CN108462774A - A kind of structure light module and mobile terminal - Google Patents
A kind of structure light module and mobile terminal Download PDFInfo
- Publication number
- CN108462774A CN108462774A CN201810403910.2A CN201810403910A CN108462774A CN 108462774 A CN108462774 A CN 108462774A CN 201810403910 A CN201810403910 A CN 201810403910A CN 108462774 A CN108462774 A CN 108462774A
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- Prior art keywords
- light source
- source assembly
- atmospheric pressure
- pressure value
- cavity
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
- H04M1/72454—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions according to context-related or environment-related conditions
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Environmental & Geological Engineering (AREA)
- Human Computer Interaction (AREA)
- Computer Networks & Wireless Communication (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Semiconductor Lasers (AREA)
Abstract
An embodiment of the present invention provides a kind of structure light module and mobile terminals, wherein the structure light module includes:Light source assembly, holder, diffusive optical element, pressure sensor, and the control chip that is connect with light source assembly;Pressure sensor is arranged in connecting the airtight cavity formed with diffusive optical element by light source assembly, holder, and is connect with control chip;Pressure sensor is used to monitor the first atmospheric pressure value in airtight cavity, and the first atmospheric pressure value is sent to control chip;When the first atmospheric pressure value is less than predetermined threshold value, control chip controls light source assembly reduces luminous power.The embodiment of the present invention can be by the airtight cavity of structure light module, it is provided with pressure sensor, when the first atmospheric pressure value in pressure sensor monitoring to airtight cavity is less than predetermined threshold value, controlling chip controls light source assembly reduces luminous power, to effectively prevent structure light module in abnormal operating state, the case where infrared laser signal can damage human body.
Description
Technical field
The present invention relates to field of photoelectric technology, more particularly to a kind of structure light module and a kind of mobile terminal.
Background technology
Infrared laser emission module using very extensive, such as:Face recognition technology, and 3D (Three-Dimensions, three
Dimension) scanning, AR (Augmented Reality, augmented reality) and VR (Virtual Reality, virtual reality) etc..But it is sent out
The black light gone out in application process can generation harm safe to the human body.
If the infrared laser signal direct projection gone out produced by lasing fluorescence chip in Infrared laser emission module, can to human body
Injury can be generated to human body.As shown in Figure 1, be a kind of Infrared laser emission modular structure block diagram of the prior art, it is specific to wrap
It includes:First laser chip 101, the first module bracket 102, the first diffuser plate 103 and first circuit board 104.As shown in Fig. 2,
It is another Infrared laser emission modular structure block diagram in the prior art, can specifically include:Second laser chip 201,
Two module brackets 202, collimating mirror 203, the second diffuser plate 204 and second circuit board 205.Wherein, 101 He of first laser chip
Second laser chip 201 is for emitting infrared laser signal.In two kinds of above-mentioned Infrared laser emission modules, when the first diffuser plate
103 when either the second diffuser plate 204 falls or breaks, and infrared laser signal direct projection to human body in order to prevent can only select
It artificially goes to close first laser chip 101 or second laser chip 201, but manual operation is difficult to and timely responds to, and makes
At some potential safety problems.
Invention content
In view of the above problems, a kind of structure light module of offer of the embodiment of the present invention and mobile terminal, to solve structure optical mode
Group is under abnormal operating state, the problem of may being damaged with human body.
In order to solve the above-mentioned technical problem, the invention is realized in this way:
In a first aspect, an embodiment of the present invention provides a kind of structure light modules, including:Light source assembly, holder, diffusion optics
Element, pressure sensor, and the control chip that is connect with the light source assembly;
The pressure sensor setting is connected with the diffusive optical element and is formed by the light source assembly, the holder
Airtight cavity in, and connect with the light source assembly;
The pressure sensor is used to monitor the first atmospheric pressure value in the airtight cavity, and by first atmospheric pressure value
It is sent to the control chip;
When first atmospheric pressure value is less than predetermined threshold value, light source assembly reduces light work(described in the control chip controls
Rate.
Second aspect, the embodiment of the present invention additionally provide a kind of mobile terminal, including above-mentioned structure light module.
