CN218526374U

CN218526374U - Depth camera

Info

Publication number: CN218526374U
Application number: CN202222411860.7U
Authority: CN
Inventors: 江运云; 汤建华; 蒋勋
Original assignee: Orbbec Inc
Current assignee: Orbbec Inc
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2023-02-24
Anticipated expiration: 2032-09-09

Abstract

The utility model provides a degree of depth camera, degree of depth camera include camera support, laser emission module, collection module and drive assembly. The laser emission module is arranged on the camera bracket and used for emitting laser; the acquisition module is arranged on the camera bracket and positioned on one side of the laser emission module and is used for acquiring the reflected laser; the laser emission module and/or the collection module are/is movably connected with the camera bracket; the driving assembly is installed on the camera support and connected with the laser emission module or the collection module, and the driving assembly is used for driving the laser emission module or the collection module to move relative to the camera support so as to adjust the baseline distance between the laser emission module and the collection module. The depth camera of the application, drive assembly and laser emission module or gather the module and be connected to can adjust the base line distance between laser emission module and the collection module, make depth camera focusing convenient, expand the measuring range of depth camera in addition, can satisfy the depth measurement requirement of different scenes.

Description

Depth camera

Technical Field

The utility model belongs to the technical field of the camera, especially, relate to a depth camera.

Background

The depth camera generally comprises a laser emission module and a collection module, wherein the laser emission module is used for emitting laser towards an object, and the collection module is used for receiving the laser reflected back by the object. Wherein changing the baseline between the laser firing module and the collection module can change the focal length of the depth camera. In the experimentation, be a troublesome thing to the focusing of degree of depth camera, at present most all focus through changing spare part, and it is very troublesome that it adjusts, needs the equipment of constantly making a design and changes.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve not enough among the prior art to a certain extent at least, provide a degree of depth camera, promote the convenient degree of camera focusing.

A depth camera, comprising: camera support, laser emission module, collection module and drive assembly. The laser emission module is arranged on the camera bracket and used for emitting laser; the acquisition module is arranged on the camera bracket, is positioned on one side of the laser emission module and is used for receiving the reflected laser; the laser emission module and/or the collection module are/is movably connected with the camera bracket; the driving assembly is installed on the camera support and connected with the laser emission module and/or the acquisition module, and is used for driving the laser emission module or the acquisition module to move relative to the camera support so as to adjust the baseline distance between the laser emission module and the acquisition module.

In some embodiments, the camera support comprises a first sub-support and a second sub-support which are connected, and the first sub-support and the second sub-support are of a split structure or are of an integrated structure. In one embodiment, the collecting module is fixedly arranged on the first sub-support, the laser emission module is movably arranged on the second sub-support, and the driving assembly is connected with the laser emission module. In another embodiment, the collection module is movably mounted on the first sub-bracket, the laser emission module is fixedly mounted on the second sub-bracket, and the driving assembly is connected with the collection module.

In some embodiments, the first sub-bracket is formed with a first mounting groove and a second mounting groove communicated with the first mounting groove, the collection module is fixed to the first sub-bracket, and the collection module includes a first circuit board, a lens barrel, a photosensitive chip and a lens. The first circuit board is arranged in the first mounting groove; the lens cone is arranged on the first circuit board, one part of the lens cone is positioned in the first mounting groove, and the other part of the lens cone is positioned in the second mounting groove; the photosensitive chip is arranged on the first circuit board and is positioned in the lens cone; the lens is arranged in the lens barrel and is positioned above the photosensitive chip. In some embodiments, the side wall of the first sub-mount is formed with a first notch, and a part of the first circuit board extends out of the first sub-mount from the first notch.

In some embodiments, the laser emission module comprises a laser emission assembly and a sliding member, the sliding member is slidably connected with the second sub-bracket, the laser emission assembly is fixedly mounted on the sliding member, and the driving assembly is connected with the sliding member and can drive the sliding member to slide relative to the second sub-bracket. In some embodiments, a third mounting groove is formed in one side of the sliding part, which faces away from the second sub-support, and the laser emission assembly comprises a second circuit board, a lens bracket, a light source, a diffusion part and a shielding cover. The second circuit board is arranged in the third mounting groove; the lens bracket is arranged on the second circuit board; the light source is arranged on the second circuit board and positioned in the mirror bracket and used for generating light beams; the diffusion piece is arranged on the mirror bracket and used for diffusing the light beam; the shielding cover is arranged on the second circuit board and covers the diffusion piece and the mirror bracket, and the shielding cover is provided with a light outlet which is opposite to the diffusion piece.

