CN211239928U - TOF camera and electronic device - Google Patents
TOF camera and electronic device Download PDFInfo
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- CN211239928U CN211239928U CN201922194307.0U CN201922194307U CN211239928U CN 211239928 U CN211239928 U CN 211239928U CN 201922194307 U CN201922194307 U CN 201922194307U CN 211239928 U CN211239928 U CN 211239928U
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Abstract
The application provides a TOF camera and electronic equipment, wherein, the TOF camera includes: the optical lens module comprises a light emitting module, a lens module, a reflector, a rotating module and an image processing module. The rotating module drives the reflector to rotate. The image processing module receives the images collected by the lens module for splicing, and obtains complete images of the shot objects. The minimum distance between the area boundary of the reflecting surface in the field range of the lens module and the edge of the reflecting piece is not less than 0.2 mm. According to the TOF camera, the reflecting piece reflects natural light and modulated light into the lens module for multiple times, and images are not processed by other processing, so that pixels of single partial images of a shot object are high; in addition, the distance between the area boundary of the reflecting surface in the field range of the lens module and the edge of the reflecting surface is not less than 0.2mm, so that the reflecting piece can be ensured to fully reflect natural light and modulated light, and the quality of images formed by the lens module is ensured.
Description
Technical Field
The application relates to the technical field of electronics, and specifically relates to a TOF camera and an electronic device with the TOF camera.
Background
The statements in this application as background to the related art related to this application are merely provided to illustrate and facilitate an understanding of the contents of the present application and are not to be construed as an admission that the applicant expressly or putatively admitted the prior art of the filing date of the present application at the first filing date.
The TOF (Time of flight, Time of flight ranging) module in the current market comprises a sending module and a receiving module, wherein the sending module outputs uniform light spot images, and the receiving module receives light reflected by a shot object to produce an image with three-dimensional data. However, the pixels of the current photosensors are only VGA-level and the pixels generating the image are low.
SUMMERY OF THE UTILITY MODEL
An embodiment of a first aspect of the present application provides a TOF camera, including: the light emitting module is used for emitting modulated light; the lens module is used for receiving natural light reflected by a shot object and modulated light which is emitted by the light emitting module and returns by the shot object; a reflector having a reflective surface, the reflector reflecting the natural light and the modulation to enter the lens module; the rotating module is connected with the reflecting piece and used for driving the reflecting piece to rotate; the image processing module is connected with the lens module and is used for splicing the natural light and the modulated light received by the lens module to obtain a complete image of a shot object; wherein a minimum distance between a zone boundary of the reflective surface within a field of view of the lens assembly and a circumferential edge of the reflective surface is greater than or equal to 0.2 mm.
According to the TOF camera, the reflection piece rapidly adjusts the reflection angle through the rotating module, so that natural light and modulated light reflected by a shot object are reflected for multiple times and enter the lens module at different angles, images of all parts of the shot object are formed through processing of the lens module, namely, the images of the shot object are divided into a plurality of parts through reflection of the reflection piece and are sent to the image processing module, and the images of all parts of the shot object are spliced into a complete image of the shot object by the image processing module; the reflecting piece reflects the natural light and the modulated light for multiple times to enter the lens module at different angles, and the image is not processed, so that the pixel of a single partial image of the shot object is higher, and the image spliced into a complete shot object has higher pixels; in addition, the minimum distance between the area edges of the reflecting surface in the view field range of the lens assembly is greater than or equal to 0.2mm, so that the reflecting piece can be ensured to fully reflect natural light and modulated light, the phenomenon that the edges of the reflecting surface influence the natural light and the modulated light to cause the image edge formed after the natural light and the modulated light enter the lens module to be distorted is avoided, the quality of the image formed by the lens module is ensured, and the quality of the image of a complete shot object spliced by the image processing module is ensured.
Optionally, the reflector has an initial position, and when the reflector is at the initial position, a distance between a lens surface of the lens module and the reflection surface in the optical axis direction of the lens module is 2mm to 15 mm.
