CN106657752A - Light filling apparatus and light filling method of front camera - Google Patents
Light filling apparatus and light filling method of front camera Download PDFInfo
- Publication number
- CN106657752A CN106657752A CN201710123546.XA CN201710123546A CN106657752A CN 106657752 A CN106657752 A CN 106657752A CN 201710123546 A CN201710123546 A CN 201710123546A CN 106657752 A CN106657752 A CN 106657752A
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- Prior art keywords
- led flash
- light
- colour temperature
- brightness
- led
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/56—Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/74—Circuitry for compensating brightness variation in the scene by influencing the scene brightness using illuminating means
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/80—Camera processing pipelines; Components thereof
- H04N23/84—Camera processing pipelines; Components thereof for processing colour signals
- H04N23/88—Camera processing pipelines; Components thereof for processing colour signals for colour balance, e.g. white-balance circuits or colour temperature control
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Stroboscope Apparatuses (AREA)
- Studio Devices (AREA)
Abstract
The present invention discloses a light filling apparatus of a front camera, which is applied to a portable electronic device. The portable electronic device comprises a body and a front camera installed at the front of the body. The light filling apparatus of the front camera comprises a light filling light source and a drive chip. The light filling light source comprises a first LED flash light and a second LED flash light that are disposed at the front of the body. A color temperature of the first LED flash light is higher than a color temperature of the second LED flash light. The drive chip adjusts currents of the first LED flash light and the second LED flash light and a current ratio of the first LED flash light to the second LED flash light so as to control a color temperature and brightness of the light filling light source. Through adoption of the light filling apparatus and light filling method of the front camera, light filling effects are diversified by adjusting color temperature values of two LED flash lights.
Description
Technical field
The present invention relates to portable electronic device, more particularly to a kind of front-facing camera for being applied to portable electronic device
Light compensating apparatus and method.
Background technology
With the continuous development of communication terminal and consumer electronics product, increasing terminal such as smart mobile phone,
The products such as panel computer all possess photography, camera function, and it has been prepared for replacing traditional picture pick-up device to become current main flow bat
According to instrument.Recent years, with the gradually rise of social networks, auto heterodyne has had changed into a kind of popular social phenomenon,
The utilization rate of front-facing camera is also constantly being lifted.
In order to obtain preferably self-timing image forming effect under more dim environment, existing to carry intelligent terminal usual
Using the display backlight light filling scheme, preposition Flash LED/light sources light filling that are shot monoblock front screen as light source
Scheme or preposition Flash LED/light sources add the mixing light filling scheme of screen flash.
However, compared with traditional specialty camera, generally using single in the existing light filling scheme for carrying intelligent terminal
LED flash, therefore glisten lamp color temperature, brightness fixes, light filling effect is single, it is impossible to realize special shooting effect.
The content of the invention
Present invention is primarily targeted at overcoming the defect of prior art, there is provided a kind of adjustable front-facing camera light filling
Device and light compensation method.
To reach above-mentioned purpose, the present invention provides a kind of front-facing camera light filling dress for being applied to portable electronic device
Put, the portable electronic device includes body and is installed on the positive front-facing camera of the body.The front-facing camera
Light compensating apparatus include：Supplementary lighting sources, it includes being arranged at positive first LED flash of the body and the second LED flash,
Colour temperature of the colour temperature of wherein described first LED flash higher than second LED flash；Driving chip, it passes through to adjust institute
The size of current and electric current of the first LED flash and the second LED flash are stated than controlling the colour temperature of the supplementary lighting sources and bright
Degree.
Preferably, the first LED flash color temperature index number is 5500K-6000K, and the second LED flash colour temperature refers to
Number is 2500K-3000K.
Preferably, the driving chip is by regulation first LED flash and the size of current of the second LED flash
The brightness of the supplementary lighting sources is controlled, the ratio control of the electric current by adjusting first LED flash and the second LED flash
The colour temperature of the supplementary lighting sources is between 3000K-5500K.
Preferably, the front-facing camera light compensating apparatus also include control unit, for providing light filling according to user's request
Adjustment interface, the light filling adjustment interface has the colour temperature of the supplementary lighting sources and the input options of brightness；The driving chip
First LED flash and the second LED flash are adjusted to the colour temperature of the supplementary lighting sources and the input of brightness according to user
Size of current and electric current ratio so that the colour temperature and brightness regulation of the supplementary lighting sources are the colour temperature of the user input and bright
Degree.
Preferably, first LED flash and the second LED flash are disposed adjacent top positive in the body.
