CN213342306U - Shading subassembly, TOF camera, camera module and electronic equipment - Google Patents

Abstract

The application relates to the technical field of cameras, in particular to a shading assembly, a TOF camera, a camera module and electronic equipment. The shading assembly comprises a light-isolating layer and a bonding layer, and ink is coated on the surfaces of two opposite sides of the light-isolating layer; powdered ink is uniformly distributed in the bonding layer; the bonding layers and the light-blocking layers are alternately arranged in a stacked mode, any light-blocking layer is located between two adjacent bonding layers, and the surface, coated with the ink, of the light-blocking layer is attached to the bonding layers. The TOF camera comprises a shading component, a light emitting module, a photosensitive receiving module and a lens, wherein the light emitting module and the photosensitive receiving module are located on the same side of the lens, and the shading component is located between the light emitting module and the photosensitive receiving module and is attached to the lens through a bonding layer. The camera module includes TOF camera, RGB camera, flash light and wide angle camera. Through the mode, the shading assembly can cut off the light path of the light emitting module and the light sensing receiving module and does not influence the appearance consistency of the TOF camera.

Description

Shading subassembly, TOF camera, camera module and electronic equipment

Technical Field

The application relates to the technical field of cameras, in particular to a shading assembly, a TOF camera, a camera module and electronic equipment.

Background

The design of a TOF (Time of flight, or TOF for short) camera needs to separate the light paths of the light emitting module and the light sensing receiving module by opaque parts, so as to avoid the problem of inaccurate measurement results caused by light path strings. In the prior art, a gap exists between a lightproof part and a lens of a camera, and even if the lightproof part is bonded by adopting a light shielding glue, the light path of a light emitting module and a light sensing receiving module is still difficult to cut off.

SUMMERY OF THE UTILITY MODEL

The application provides a shading component, TOF camera, camera module and electronic equipment.

The present application provides a shade assembly comprising,

the two opposite side surfaces of the light isolating layer are coated with ink;

the inside of the adhesive layer is uniformly distributed with powdered ink;

the bonding layers and the light-isolating layers are alternately arranged in a stacked mode, any one light-isolating layer is located between two adjacent bonding layers, and the surface, coated with ink, of the light-isolating layer is attached to the bonding layers.

This application still provides a kind of TOF camera, include shading subassembly, optical emission module, sensitization receiving module and lens, optical emission module with sensitization receiving module is located same one side of lens, the shading subassembly is located optical emission module with pass through between the sensitization receiving module the bond line with the lens laminating is used for cutting off optical emission module with ray path between the sensitization receiving module.

The application still provides a camera module, includes TOF camera, RGB camera, flash light and wide-angle camera.

The application also provides an electronic device, which comprises the camera module and the shell, wherein the camera module is contained in the shell, and part of the camera module is exposed out of the shell.

Compared with the prior art, the beneficial effects of this application are: the light-shielding layer and the adhesive layer are alternately arranged in a laminated manner, and any one light-shielding layer is positioned between two adjacent adhesive layers, so that the light-shielding assembly can be attached and fixed to the lens and the fixing plate; ink is coated on the two opposite side surfaces of the light-blocking layer, and the surface of the light-blocking layer coated with the ink is attached to the bonding layer, so that the light-blocking layer can absorb light rays emitted from the bonding layer in the thickness direction of the light-blocking layer; in addition, the toner is uniformly distributed in the bonding layer, so that the light-blocking layer has good light-blocking performance along the thickness direction of the light-blocking layer, and even if light can pass through the bonding layer along the thickness direction, the light can be absorbed by the light-blocking layer after being reflected. Through the mode, the light path of the light emitting module and the light sensing receiving module can be cut off, and the appearance consistency of the TOF camera is not influenced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic top view of an electronic device provided in an embodiment of the present application;

fig. 2 is a schematic plan view of a camera module according to an embodiment of the present disclosure;

FIG. 3 is a schematic plan view of a variation of the camera module shown in FIG. 2;

FIG. 4 is a schematic cross-sectional view taken along section A-A of FIG. 2 according to the prior art;

FIG. 5 is a partially enlarged view of the region B of FIG. 4 where light passes through the first light shielding glue;

FIG. 6 is a partially enlarged view of the region B in FIG. 4 where light passes through the second light shielding glue;

FIG. 7 is a schematic cross-sectional view taken along section A-A of FIG. 2 according to a second prior art technique;

FIG. 8 is an exploded view of a TOF camera as provided by an embodiment of the present application;