In embodiments of the present invention, it connects to form airtight cavity with diffusive optical element by light source assembly, holder, in institute
The control chip for being provided in airtight cavity and being connect with the light source assembly is stated, and pressure sensing is connect with the control chip
Device, the pressure sensor can be used for detecting the first atmospheric pressure value of airtight cavity.When the structure light module is in improper
When working condition, first atmospheric pressure value can become smaller.The pressure sensor can be sent to the control core with the first atmospheric pressure value
Piece controls light source described in chip controls when described when pressure sensor detects that first atmospheric pressure value is less than predetermined threshold value
Component reduces luminous power, or control light source assembly switches to closed state, so as to avoid structure light module in improper work
Make under state, the case where optical signal launched can damage human body.
Description of the drawings
Fig. 1 is a kind of infrared laser modular structure block diagram of the prior art;
Fig. 2 is another infrared laser modular structure block diagram of the prior art;
Fig. 3 is a kind of structure diagram of structure light module embodiment one of the present invention;
Fig. 4 is a kind of structure diagram of structure light module embodiment two of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained without creative efforts
Example, shall fall within the protection scope of the present invention.
With reference to Fig. 3, shows a kind of structure diagram of structure light module embodiment one of the present invention, can specifically include:
Light source assembly 301, holder 302, diffusive optical element 303, pressure sensor 304, and connect with the light source assembly 301
Control chip (not shown);
The setting of the pressure sensor 304 is by the light source assembly 301, the holder 302 and diffusion optics member
In the airtight cavity 305 that the connection of part 303 is formed, and it is connect with the control chip;
The pressure sensor 304 is used to monitor the first atmospheric pressure value in the airtight cavity 305, and by described first
Atmospheric pressure value is sent to the control chip;
When first atmospheric pressure value is less than predetermined threshold value, light source assembly 301 reduces light described in the control chip controls
Power.
Control chip can be used for storing predetermined threshold value, and the data received from pressure sensor 304 may be used
It is compared with the predetermined threshold value of storage.
When structure light module be in abnormal operating state (such as:Diffusive optical element 303 is fallen, or damaged
The case where) when, the air pressure in airtight cavity 305 can become smaller, and pressure sensor 304 can send the first atmospheric pressure value detected
To control chip.When pressure sensor 304 detects that the first atmospheric pressure value of airtight cavity 305 is less than predetermined threshold value, core is controlled
Piece, which controls light source assembly 301 connected to it, reduces luminous power, and the optical signal that light source assembly 301 is sent out is made not caused to human body
Damage, or control light source assembly 301 switch to closed state (luminous power of light source assembly 301 is 0 at this time), to avoid light
Source component 301 accidentally injures human body.
In embodiments of the present invention, it is formed by the connection of light source assembly 301, holder 302 and diffusive optical element 303 closed
Cavity 305, is provided with the control chip being connect with the light source assembly 301 in the airtight cavity 305, and with control core
The pressure sensor 304 of piece connection, the pressure sensor 304 can be used for detecting the first atmospheric pressure value of airtight cavity 305.When
When the structure light module is in abnormal operating state, first atmospheric pressure value can become smaller.The pressure sensor 304 can be with
The first atmospheric pressure value detected is sent to control chip, when described when pressure sensor 304 detects first atmospheric pressure value
When less than predetermined threshold value, controlling light source assembly 301 described in chip controls reduces luminous power, or control light source assembly 301 switches
To closed state, so as to avoid structure light module under abnormal operating state, the optical signal launched can cause human body
The case where damage.
In a preferred embodiment, the light source assembly 301 may include:The circuit board being connect with the holder 302
3011;And connect with the circuit board 3011, and the light source component 3012 in the airtight cavity 305.
The circuit board 3011 can be PCB (Printed Circuit Board, printed circuit board), may be used
SMT processes the mode of (Surface Mount Technology, surface mounting technology) or plug-in unit processing, by light source component
3012 are mounted in the circuit board 3011.
In a preferred embodiment, the light source component 3012 is vertical cavity surface emitting laser, infrared sharp for emitting
Optical signal.
It should be noted that light source component 3012 is vertical cavity surface emitting laser (VCSEL, Vertical Cavity
Surface Emitting Laser) it is only used as a kind of preferred embodiment, in practical applications, it is only necessary to 3012 energy of light source component
Infrared laser signal is enough sent out, to the illumination mode of light source component 3012, component structure, component type and light source member
The shape for the optical signal that part 3012 is sent out is not construed as limiting.
The wavelength of the infrared laser signal can be between 750 nanometers to 1 millimeter.
In an advantageous embodiment, the diffusive optical element 303 is diffraction plate or diffuser plate.
The infrared laser signal that diffusive optical element 303 can launch light source assembly 301 causes light diffusion effect, increases
The beam angle of big infrared laser signal.