Present invention also offers a kind of light compensation method using above-mentioned front-facing camera light compensating apparatus, comprises the following steps：
S1：Front-facing camera is opened, while opening first LED flash and the second LED flash of the supplementary lighting sources；
S2：By adjusting the size of current and electric current ratio of first LED flash and the second LED flash to control
State colour temperature and the brightness of supplementary lighting sources.
Preferably, step S2 includes：
S21：Light filling adjustment interface is provided, the light filling adjustment interface has the defeated of the colour temperature of the supplementary lighting sources and brightness
Enter option；
S22：First LED flash and the are adjusted according to input of the user to the colour temperature of the supplementary lighting sources and brightness
The size of current and electric current ratio of two LED flashes, so that the colour temperature and brightness regulation of the supplementary lighting sources are the user input
Colour temperature and brightness.
Preferably, the first LED flash color temperature index number is 5500K-6000K, and the second LED flash colour temperature refers to
Number is 2500K-3000K.
Preferably, controlled by adjusting the size of current of first LED flash and the second LED flash in step S2
The brightness of the supplementary lighting sources, it is described by adjusting the ratio control of electric current of first LED flash and the second LED flash
The colour temperature of supplementary lighting sources is between 3000K-5500K.
Preferably, first LED flash and the second LED flash are disposed adjacent top positive in the body.
Compared to prior art, the front-facing camera light compensating apparatus and light compensation method of the present invention overcome existing light compensating apparatus
The single problem of light filling effect, by adjust the color temperature value of two LED flashes can be realized according to user preferences it is different cold
Tone or warm tones light filling effect.In addition can also be for user to adjust brightness of flash lamp the different sensitiveness of light intensity
Section, allows user to feel unlikely excessively dazzling, while taking the higher photo of quality.
Description of the drawings
Fig. 1 show the schematic diagram of the portable electronic device of one embodiment of the invention；
Fig. 2 show the block diagram of the front-facing camera light compensating apparatus of one embodiment of the invention；
Fig. 3 show the flow chart of the front-facing camera light compensation method of one embodiment of the invention.
Specific embodiment
To make present disclosure more clear understandable, below in conjunction with Figure of description, present disclosure is made into one
Step explanation.Certainly the specific embodiment, the general replacement known to those skilled in the art be the invention is not limited in
Cover within the scope of the present invention.
The invention provides a kind of front-facing camera light compensating apparatus for being applied to portable electronic device, refer to Fig. 1, should
Portable electronic device includes body 1, is installed on the positive front-facing camera 2 of body and adjustable LED light compensating apparatus 3.Please join
Fig. 1 and Fig. 2 is read, front-facing camera light compensating apparatus 3 include supplementary lighting sources 31 and driving chip 32.Supplementary lighting sources include being arranged at this
The positive LED flash 312 of first LED flash 311 and second of body 2, wherein the colour temperature of the first LED flash 311 is higher than the
The colour temperature of two LED flashes 312.Because light source color temperature is different, sensation that is photochromic and bringing is also different.When colour temperature is less than 3000K
When, it is warm colour temperature, produce steady, warm sensation；It is middle colour temperature when colour temperature is located between 3000-5000K, produces
Frank sensation；It is cold-type yellow (clear) colour temperature when colour temperature is more than 5000K, brings cold sensation.In the present embodiment, a LED is dodged
Light lamp color temperature index is set to 5500K-6000K, and the second LED flash color temperature index number is set to 2500K-3000K.Thus,
One LED flash sends cool colour light modulation, and the second LED flash sends warm colour light modulation.Preferably, by two LED flash phases
Neighbour is arranged at the positive top of body 1, can make the shooting effect of the front-facing camera for arriving final after two kinds of light mixture of colours more
It is good.Driving chip 32 is controlled by adjusting the size of current and electric current ratio of the first LED flash 311 and the second LED flash 312
The colour temperature of supplementary lighting sources processed 31 and brightness.Specifically, driving chip 32 is dodged by adjusting the first LED flash 311 and the 2nd LED
The size of current of light lamp 312 controls the total brightness of supplementary lighting sources 31, by adjusting the first LED flash 311 and the 2nd LED flashes of light
The ratio of the electric current of lamp 312 controls the total colour temperature of supplementary lighting sources.Wherein, driving chip exists the total colour temperature control of supplementary lighting sources
Between 3000K-5500K.In the present embodiment, driving chip 32 can adopt the core of the LM3643 models of Texas Instruments' production
Piece.
Table 1 is shown when total driving current is 1A, the first LED flash 311 and the 2nd LED in the embodiment of the present invention
The current ratio of flash lamp 312 and the supplementary lighting sources colour temperature variation relation for being obtained.
