[0011] A protective member, wherein the protective member has an accommodating cavity inside, and a light-transmitting window is provided on the protective member, the light-transmitting window is connected to the accommodating cavity, and the direction of the light-transmitting window is consistent with the projection direction of the projection host;

[0012] The camera component is arranged in the accommodating cavity and is connected to the projection host for communication; the light-incoming side of the camera component faces the light-transmitting window.

[0013] The beneficial effect of the present application is that in the correction component, the camera can capture the image of the projection picture and the image of the projection screen, and transmit the image data to the projection host. Therefore, when the projection picture exceeds the boundary of the projection screen, the projection picture can be automatically corrected into the screen, thereby maintaining a good display effect and ensuring the user experience.

[0014] In a possible implementation, a plurality of imaging devices are provided, and among the plurality of imaging devices, at least two imaging devices have different imaging ranges.

[0015] In this way, multiple cameras cooperate with each other to capture images within a larger field of view to obtain images of the complete projection picture and the projection screen.

[0016] In one possible implementation, the multiple camera elements include at least a first camera element and a second camera element, and the first camera element and the second camera element are arranged along a first direction in the accommodating cavity; the light-transmitting window has a first side and a second side that are relatively arranged along the first direction, the first camera element is arranged close to the first side, and the second camera element is arranged close to the second side; the light-incoming side of the first camera element faces the second side, and the light-incoming side of the second camera element faces the first side.

[0017] In this way, the first camera element and the second camera element are respectively oriented toward different sides of the light-transmitting window, which can expand the overall shooting range and further ensure that the correction component can obtain images of all projection images and images of the projection screen.

[0018] In a possible implementation manner, the first camera element and the second camera element are symmetrically arranged, and a symmetry plane between the first camera element and the second camera element is perpendicular to the first direction.

[0019] In this way, after the first camera element and the second camera element are symmetrically arranged, it is convenient to install the first camera element and the second camera element. At the same time, the image data obtained by the camera elements is also easier to process.

[0020] In a possible implementation, the projection device further includes a support member, which is mounted on the protective member and located in the accommodating cavity; a mounting surface is provided on the support member, and the camera element is mounted on the mounting surface.

[0021] In this way, the mounting surface on the supporting member can support the imaging member, thereby facilitating the mounting of the imaging member.

[0022] In a possible implementation, a plurality of support members are provided, and a camera member is mounted on a mounting surface of each support member;

[0023] The light-incoming side of each camera element is oriented perpendicular to the corresponding mounting surface; and / or, a plurality of support members are rotatably mounted on the protective member, and the rotation axes of the plurality of support members are arranged parallel to each other.

[0024] In this way, by adjusting the position of the mounting surface, the direction of the light-incoming side of each camera element can be adjusted, thereby ensuring that a plurality of cameras that cooperate with each other can capture the image of the complete projection picture and the image of the projection screen.

[0025] In a possible implementation, the correction component is installed on the top of the housing and is located on one side of an edge of the housing.

[0026] In this way, the correction component will not affect the integrity of the overall structure of the projection host and normal projection.

[0027] In a possible implementation manner, the protective element is bonded to the housing.

[0028] This makes it easier to connect the calibration component to the projection host.

[0029] In a possible implementation, the protective member includes a first shell and a second shell that are detachably connected, and the first shell and the second shell are arranged to form a receiving cavity; the first shell is connected to the outer shell, and the light-transmitting window is arranged on the second shell.

[0030] In this way, the first shell and the second shell cooperate with each other to form a receiving cavity, thereby protecting the camera element in the receiving cavity.

[0031] In a possible implementation manner, the light-transmitting window is a rectangular window.

[0032] In this way, the rectangular window can expose more of the camera element, thereby expanding the shooting range of the camera element.

[0033] In a possible implementation, the correction component further includes a light-transmitting member, which is mounted on the protective member and blocks the light-transmitting window.

[0034] In this way, the light-transmitting element can play a role of transmitting light, making it easier for light to be received by the camera element after passing through the light-transmitting element.

