CN209358638U - A kind of TOF module and camera module - Google Patents

Abstract

The utility model discloses a kind of TOF module and camera modules to protect light source unit from extraneous collision and moist influence by the way that layer of transparent protective layer is arranged on light source unit；Solve the problems, such as be in the prior art the light source unit of TOF module and camera module directly it is exposed outside, be easy to be influenced by adverse circumstances such as extraneous collision and humidities.

Description

A kind of TOF module and camera module

Technical field

The utility model relates to TOF (flight time, Time of Flight) technical field more particularly to a kind of TOF moulds Block and camera module.

Background technique

TOF is the abbreviation of Time of Flight, is literal translated as the flight time, by continuously transmitting light pulse to target, so Receive the light that returns from object with sensor afterwards, by detect flight (round-trip) time of these transmittings and reception light pulse come To object distance.

Currently, being by sensor and VCSEL(vertical cavity surface laser emitter in TOF module and camera module) it is incorporated in Together, VCSEL emits equipment as the signal of laser, directly it is exposed outside, be easy severe by extraneous collision and humidity etc. Environment influences.

Utility model content

The utility model provides a kind of TOF module and camera module, passes through and layer of transparent is arranged on light source unit protects Sheath protects light source unit from extraneous collision and moist influence.

The above-mentioned technical purpose of the utility model is achieved through the following technical solutions:

A kind of TOF module, comprising: light source unit, for issuing the laser irradiation of preset wavelength to object；The light source Transparent protective layer is provided with above unit；Photosensitive processing unit, for receiving the reflected light of object, to obtain object distance The range information of module.

Using the above structure, transparent protective layer is set on light source unit, protects light source unit.

It advanced optimizes as the transparent protective layer is at least one of transparent glue, transparent outer cover.

It advanced optimizes as the light source unit includes laser emitter, and the transparent protective layer is located at laser emitter On.

It advanced optimizes as the laser emitter is vertical cavity surface laser emitter.

Using the above structure, the not instead of speckle or coding pattern of TOF technology transmitting, the light of area source, certain Be not in a large amount of decaying apart from interior light, make it possible to apply at a distance, image it in mobile phone postposition so as to apply In.

It advanced optimizes as the photosensitive processing unit includes photosensitive subelement and image procossing subelement；It is described photosensitive Subelement is used to receive the reflected light signal of object, described image handle subelement to incident light and reflected light signal at It manages to obtain the range information of object spacing module.

It advanced optimizes as the photosensitive subelement includes cmos image sensor.

Using the above structure, the power consumption of cmos image sensor is much smaller than the power consumption of ccd sensor, is applied to TOF just Machine is possibly realized hand in hand.

It advanced optimizes as the photosensitive processing unit further includes filter element, and the reflected light of the object passes through filter Optical element enters cmos image sensor.

It advanced optimizes as the filter element is narrow band filter.

Using the above structure, the narrow band filter near the light receiver end of module, which is arranged in, can effectively filter veiling glare, It avoids working to module and generates interference.

It advanced optimizes as the TOF module has at least one connector, is connected with external signal.

Using the above structure, it is convenient for TOF module and external connection.

It advanced optimizes as a kind of camera module, including camera lens and above-mentioned TOF module；The camera lens is located at photosensitive On the photosensitive path of subelement.

In conclusion the utility model has the following beneficial effects:

The utility model provides a kind of TOF module and camera module, passes through and layer of transparent is arranged on light source unit protects Sheath protects light source unit from extraneous collision and moist influence；Solve the problems, such as it is TOF module and to take the photograph in the prior art As the light source unit of mould group directly it is exposed outside, be easy to be influenced by adverse circumstances such as extraneous collision and humidities.

Detailed description of the invention

Fig. 1 is the schematic diagram of light source unit in the prior art.

Fig. 2 is the schematic top plan view of the TOF module of the utility model.

Fig. 3 is the schematic diagram of light source unit in one embodiment of the utility model, is mainly used for illustrating transparent protective layer.

Fig. 4 is the schematic diagram of the structural block diagram of TOF module in one embodiment of the utility model.

Fig. 5 is the schematic diagram of TOF module routine in one embodiment of the utility model.

Fig. 6 is the schematic side view of the camera module of the utility model.

Appended drawing reference: 1, light source unit；2, photosensitive processing unit；3, laser emitter；4, transparent protective layer；5, camera lens； 6, photosensitive subelement；7, filter element；8, connector；9, image procossing subelement.

Specific embodiment

In order to be more clearly understood that the above objects, features, and advantages of the utility model, with reference to the accompanying drawing and have The utility model is further described in detail in body embodiment.It should be noted that in the absence of conflict, the application Embodiment and embodiment in feature can be combined with each other.

Many details are explained in the following description in order to fully understand the utility model, still, this is practical Novel to be implemented using other than the one described here other modes, therefore, the protection scope of the utility model is simultaneously It is not limited by the specific embodiments disclosed below.

In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, with reference to embodiments with it is attached Figure is described in further detail the TOF module of the prior art and the TOF module and camera module of the utility model.

The prior art: as shown in Figure 1, in existing TOF module and camera module, laser emitter 3 is fixed on camera shooting mould In group, directly it is exposed outside, be easy to be influenced by adverse circumstances such as extraneous collision and humidities.

