CN104159012A - Dual-camera photo device - Google Patents
Dual-camera photo device Download PDFInfo
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- CN104159012A CN104159012A CN201410407216.XA CN201410407216A CN104159012A CN 104159012 A CN104159012 A CN 104159012A CN 201410407216 A CN201410407216 A CN 201410407216A CN 104159012 A CN104159012 A CN 104159012A
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Abstract
The present invention provides a dual-camera photo device comprising a first photo taking module and a second photo taking module, the first photo taking module comprises a first camera configured on the front surface of a mobile phone, a first LED and a first photosensitive element configured on the back surface of the mobile phone, the second photo taking module comprises a second camera configured on the back surface of the mobile phone, a second LED and a second photosensitive element configured on the front surface of the mobile phone; the first photosensitive element, the first camera and the first LED are used cooperatively; and the second photosensitive element, the second camera and the second LED are used cooperatively. Through cooperation among a photosensitive element, a camera and an LED which are configured at the opposite side, the present invention controls the LED via the photosensitive element configured at the opposite side to perform light compensation operation on a subject, so that the colors of photos are optimized.
Description
Technical field
The present invention relates to electronic technology field, refer to especially a kind of camera.
Background technology
Since First camera is in the world born, is just doomed camera and will have changed the mankind's life and history.Camera is called for short camera, is a kind of equipment that utilizes optical imaging concept to form image and use negative writing image.
The light that subject reflects forms sub-image on the photosensitive material of subject in camera bellows after focusing on by the shutter of photographic film and control exposure, forms permanent image through rinsing to process.Camera architecture is the earliest very simple, only comprises camera bellows, camera lens and photosensitive material.Modern camera more complicated, there is camera lens, aperture, shutter, find range, find a view, the system such as photometry, film trasport, counting, auto heterodyne, focusing, zoom, modern camera is the complex product of the technology such as a kind of combination optics, precision optical machinery, electronic technology and chemistry.
Digital camera is a kind of camera that utilizes electronic sensor optical image to be converted to electronic data.On film, to carry out the principle of document image by the chemical change of silver bromide different from ordinary camera, and the transducer of digital camera is a kind of electric charge coupling (CCD) or complementary metal oxide semiconductors (CMOS) (CMOS) of photoinduction formula., before computer, conventionally can first be stored in digital storage equipment at image transmitting.
Mobile phone and camera are born combinations, and along with the development of software and hardware, the shooting effect of mobile phone camera, more and more approaches the Self-timer of mm professional camera special, especially mobile phone camera, and mm professional camera special is incomparable especially.The moment of dual camera camera arrangement, mainly operates by user's oneself experience, and due to the restriction of shooting angle and shooting posture, the operation such as focusing, light filling of the moment photo that causes autodyning cannot be optimized.
Summary of the invention
The present invention proposes a kind of dual camera camera arrangement, has solved restriction, the photo due to shooting angle and posture in prior art and light filling has been operated to the problem that cannot optimize.
Technical scheme of the present invention is achieved in that
A kind of dual camera camera arrangement, comprise: be arranged on the first taking module and the second taking module, described the first taking module comprises the first camera, a LED who is arranged on mobile phone front and the first photo-sensitive cell that is arranged on the mobile phone back side, and described the second taking module comprises second camera, the 2nd LED that is arranged on the mobile phone back side and the second photo-sensitive cell that is arranged on mobile phone front; Described the first photo-sensitive cell, the first camera and a LED are used in conjunction with, and described the second photo-sensitive cell, second camera and the 2nd LED are used in conjunction with;
The one DA transducer, is connected to described the first photo-sensitive cell, and the analog electrical signal of its output is converted to digital signal;
The 2nd DA transducer, is connected to described the second photo-sensitive cell, and the analog electrical signal of its output is converted to digital signal;
Image processing module, receives the picture signal that described the first camera and second camera are exported, and is converted into digital signal;
Light-adjusting module, receives the digital signal that a described DA transducer and the 2nd DA transducer are exported, according to the tables of data output dim signal prestoring;
The first dim signal is couple to the first power transformation circuit, and control the first power transformation circuit outputs to the current value of a LED;
