CN106791739A - Projecting apparatus and its focusing method and device - Google Patents
Projecting apparatus and its focusing method and device Download PDFInfo
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- CN106791739A CN106791739A CN201611070789.3A CN201611070789A CN106791739A CN 106791739 A CN106791739 A CN 106791739A CN 201611070789 A CN201611070789 A CN 201611070789A CN 106791739 A CN106791739 A CN 106791739A
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- camera lens
- projecting apparatus
- projection distance
- elevation angle
- horizontal range
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
- H04N9/317—Convergence or focusing systems
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Abstract
The disclosure is related to appliance field on a kind of projecting apparatus and its focusing method and device, and the method includes obtaining the camera lens projection distance of the projecting apparatus；Focused according to the camera lens projection distance.By obtaining the camera lens projection distance of the projecting apparatus, to carry out focusing control to the projecting apparatus, focusing cost is reduced, reduce projection power consumption, the life-span of projecting apparatus is extended to a certain extent.
Description
Technical field
This disclosure relates to appliance field, more particularly to a kind of projecting apparatus and its focusing method and device.
Background technology
In correlation technique, the focusing system of projecting apparatus typically uses camera collection image, then according to the fuzzy of image
Degree utilizes focusing motor to be focused, and so projects image using camera continuous acquisition to reach the side of focusing purpose
Method, not only high cost, and also when the projector distance of projecting apparatus often changes, the power consumption of projected focus also can always maintain ratio
State higher, and the light source of projecting apparatus belongs to consumptive material, so also can to a certain extent reduce the life-span of projecting apparatus.
The content of the invention
To overcome problem present in correlation technique, the disclosure to provide a kind of projecting apparatus and its focusing method and device.
According to the first aspect of the embodiment of the present disclosure, there is provided a kind of projecting apparatus focusing method, methods described includes：
Obtain the camera lens projection distance of the projecting apparatus；
Focused according to the camera lens projection distance.
Optionally, the camera lens projection distance for obtaining the projecting apparatus includes：
Obtain the camera lens of the projecting apparatus and the horizontal range that is projected between face and the projector lens projecting direction
The camera lens elevation angle between horizontal plane；
The camera lens projection distance is calculated according to the horizontal range and the camera lens elevation angle.
Optionally, it is described that the camera lens projection distance is calculated according to the horizontal range and the camera lens elevation angle, including：
Variable quantity when the variable quantity of the horizontal range is more than the first predetermined threshold value or at the camera lens elevation angle is more than
During second predetermined threshold value, the camera lens projection distance is calculated according to the horizontal range and the camera lens elevation angle.
Optionally, the horizontal range is detected by range sensor.
Optionally, the camera lens elevation angle is by any in acceleration transducer, angular transducer and gyro sensor
Person detects.
Optionally, methods described also includes：
The projection brightness of the projecting apparatus is adjusted according to the camera lens projection distance.
According to the second aspect of the embodiment of the present disclosure, there is provided a kind of projecting apparatus focusing mechanism, described device includes：
Acquisition module, is configured as obtaining the camera lens projection distance of the projecting apparatus；
Performing module, is configured as being focused according to the camera lens projection distance.
Optionally, the acquisition module also includes：
Acquisition submodule, is configured as obtaining the camera lens of the projecting apparatus and the horizontal range that is projected between face and described
The camera lens elevation angle between projector lens projecting direction and horizontal plane；
Calculating sub module, be configured as according to the horizontal range and the camera lens elevation angle calculate the camera lens projection away from
From.
Optionally, the calculating sub module is additionally configured to：
Variable quantity when the variable quantity of the horizontal range is more than the first predetermined threshold value or at the camera lens elevation angle is more than
During second predetermined threshold value, the camera lens projection distance is calculated according to the horizontal range and the camera lens elevation angle.
Optionally, the acquisition submodule includes range sensor, for obtaining the horizontal range.
