CN106211460B - With the adjustable flash lamp circuit of brightness and its driving method, mobile terminal - Google Patents
With the adjustable flash lamp circuit of brightness and its driving method, mobile terminal Download PDFInfo
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- CN106211460B CN106211460B CN201610607690.6A CN201610607690A CN106211460B CN 106211460 B CN106211460 B CN 106211460B CN 201610607690 A CN201610607690 A CN 201610607690A CN 106211460 B CN106211460 B CN 106211460B
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- brightness
- light source
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- current
- flash lamp
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
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Abstract
The invention discloses one kind to have the adjustable flash lamp circuit of brightness, including light source and power supply, the light source is in series with a controllable current source, the controllable current source is connected with a microprocessor, the microprocessor includes memory module and control module, the memory module is stored with the photoelectric characteristic parameter list of the light source, photoelectric characteristic parameter list include multiple brightness values and with the one-to-one current value of brightness value；The control module receives the first brightness value input by user, corresponding first current value of the first brightness value is obtained from memory module, the size of current for controlling controllable current source is the first current value, so that the luminosity of light source is the first brightness value.Driving method and corresponding mobile terminal the invention also discloses flash lamp circuit as described above.The brightness of flash lamp is adjustable in the present invention, sets the brightness of flash lamp according to the hobby of oneself by consumer, allows user to have more selections in actual use, improves the competitiveness of product.
Description
Technical field
The present invention relates to having in the mobile terminal with camera function, more particularly to a kind of mobile terminal, brightness is adjustable
Flash lamp circuit and its driving method.
Background technology
In the mobile Internet epoch, intelligent terminal market business opportunity is unlimited, and the competition between the major well-known manufacturer in the whole world has tended to
Fieriness, is rushed to attack market with surging posture one after another.Recently, the growth momentum of domestic smart mobile phone is also rather powerful, market part
Volume has obtained larger lifting.Horizontal widescreen and super large screen have become a main trend of current mobile phone development.
Increasingly welcome with the smart mobile phone of giant-screen be subject to user, manufacturer more focuses on user experience.And mobile phone
Whether powerful camera function is user's important index to be considered when buying mobile phone.Whether light when taking pictures fills
The factors such as whether foot and photo after taking pictures are clear are the important measurement indexs of photographing function of mobile phone.Mobile phone flashlight is to ensure to use
Family is taken pictures the pith of experience, and in Cell Phone Design, designer can carefully consider its light filling effect, and select to think effect most
A kind of good brightness of flash lamp is as products scheme.But this mode cannot comparably meet all consumer demands.Especially
It is preposition flash lamp, some consumers are desirable for the brightness of higher to reach more preferable dark situation self-timer effect, some consumption
Person then thinks that too high brightness meeting is very dazzling and is difficult to endure.
The content of the invention
In view of this, the present invention provides one kind to have the adjustable flash lamp circuit of brightness and its driving method, flash lamp
Brightness it is adjustable, set the brightness of flash lamp according to the hobby of oneself by consumer, allow user to have in actual use more
More selections, improves the competitiveness of product.
In order to realize above-mentioned purpose, present invention employs following technical solution：
One kind has the adjustable flash lamp circuit of brightness, including light source and power supply, the power supply are provided to the light source
Operating voltage so that the light source luminescent, wherein, the light source is in series with a controllable current source, and the controllable current source is connected with
One microprocessor, the microprocessor control the size of the electric current of the controllable current source, and the electricity of the light source is flowed through with control
Flow size；Wherein, the microprocessor includes memory module and control module, and the memory module is stored with the light of the light source
Electrical characteristic parameter table, the photoelectric characteristic parameter list include multiple brightness values and with the one-to-one current value of brightness value；Institute
State control module and receive the first brightness value input by user, the first brightness value corresponding first is obtained from the memory module
Current value, the size of current for controlling the controllable current source are the first current value, so that the luminosity of the light source is first
Brightness value.
