CN106101546A - A kind of laser focusing sensor control method and mobile terminal - Google Patents
A kind of laser focusing sensor control method and mobile terminal Download PDFInfo
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- CN106101546A CN106101546A CN201610514860.6A CN201610514860A CN106101546A CN 106101546 A CN106101546 A CN 106101546A CN 201610514860 A CN201610514860 A CN 201610514860A CN 106101546 A CN106101546 A CN 106101546A
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/67—Focus control based on electronic image sensor signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/71—Circuitry for evaluating the brightness variation
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Abstract
The embodiment of the invention discloses a kind of laser focusing sensor control method and mobile terminal, wherein, the method includes: obtaining the incident infrared feeding back to mobile terminal, described incident infrared is launched by described mobile terminal；Detect the light parameter of described incident infrared, and judge whether the light parameter of described incident infrared meets the light parameter preset；If judging, the light parameter of described incident infrared meets described default light parameter, then close described laser focusing sensor.Implement the embodiment of the present invention, it is possible to reduce the laser focusing infrared ray launched of sensor and entered the intensity of photographic head after reflecting.
Description
Technical field
The present invention relates to mobile communication technology field, particularly relate to a kind of laser focusing sensor control method and move eventually
End.
Background technology
Generally, in order to take clear photograph, user first had to focus before taking pictures.The ultimate principle of focusing is
Distance between regulation eyeglass and subject, the focus after the light making subject be reflected is focused on by eyeglass is just fallen
On sensitive chip.
At present, some smart mobile phones introducing laser focusing system is focused.This laser focusing system utilizes and is arranged on
The laser focusing sensor of smart mobile phone launches infrared ray to subject, and this infrared ray is being shot after subject fires back
As head receives, photographic head receives this ultrared time difference by calculating and calculates the distance of subject and photographic head.Intelligence
Auto-focusing just can be realized by mobile phone by this distance.
But, practice finds, utilizes laser focusing sensor to launch infrared ray to detect subject to subject
With the drawback that the distance between photographic head exists is: if subject is closely and is the object that reflexive is stronger, then
The infrared ray meeting major part of laser focusing sensor emission is reflected back and enters into photographic head, and the major part being reflected back is red
Outside line can make the photo shot speckle occur after being caught by photographic head, affects shooting effect.
Summary of the invention
The embodiment of the invention discloses a kind of laser focusing sensor control method and mobile terminal, it is possible to reduce laser pair
The infrared ray that burnt sensor is launched is entered the intensity of photographic head after reflecting.
Embodiment of the present invention first aspect discloses a kind of laser focusing sensor control method, including:
Obtaining the incident infrared feeding back to mobile terminal, described incident infrared is launched by described mobile terminal；
Detect the light parameter of described incident infrared, and judge whether the light parameter of described incident infrared meets pre-
If light parameter；
If judging, the light parameter of described incident infrared meets described default light parameter, then close described laser
Focusing sensor.
Embodiment of the present invention second aspect discloses a kind of mobile terminal, including:
Infrared ray acquiring unit, for obtaining the incident infrared feeding back to described mobile terminal, described incident infrared
Launched by described mobile terminal；
Parameter detecting unit, for detecting the light ginseng of the described incident infrared that described infrared ray acquiring unit obtains
Number；
Parameter judging unit, for judging that the light parameter of described incident infrared that described parameter detecting unit detects is
The no satisfied light parameter preset；
Closing unit, for when the judged result of described parameter judging unit is for being, closes described laser focusing sensing
Device.
In the embodiment of the present invention, acquisition for mobile terminal feeds back to the incident infrared of this mobile terminal, and utilizes and preset
This incident infrared is judged by light parameter, if judged result is this incident infrared is that laser focusing sensor produces
The infrared ray that infrared ray is reflected back, then close this laser focusing sensor.