In a preferred embodiment, the holder 302 is provided with the through-hole for injecting gas to the airtight cavity 305
306;Gas enters the airtight cavity 305 from the through-hole 306, and the first atmospheric pressure value in the airtight cavity 305 is increased
To preset initial value.
The through-hole 306 can be connected to the inner side and outer side of the holder 302, can be given by using the through-hole 306
The injection of the airtight cavity 305 gas (such as:Inert gas, air etc.), increase the air pressure in the airtight cavity 305, it will
The first atmospheric pressure value in the airtight cavity 305 increases to preset initial value;Wherein, the preset initial value is more than default threshold
Value.
In a preferred embodiment, the structure light module can further include the sealing for closing the through-hole 306
Plug 307.
The sealing-plug 307 be used for it is described first atmospheric pressure value is increased into preset initial value after, described in closing
Close to the one end in 302 outside of the holder in through-hole 306, prevents gas to be expelled to 302 outside of holder by through-hole 306, reduce
Air pressure in the airtight cavity 305.
In embodiments of the present invention, it is formed by the connection of light source assembly 301, holder 302 and diffusive optical element 303 closed
Cavity 305, is provided with the control chip being connect with the light source assembly 301 in the airtight cavity 305, and with control core
The pressure sensor 304 of piece connection, the pressure sensor 304 can be used for detecting the first atmospheric pressure value of airtight cavity 305.Institute
It states holder 302 to be provided with for the through-hole 306 to the injection gas of the airtight cavity 305, gas enters institute from the through-hole 306
Airtight cavity 305 is stated, the first atmospheric pressure value in the airtight cavity 305 is increased into preset initial value;Wherein, described default first
Initial value is more than predetermined threshold value.It is described first atmospheric pressure value is increased into preset initial value after, pass through sealing-plug 307, envelope
It closes in the through-hole 306 close to the one end in 302 outside of the holder, prevents structure light module in normal operation, first
The case where atmospheric pressure value can become smaller.When the structure light module is in abnormal operating state, first atmospheric pressure value can become smaller.
The first atmospheric pressure value detected can be sent to control chip by the pressure sensor 304, work as pressure sensor 304 when described
When detecting that first atmospheric pressure value is less than predetermined threshold value, controlling light source assembly 301 described in chip controls reduces luminous power, or
Control light source assembly 301 switches to closed state, so as to avoid structure light module under abnormal operating state, launches
The case where optical signal can damage human body.
With reference to Fig. 4, shows a kind of structure diagram of structure light module embodiment two of the present invention, can specifically include:
Light source assembly 401, holder 402, diffusive optical element 403, pressure sensor 404, and connect with the light source assembly 401
Control chip (not shown);
The setting of the pressure sensor 404 is by the light source assembly 401, the holder 402 and diffusion optics member
In the airtight cavity 405 that the connection of part 403 is formed, and it is connect with the light source assembly 401;
The pressure sensor 404 is used to monitor the first atmospheric pressure value in the airtight cavity 405, and by described first
Atmospheric pressure value is sent to the control chip;
When first atmospheric pressure value is less than predetermined threshold value, light source assembly 401 reduces light described in the control chip controls
Power.
Control chip can be used for storing predetermined threshold value, and the data received from pressure sensor 404 may be used
It is compared with the predetermined threshold value of storage.
When structure light module be in abnormal operating state (such as:Diffusive optical element 403 is fallen, or damaged
The case where) when, the air pressure in airtight cavity 405 can become smaller, and pressure sensor 404 can send the first atmospheric pressure value detected
To control chip, when pressure sensor 404 detects that the atmospheric pressure value of airtight cavity 405 is less than predetermined threshold value, control chip can
Luminous power is reduced to control light source assembly 401 connected to it, the optical signal that light source assembly 401 is sent out is made not caused to human body
Damage, or control light source assembly 401 switch to closed state (luminous power of light source assembly 401 is 0 at this time), to avoid light
Source component 401 accidentally injures human body.
In a preferred embodiment, the light source assembly 401 may include:The circuit board being connect with the holder 402
4011;And connect with the circuit board 4011, and the light source component 4012 in the airtight cavity 405.
The circuit board 4011 can be PCB (Printed Circuit Board, printed circuit board), may be used
SMT processes the mode of (Surface Mount Technology, surface mounting technology) or plug-in unit processing, by light source component
4012 are mounted in the circuit board 4011.
In a preferred embodiment, the light source component 4012 is vertical cavity surface emitting laser, infrared sharp for emitting
Optical signal.
