CN105824344B - The adjusting method and terminal of a kind of electric current - Google Patents
The adjusting method and terminal of a kind of electric current Download PDFInfo
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- CN105824344B CN105824344B CN201510553056.4A CN201510553056A CN105824344B CN 105824344 B CN105824344 B CN 105824344B CN 201510553056 A CN201510553056 A CN 201510553056A CN 105824344 B CN105824344 B CN 105824344B
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- flow valuve
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Abstract
The present invention provides the adjusting method and terminal of a kind of electric current, and the main lightning flow valuve to solve the flash lamp present in prior art in terminal is fixed, and does not have the technical problem that there is room for improvement.The adjusting method of the electric current includes：The environment temperature currency residing for the flash lamp is obtained by temperature detecting unit；According to the corresponding relation of default ambient temperature value and main lightning flow valuve, it is determined that the main lightning flow valuve of target corresponding with the environment temperature currency；The main lightning flow valuve of the flash lamp is set as the main lightning flow valuve of the target.The solution of the present invention, the ambient temperature value residing for flash lamp that can be in terminal, the main lightning flow valuve to the flash lamp is adjusted, on the premise of flash lamp reliability is ensured, obtains preferable flash lamp effect.
Description
Technical field
The present invention relates to flash light techniques field, the adjusting method and terminal of more particularly to a kind of electric current.
Background technology
With the fast development of mobile communication technology, terminal hardware is constantly being upgraded always, and New function is also increasing.
And the limited arrangement space of terminal is limited to, need to place various integrated IC, discrete device, flash lamp, loudspeaker on terminal mainboard
Deng function element.The high density of these devices, which is placed, causes thermal source Relatively centralized so that the heat dissipation environment of terminal is poor, user's body
Testing can also have a greatly reduced quality.
For example, when user take pictures need to use flash lamp when, to obtain preferable imaging effect, it usually needs larger
Main lightning flow valuve.But because the heat dissipation environment of terminal is poor, flash lamp is likely to occur heat waste when with larger main lightning flow valuve
It is bad, or flash lamp due to heated up in the short time it is too high and enter Thermal protection state, cause user take pictures experience it is poor.
Currently, in order to ensure flash lamp reliability on the premise of obtain preferable flash lamp effect, it is common practice to
In Terminal Design, go to select the flash lamp for meeting specification according to required maximum main lightning flow valuve, while according to excessively stream and dissipating
Heat request carries out PCB design and layout is stacked, to meet requirement.
But, such design causes when being taken pictures, and flash lamp can use the main lightning flow valuve set, and
When user wishes to obtain more preferable imaging effect, have no idea to improve the main lightning flow valuve of flash lamp.
The content of the invention
It is an object of the invention to provide a kind of adjusting method of electric current and terminal, terminal present in prior art is solved
In the main lightning flow valuve of flash lamp fix, do not have the technical problem that there is room for improvement.
In order to realize above-mentioned purpose, the present invention provides a kind of adjusting method of electric current, for an end with flash lamp
End, including：
The environment temperature currency residing for the flash lamp is obtained by temperature detecting unit；
According to the corresponding relation of default ambient temperature value and main lightning flow valuve, it is determined that with the environment temperature currency pair
The main lightning flow valuve of target answered；
The main lightning flow valuve of the flash lamp is set as the main lightning flow valuve of the target；
Wherein, the default ambient temperature value is with the corresponding relation of main lightning flow valuve, at least existing and first environment
Temperature value is corresponding and will not damage the first of the flash lamp the main lightning flow valuve and corresponding with second environment temperature value and not
The second main lightning flow valuve of the flash lamp can be damaged, the first environment temperature value is less than second environment temperature value, described the
One main lightning flow valuve is more than the second main lightning flow valuve, and with the rise of the ambient temperature value, the change of the main lightning flow valuve
Change trend is constant or reduction.