Visible, in the embodiment of the present invention, judge that the infrared ray feeding back to this mobile terminal is that this moves end at mobile terminal
After the infrared ray that infrared ray produced by the laser focusing sensor of end configuration is reflected back, then close the focusing of this laser and pass
Sensor.Therefore, implement the embodiment of the present invention, reduce after the infrared ray that laser focusing sensor produces is reflected and enter into this and take the photograph
As the intensity of head, simultaneously, it is to avoid the infrared ray that laser focusing sensor produces captured by this photographic head after being reflected thus
Make the photo shot that the generation of speckle phenomenon to occur, improve shooting effect.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, below by use required in embodiment
Accompanying drawing is briefly described, it should be apparent that, the accompanying drawing in describing below is some embodiments of the present invention, general for this area
From the point of view of logical technical staff, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic flow sheet of a kind of laser focusing sensor control method disclosed in the embodiment of the present invention；
Fig. 1 (a) is a kind of smart mobile phone schematic diagram being configured with laser focusing device disclosed in the embodiment of the present invention；
Fig. 1 (b) is a kind of shooting object focusing schematic diagram disclosed in the embodiment of the present invention；
Fig. 2 is the structural representation of a kind of mobile terminal disclosed in the embodiment of the present invention；
Fig. 3 is the structural representation of another kind of mobile terminal disclosed in the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is a part of embodiment of the present invention rather than whole embodiments wholely.Based on this
Embodiment in bright, the every other enforcement that those of ordinary skill in the art are obtained under not making creative work premise
Example, broadly falls into the scope of protection of the invention.
It should be noted that the term used in embodiments of the present invention is only merely for the mesh describing specific embodiment
, and it is not intended to be limiting the present invention." one of singulative used in the embodiment of the present invention and appended claims
Kind ", " described " and " being somebody's turn to do " be also intended to include majority form, unless context clearly shows that other implications.It is also understood that this
Any or all possible group that the term "and/or" used in literary composition refers to and comprises one or more project of listing being associated
Close.
The embodiment of the invention discloses a kind of laser focusing sensor control method and mobile terminal, it is possible to reduce laser pair
The infrared ray that burnt sensor produces is entered into the intensity of this photographic head after reflecting, simultaneously, it is to avoid laser focusing sensor produces
Infrared ray reflected after captured so that the generation of speckle phenomenon occurs in the photo shot by this photographic head, improve bat
Take the photograph effect.It is described in detail individually below.
The embodiment of the present invention is applied to take pictures object by being configured with the smart mobile phone of laser focusing device.Opening
When object is taken pictures by the camera function of smart mobile phone, the laser focusing device of this smart mobile phone configuration can be to shooting object emission
Infrared ray, this infrared ray subject is received by this smart mobile phone after reflecting, and this smart mobile phone is received by calculating
This ultrared time difference realizes auto-focusing.But, when smart mobile phone judges that this ultrared intensity received is in advance
If time within the scope of light intensity, this smart mobile phone closes this laser focusing device.
Referring to Fig. 1, Fig. 1 is the flow process signal of a kind of laser focusing sensor control method disclosed in the embodiment of the present invention
Figure.As it is shown in figure 1, this laser focusing sensor control method may comprise steps of.
S101, acquisition for mobile terminal feed back to the incident infrared of this mobile terminal, and this incident infrared is to be moved by this
Terminal transmission.
This mobile terminal can be run Android operation system, iOS operating system, Windows operating system or other
The mobile device with camera function of operating system, such as smart mobile phone, removable computer or panel computer etc..
When using this mobile terminal to take pictures, this mobile terminal can be obtained by the sensor configured and be injected into this
The incident infrared of mobile terminal camera.The sensor of this mobile terminal configuration can be infrared ray sensor or colour temperature sensing
Device etc..
Wherein, this infrared ray sensor is usually by optical system, detector, signal conditioning circuit and display unit group
Becoming, Infrared Detectors is the core of infrared ray sensor, and Infrared Detectors utilizes the heat effect of infra-red radiation, detector sensitivity unit
Part absorb radiation can after cause temperature to raise, and then make some relevant physical parameter generation respective change, pass through physical parameter
Change determine the infra-red radiation that detector is absorbed.
This incident infrared can be the infrared ray being injected into this mobile terminal.Wherein, infrared ray is that wavelength is between microwave
And the electromagnetic wave between visible ray, wavelength is between 760 nanometers (nm) to 1 millimeter (mm).
The embodiment of the present invention can apply to take pictures object by being configured with the mobile terminal of laser focusing device.As
The smart mobile phone of laser focusing device it is configured with, at the back side of this smart mobile phone, the configuration of the side of post-positioned pick-up head 1 shown in Fig. 1 (a)
There are laser focusing device 2 and flash lamp 3.