Optionally, the acquisition submodule includes appointing in acceleration transducer, angular transducer and gyro sensor
One, for obtaining the camera lens elevation angle.
Optionally, described device also includes：
Luminance adjustment module, is configured as being adjusted according to the camera lens projection distance projection brightness of the projecting apparatus.
According to the third aspect of the embodiment of the present disclosure, there is provided a kind of projecting apparatus focusing mechanism, described device includes：
Processor；
Memory for storing processor-executable instruction；
Wherein, the processor is configured as：
Obtain the camera lens projection distance of the projecting apparatus；
Focused according to the camera lens projection distance.
According to the fourth aspect of the embodiment of the present disclosure, there is provided a kind of non-transitorycomputer readable storage medium, when described
Instruction in storage medium by mobile terminal computing device when so that mobile terminal is able to carry out a kind of projecting apparatus focusing side
Method, methods described includes：
Obtain the camera lens projection distance of the projecting apparatus；
Focused according to the camera lens projection distance.
The 5th aspect according to the embodiment of the present disclosure, there is provided a kind of projecting apparatus, the projecting apparatus includes projection recited above
Instrument focusing mechanism.
The technical scheme provided by this disclosed embodiment can include the following benefits：By obtaining the projecting apparatus
Camera lens projection distance, to carry out focusing control to the projecting apparatus, reduces focusing cost, projection power consumption is reduced, certain
The life-span of projecting apparatus is extended in degree.
It should be appreciated that the general description of the above and detailed description hereinafter are only exemplary and explanatory, not
The disclosure can be limited.
Brief description of the drawings
Accompanying drawing herein is merged in specification and constitutes the part of this specification, shows the implementation for meeting the disclosure
Example, and it is used to explain the principle of the disclosure together with specification.
Fig. 1 is a kind of flow chart of the projecting apparatus focusing method according to an exemplary embodiment.
Fig. 2 is the flow chart of the another projecting apparatus focusing method according to an exemplary embodiment.
Fig. 3 is the flow chart of the another projecting apparatus focusing method according to an exemplary embodiment.
Fig. 4 is a kind of block diagram of the projecting apparatus focusing mechanism according to an exemplary embodiment.
Fig. 5 is a kind of schematic block diagram of the acquisition module of the projecting apparatus focusing mechanism according to an exemplary embodiment.
Fig. 6 is the block diagram of the another projecting apparatus focusing mechanism according to an exemplary embodiment.
Fig. 7 is a kind of block diagram of the projecting apparatus focusing mechanism according to an exemplary embodiment.
Fig. 8 is a kind of block diagram of the projecting apparatus focusing mechanism according to an exemplary embodiment.
Specific embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.Following exemplary embodiment
Described in implementation method do not represent all implementation methods consistent with the disclosure.Conversely, they be only with it is such as appended
The example of the consistent apparatus and method of some aspects described in detail in claims, the disclosure.
Fig. 1 is a kind of flow chart of the projecting apparatus focusing method according to an exemplary embodiment, projecting apparatus focusing side
Method is used in terminal.As shown in figure 1, the method may comprise steps of.
In step S101, the camera lens projection distance of the projecting apparatus is obtained.
Wherein, the camera lens projection distance in above-mentioned steps refers to straight line where the projecting direction of the camera lens and be projected
The intersection point in face is the distance between to the camera lens.
In step s 102, focused according to the camera lens projection distance.
After obtaining the camera lens projection distance of projecting apparatus, can be adjusted according to the camera lens projection distance focusing motor from
And control the focusing of projecting apparatus.
By above-mentioned technical scheme, after the camera lens projection distance for obtaining the projecting apparatus, thrown by the camera lens
Penetrate distance to carry out focusing control to the projecting apparatus, reduce focusing cost, reduce projection power consumption, prolong to a certain extent
The life-span of projecting apparatus is grown.
