CN105511203A - External flash device and mobile terminal using external flash device - Google Patents
External flash device and mobile terminal using external flash device Download PDFInfo
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- CN105511203A CN105511203A CN201410495541.6A CN201410495541A CN105511203A CN 105511203 A CN105511203 A CN 105511203A CN 201410495541 A CN201410495541 A CN 201410495541A CN 105511203 A CN105511203 A CN 105511203A
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- pin
- trigger
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- flasher
- flashlamp
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Abstract
The invention provides an external flash device which is used for exposure compensation of mobile terminal with a flash lamp. The external flash device comprises a flash lamp module, the flash lamp module comprises a controller, a flash unit and a sensing unit, the sensing unit senses light emitted by the flash lamp and determines whether to emit an enablement signal to the controller, and the controller controls the flash unit according to whether the enablement signal is received. The invention also provides a mobile terminal using the external flash device. The external flash device can effectively improve the night scene shooting quality of the mobile terminal.
Description
Technical field
The present invention relates to a kind of external flasher and apply the mobile terminal of this external flasher.
Background technology
In recent years, the camera pixel that portable mobile termianl configures is more and more higher, and main flow pixel is up to 8,000,000 even 13,000,000.But, for the flashlamp of camera configuration is substantially all 1-2 LEDs flashlamp on current mobile terminal, use under the closely environment of general slightly half-light line and substantially can satisfy the demands of consumers, but when taking under the darker remote environment of light end, the LED flashlamp that mobile terminal carries is difficult to play a role.
Summary of the invention
In view of the above circumstances, be necessary to provide a kind of external flasher that can improve night scene shooting quality.
Separately, there is a need to the mobile terminal that this external flasher of a kind of application is provided.
A kind of external flasher, for carrying the exposure compensating of the mobile terminal of flashlamp, this external flasher comprises flash modules, this flash modules comprises controller, flashing light unit and sensing unit, this sensing unit sends/does not send an enable signal to this controller by this light carrying flashlamp of sensing, and this controller controls this flashing light unit according to whether receiving this enable signal.
A kind of mobile terminal, comprise and carry flashlamp and external flasher, this external flasher comprises flash modules, this flash modules comprises controller, flashing light unit and sensing unit, this sensing unit sends/does not send an enable signal to this controller by this light carrying flashlamp of sensing, and this controller controls this flashing light unit according to whether receiving this enable signal.
This external flasher carries the light of flashlamp by sensing movement terminal and is triggered, and effectively can strengthen the night scene shooting quality of this mobile terminal.
Accompanying drawing explanation
Fig. 1 is the planar structure schematic diagram of the external flasher of the present invention.
Fig. 2 is the circuit theory diagrams of the flash modules of flasher external shown in Fig. 1.
The assembling schematic diagram that Fig. 3 is flasher external shown in Fig. 1 and mobile terminal.
Fig. 4 is the workflow diagram of flasher external shown in Fig. 1.
Main element symbol description
| External flasher | 100 |
| Main body | 10 |
| Length adjustment block | 20 |
| Flash modules | 30 |
| Controller | 31 |
| Power supply unit | 33 |
| Flashing light unit | 35 |
| Enable Pin | 351 |
| Power end | 352 |
| Earth terminal | 353 |
| Switch element | 37 |
| Trigger mode selector switch | 371 |
| Single triggers shelves | 3711 |
| Trigger shelves two times | 3713 |
| Enable switch | 373 |
| Sensing unit | 39 |
| Reset terminal | 391 |
| Power input | 392 |
| Signal output part | 393 |
| Ground end | 394 |
| Mobile terminal | 200 |
| Camera | 201 |
| Flashlamp | 202 |
Following embodiment will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Embodiment
See also Fig. 1 and Fig. 3, present pre-ferred embodiments provides a kind of external flasher 100, for the exposure compensating of mobile terminal 200 when night scene is taken.This mobile terminal 200 comprises camera 201 and carries flashlamp 202.This external flasher 100 comprises main body 10, length adjustment block 20 and flash modules 30.This external flasher 100 carries by this mobile terminal 200 of sensing the light that flashlamp 202 sends and excites, to realize the exposure compensating of this mobile terminal 200 when night scene is taken.In the present embodiment, the flashlamp 202 that carries of this mobile terminal 200 can for possessing preflashing function or not possessing preflashing function, the flashlamp 202 with preflashing function has twice flash of light when taking, wherein first time flash of light is preflashing, and the brightness during flash of light comparatively for the second time of flashlamp light luminance during preflashing is dark.