In this embodiment, on one hand, if the distance between the lens surface of the lens module and the reflective surface in the optical axis direction of the lens module is less than 2mm, the distance between the lens module and the reflective element is too small, and the reflective element is likely to interfere with the lens module during the rotation process, so that the reflective element cannot completely reflect natural light and modulated light, and the image spliced by the image processing module is incomplete; on the other hand, if the distance between the lens surface of the lens module and the reflecting surface in the optical axis direction of the lens module is larger than 15mm, the area of the reflecting surface is too large, so that the volume of the reflecting piece is too large, the space occupied by the reflecting piece is increased, and the space utilization rate is reduced; therefore, the distance between the lens surface of the lens module and the reflecting surface in the optical axis direction of the lens module is within 2 mm-15 mm, on one hand, the effect of shooting images by the TOF camera can be guaranteed, on the other hand, the TOF camera is enabled to have a smaller size, and therefore the space occupied by the TOF camera is reduced.
Optionally, a distance between a lens surface of the lens module and the reflection surface in the optical axis direction of the lens module is 7 mm.
In this embodiment, the distance between the lens surface of the lens module and the reflecting surface in the optical axis direction of the lens module is 7mm, on one hand, the effect of taking images by the TOF camera can be guaranteed, and on the other hand, the TOF camera is enabled to have a smaller size, so that the space occupied by the TOF camera is reduced.
Optionally, when the reflector is in the initial position, an inclination angle of the reflecting surface with respect to an optical axis of the lens module is 30 ° to 60 °, and the horizontal plane is perpendicular to the surface of the lens.
In the embodiment, the inclination angle of the reflecting surface determines the reflecting angle of the reflecting surface, and the reflecting angle of the reflecting surface can be flexibly adjusted by setting the inclination angle of the reflecting surface; the inclination angle of the reflecting surface is within 30-60 degrees, so that the reflecting piece can be ensured to fully reflect the natural light and the modulated light reflected by the shot object for multiple times and then enter the lens module.
Optionally, the angle of inclination is 45 °.
In this embodiment, the inclination angle of the reflection surface is 45 °, which can ensure that the reflection member can sufficiently reflect the natural light and the modulated light reflected by the photographed object into the lens module for multiple times.
Optionally, the rotation module comprises: the mounting frame is used for fixing the reflecting piece; the first rotator is connected with the mounting frame and used for driving the reflecting piece to rotate around a first axial direction; the second rotator is connected with the reflecting piece and used for driving the mounting frame to rotate around a second axial direction; when the reflector is at an initial position, the first axis is positioned in a first plane and is vertical to the optical axis, and the second axis is simultaneously vertical to the first axis and the optical axis; the first plane is perpendicular to the reflection surface, and the optical axis is located in the first plane.
In the embodiment, the first rotator adjusts the reflection angle of the reflection surface of the reflection piece in the first direction, the second rotator adjusts the reflection angle of the reflection surface of the reflection piece in the second direction, the reflection piece can reflect the natural light and the modulated light reflected by the shot object for multiple times through the matching of the first rotator and the second rotator, the images of all parts of the shot object are formed through the processing of the lens module and are sent to the image processing module, and the image processing module splices the images of all parts of the shot object into a complete image of the shot object.
Optionally, the rotation angle of the reflector element from the initial position around the first axis in clockwise or counterclockwise rotation is less than 15 °, and/or the rotation angle of the reflector element from the initial position around the second axis in clockwise or counterclockwise rotation is less than 15 °.