Fig. 2 is the flow chart of the another projecting apparatus focusing method according to an exemplary embodiment, as shown in Fig. 2 should
In addition to step S102 of the method in including Fig. 1, the step S101 in Fig. 1, namely obtain the camera lens projection of the projecting apparatus
Apart from the step of can also include step S201 and step S202.
In step s 201, the camera lens of the projecting apparatus is obtained and the horizontal range that is projected between face and the projecting apparatus
The camera lens elevation angle between camera lens projecting direction and horizontal plane；
Wherein, the horizontal range refers to the camera lens most short distance in the horizontal plane between the face that is projected of the projecting apparatus
From equivalent to the distance of camera lens projection distance mapping in the horizontal plane.The detection method of this distance can be utilized
Range sensor is detected.Wherein described range sensor can be ultrasonic distance-measuring sensor, laser range sensor, infrared
Line distance measuring sensor and radar range finding sensor etc..As long as being that by detecting the camera lens of the projecting apparatus and being projected face
Between the sensor type of purpose of horizontal range can use in the disclosure.Herein to measuring the horizontal range
The illustration of sensor is not used to limit the disclosure.
The camera lens elevation angle refers to the camera lens projecting direction angle with respect to the horizontal plane of the projecting apparatus, equivalent to described
Straight line and horizontal plane angulation where camera lens projection distance.The detection method of this angle can be by acceleration sensing
The detection of any one of device, angular transducer and gyro sensor, certain other any sensor classes that can measure angle
Type can also be used in the disclosure.The illustration for measuring the sensor at the camera lens elevation angle is not used to herein limit
The disclosure.
In step S202, the camera lens projection distance is calculated according to the horizontal range and the camera lens elevation angle.
The method for calculating the camera lens projection distance can be calculated using cosine function.For example, it is assumed that there is a right angle
Triangle, the camera lens elevation angle is an acute angle in the right angled triangle, and the horizontal range is adjacent with the acute angle
Right-angle side, then long by hypotenuse that the cosine law can obtain the right angled triangle, i.e., described camera lens projection distance.
By above-mentioned technical scheme, the camera lens of the projecting apparatus is first obtained and the horizontal range that is projected between face and institute
The camera lens elevation angle between projector lens projecting direction and horizontal plane is stated, then according to the horizontal range and the camera lens elevation angle
Calculate the camera lens projection distance, there is provided a kind of method for obtaining the camera lens projection distance, be the projecting apparatus focusing side
Method increased certain accuracy.
In addition, the acquisition methods of the camera lens projection distance can also be other any feasible methods.For example, can be
Radar range finding sensor is installed at the camera lens of the projecting apparatus, its emitting radar waves direction is protected with the projecting direction of the camera lens
Maintain an equal level row, thus can also obtain accurate camera lens projection distance by radar range finding sensor.
In a kind of possible embodiment, the step S202 in Fig. 2 can also be replaced by following steps：
Variable quantity when the variable quantity of the horizontal range is more than the first predetermined threshold value or at the camera lens elevation angle is more than
During second predetermined threshold value, the camera lens projection distance is calculated according to the horizontal range and the camera lens elevation angle.
Wherein, the variable quantity of the horizontal range refers to that the presently described horizontal range being most recently detected is examined recently with history
Variable quantity between the horizontal range for measuring, can be the amount of positive change, or the amount of negative change, but with described first
When predetermined threshold value is made comparisons, whether what is compared is the size of its absolute value more than first predetermined threshold value.That is, described level away from
All meet the water more than the first predetermined threshold value more than the absolute value of the first predetermined threshold value or negative variable quantity from positive variable quantity
Condition of the variable quantity of flat distance more than the first predetermined threshold value.For example, the horizontal range that history has recently detected is 3m, newest inspection
The present level distance for measuring is 3.1m, and first predetermined threshold value is set as 0.05m, then variable quantity 0.1m is more than described first
Predetermined threshold value, meets the condition for calculating the camera lens projection distance；The horizontal range that such as history has recently detected again is 3m, most
The new present level distance for detecting is 2.9m, and first predetermined threshold value is also set to 0.05m, then variable quantity is also 0.1m,
More than first predetermined threshold value, the condition for calculating the camera lens projection distance is also met.