In some embodiments, the sliding member is provided with a through movable hole, the second sub-bracket penetrates through the movable hole, and the extending direction of the second sub-bracket is the baseline direction of the depth camera. Preferably, the sliding part is provided with a transmission hole penetrating through; the second sub-support comprises a body and two supporting ribs, the two supporting ribs are respectively arranged at two opposite ends of one side, away from the laser emission module, of the body, and the sliding piece is located between the two supporting ribs. The driving assembly comprises a driving piece and a transmission rod; two ends of the transmission rod are respectively connected with the two support ribs, penetrate through the transmission hole and are connected with the sliding part; the driving piece is installed on the body and connected with one end of the transmission rod, and is used for driving the transmission rod to move so as to drive the sliding piece to move. In some embodiments, the driving assembly further comprises a manual adjusting rod connected to one end of the transmission rod, which is not connected to the driving member, and the manual adjusting rod is rotated to drive the transmission rod to move so as to drive the sliding member to move; wherein, the manual adjusting rod and the transmission rod are of an integral structure or a split structure.

In some embodiments, the depth camera further includes a locking member disposed on the sliding member for locking the sliding member with the second sub-bracket when the sliding member moves to the designated position. In some embodiments, the depth camera further includes a position sensor disposed at the second sub-bracket for detecting a position of the slider or a movement distance of the slider. In some embodiments, a scale is also inscribed on the second submount for identifying the baseline distance.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model provides a mode that degree of depth camera drive assembly drive laser emission module or gather the relative camera support of module and remove has realized the baseline distance of adjusting the degree of depth camera to need not to change the laser emission module or gather the module in accommodation process, adjust convenient and fast, in addition because the baseline distance is adjustable, extended the measuring range of degree of depth camera, can satisfy the degree of depth measurement requirement of different scenes

Drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, 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 schematic view of a view angle of a depth camera according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of another viewing angle of the depth camera according to an embodiment of the present invention;

fig. 3 is a schematic view of the camera bracket and the sliding member according to the embodiment of the present invention;

fig. 4 is another view angle assembly diagram of the camera bracket and the sliding member according to the embodiment of the present invention.

In the drawings, each reference numeral indicates:

1. the camera comprises a camera support 101, a first sub-support 1010, a first mounting groove 1011, a second mounting groove 102, a second sub-support 1021, a body 1022, a support rib 1023, a fixing boss 1024 and a scale; 2. a laser emission module 21, a sliding part 211, a third mounting groove 22, a laser emission component 221, a second circuit board and a shielding cover 222; 3. the device comprises a collection module 30, a first circuit board 31, a lens barrel 32 and a lens; 4. the device comprises a driving assembly 40, a driving piece 41, a transmission rod 42 and a manual adjusting rod; 5. a locking member; 6. a position sensor.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar methods or methods having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to be used for explaining the present invention, but should not be construed as limiting the present invention, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

Referring to fig. 1-4, an embodiment of the present invention discloses a depth camera, including: camera support 1, laser emission module 2, collection module 3 and drive assembly 4. The laser emission module 2 is arranged on the camera support 1 and used for emitting laser; the acquisition module 3 is arranged on the camera bracket 1 and positioned at one side of the laser emission module 2 and used for receiving reflected laser; the laser emission module 2 and/or the acquisition module 3 are/is movably connected with the camera support 1; drive assembly 4 installs on camera support 1 to be connected with laser emission module 2 and/or gather module 3, be used for drive laser emission module 2 and/or gather module 3 and remove 1 relative camera support, with the baseline distance of adjusting between laser emission module 2 and the collection module 3.

The degree of depth camera that possesses above technical feature has realized adjusting the baseline distance of degree of depth camera through the mode that drive assembly 4 drive laser emission module 2 or gather module 3 and remove 1 relative camera support to need not to change laser emission module 2 or gather module 3 in accommodation process, adjust convenient and fast, because the baseline distance is adjustable, has expanded the measuring range of degree of depth camera in addition, can satisfy the degree of depth measurement requirement of different scenes.

The depth camera may be a structured light depth camera or a time-of-flight depth camera, which is not limited herein.

In some embodiments, the camera support 1 comprises a first sub-support 101 and a second sub-support 102 which are connected, and the first sub-support 101 and the second sub-support 102 can be of a split structure and are assembled into the camera support 1 by welding, bonding and the like; alternatively, the first sub-mount 101 and the second sub-mount 102 are formed integrally, and the camera mount 1 is obtained by integral molding. In the embodiment shown in fig. 1 to 4, the first and

second sub-mounts

101 and 102 are each of a plate-type structure. In other embodiments, the first sub-mount 101 and the second sub-mount 102 may have other structures, for example, the second sub-mount 102 has a plate structure, and the first sub-mount 101 has a block structure.