FIG. 9 is a schematic cross-sectional view of section A-A shown in FIG. 2;

FIG. 10 is an enlarged partial schematic view of region C shown in FIG. 9;

FIG. 11 is a schematic cross-sectional view of a shutter assembly in the TOF camera shown in FIG. 8;

FIG. 12 is a schematic cross-sectional view of a variation of the shade assembly shown in FIG. 11;

FIG. 13 is a schematic cross-sectional view of yet another variation of the shade assembly shown in FIG. 11;

figure 14 is a schematic cross-sectional view of yet another variation of the shade assembly shown in figure 11.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be noted that the following examples are only illustrative of the present application, and do not limit the scope of the present application. Likewise, the following examples are only some examples and not all examples of the present application, and all other examples obtained by a person of ordinary skill in the art without any inventive work are within the scope of the present application.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

It should be noted that the terms "first", "second" and "third" in the present application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of indicated technical features. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise.

Referring to fig. 1, fig. 1 is a schematic top view of an electronic device according to an embodiment of the present disclosure. The present application provides an electronic device 2000. Referring to fig. 1, fig. 1 is a perspective view of an electronic device according to an embodiment of the present disclosure. Specifically, the electronic device 2000 may be any of various types of computer system devices (only one modality shown in fig. 1 by way of example) that are mobile or portable and that perform wireless communications. Specifically, the electronic device 2000 may be a mobile phone or a smart phone (e.g., an iPhone (TM) based phone), a Portable game device (e.g., Nintendo DS (TM), PlayStation Portable (TM), game Advance (TM), iPhone (TM)), a laptop, a PDA, a Portable internet device, a music player and a data storage device, other handheld devices and devices such as a headset, etc., and the electronic device 2000 may also be other wearable devices that require charging (e.g., a Head Mounted Device (HMD) such as an electronic bracelet, an electronic necklace, an electronic device or a smart watch).

The electronic device 2000 may also be any of a number of electronic devices including, but not limited to, cellular phones, smart phones, other wireless communication devices, personal digital assistants, audio players, other media players, music recorders, video recorders, other media recorders, radios, medical devices, vehicle transportation equipment, calculators, programmable remote controllers, pagers, laptop computers, desktop computers, printers, netbook computers, Personal Digital Assistants (PDAs), Portable Multimedia Players (PMPs), moving Picture experts group (MPEG-1 or MPEG-2) Audio layer 3(MP3) players, portable medical devices, and digital cameras and combinations thereof.

In some cases, electronic device 2000 may perform multiple functions (e.g., playing music, displaying videos, storing pictures, and receiving and sending telephone calls). If desired, the electronic device 2000 may be a device such as a cellular telephone, media player, other handheld device, wrist watch device, pendant device, earpiece device, or other compact portable device.

The electronic device 2000 may include a camera module 1000 and a housing 3000, the camera module may be accommodated in the housing 3000 and partially exposed outside the housing 3000, and the housing 3000 is used to protect the camera module 1000. For example, the electronic device 2000 may be a mobile phone, and the camera module 1000 is disposed on the housing 3000 (i.e., the rear cover) of the mobile phone.

Referring to fig. 2 and fig. 3, fig. 2 is a schematic plan view of a camera module according to an embodiment of the present application, and fig. 3 is a schematic plan view of a variation of the camera module shown in fig. 2. The camera module 1000 includes a TOF camera 100, an RGB camera 200, a flash light 300, and a wide-angle camera 400, the TOF camera may be used to measure a distance between the electronic device 2000 and a corresponding target object, the RGB camera may be used to collect a two-dimensional color image, photograph a color difference of the image, and the like, and the flash light may be used to supplement light to the target object.

Alternatively, the camera 100, the RGB camera 200, the flash-off lamp 300, and the wide-angle camera 400 may be arranged in a straight line in sequence (as shown in fig. 2). In one embodiment, the camera 100, the RGB camera 200, the strobe light 300, and the wide-angle camera 400 may be arranged in a matrix to make the camera module beautiful (as shown in fig. 3).

Referring to fig. 4, fig. 4 is a schematic cross-sectional view taken along the cross-section a-a shown in fig. 2 in the prior art. The TOF camera 500 in the prior art may include a light shielding partition 501, a light emitting module 502, a light receiving module 503, a lens 504, and a light shielding glue 505. Wherein, the light emitting module 502 and the light receiving module 503 are located on the same side of the lens 504, and the light shielding partition 501 is located between the light emitting module 502 and the light receiving module 503. One end of the light shielding partition 501 abuts against the lens 504, and since a gap exists between the light shielding partition 501 and the lens 504, the light shielding partition 501 is adhered and fixed with the lens 504 through the light shielding glue 505 for blocking the light path of the light emitting module 502 and the light receiving module 503. The light-shielding glue 505 in the prior art can be divided into a first light-shielding glue and a second light-shielding glue.

