CN106899839B - A kind of projector - Google Patents
A kind of projector Download PDFInfo
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- CN106899839B CN106899839B CN201710179566.9A CN201710179566A CN106899839B CN 106899839 B CN106899839 B CN 106899839B CN 201710179566 A CN201710179566 A CN 201710179566A CN 106899839 B CN106899839 B CN 106899839B
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- 230000006870 function Effects 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 description 6
- 239000000428 dust Substances 0.000 description 5
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000008447 perception Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
- H04N9/317—Convergence or focusing systems
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
- G08C23/04—Non-electrical signal transmission systems, e.g. optical systems using light waves, e.g. infrared
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
- H04N9/3173—Constructional details thereof wherein the projection device is specially adapted for enhanced portability
- H04N9/3176—Constructional details thereof wherein the projection device is specially adapted for enhanced portability wherein the projection device is incorporated in a camera
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection Apparatus (AREA)
Abstract
The invention discloses a kind of projectors, comprising: the side of ontology, the ontology is equipped with projection module, and, when the projector is in the first placement status in predetermined placement status, the projection module is projected on the supporting surface of the ontology, to form view field；When the projector is in the second placement status in predetermined placement status, the projection module is projected on the ontology face angled with the supporting surface, to form view field.The projector has a variety of projection modes, can project on the face of different angle under different placement statuses, and uses corresponding projection mode, while normal projection projector is had the characteristics that flexible multi-purpose.
Description
Technical Field
The invention relates to the field of projection equipment, in particular to a projector.
Background
The projector can only project to a projection plane under the common condition at present, for example, project to the projection screen of vertical setting, but can not be to vertical projection and can also project to the horizontal plane (for example, can also project to the wall and can also project to the desktop), in order to realize the projection to a plurality of faces, a reflecting mirror needs to be additionally arranged on the projector, and the reflecting mirror must still have high machining precision, so that the production cost is increased, and the method of using the reflecting mirror can cause the projection picture size to be small when projecting, the placement position of the projector is limited, and the user experience is poor.
Disclosure of Invention
The embodiment of the invention aims to provide a projector which can project to a vertical plane and a horizontal plane, can realize the corresponding function of a camera of the projector in a projection area, and has good projection effect and good user experience.
In order to solve the technical problem, the embodiment of the invention adopts the following technical scheme: a projector, comprising:
a body, a projection module is arranged on one side of the body, and
when the projector is in a first placing state of preset placing states, the projection module projects to the supporting surface of the body to form a projection area;
when the projector is in a second placing state of the preset placing states, the projection module projects to a surface of the body, which forms a certain angle with the supporting surface, so as to form a projection area.
Preferably, the body comprises a posture sensing device for sensing the posture of the body, and the projector adjusts the projection mode according to a posture signal sent by the posture sensing device.
Preferably, a groove is formed in one side of the body, the groove is wide-angle-type opening, the projection module is arranged in the groove, and the projection direction of the projection module is inclined to the opening direction of the groove.
Preferably, when the projectors are in different preset placing states, the light emitting directions of the projection modules relative to the body are the same.
Preferably, the projection module comprises an infrared camera and an RGB camera, the infrared camera and the RGB camera are arranged on the side wall of the groove, and the infrared camera generates a corresponding operation signal according to the information on the operation of the projection area so that the projector makes a corresponding response; the RGB camera is used for obtaining the operation of the projection area so as to enable the projection module to launch the virtual image.
Preferably, the body is further provided with an infrared emitter, infrared rays can be emitted from the projection area, and the infrared emitter is matched with the infrared camera to acquire information of operation on the projection area.
Preferably, the projector further comprises a remote controller connected with the body and operating the body, a placement part is arranged at the top of the projector in the first placement state, the remote controller is placed on the placement part, and the remote controller and the projector form a complete appearance surface.
The embodiment of the invention also provides a projection method, which comprises the following steps:
adjusting a projection mode of the projector according to the placement state of the projector; and is
When the projector is in a first placement state of preset placement states, the projection module projects onto a supporting surface of the projector to form a projection area;
when the projector is in a second placing state of the preset placing states, the projection module projects to a surface which forms a certain angle with the projector and the supporting surface to form a projection area.