In one embodiment, the collection module 3 is fixedly installed on the first sub-support 101, the laser emission module 2 is movably installed on the second sub-support 102, the base line distance between the laser emission module 2 and the collection module 3 can be changed by moving the laser emission module 2, and the specific driving component 4 is connected with the laser emission module 2 and can drive the laser emission module 2 to move. In another embodiment, gather module 3 movable mounting in first sub-support 101, laser emission module 2 fixed mounting in second sub-support 102, remove and gather module 3 and can change the baseline distance between laser emission module 2 and the collection module 3, concrete drive assembly 4 is connected and can drive and gather module 3 and move with gathering module 3. In another embodiment, the collection module 3 is movably mounted on the first sub-frame 101, the laser emission module 2 is movably mounted on the second sub-frame 102, the movable collection module 3 or the laser emission module 2 can change the baseline distance between the laser emission module 2 and the collection module 3, the number of the specific driving assemblies 4 can be two, one driving assembly 4 is connected with the collection module 3 and can drive the collection module 3 to move, and the other driving assembly 4 is connected with the laser emission module 2 and can drive the laser emission module 2 to move.

As shown in fig. 1, the utility model discloses use collection module 3 fixed mounting in first sub-support 101, laser emission module 2 movable mounting explains the degree of depth camera in second sub-support 102 as an example, can understand, the utility model discloses can also be other circumstances.

In some embodiments, the collection module 3 is fixed to the first sub-bracket 101, the first sub-bracket 101 is formed with a second installation groove 1011 in which the first installation groove 1010 communicates with the first installation groove 1010, and the collection module 3 includes: a first circuit board 30, a lens barrel 31, a photosensitive chip (not shown), and a lens 32. The first circuit board 30 is installed in the first installation groove 1010; the lens barrel 31 is mounted on the first circuit board 30, a part of which is located in the first mounting groove 1010, and the other part of which is located in the second mounting groove 1011; the photosensitive chip is mounted on the first circuit board 30, is located in the lens barrel, and is used for receiving an optical signal and converting the optical signal into an electrical signal; the lens 32 is installed in the lens barrel, extends into the second installation groove 1011, is located above the photosensitive chip, and is used for converging light signals to the photosensitive chip. In this embodiment, the first sub-bracket 101 is provided with the first mounting groove 1010 and the second mounting groove 1011, so that the space of the first sub-bracket 101 is fully utilized, different parts of the lens barrel 31 are respectively mounted in the first mounting groove 1010 and the second mounting groove 1011, and part of the lens 32 extends into the second mounting groove 1011, so that the structure between the collection module 3 and the first sub-bracket 101 is more compact.

Further, a first notch is formed in a side wall of the first sub-mount 101, and a portion of the first circuit board 30 extends out of the first sub-mount 101 from the first notch, so that the first circuit board 30 can be electrically connected to a device outside the depth camera, for example, a motherboard outside the depth camera, and by providing the first notch, the first sub-mount 101 limits, supports and protects the first circuit board 30, and the size of the first sub-mount 101 is smaller.

In one embodiment, the collection module 3 may further include an optical filter disposed between the lens 32 and the light sensing chip and connected to the lens barrel 31 for filtering a portion of the optical signal.

In some embodiments, the laser emission module 2 includes a sliding member 21 and a laser emission assembly 22, the sliding member 21 is slidably connected to the second sub-frame 102, the laser emission assembly 22 is fixedly mounted on the sliding member 21, and the driving assembly 4 is connected to the sliding member 21 and can drive the sliding member 21 to slide relative to the second sub-frame 102, so as to change a baseline distance between the laser emission module 2 and the collection module 3.

Specifically, a third mounting groove 211 is formed in a side of the sliding member 21 away from the second sub-bracket 102, and the laser emitting assembly 22 is fixedly mounted in the third mounting groove 211, so that the volume of the laser emitting module 2 is small. The laser emitting assembly 22 includes a second circuit board 221, a mirror mount, a light source, a diffuser, and a shield 222. The second circuit board 221 is mounted in the third mounting groove 211, the mirror bracket is mounted on the second circuit board 221, and the light source is mounted on the second circuit board 221 and located in the mirror bracket for generating a light beam; the diffusion piece is arranged on the mirror frame and positioned in the emission path of the light source and used for diffusing the light beam; the shielding cover 222 is mounted on the second circuit board 221, and covers the diffuser and the lens holder, and the shielding cover has a light exit, the light exit is opposite to the diffuser, and the light beam diffused by the diffuser exits from the light exit. In one embodiment, one side of the third mounting groove 211 is provided with a second notch, and the second circuit board 221 can extend out of the second notch, so that the second circuit board 221 can be connected with other devices, and the second notch can make the volume of the laser emission module 2 smaller.