Referring to fig. 5, fig. 5 is a partially enlarged view illustrating that the light ray passes through the first light shielding adhesive in the area B shown in fig. 4. The first light-shielding glue is generally uniformly dispersed with toner, and the presence of the toner makes the inside of the first light-shielding glue opaque, so that the first light-shielding glue has better light-shielding performance along the plane direction, but the thickness of the first light-shielding glue is thinner, so that the light-shielding performance of the first light-shielding glue along the thickness direction is poorer, and light rays passing through the first light-shielding glue along the thickness direction can still enter the photosensitive receiving module 503 after being reflected by the lens 504 or the light-shielding partition 501 (as shown in the arrow direction in fig. 5).

Referring to fig. 6, fig. 6 is a partially enlarged view illustrating that the light ray passes through the second light shielding adhesive in the area B shown in fig. 4. The second shading glue is the double faced adhesive tape of surface coating printing ink usually, because the surface coating of second shading glue has printing ink for the shading performance that the second shading glue is following thickness direction is better, but the inside that the second shading was glued is transparent structure, and light can pass the second shading glue along the plane direction that the second shading was glued, makes the second shading glue be relatively poor at the shading performance along the plane direction. And because the light at the emitting end is emitted in a wide angle, the light-shielding glue 505 selects the first light-shielding glue or the second light-shielding glue, and the light can always be transmitted to the photosensitive receiving module 503 from the gap between the light-shielding partition 501 and the lens 504, and crosstalk is generated on the light reception of the photosensitive receiving module 503 (as shown by the arrow direction in fig. 6).

Referring to fig. 7, fig. 7 is a schematic cross-sectional view taken along the cross-section a-a shown in fig. 2 according to the second prior art. The TOF camera 600 in the second prior art may include a light shielding partition 601, a light emitting module 602, a light sensing receiving module 603, and a lens 604. Wherein, the light emitting module 602 and the light receiving module 603 are located on the same side of the lens 604, and the light shielding partition 601 is located between the light emitting module 602 and the light receiving module 603. The lens 604 is provided with a slot 605 corresponding to the light-shielding partition 601, and one end of the light-shielding partition 601 is clamped in the slot 605 to completely block the light path between the light-emitting module 602 and the light-sensing receiving module 603. However, this design breaks the uniformity of the lens 604, affecting the aesthetics of the camera.

Referring to fig. 8 to 11, fig. 8 is an exploded schematic view of a TOF camera according to an embodiment of the present disclosure, fig. 9 is a schematic cross-sectional view of a cross-section a-a shown in fig. 2, fig. 10 is a schematic partially enlarged view of a region C shown in fig. 9, and fig. 11 is a schematic cross-sectional view of a light shielding assembly in the TOF camera shown in fig. 8. The embodiment of the present application provides a TOF camera 100, which may include but is not limited to: a light shielding assembly 10, a light emitting module 20, a light receiving module 30, a lens 40, a fixing plate 50 and a bracket 60.

The light emitting module 20 and the light sensing receiving module 30 are fixedly connected with the bracket 60. The fixing plate 50 is provided with a first through hole 51 and a second through hole 52, the light emitting module 20 is accommodated in the first through hole 51, and the light receiving module 30 is accommodated in the second through hole 52, so that the fixing plate 50 fixes the light emitting module 20 and the light receiving module 30. The fixing plate 50 and the lens 40 are disposed in parallel at an interval, the light shielding assembly 10 is located between the light emitting module 20 and the light receiving module 30, and the light shielding assembly 10 is respectively bonded and fixed to the fixing plate 50 and the lens 40 to block the light path of the light emitting module 20 and the light receiving module 30. The bracket 60 is fixedly connected to a surface of the fixing plate 50 facing away from the lens 40 for supporting and fixing the fixing plate 50.

Specifically, the shading assembly 10 provided by the present application may include a light-blocking layer 11 and an adhesive layer 12, which are arranged by laminating colloid, where any one of the light-blocking layers 11 is located between two adjacent adhesive layers 12, and a surface of the light-blocking layer 11 coated with ink is attached to the adhesive layer 12.