In this embodiment, if the rotation angle of the reflector rotating clockwise or counterclockwise around the first axis from the initial position is greater than 15 °, the distance of the reflector rotating in the first direction is too large, and the reflection surface reflects more light that is not reflected by the photographed object, so that on one hand, the utilization rate of the reflection surface is reduced, and the waste of resources is caused, and on the other hand, more images of the non-photographed object in the first direction in the finally spliced complete images affect the final imaging effect; therefore, the rotating angle of the reflector rotating clockwise or anticlockwise around the first shaft from the initial position is smaller than 15 degrees, on one hand, the reflector can fully reflect natural light and modulated light of a shot object into the lens module for multiple times in the first direction to form a complete image of the shot object, on the other hand, the utilization rate of the reflecting surface is improved, and the number of images of non-shot objects in the first direction in the finally spliced complete image is small. Similarly, if the rotating angle of the reflector rotating clockwise or counterclockwise around the second axis from the initial position is greater than 15 degrees, the rotating distance of the reflector in the second direction is too large, and the reflecting surface reflects more light which is not reflected by the shot object, so that on one hand, the utilization rate of the reflecting surface is reduced, and the waste of resources is caused, and on the other hand, more images of the shot object in the second direction in the finally spliced complete image influence the final imaging effect; therefore, the rotating angle of the reflector rotating clockwise or anticlockwise around the second shaft from the initial position is smaller than 15 degrees, on one hand, the reflector can fully reflect natural light and modulated light of a shot object into the lens module for multiple times in the second direction to form a complete image of the shot object, on the other hand, the utilization rate of the reflecting surface is improved, and the number of images of objects which are not shot in the second direction in the finally spliced complete image is small.
Optionally, the rotation angle of the reflection element from the initial position around the first axis in clockwise or counterclockwise rotation is 7 °, and/or the rotation angle of the reflection element from the initial position around the second axis in clockwise or counterclockwise rotation is 7 °.
In the embodiment, the rotating angle of the reflector rotating clockwise or anticlockwise around the first axis from the initial position is 7 degrees, on one hand, the reflector can fully reflect natural light and modulated light of a shot object into the lens module for multiple times in the first direction to form a complete image of the shot object, on the other hand, the utilization rate of the reflecting surface is improved, and the number of images of objects which are not shot in the first direction in the finally spliced complete image is reduced. In a similar way, the reflector rotates clockwise or anticlockwise to 7 degrees from the initial position around the second shaft, on one hand, the reflector can fully reflect natural light and modulated light of a shot object into the lens module for multiple times in the second direction to form a complete image of the shot object, on the other hand, the utilization rate of the reflecting surface is improved, and the number of images of non-shot objects in the second direction in the finally spliced complete image is reduced.
Optionally, the reflecting member comprises a mirror or a total reflection prism.
In the embodiment, the reflector has a simple structure and a small volume, and the volume of the TOF camera can be reduced; the total reflection prism has high mechanical strength, low damage probability and high use reliability, so that the service life of the product is prolonged.
An embodiment of a second aspect of the present application provides an electronic device, including: a housing; and a TOF camera as in any above, the TOF camera mounted on the housing.
The application provides an electronic equipment, simple structure, the definition of output image is high to the use comfort of product has been improved, and then the market competition of product has been reduced.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Additional aspects and advantages of the present application will be set forth in part in the description which follows, or may be learned by practice of the present application.
Drawings
The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a block diagram of a TOF camera according to the present application;
FIG. 2 is a schematic view of a partial structure of a first embodiment of a TOF camera according to the present application;
FIG. 3 is a schematic partial structural view of a first embodiment of a rotation module according to the present application;
FIG. 4 is a schematic view of a partial structure of a second embodiment of a TOF camera according to the present application;
FIG. 5 is a schematic partial structural view of a second embodiment of a rotation module according to the present application;
fig. 6 is a schematic view of a partial structure of an electronic device according to the present application.
Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 6 is:
the TOF camera 100, the light emitting module 10, the lens module 20, the reflector 30, the reflecting surface 31, the reflector 32, the total reflection prism 33, the rotating module 40, the mounting frame 41, the first rotator 42, the second rotator 43, the image processing module 50, the photographed object 60, the electronic device 200, the housing 201, and the display screen 202.
Detailed Description
In order that the above objects, features and advantages of the present application can be more clearly understood, the present application will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.
The following discussion provides a number of embodiments of the application. While each embodiment represents a single combination of applications, the various embodiments of the disclosure may be substituted or combined in any combination, and thus, the disclosure is intended to include all possible combinations of the same and/or different embodiments of what is described. Thus, if one embodiment comprises A, B, C and another embodiment comprises a combination of B and D, then this application should also be considered to comprise an embodiment that comprises A, B, C, D in all other possible combinations, although this embodiment may not be explicitly recited in the text below.
As shown in fig. 1 to 3, a TOF camera 100 provided in an embodiment of the first aspect of the present application includes: a light emitting module 10, a lens module 20, a reflector 30, a rotation module 40, and an image processing module 50.