It should be noted that light source component 4012 is vertical cavity surface emitting laser (VCSEL, Vertical Cavity
Surface Emitting Laser) it is only used as a kind of preferred embodiment, in practical applications, it is only necessary to 4012 energy of light source component
Infrared laser signal is enough sent out, to the illumination mode of light source component 4012, component structure, component type and light source member
The shape for the optical signal that part 4012 is sent out is not construed as limiting.
The wavelength of the infrared laser signal can be between 750 nanometers to 1 millimeter.
In an advantageous embodiment, the diffusive optical element 403 is diffraction plate or diffuser plate.
The infrared laser signal that diffusive optical element 403 can launch light source assembly 401 causes light diffusion effect, increases
The beam angle of big infrared laser signal.
In a preferred embodiment, the structure light module can further include collimation optics 406;The collimating optics
The setting of element 406 is connect between the diffusive optical element 403 and the light source assembly 401, and with the holder 402.
The infrared laser signal that light source assembly 401 emits first passes through collimation optics 406, is collimated to optical signal,
So that each light path in infrared laser signal is mutually parallel.After infrared laser signal first penetrates collimation optics 406, then pass through
Cross the diffusive optical element 403 so that infrared laser signal can finally obtain better diffusion effect.
In a preferred embodiment, the collimation optics 406 are planoconvex spotlight;
Wherein, the collimation optics 406 are plane, the collimating optics close to the side of the light source assembly 401
Element 406 is convex surface close to the side of the diffusive optical element 403.
In a preferred embodiment, the holder 402 is provided with the through-hole for injecting gas to the airtight cavity 405
407;Gas enters the airtight cavity 405 from the through-hole 407, and the first atmospheric pressure value in the airtight cavity 405 is increased
To preset initial value;Wherein, the preset initial value is more than predetermined threshold value.
The through-hole 407 can be connected to the inner side and outer side of the holder 402, can be given by using the through-hole 407
The injection of the airtight cavity 405 gas (such as:Inert gas, air etc.), increase the air pressure in the airtight cavity 405, it will
The first atmospheric pressure value in the airtight cavity 405 increases to preset initial value.
In a preferred embodiment, the airtight cavity 405 includes:By the light source assembly 401, the holder 402 with
And the first cavity 4051 that the connection of collimation optics 406 is formed;And by the collimation optics 406, the branch
The second cavity 4052 that frame 402 and the diffusive optical element 403 connection are formed.
The through-hole 407 is connected to first cavity 4051 and second cavity 4052;
When the variation of the second atmospheric pressure value of first cavity 4051, the third atmospheric pressure value of second cavity 4052 and institute
It states the second atmospheric pressure value and synchronizes variation.
Since the through-hole 407 is connected to first cavity, 4051 and second cavity 4052 so that gas from through-hole 407 into
Enter the airtight cavity 405, when the first atmospheric pressure value in the airtight cavity 405 is increased to preset initial value, described second
Atmospheric pressure value and the third atmospheric pressure value are also equal to preset initial value simultaneously;When the structure light module is in abnormal operating state
When, i.e., diffusive optical element 403 falls or when damaged condition, and the second atmospheric pressure value becomes smaller immediately, the third atmospheric pressure value
It is synchronized with second atmospheric pressure value immediately to become smaller.Third atmospheric pressure value can be sent to control chip by the pressure sensor 404,
When the third atmospheric pressure value is less than predetermined threshold value, controlling light source assembly 401 described in chip controls reduces luminous power, or by institute
It states light source assembly 401 and switches to closed state.
In a preferred embodiment, the structure light module can further include the sealing for closing the through-hole 407
Plug 408.
The sealing-plug 408 be used for it is described first atmospheric pressure value is increased into preset initial value after, described in closing
Close to the one end in 402 outside of the holder in through-hole 407, prevents gas to be expelled to 402 outside of holder by through-hole 407, reduce
Air pressure in the airtight cavity 405.