Preferably, the adjusting the projection mode of the projector includes:
when the projector is sensed to be in the first placement state, adjusting the focal length of the projector to be a corresponding first focal length;
and when the projector is sensed to be in the second placement state, adjusting the focal length of the projector to be a corresponding second focal length.
Preferably, when it is sensed that the placement state of the projector changes from the first placement state to the second placement state or from the second placement state to the first placement state, the image projected on the projection area is rotated to adapt to the changed placement state.
The embodiment of the invention has the beneficial effects that: the projector has multiple projection modes, can project on surfaces with different angles in different placing states, uses the corresponding projection modes, and has the characteristic of flexibility and multiple purposes when in normal projection.
Drawings
Fig. 1 is a perspective view of a first placement state of a projector according to an embodiment of the present invention;
fig. 2 is a perspective view of a second placement state of the projector according to the embodiment of the invention;
FIG. 3 is a block diagram of one viewing angle of a projector according to an embodiment of the present invention;
FIG. 4 is a block diagram of another viewing angle of the projector according to the embodiment of the present invention;
FIG. 5 is a block diagram of a further viewing angle of the projector according to the embodiment of the present invention;
FIG. 6 is a flowchart of a projection method according to an embodiment of the invention.
Description of the reference numerals
1-body 2-projection region 3-shooting region
4-groove 5-camera 6-reflector
7-light source 8-infrared emitter 9-remote controller
Detailed Description
Various aspects and features of the present invention are described herein with reference to the drawings.
It will be understood that various modifications may be made to the embodiments of the invention herein. Accordingly, the foregoing description should not be construed as limiting, but merely as exemplifications of embodiments. Other modifications will occur to those skilled in the art which are within the scope and spirit of the invention.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with a general description of the invention given above, and the detailed description of the embodiments given below, serve to explain the principles of the invention.
These and other characteristics of the invention will become apparent from the following description of a preferred form of embodiment, given as a non-limiting example, with reference to the accompanying drawings.
It should also be understood that, although the invention has been described with reference to some specific examples, a person of skill in the art shall certainly be able to achieve many other equivalent forms of the invention, having the characteristics as set forth in the claims and hence all coming within the field of protection defined thereby.
The above and other aspects, features and advantages of the present invention will become more apparent in view of the following detailed description when taken in conjunction with the accompanying drawings.
Specific embodiments of the present invention are described hereinafter with reference to the accompanying drawings; however, it is to be understood that the disclosed embodiments are merely exemplary of the invention, which can be embodied in various forms. Well-known and/or repeated functions and constructions are not described in detail to avoid obscuring the invention in unnecessary or unnecessary detail. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present invention in virtually any appropriately detailed structure.
The specification may use the phrases "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," which may each refer to one or more of the same or different embodiments in accordance with the invention.