The present invention also provides a kind of terminal, with a flash lamp, including：
Temperature detecting unit, is disposed in proximity to the position of the flash lamp, for obtaining the environment residing for the flash lamp
Temperature currency；
Determining unit, is connected with the temperature detecting unit, for according to default ambient temperature value and main lightning flow valuve
Corresponding relation, it is determined that the main lightning flow valuve of target corresponding with the environment temperature currency；
Setup unit, is connected with the determining unit and the flash lamp, for by the main lightning flow valuve of the flash lamp
It is set as the main lightning flow valuve of the target；
Wherein, the default ambient temperature value is with the corresponding relation of main lightning flow valuve, at least existing and first environment
Temperature value is corresponding and will not damage the first of the flash lamp the main lightning flow valuve and corresponding with second environment temperature value and not
The second main lightning flow valuve of the flash lamp can be damaged, the first environment temperature value is less than second environment temperature value, described the
One main lightning flow valuve is more than the second main lightning flow valuve, and with the rise of the ambient temperature value, the change of the main lightning flow valuve
Change trend is constant or reduction.
By the present invention above-mentioned technical proposal, the beneficial effects of the present invention are：
The solution of the present invention, the environment temperature currency residing for flash lamp is obtained by temperature detecting unit, and according to pre-
If ambient temperature value and main lightning flow valuve corresponding relation, it is determined that the main lightning of target corresponding with the environment temperature currency
Flow valuve, the main lightning flow valuve of the target is set as by the main lightning flow valuve of the flash lamp so that the main sudden strain of a muscle of the flash lamp
Current value can be according to residing for it ambient temperature value be adjusted, on the premise of flash lamp reliability is ensured, obtain preferable
Flash lamp effect.
Brief description of the drawings
Fig. 1 represents the flow chart of the adjusting method of the electric current of the embodiment of the present invention.
Fig. 2 represents the structural representation of the terminal of the embodiment of the present invention.
Fig. 3 represents to emulate the approximate function figure of the ambient temperature value of an obtained flash lamp and main lightning flow valuve.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with accompanying drawing to specific real
Example is applied to be described in detail.
First embodiment
As shown in fig.1, the embodiment of the present invention provides a kind of adjusting method of electric current, for an end with flash lamp
End, including：
S101：The environment temperature currency residing for the flash lamp is obtained by temperature detecting unit；
In practical application, flash lamp is often poor due to the heat dissipation environment of terminal, occurs when with larger main lightning flow valuve
Cause thermal damage, or heat up in a short time too high and enter Thermal protection state, so as to influence the experience of taking pictures of terminal user.So,
In embodiments of the present invention, can be based on the environment temperature currency residing for flash lamp, the main lightning flow valuve to the flash lamp is entered
Row regulation.
Wherein, it is, for example, to use to the temperature detecting unit that the environment temperature currency residing for the flash lamp is detected
Thermistor, temperature sensing circuit etc., to detect the ambient temperature value residing for the flash lamp, but the present invention is not limited,
Appropriate selection can be carried out according to actual conditions.
S102：According to the corresponding relation of default ambient temperature value and main lightning flow valuve, it is determined that working as with the environment temperature
It is preceding to be worth the corresponding main lightning flow valuve of target；
Specifically, in the corresponding relation of the default ambient temperature value and main lightning flow valuve, at least in the presence of with the first ring
Border temperature value it is corresponding and the first of the flash lamp the main lightning flow valuve will not be damaged and it is corresponding with second environment temperature value and
The second main lightning flow valuve of the flash lamp will not be damaged, the first environment temperature value is less than second environment temperature value, described
First main lightning flow valuve is more than the second main lightning flow valuve, and with the rise of the ambient temperature value, the main lightning flow valuve
Variation tendency is constant or reduction.
So, can be by setting higher main sudden strain of a muscle when the ambient temperature value residing for the flash lamp in terminal is relatively low
Current value, to obtain preferable flash lamp effect；And when the ambient temperature value residing for the flash lamp in terminal is of a relatively high,
The relatively low main lightning flow valuve of setting, it is ensured that the temperature value of the flash lamp is not over it after the main lightning flow valuve is obtained
Maximum temperature threshold, it is ensured that the reliability of flash lamp.
S103：The main lightning flow valuve of the flash lamp is set as the main lightning flow valuve of the target.