The Main Function of laser focusing device is that smart mobile phone realizes focusing during taking pictures object, i.e. allows shooting object
The light reflected focus after the eyeglass of photographic head focuses on just falls on the sensitive chip of photographic head.Such as Fig. 1 (b) institute
Showing, A refers to shoot object, and B refers to the eyeglass of photographic head, and C refers to sensitive chip, and shown in Fig. 1 (b) is shooting object
The light that A is reflected focus after photographic head eyeglass B reflects falls on sensitive chip C.
The operation principle of laser focusing device is laser focusing device to shooting object emission infrared ray, and this infrared ray is through subject
Body is received by photographic head after firing back, photographic head by calculating receive this ultrared time difference calculate shooting object with
The distance of photographic head.Illustrate according to the focusing schematic diagram shown in Fig. 1 (b), if being configured with the smart mobile phone of laser focusing device
After calculating the distance of shooting object A and sensitive chip C, smart mobile phone suitably regulates the position of photographic head eyeglass B, Ji Keshi
The light that existing object A is reflected focus after photographic head eyeglass B reflects falls on sensitive chip C；Or, if being configured with sharp
After the smart mobile phone of light focusing device calculates the distance of shooting object A and photographic head eyeglass B, smart mobile phone suitably regulates photosensitive
Chip location of C, can realize light that object A the reflected focus after photographic head eyeglass B reflects and fall on sensitive chip C
Deng.
Therefore, in the embodiment of the present invention, when shooting object is taken pictures by smart mobile phone, this being injected into this smart mobile phone enters
Penetrating infrared ray can be: the infrared ray of shooting object its own transmission, or the infrared ray etc. of shooting object reflection.Wherein, according to swashing
Light focusing device focusing principle can draw, the infrared ray of shooting object reflection can also include: shooting object reflection laser focusing
Device is transmitted to shoot the infrared ray of object.
S102, this mobile terminal detect the light parameter of this incident infrared.
Optionally, this mobile terminal can configure color temperature sensor, and this mobile terminal can be examined by this color temperature sensor
Survey the light parameter of this incident infrared.This light parameter can be light intensity and light frequency.
This light intensity can be " light intensity " being commonly called as, and is called for short light intensity, and iu is candela (candela, cd).
1cd refers to light source luminous intensity in given directions, and 1cd is specifically interpreted as, this light source send frequency be 540 ×
1012The monochromatic radiation of Hz, and radiant intensity is 1/683 watt of every steradian in the direction.Such as, the light intensity of a certain light
For 10cd.
This light frequency can be " light frequency " being commonly called as, and is called for short optical frequency, and iu is hertz (Hz).Such as, at electricity
In electromagnetic spectrum, the frequency range of the appreciable visible ray of human eye is 3.9 × 1014～8.6 × 1014Between Hz.
S103, this mobile terminal judge whether the light parameter of this incident infrared meets the light parameter preset, if sentencing
Break and the light parameter of this incident infrared and meet this light parameter preset, then perform step S104, otherwise, then terminate this stream
Journey.
Optionally, the concrete step that performs of step S102 and step S103 may comprise steps of:
Step 11), this mobile terminal detect the light intensity of this incident infrared.
Step 12), this mobile terminal judge that the light intensity of this incident infrared is whether at the model of default light intensity
Within enclosing, if judging, the light intensity of this incident infrared within the scope of this light intensity preset, then performs step
13) and step 14).
Optionally, this mobile terminal can configure color temperature sensor, and this mobile terminal can be examined by this color temperature sensor
Survey the light intensity of this incident infrared.
This light intensity preset can be that user pre-sets, and is stored in this mobile terminal internal memory or server.
At this mobile terminal when judging, it is strong that this mobile terminal can recall this light preset from self EMS memory or server
Degree.
Main purpose based on the embodiment of the present invention is after the infrared ray avoiding laser focusing device to be launched is reflected back,
The reflection light that light intensity is stronger enters in mobile terminal, and therefore, this light intensity scope preset can be according to this laser
The ultrared light intensity that focusing device is launched is set.Such as, the maximum in the scope of this light intensity preset
The ultrared light intensity can launched less than or equal to laser focusing device.Such as, if what this laser focusing device was launched
Ultrared light intensity is 10cd, then this may range from (2cd, 8cd) of light intensity preset, or (3cd, 10cd]
Deng.
Step 13), this mobile terminal detect the light frequency of this incident infrared.
Optionally, this mobile terminal can configure color temperature sensor, and this mobile terminal can be examined by this color temperature sensor
Survey the light frequency of this incident infrared.