Example one
A projector according to an embodiment of the present invention, as shown in fig. 1 to 5, includes a main body 1, main components of the projector are disposed in the main body 1, the main body 1 may be configured in various forms, and in an embodiment, the main body 1 is configured in a cube and has a plurality of placing planes, and the projector may be placed on a supporting surface of the projector through the placing planes. As shown in fig. 1 and 2, a projection module is provided on one side of a body 1, and when the projector is in a first placement state of predetermined placement states, the projection module projects onto a support surface of the body 1 to form a projection area 2, for example, when the body 1 is configured to be rectangular parallelepiped, it is placed on the support surface through a side surface having a small area, and at this time, the placement state can be set as the first placement state of the projector, and the projection module projects onto the support surface to form a projection area 2 having a certain area, of course, the area of the projection area 2 can be adjusted by adjusting the structure of the body 1 or adjusting parameters of the projection module, for example, when the height of the body 1 in the first placement state is configured to be 135 mm, a projection area 2 having a diagonal line of 16 inches can be projected on the support surface, and the position of the projection area 2 can also be adjusted by adjusting parameters of the projection module, for example, the top of the picture displayed in the projection area 2 can be adjusted to 60 mm away from the main body 1;
when the projector is in a second placing state of the preset placing states, the projection module projects to a surface of the body 1, which forms a certain angle with the supporting surface, so as to form a projection area 2. For example, when the main body 1 is configured as a rectangular parallelepiped and is placed on a supporting surface through a side surface having a relatively large area, the placing state may be set as a second placing state of the projector, the projection module projects onto a surface having a certain angle (for example, projects onto a screen perpendicular to the supporting surface) to form a projection area 2 having a certain area, the area of the projection area 2 in the second placing state may also be adjusted by adjusting the structure of the main body 1 or adjusting parameters of the projection module, and if the length of the main body 1 in the second placing state is configured as 135 mm, the projection area 2 having a diagonal line of 50 inches may be projected onto the surface perpendicular to the supporting surface, wherein the distance from the main body 1 to the projection surface is 270 mm. It should be noted that, in an embodiment, the projection module may include a light source 7 and a plurality of cameras 5 with different functions, so as to implement the corresponding functions of the projection and the cameras 5, such as being able to track the operation on the projection area 2 and being able to send a corresponding signal to the projector, so that the projector may perform a corresponding reaction, for example, double-clicking on a certain icon in the projection area 2, and the projector may display the files in the corresponding folder through cooperation with other devices after acquiring the information. Therefore, the projector is flexible to use, and can meet the requirements of different application scenes while ensuring normal projection.
The body 1 also comprises a power supply module and a communication module, wherein the power supply module can provide electric energy for each functional component in the body 1, so that the projector can independently work; the communication module is used for being connected with an image source to acquire a picture to be projected, and the image source can be a mobile phone, a computer and other equipment which can provide images and can be connected with a projector.
The body 1 further comprises a storage unit which can store pictures to be projected.
The body 1 includes a posture sensing device (not shown in the figure) for sensing the posture thereof, and the projector adjusts the projection mode according to the posture signal sent by the posture sensing device. This gesture perception device can sense the plane of placing of body 1, and this gesture perception device can be for the gravity appearance in one embodiment, gyroscope or other sensors to can judge the gesture of body 1 according to gravity or other parameters. The difference of the projection modes can generate different projection effects in different predetermined placement states, for example, in different predetermined placement states (such as the first placement state and the second placement state), the different focal lengths are adjusted, the light sources 7 are adjusted to have different brightness, and corresponding projection effects (such as the change of the projection area 2 mentioned above) are generated while a clear picture is projected, so as to adapt to different requirements.
The structure and corresponding function of the projection module will be further described below, as shown in fig. 1 to 5, a groove 4 is provided on one side of the body 1, the groove 4 is a wide-angle opening, the projection module is provided in the groove 4, and the projection direction of the projection module is inclined to the opening direction of the groove 4. In one embodiment, the projection module comprises at least one camera 5 and a light source 7 with different functions, the camera 5 is arranged on a first side wall of the groove 4, the light source 7 is also arranged on the first side wall, the light source 7 projects an image in the projection area 2 in an inclined way to the opening direction of the groove 4, the shooting area 3 of the camera 5 is generally larger than the projection area 2, and is used for shooting the projection area 2 and capturing the operation of the projection area 2 to realize the corresponding function; in another embodiment, the projection module comprises at least one camera 5 and a light source 7 with different functions, the camera 5 is disposed on a first sidewall of the groove 4, the light source 7 is disposed on a second sidewall opposite to the first sidewall, a reflector 6 is disposed between the first sidewall and the second sidewall, the light source 7 emits light through the reflector 6 for projection, and the camera 5 also photographs the projection area 2 and captures an operation on the projection area 2 to realize the corresponding function. In addition, the wide-angle opening of the groove 4 ensures that there is no obstruction when shooting and shooting light, and the first and second side walls may be configured to be inclined to the groove bottom of the groove 4.
In one embodiment of the present invention, when the projectors are in different predetermined placement states, as shown in fig. 1, 2 and 4, the projection modules have the same exit direction of the projection light with respect to the body 1. Specifically, when the projector is in different predetermined placement states, the exit direction of the projection light of the projection module relative to the body 1 is not repeatedly adjusted, so that the exit direction of the projection light only changes with changes in the posture or position of the body 1, and the projector has considerable flexibility and ease of use.