Situation and recited above horizontal range of the variable quantity at the camera lens elevation angle more than second predetermined threshold value
Variable quantity is similar more than the situation of the first predetermined threshold value, no longer describes in detail herein.
By above-mentioned technical scheme, in fig. 2 during the described acquisition camera lens projector distance, institute is being obtained
State after horizontal range and the camera lens elevation angle, the variable quantity of variable quantity and the camera lens elevation angle to the horizontal range is carried out
One size judges, when any one variable quantity is more than respective predetermined threshold value, then the camera lens projection distance is counted
Calculate, and then control the projection to be focused, so that the focusing of projecting apparatus is more intelligent, and whether current state can be needed
Again being focused carries out intelligent decision, it is also possible to avoids projecting apparatus from continuously focusing always, and then can reduce throwing
The power consumption of shadow instrument.
Fig. 3 is the flow chart of the another projecting apparatus focusing method according to an exemplary embodiment, as shown in figure 3,
Step S301 is increased on the basis of projecting apparatus focusing method shown in Fig. 1.
In step S301, the projection brightness of the projecting apparatus is adjusted according to the camera lens projection distance.
The step S301 after step S101 obtains the camera lens projection distance, with step S102 according to the camera lens
Projection distance carries out no sequencing of focusing, i.e. first can both be focused according to the camera lens projection distance, it is also possible to first
The projection brightness of the projecting apparatus is adjusted according to the camera lens projection distance, can also be carried out simultaneously.
Because the current most brightness of projecting apparatus is all higher, generally more than 600 lumens, when camera lens projection
Apart from relatively short, projected area it is smaller when, the brightness of the projecting apparatus is it is possible that excessively dazzling situation, causes human eye
Discomfort, while the brightness of high intensity can also cause that the energy consumption of the projecting apparatus is too high.Projected according to the camera lens in step S301
The projection brightness of the distance regulation projecting apparatus can be adjusted in the following manner：Camera lens projection distance is shorter, then reduce and throw
Penetrate brightness；Camera lens projection distance is more long, then increase projection brightness.
By above-mentioned technical proposal, the projecting apparatus can be while focusing be realized, according to the camera lens projection distance
To adjust the projection brightness of the projecting apparatus, the energy consumption of the projecting apparatus can be reduced to a certain extent, reach certain section
Energy effect, moreover it is possible to extend the service life of projecting apparatus to a certain extent.
According to the second aspect of the embodiment of the present disclosure, there is provided a kind of projecting apparatus focusing mechanism 100, described device 100 such as Fig. 4
It is shown, including following two modules.
Acquisition module 110, is configured as obtaining the camera lens projection distance of the projecting apparatus；
Performing module 120, is configured as being focused according to the camera lens projection distance.
By above-mentioned technical proposal, acquisition module 110 is obtained after the camera lens projection distance of the projecting apparatus, performing module
120 carry out focusing control by the camera lens projection distance to the projecting apparatus, reduce focusing cost, reduce projection work(
Consumption, extends the life-span of projecting apparatus to a certain extent
In a kind of possible implementation method, the acquisition module 110 also includes two submodules as shown in Figure 5.
Acquisition submodule 111, be configured as obtaining the camera lens of the projecting apparatus and the horizontal range that is projected between face and
The camera lens elevation angle between the projector lens projecting direction and horizontal plane；
Calculating sub module 112, is configured as calculating the camera lens projection according to the horizontal range and the camera lens elevation angle
Distance.
By above-mentioned technical proposal, first pass through acquisition submodule 111 obtain the projecting apparatus camera lens and the face that is projected it
Between horizontal range and the camera lens elevation angle between the projector lens projecting direction and horizontal plane, then by performing module 112
The camera lens projection distance is calculated according to the horizontal range and the camera lens elevation angle, there is provided one kind obtains the camera lens projection
The method of distance, is that the projecting apparatus focusing method increased certain accuracy.