As shown in fig. 1, the light emitting module 10 is used for emitting modulated light.
As shown in fig. 1, the lens module 20 is used to receive natural light reflected by the object 60 and modulated light emitted by the light emitting module 10 and returned by the object 60.
As shown in fig. 1, the reflection member 30 has a reflection surface 31, and the reflection member 30 reflects the natural light and the modulation into the lens module 20.
As shown in fig. 3, the rotating module 40 is connected to the reflector 30 for rotating the reflector 30.
As shown in fig. 1, the image processing module 50 is connected to the lens module 20, and is configured to splice the natural light and the modulated light received by the lens module 20 to obtain a complete image of the object 60.
As shown in fig. 2, a minimum distance L between a zone boundary of the reflection surface 31 within the field of view of the lens assembly 20 and a circumferential edge of the reflection surface 31 is greater than or equal to 0.2 mm.
In the TOF camera 100 provided by the application, the light emitting module 10 emits modulated light to the object 60 to be photographed, the object 60 to be photographed reflects the modulated light and the natural light, the reflecting member 30 reflects part of the modulated light and the natural light to enter the lens module 20, the lens module 20 forms a part of an image of the object 60 to be photographed according to the part of the modulated light and the natural light and sends the part of the image to the image processing module 50, and the image processing module 50 receives the part of the image of the object 60 to be photographed; the rotating module 40 controls the reflector 30 to rotate, adjusts the incident angle of the reflector 30 to reflect the other part of the reflected modulated light and the natural light to enter the lens module 20, the lens module 20 forms the other part of the image of the object 60 to be shot with the modulated light and the natural light and sends the image to the image processing module 50, and the image processing module 50 receives the other part of the image of the object 60 to be shot; the rotating module 40 controls the reflector 30 to rotate rapidly, so that the natural light and the modulated light reflected by the shot object 60 are reflected for multiple times and enter the lens module 20 at different angles, the lens module 20 forms images of all parts of the shot object 60 and sends the images to the image processing module 50, and the image processing module 50 receives the images of all parts of the shot object 60 and splices the images of all parts of the shot object 60 into a complete image of the shot object 60; since the reflector 30 reflects the natural light and the modulated light into the lens module 20 for multiple times without other processing, the pixels of the single partial image of the object 60 to be shot are higher, and the image spliced into the complete object 60 to be shot has higher pixels.
In addition, the minimum distance L between the area boundary of the reflecting surface 31 in the field range of the lens assembly 20 and the circumferential edge of the reflecting surface 31 is greater than or equal to 0.2mm, on one hand, it can be ensured that the reflecting piece 30 will fully reflect the natural light and the modulated light, and the occurrence of the situation that the edge of the reflecting surface 31 affects the natural light and the modulated light to cause the edge distortion of the image formed after the natural light and the modulated light enter the lens module 20 is avoided, that is, the quality of the image formed by the lens module 20 is ensured, so that the quality of the image of the complete shot object 60 spliced by the image processing module 50 is ensured; on the other hand, the condition that the reflecting surface 31 deviates from the view field of the lens assembly 20 due to assembly tolerance is avoided, and the integrity of the image formed by the lens module 20 is ensured.
As shown in fig. 2, in an embodiment of the present application, the reflective member 30 has an initial position, and when the reflective member 30 is in the initial position, a distance D between a lens surface of the lens module 20 and the reflective surface 31 in an optical axis direction of the lens module is 2mm to 15 mm.
In this embodiment, on one hand, if the distance D between the lens surface of the lens module 20 and the reflective surface 31 in the optical axis direction of the lens module 20 is less than 2mm, and the distance between the lens module 20 and the reflective element 30 is too small, the reflective element 30 is likely to interfere with the lens module 20 during the rotation process, so that the reflective element 30 cannot completely reflect the natural light and the modulated light, and the image spliced by the image processing module 50 is incomplete, and on the other hand, if the distance D between the lens surface of the lens module 20 and the reflective surface 31 in the optical axis direction of the lens module 20 is greater than 15mm, the area of the reflective surface 31 is too large, so that the volume of the reflective element 30 is too large, the space occupied by the reflective element 30 is increased, and the space utilization rate is reduced; therefore, the distance D between the lens surface of the lens module 20 and the reflecting surface 31 in the optical axis direction of the lens module 20 is within 2mm to 15mm, on one hand, the effect of taking an image by the TOF camera 100 can be ensured, and on the other hand, the TOF camera 100 has a smaller size, so that the space occupied by the TOF camera 100 is reduced.