In an embodiment of the present invention, as shown in fig. 3 and 4, the projection module includes an infrared camera 5 and an RGB camera 5, where the infrared camera 5 and the RGB camera 5 are both disposed on a side wall of the groove 4 and have the same or similar shooting area 3, and the infrared camera 5 generates a corresponding operation signal according to information of an operation on the projection area 2 to make the projector make a corresponding response, for example, the infrared camera 5 captures an operation on the projection area 2 by an infrared ray (for example, it detects that a gesture of a user is a double-click on an icon), and then generates a corresponding operation signal to send to the projector, and the projector itself or other devices can make a corresponding response (for example, open a file corresponding to the icon); the RGB camera 5 is configured to obtain an operation on the projection area 2, so that the projection module projects a virtual image, specifically, a corresponding signal may be generated and sent to the projector through the operation obtained by the RGB camera 5, the projector itself or in cooperation with other devices may project a virtual image in the projection area 2, for example, a user draws an image of an animal in the projection area 2, at this time, the RGB camera 5 captures the action and sends the signal to the projector, and the projector projects a virtual 3D image of the animal in the projection area 2 in cooperation with a computer.
In an embodiment of the present invention, as shown in fig. 1, 4 and 5, an infrared emitter 8 is further disposed on the body 1 (for example, the infrared emitter 8 may be disposed on a lower portion of the body 1 in the first placement state), and is capable of emitting infrared rays on the projection area 2 (for example, infrared rays may be emitted close to and parallel to a projection plane of the projection area 2), the infrared emitter 8 cooperates with the infrared camera 5 to obtain information about an operation on the projection area 2, for example, when a user touches a point of the projection area 2, the infrared ray of the point is triggered, the infrared camera 5 shoots the change, and the infrared camera 5 generates a corresponding signal and sends the corresponding signal to the projector.
As shown in fig. 1 to 5, the projector further includes a remote controller 9 connected to and operating the body 1, the remote controller 9 can remotely control the projector in a state where the projector is separated, a mounting place is provided on a top of the projector in a first placement state, the remote controller 9 is placed on the mounting place, and forms a complete appearance surface with the projector, and when the remote controller 9 is used, the remote controller can be taken down from the mounting place to be used remotely (for example, the remote controller 9 can be fixed in a suction or clamping manner when placed on the mounting place, and when the projector is used, the remote controller 9 can be separated from the body 1 by an external force).
In addition, the body 1 further comprises a wireless receiving device, and the wireless receiving device is wirelessly connected with the remote controller 9 to receive remote control signals sent by the remote controller 9.
The opening face of recess 4 covers and is equipped with the dust cover, places the dust and gets into recess 4 and damages projection module, and this dust cover and recess 4 be for dismantling to be connected, can take off the dust cover when using the projecting apparatus, can cover the dust cover and establish the opening at recess 4 when not using.
In one embodiment of the invention, the lens of the camera 5 is a fisheye lens to completely cover the picture in the projection area 2.