Table 1
In a preferred embodiment of the present invention, front-facing camera light compensating apparatus adjust light filling in response to the request of user
The colour temperature of light source and brightness.Specifically, front-facing camera light compensating apparatus also include control unit, control unit can according to
The request at family provides a light filling adjustment interface.Show on this light filling adjustment interface colour temperature and the brightness of supplementary lighting sources
Input options, for user input.After user input, driving chip adjusts the first LED flash automatically according to the input of user
With the size of current and electric current ratio of the second LED flash so that the colour temperature and brightness regulation of supplementary lighting sources are for user input
Colour temperature and brightness.Preferably, colour temperature option and the brightness of supplementary lighting sources is shown on light filling adjustment interface in the way of progress bar
Option, colour temperature and brightness are selected by user's finger dragging.In this way, user can be according to the hobby of oneself and habit
It is used to select corresponding shooting effect.
Fig. 3 show the flow chart of the light compensation method of the above-mentioned front-facing camera light compensating apparatus of utilization of the present invention.Refer to
Fig. 3, in the present embodiment, light compensation method is comprised the following steps：
S1：Front-facing camera is opened, while first LED flash and the second LED flash of supplementary lighting sources；
S2：By adjusting the size of current and electric current ratio of first LED flash and the second LED flash to control
State colour temperature and the brightness of supplementary lighting sources.
It is preferred that having provided a user with a light filling adjustment interface in step S2 first, show on the light filling adjustment interface
The colour temperature of supplementary lighting sources and the input options of brightness supply user input.After the completion of user input, driving chip accordingly adjusts
The size of current of one LED flash and the second LED flash, obtains the light filling brightness needed for user, while driving chip also phase
The electric current ratio of the first LED flash and the second LED flash should be adjusted, the light filling colour temperature needed for user is obtained.
In sum, compared to prior art, the front-facing camera light compensating apparatus and light compensation method of the present invention overcome now
There is the single problem of light compensating apparatus light filling effect, can be according to user preferences reality by adjusting the color temperature value of two LED flashes
Existing different cool tone or warm tones light filling effect.In addition the different sensitiveness that can also be for user to light intensity are bright to flash lamp
Degree is adjusted, and allows user to feel unlikely excessively dazzling, while taking the higher photo of quality.
Although the present invention is disclosed as above with preferred embodiment, so many embodiments are illustrated only for the purposes of explanation
, the present invention is not limited to, those skilled in the art can make without departing from the spirit and scope of the present invention
Some changes and retouching, the protection domain that the present invention is advocated should be to be defined described in claims.
Claims (10)
1. a kind of front-facing camera light compensating apparatus for being applied to portable electronic device, the portable electronic device includes body
Be installed on the positive front-facing camera of the body, it is characterised in that the front-facing camera light compensating apparatus include：
Supplementary lighting sources, it includes being arranged at positive first LED flash of the body and the second LED flash, wherein described
Colour temperature of the colour temperature of the first LED flash higher than second LED flash；
Driving chip, it is controlled by adjusting the size of current and electric current ratio of first LED flash and the second LED flash
Make colour temperature and the brightness of the supplementary lighting sources.
2. front-facing camera light compensating apparatus according to claim 1, it is characterised in that the first LED flash colour temperature
Index is 5500K-6000K, and the second LED flash color temperature index number is 2500K-3000K.
3. front-facing camera light compensating apparatus according to claim 1, it is characterised in that the driving chip is by adjusting institute
The size of current for stating the first LED flash and the second LED flash controls the brightness of the supplementary lighting sources, by adjusting described the
The ratio of the electric current of one LED flash and the second LED flash controls the colour temperature of the supplementary lighting sources between 3000K-5500K.
4. front-facing camera light compensating apparatus according to claim 1, it is characterised in that also including control unit, for root
Light filling adjustment interface is provided according to user's request, the light filling adjustment interface has the colour temperature of the supplementary lighting sources and the input of brightness
Option；The driving chip adjusts the LED flashes of light according to user to the colour temperature of the supplementary lighting sources and the input of brightness
The size of current and electric current ratio of lamp and the second LED flash, so that the colour temperature and brightness regulation of the supplementary lighting sources are the use
The colour temperature of family input and brightness.
5. front-facing camera light compensating apparatus according to claim 1, it is characterised in that first LED flash and
Two LED flashes are disposed adjacent top positive in the body.
6. the light compensation method of the front-facing camera light compensating apparatus described in a kind of utilization claim 1, it is characterised in that including following
Step：
S1：Front-facing camera is opened, while opening first LED flash and the second LED flash of the supplementary lighting sources；
S2：The benefit is controlled by adjusting the size of current and electric current ratio of first LED flash and the second LED flash
The colour temperature of radiant and brightness.