As shown in fig. 2, in an embodiment of the present application, a distance D between a lens surface of the lens module 20 and the reflection surface 31 in the optical axis direction of the lens module 20 is 7 mm.
In this embodiment, the distance D between the lens surface of the lens module 20 and the reflecting surface 31 in the optical axis direction of the lens module 20 is 7mm, on one hand, the effect of taking an image by the TOF camera 100 can be ensured, and on the other hand, the TOF camera 100 has a smaller size, so that the space occupied by the TOF camera 100 is reduced.
As shown in fig. 2, in an embodiment of the present application, when the reflective member 30 is in the initial position, the inclination angle α of the reflective surface 31 with respect to the optical axis of the lens module 20 is 30 ° to 60 °, and the horizontal plane is perpendicular to the lens surface.
In this embodiment, the inclination angle α of the reflecting surface 31 determines the reflection angle of the reflecting surface 31, and the reflection angle of the reflecting surface 31 can be flexibly adjusted by setting the inclination angle α of the reflecting surface 31. The inclination angle α of the reflecting surface 31 is within 30 ° to 60 °, so that the reflecting member 30 can sufficiently reflect the natural light and the modulated light reflected by the object 60 to enter the lens module 20 for multiple times.
As shown in fig. 2, in one embodiment of the present application, the inclination angle α is 45 °.
In this embodiment, the inclination angle α of the reflecting surface 31 is 45 °, which ensures that the reflecting member 30 can sufficiently reflect the natural light and the modulated light reflected by the object 60 into the lens module 20 by multiple times.
As shown in fig. 3, in one embodiment of the present application, the rotation module 40 includes: a mounting bracket 41, a first rotator 42, and a second rotator 43.
The mounting bracket 41 is used to fix the reflecting member 30.
The first rotator 42 is connected to the mounting bracket 41 for driving the reflector 30 to rotate around the first axis in the first direction.
The second rotator 43 is connected to the mounting bracket 41 for driving the reflector 30 to rotate around the second axial direction.
When the reflecting piece is at the initial position, the first shaft is positioned in the first plane and is vertical to the optical axis, and the second shaft is vertical to the first shaft and the optical axis simultaneously; the first plane is perpendicular to the reflective surface and the optical axis lies in the first plane.
In this embodiment, the first rotator 42 adjusts a reflection angle of the reflection surface 31 of the reflector 30 in a first direction, the second rotator 43 adjusts a reflection angle of the reflection surface 31 of the reflector 30 in a second direction, the reflector 30 can reflect the natural light and the modulated light reflected by the photographed object 60 into the lens module 20 multiple times through cooperation of the first rotator 42 and the second rotator 43, an image of each part of the photographed object 60 is formed through processing of the lens module 20 and is sent to the image processing module 50, and the image processing module 50 splices the images of each part of the photographed object 60 into a complete image of the photographed object 60.
In one embodiment of the present application, the first rotator is a micro-motor, an output shaft of the micro-motor is connected to the mounting bracket, and the micro-motor drives the mounting bracket to rotate in a first direction. The second rotator is a micro-motor, an output shaft of the micro-motor is connected with the mounting frame, and the micro-motor drives the mounting frame to rotate in the second direction.
As shown in fig. 2, in one embodiment of the present application, the reflective member 30 is a mirror 32.
In this embodiment, the mirror 32 is simple in structure and small in size, and the volume of the TOF camera 100 can be reduced.
As shown in fig. 3, in one embodiment of the present application, the reflecting member 30 is rotated about the first axis clockwise or counterclockwise from the initial position by a rotation angle β 1 of less than 15 °.