The adjusting method of the electric current of the embodiment of the present invention, the environment temperature residing for flash lamp is obtained by temperature detecting unit
Currency, and according to the corresponding relation of default ambient temperature value and main lightning flow valuve, it is determined that with the environment temperature currency
The corresponding main lightning flow valuve of target, the main lightning flow valuve of the target is set as by the main lightning flow valuve of the flash lamp so that
The main lightning flow valuve of the flash lamp can be according to residing for it ambient temperature value be adjusted, ensureing flash lamp reliability
Under the premise of, obtain preferable flash lamp effect.
Second embodiment
Based on the above, the embodiment of the present invention also provides a kind of adjusting method of electric current, has flash lamp for one
Terminal, including：
S201：The environment temperature currency residing for the flash lamp is obtained by temperature detecting unit；
Specifically, the temperature detecting unit detected to the environment temperature currency residing for the flash lamp is, for example, to adopt
With thermistor, temperature sensing circuit etc., to detect the ambient temperature value residing for the flash lamp, but the present invention not as
Limit, can carry out appropriate selection according to actual conditions.
S202：Determine the ambient temperature value scope residing for the environment temperature currency；
In practical application, accurate ambient temperature value and main lightning stream can be obtained by the hot simulation model of flash lamp
The corresponding relation of value.In the hot simulation model of flash lamp, it usually needs accurately define the pad and terminal of the flash lamp
The junction temperature peak that the contact area of mainboard and the sudden strain of a muscle are turned off the light, main reason is that：The flash lamp be by its pad with
Heat transfer is realized in the contact of terminal mainboard, and the temperature turned off the light of dodging is if it exceeds the junction temperature peak, it is possible to
It is burned.
When being emulated using the hot simulation model of flash lamp, to obtain under different environment temperatures, described dodge is closed
When the temperature of lamp reaches junction temperature peak, the sudden strain of a muscle is turned off the light the main lightning flow valuve of use, to determine ambient temperature value and main lightning
The corresponding relation of flow valuve.So, it both ensure that sudden strain of a muscle was turned off the light to always work in below junction temperature peak, master can be further improved again
Lightning flow valuve.
Specifically, it is generally the case that the corresponding relation of the ambient temperature value and main lightning flow valuve that are obtained according to simulation result,
It is the corresponding relation of ambient temperature value scope and main lightning flow valuve.So, the environment temperature currency residing for flash lamp is being obtained
Afterwards, the ambient temperature value scope residing for the environment temperature currency is determined, to obtain corresponding main lightning flow valuve.
S203：It is current according to the corresponding relation and the environment temperature of default ambient temperature value scope and main lightning flow valuve
The residing ambient temperature value scope of value, it is determined that the main lightning flow valuve of target corresponding with the environment temperature currency；
Wherein, in the corresponding relation of the default ambient temperature value scope and main lightning flow valuve, at least in the presence of with first
Ambient temperature value is corresponding and will not damage the first of the flash lamp the main lightning flow valuve and corresponding with second environment temperature value
And the second main lightning flow valuve of the flash lamp will not be damaged, the first environment temperature value is less than second environment temperature value, institute
The first main lightning flow valuve is stated more than the second main lightning flow valuve, and with the rise of the ambient temperature value, the main lightning flow valuve
Variation tendency for it is constant or reduce.
S204：The main lightning flow valuve of the flash lamp is set as the main lightning flow valuve of the target.
So, according to the corresponding relation of default ambient temperature value scope and main lightning flow valuve, to the master of the flash lamp
Lightning flow valuve is set, and can not only ensure the reliability of flash lamp, also realizes the dynamic regulation to main lightning flow valuve, is improved
Consumer's Experience.
For example, in one embodiment, the corresponding relation such as table 1 of default ambient temperature value scope and main lightning flow valuve
It is shown：
| Ambient temperature value scope | Main lightning flow valuve |
| C1~C2 | I1 |
| C2~C3 | I2 |
| C3~C4 | I3 |
| C4~C5 | I4 |
Table 1
According to table 1, when the main lightning flow valuve of the flash lamp A in terminal is adjusted, if the ring residing for flash lamp A
The ambient temperature value scope of border temperature currency is C1~C2, flash lamp A main lightning flow valuve is just set as I1；If flash of light
The ambient temperature value scope of environment temperature currency residing for lamp A is C2~C3, just flash lamp A main lightning flow valuve is set as
I2；If the ambient temperature value scope of the environment temperature currency residing for flash lamp A is C3~C4, just by flash lamp A main lightning
Flow valuve is set as I3；By that analogy.
