CN210093398U

CN210093398U - 3D imaging device and electronic equipment

Info

Publication number: CN210093398U
Application number: CN201921369230.XU
Authority: CN
Inventors: 孔铭
Original assignee: Shenzhen Orbbec Co Ltd
Current assignee: Orbbec Inc
Priority date: 2019-08-21
Filing date: 2019-08-21
Publication date: 2020-02-18
Anticipated expiration: 2029-08-21

Abstract

The utility model discloses a 3D imaging device, which comprises a projection module, a floodlight, an imaging module, a sensor and a bracket; wherein, one of them tip of support is along keeping away from the tip direction is installed in proper order projection module, sensor and floodlight, another tip of support is installed the formation of image module, floodlight with the distance between the formation of image module is greater than floodlight with the distance between the projection module. The utility model discloses an install projection module, sensor, floodlight and the reasonable setting of formation of image module on the support for 3D image device's overall structure is stable, small, can conveniently imbed into electronic equipment's complete machine product, so that complete machine product design just does benefit to the use that improves the user and experiences.

Description

3D imaging device and electronic equipment

Technical Field

The utility model relates to an optics and electron technical field, in particular to 3D imaging device and electronic equipment.

Background

With the development of scientific technology, intelligent electronic devices such as mobile phones and tablets have increasingly urgent requirements on depth cameras with built-in 3D imaging, and with the rapid development of depth cameras towards smaller and smaller volumes and lower power consumption, the depth cameras become possible to be embedded into other electronic devices as built-in components.

However, due to the continuous pursuit of appearance and volume of electronic devices, great challenges are brought to the design and installation of the built-in components of the electronic devices, and not only the components are required to have a small volume, low power consumption and high heat dissipation performance, but also the layout between the components is required to be reasonable enough to achieve a high integration level. Therefore, it is necessary to develop and research the 3D imaging device according to the requirements, with a stable structure and a small volume, and without affecting the performance of the whole product, so as to facilitate the design of the whole product and not affect the user experience.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned prior art not enough, provide a stable in structure, small and high radiating 3D image device to make things convenient for complete machine product design and do benefit to user's use and experience.

In order to achieve the above object, the embodiment of the present invention provides a technical solution that:

a 3D imaging apparatus comprising:

the projection module is used for emitting the structured light beam to the space;

a floodlight for projecting a floodlight beam to the space;

the imaging module is used for imaging the structured light beam and/or the floodlight beam;

the sensor is used for carrying out induction detection on the target object to obtain the related information of the target object;

the support, one of them tip of support is along keeping away from install in proper order projection module, sensor reach floodlight, another tip of support is installed the formation of image module, floodlight with distance between the formation of image module is greater than floodlight with distance between the projection module.

Optionally, the distance between the projection module and the imaging module is 75mm, the distance between the floodlight and the projection module is 26.3mm, and the distance between the floodlight and the imaging module is 48.7 mm.

Optionally, the device further comprises a color camera module for collecting the color image, wherein the color camera module is located between the projection module and the imaging module and near one end of the imaging module.

Optionally, the sensor is a distance sensor comprising:

the detection unit is used for transmitting a detection signal to a target object;

and the detection unit is used for detecting a reflected signal formed after the detection signal is reflected by the target object.

Optionally, the projection module further comprises an indicator light, when the projection module is in an on state, the indicator light is turned on, and when the projection module is in an off state, the indicator light is turned off.

Optionally, the wavelength of the light beam of projection module projection is the same with the wavelength of the floodlight beam of floodlight projection, and can both be gathered by the imaging module.

Optionally, the projection module comprises a light source, and a heat sink is disposed at the light source of the projection module; and a ventilation opening is formed in the side surface of the bracket corresponding to the radiating fin.

Optionally, the system further comprises a processor, wherein the processor is connected with the distance sensor and determines a distance value according to a time difference between the emission of the detection signal by the distance sensor and the reception of the reflection signal.

Optionally, the indicator light, the floodlight and the distance sensor are mounted on the same mounting surface, and a silica gel sleeve is pasted on the mounting surface.

The utility model discloses another technical scheme does:

an electronic device comprises the 3D imaging device in the scheme, wherein the 3D imaging device is installed on a first plane of the electronic device and is used for acquiring an image or/and distance information of a target object; the screen is arranged on a second plane of the electronic equipment and is used for displaying images; the first plane and the second plane are the same plane or the first plane and the second plane are opposite planes.