Example two
An embodiment of the present invention further provides a projection method, as shown in fig. 1, fig. 2, and fig. 6, including: the projection mode of the projector is adjusted according to the placement state of the projector, the projection mode enables the projector to have corresponding functions or achieve corresponding projection effects under one module, different projection modes can generate different projection effects under different placement states, for example, different focal lengths and different brightness of the light source 7 are adjusted under different preset placement states, and corresponding projection effects are generated while a clear picture is put in, so that different requirements are met; and is
When the projector is in a first placing state of the preset placing states, the projection module projects onto a supporting surface of the projector to form a projection area 2; in one embodiment, the projector is constructed as a cube having a plurality of resting planes by which the projector can be placed on a support surface of the projector. A projection module is provided on one side of the projector, and when the projector is in a first placement state of predetermined placement states, the projection module projects onto the support surface of the projector to form a projection area 2, for example, when the projector is configured in a rectangular parallelepiped shape, it is placed on the support surface through a side having a smaller area, and at this time, the placement state can be set as the first placement state of the projector, and the projection module projects onto the support surface to form a projection area 2 having a certain area, although the area of the projection area 2 can be adjusted by adjusting the structure of the projector or adjusting the parameters of the projection module, for example, when the height of the projector in the first placement state is configured to be 135 mm, a projection area 2 having a diagonal of 16 inches can be projected onto the support surface, and the position of the projection area 2 can also be adjusted by adjusting the parameters of the projection module, for example, the top of the picture displayed by the projection area 2 may be adjusted to 60 mm from the projector;
when the projector is in a second of the predetermined rest states, the projection module projects onto a surface at an angle to the support surface to form a projection area 2. For example, when the projector is configured in a rectangular parallelepiped shape, it is placed on the supporting surface through a side surface having a relatively large area, and the placement state can be set as a second placement state of the projector, and the projection module projects onto a surface having a certain angle (for example, projects onto a screen perpendicular to the supporting surface) to form a projection area 2 having a certain area, and the area of the projection area 2 in the second placement state can also be adjusted by adjusting the structure of the projector or adjusting parameters of the projection module, and if the length of the projector in the second placement state is configured to be 135 mm, it is possible to project a projection area 2 having a diagonal of 50 inches on the surface perpendicular to the supporting surface, wherein the projector is 270 mm from the projection surface. It should be noted that, in an embodiment, the projection module may include a light source 7 and a plurality of cameras 5 with different functions, so as to implement the corresponding functions of the projection and the cameras 5, such as being able to track the operation on the projection area 2 and being able to send a corresponding signal to the projector, so that the projector may perform a corresponding reaction, for example, double-clicking on a certain icon in the projection area 2, and the projector may display the files in the corresponding folder through cooperation with other devices after acquiring the information. Therefore, the projection method enables the projection mode to be flexible, and can meet the requirements of different application scenes while ensuring normal projection.
Adjusting a projection mode of the projector includes: when the projector is sensed to be in the first placement state, adjusting the focal length of the projector to be a corresponding first focal length; and when the projector is sensed to be in the second placement state, adjusting the focal length of the projector to be the corresponding second focal length. It should be noted that the focal length is a measure for measuring the light convergence or divergence in the optical system, and refers to the distance from the optical center of the lens to the focal point of the light convergence when parallel light is incident, and simply the distance from the focal point to the central point of the mirror, and the focal length needs to be adjusted when the projector is in different placement states to adapt to different requirements, in one embodiment, when the projector is changed from the first placement state to the second placement state, the focal length is increased, i.e. the second focal length is greater than the first focal length (e.g. the second focal length is 6.7mm, and the first focal length is 6.5mm)
When the fact that the placement state of the projector is changed from the first placement state to the second placement state or from the second placement state to the first placement state is sensed, the image projected on the projection area 2 is rotated to adapt to the changed placement state. As shown in fig. 1 and fig. 2, for example, in the first placement state, the top of the image in the projection area 2 is close to the projector, and the bottom of the image is far away from the projector, so that the user can clearly and completely view the projected image, when the projector changes from the first placement state to the second placement state, the top of the image in the projection area 2 needs to be far away from the projector, so as to enable the top of the image to be located on the upper portion of the projection surface (e.g., vertical projection surface), and the bottom of the image is located on the lower portion of the projection surface (e.g., vertical projection surface), so that the image projected on the projection area 2 needs to be rotated to adapt to the new placement state, so that the user can normally view the image in the projection area 2.
The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present invention, and such modifications and equivalents should also be considered as falling within the scope of the present invention.
Claims (9)
1. A projector, comprising:
a body, a projection module is arranged on one side of the body, and
when the projector is in a first placing state of preset placing states, the projection module projects to the supporting surface of the body to form a projection area;
when the projector is in a second placing state of the preset placing states, the projection module projects to a surface of the body, which forms a certain angle with the supporting surface, so as to form a projection area; wherein,
a groove is formed in one side of the body, the groove is a wide-angle opening, the projection module is arranged in the groove, and the projection direction of the projection module is inclined to the opening direction of the groove;
the projection module comprises at least one camera, and the camera is arranged on the first side wall of the groove and used for shooting a projection area and capturing the operation on the projection area so as to realize corresponding functions.