Step 14), this mobile terminal judge the light frequency of this incident infrared whether equal to the light frequency preset, if
Judge the light frequency that the light frequency of this incident infrared is preset equal to this, then judge the light parameter of this incident infrared
Meet this light parameter preset.
This light frequency preset can be that user pre-sets, and is stored in this mobile terminal internal memory or server.
At this mobile terminal when judging, this mobile terminal can from self EMS memory or server in recall this preset light
Frequency.
In like manner, main purpose based on the embodiment of the present invention is that the infrared ray avoiding laser focusing device to be launched is reflected back toward
After Laiing, the reflection light that light intensity is stronger enters in mobile terminal, and therefore, this light frequency preset can be laser focusing
The ultrared light frequency that device is launched.Such as, if the ultrared light frequency that laser focusing device is launched be 1.3 ×
1013Hz, then this light frequency preset can be 1.3 × 1013Hz。
Visible, by perform step 11), step 12), step 13) and step 14), first this mobile terminal detects this and enters
Penetrate ultrared light intensity, if this mobile terminal judges that the light intensity of this incident infrared is at this light intensity preset
Within the scope of, then this mobile terminal detects the light frequency of this incident infrared again.
Optionally, the concrete step that performs of step S102 and step S103 can also comprise the following steps:
Step 21), this mobile terminal detect the light intensity of this incident infrared and the light frequency of this incident infrared.
Optionally, this mobile terminal can configure color temperature sensor, and this mobile terminal can be examined by this color temperature sensor
Survey light intensity and the light frequency of this incident infrared.
Step 22), this mobile terminal judge that the light intensity of this incident infrared is whether at the model of default light intensity
Within enclosing, if the light intensity of this incident infrared is within the scope of this light intensity preset, then perform step 23).
In like manner, the ultrared light intensity that this light intensity scope preset can be launched according to this laser focusing device
It is set.Such as, the maximum in the scope of this light intensity preset can be launched less than or equal to laser focusing device
Ultrared light intensity.
Step 23), this mobile terminal judge the light frequency of this incident infrared whether equal to the light frequency preset, if
Judge the light frequency that the light frequency of this incident infrared is preset equal to this, then judge the light ginseng of this incident infrared
Number meets this light parameter preset.
The ultrared light frequency that this light frequency preset can be launched by laser focusing device.
S104, this mobile terminal close this laser focusing sensor.
Optionally, if judging in step s 103, the light parameter of this incident infrared meets this light preset ginseng
Number, it is also possible to perform step: step 31), this mobile terminal detect the pace of change of light parameter of this incident infrared, if should
The pace of change of the light parameter of incident infrared is less than this default pace of change threshold value, then perform step S104.
The pace of change of the light parameter of this incident infrared can refer to the light Parameter units time of this incident infrared
The changing value of the light parameter of this incident infrared interior.Such as, if the light parameter of this incident infrared light when time t1
Line parameter is 10cd, the light parameter of this incident infrared light parameter when time t2 is 8cd, then this incident infrared
The pace of change of light parameter can be (10cd-8cd)/(t1-t2).
In embodiments of the present invention, can reflect that user is wanted by the pace of change of the light parameter of this incident infrared
Whether the object of shooting is motion.If the pace of change of the light parameter of this incident infrared is relatively big, the most substantially can reflect
The object that user is to be shot is motion；Otherwise, if the pace of change of the light parameter of this incident infrared is less, the most substantially
Can reflect that the object that user is to be shot is static.
Such as, if user shoots a lion run with mobile phone, lion is during running, from the distance of user mobile phone
Can time remote time near, this just causes the pace of change feeding back to the light parameter of the incident infrared of mobile phone bigger；Otherwise, if user
Shooting a static tree with mobile phone, user mobile phone is held essentially constant with the distance of tree, and the incidence so feeding back to mobile phone is red
The pace of change of the light parameter of outside line is the least.
When the object of shooting motion, the light parameter of the incident infrared feeding back to mobile terminal is little time big when understanding, because of
This, it is impossible to decide whether that turning-off mobile terminal is configured according to the judgement of the light parameter of a certain moment incident infrared sharp
Light focusing sensor；But, when shooting static object, the light parameter of the incident infrared feeding back to mobile terminal can base
This holding is constant, and the judgement that therefore, it can the light parameter according to a certain moment incident infrared decides whether that closedown is mobile
The laser focusing sensor that terminal is configured.