3rd embodiment
In addition, according to simulation result, also the corresponding relation of default ambient temperature value and main lightning flow valuve can be set as
One decreasing function.The decreasing function is relevant with ambient temperature value and main lightning flow valuve, is main lightning flow valuve with ambient temperature value
The function of change, and the main lightning flow valuve reduces with the rise of the ambient temperature value.
Based on the above, in the specific embodiment of the invention, the default ambient temperature value and main lightning flow valuve
Corresponding relation is a decreasing function relevant with main lightning flow valuve with ambient temperature value, and the main lightning flow valuve is with the environment
The rise of temperature value and reduce.
For example, the junction temperature peak of a flash lamp is 135 DEG C, in the hot simulation model progress using the flash lamp
During emulation, obtained simulation result is as shown in Table 1.
| Ambient temperature value (DEG C) | Main lightning flow valuve (mA) | Junction temperature peak (DEG C) | The temperature difference (DEG C) |
| 21 | 1085.7 | 135 | 114 |
| 24 | 1057.1 | 135 | 111 |
| 27 | 1028.6 | 135 | 108 |
| 30 | 1000.0 | 135 | 105 |
| 33 | 971.4 | 135 | 102 |
| 36 | 942.9 | 135 | 99 |
| 38 | 923.8 | 135 | 97 |
| 40 | 904.8 | 135 | 95 |
| 42 | 885.7 | 135 | 93 |
| 44 | 866.7 | 135 | 91 |
| 45 | 857.1 | 135 | 90 |
| 48 | 828.6 | 135 | 87 |
| 51 | 800.0 | 135 | 84 |
| 54 | 771.4 | 135 | 81 |
| 57 | 742.9 | 135 | 78 |
| 60 | 714.3 | 135 | 75 |
Table one
According to the content of table 1, the functional relation set up between ambient temperature value and main lightning flow valuve can be approximately as shown in Figure 3.
And approximate processing is utilized, the curve map shown in Fig. 3 is represented by：I=1285-10T；
Wherein, I represents main lightning flow valuve, and T represents ambient temperature value, and 1285 be constant.
So, the corresponding relation of default ambient temperature value and main lightning flow valuve just could be arranged to decreasing function I=
1285-10T, the main lightning flow valuve is reduced with the rise of the ambient temperature value.As acquisition environment temperature currency T1
When, just obtain the main lightning flow valuve I of corresponding target using the decreasing function1, i.e. I1=1285-10T1, and by flash lamp
Main lightning flow valuve is set as I1。
The adjusting method of the electric current of the embodiment of the present invention, the environment temperature residing for flash lamp is obtained by temperature detecting unit
Currency, and according to the corresponding relation of default ambient temperature value and main lightning flow valuve, it is determined that with the environment temperature currency
The corresponding main lightning flow valuve of target, the main lightning flow valuve of the target is set as by the main lightning flow valuve of the flash lamp so that
The main lightning flow valuve of the flash lamp can be according to residing for it ambient temperature value be adjusted, ensureing flash lamp reliability
Under the premise of, obtain preferable flash lamp effect.
Shown in Figure 2, the embodiment of the present invention also provides a kind of terminal 10, with a flash lamp 11, and the terminal 10 is wrapped
Include：
Temperature detecting unit 21, is disposed in proximity to the position of the flash lamp 11, for obtaining residing for the flash lamp 11
Environment temperature currency；
Determining unit 22, is connected with the temperature detecting unit 21, for according to default ambient temperature value and main lightning
The corresponding relation of flow valuve, it is determined that the main lightning flow valuve of target corresponding with the environment temperature currency；
Setup unit 23, is connected with the determining unit 22 and the flash lamp 11, for by the master of the flash lamp 11
Lightning flow valuve is set as the main lightning flow valuve of the target；
Wherein, the default ambient temperature value is with the corresponding relation of main lightning flow valuve, at least existing and first environment
Temperature value is corresponding and will not damage the first of the flash lamp the main lightning flow valuve and corresponding with second environment temperature value and not
The second main lightning flow valuve of the flash lamp can be damaged, the first environment temperature value is less than second environment temperature value, described the
One main lightning flow valuve is more than the second main lightning flow valuve, and with the rise of the ambient temperature value, the change of the main lightning flow valuve
Change trend is constant or reduction.