In a kind of possible implementation method, the calculating sub module 112 is additionally configured to：
Variable quantity when the variable quantity of the horizontal range is more than the first predetermined threshold value or at the camera lens elevation angle is more than
During second predetermined threshold value, the camera lens projection distance is calculated according to the horizontal range and the camera lens elevation angle.
By above-mentioned technical proposal, acquisition submodule 111 in Figure 5 obtains the camera lens of the projecting apparatus and is projected face
Between horizontal range and the camera lens elevation angle between the projector lens projecting direction and horizontal plane after, calculating sub module
The variable quantity at 112 variable quantities first to the horizontal range and the camera lens elevation angle carries out a size and judges, when any one
When variable quantity is more than respective predetermined threshold value, calculated to the camera lens projection distance, and then the control projection is carried out
Focusing, so that the focusing of shown projecting apparatus is more intelligent, can be carried out to whether current state needs to be focused again
Intelligent decision.
In a kind of possible embodiment, the acquisition submodule include range sensor, for obtain the level away from
From.
In a kind of possible embodiment, the acquisition submodule includes acceleration transducer, angular transducer and gyro
Any one of instrument sensor, for obtaining the camera lens elevation angle.
In a kind of possible implementation method, as shown in fig. 6, described device 100 can also include with lower module：
Luminance adjustment module 130, the projection being configured as according to the camera lens projection distance to adjust the projecting apparatus is bright
Degree.
By above-mentioned technical scheme, the projecting apparatus can while focusing is realized, according to camera lens projection away from
From the projection brightness of the projecting apparatus is adjusted, the energy consumption of the projecting apparatus can be reduced to a certain extent, reach certain
Energy-saving effect, moreover it is possible to extend the service life of projecting apparatus to a certain extent.
On the device 100 in above-described embodiment, wherein modules perform the concrete mode for operating and are somebody's turn to do relevant
It has been described in detail in the embodiment of method, explanation will be not set forth in detail herein.
A kind of block diagram of projecting apparatus focusing mechanisms 800 of the Fig. 7 according to an exemplary embodiment.For example, device 800 can
To be mobile phone, computer, digital broadcast terminal, messaging devices, game console, tablet device, Medical Devices are good for
Body equipment, personal digital assistant etc..
Reference picture 7, device 800 can include following one or more assemblies：Processing assembly 802, memory 804, electric power
Component 806, multimedia groupware 808, audio-frequency assembly 810, the interface 812 of input/output (I/O), sensor cluster 814, and
Communication component 816.
The integrated operation of the usual control device 800 of processing assembly 802, such as with display, call, data communication, phase
Machine is operated and the associated operation of record operation.Processing assembly 802 can refer to including one or more processors 820 to perform
Order, to complete all or part of step of projecting apparatus focusing method.Additionally, processing assembly 802 can include one or more moulds
Block, is easy to the interaction between processing assembly 802 and other assemblies.For example, processing assembly 802 can include multi-media module, with
Facilitate the interaction between multimedia groupware 808 and processing assembly 802.
Memory 804 is configured as storing various types of data supporting the operation in device 800.These data are shown
Example includes the instruction for any application program or method operated on device 800, and contact data, telephone book data disappears
Breath, picture, video etc..Memory 804 can be by any kind of volatibility or non-volatile memory device or their group
Close and realize, such as static RAM (SRAM), Electrically Erasable Read Only Memory (EEPROM) is erasable to compile
Journey read-only storage (EPROM), programmable read only memory (PROM), read-only storage (ROM), magnetic memory, flash
Device, disk or CD.
Electric power assembly 806 provides electric power for the various assemblies of device 800.Electric power assembly 806 can include power management system
System, one or more power supplys, and other generate, manage and distribute the component that electric power is associated with for device 800.