In the method described by Fig. 1, judge that the infrared ray feeding back to this mobile terminal camera is this at mobile terminal
After the infrared ray that infrared ray produced by the laser focusing sensor of mobile terminal configuration is reflected back, then close this laser
Focusing sensor.Visible, implement the method that Fig. 1 describes, the infrared ray reducing laser focusing sensor generation is reflected laggard
Enter the intensity to this photographic head, simultaneously, it is to avoid the infrared ray that laser focusing sensor produces is caught by this photographic head after being reflected
Grasp so that the generation of speckle phenomenon occurs in the photo shot, improve shooting effect.
Referring to Fig. 2, Fig. 2 is the structural representation of a kind of mobile terminal disclosed in the embodiment of the present invention.Wherein, Fig. 2 institute
The mobile terminal shown may include that
Infrared ray acquiring unit 201, for obtaining the incident infrared feeding back to this mobile terminal, this incident infrared is
Launched by this mobile terminal.
This incident infrared can be the infrared ray injecting this mobile terminal.Wherein, infrared ray be wavelength between microwave with
Electromagnetic wave between visible ray, wavelength is between 760 nanometers (nm) to 1 millimeter (mm).
Parameter detecting unit 202, for detecting the light ginseng of this incident infrared that this infrared ray acquiring unit 201 obtains
Number.
Optionally, this mobile terminal can include color temperature sensor, and parameter detecting unit 202, specifically for by this color
Temperature sensor detects the light parameter of this incident infrared.This light parameter can be light intensity and light frequency.
This light intensity can be " light intensity " being commonly called as, and is called for short light intensity, and iu is candela (candela, cd).
This light frequency can be " light frequency " being commonly called as, and is called for short optical frequency, and iu is hertz (Hz).Such as, in electromagnetic spectrum
The frequency range of the appreciable visible ray of human eye is 3.9 × 1014～8.6 × 1014Between Hz.
Parameter judging unit 203, for judging the light parameter of this incident infrared that this parameter detecting unit 202 detects
Whether meet the light parameter preset.
Closing unit 204, for when the judged result of this parameter judging unit 203 is for being, closes the focusing of this laser and passes
Sensor.
Optionally, this mobile terminal can include color temperature sensor.This light parameter includes light intensity and light frequency,
This parameter detecting unit 202, specifically for detecting the light intensity of this incident infrared by this color temperature sensor.This parameter is sentenced
Disconnected unit 203, specifically for judging that the light intensity of this incident infrared is whether within the scope of default light intensity.
This light intensity preset can be that user pre-sets, and is stored in this mobile terminal internal memory or server.
At this mobile terminal when judging, it is strong that this mobile terminal can recall this light preset from self EMS memory or server
Degree.
Main purpose based on the embodiment of the present invention is after the infrared ray avoiding laser focusing device to be launched is reflected back,
The reflection light that light intensity is stronger enters in mobile terminal, and therefore, this light intensity scope preset can be according to this laser
The ultrared light intensity that focusing device is launched is set.Such as, the maximum in the scope of this light intensity preset
The ultrared light intensity can launched less than or equal to laser focusing device.Such as, if what this laser focusing device was launched
Ultrared light intensity is 10cd, then this may range from (2cd, 8cd) of light intensity preset, or (3cd, 10cd]
Deng.
This parameter detecting unit 202, also particularly useful for the light judging this incident infrared at this parameter judging unit 203
When line strength is within the scope of this light intensity preset, detect the light frequency of this incident infrared.
This parameter judging unit 203, also particularly useful for judging that the light frequency of this incident infrared is whether equal to presetting
Light frequency, if judging the light frequency that the light frequency of this incident infrared is preset equal to this, then judges this directs
The light parameter of line meets this light parameter preset.
This light frequency preset can be that user pre-sets, and is stored in this mobile terminal internal memory or server.
At this mobile terminal when judging, this mobile terminal can recall this light preset frequency from self EMS memory or server
Rate.
In like manner, main purpose based on the embodiment of the present invention is that the infrared ray avoiding laser focusing device to be launched is reflected back toward
After Laiing, the reflection light that light intensity is stronger enters in mobile terminal, and therefore, this light frequency preset can be laser focusing
The ultrared light frequency that device is launched.Such as, if the ultrared light frequency that laser focusing device is launched be 1.3 ×
1013Hz, then this light frequency preset can be 1.3 × 1013Hz。
Optionally, this parameter judging unit 203, specifically for judging the light of this incident infrared by this color temperature sensor
Whether line strength is within the scope of default light intensity.