[0035] The second aspect of the present application provides a projection device, comprising:

[0036] A projection host, used for providing a housing;

[0037] A correction assembly for mounting on the housing;

[0038] The correction component is used to provide protective parts and camera parts;

[0039] The protective member is used to provide a light-transmitting window facing the same direction as the projection direction of the projection host, and the light-transmitting window is used to communicate with the accommodating cavity inside the protective member;

[0040] The camera element is used to be arranged in the accommodating cavity and is used to communicate with the projection host; the light-incoming side of the camera element is used to face the light-transmitting window.

[0041] A third aspect of the present application provides a projection system, comprising a projection screen and a projection device in any of the above implementations, wherein the projection device is used to project a projection picture onto the projection screen.

[0042] In the projection device provided by the present application, the camera element can capture the image of the projection picture and the image of the projection screen through the light-transmitting window, and transmit the image data to the projection host, and the processor in the projection host can process the image data; thus, when the projection picture exceeds the boundary of the projection screen, the projection host can adjust the position of the projection picture on the projection screen according to the processing result, and realize the automatic correction of the projection picture into the screen, so as to maintain a good display effect and ensure the user's experience. In addition, when the camera element includes a first camera element and a second camera element, the first camera element and the second camera element are respectively facing different sides of the light-transmitting window, so as to expand the overall shooting range of the camera element, so as to be able to correct the projection picture more accurately.

[0043] The structure of the present application and its other inventive objectives and beneficial effects will be more clearly understood through the description of the specific implementation methods in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0045] Figure 1 A stereogram of a projection device in the prior art;

[0046] Figure 2 A three-dimensional diagram of a projection device provided in an embodiment of the present application;

[0047] Figure 3 A three-dimensional diagram of a calibration component provided in an embodiment of the present application;

[0048] Figure 4 An exploded view of a correction component provided in an embodiment of the present application;

[0049] Figure 5 A view of the installation of a support member on a first housing in a correction assembly provided in an embodiment of the present application;

[0050] Figure 6 An exploded view of the support member and the first camera member provided in an embodiment of the present application;

[0051] Figure 7 An exploded view of the support member and the second camera member provided in an embodiment of the present application;

[0052] Figure 8 An exploded view of the first housing and the light-transmitting member provided in an embodiment of the present application;

[0053] Fig. 9 An exploded view of the first shell and the second shell provided in an embodiment of the present application;

[0054] Fig.10 A schematic diagram of the projection device provided in an embodiment of the present application when projecting onto a projection screen.

[0055] Description of reference numerals:

[0056] 100-projection host; 110-housing;

[0057] 120-projection lens; 200-correction component;

[0058] 210-protective member; 210A-first housing;

[0059] 210B-second housing; 211-accommodating cavity;

[0060] 212-light-transmitting window; 212A-first side;

[0061] 212B-second side; 220-camera;

[0062] 220A-first camera; 220B-second camera;

[0063] 221-light-incoming side; 222-light-incoming direction;

[0064] 230-support member; 231-mounting surface;

[0065] 240-light-transmitting member; 250-clip assembly;

[0066] 251-card slot; 252-card insertion piece;

[0067] 300-projection screen; 400-laser beam. DETAILED DESCRIPTION

[0068] When the laser projection device is in use, the projection image can be projected onto the projection screen, and during the projection process, the position between the laser beam emitted by the optical engine in the laser projection device and the projection screen needs to be strictly aligned, so as to ensure that the projection image does not exceed the projection screen. However, during use, if the user accidentally moves the projection device, the image projected by the projection device may exceed the projection screen, resulting in poor display effect of the projection image and affecting the customer's experience.

[0069] Based on the above problems, the embodiments of the present application provide a projection device and a projection system, wherein the projection system has a projection system, the projection device includes a projection host and a correction component, and the correction component is installed on the housing of the projection host; wherein the correction component includes a protective member and a camera member, the protective member has a receiving cavity inside, a light-transmitting window is provided on the protective member, the light-transmitting window is connected to the receiving cavity, and the direction of the light-transmitting window is consistent with the projection direction of the projection host; the camera member is arranged in the receiving cavity, the camera member is connected to the projection host in communication; the light-incoming side of the camera member faces the light-transmitting window. The camera member can capture the image of the projection picture and the image of the projection screen, and transmit the image data to the projection host, so that when the projection picture exceeds the boundary of the projection screen, the projection picture can be automatically corrected into the screen, thereby maintaining a good display effect and ensuring the user experience.