In this embodiment, if the rotation angle β 1 of the reflector 30 rotating clockwise or counterclockwise around the first axis from the initial position is greater than 15 °, the distance of the reflector 30 rotating in the first direction is too large, and the reflection surface 31 reflects more light that is not reflected by the photographed object 60, on one hand, the utilization rate of the reflection surface 31 is reduced, which causes waste of resources, and on the other hand, more images of the non-photographed object 60 in the first direction in the finally spliced complete image affect the final imaging effect; therefore, the rotation angle β 1 of the reflector 30 rotating clockwise or counterclockwise around the first axis from the initial position is less than 15 °, on one hand, the reflector 30 can ensure that the natural light and the modulated light of the object 60 to be shot are reflected into the lens module 20 for multiple times in the first direction, so as to form a complete image of the object 60 to be shot, and on the other hand, the utilization rate of the reflecting surface 31 is improved, so that fewer images of the object 60 not to be shot in the first direction are formed in the finally spliced complete image.
In a particular embodiment of the present application, as shown in fig. 3, the reflecting member 30 is rotated about the second axis clockwise or counterclockwise from the initial position by a rotation angle β 1 of 7 °.
In this embodiment, the rotation angle β 1 of the reflector 30 rotating clockwise or counterclockwise around the first axis from the initial position is 7 °, on one hand, the reflector 30 can ensure that the natural light and the modulated light of the object 60 to be shot are reflected into the lens module 20 for multiple times in the first direction sufficiently to form a complete image of the object 60 to be shot, and on the other hand, the utilization rate of the reflecting surface 31 is improved, so that fewer images of the object 60 not to be shot in the first direction in the finally spliced complete image are obtained.
In one embodiment of the present application, the angle of rotation β 2 of the reflective element 30 from the initial position about the second axis, either clockwise or counterclockwise, is less than 15 °, as shown in fig. 3.
In this embodiment, if the rotation angle β 2 of the reflector 30 rotating clockwise or counterclockwise around the second axis from the initial position is greater than 15 °, the distance of the reflector 30 rotating in the second direction is too large, and the reflection surface 31 reflects more light that is not reflected by the photographed object 60, on one hand, the utilization rate of the reflection surface 31 is reduced, which causes waste of resources, and on the other hand, more images of the non-photographed object 60 in the second direction in the finally spliced complete image affect the final imaging effect; therefore, the rotation angle β 2 of the reflector 30 rotating clockwise or counterclockwise around the second axis from the initial position is less than 15 °, on one hand, the reflector 30 can ensure that the natural light and the modulated light of the object 60 to be shot are reflected into the lens module 20 for multiple times in the second direction to form a complete image of the object 60 to be shot, and on the other hand, the utilization rate of the reflecting surface 31 is improved, so that fewer images of the object 60 not to be shot in the second direction are formed in the finally spliced complete image.
As shown in fig. 3, in one embodiment of the present application, the second rotator 43 is rotated by an angle β 2 of 7 ° in the second direction.
In this embodiment, the rotation angle β 2 of the reflector rotating clockwise or counterclockwise around the first axis from the initial position is 7 °, on one hand, it can be ensured that the reflector 30 fully reflects the natural light and the modulated light of the object 60 to be shot into the lens module 20 for multiple times in the second direction to form a complete image of the object 60 to be shot, and on the other hand, the utilization rate of the reflecting surface 31 is improved, so that fewer images of the object 60 not to be shot in the second direction in the finally spliced complete image are obtained.
In another embodiment of the present application, as shown in fig. 4 and 5, the reflecting member 30 is a total reflection prism 33.
In this embodiment, the total reflection prism 33 has high mechanical strength, low probability of damage, and high reliability of use of the total reflection prism 33, thereby prolonging the service life of the product.
As shown in fig. 6, an electronic device 200 provided in an embodiment of the second aspect of the present application includes: a housing 201, a display screen 202 and a TOF camera 100 as described in any of the above, the TOF camera 100 being mounted on the housing.
The application provides an electronic equipment, simple structure, the definition of output image is high to the use comfort of product has been improved, and then the market competition of product has been reduced.
The electronic device may include a mobile phone, a notebook or a tablet computer, etc.