Described main body 10 is a rectangular structure, for installing described length adjustment block 20 and flash modules 30.These length adjustment block 20 both sides coordinate with this main body 10 by the mode arranging chute, are conveniently held on the mobile terminal 200 of different size.
Refer to Fig. 2, described flash modules 30 comprises controller 31, power supply unit 33, flashing light unit 35, switch element 37 and sensing unit 39.This controller 31 comprises power pins A0 for inputting electric energy; Flashlamp enable pin A2 is for exporting an enable signal to described flashing light unit; Single trigger pin B0 is for receiving single trigger pip; Two trigger pin A3 are for receiving two trigger pips; Switch pin A4 is used for receiving key signal; Signal input pin B4 is for receiving the enable signal from described sensing unit; And two grounding pin B2, B3 be used for ground connection.This power supply unit 33 comprises a power output end VDD, provides electric energy for giving this flash modules 30.This flashing light unit 35 comprises Enable Pin 351, power end 352 and earth terminal 353, and this Enable Pin 351 is connected with this flashlamp enable pin A2, and this power end 352 is connected with this power output end VDD, this earth terminal 353 ground connection.In the present embodiment, this flashing light unit 35 is xenon flash lamp unit.This switch element 37 comprises trigger mode selector switch 371 and enable switch 373, and this enable switch 373 is for enable or forbid this flash modules 30.This trigger mode selector switch 371 can be adjusted to single and triggers shelves 3711 and trigger shelves 3713 two times, when this mobile terminal 200 carry flashlamp 202 do not possess preflashing function time, this trigger mode selector switch 371 is adjusted to single and triggers shelves 3711, this flashing light unit 35 carries when flashlamp 202 glistens be triggered at this; When this mobile terminal 200 carry flashlamp 202 possess preflashing function time, this trigger mode selector switch 371 is adjusted to two times and triggers shelves 3713, this flashing light unit 35 is not triggered when this carries flashlamp 202 preflashing, is triggered when this carries the flash of light of flashlamp 202 second time.This sensing unit 39 comprises reset terminal 391, power input 392, signal output part 393 and ground end 394, this reset terminal 391 is by a reset resistor R ground connection, this power input 392 is connected with this power output end VDD, this power output end VDD is by one first electric capacity C1 ground connection simultaneously, with filter out power clutter, this signal output part 393 is connected with this signal input pin B4, for exporting an enable signal to this controller 31, and this ground end 394 ground connection.
The power pins A0 of this controller 31 is connected with the power supply output pin VDD of this power supply unit 33, and this power supply output pin VDD is also by one second electric capacity C2 ground connection simultaneously, with filter out power clutter; This single trigger pin B0 triggers shelves 3711 with the single of this trigger mode selector switch 371 and is connected; This couple of time trigger pin A3 secondaryly triggers shelves 3713 with this pair and is connected; This switch pin A4 is connected with this enable switch 373; The equal ground connection of this two grounding pin B2, B3.This controller 31, under different trigger modes, receives the enable signal sent by this light carrying flashlamp 202 of detection from this sensing unit 39, and controls this flashing light unit 35 according to this enable signal and glisten.