7. light compensation method according to claim 6, it is characterised in that step S2 includes：
S21：Light filling adjustment interface is provided, the light filling adjustment interface has the input choosing of the colour temperature of the supplementary lighting sources and brightness
；
S22：First LED flash and second are adjusted to the colour temperature of the supplementary lighting sources and the input of brightness according to user
The size of current and electric current ratio of LED flash, so that the colour temperature and brightness regulation of the supplementary lighting sources are the user input
Colour temperature and brightness.
8. light compensation method according to claim 6, it is characterised in that the first LED flash color temperature index number is
5500K-6000K, the second LED flash color temperature index number is 2500K-3000K.
9. light compensation method according to claim 6, it is characterised in that by adjusting the LED flashes of light in step S2
The size of current of lamp and the second LED flash controls the brightness of the supplementary lighting sources, by adjust first LED flash and
The ratio of the electric current of the second LED flash controls the colour temperature of the supplementary lighting sources between 3000K-5500K.
10. light compensation method according to claim 6, it is characterised in that first LED flash and the 2nd LED glisten
Lamp is disposed adjacent top positive in the body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710123546.XA CN106657752A (en) | 2017-03-03 | 2017-03-03 | Light filling apparatus and light filling method of front camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710123546.XA CN106657752A (en) | 2017-03-03 | 2017-03-03 | Light filling apparatus and light filling method of front camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106657752A true CN106657752A (en) | 2017-05-10 |
Family
ID=58847017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710123546.XA Pending CN106657752A (en) | 2017-03-03 | 2017-03-03 | Light filling apparatus and light filling method of front camera |
Country Status (1)
| Country | Link |
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| CN (1) | CN106657752A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107395999A (en) * | 2017-09-11 | 2017-11-24 | 厦门美图移动科技有限公司 | Light compensation method, device and mobile terminal |
| CN107809599A (en) * | 2017-11-16 | 2018-03-16 | 维沃移动通信有限公司 | A kind of light compensation method and device and mobile terminal |
| CN108932013A (en) * | 2017-05-23 | 2018-12-04 | 仁宝电脑工业股份有限公司 | Electronic device |
| CN109286808A (en) * | 2017-07-21 | 2019-01-29 | 北京小米移动软件有限公司 | White balance calibration method and device |
| CN110177190A (en) * | 2019-04-26 | 2019-08-27 | 深圳前海达闼云端智能科技有限公司 | Light supplement equipment, light supplement calibration method and device, storage medium and equipment |
| CN112034665A (en) * | 2020-09-15 | 2020-12-04 | Oppo（重庆）智能科技有限公司 | Flash lamp assembly and electronic equipment |
| US20220006933A1 (en) * | 2019-03-21 | 2022-01-06 | Event Capture Systems, Inc. | Infrared and broad spectrum illumination for simultaneous machine vision and human vision |
-
2017
- 2017-03-03 CN CN201710123546.XA patent/CN106657752A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108932013A (en) * | 2017-05-23 | 2018-12-04 | 仁宝电脑工业股份有限公司 | Electronic device |
| US10697580B2 (en) | 2017-05-23 | 2020-06-30 | Compal Electronics, Inc. | Electronic device |
| CN109286808A (en) * | 2017-07-21 | 2019-01-29 | 北京小米移动软件有限公司 | White balance calibration method and device |
| CN107395999A (en) * | 2017-09-11 | 2017-11-24 | 厦门美图移动科技有限公司 | Light compensation method, device and mobile terminal |
| CN107809599A (en) * | 2017-11-16 | 2018-03-16 | 维沃移动通信有限公司 | A kind of light compensation method and device and mobile terminal |
| CN107809599B (en) * | 2017-11-16 | 2020-02-18 | 维沃移动通信有限公司 | Light supplementing method and device and mobile terminal |
| US20220006933A1 (en) * | 2019-03-21 | 2022-01-06 | Event Capture Systems, Inc. | Infrared and broad spectrum illumination for simultaneous machine vision and human vision |
| US11943526B2 (en) * | 2019-03-21 | 2024-03-26 | Event Capture Systems, Inc. | Infrared and broad spectrum illumination for simultaneous machine vision and human vision |
| CN110177190A (en) * | 2019-04-26 | 2019-08-27 | 深圳前海达闼云端智能科技有限公司 | Light supplement equipment, light supplement calibration method and device, storage medium and equipment |
| CN112034665A (en) * | 2020-09-15 | 2020-12-04 | Oppo（重庆）智能科技有限公司 | Flash lamp assembly and electronic equipment |
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