Multimedia groupware 808 is included in one screen of output interface of offer between described device 800 and user.One
In a little embodiments, screen can include liquid crystal display (LCD) and touch panel (TP).If screen includes touch panel, screen
Curtain may be implemented as touch-screen, to receive the input signal from user.Touch panel includes one or more touch sensings
Device is with the gesture on sensing touch, slip and touch panel.The touch sensor can not only sensing touch or sliding action
Border, but also detection and the touch or slide related duration and pressure.In certain embodiments, many matchmakers
Body component 808 includes a front camera and/or rear camera.When device 800 be in operator scheme, such as screening-mode or
During video mode, front camera and/or rear camera can receive outside multi-medium data.Each front camera and
Rear camera can be a fixed optical lens system or with focusing and optical zoom capabilities.
Audio-frequency assembly 810 is configured as output and/or input audio signal.For example, audio-frequency assembly 810 includes a Mike
Wind (MIC), when device 800 is in operator scheme, such as call model, logging mode and speech recognition mode, microphone is matched somebody with somebody
It is set to reception external audio signal.The audio signal for being received can be further stored in memory 804 or via communication set
Part 816 sends.In certain embodiments, audio-frequency assembly 810 also includes a loudspeaker, for exports audio signal.
, to provide interface between processing assembly 802 and peripheral interface module, above-mentioned peripheral interface module can for I/O interfaces 812
To be keyboard, click wheel, button etc..These buttons may include but be not limited to：Home button, volume button, start button and lock
Determine button.
Sensor cluster 814 includes one or more sensors, and the state for providing various aspects for device 800 is commented
Estimate.For example, sensor cluster 814 can detect the opening/closed mode of device 800, the relative positioning of component is for example described
Component is the display and keypad of device 800, and sensor cluster 814 can be with 800 1 components of detection means 800 or device
Position change, user is presence or absence of with what device 800 was contacted, the orientation of device 800 or acceleration/deceleration and device 800
Temperature change.Sensor cluster 814 can include proximity transducer, be configured to be detected when without any physical contact
The presence of neighbouring object.Sensor cluster 814 can also include optical sensor, such as CMOS or ccd image sensor, for into
As being used in application.In certain embodiments, the sensor cluster 814 can also include acceleration transducer, gyro sensors
Device, Magnetic Sensor, pressure sensor or temperature sensor.
Communication component 816 is configured to facilitate the communication of wired or wireless way between device 800 and other equipment.Device
800 can access the wireless network based on communication standard, such as WiFi, 2G or 3G, or combinations thereof.In an exemplary implementation
In example, communication component 816 receives broadcast singal or broadcast related information from external broadcasting management system via broadcast channel.
In one exemplary embodiment, the communication component 816 also includes near-field communication (NFC) module, to promote junction service.Example
Such as, NFC module can be based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra wide band (UWB) technology,
Bluetooth (BT) technology and other technologies are realized.
In the exemplary embodiment, device 800 can be by one or more application specific integrated circuits (ASIC), numeral letter
Number processor (DSP), digital signal processing appts (DSPD), PLD (PLD), field programmable gate array
(FPGA), controller, microcontroller, microprocessor or other electronic components realization, for performing projecting apparatus focusing method.
In the exemplary embodiment, a kind of non-transitorycomputer readable storage medium including instructing, example are additionally provided
Such as include the memory 804 of instruction, above-mentioned instruction can be performed to complete projecting apparatus focusing method by the processor 820 of device 800.
For example, the non-transitorycomputer readable storage medium can be ROM, random access memory (RAM), CD-ROM, tape,
Floppy disk and optical data storage devices etc..
A kind of block diagram of projecting apparatus focusing mechanisms 1900 of the Fig. 8 according to an exemplary embodiment.Reference picture 8, device
1900 include processing assembly 1922, and it further includes one or more processors, and depositing as representated by memory 1932
Memory resource, can be by the instruction of the execution of processing assembly 1922, such as application program for storing.Stored in memory 1932
Application program can include it is one or more each correspond to the module of one group of instruction.Additionally, processing assembly 1922
Execute instruction is configured as, to perform above-mentioned projecting apparatus focusing method.