The utility model discloses technical scheme's beneficial effect is:

the utility model discloses 3D imaging device is through installing projection module, sensor, floodlight and the reasonable setting of formation of image module on the support for 3D imaging device's overall structure is stable, small, can conveniently imbed into electronic equipment's complete machine product, so that complete machine product design just does benefit to the use that improves the user and experiences.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a perspective view of the 3D imaging apparatus of the present invention;

fig. 2 is another angular view of the 3D imaging device of the present invention;

fig. 3 is a schematic structural diagram of an electronic device according to another embodiment of the present invention.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

It will be further understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner" and "outer" refer to an orientation or positional relationship as shown in the drawings, which are used for convenience in describing and simplifying the invention, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered limiting of the invention.

The utility model discloses to the depth camera that is used for the 3D formation of image or the electronic equipment who has imbedded the depth camera module, provided a stable in structure, small and high radiating structural scheme. The utility model provides a structural scheme has been suitable for all types of degree of depth camera or electronic equipment, will explain with degree of depth camera based on structured light technique and relevant electronic equipment in the description below the utility model discloses the thought, it is right nevertheless to understand structured light the utility model discloses a restriction, other schemes that adopt this structural design, including but not limit TOF (flight time) scheme, RGB two mesh schemes, laser radar scheme etc. all should belong to the utility model discloses a protection scope.

Referring to fig. 1 and 2, a 3D imaging device 10 according to an embodiment of the present invention includes a projection module 100, a floodlight 110, an imaging module 120, a sensor 130, and a bracket 140; the projection module 100 is configured to emit a structured light beam to a space; a floodlight 110 for projecting a floodlight beam into a space; the imaging module 120 is used for imaging the structured light beam and/or the floodlight beam; the sensor 130 is used for sensing and detecting a target object to obtain related information of the target object; in this embodiment, the sensor 130 is a distance sensor for detecting the proximity of the target object to the 3D imaging device 10; one end of the bracket 140 is sequentially provided with the projection module 100, the distance sensor 130 and the floodlight 110 along the direction far away from the end; and the other end is provided with an imaging module 120; wherein, the distance between the floodlight 110 and the imaging module 120 is greater than the distance between the floodlight 110 and the projection module 100.

The projection module 100 and the imaging module 120 form a structured light depth camera with a certain distance (typically center-to-center), referred to herein as a baseline. For structured light depth cameras, the length of the baseline can affect the measurement range and accuracy of the depth camera, generally, the longer the baseline, the larger the measurement range; in addition, for the same measurement distance, the longer the baseline, the higher the measurement accuracy. However, when the base line is long, the size of the depth camera is required to be larger correspondingly, so that the depth camera is difficult to be embedded into some miniature electronic equipment, and therefore, the base line is selected by comprehensively considering the size, the measurement range, the precision and the like of the depth camera. In the embodiment of the present invention, in order to improve the measurement accuracy and lengthen the length of the base line, the projection module 100 and the imaging module 120 are respectively disposed at the end portions of the two ends of the bracket 140; in one embodiment, the distance between the projection module 100 and the imaging module 120 is 75 mm. Further, the distance between the floodlight 110 and the projection module 100 is 26.3mm, and the distance between the floodlight 110 and the imaging module 120 is 48.7 mm.

It will be appreciated that the proximity of the target object to the imaging device 10 is detected by the distance sensor 130. In the embodiment of the present invention, the distance sensor 130 includes a detecting unit 131 and a detecting unit 132; wherein, the detecting unit 131 is used for emitting a detecting signal to the target object; the detecting unit 132 is configured to detect a reflected signal formed by the detection signal being reflected by the target object. It is understood that the detection signal and the reflection signal are both optical signals.

As an embodiment of the present invention, the 3D imaging apparatus 10 further includes a processor (not shown), the processor is connected to the distance sensor 130, and determines the distance value according to a time difference from the time when the distance sensor 130 transmits the detection signal to the time when the reflection signal is received. When the distance value is smaller than the preset value, for example, 20mm, the projection module 100 is closed, so that the laser emitted by the projection module 100 is prevented from damaging human eyes when the target object is a human.

As an embodiment of the present invention, the 3D imaging device 10 further includes a main board (not shown), and it can be understood that each optical component is connected to the main board through a circuit board (not shown) and a connector (not shown) to realize power supply and circuit connection, and when the imaging device 10 is powered on, the indicator light 150 will flash several times and then stop. The circuit board may be a flexible circuit board FPC, a printed circuit board PCB, a rigid-flex board, or the like, and the connector may include any form such as a board-to-board (BTB) connector, a Zero Insertion Force (ZIF) connector, or the like. In one embodiment, foam can be further attached to the connector to prevent light cross-talk and to prevent dust.