Wherein, the temperature detecting unit is, for example, using thermistor, temperature sensing circuit etc., to gather flash lamp institute
The ambient temperature value at place.
In the specific embodiment of the invention, the corresponding relation of the default ambient temperature value and main lightning flow valuve is specially
The corresponding relation of ambient temperature value scope and main lightning flow valuve；
The determining unit includes：
First determination subelement, for determining the ambient temperature value scope residing for the environment temperature currency；
Second determination subelement, for the corresponding relation according to default ambient temperature value scope and main lightning flow valuve and institute
The ambient temperature value scope residing for environment temperature currency is stated, it is determined that the main lightning of target corresponding with the environment temperature currency
Flow valuve.
In the specific embodiment of the invention, the corresponding relation of the default ambient temperature value and main lightning flow valuve for one with
The ambient temperature value decreasing function relevant with main lightning flow valuve, the main lightning flow valuve is with the rise of the ambient temperature value
Reduce.
The terminal of the embodiment of the present invention is, for example, the electronic equipments such as mobile phone, ipad with flash lamp, passes through temperature detection
Unit obtains the environment temperature currency residing for flash lamp, and is closed according to default ambient temperature value is corresponding with main lightning flow valuve
System, it is determined that the main lightning flow valuve of target corresponding with the environment temperature currency, the main lightning flow valuve of the flash lamp is set
It is set to the main lightning flow valuve of the target so that the ambient temperature value that the main lightning flow valuve of the flash lamp can be according to residing for it is entered
Row regulation, on the premise of flash lamp reliability is ensured, obtains preferable flash lamp effect.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (8)
1. a kind of adjusting method of electric current, for a terminal with flash lamp, it is characterised in that including：
The environment temperature currency residing for the flash lamp is obtained by temperature detecting unit；
According to the corresponding relation of default ambient temperature value and main lightning flow valuve, it is determined that corresponding with the environment temperature currency
The main lightning flow valuve of target；
The main lightning flow valuve of the flash lamp is set as the main lightning flow valuve of the target；
Wherein, in the corresponding relation of the default ambient temperature value and main lightning flow valuve, at least in the presence of with first environment temperature
Value is corresponding and will not damage the first of the flash lamp the main lightning flow valuve and corresponding with second environment temperature value and will not damage
Second main lightning flow valuve of the bad flash lamp, the first environment temperature value is less than second environment temperature value, first master
Lightning flow valuve is more than the second main lightning flow valuve, and with the rise of the ambient temperature value, the change of the main lightning flow valuve becomes
Gesture is constant or reduction；The corresponding relation of the default ambient temperature value and main lightning flow valuve is determined in the following manner：It is fixed
The junction temperature peak of the justice flash lamp, is obtained under different environment temperatures, the temperature of the flash lamp reaches junction temperature highest
During value, the main lightning flow valuve that the flash lamp is used.
2. the adjusting method of electric current according to claim 1, it is characterised in that the default ambient temperature value is dodged with main
The corresponding relation of current value is specially the corresponding relation of ambient temperature value scope and main lightning flow valuve；
The corresponding relation according to default ambient temperature value and main lightning flow valuve, it is determined that with the environment temperature currency pair
The step of target answered main lightning flow valuve, includes：
Determine the ambient temperature value scope residing for the environment temperature currency；
According to residing for the corresponding relation and the environment temperature currency of default ambient temperature value scope and main lightning flow valuve
Ambient temperature value scope, it is determined that the main lightning flow valuve of target corresponding with the environment temperature currency.
3. the adjusting method of electric current according to claim 1, it is characterised in that the default ambient temperature value is dodged with main
The corresponding relation of current value be a decreasing function relevant with main lightning flow valuve with ambient temperature value, the main lightning flow valuve with
The rise of the ambient temperature value and reduce.