[0070] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. The technical scheme of the present application and how the technical scheme of the present application solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

[0071] The following combination Figures 1 to 10 , the structure of the projection device and the projection system provided in the embodiments of the present application are described in detail.

[0072] The projection device provided in the embodiment of the present application includes:

[0073] like Figures 2 to 7 As shown, the projection device provided by the present application includes:

[0074] The projection host 100 has a housing 110. It should be noted that the housing 110 has a cavity inside, and various optical components of the projection host 100 are located in the cavity, and the laser beam 400 can be transmitted between these optical components; in addition, the projection lens 120 of the projection host 100 is exposed on the surface of the housing 110, and the laser beam 400 can eventually pass through the projection lens 120 and be projected onto the projection screen 300.

[0075] The correction component 200 is installed on the housing 110 , and the housing 110 can support the correction component 200 .

[0076] Specifically, the calibration component 200 includes:

[0077] The protective member 210 has a receiving cavity 211 inside, and the protective member 210 can protect the object in the receiving cavity 211; the protective member 210 is provided with a light-transmitting window 212, which is in communication with the receiving cavity 211, and the direction of the light-transmitting window 212 is consistent with the projection direction of the projection host 100, so that light can enter the receiving cavity 211 through the light-transmitting window 212. It should be noted that the direction of the light-transmitting window 212 refers to the direction perpendicular to the opening surface of the light-transmitting window 212, and the projection direction of the projection host 100 refers to the direction in which the laser beam 400 used to form the projection picture is emitted from the projection lens 120.

[0078] The camera 220 is arranged in the accommodating cavity 211, and the camera 220 is connected to the projection host 100 in communication; the light-incoming side 221 of the camera 220 faces the light-transmitting window 212. Therefore, when the projection image of the projection host 100 is projected onto the projection screen 300, since the direction of the light-transmitting window 212 is consistent with the projection direction of the projection host 100, the image of the projection image and the image of the projection screen can enter the accommodating cavity 211 through the light-transmitting window 212 and be received by the camera 220. In addition, since the camera 220 is connected to the projection host 100 in communication, the camera 220 can transmit the image data obtained by shooting to the projection host 100, the processor in the projection host 100 can process the image data, and the projection host 100 can adjust the position of the projection image on the projection screen 300 according to the processing result.

[0079] Thus, in the projection device provided by the present application, the camera 220 can capture the image of the projection picture and the image of the projection screen along the direction of the light-transmitting window 212, and transmit the image data to the projection host 100, and the processor in the projection host 100 can process the image data; thus, when the projection picture exceeds the boundary of the projection screen 300, the projection host 100 can adjust the position of the projection picture on the projection screen 300 according to the processing result, and realize automatic correction of the projection picture into the screen, thereby maintaining a good display effect and ensuring the user experience.

[0080] Specifically, the camera 220 of the correction component 200 may be a camera, and the camera 220 may be connected to the USB interface on the projection host 100 by wire through the Type-C interface, or the camera 220 may be connected to the projection host 100 wirelessly through Bluetooth or the like. When the projection device is in use, the camera 220 will shoot the projection image on the projection screen 300 and transmit the image data to the projection host 100. The built-in algorithm in the processor of the projection host 100 will process the image data and pick up the corner position of the projection screen 300, and finally complete the automatic correction of the projection image into the screen.

[0081] In the embodiment of the present application, a plurality of cameras 220 are provided, and among the plurality of cameras 220, the imaging ranges of at least two cameras 220 are different. When the imaging ranges of at least two cameras 220 are different, the plurality of cameras 220 cooperate with each other to capture images within a larger field of view, so as to obtain the image of the complete projection picture and the image of the projection screen. It should be noted that the imaging ranges of the plurality of cameras 220 are different, which means that there are differences in the areas captured by different cameras 220, and such differences may be caused by different parameter settings of different cameras 220, or may be caused by different positions of the light-entering sides 221 of different cameras 220 facing the light-transmitting window 212.