In embodiments of the present invention, it is formed by the connection of light source assembly 401, holder 402 and diffusive optical element 403 closed
Cavity 405, is provided with the control chip being connect with the light source assembly 401 in the airtight cavity 405, and with control core
The pressure sensor 404 of piece connection, the pressure sensor 404 can be used for detecting the first atmospheric pressure value of airtight cavity 405.Institute
It states holder 402 to be provided with for the through-hole 407 to the injection gas of the airtight cavity 405, gas enters institute from the through-hole 407
Airtight cavity 405 is stated, the first atmospheric pressure value in the airtight cavity 405 is increased into preset initial value;Wherein, described default first
Initial value is more than predetermined threshold value.It is described first atmospheric pressure value is increased into preset initial value after, pass through sealing-plug 408, envelope
It closes in the through-hole 407 close to the one end in 402 outside of the holder, prevents structure light module in normal operation, first
The case where atmospheric pressure value can become smaller.Between the diffusive optical element 403 and the light source assembly 401, it is provided with and the branch
Frame 402 connects collimation optics 406.By the light source assembly 401, the holder 402 and the diffusive optical element 403
Connect the first cavity 4051 formed;And by the collimation optics 406, the holder 402 and the diffusion
The second cavity 4052 that the connection of optical element 403 is formed.The through-hole 407 is connected to first cavity 4051 and second sky
Chamber 4052.When the structure light module is in abnormal operating state, the second atmospheric pressure value becomes smaller immediately, the third atmospheric pressure value
It is synchronized with second atmospheric pressure value immediately to become smaller.The third atmospheric pressure value detected can be sent to by the pressure sensor 404
Chip is controlled, when the third atmospheric pressure value is less than predetermined threshold value, control chip controls the light source group according to third atmospheric pressure value
Part 401 reduces luminous power, or the light source assembly 401 is switched to closed state, so as to avoid structure light module non-
Under normal operating conditions, the case where optical signal launched can damage human body.
The embodiment of the present invention additionally provides a kind of mobile terminal, which may include the structure in above-described embodiment
Optical mode group.
In a preferred embodiment, mobile terminal may include mobile phone, tablet computer, personal digital assistant, vehicle-mounted computer,
Navigator etc..
In embodiments of the present invention, it connects to form airtight cavity with diffusive optical element by light source assembly, holder, in institute
The control chip for being provided in airtight cavity and being connect with the light source assembly is stated, and the pressure sensing being connect with control chip
Device, the pressure sensor can be used for detecting the first atmospheric pressure value of airtight cavity.The holder is provided with for described close
Closed chamber body injects the through-hole of gas, and gas enters the airtight cavity from the through-hole, by the first gas in the airtight cavity
Pressure value increases to preset initial value;Wherein, the preset initial value is more than predetermined threshold value.First atmospheric pressure value is increased described
Greatly to after preset initial value, by sealing-plug, one end close to the stent outer in the through-hole is closed, structure light is prevented
Module in normal operation, the case where the first atmospheric pressure value can become smaller.In the diffusive optical element and the light source assembly
Between, it is provided with and connect collimation optics with the holder.By the light source assembly, the holder and the diffusion optics
Element connects the first cavity to be formed;And by the collimation optics, the holder and diffusion optics member
Part connects the second cavity to be formed.The through-hole is connected to first cavity and second cavity.When the structure light module
When in abnormal operating state, the second atmospheric pressure value becomes smaller immediately, the third atmospheric pressure value be synchronized with second atmospheric pressure value with
Become smaller.Third atmospheric pressure value can be sent to control chip by the pressure sensor, be preset when the third atmospheric pressure value is less than
When threshold value, controlling light source assembly described in chip controls reduces luminous power, or the light source assembly is switched to closed state, from
And structure light module is avoided under abnormal operating state, the case where optical signal launched can damage human body.
Since mobile terminal includes above-mentioned display module, so describing fairly simple, related place is with reference to above-mentioned
The part of display module embodiment illustrates.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with
The difference of other embodiment, the same or similar parts between the embodiments can be referred to each other.
It should be understood by those skilled in the art that, the embodiment of the embodiment of the present invention can be provided as method, apparatus or calculate
Machine program product.Therefore, the embodiment of the present invention can be used complete hardware embodiment, complete software embodiment or combine software and
The form of the embodiment of hardware aspect.Moreover, the embodiment of the present invention can be used one or more wherein include computer can
With in the computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) of program code
The form of the computer program product of implementation.
The embodiment of the present invention be with reference to according to the method for the embodiment of the present invention, terminal device (system) and computer program
The flowchart and/or the block diagram of product describes.It should be understood that flowchart and/or the block diagram can be realized by computer program instructions
In each flow and/or block and flowchart and/or the block diagram in flow and/or box combination.These can be provided
Computer program instructions are set to all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing terminals
Standby processor is to generate a machine so that is held by the processor of computer or other programmable data processing terminal equipments
Capable instruction generates for realizing in one flow of flow chart or multiple flows and/or one box of block diagram or multiple boxes
The device of specified function.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing terminal equipments
In computer-readable memory operate in a specific manner so that instruction stored in the computer readable memory generates packet
The manufacture of command device is included, which realizes in one flow of flow chart or multiple flows and/or one side of block diagram
The function of being specified in frame or multiple boxes.