Optionally, this mobile terminal can include color temperature sensor.This light parameter includes light intensity and light frequency,
This parameter detecting unit 202, specifically for detecting light intensity and this incidence of this incident infrared by this color temperature sensor
Ultrared light frequency.
This parameter judging unit 203, specifically for judging the light of this incident infrared that this parameter detecting unit 202 detects
Whether line strength is within the scope of default light intensity；And this incident infrared light intensity this preset light
When the scope of line strength, it is judged that whether the light frequency of this incident infrared of this parameter detecting unit 202 detection is equal to pre-
If light frequency；When the light frequency judging this incident infrared is equal to this light frequency preset, then judge that this enters
Penetrate ultrared light parameter and meet this light parameter preset.
In like manner, the ultrared light intensity that this light intensity scope preset can be launched according to this laser focusing device
It is set.Such as, the maximum in the scope of this light intensity preset can be launched less than or equal to laser focusing device
Ultrared light intensity.
The ultrared light frequency that this light frequency preset can be launched by laser focusing device.
Optionally, this parameter detecting unit 202, it is additionally operable to judge this incident infrared at this parameter judging unit 203
Light parameter meet this preset light parameter after, detect the pace of change of the light parameter of this incident infrared；
This parameter judging unit 203, is additionally operable to judge the light ginseng that this parameter detecting unit 202 detects this incident infrared
Whether the pace of change of number is less than presetting pace of change threshold value, if the pace of change of the light parameter of this incident infrared is less than being somebody's turn to do
Preset pace of change threshold value, then perform the step of this laser of this closedown focusing sensor.
The pace of change of the light parameter of this incident infrared can refer to the light Parameter units time of this incident infrared
The changing value of the light parameter of this incident infrared interior.Such as, if the light parameter of this incident infrared light when time t1
Line parameter is 10cd, the light parameter of this incident infrared light parameter when time t2 is 8cd, then this incident infrared
The pace of change of light parameter can be (10cd-8cd)/(t1-t2).
In embodiments of the present invention, can reflect that user is wanted by the pace of change of the light parameter of this incident infrared
Whether the object of shooting is motion.If the pace of change of the light parameter of this incident infrared is relatively big, the most substantially can reflect
The object that user is to be shot is motion；Otherwise, if the pace of change of the light parameter of this incident infrared is less, the most substantially
Can reflect that the object that user is to be shot is static.
Such as, if user shoots a lion run with mobile phone, lion is during running, from the distance of user mobile phone
Can time remote time near, this just causes the pace of change feeding back to the light parameter of the incident infrared of mobile phone bigger；Otherwise, if user
Shooting a static tree with mobile phone, user mobile phone is held essentially constant with the distance of tree, and the incidence so feeding back to mobile phone is red
The pace of change of the light parameter of outside line is the least.
When the object of shooting motion, the light parameter of the incident infrared feeding back to mobile terminal is little time big when understanding, because of
This, it is impossible to decide whether that turning-off mobile terminal is configured according to the judgement of the light parameter of a certain moment incident infrared sharp
Light focusing sensor；But, when shooting static object, the light parameter of the incident infrared feeding back to mobile terminal can base
This holding is constant, and the judgement that therefore, it can the light parameter according to a certain moment incident infrared decides whether that closedown is mobile
The laser focusing sensor that terminal is configured.
Visible, implement the mobile terminal that Fig. 2 describes, it is possible to after the infrared ray that reduction laser focusing sensor produces is reflected
Enter into the intensity of this photographic head.
Referring to Fig. 3, Fig. 3 is the structural representation of another kind of mobile terminal disclosed in the embodiment of the present invention.Wherein, this
The mobile terminal that bright embodiment provides may be used for implementing the method that the various embodiments of the present invention shown in above-mentioned Fig. 1 realize, in order to
Being easy to explanation, illustrate only the part relevant to various embodiments of the present invention, concrete ins and outs do not disclose, and refer to Fig. 1 institute
The various embodiments of the present invention shown.Wherein, the mobile terminal shown in Fig. 3 may include that
Processor 1 and the color temperature sensor 3 being connected with processor 1 by interface 2 and by bus 4 and process
The memorizer 5 that device 1 is connected.Wherein, memorizer 5 is used for storing batch processing code；Processor 1 is used for calling in memorizer 5
The program code of storage, is used for performing following operation:
Obtaining the incident infrared feeding back to mobile terminal, this incident infrared is launched by this mobile terminal；
Detect the light parameter of this incident infrared, and judge whether the light parameter of this incident infrared meets and preset
Light parameter；
If judging, the light parameter of this incident infrared meets this light parameter preset, then close the focusing of this laser and pass
Sensor.