The second dim signal is couple to the second power transformation circuit, and control the second power transformation circuit outputs to the current value of the 2nd LED;
Described the first power transformation circuit comprises:
Transformer, comprise former limit winding and secondary winding, former limit winding comprises first end and the second end, secondary winding comprises first end and the second end, former limit winding first end is connected to described storage battery, secondary winding the second end is connected to secondary earth potential, and former limit winding first end and secondary winding the second end are Same Name of Ends;
The first switching tube, its source electrode is connected to transformer primary side winding the second end, and its drain electrode is connected to former limit earth potential, and its grid is connected to the first switch driver;
The first switch driver, comprise the first transistor and transistor seconds, the first transistor is NPN transistor, transistor seconds is PNP transistor, the base stage of the first transistor and transistor seconds links together as control end, and control end receives the first dim signal of described light-adjusting module output, and the emitter of the first transistor and transistor seconds links together as output, the collector electrode of the first transistor is connected to storage battery, and the collector electrode of transistor seconds is connected to former limit earth potential;
The first diode, its anodic bonding is to transformer secondary winding first end, and its negative electrode is connected to the first inductor;
The common port of the first inductor and the first capacitor is as output, and the other end of the first capacitor is connected to secondary earth potential;
Described the second power transformation circuit comprises:
The second inductor, its one end is connected to described power supply;
Second switch pipe and the 3rd switching tube, the source electrode of second switch pipe and the 3rd switching tube links together and is connected to the other end of the second inductor, the drain electrode of second switch pipe is connected to secondary earth potential, the drain electrode of the 3rd switching tube is connected to the second capacitor, and the other end of the second capacitor is connected to secondary earth potential;
Second switch driver, it is the UC3714 of Texas Instruments chip, clock signal based on control end input produces the switching drive signal of two-way complementation, one tunnel is coupled to described second switch tube grid, another road is coupled to described the 3rd switching tube grid, and its control end is connected to described the second dim signal.
The invention has the beneficial effects as follows:
Be used in conjunction with by the photo-sensitive cell and camera, the LED that are arranged on an other side, the photo-sensitive cell control LED arranging by opposite side carries out light filling operation to reference object, and the color and luster of photographic images is optimized.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the control block diagram of dual camera camera arrangement of the present invention;
Fig. 2 is the circuit diagram of the first power transformation circuit;
Fig. 3 is the circuit diagram of the second power transformation circuit.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, a kind of dual camera camera arrangement of the present invention, comprise: be arranged on the first taking module 10 and the second taking module 20, described the first taking module 10 comprises the first camera 11, a LED13 who is arranged on mobile phone front and the first photo-sensitive cell 12 that is arranged on the mobile phone back side, and described the second taking module 20 comprises second camera 21, the 2nd LED23 that is arranged on the mobile phone back side and the second photo-sensitive cell 22 that is arranged on mobile phone front; Described the first photo-sensitive cell 12, the first camera 11 and a LED13 are used in conjunction with, and described the second photo-sensitive cell 22, second camera 21 and the 2nd LED23 are used in conjunction with.
The one DA transducer 31, is connected to described the first photo-sensitive cell 12, and the analog electrical signal of its output is converted to digital signal; The 2nd DA transducer 32, is connected to described the second photo-sensitive cell 22, and the analog electrical signal of its output is converted to digital signal.
Image processing module 41, receives the picture signal that described the first camera 11 and second camera 21 are exported, and is converted into digital signal; Light-adjusting module 42, receives the digital signal that a described DA transducer 31 and the 2nd DA transducer 32 are exported, according to the tables of data output dim signal prestoring.
The first dim signal is couple to the first power transformation circuit 50, and control the first power transformation circuit 50 outputs to the current value of a LED13; When the sensitization weak strength that the first photo-sensitive cell 12 is exported, a LED carries out light filling operation to reference object.
The second dim signal is couple to the second power transformation circuit 60, and control the second power transformation circuit 60 outputs to the current value of the 2nd LED23; When the sensitization weak strength that the second photo-sensitive cell 22 is exported, the 2nd LED23 carries out light filling operation to reference object.