It will be appreciated that the processor implements control of the various modules and units via the circuit board with corresponding interfaces, including various interfaces, such as I²C interface, etc. The processor may be a single processor or may be comprised of a plurality of processing units of different functionality. Of course, the processor may also be a dedicated processor in the 3D imaging device 10, and in some embodiments, when the 3D imaging device is applied in some mobile terminals, the processor may also be a processor in the mobile terminal itself, or may also be an application processor AP. For example, the application processor AP in the mobile phone performs the proximity determination through data transceiving of the detection unit 131 and the detection unit 132And (7) breaking.

Specifically, the processor or the application processor triggers the distance sensor 130 through the interface, and when the distance sensor 130 detects a target object, the processor applies a synchronous trigger signal to the projection module 100 and the imaging module 120, so that the projection module 100 projects a structured light beam to the target object and the imaging module 120 simultaneously collects a structured light image of a target environment, thereby preventing the projection module 100 and the imaging module 120 from being always in a working state, and further reducing the power consumption of the 3D imaging device 10. As an embodiment of the present invention, when the projection module 100 is in the off state, the indicator light 150 is also turned off.

In an embodiment, the indicator light 150, the floodlight 110 and the distance sensor 130 are installed on the same installation surface 101, and a silica gel sleeve is adhered on the installation surface 101, so that the 3D integrated device 10 has a more compact structure, can save materials, and has a more beautiful appearance. In addition, another purpose of the silicone rubber cover is to avoid the phenomenon of crosstalk between the detection unit 131 and the detection unit 132, that is, the signal generated by the detection unit 131 is detected by the detection unit 132 without being reflected by the target object. Similarly, in order to avoid the crosstalk phenomenon of other optical modules, for example, the patterned light beam projected by the projection module 100 is directly collected by the imaging module 120 without being reflected by the target object, in one embodiment, a PET protective film may be attached to the light exit or light entrance window of each corresponding optical module, so as to not only solve the above problem, but also prevent dust. In one embodiment, the PET protective film is constructed of SH-010G 5.

As an embodiment of the present invention, the imaging module 120 can not only collect the light beam projected by the projection module 100 to generate the structured light image, but also further collect the light beam projected by the floodlight 110 to generate the floodlight image; specifically, when the projection module 100 is closed, the imaging module 120 collects a flood image. In some applications, such as face recognition at night, it is often desirable to provide a flood image under flood lighting, which may be performed using the switchable floodlight 110.

It is understood that the wavelength of the light beam projected by the projection module 100 should be the same as the wavelength of the floodlight beam projected by the floodlight 110, and all of the light beams can be collected by the imaging module 120. Generally, the projection module 100 is used for projecting invisible light patterns, such as infrared light, and correspondingly, the imaging module 120 should be an infrared camera, and the floodlight should be an infrared floodlight. In some embodiments, the structured light pattern may also be any other wavelength of light, such as ultraviolet, visible, and the like.

In one embodiment, in order to make the 3D imaging device 10 possess more functions, generally, a color camera module 160, such as an RGB camera module, is also disposed in the 3D imaging device 10, and the RGB camera module is taken as an example for the following description, but should not be considered as a limitation to the present invention. The 3D imaging device 10 equipped with the RGB camera module has the capability of synchronously acquiring the target depth image and the RGB image. In one embodiment, the color camera module 160 is located between the projection module 100 and the imaging module 120 and near one end of the imaging module 120, and further, the distance between the color camera module and the imaging module is 12.5 mm.

It is understood that when the 3D imaging device 10 is embedded in other electronic equipment, the stability of each component needs to be ensured, and in addition, the high heat dissipation performance of each optical module needs to be ensured. As shown in fig. 2, in an embodiment of the present invention, each optical module in the 3D imaging device 10 is fixed on the bracket 140, and a through hole 102 is formed in the middle of the fixing bracket 140 to allow the upper end of the optical module to pass through to ensure that the relative position of each optical module in the horizontal direction is fixed. In one embodiment, the projection module 100 includes a light source, and a heat sink, such as a graphite sheet, is disposed at the light source of the projection module for dissipating heat so as to maintain the temperature of the light source at about 55 degrees celsius. Corresponding to the radiating fins, a plurality of ventilation openings 170 are formed in the side face of the support, and when wind flows through the ventilation openings 170, heat of the radiating fins can be taken away.