The sliding member 21 is provided with a through moving hole and a transmission hole, the transmission hole is farther away from the second sub-bracket 102 than the moving hole, the second sub-bracket 102 penetrates through the moving hole, the sliding member 21 can be movably connected with the second sub-bracket 102 through the moving hole, wherein the extending direction of the second sub-bracket 102 is the baseline direction of the depth camera, so that the laser emission module 2 moves along the baseline direction all the time when moving. The second sub-frame 102 includes a body 1021 and two support ribs 1022, the two support ribs 1022 are respectively disposed on one side of the body 1021 far away from the laser emitting module 2 and located at two opposite ends of the body 1021, the sliding member 21 is located between the two support ribs 1022, and the two support ribs 1022 can limit the sliding member 21.

In other embodiments, the connection manner between the sliding member 21 and the second sub-bracket 102 is not limited to the manner described in the above embodiments, and may be other, for example, the second sub-bracket 102 may also be configured with two or three guiding rods, the movable hole on the sliding member 21 may be movably matched with the guiding rods, and the sliding member 21 is movably connected with the second sub-bracket 102. For another example, a guide rail may be disposed on the second sub-bracket 102, and the sliding member 21 may be provided with a guide groove for matching, and the guide rail and the guide groove are matched to enable the sliding member 21 to be movably connected with the second sub-bracket 102.

The driving assembly 4 includes a driving member 40 and a transmission rod 41. The transmission rod 41 is connected to the sliding member 21 by passing through the transmission hole, and two ends of the transmission rod 41 are connected to the two support ribs 1022, respectively. The driving member 40 is mounted on the body and connected to one end of the transmission rod 41 for driving the transmission rod 41 to move so as to drive the sliding member 21 to move.

In one embodiment, the driving member 40 may be a driving motor, and the driving motor is installed at a side of the second sub-mount 102 facing away from the laser emitting assembly 22. The transmission rod 41 can be an adjusting screw rod, an internal thread can be formed in the transmission hole, and then the adjusting screw rod is matched with the internal thread, because the two ends of the adjusting screw rod are connected with the two supporting ribs 1022, and the supporting ribs 1022 are fixed, the sliding part 21 can translate when the adjusting screw rod rotates, and then the laser emission component 22 can be driven to translate.

Further, the driving assembly 4 further comprises a manual adjusting rod 42, the manual adjusting rod 42 is connected with one end of the driving member 40, which is not connected with the driving rod 41, and the manual adjusting rod 42 is rotated to drive the driving rod 41 to move so as to drive the sliding member 21 to move; the manual adjustment lever 42 and the transmission lever 41 are integrated or separated. Specifically, the second sub-bracket 102 further has a fixing protrusion 1023, the fixing protrusion 1023 is close to one of the support ribs 1022, the manual adjustment rod 42 is rotatably mounted on the fixing protrusion 1023 and then connected with one end of the transmission rod 41, and the depth camera can further adjust the baseline distance by manually adjusting the manual adjustment rod 42.

In some embodiments, the depth camera further includes a locking member 5 disposed on the sliding member 21 for locking the sliding member 21 and the second sub-bracket 102 when the sliding member 21 moves to the designated position, so as to prevent the sliding member 21 and the second sub-bracket 102 from moving relatively after the baseline distance is adjusted. The locking member 5 may be an electronic lock, a locking screw, or the like, and is not limited herein.

In some embodiments, the depth camera further includes a position sensor 6 disposed on the second sub-bracket 102 for detecting the position of the slider 21 or the movement distance of the slider 21 to achieve precise control of the slider 21. Wherein the position sensor 6 is engageable with the locking member 5, and the locking member 5 locks the slider 21 with the second sub-bracket 102 when the position sensor 6 detects that the slider 21 is moved to a predetermined position.

In some embodiments, a scale 1024 is further engraved on the second sub-mount 102, and the scale 1024 can be used to identify the baseline distance of the depth camera, so that the user can know the baseline distance of the current depth camera through the scale 1024, which is more convenient to operate.