[0082] Specifically, Figures 4 to 7 As shown, the plurality of camera elements 220 at least include a first camera element 220A and a second camera element 220B, wherein the first camera element 220A and the second camera element 220B are arranged in the accommodating cavity 211 along the first direction; and the light-transmitting window 212 has a first side 212A and a second side 212B arranged opposite to each other along the first direction, the first camera element 220A is arranged close to the first side 212A, and the second camera element 220B is arranged close to the second side 212B; the light-incoming side 221 of the first camera element 220A faces the second side 212B, and the light-incoming side 221 of the second camera element 220B faces the first side 212A. Specifically, refer to Figure 4 , the first side 212A is located on the left side of the light-transmitting window 212, and the second side 212B is located on the right side of the light-transmitting window 212; the first camera 220A is arranged near the left side of the light-transmitting window 212, and the second camera 220B is arranged near the right side of the light-transmitting window 212; the light-incoming side 221 of the first camera 220A faces the right side of the light-transmitting window 212, and the light-incoming side 221 of the second camera 220B faces the left side of the light-transmitting window 212. In this arrangement, the first camera 220A and the second camera 220B face different sides of the light-transmitting window 212, respectively, which can expand the overall shooting range of the correction component 200, further ensure that the correction component 200 can obtain the images of all the projection pictures and the images of the projection screen, so that the projection pictures can be corrected more accurately.

[0083] Specifically, Figure 3 and Figure 4 As shown, the first direction is perpendicular to the direction of the light-transmitting window 212, and the first direction is parallel to the X-axis direction in the figure. In addition, when determining the specific direction angle of the light-incoming side 221 of the first camera 220A and the second camera 220B, the angle can be obtained by reverse reconstruction, thereby ensuring that the multiple cameras 220 in the correction component 200 can capture all projection images and all projection screen images, thereby facilitating the automatic correction of the projection image into the screen.

[0084] Specifically, the first camera 220A and the second camera 220B are symmetrically arranged, and the symmetry planes of the first camera 220A and the second camera 220B are perpendicular to the first direction. In this way, the first camera 220A and the second camera 220B are symmetrically arranged, which facilitates the installation of the first camera 220A and the second camera 220B; at the same time, the image data obtained by the camera 220 is also simpler, thereby simplifying the processing process of the image data by the processor in the projection host 100, thereby improving the correction effect. The first camera 220A and the second camera 220B are cameras.

[0085] In the embodiments of the present application, Figure 4 and Figure 5 As shown, the projection device further includes a support member 230, which is mounted on the protective member 210 and is located in the accommodating cavity 211; Figure 6 and Figure 7 As shown, the support member 230 is provided with a mounting surface 231, and the camera 220 is mounted on the mounting surface 231 of the support member 230. In this way, the presence of the mounting surface 231 on the support member 230 can support the camera 220, facilitating the installation of the camera 220. Specifically, the support member 230 can be a support frame, and the camera 220 can be fixedly connected to the support surface by screws.

[0086] Specifically, there are a plurality of support members 230, and a camera 220 is mounted on the mounting surface 231 of each support member 230; the light-incoming side 221 of each camera 220 is oriented perpendicular to the corresponding mounting surface 231. Figure 6 and Figure 7 As shown in the figure, the light-incoming direction 222 of the light-incoming side 221 of each camera 220 is shown, and the light-incoming direction 222 is consistent with the direction of the light-incoming side 221. In this way, by adjusting the position of the mounting surface 231, the direction of the light-incoming side 221 of each camera 220 can be adjusted, thereby ensuring that multiple cameras 220 that cooperate with each other can capture the image of the complete projection picture and the image of the projection screen. In addition, Figure 6 and Figure 7 As shown, each support member 230 is provided with a plurality of mounting surfaces 231 , and the plurality of mounting surfaces 231 are arranged flush with each other. Different mounting surfaces 231 on the same support member 230 can support different positions of the camera element 220 at the same time.

[0087] In addition, if Figure 5As shown, when there are multiple support members 230, the multiple support members 230 are rotatably mounted on the protective member 210, and the rotation axes of the multiple support members 230 are arranged parallel to each other. In this arrangement, by rotating the support member 230 on the protective member 210, it is convenient to adjust the position of the mounting surface 231 on the support member 230, and then the direction of the light-incoming side 221 of the camera 220 can be adjusted.