The embodiments of the present invention are described below.

Embodiment 1

As shown in Fig. 2, Fig. 3, Fig. 4, Fig. 6, a kind of TOF module, comprising: light source unit 1, for issuing swashing for preset wavelength Illumination is mapped to object；Transparent protective layer 4 is provided with above the light source unit 1；Photosensitive processing unit 2, for receiving target The reflection signal of object, to obtain the range information of object spacing module.

Preferably, the transparent protective layer 4 is at least one of transparent glue, transparent outer cover.

Specifically, the photosensitive processing unit 2 includes photosensitive subelement 6 and image procossing subelement 9；Photosensitive subelement 6 It is electrically connected with image procossing subelement 9.The photosensitive subelement 6 is used to receive the reflected light signal of object, described image Processing subelement 9 is handled incident light and reflected light signal to obtain the range information of object spacing module；Light source list Member 1 is connected with each other with photosensitive processing unit 2.

Preferably, the laser for the preset wavelength that light source unit 1 issues can be infrared light, be also possible to the light of other wavelength Line.

Preferably, the light source unit 1 includes laser emitter 3, and the transparent protective layer 4 is located on laser emitter 3； Further, the laser emitter 3 is vertical cavity surface laser emitter.The transmitting of TOF technology is not speckle or coding pattern, and It is the light of area source, light is not in a large amount of decaying in certain distance, make it possible to apply at a distance, so as to It applies among the camera shooting of mobile phone postposition.

Preferably, the photosensitive subelement 6 includes cmos image sensor；The power consumption of cmos image sensor is much smaller than The power consumption of ccd sensor makes it possible TOF applied to portable telephone.

Preferably, the TOF module has at least one connector 8, is connected with external signal.

Embodiment 2

The present embodiment is on the basis of embodiment 1, to be illustrated to the filter element in photosensitive processing unit 2.

As shown in figs. 4 and 6, the photosensitive processing unit 2 further includes filter element 7, and the reflected light of the object passes through Filter element 7 enters cmos sensor；The filter element 7 is between photosensitive subelement 6 and camera lens 5.

Preferably, the filter element 7 is narrow band filter；The optical signal for only object being allowed to be reflected back passes through, and blocks The veiling glare of other interference enters photosensitive subelement 6.

As shown in figure 5, TOF module routine provided by the utility model: firstly, being swashed by what transparent protective layer 4 was protected Optical transmitting set 3 launches the laser with preset wavelength, is reflected back TOF module again in laser irradiation to object；It is reflected back TOF Light pass through filter element 7 filtering, enter back into photosensitive subelement 6 and photoelectric conversion carried out by cmos sensor, will have The optical signal of measured target depth information is converted into electric signal；Image procossing subelement receives and processes photosensitive subelement 6 and converts Made of electric signal, generate original data.

The utility model provides a kind of camera module, as shown in fig. 6, including camera lens 5 and above-mentioned TOF module；The mirror First 5 are located on the photosensitive path of photosensitive subelement 6.

The utility model provides a kind of TOF module and camera module, passes through and layer of transparent is arranged on light source unit protects Sheath protects light source unit from extraneous collision and moist influence；Solve the problems, such as it is TOF module and to take the photograph in the prior art As the light source unit of mould group directly it is exposed outside, be easy to be influenced by adverse circumstances such as extraneous collision and humidities.

Above-mentioned specific embodiment is only the explanation to the utility model, is not limitations of the present invention, this Field technical staff can according to need after reading this specification makes without creativeness the present embodiment and embodiment The modification of contribution, but as long as all by the protection of Patent Law in the scope of the claims of the utility model.

Claims (10)

1. a kind of TOF module characterized by comprising

Light source unit, for issuing the laser irradiation of preset wavelength to object；Transparent guarantor is provided with above the light source unit Sheath；

Photosensitive processing unit, for receiving the reflected light of object, to obtain the range information of object spacing module.

2. TOF module according to claim 1, which is characterized in that the transparent protective layer is transparent glue, transparent outer cover At least one of.

3. TOF module according to claim 1, which is characterized in that the light source unit includes laser emitter, described Bright protective layer is located on laser emitter.

4. TOF module according to claim 3, which is characterized in that the laser emitter is vertical cavity surface Laser emission Device.

5. TOF module according to claim 1, which is characterized in that the photosensitive processing unit include photosensitive subelement with Image procossing subelement；The photosensitive subelement is used to receive the reflected light signal of object, and described image handles subelement pair Incident light and reflected light signal are handled to obtain the range information of object spacing module.

6. the TOF module according to claim 5, which is characterized in that the photosensitive subelement includes cmos image Sensor.

7. TOF module according to claim 6, which is characterized in that the photosensitive processing unit further includes filter element, institute The reflected light for stating object enters cmos image sensor by filter element.

8. TOF module according to claim 7, which is characterized in that the filter element is narrow band filter.

9. TOF module according to claim 1, which is characterized in that the TOF module has at least one connector, with External signal is connected.

10. a kind of camera module, which is characterized in that including TOF described in any claim in camera lens and claim 5-8 Module；The camera lens is located on the photosensitive path of photosensitive subelement.