As shown in Figure 2, the first power transformation circuit 50 comprises: transformer 51, comprise former limit winding and secondary winding, former limit winding comprises first end and the second end, secondary winding comprises first end and the second end, former limit winding first end is connected to storage battery as input, and secondary winding the second end is connected to secondary earth potential, and former limit winding first end and secondary winding the second end are Same Name of Ends; The first switching tube 52, its source electrode is connected to transformer primary side winding the second end, and its drain electrode is connected to former limit earth potential, and its grid is connected to the first switch driver 53; The first switch driver 53, comprise the first transistor and transistor seconds, the first transistor is NPN transistor, transistor seconds is PNP transistor, the base stage of the first transistor and transistor seconds links together as control end, the emitter of the first transistor and transistor seconds links together as output, and the collector electrode of the first transistor is connected to power supply, and the collector electrode of transistor seconds is connected to former limit earth potential; The first diode 54, its anodic bonding is to transformer secondary winding first end, and its negative electrode is connected to the first inductor 55; The common port of the first inductor 55 and the first capacitor 56 is as output, and the other end of the first capacitor 56 is connected to secondary earth potential.
Described light-adjusting module 42 is exported the control end of the first dim signal to the first switch driver 53, the turn-on and turn-off of control switch pipe, and then control the electric current that outputs to a LED.
As shown in Figure 3, the second power transformation circuit 60 comprises: the second inductor 61, and its one end is connected to power supply; Second switch pipe 62 and the 3rd switching tube 63, the source electrode of second switch pipe 62 and the 3rd switching tube 63 links together and is connected to the other end of the second inductor 61, the drain electrode of second switch pipe 62 is connected to secondary earth potential, the other end that the drain electrode of the 3rd switching tube 63 is connected to output and the second capacitor 65, the second capacitors 65 is connected to secondary earth potential; Second switch driver 64, it is the UC3714 of Texas Instruments chip, clock signal based on control end input produces the switching drive signal of two-way complementation, and a road is coupled to described second switch pipe 62 grids, and another road is coupled to described the 3rd switching tube 63 grids.
Described light-adjusting module 42 outputs a control signal to the control end of second switch driver 64, the turn-on and turn-off of control switch pipe, and then control the electric current that outputs to the 2nd LED.
Above-mentioned image processing module 41, light-adjusting module 42 can adopt discrete structure to realize, and select 2 chip blocks, and realize image synthetic function by the circuit of taking outward; Image processing module 41, light-adjusting module 42 also can adopt integrated structure to realize, and realize image processing module 41, light-adjusting module 42 by the internal processes of DSP circuit.
Preferably, described dsp chip is TMS320DM642 chip.
TMS320DM642 is up-to-date fixed DSP in the C6000 of TI company series DSP, its core is C6416 type high-performance digital signal processor, there is extremely strong handling property, flexibility and the programmability of height, equipment and the interfaces such as simultaneously peripheral integrated very complete audio frequency, video and network service.
TMS320DM642 chip comprises: 3 configurable video ports (VPORT0-2) can be realized seamless link with general video coding and decoding device, support various video resolution and video standard, support RAW video input/output, transport stream mode; 1 10/100Mb/s Ethernet interface (EMAC), meets IEEE802.3 standard; 1 multichannel band buffered audio serial port (McASP), supports I2S, DIT, S/PDIF, IEC60958-1, the audio formats such as AES-3, CP-430; 2 multichannel band buffering serial ports (McBSP), adopt RS232 level to drive; 1 VCXO interpolation control unit (VIC), supports that audio/video is synchronous; 1 32,66M hertz, the master/slave pci interface of 3.3V, follow PCI2.2 specification; 1 configurable 16/32 host interface of user (HPI); 1 16 general input/output port (GPIO); 1 64 external memory interfaces (EMIF), can with most of asynchronous memories (SRAM, EPROM) and synchronous memories (SDRAM, SBSRAM, ZBTSRAM, FIFO) seamless link, maximum addressable external memory storage space is 1024MB; 1 has the enhancement mode direct memory access controller (EDMA) of 64 autonomous channels, tunnel; 1 data management input/output module (MDIO); 1 I2C bus module; 3 32 general purpose timers; 1 meets jtag interface and the daughter board interface etc. of IEEE1149.1 standard.