Optionally, processor 1 is for calling the program code of storage in memorizer 5, and this light parameter includes light intensity
With light frequency, it is additionally operable to perform following operation:
Detect the light intensity of this incident infrared, and judge that whether the light intensity of this incident infrared is at default light
Within the scope of line strength；
If judging, the light intensity of this incident infrared within the scope of this light intensity preset, then detects this and enters
Penetrate ultrared light frequency, and judge that whether the light frequency of this incident infrared is equal to the light frequency preset；
If judging the light frequency that the light frequency of this incident infrared is preset equal to this, then judge this incident infrared
Light parameter meet this preset light parameter.
Optionally, processor 1 is for calling the program code of storage in memorizer 5, and this light parameter includes light intensity
With light frequency, it is additionally operable to perform following operation:
Detect the light intensity of this incident infrared and the light frequency of this incident infrared, and judge this incident infrared
Light intensity whether within the scope of default light intensity；
If the light intensity of this incident infrared is within the scope of this light intensity preset, then judge this directs
Whether the light frequency of line is equal to the light frequency preset；If judging what the light frequency of this incident infrared was preset equal to this
Light frequency, then judge that the light parameter of this incident infrared meets this light parameter preset.
Optionally, processor 1 is for calling the program code of storage in memorizer 5, if this incident infrared should be judged
Light parameter meet this light parameter preset after, be additionally operable to perform following operation:
Detect the pace of change of the light parameter of this incident infrared；
If the pace of change of the light parameter of this incident infrared is less than presetting pace of change threshold value, then performing this closedown should
The step of laser focusing sensor.
Visible, implement the mobile terminal that Fig. 3 describes, it is possible to after the infrared ray that reduction laser focusing sensor produces is reflected
Enter into the intensity of this photographic head.
Step in embodiment of the present invention method can carry out order according to actual needs and adjust, merges and delete.
Unit in embodiment of the present invention mobile terminal can merge according to actual needs, divides and delete.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is can
Completing instructing relevant hardware by program, this program can be stored in a computer-readable recording medium, storage
Medium include read only memory (Read-Only Memory, ROM), random access memory (Random Access Memory,
RAM), programmable read only memory (Programmable Read-only Memory, PROM), erasable programmable is read-only deposits
Reservoir (Erasable Programmable Read Only Memory, EPROM), disposable programmable read only memory (One-
Time Programmable Read-Only Memory, OTPROM), the electronics formula of erasing can make carbon copies read only memory
(Electrically-Erasable Programmable Read-Only Memory, EEPROM), read-only optical disc (Compact
Disc Read-Only Memory, CD-ROM) or other disk storages, disk memory, magnetic tape storage or can
For carrying or store any other medium computer-readable of data.
Above laser focusing sensor control method a kind of disclosed in the embodiment of the present invention and mobile terminal are carried out in detail
Thin introducing, principle and the embodiment of the present invention are set forth by specific case used herein, saying of above example
Bright method and the core concept thereof being only intended to help to understand the present invention；Simultaneously for one of ordinary skill in the art, foundation
The thought of the present invention, the most all will change, and in sum, this specification content is not
It is interpreted as limitation of the present invention.
Claims (10)
1. a laser focusing sensor control method, it is characterised in that described method includes:
Obtaining the incident infrared feeding back to mobile terminal, described incident infrared is launched by described mobile terminal；
Detect the light parameter of described incident infrared, and judge whether the light parameter of described incident infrared meets and preset
Light parameter；
If judging, the light parameter of described incident infrared meets described default light parameter, then close the focusing of described laser
Sensor.
Method the most according to claim 1, it is characterised in that described light parameter includes light intensity and light frequency,
The light parameter of the described incident infrared of described detection, and judge that whether the light parameter of described incident infrared meets and preset
Light parameter, including:
Detect the light intensity of described incident infrared, and judge that whether the light intensity of described incident infrared is at default light
Within the scope of line strength；
If judging, the light intensity of described incident infrared within the scope of described default light intensity, then detects described
The light frequency of incident infrared, and judge that whether the light frequency of described incident infrared is equal to the light frequency preset；
If judging, the light frequency of described incident infrared equal to described default light frequency, then judges described directs
The light parameter of line meets described default light parameter.