Preferably, according to the photoelectric characteristic of the light source, the luminosity of the light source is divided into N ranks, determines each rank
Current value corresponding to light emission luminance value, forms the photoelectric characteristic parameter list and is stored in the memory module, and N is more than 2
Integer.
Preferably, the value of N is 10~15.
Preferably, the light source is LED light.
The driving method with the adjustable flash lamp circuit of brightness as described above, it includes：According to flash light source
Photoelectric characteristic, N ranks are divided into by the luminosity of light source, determine the current value corresponding to each rank light emission luminance value, form photoelectricity
Characterisitic parameter table；According to the first brightness value input by user, it is corresponding that the first brightness value is obtained from photoelectric characteristic parameter list
First current value, the size of current for controlling controllable current source is the first current value, so that the luminosity of light source is the first brightness
Value；Wherein, N is the integer more than 2.
Further, user judges whether the first brightness value that light source is sent meets current use environment：
If so, then using the parameter of the first current brightness value；If it is not, then user inputs the second brightness value, repeat to debug.
Another aspect of the present invention is to provide a kind of mobile terminal, it includes camera device, wherein, the camera device bag
Include has the adjustable flash lamp circuit of brightness as described above.
Specifically, the mobile terminal is smart mobile phone or tablet computer.
Provided in an embodiment of the present invention to have the adjustable flash lamp circuit of brightness and its driving method, the brightness of flash lamp can
Adjust, set the brightness of flash lamp according to the hobby of oneself by consumer, allow user that there are more selections in actual use,
Improve the competitiveness of product.
Brief description of the drawings
Fig. 1 is the schematic diagram provided in an embodiment of the present invention with the adjustable flash lamp circuit of brightness；
Fig. 2 is the flow chart of the driving method with the adjustable flash lamp circuit of brightness such as Fig. 1.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the accompanying drawings to the specific reality of the present invention
The mode of applying is described in detail.The example of these preferred embodiments is illustrated in the accompanying drawings.Shown in attached drawing and according to
What the embodiments of the present invention of attached drawing description were merely exemplary, and the present invention is not limited to these embodiments.
Here, it should also be noted that, in order to avoid having obscured the present invention because of unnecessary details, in the accompanying drawings only
Show the structure and/or processing step closely related with scheme according to the present invention, and eliminate relation it is little other are thin
Section.
The present invention's provides a kind of mobile terminal, it includes camera device, wherein, the camera device includes having bright
Spend adjustable flash lamp circuit.Specifically, the mobile terminal for example can be smart mobile phone or tablet computer.
Wherein, as shown in Figure 1, described there is the adjustable flash lamp circuit of brightness to include light source 1 and power supply 2, institute
State power supply 2 and provide operating voltage so that the light source 1 shines to the light source 1.Wherein, the light source 1 is in series with a controllable electric
Stream source 3, the controllable current source 3 are connected with a microprocessor 4, and the microprocessor 4 controls the electric current of the controllable current source 3
Size, the size of current of the light source 1 is flowed through with control, so that 1 luminosity of light source can select to control.
Specifically, memory module 41 and control module 42, the memory module 41 are included refering to Fig. 1, the microprocessor 4
The photoelectric characteristic parameter list of the light source 1 is stored with, the photoelectric characteristic parameter list includes multiple brightness values and and brightness value
One-to-one current value.The control module 42 receives the first brightness value input by user, is obtained from the memory module 41
Corresponding first current value of the first brightness value is taken, the size of current for controlling the controllable current source 3 is the first current value, so that institute
The luminosity for stating light source 1 corresponds to the first brightness value.Wherein, first brightness value is to use ring according to current by user
Border and the hobby selection setting of itself.