In the above embodiments, the structure of the 3D imaging device is described, and actually, the 3D imaging device becomes more and more components of electronic equipment, such as a mobile phone, a computer, a tablet, a television, and the like, so that the electronic equipment has a 3D imaging capability. The structures in the above embodiments may also be used on the integration of structures in an electronic device. The following description is given by way of example, but the present invention is not limited to the field of mobile phones, and other electronic devices shall also fall within the scope of the present invention.

Fig. 3 shows another embodiment of the present invention, which provides an electronic device 20, where the electronic device 20 includes the 3D imaging device, the housing 21, the screen 22, the battery 24, and the main board 23 according to the foregoing embodiments. The 3D imaging device is installed on a first plane of the electronic device 20, and is configured to acquire an image or/and distance information of a target object; the screen 22 is mounted on a second plane of the electronic device for displaying images; the first plane and the second plane are the same plane or the first plane and the second plane are opposite planes.

In particular, the 3D imaging device is configured to capture an image of a target on the front of the electronic device 20, called a front camera, and in some embodiments, may be a rear camera or other cameras. In this configuration, each part of the 3D imaging device is separately disposed from the main board 23 in the electronic apparatus 20, and the 3D imaging device is integrated as a separate component in the electronic apparatus 20. In some embodiments, the main board 23 and the support 140 of the electronic device may be integrated into one, and other components, such as a dedicated processor, on the 3D imaging device may also be directly placed on the main board 23 of the electronic device, or even the other processors 25 on the main board 23 of the electronic device may perform functions of the dedicated processor, so that the number of components may be reduced, the whole electronic device may be more integrated, and power consumption may be reduced.

In some embodiments, the planes of the screens of the mobile terminals, in which the 3D imaging devices are arranged, are the same plane or opposite planes, and may be set according to the specific situation of the mobile terminal electronic device.

It should be understood by those skilled in the art that the embodiments of the present invention are illustrated only by the above-mentioned division of the functional units and modules for convenience and simplicity of description, and in practical applications, the above-mentioned function distribution can be completed by different functional units and modules as required, that is, the internal structure of the device is divided into different functional units or modules to complete all or part of the above-described functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of hardware and software functional units. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A 3D imaging apparatus, comprising:

a floodlight for projecting a floodlight beam to the space;

the support, one of them tip of support is along keeping away from install in proper order in the tip direction projection module, sensor and floodlight, another tip of support is installed the formation of image module, floodlight with distance between the formation of image module is greater than floodlight with distance between the projection module.

2. 3D imaging device according to claim 1, characterized in that: the projection module with distance between the formation of image module is 75mm, floodlight with distance between the projection module is 26.3mm, floodlight with distance between the formation of image module is 48.7 mm.

3. 3D imaging device according to claim 1, characterized in that: the color camera module is positioned between the projection module and the imaging module and is close to one end of the imaging module.

4. 3D imaging device according to claim 1, characterized in that: the sensor is a distance sensor comprising:

5. 3D imaging device according to claim 1, characterized in that: the projection module is in an on state, the indicator light is turned on, and when the projection module is in an off state, the indicator light is turned off.

6. 3D imaging device according to claim 1, characterized in that: the wavelength of the light beam projected by the projection module is the same as that of the floodlight beam projected by the floodlight, and the light beam can be collected by the imaging module.

7. 3D imaging device according to claim 1, characterized in that: the projection module comprises a light source, and a radiating fin is arranged at the light source of the projection module; and a ventilation opening is formed in the side surface of the bracket corresponding to the radiating fin.

8. The 3D imaging device according to claim 4, characterized in that: the distance detection device further comprises a processor, wherein the processor is connected with the distance sensor and determines a distance value according to the time difference between the emission of the detection signal by the distance sensor and the reception of the reflection signal.

9. The 3D imaging device according to claim 5, characterized in that: the indicator light, the floodlight and the distance sensor are arranged on the same installation surface, and the silica gel sleeve is adhered to the installation surface.

10. An electronic device, comprising:

the 3D imaging device according to any one of claims 1 to 9, wherein the 3D imaging device is mounted on a first plane of an electronic device and is used for acquiring an image or/and distance information of a target object;

a screen mounted on a second plane of the electronic device for displaying an image; wherein the content of the first and second substances,

the first plane and the second plane are the same plane or the first plane and the second plane are opposite planes.