Optionally, the opposite sides of the light-blocking layer 11 are coated with ink, wherein the ink is used for absorbing light rays along the thickness direction of the light-blocking layer 11 (as shown in fig. 10), specifically, for absorbing light rays incident from the adhesive layer 12 along the thickness direction of the light-blocking layer 11, so as to further improve the light-shielding performance of the light-shielding assembly 10. In a specific embodiment, the material of the light-blocking layer 11 is black PET (Polyester resin, black). Among them, the ink applied to the light-blocking layer 11 is black ink to absorb various colors of light. Since the black PET has a crystalline polymer structure, it has a light-impermeable characteristic, so that the light-shielding layer 11 has good light-shielding performance in both the planar direction of the light-shielding layer 11 and the thickness direction of the light-shielding layer 11. In an embodiment, the material of the light-blocking layer 11 may be an ABS (Acrylonitrile Butadiene Styrene) composite material, which has the characteristics of high strength, good toughness and easy processing, and also has a matte property, so that the light-blocking layer 11 has good light-shielding performance in both the plane direction along the light-blocking layer 11 and the thickness direction along the light-blocking layer 11. In one embodiment, black nylon may be adhered to the opposite surfaces of the light-blocking layer, and the black nylon is used for absorbing light along the thickness direction of the light-blocking layer 11.

Optionally, toner is uniformly distributed in the adhesive layer 12, wherein the toner is composed of bonding resin, carbon black, a charge control agent, an external additive and the like, and has good light shielding performance. Toner is uniformly distributed in the bonding layer 12, so that on one hand, the internal structure of the bonding layer is light-tight, and on the other hand, the bonding layer can be fully bonded and fixed with the light-shielding layer 11, the lens 40 and the fixing plate 50, so that gaps are prevented from being formed between the bonding layer 12 and the light-shielding layer 11, between the bonding layer 12 and the lens 40, and between the bonding layer 12 and the fixing plate 50, and crosstalk is caused between the light-emitting module 20 and the light-sensitive receiving module 30. In one embodiment, the adhesive layer 12 may be a double-sided adhesive tape, which is convenient and thin, so that the adhesive layer 12 has better light shielding performance in the planar direction.

In other embodiments, the adhesive layer 12 may be liquid glue, but the liquid glue has strong fluidity and is easily diffused to the light emitting module 20 or the light receiving module 30, so as to affect the function of the light emitting module 20 or the light receiving module 30; the adhesive layer 12 may also be solid glue, but due to poor adhesion of the solid glue, a gap is easily generated between the lens 40 and the fixing plate 50, so that crosstalk occurs between the light emitting module 20 and the photoreception receiving module 30. Therefore, in general, no glue or solid glue is selected for the adhesive layer 12.

Referring to fig. 12, fig. 12 is a cross-sectional view of a variation of the shading assembly shown in fig. 11. In this embodiment, the light shielding assembly 10 may include a light-shielding layer 11 and two adhesive layers 12, where the two adhesive layers 12 are attached and fixed to two opposite side surfaces of the light-shielding layer 11. The surfaces of the two adhesive layers 12 departing from the isolation layer are respectively attached and fixed with the lens 40 and the fixing plate 50. In an embodiment, the number of the light-blocking layers 11 can be adjusted according to actual requirements. For example, the number of the light-blocking layer 11 may be two (as shown in fig. 12), three, or four, and is not particularly limited herein.

Referring to fig. 13 and 14, fig. 13 is a schematic cross-sectional view of a further variation of the shutter assembly shown in fig. 11, and fig. 14 is a schematic cross-sectional view of a further variation of the shutter assembly shown in fig. 11. Optionally, at least one fixing groove 111 is formed in the surface of the light-blocking layer 11, which is coated with ink, a surface of one side of the adhesive layer 12 is attached to the ground of the fixing groove 111, and a surface of the adhesive layer 12, which is away from the ground of the fixing groove 111, is attached to the lens 40, so that the light-blocking assembly 10 can be attached to and fixed to the lens 40 and the fixing plate 50, and the surface of the light-blocking layer 11 can be attached to the lens 40 and the fixing plate 50 as much as possible, so as to reduce gaps between the light-blocking layer 11 and the lens. The light-blocking layer 11 has good light-blocking performance in the plane direction of the light-blocking layer 11 or in the thickness direction of the light-blocking layer 11, so that most of light-blocking requirements can be met by the light-blocking layer 11. Even if light can pass through the adhesive layer 12 between the light-blocking layer 11 and the lens 40 or the adhesive layer 12 between the light-blocking layer 11 and the fixing plate 50, the light-blocking performance of the light-blocking assembly 10 can be ensured because the adhesive layer 12 has good light-blocking properties in the planar direction of the adhesive layer 12. For example, the fixing grooves 111 on the ink-coated side surface of the light-blocking layer 11 may be two (as shown in fig. 14), three, or four. For example, the first and second substrates may be arranged in parallel, alternately, or in first and second order, which are not exhaustive.