[0088] In the embodiments of the present application, Figure 2 As shown, the correction component 200 is installed on the top of the housing 110 and is located on one side of the edge of the housing 110. In this way, the correction component 200 will not affect the integrity of the entire structure of the projection host 100, nor will it affect the normal projection of the projection host 100; at the same time, the correction component 200 can also be adapted to projection hosts 100 of different models. In addition, the protective member 210 is bonded to the housing 110, so that the correction component 200 is easily connected to the projection host 100. Specifically, the protective member 210 and the housing 110 can be fixed by adhesive.

[0089] In the embodiments of the present application, Figure 3 and Figure 4 As shown, the protective member 210 includes a first shell 210A and a second shell 210B that are detachably connected, and the first shell 210A and the second shell 210B are arranged to form a receiving cavity 211; the first shell 210A is connected to the housing 110, and the light-transmitting window 212 is arranged on the second shell 210B. In this way, the first shell 210A and the second shell 210B cooperate with each other to form the receiving cavity 211, so as to protect the camera 220 in the receiving cavity 211. In addition, the support member 230 can be rotatably arranged on the first shell 210A.

[0090] Further, such as Fig. 9 As shown, the correction assembly 200 further includes a snap-in assembly 250, and the first housing 210A and the second housing 210B are detachably connected by the snap-in assembly 250; specifically, the snap-in assembly 250 includes a snap-in member 252 and a slot 251, the snap-in member 252 is arranged on the first housing 210A, and the slot 251 is arranged on the second housing 210B, and when the snap-in member 252 is snapped into the slot 251, a connection is formed between the first housing 210A and the second housing 210B. In addition, there are a plurality of snap-in members 252 and a plurality of slots 251, and when the first housing 210A and the second housing 210B are connected, the plurality of snap-in members 252 and the plurality of slots 251 are snap-connected in a one-to-one correspondence.

[0091] In the embodiments of the present application, Figure 3 and Figure 8As shown, the light-transmitting window 212 is a rectangular window, which can expose more of the camera 220, thereby expanding the shooting range of the camera 220. In addition, the long side of the rectangular window can be parallel to the first direction. Figure 3 and Figure 8 As shown, the correction component 200 further includes a light-transmitting member 240, which is mounted on the protective member 210 and blocks the light-transmitting window 212; thus, the light-transmitting member 240 can play a role of light transmission, so that light can be received by the camera 220 after passing through the light-transmitting member 240; at the same time, after the light-transmitting member 240 blocks the light-transmitting window 212, it can also protect the camera 220 in the accommodating cavity 211. Specifically, the light-transmitting member 240 can be made of acrylic material, which has good light-transmitting performance, thereby ensuring the light-transmitting performance of the light-transmitting member 240.

[0092] In addition, the present application also provides a projection device, including: a projection host 100 and a correction component 200, the projection host 100 is used to provide a housing 110, and the correction component 200 is used to be installed on the housing 110; and the correction component 200 is used to provide a protective member 210 and a camera 220; the protective member 210 is used to provide a light-transmitting window 212 facing the projection direction of the projection host 100, and the light-transmitting window 212 is used to communicate with the accommodating cavity 211 inside the protective member 210; the camera 220 is used to be arranged in the accommodating cavity 211 and used to communicate with the projection host 100; the light-incoming side 221 of the camera 220 is used to face the light-transmitting window 212. Figure 1 As shown, the figure shows a view of a projection device in the prior art. Compared with the projection device in the prior art, Figure 2 As shown, in the projection device of the present application, a correction component 200 is installed on the housing 110, so that the projected image can be automatically corrected onto the screen, thereby maintaining a good display effect.

[0093] On the basis of the above embodiments, the present application further provides a projection system, including a projection screen 300 and a projection device in any of the above embodiments, wherein the projection device is used to project a projection picture onto the projection screen 300 .