Method the most according to claim 1, it is characterised in that described light parameter includes light intensity and light frequency,
The light parameter of the described incident infrared of described detection, it is judged that whether the light parameter of described incident infrared meets the light preset
Line parameter, including:
Detect the light intensity of described incident infrared and the light frequency of described incident infrared, and judge described directs
Whether the light intensity of line is within the scope of default light intensity；
If the light intensity of described incident infrared is within the scope of described default light intensity, then judge that described incidence is red
Whether the light frequency of outside line is equal to the light frequency preset；If judging, the light frequency of described incident infrared is equal to described
The light frequency preset, then judge that the light parameter of described incident infrared meets described default light parameter.
Method the most according to claim 1, it is characterised in that described mobile terminal includes color temperature sensor, described detection
The light parameter of described incident infrared, including:
The light parameter of described incident infrared is detected by described color temperature sensor.
Method the most according to claim 1, it is characterised in that if the described light parameter judging described incident infrared
After meeting described default light parameter, described method also includes:
Detect the pace of change of the light parameter of described incident infrared；
If the pace of change of the light parameter of described incident infrared is less than presetting pace of change threshold value, then perform described closedown institute
State the step of laser focusing sensor.
6. a mobile terminal, it is characterised in that described mobile terminal includes:
Infrared ray acquiring unit, feeds back to the incident infrared of described mobile terminal for obtaining, described incident infrared be by
Described mobile terminal is launched；
Parameter detecting unit, for detecting the light parameter of the described incident infrared that described infrared ray acquiring unit obtains；
Parameter judging unit, for judging whether the light parameter of described incident infrared that described parameter detecting unit detect expires
The light parameter that foot is preset；
Closing unit, for when the judged result of described parameter judging unit is for being, closes described laser focusing sensor.
Mobile terminal the most according to claim 6, it is characterised in that described light parameter includes light intensity and light frequency
Rate,
Described parameter detecting unit, specifically for detecting the light intensity of described incident infrared；
Described parameter judging unit, specifically for judging that whether the light intensity of described incident infrared is at default light intensity
Within the scope of；
Also particularly useful at described parameter judging unit, described parameter detecting unit, judges that the light of described incident infrared is strong
When degree is within the scope of described default light intensity, then detect the light frequency of described incident infrared；
Described parameter judging unit, also particularly useful for judging that whether the light frequency of described incident infrared is equal to the light preset
Frequency, if judging, the light frequency of described incident infrared equal to described default light frequency, then judges that described incidence is red
The light parameter of outside line meets described default light parameter.
Mobile terminal the most according to claim 6, it is characterised in that described light parameter includes light intensity and light frequency
Rate,
Described parameter detecting unit, specifically for detecting light intensity and the light of described incident infrared of described incident infrared
Line frequency；
Described parameter judging unit is strong specifically for judging the light of described incident infrared that described parameter detecting unit detects
Whether degree is within the scope of default light intensity；And at the light intensity of described incident infrared at described default light
When the scope of line strength, it is judged that whether the light frequency of the described incident infrared of described parameter detecting unit detection is equal to pre-
If light frequency；When judging the light frequency of described incident infrared equal to described default light frequency, then judge
The light parameter of described incident infrared meets described default light parameter.
Mobile terminal the most according to claim 6, it is characterised in that described mobile terminal includes color temperature sensor, described
Parameter detecting unit, specifically for detecting the light parameter of described incident infrared by described color temperature sensor.
Mobile terminal the most according to claim 6, it is characterised in that described parameter detecting unit, is additionally operable in described ginseng
After number judging unit judges that the light parameter of described incident infrared meets described default light parameter, enter described in detection
Penetrate the pace of change of ultrared light parameter；
Described parameter judging unit, is additionally operable to judge that described parameter detecting unit detects the light parameter of described incident infrared
Whether pace of change is less than presetting pace of change threshold value, if the pace of change of the light parameter of described incident infrared is less than described
Preset pace of change threshold value, then perform the step of described closedown described laser focusing sensor.
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| CN106101546B (en) | 2019-04-05 |
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