According to the shading component 10 provided by the application, the light isolating layers 11 and the bonding layers 12 are alternately arranged in a stacked manner, and the bonding layers 12 are arranged on the two opposite side surfaces of the shading component 10, so that the shading component 10 can be attached and fixed to the lens 40 and the fixing plate 50; the light-blocking layer 11 is made of opaque black PET material, so that the light-blocking layer 11 has good light-blocking performance, and the surfaces of the two opposite sides of the light-blocking layer 11 are coated with ink, so that the light-blocking layer 11 can absorb light rays in the thickness direction of the light-blocking layer 11; in addition, the toner is uniformly distributed in the adhesive layer 12, so that the light-blocking layer 11 has good light-blocking performance along the thickness direction of the light-blocking layer 11, and even if light can pass through the adhesive layer 12 along the thickness direction, the light can be absorbed by the light-blocking layer 11 after being reflected. The light shading component 10 provided by the application can cut off the light path of the light emitting module 20 and the light sensing receiving module 30.

The light emitting module 20 is configured to emit a beam of light waves to a target object, the light receiving module 30 is configured to receive light waves reflected by the target object, and a phase change between a light wave signal emitted by the light emitting module 20 and a reflected light wave signal received by the light receiving module 30 is utilized to measure a distance between an electronic device and the target object. Wherein, since the infrared ray has a good ability to penetrate the cloud, the light wave emitted by the light emitting module 20 is the infrared ray modulated by high frequency to improve the measurement accuracy.

The lens 40 is used for protecting the light emitting module 20 and the light receiving module 30. Specifically, the light emitting module 20 and the light receiving module 30 are located on the same side of the lens 40. The shading component 10 is located between the light emitting module 20 and the light receiving module 30 and is fixed with the lens 40 by the adhesive layer 12, so as to cut off the light path between the light emitting module 20 and the light receiving module 30.

The bracket 60 is used for fixing the light emitting module 20 and the light sensing receiving module 30. Specifically, the light emitting module 20 and the light receiving module 30 are fixed to a side surface of the bracket 60 facing the lens 40 and are arranged side by side.

The fixing plate 50 is spaced from and parallel to the lens 40, so that the adhesive layer 12 of the shading assembly 10 facing away from the lens 40 can be sufficiently attached to and fixed on the fixing plate 50. The light emitting module 20 is accommodated in the first through hole 51, and the light receiving module 30 is accommodated in the second through hole 52, so that on one hand, the light emitting module 20 and the light receiving module 30 are isolated, and on the other hand, the light emitting module 20 and the light receiving module 30 are protected.

The TOF camera 100 further includes a foam 70, and the light emitting module 20 and the light sensing receiving module 30 are respectively fixed to the fixing plate 50 by bonding. Alternatively, the foam 70 may include a first foam 71 and a second foam 72, the first foam 71 may be cylindrical, an inner surface of the first foam 71 is bonded to the light emitting module 20, and a surface of the first foam 71 facing away from the light emitting module 20 is bonded to an inner surface of the first through hole 51, so that the light emitting module 20 is held and fixed to the fixing plate 50. The second foam 72 may be cylindrical, the inner surface of the second foam 72 is bonded to the photosensitive receiving module 30, and the surface of the second foam 72 away from the photosensitive receiving module 30 is bonded to the inner surface of the second through hole 52, so that the photosensitive receiving module 30 is held and fixed to the fixing plate 50.

The TOF camera 100 further includes a circuit board 80 disposed on a side of the bracket 60 away from the fixing plate 50 and electrically connected to the light emitting module 20 and the light sensing receiving module 30, respectively.

The TOF camera 100 further includes a processor 90 fixed on the circuit board, wherein the processor 90 is configured to calculate a flight time from the light emitting module 20 to the light receiving module 30, and further calculate a flight distance of the light. Wherein the distance of the electronic device 2000 from the target object is equal to half of the flight distance.