In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments. Above is the description to the technical scheme that the utility model provides, to technical personnel in the field, according to the utility model discloses the thought of embodiment all has the change part on concrete implementation and range of application, to sum up, this description content should not be understood as the restriction of the utility model.

Claims

1. A depth camera, comprising:

a camera support;

the laser emission module is arranged on the camera bracket and used for emitting laser;

the acquisition module is arranged on the camera bracket and positioned on one side of the laser emission module and is used for acquiring the reflected laser;

the laser emission module and/or the collection module are/is movably connected with the camera bracket;

the driving assembly is installed on the camera support, connected with the laser emission module and/or the acquisition module and used for driving the laser emission module and/or the acquisition module to move relative to the camera support so as to adjust the baseline distance between the laser emission module and the acquisition module.

2. The depth camera of claim 1, wherein the camera support comprises a first sub-support and a second sub-support which are connected, and the first sub-support and the second sub-support are of a split structure or are of an integrated structure;

the acquisition module is fixedly arranged on the first sub-bracket, the laser emission module is movably arranged on the second sub-bracket, and the driving assembly is connected with the laser emission module; or the like, or a combination thereof,

the collecting module is movably arranged on the first sub-support, the laser emitting module is fixedly arranged on the second sub-support, and the driving assembly is connected with the collecting module.

3. The depth camera as claimed in claim 2, wherein the first sub-bracket is formed with a first mounting groove and a second mounting groove communicating with the first mounting groove, the collection module is fixedly mounted to the first sub-bracket, the collection module comprises:

the first circuit board is arranged in the first mounting groove;

the lens cone is arranged on the first circuit board, one part of the lens cone is positioned in the first mounting groove, and the other part of the lens cone is positioned in the second mounting groove;

the photosensitive chip is arranged on the first circuit board and is positioned in the lens barrel;

and the lens is arranged on the lens barrel and is positioned above the photosensitive chip.

4. The depth camera of claim 3, wherein a sidewall of the first sub-mount is formed with a first notch from which a portion of the first circuit board protrudes from the first sub-mount.

5. The depth camera as claimed in claim 2, wherein the laser emitting module comprises a sliding member and a laser emitting assembly, the sliding member is slidably connected to the second sub-bracket, the laser emitting assembly is fixedly mounted on the sliding member, and the driving assembly is connected to the sliding member and can drive the sliding member to slide relative to the second sub-bracket.

6. The depth camera of claim 5, wherein a third mounting groove is formed on a side of the sliding member facing away from the second sub-bracket, and the laser emitting assembly comprises:

the second circuit board is arranged in the third mounting groove;

a mirror bracket mounted to the second circuit board;

the light source is arranged on the second circuit board, is positioned in the mirror bracket and is used for generating light beams;

a diffuser mounted to the frame for diffusing the light beam;

the shielding cover is arranged on the second circuit board and covers the diffusion piece and the mirror bracket, and is provided with a light outlet which is opposite to the diffusion piece.

7. The depth camera of claim 5, wherein the sliding member has a through hole, the second sub-bracket passes through the through hole, and the extending direction of the second sub-bracket is a baseline direction of the depth camera.

8. The depth camera of claim 5, wherein the slider is provided with a drive hole therethrough;

the second sub-bracket comprises a body and two supporting ribs, the body is connected with the first sub-bracket, the two supporting ribs are respectively arranged on one side of the body, which is far away from the laser emission module, and are positioned at two opposite ends, and the sliding part is movably connected with the body and is positioned between the two supporting ribs;

the driving assembly comprises a driving rod and a driving piece, the driving rod penetrates through the driving hole to be connected with the sliding piece, and two ends of the driving rod are respectively connected with the two supporting ribs; the driving piece is mounted on the body and connected with one end of the transmission rod, and is used for driving the transmission rod to move so as to drive the sliding piece to move relative to the body.

9. The depth camera of claim 8, wherein the driving assembly further comprises a manual adjustment lever connected to an end of the transmission lever not connected to the driving member, and rotation of the manual adjustment lever moves the transmission lever to move the sliding member relative to the body; the manual adjusting rod and the transmission rod are of an integral structure or a split structure.

10. The depth camera of claim 5, further comprising:

a position sensor provided to the second sub-bracket, for detecting a position of the slider or a moving distance of the slider; and/or the presence of a gas in the atmosphere,

the locking piece is arranged on the sliding piece and used for locking the sliding piece and the second sub-bracket when the sliding piece moves to a specified position; and/or the presence of a gas in the atmosphere,

and a ruler is further engraved on the second sub-bracket and used for marking the baseline distance.