4. the adjusting method of electric current according to claim 1, it is characterised in that the temperature detecting unit is using temperature-sensitive electricity
Resistance.
5. a kind of terminal, with a flash lamp, it is characterised in that including：
Temperature detecting unit, is disposed in proximity to the position of the flash lamp, for obtaining the environment temperature residing for the flash lamp
Currency；
Determining unit, is connected with the temperature detecting unit, for pair according to default ambient temperature value and main lightning flow valuve
It should be related to, it is determined that the main lightning flow valuve of target corresponding with the environment temperature currency；
Setup unit, is connected with the determining unit and the flash lamp, for the main lightning flow valuve of the flash lamp to be set
For the main lightning flow valuve of the target；
Wherein, in the corresponding relation of the default ambient temperature value and main lightning flow valuve, at least in the presence of with first environment temperature
Value is corresponding and will not damage the first of the flash lamp the main lightning flow valuve and corresponding with second environment temperature value and will not damage
Second main lightning flow valuve of the bad flash lamp, the first environment temperature value is less than second environment temperature value, first master
Lightning flow valuve is more than the second main lightning flow valuve, and with the rise of the ambient temperature value, the change of the main lightning flow valuve becomes
Gesture is constant or reduction；The corresponding relation of the default ambient temperature value and main lightning flow valuve is determined in the following manner：It is fixed
The junction temperature peak of the justice flash lamp, is obtained under different environment temperatures, the temperature of the flash lamp reaches junction temperature highest
During value, the main lightning flow valuve that the flash lamp is used.
6. terminal according to claim 5, it is characterised in that pair of the default ambient temperature value and main lightning flow valuve
The corresponding relation of specially ambient temperature value scope and main lightning flow valuve should be related to；
The determining unit includes：
First determination subelement, for determining the ambient temperature value scope residing for the environment temperature currency；
Second determination subelement, for the corresponding relation and the ring according to default ambient temperature value scope and main lightning flow valuve
Ambient temperature value scope residing for the temperature currency of border, it is determined that the main lightning stream of target corresponding with the environment temperature currency
Value.
7. terminal according to claim 5, it is characterised in that pair of the default ambient temperature value and main lightning flow valuve
It should be related to that for a decreasing function relevant with main lightning flow valuve with ambient temperature value, the main lightning flow valuve is with the environment temperature
The rise of angle value and reduce.
8. terminal according to claim 5, it is characterised in that the temperature detecting unit uses thermistor.
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| CN106535434B (en) * | 2016-11-29 | 2018-12-04 | 维沃移动通信有限公司 | A kind of flash lamp control method and mobile terminal of mobile terminal |
| CN106961516B (en) * | 2017-02-27 | 2020-07-03 | 维沃移动通信有限公司 | Flash lamp control method and device |
| CN108449474A (en) * | 2018-02-28 | 2018-08-24 | 维沃移动通信有限公司 | A kind of control method and mobile terminal of mobile terminal flash lamp |
| CN108917123B (en) * | 2018-05-17 | 2020-09-11 | 广东美的制冷设备有限公司 | Air conditioner and electric control device thereof, parameter adjusting method and readable storage medium |
| CN110519895B (en) * | 2019-07-16 | 2024-06-04 | 闻泰科技(无锡)有限公司 | Flash lamp temperature control method and device and mobile terminal |
| CN110719413B (en) * | 2019-11-25 | 2021-03-19 | 展讯通信（上海）有限公司 | Flash lamp working process control method and device |
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| US8542537B2 (en) * | 2011-04-29 | 2013-09-24 | Spansion Llc | Method and apparatus for temperature compensation for programming and erase distributions in a flash memory |
| JP2014050307A (en) * | 2012-09-04 | 2014-03-17 | Ricoh Co Ltd | Slope compensation circuit and method, and switching regulator |
| CN104239155B (en) * | 2013-06-18 | 2017-11-28 | 联想(北京)有限公司 | A kind of information processing method and electronic equipment |
| CN103501384A (en) * | 2013-09-17 | 2014-01-08 | 广东明创软件科技有限公司 | Method for adjusting electric current of flash lamp of mobile phone for taking picture and mobile phone |
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