Specifically, the light emitting module 20 receives an instruction of the processor 90 to emit a probe beam and emits the probe beam, the probe beam passes through the lens 40 to reach the surface of the target object and generate reflection, the light receiving module 30 receives the reflected probe beam, and the processor 90 measures the distance between the electronic device 2000 and the target object by using the phase change between the probe beam emitted by the light emitting module 20 and the reflected probe beam received by the light receiving module 30.

It can be understood that the probe light beam emitted from the light emitting module 20 is wide-angle and divergent, and if there is no light shielding component 10 between the light emitting module 20 and the photoreception receiving module 30, or the gap between the light shielding component 10 and the lens 40, or the gap between the light shielding component 10 and the fixing plate 50, the probe light beam can reach directly, or can reach the photoreception receiving module 30 through the gap between the light shielding component and the lens 40 or the gap between the light shielding component 10 and the fixing plate 50, so that the measurement result is inaccurate.

The TOF camera 100 provided by the present application is configured such that the light shielding assembly 10 is located between the light emitting module 20 and the light receiving module 30, and the adhesive layer 12 of the light shielding assembly 10 is respectively adhesively connected to the lens 40 and the fixing plate 50, so as to avoid a gap between the light shielding layer 11 and the lens 40 and the fixing plate 50. In addition, the inside of the bonding layer 12 is uniformly distributed with toner, so that light rays are difficult to penetrate through the bonding layer 12; the opposite surfaces of the light-blocking layer 11 are coated with ink so that the light-blocking layer 11 can absorb light reaching the light-blocking layer 11. The TOF camera 100 provided by the application can cut off the light path of the light emitting module 20 and the light receiving module 30, and can keep the consistency of the lens 40 in the TOF camera 100.

The above description is only a part of the embodiments of the present application, and not intended to limit the scope of the present application, and all equivalent devices or equivalent processes performed by the content of the present application and the attached drawings, or directly or indirectly applied to other related technical fields, are also included in the scope of the present application.

Claims (13)

1. A shade assembly, comprising,

the two opposite side surfaces of the light isolating layer are coated with ink;

the inside of the adhesive layer is uniformly distributed with powdered ink;

the light-isolating layers and the bonding layers are alternately arranged in a stacked mode, any one of the light-isolating layers is located between two adjacent bonding layers, and the surface, coated with ink, of each light-isolating layer is attached to the bonding layers.

2. The shading assembly of claim 1, wherein the light barrier layer is at least one layer and the adhesive layer is at least two layers.

3. A shading assembly according to claim 1 or 2, wherein the adhesive layer is a double sided tape.

4. The shading assembly according to claim 1 or 2, wherein the material of the light-blocking layer is black PET or ABS composite material.

5. A TOF camera, characterized by comprising the shading component, the light emitting module, the photosensitive receiving module and the lens according to any one of claims 1 to 4, wherein the light emitting module and the photosensitive receiving module are positioned on the same side of the lens, and the shading component is positioned between the light emitting module and the photosensitive receiving module and is attached to the lens through the bonding layer and used for cutting off a light path between the light emitting module and the photosensitive receiving module.

6. The TOF camera according to claim 5, further comprising a fixing plate, wherein the fixing plate is provided with a first through hole for accommodating the light emitting module and a second through hole for accommodating the light sensing receiving module, so as to fix the light emitting module and the light sensing receiving module.

7. The TOF camera according to claim 6, wherein the fixing plate is spaced apart from and parallel to the lens, and the light shielding assembly is attached to the fixing plate by an adhesive layer facing away from the lens for blocking a light path between the light emitting module and the light sensing receiving module.

8. The TOF camera according to claim 7, further comprising a mount to which the light emitting module and the light sensing receiving module are secured; the support is fixedly connected with the surface of the fixing plate, which is far away from the lens, and is used for supporting and fixing the fixing plate.

9. The TOF camera according to claim 8, further comprising a circuit board disposed on a side of the bracket facing away from the fixing plate and electrically connected to the light emitting module and the light sensing receiving module, respectively.

10. The TOF camera of claim 9, further comprising a processor affixed to the circuit board for calculating a time of flight of light rays emitted from the light emitting module to the light receiving module.

11. The TOF camera according to claim 6, further comprising foam, wherein the light emitting module and the light sensing receiving module are respectively fixed to the fixing plate by bonding through the foam.

12. A camera module comprising a TOF camera, an RGB camera, a flash and a wide angle camera according to any one of claims 5 to 11.

13. An electronic device, comprising the camera module according to claim 12 and a housing, wherein the camera module is accommodated in the housing and partially exposed outside the housing.

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