Device 1900 can also include that a power supply module 1926 is configured as the power management of performs device 1900, one
Wired or wireless network interface 1950 is configured as device 1900 being connected to network, and input and output (I/O) interface
1958.Device 1900 can operate the operating system in memory 1932, such as Windows ServerTM, Mac based on storage
OS XTM, UnixTM, LinuxTM, FreeBSDTM or similar.
According to another aspect of the present disclosure, a kind of projecting apparatus is also provided, the projecting apparatus can include projection recited above
Any one in instrument focusing mechanism 100, projecting apparatus focusing mechanism 800 and projecting apparatus focusing mechanism 1900.
Those skilled in the art will readily occur to other embodiment party of the disclosure after considering specification and putting into practice the disclosure
Case.The application is intended to any modification, purposes or the adaptations of the disclosure, these modifications, purposes or adaptability
Change follows the general principle of the disclosure and including the undocumented common knowledge or usual skill in the art of the disclosure
Art means.Description and embodiments are considered only as exemplary, and the true scope of the disclosure and spirit are by following claim
Point out.
It should be appreciated that the disclosure is not limited to the precision architecture for being described above and being shown in the drawings, and
And can without departing from the scope carry out various modifications and changes.The scope of the present disclosure is only limited by appended claim.
Claims (14)
1. a kind of projecting apparatus focusing method, it is characterised in that methods described includes：
Obtain the camera lens projection distance of the projecting apparatus；
Focused according to the camera lens projection distance.
2. method according to claim 1, it is characterised in that the camera lens projection distance bag of the acquisition projecting apparatus
Include：
Obtain the camera lens of the projecting apparatus and the horizontal range that is projected between face and the projector lens projecting direction and water
The camera lens elevation angle between plane；
The camera lens projection distance is calculated according to the horizontal range and the camera lens elevation angle.
3. method according to claim 2, it is characterised in that described according to the horizontal range and the camera lens elevation meter
The camera lens projection distance is calculated, including：
Variable quantity when the variable quantity of the horizontal range is more than the first predetermined threshold value or at the camera lens elevation angle is more than described
During the second predetermined threshold value, the camera lens projection distance is calculated according to the horizontal range and the camera lens elevation angle.
4. according to the method in claim 2 or 3, it is characterised in that the horizontal range is detected by range sensor.
5. according to the method in claim 2 or 3, it is characterised in that the camera lens elevation angle passes through acceleration transducer, angle
Any one of sensor and gyro sensor are detected.
6. the method according to any claim in claims 1 to 3, it is characterised in that methods described also includes：
The projection brightness of the projecting apparatus is adjusted according to the camera lens projection distance.
7. a kind of projecting apparatus focusing mechanism, it is characterised in that described device includes：
Acquisition module, is configured as obtaining the camera lens projection distance of the projecting apparatus；
Performing module, is configured as being focused according to the camera lens projection distance.
8. device according to claim 7, it is characterised in that the acquisition module also includes：
Acquisition submodule, is configured as obtaining the camera lens of the projecting apparatus and the horizontal range that is projected between face and the projection
The camera lens elevation angle between instrument camera lens projecting direction and horizontal plane；
Calculating sub module, is configured as calculating the camera lens projection distance according to the horizontal range and the camera lens elevation angle.
9. device according to claim 8, it is characterised in that the calculating sub module is additionally configured to：
Variable quantity when the variable quantity of the horizontal range is more than the first predetermined threshold value or at the camera lens elevation angle is more than described
During the second predetermined threshold value, the camera lens projection distance is calculated according to the horizontal range and the camera lens elevation angle.
10. device according to claim 8 or claim 9, it is characterised in that the acquisition submodule includes range sensor, uses
In the acquisition horizontal range.