The present invention is used in conjunction with by the photo-sensitive cell and camera, the LED that are arranged on an other side, and the photo-sensitive cell control LED arranging by opposite side carries out light filling operation to reference object, and the color and luster of photographic images is optimized.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (1)
1. a dual camera camera arrangement, it is characterized in that, comprise: the first taking module and the second taking module, described the first taking module comprises the first camera, a LED who is arranged on mobile phone front and the first photo-sensitive cell that is arranged on the mobile phone back side, and described the second taking module comprises second camera, the 2nd LED that is arranged on the mobile phone back side and the second photo-sensitive cell that is arranged on mobile phone front; Described the first photo-sensitive cell, the first camera and a LED are used in conjunction with, and described the second photo-sensitive cell, second camera and the 2nd LED are used in conjunction with;
The one DA transducer, is connected to described the first photo-sensitive cell, and the analog electrical signal of its output is converted to digital signal;
The 2nd DA transducer, is connected to described the second photo-sensitive cell, and the analog electrical signal of its output is converted to digital signal;
Image processing module, receives the picture signal that described the first camera and second camera are exported, and is converted into digital signal;
Light-adjusting module, receives the digital signal that a described DA transducer and the 2nd DA transducer are exported, according to the tables of data output dim signal prestoring;
The first dim signal is couple to the first power transformation circuit, and control the first power transformation circuit outputs to the current value of a LED;
The second dim signal is couple to the second power transformation circuit, and control the second power transformation circuit outputs to the current value of the 2nd LED;
Described the first power transformation circuit comprises:
Transformer, comprise former limit winding and secondary winding, former limit winding comprises first end and the second end, secondary winding comprises first end and the second end, former limit winding first end is connected to described storage battery, secondary winding the second end is connected to secondary earth potential, and former limit winding first end and secondary winding the second end are Same Name of Ends;
The first switching tube, its source electrode is connected to transformer primary side winding the second end, and its drain electrode is connected to former limit earth potential, and its grid is connected to the first switch driver;
The first switch driver, comprise the first transistor and transistor seconds, the first transistor is NPN transistor, transistor seconds is PNP transistor, the base stage of the first transistor and transistor seconds links together as control end, and control end receives the first dim signal of described light-adjusting module output, and the emitter of the first transistor and transistor seconds links together as output, the collector electrode of the first transistor is connected to storage battery, and the collector electrode of transistor seconds is connected to former limit earth potential;
The first diode, its anodic bonding is to transformer secondary winding first end, and its negative electrode is connected to the first inductor;
The common port of the first inductor and the first capacitor is as output, and the other end of the first capacitor is connected to secondary earth potential;
Described the second power transformation circuit comprises:
The second inductor, its one end is connected to described power supply;
Second switch pipe and the 3rd switching tube, the source electrode of second switch pipe and the 3rd switching tube links together and is connected to the other end of the second inductor, the drain electrode of second switch pipe is connected to secondary earth potential, the drain electrode of the 3rd switching tube is connected to the second capacitor, and the other end of the second capacitor is connected to secondary earth potential;
Second switch driver, it is the UC3714 of Texas Instruments chip, clock signal based on control end input produces the switching drive signal of two-way complementation, one tunnel is coupled to described second switch tube grid, another road is coupled to described the 3rd switching tube grid, and its control end is connected to described the second dim signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410407216.XA CN104159012A (en) | 2014-08-19 | 2014-08-19 | Dual-camera photo device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410407216.XA CN104159012A (en) | 2014-08-19 | 2014-08-19 | Dual-camera photo device |
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| CN104159012A true CN104159012A (en) | 2014-11-19 |
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| CN201410407216.XA Pending CN104159012A (en) | 2014-08-19 | 2014-08-19 | Dual-camera photo device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104243836A (en) * | 2014-08-27 | 2014-12-24 | 青岛蓝图文化传播有限公司市南分公司 | Double-camera control method of camera shooting device |
| CN112672136A (en) * | 2020-12-24 | 2021-04-16 | 维沃移动通信有限公司 | Camera module and electronic equipment |
| CN113259506A (en) * | 2020-02-10 | 2021-08-13 | 北京小米移动软件有限公司 | Electronic equipment, light sensing control method and device |
-
2014
- 2014-08-19 CN CN201410407216.XA patent/CN104159012A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104243836A (en) * | 2014-08-27 | 2014-12-24 | 青岛蓝图文化传播有限公司市南分公司 | Double-camera control method of camera shooting device |
| CN113259506A (en) * | 2020-02-10 | 2021-08-13 | 北京小米移动软件有限公司 | Electronic equipment, light sensing control method and device |
| CN112672136A (en) * | 2020-12-24 | 2021-04-16 | 维沃移动通信有限公司 | Camera module and electronic equipment |
| CN112672136B (en) * | 2020-12-24 | 2023-03-14 | 维沃移动通信有限公司 | Camera module and electronic equipment |
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Application publication date: 20141119 |