These computer program instructions can be also loaded into computer or other programmable data processing terminal equipments so that
Series of operation steps are executed on computer or other programmable terminal equipments to generate computer implemented processing, thus
The instruction executed on computer or other programmable terminal equipments is provided for realizing in one flow of flow chart or multiple flows
And/or in one box of block diagram or multiple boxes specify function the step of.
Although the preferred embodiment of the embodiment of the present invention has been described, once a person skilled in the art knows bases
This creative concept, then additional changes and modifications can be made to these embodiments.So the following claims are intended to be interpreted as
Including preferred embodiment and fall into all change and modification of range of embodiment of the invention.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, article or terminal device including a series of elements not only wrap
Those elements are included, but also include other elements that are not explicitly listed, or further include for this process, method, article
Or the element that terminal device is intrinsic.In the absence of more restrictions, being wanted by what sentence "including a ..." limited
Element, it is not excluded that there is also other identical elements in process, method, article or the terminal device including the element.
It above to a kind of structure light module provided by the present invention and a kind of mobile terminal, is described in detail, herein
In apply specific case principle and implementation of the present invention are described, the explanation of above example is only intended to sides
Assistant solves the method and its core concept of the present invention;Meanwhile for those of ordinary skill in the art, think of according to the present invention
Think, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification should not be construed as pair
The limitation of the present invention.
Claims (10)
1. a kind of structure light module, which is characterized in that including:Light source assembly, holder, diffusive optical element, pressure sensor, with
And the control chip being connect with the light source assembly;
The pressure sensor be arranged connected by the light source assembly, the holder and the diffusive optical element formed it is close
In closed chamber body, and it is connect with the control chip;
The pressure sensor is used to monitor the first atmospheric pressure value in the airtight cavity, and first atmospheric pressure value is sent
To the control chip;
When first atmospheric pressure value is less than predetermined threshold value, light source assembly reduces luminous power described in the control chip controls.
2. structure light module according to claim 1, which is characterized in that further include collimation optics;
The collimation optics are arranged between the diffusive optical element and the light source assembly, and connect with the holder
It connects.
3. structure light module according to claim 1 or 2, which is characterized in that
The holder is provided with the through-hole for injecting gas to the airtight cavity;
Gas enters the airtight cavity from the through-hole, the first atmospheric pressure value in the airtight cavity is increased to default initial
Value;
Wherein, the preset initial value is more than predetermined threshold value.
4. structure light module according to claim 3, which is characterized in that further include:
Sealing-plug for closing the through-hole.
5. structure light module according to claim 2, which is characterized in that
The airtight cavity includes:Formed is connected by the light source assembly, the holder and the collimation optics
One cavity;And connect formed second by the collimation optics, the holder and the diffusive optical element
Cavity;
The through-hole is connected to first cavity and second cavity;
When the variation of the second atmospheric pressure value of first cavity, the third atmospheric pressure value of second cavity and second atmospheric pressure value
Synchronous variation.
6. structure light module according to claim 1 or 2, which is characterized in that the light source assembly includes:
The circuit board being connect with the holder;
And connect with the circuit board, and the light source component in the airtight cavity.
7. structure light module according to claim 6, which is characterized in that
The light source component is vertical cavity surface emitting laser, for emitting infrared laser signal.
8. structure light module according to claim 1 or 2, which is characterized in that
The diffusive optical element is diffraction plate or diffuser plate.
9. structure light module according to claim 2, which is characterized in that
The collimation optics are planoconvex spotlight;
Wherein, the collimation optics are plane close to the side of the light source assembly, and the collimation optics are close to institute
The side for stating diffusive optical element is convex surface.
10. a kind of mobile terminal, which is characterized in that including according to claim 1-9 any one of them structure light modules.
Priority Applications (1)
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CN201810403910.2A CN108462774B (en) | 2018-04-28 | 2018-04-28 | A kind of structure optical mode group and mobile terminal |
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CN201810403910.2A CN108462774B (en) | 2018-04-28 | 2018-04-28 | A kind of structure optical mode group and mobile terminal |
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CN108462774A true CN108462774A (en) | 2018-08-28 |
CN108462774B CN108462774B (en) | 2019-08-20 |
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