Refer to Fig. 3, this external flasher 100 is fixed on the back side of described mobile terminal 200 by the mode of engaging, and the length of this external flasher 100 is regulated by this length adjustment block 20, be conveniently held on the mobile terminal 200 of different size to make this external flasher 100.Need make described sensing unit 39 near the camera 201 of this mobile terminal 200 and carry flashlamp 202 simultaneously, to be sensed the light carrying flashlamp 202 of this mobile terminal 200 by this sensing unit 39 when taking, and export an enable signal and trigger this external flasher 100 and glisten, to strengthen the exposure effect of this camera 201 when night scene is taken.Carry flashlamp 202 whether possess preflashing function according to this, this external flasher 100 can switch to two trigger modes or single trigger mode by this trigger mode selector switch 371, carries the dissimilar of flashlamp 202 to mate this.Under single trigger mode, this sensing unit 39 is when sensing this and carrying the light that flashlamp 202 sends, and namely export an enable signal to this controller 31, this controller 31 controls this flashing light unit 35 according to this enable signal and glistens.Under two trigger modes, this sensing unit 39 is by comparing the light luminance sensed with a threshold value preset, and then do not send enable signal when the light luminance sensed is less than this threshold value, this external flasher 100 does not work; Enable signal then be sent to this controller 31 when the light luminance sensed is greater than this threshold value, this controller 31 controls this flashing light unit 35 according to this enable signal and glistens, thus occurs the situation of twice flash of light when avoiding this external flasher 100 to use on the mobile terminal 200 with preflashing function.
Refer to Fig. 4, the workflow of this external flasher 100 is as follows:
S1: first determine whether the flashlamp 202 of mobile terminal 200 possesses preflashing function, if the flashlamp 202 of this mobile terminal 200 does not possess preflashing function, then performs step S2; If this mobile terminal 200 possesses preflashing function, then perform step S3;
S2: this trigger mode selector switch 371 is switched to single and trigger shelves 3711;
S21: when the flashlamp 202 of this mobile terminal 200 glistens, this sensing unit 39 senses this flashlamp 202 and works, and output enable signal gives this controller 31, and this controller 31 controls this flashing light unit 35 according to this enable signal and glistens.
S3: this trigger mode selector switch 371 is switched to two times and trigger shelves 3713;
S31: when flashlamp 202 preflashing of this mobile terminal 200, this sensing unit 39 senses this flashlamp 202 and works, but because the light luminance sensed is less than predetermined threshold value, this sensing unit 39 can not output enable signal, therefore this external flasher 100 does not work.
S32: when flashlamp 202 2 flashes of light of this mobile terminal 200, this sensing unit 39 senses this flashlamp 202 and works, the light luminance now sensed is greater than predetermined threshold value, this sensing unit 39 output enable signal gives this controller 31, and this controller 31 controls this flashing light unit 35 according to this enable signal and glistens.
Described external flasher 100 is by having sent enable signal since the light of the flashlamp 202 of its sensing unit 39 sensing movement terminal 200, trigger this external flasher 100 to glisten, effectively can strengthen the exposure effect of this mobile terminal 200 under dark surrounds, promote photograph taking quality.
The above, be only preferred embodiment of the present invention, is not to do any pro forma restriction to the present invention.In addition, those skilled in the art also can do other change in spirit of the present invention, and certainly, these changes done according to the present invention's spirit, all should be included within the present invention's scope required for protection.
Claims (10)
1. an external flasher, for carrying the exposure compensating of the mobile terminal of flashlamp, it is characterized in that: this external flasher comprises flash modules, this flash modules comprises controller, flashing light unit and sensing unit, this sensing unit determines whether to send an enable signal to this controller by this light carrying flashlamp of sensing, and this controller controls this flashing light unit according to whether receiving this enable signal.
2. external flasher as claimed in claim 1, it is characterized in that: this controller comprises power pins, flashlamp enable pin, single trigger pin, two trigger pin, switch pin and signal input pin, this power pins is for inputting electric energy, this flashlamp enable pin is for exporting an enable signal to described flashing light unit, this single trigger pin is for receiving single trigger pip, this pair trigger pin is for receiving two trigger pips, this switch pin is used for receiving key signal, this signal input pin is for receiving the enable signal from described sensing unit.
3. external flasher as claimed in claim 2, it is characterized in that: this external flasher also comprises power supply unit, this power supply unit comprises a power output end, electric energy is provided for giving this flash modules, this flashing light unit comprises Enable Pin and power end, this Enable Pin is connected with this flashlamp enable pin, and this power end is connected with this power output end.
4. external flasher as claimed in claim 3, it is characterized in that: this sensing unit comprises reset terminal, power input and signal output part, this reset terminal is by a reset resistor ground connection, this power input is connected with this power output end, this power output end is by one first capacity earth simultaneously, and this signal output part is connected with this signal input pin.