Specifically, the photoelectric characteristic parameter list can be set in the following way：It is special according to the photoelectricity of the light source 1
Property, the luminosity of the light source 1 is divided into N ranks, determines the current value corresponding to each rank light emission luminance value, forms the light
Electrical characteristic parameter table is stored in the memory module 41；Wherein, N is the integer more than 2.Numerical value of N is that user can select
Gray scale quantity, normally, the value of N is preferably 10~15.
In the present embodiment, the light source 1 is LED light.
Refering to Fig. 2, the driving method as described above with the adjustable flash lamp circuit of brightness includes：
(a), photoelectric characteristic parameter list is determined.Specifically, according to the photoelectric characteristic of flash light source, by the luminance of light source
Degree is divided into N ranks, determines the current value corresponding to each rank light emission luminance value, forms photoelectric characteristic parameter list and is stored in memory module
In.
(b), user adjusts brightness of flash lamp.Specifically, user is according to current use environment and the hobby of itself, choosing
The brightness for setting flash lamp is selected as the first brightness value.
(c), light source drive current is configured.Specifically, control module is according to the first brightness value input by user, from photoelectricity
Corresponding first current value of the first brightness value is obtained in characterisitic parameter table, the size of current for controlling controllable current source is the first electric current
Value, i.e. the driving current for controlling light source is the first current value.
(d), flash lamp pilot is bright.Light source luminescent is driven according to the first current value.
(e), user judges whether present intensity meets the requirements.Specifically, user judges the first brightness value that light source is sent
Whether current use environment and itself hobby requirement are met：If so, then using the parameter of the first current brightness value；If
No, then return to step (b), readjusts brightness of flash lamp, i.e. user inputs the second brightness value after adjustment, repeat step (b)
~(e) is debugged, untill meeting the requirements.
The offer that example is provided is performed as described above has the adjustable flash lamp circuit of brightness and its driving method, flash lamp
Brightness is adjustable, can set the brightness of flash lamp according to the hobby of oneself by consumer, allow user to have in actual use more
More selections, improves the competitiveness of product.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only will including those
Element, but also including other elements that are not explicitly listed, or further include as this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Also there are other identical element in process, method, article or equipment including the key element.
The above is only the embodiment of the application, it is noted that for the ordinary skill people of the art
For member, on the premise of the application principle is not departed from, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as the protection domain of the application.
Claims (7)
1. one kind has the adjustable flash lamp circuit of brightness, including light source and power supply, the power supply provides work to the light source
Make voltage so that the light source luminescent, it is characterised in that the light source is in series with a controllable current source, and the controllable current source connects
A microprocessor is connected to, the microprocessor controls the size of the electric current of the controllable current source, and the light source is flowed through with control
Size of current；
Wherein, the microprocessor includes memory module and control module, and the memory module is stored with the photoelectricity of the light source
Characterisitic parameter table, the photoelectric characteristic parameter list include multiple brightness values and with the one-to-one current value of brightness value；It is described
Control module receives the first brightness value input by user, and corresponding first electric current of the first brightness value is obtained from the memory module
Value, the size of current for controlling the controllable current source is the first current value, so that the luminosity of the light source is the first brightness
Value；
Wherein, according to the photoelectric characteristic of the light source, the luminosity of the light source is divided into N ranks, determines each rank luminance
Current value corresponding to angle value, forms the photoelectric characteristic parameter list and is stored in the memory module, and N is integer, the value of N
For 10~15.
2. according to claim 1 have the adjustable flash lamp circuit of brightness, it is characterised in that the light source is LED light.
A kind of 3. driving method with the adjustable flash lamp circuit of brightness as claimed in claim 1, it is characterised in that bag
Include：
According to the photoelectric characteristic of flash light source, the luminosity of light source is divided into N ranks, determines that each rank light emission luminance value institute is right
The current value answered, forms photoelectric characteristic parameter list；
According to the first brightness value input by user, corresponding first electric current of the first brightness value is obtained from photoelectric characteristic parameter list
Value, the size of current for controlling controllable current source is the first current value, so that the luminosity of light source is the first brightness value；
Wherein, N is integer, and the value of N is 10~15.