The initial position of the reflector is: the position of the reflector when leaving the factory is that the reflecting surface is arranged opposite to the surface of the lens module; the reflector does not rotate clockwise or counterclockwise around the first axis or the second axis, and the optical axis of the lens assembly passes through the center of the reflecting surface.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application. In this application, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A TOF camera, comprising:
the light emitting module is used for emitting modulated light;
the lens module is used for receiving natural light reflected by a shot object and modulated light which is emitted by the light emitting module and returns by the shot object;
a reflector having a reflective surface, the reflector reflecting the natural light and the modulation to enter the lens module;
the rotating module is connected with the reflecting piece and used for driving the reflecting piece to rotate; and
the image processing module is connected with the lens module and is used for splicing the natural light and the modulated light received by the lens module to obtain a complete image of a shot object;
wherein the minimum distance between the area boundary of the reflecting surface in the field range of the lens module and the circumferential edge of the reflecting surface is greater than or equal to 0.2 mm.
2. The TOF camera of claim 1,
the reflecting piece is provided with an initial position, and when the reflecting piece is located at the initial position, the distance between the lens surface of the lens module and the reflecting surface in the optical axis direction of the lens module is 2-15 mm.
3. The TOF camera of claim 2,
the distance between the lens surface of the lens module and the reflecting surface in the optical axis direction of the lens module is 7 mm.
4. The TOF camera of claim 1,
when the reflecting piece is at the initial position, the inclination angle of the reflecting surface relative to the optical axis of the lens module is 30-60 degrees.
5. The TOF camera of claim 4,
the inclination angle is 45 °.
6. The TOF camera of claim 1,
the rotation module includes: the mounting frame is used for fixing the reflecting piece;
the first rotator is connected with the mounting frame and used for driving the reflecting piece to rotate around a first axial direction; and
the second rotator is connected with the mounting frame and used for driving the reflecting piece to rotate around a second axial direction;
when the reflector is at an initial position, the first axis is positioned in a first plane and is vertical to the optical axis, and the second axis is simultaneously vertical to the first axis and the optical axis;
the first plane is perpendicular to the reflection surface, and the optical axis is located in the first plane.
7. The TOF camera of claim 6,
the angle of rotation of the reflector from the initial position about the first axis, either clockwise or counterclockwise, is less than 15 DEG, and/or
The reflector rotates clockwise or counterclockwise about the second axis from the initial position by less than 15 °.
8. The TOF camera of claim 7,
the angle of rotation of the reflector from the initial position about the first axis is 7 DEG in a clockwise or counterclockwise direction, and/or
The reflector is rotated about the second axis clockwise or counterclockwise from the initial position by a rotation angle of 7 °.
9. The TOF camera of claim 1,
the reflecting member includes a reflecting mirror or a total reflection prism.
10. An electronic device, comprising: a housing; and
a TOF camera as claimed in any one of claims 1 to 9 mounted on the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922194307.0U CN211239928U (en) | 2019-12-09 | 2019-12-09 | TOF camera and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922194307.0U CN211239928U (en) | 2019-12-09 | 2019-12-09 | TOF camera and electronic device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111953875A (en) * | 2020-08-12 | 2020-11-17 | Oppo广东移动通信有限公司 | Depth detection assembly and electronic equipment |
| WO2021114036A1 (en) * | 2019-12-09 | 2021-06-17 | 南昌欧菲生物识别技术有限公司 | Tof camera and electronic device |
| CN114697549A (en) * | 2022-03-22 | 2022-07-01 | 深圳市海清视讯科技有限公司 | Image acquisition device and panoramic image acquisition method |
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2019
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021114036A1 (en) * | 2019-12-09 | 2021-06-17 | 南昌欧菲生物识别技术有限公司 | Tof camera and electronic device |
| CN111953875A (en) * | 2020-08-12 | 2020-11-17 | Oppo广东移动通信有限公司 | Depth detection assembly and electronic equipment |
| CN111953875B (en) * | 2020-08-12 | 2022-02-15 | Oppo广东移动通信有限公司 | Depth detection assembly and electronic equipment |
| CN114697549A (en) * | 2022-03-22 | 2022-07-01 | 深圳市海清视讯科技有限公司 | Image acquisition device and panoramic image acquisition method |
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