5. external flasher as claimed in claim 2, it is characterized in that: this external flasher also comprises switch element, this switch element comprises trigger mode selector switch and enable switch, this trigger mode selector switch comprises single and triggers shelves and trigger shelves two times, this single triggers shelves and is connected with this single trigger pin, trigger shelves for this pair time to be connected with this pair trigger pin, this enable switch is connected with this switch pin.
6. external flasher as claimed in claim 5, is characterized in that: when described trigger mode selector switch is positioned at single triggering shelves, this external flasher is in single trigger mode; When described trigger mode selector switch is positioned at two triggering shelves, this external flasher is in two trigger modes.
7. external flasher as claimed in claim 6, it is characterized in that: when described external flasher is in single trigger mode, this sensing unit senses carries the light that flashlamp sends to this, and exporting an enable signal to this controller, this controller controls the flash of light of this flashing light unit according to this enable signal.
8. external flasher as claimed in claim 6, it is characterized in that: when described external flasher is in two trigger modes, the light luminance sensed compares with a threshold value preset by this sensing unit, then do not send enable signal when the light luminance sensed is less than this threshold value to this controller, this external flasher does not work; Then send enable signal when the light luminance sensed is greater than this threshold value to this controller, this controller controls the flash of light of this flashing light unit according to this enable signal.
9. external flasher as claimed in claim 1, is characterized in that: this external flasher also comprises main body and length adjustment block, and these length adjustment block both sides are coordinated with this main body by chute.
10. a mobile terminal, comprises and carries flashlamp, it is characterized in that: this mobile terminal also comprises the external flasher as described in claim 1-9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410495541.6A CN105511203A (en) | 2014-09-25 | 2014-09-25 | External flash device and mobile terminal using external flash device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410495541.6A CN105511203A (en) | 2014-09-25 | 2014-09-25 | External flash device and mobile terminal using external flash device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105511203A true CN105511203A (en) | 2016-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410495541.6A Pending CN105511203A (en) | 2014-09-25 | 2014-09-25 | External flash device and mobile terminal using external flash device |
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| Country | Link |
|---|---|
| CN (1) | CN105511203A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101321425A (en) * | 2007-08-24 | 2008-12-10 | 金毅 | Flash-induction mode control method and device of synchroflash |
| TW201141203A (en) * | 2010-05-14 | 2011-11-16 | Ability Entpr Co Ltd | Flashing control method for a digital camera |
| CN102340632A (en) * | 2011-09-16 | 2012-02-01 | 上海华勤通讯技术有限公司 | Wireless lightning flash device, mobile terminal, wireless lightning flash shooting system and method |
| CN103376753A (en) * | 2012-04-28 | 2013-10-30 | 鸿富锦精密工业（深圳）有限公司 | Standby wake-up circuit and electronic device |
| CN103402291A (en) * | 2013-08-05 | 2013-11-20 | 曾金辉 | External flash light, photo taking system and working method of external flash light |
| CN203587935U (en) * | 2013-09-13 | 2014-05-07 | 潘辉 | High-speed radio trigger structure for photographic equipment |
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2014
- 2014-09-25 CN CN201410495541.6A patent/CN105511203A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101321425A (en) * | 2007-08-24 | 2008-12-10 | 金毅 | Flash-induction mode control method and device of synchroflash |
| TW201141203A (en) * | 2010-05-14 | 2011-11-16 | Ability Entpr Co Ltd | Flashing control method for a digital camera |
| CN102340632A (en) * | 2011-09-16 | 2012-02-01 | 上海华勤通讯技术有限公司 | Wireless lightning flash device, mobile terminal, wireless lightning flash shooting system and method |
| CN103376753A (en) * | 2012-04-28 | 2013-10-30 | 鸿富锦精密工业（深圳）有限公司 | Standby wake-up circuit and electronic device |
| CN103402291A (en) * | 2013-08-05 | 2013-11-20 | 曾金辉 | External flash light, photo taking system and working method of external flash light |
| CN203587935U (en) * | 2013-09-13 | 2014-05-07 | 潘辉 | High-speed radio trigger structure for photographic equipment |
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