2. The projector according to claim 1, wherein the body includes a posture sensing device for sensing a posture thereof, and the projector adjusts the projection mode according to a posture signal transmitted from the posture sensing device.
3. The projector according to claim 1, wherein the projection modules have the same light emitting direction with respect to the body when the projector is in different predetermined placement states.
4. The projector according to claim 1, wherein the projection module comprises an infrared camera and an RGB camera, the infrared camera and the RGB camera are disposed on a sidewall of the groove, and the infrared camera generates a corresponding operation signal according to the information on the operation of the projection area to make the projector respond correspondingly; the RGB camera is used for obtaining the operation of the projection area so as to enable the projection module to launch the virtual image.
5. The projector according to claim 4, wherein the body further comprises an infrared emitter, the infrared emitter can emit infrared rays in the projection area, and the infrared emitter cooperates with the infrared camera to obtain information about the operation of the projection area.
6. The projector according to claim 1, further comprising a remote controller connected to and operating the body, wherein a placement is provided on a top of the projector in the first placement state, the remote controller is placed on the placement, and the remote controller and the projector form a complete appearance surface.
7. A method of projection, comprising:
adjusting a projection mode of the projector according to the placement state of the projector; and is
When the projector is in a first placement state of preset placement states, a projection module of the projector projects onto a supporting surface of the projector to form a projection area;
when the projector is in a second placing state of the preset placing states, the projection module projects onto a surface which forms a certain angle with the projector and the supporting surface to form a projection area; wherein,
a groove is formed in one side of the projector, the groove is a wide-angle opening, the projection module is arranged in the groove, and the projection direction of the projection module is inclined to the opening direction of the groove; the projection module comprises at least one camera, and the camera is arranged on the first side wall of the groove and used for shooting a projection area and capturing the operation on the projection area so as to realize corresponding functions.
8. The method of claim 7, adjusting the projection mode of the projector comprising:
when the projector is sensed to be in the first placement state, adjusting the focal length of the projector to be a corresponding first focal length;
and when the projector is sensed to be in the second placement state, adjusting the focal length of the projector to be a corresponding second focal length.
9. The method as claimed in claim 7, wherein when it is sensed that the placement state of the projector changes from the first placement state to the second placement state or from the second placement state to the first placement state, the image projected on the projection area is rotated to adapt to the changed placement state.
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| CN201710179566.9A CN106899839B (en) | 2017-03-23 | 2017-03-23 | A kind of projector |
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| CN109005395A (en) * | 2018-09-21 | 2018-12-14 | 联想(北京)有限公司 | A kind of electronic equipment |
| CN110418122A (en) * | 2019-07-25 | 2019-11-05 | 上海易视计算机科技股份有限公司 | A kind of control method, device, equipment and the storage medium of touch projection instrument |
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| CN202275333U (en) * | 2011-09-23 | 2012-06-13 | 鸿富锦精密工业（深圳）有限公司 | Portable electric device with projective function |
| CN202693984U (en) * | 2012-05-25 | 2013-01-23 | 深圳市众进思创科技开发有限公司 | Mini-type projector capable of automatically adjusting projection direction |
| CN103941528A (en) * | 2013-01-18 | 2014-07-23 | 联想(北京)有限公司 | Mode switching method and electronic device |
| CN103353704A (en) * | 2013-06-25 | 2013-10-16 | 深圳市安华光电技术有限公司 | Projector having direct projection mode and reflecting projection mode |
| CN104423419A (en) * | 2013-08-19 | 2015-03-18 | 联想(北京)有限公司 | Electronic equipment |
| CN104679112A (en) * | 2013-11-28 | 2015-06-03 | 联想(北京)有限公司 | Electronic equipment |
| CN104866013A (en) * | 2014-02-24 | 2015-08-26 | 联想(北京)有限公司 | Electronic equipment |
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|---|---|
| CN106899839A (en) | 2017-06-27 |
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