[0094] Specifically, Fig.10 As shown, the projection device includes a projection host 100 and a calibration component 200, wherein the calibration component 200 is mounted on a housing 110 of the projection host 100; meanwhile, a projection lens 120 is also disposed on the projection host 100, and the direction of the light-transmitting window 212 in the calibration component 200 is consistent with the projection direction of the projection lens 120. In addition, Fig.10, a scene diagram when the projection device projects on the projection screen 300 is shown. The projection screen 300 is located obliquely above the projection host 100. The projection screen 300 can be set on a flat mounting carrier such as a wall to ensure the flatness of the projection screen 300. The laser beam 400 reflected by the digital micromirror device can be directed to the projection lens 120, and the laser beam 400 directed to the projection lens 120 can pass through the projection lens 120 and form an image on the projection screen 300.

[0095] In the description of the present application, it should be understood that, in addition, the terms "including" and "having" and any variations thereof are intended to cover but not exclude inclusion. The orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or a communication connection. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0096] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

[0097] For ease of explanation, the above description has been made in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or limit the embodiments to the specific forms disclosed above. Based on the above teachings, various modifications and variations can be obtained. The selection and description of the above embodiments are intended to better explain the principles and practical applications, so that those skilled in the art can better use the embodiments and various different variations of the embodiments suitable for specific use considerations.

Claims

1. A projection device, characterized in that: include: A projection host having a housing; A correction component mounted on the housing; The correction component comprises: A protective member, wherein the protective member has an accommodating cavity inside, and a light-transmitting window is provided on the protective member, the light-transmitting window is communicated with the accommodating cavity, and the direction of the light-transmitting window is consistent with the projection direction of the projection host; A camera component is arranged in the accommodating cavity and is communicatively connected with the projection host; the light-incoming side of the camera component faces the light-transmitting window.

2. The projection device according to claim 1, characterized in that: There are multiple imaging devices, and among the multiple imaging devices, at least two of the imaging devices have different imaging ranges.

3. The projection device according to claim 2, characterized in that: The plurality of camera elements at least include a first camera element and a second camera element, and the first camera element and the second camera element are arranged in the accommodating cavity along a first direction; The light-transmitting window has a first side and a second side arranged opposite to each other along a first direction, the first camera element is arranged close to the first side, and the second camera element is arranged close to the second side; the light-incoming side of the first camera element faces the second side, and the light-incoming side of the second camera element faces the first side.

4. The projection device according to any one of claims 1 to 3, characterized in that: It also includes a support member, which is installed on the protective member and located in the accommodating cavity; a mounting surface is provided on the support member, and the camera is mounted on the mounting surface.

5. The projection device according to claim 4, characterized in that: There are a plurality of support members, and the camera member is mounted on the mounting surface of each support member; The light-incoming side of each of the camera elements is oriented perpendicular to the corresponding mounting surface; and / or, a plurality of the support members are rotatably mounted on the protective member, and the rotation axes of the plurality of the support members are arranged parallel to each other.

6. The projection device according to any one of claims 1 to 3, characterized in that: The protective element comprises a first shell and a second shell that are detachably connected, the first shell and the second shell are arranged to surround the accommodating cavity; the first shell is connected to the outer shell, and the light-transmitting window is arranged on the second shell; And / or, the correction component is installed on the top of the housing and is located on one side of the edge of the housing; And / or, the protective element is bonded to the housing.

7. The projection device according to any one of claims 1 to 3, characterized in that: The light-transmitting window is a rectangular window; And / or, the correction component further includes a light-transmitting member, wherein the light-transmitting member is mounted on the protective member, and the light-transmitting member blocks the light-transmitting window.

8. The projection device according to claim 3, characterized in that: The first camera element and the second camera element are symmetrically arranged, and a symmetry plane between the first camera element and the second camera element is perpendicular to the first direction.

9. A projection device, characterized in that: include: A projection host, used for providing a housing; A correction component, used for being mounted on the housing; The correction component is used to provide a protective component and a camera component; The protective member is used to provide a light-transmitting window facing the projection direction of the projection host, and the light-transmitting window is used to communicate with the accommodating cavity inside the protective member; The camera element is used to be arranged in the accommodating cavity and is used to communicate with the projection host; the light-incoming side of the camera element is used to face the light-transmitting window.

10. A projection system, characterized in that: It comprises a projection screen and the projection device according to any one of claims 1 to 9, wherein the projection device is used to project a projection picture onto the projection screen.

Images