11. device according to claim 8 or claim 9, it is characterised in that the acquisition submodule include acceleration transducer,
Any one of angular transducer and gyro sensor, for obtaining the camera lens elevation angle.
12. device according to any claim in claim 7 to 9, it is characterised in that described device also includes：
Luminance adjustment module, is configured as being adjusted according to the camera lens projection distance projection brightness of the projecting apparatus.
A kind of 13. projecting apparatus focusing mechanisms, it is characterised in that including：
Processor；
Memory for storing processor-executable instruction；
Wherein, the processor is configured as：
Obtain the camera lens projection distance of the projecting apparatus；
Focused according to the camera lens projection distance.
14. a kind of projecting apparatus, it is characterised in that the projecting apparatus is included according to any claim in claim 7 to 13
Projecting apparatus focusing mechanism.
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| CN201611070789.3A CN106791739A (en) | 2016-11-28 | 2016-11-28 | Projecting apparatus and its focusing method and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611070789.3A CN106791739A (en) | 2016-11-28 | 2016-11-28 | Projecting apparatus and its focusing method and device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108471524A (en) * | 2018-02-28 | 2018-08-31 | 北京小米移动软件有限公司 | Focusing method and device and storage medium |
| CN112822469A (en) * | 2020-12-31 | 2021-05-18 | 广景视睿科技（深圳）有限公司 | Automatic focusing projection method and system |
| CN114885142A (en) * | 2022-05-27 | 2022-08-09 | 海信视像科技股份有限公司 | Projection equipment and method for adjusting projection brightness |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003161869A (en) * | 2001-11-26 | 2003-06-06 | Kyocera Corp | Focal point/field angle adjusting apparatus for lens exchangeable projector |
| US20050099609A1 (en) * | 2003-11-06 | 2005-05-12 | Tomonari Masuzawa | Projector with auto focus device |
| CN101025551A (en) * | 2006-01-20 | 2007-08-29 | 卡西欧计算机株式会社 | Projection apparatus, elevation angle control method therefor and recording medium |
| CN104460197A (en) * | 2014-11-25 | 2015-03-25 | 深圳先进技术研究院 | Projector capable of automatically correcting geometric distortion and correcting method thereof |
| CN105824180A (en) * | 2016-03-29 | 2016-08-03 | 乐视控股（北京）有限公司 | Method and device for regulating focal length of projector |
-
2016
- 2016-11-28 CN CN201611070789.3A patent/CN106791739A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003161869A (en) * | 2001-11-26 | 2003-06-06 | Kyocera Corp | Focal point/field angle adjusting apparatus for lens exchangeable projector |
| US20050099609A1 (en) * | 2003-11-06 | 2005-05-12 | Tomonari Masuzawa | Projector with auto focus device |
| CN101025551A (en) * | 2006-01-20 | 2007-08-29 | 卡西欧计算机株式会社 | Projection apparatus, elevation angle control method therefor and recording medium |
| CN104460197A (en) * | 2014-11-25 | 2015-03-25 | 深圳先进技术研究院 | Projector capable of automatically correcting geometric distortion and correcting method thereof |
| CN105824180A (en) * | 2016-03-29 | 2016-08-03 | 乐视控股（北京）有限公司 | Method and device for regulating focal length of projector |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108471524A (en) * | 2018-02-28 | 2018-08-31 | 北京小米移动软件有限公司 | Focusing method and device and storage medium |
| CN112822469A (en) * | 2020-12-31 | 2021-05-18 | 广景视睿科技（深圳）有限公司 | Automatic focusing projection method and system |
| CN114885142A (en) * | 2022-05-27 | 2022-08-09 | 海信视像科技股份有限公司 | Projection equipment and method for adjusting projection brightness |
| CN114885142B (en) * | 2022-05-27 | 2024-05-17 | 海信视像科技股份有限公司 | Projection equipment and method for adjusting projection brightness |
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