4. the driving method according to claim 3 with the adjustable flash lamp circuit of brightness, it is characterised in that user sentences
Whether the first brightness value that disconnected light source is sent meets current use environment：
If so, then using the parameter of the first current brightness value；
If it is not, then user inputs the second brightness value, repeat to debug.
5. the driving method with the adjustable flash lamp circuit of brightness according to claim 3 or 4, it is characterised in that institute
It is LED light to state light source.
6. a kind of mobile terminal, including camera device, it is characterised in that the camera device includes as claimed in claim 1 or 2
There is the adjustable flash lamp circuit of brightness.
7. mobile terminal according to claim 6, it is characterised in that the mobile terminal is smart mobile phone or tablet electricity
Brain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610607690.6A CN106211460B (en) | 2016-07-28 | 2016-07-28 | With the adjustable flash lamp circuit of brightness and its driving method, mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610607690.6A CN106211460B (en) | 2016-07-28 | 2016-07-28 | With the adjustable flash lamp circuit of brightness and its driving method, mobile terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106211460A CN106211460A (en) | 2016-12-07 |
| CN106211460B true CN106211460B (en) | 2018-05-11 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610607690.6A Active CN106211460B (en) | 2016-07-28 | 2016-07-28 | With the adjustable flash lamp circuit of brightness and its driving method, mobile terminal |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1658059A (en) * | 2004-02-19 | 2005-08-24 | 乐金电子(中国)研究开发中心有限公司 | Device and method for regulating brightness of flash lamp of camera of mobile terminal |
| CN1776518A (en) * | 2004-11-15 | 2006-05-24 | 乐金电子(中国)研究开发中心有限公司 | Built-in flashing derive device of mobile communication terminal |
| CN104661413A (en) * | 2015-03-04 | 2015-05-27 | 广东欧珀移动通信有限公司 | Method and device for adjusting brightness of flashlight |
| CN105049742A (en) * | 2015-08-21 | 2015-11-11 | 上海与德通讯技术有限公司 | Mobile terminal and dual color temperature compensation method |
| CN105228315A (en) * | 2015-10-20 | 2016-01-06 | 上海卓易科技股份有限公司 | The flash unit of color changeable and color changing method, mobile device |
-
2016
- 2016-07-28 CN CN201610607690.6A patent/CN106211460B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1658059A (en) * | 2004-02-19 | 2005-08-24 | 乐金电子(中国)研究开发中心有限公司 | Device and method for regulating brightness of flash lamp of camera of mobile terminal |
| CN1776518A (en) * | 2004-11-15 | 2006-05-24 | 乐金电子(中国)研究开发中心有限公司 | Built-in flashing derive device of mobile communication terminal |
| CN104661413A (en) * | 2015-03-04 | 2015-05-27 | 广东欧珀移动通信有限公司 | Method and device for adjusting brightness of flashlight |
| CN105049742A (en) * | 2015-08-21 | 2015-11-11 | 上海与德通讯技术有限公司 | Mobile terminal and dual color temperature compensation method |
| CN105228315A (en) * | 2015-10-20 | 2016-01-06 | 上海卓易科技股份有限公司 | The flash unit of color changeable and color changing method, mobile device |
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| Publication number | Publication date |
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| CN106211460A (en) | 2016-12-07 |
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Effective date of registration: 20220317 Address after: 400000 floor 2, No. 27-5, Fengsheng Road, Jinfeng Town, Jiulongpo District, Chongqing Patentee after: CHONGQING BIO NEWVISION MEDICAL EQUIPMENT Ltd. Address before: 516006 Zhongkai hi tech Zone, Huizhou, Guangdong, 86 Chang seven Road West Patentee before: HUIZHOU TCL MOBILE COMMUNICATION Co.,Ltd. |
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