CN206820829U - A kind of cell-phone camera head controlling device - Google Patents
A kind of cell-phone camera head controlling device Download PDFInfo
- Publication number
- CN206820829U CN206820829U CN201720570802.5U CN201720570802U CN206820829U CN 206820829 U CN206820829 U CN 206820829U CN 201720570802 U CN201720570802 U CN 201720570802U CN 206820829 U CN206820829 U CN 206820829U
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- China
- Prior art keywords
- amplifier
- light
- sensitive element
- source
- compensating lamp
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Abstract
The utility model embodiment provides a kind of cell-phone camera head controlling device, including：First power supply, light-sensitive element, the first amplifier, second source, the second amplifier, light compensating lamp and resistance, it is characterised in that the negative pole ground connection of first power supply, the positive pole of first power supply are connected with one end of the light-sensitive element；The light-sensitive element is arranged on the mobile phone back side, and receives ambient light photograph, and the resistance of the light-sensitive element increases with the increase of illumination, and the other end of the light-sensitive element is connected with the base stage of the first amplifier；The colelctor electrode of first amplifier is connected with the positive pole of the second source, and the emitter stage of first amplifier is connected with the base stage of second amplifier；The colelctor electrode of second amplifier is connected by resistance with the second source, the grounded emitter of second amplifier；Light compensating lamp is also associated between the collector and emitter of second amplifier；The negative pole ground connection of the second source；Using the utility model embodiment, the brightness of mobile phone light compensating lamp can be adjusted.
Description
Technical field
Mobile phone control technical field is the utility model is related to, more particularly to a kind of cell-phone camera head controlling device.
Background technology
As the development of smart mobile phone technology, smart mobile phone are easy to carry to be widely used because its is powerful.
Under normal circumstances, smart mobile phone all has camera function, and therefore, taking photograph of intelligent mobile phone is commonly used in people.But some intelligence
Mobile phone is taken pictures ineffective in the case where light is bad, therefore, it is necessary to light filling is carried out when taking pictures.
At present, light filling is generally carried out in mobile phone photograph with light compensating lamp.When user uses mobile phone photograph, in mobile phone
While shutter starts, light compensating lamp lights, and plays light filling effect.
But in the prior art, the brightness of light compensating lamp is uncontrollable, if during dark when taking pictures, mended
The brightness of light lamp not enough may can cause light filling effect bad；The external light source waited when taking can also provide a part of light
During line, the brightness of light compensating lamp may be excessively bright for photo, causes photo lithography excessive, therefore prior art has light compensating lamp
The uncontrollable technical problem of brightness.
Utility model content
The purpose of the utility model embodiment is to provide a kind of cell-phone camera head controlling device, to realize regulation light compensating lamp
The purpose of brightness.Concrete technical scheme is as follows：
To reach above-mentioned purpose, the utility model embodiment provides a kind of cell-phone camera head controlling device, including：First
Power supply, light-sensitive element, the first amplifier, second source, the second amplifier, light compensating lamp and resistance, it is characterised in that described
The negative pole ground connection of one power supply, the positive pole of first power supply are connected with one end of the light-sensitive element；The light-sensitive element is set
At the mobile phone back side, and ambient light photograph is received, the resistance of the light-sensitive element increases with the increase of illumination, the light-sensitive element
The other end be connected with the base stage of the first amplifier；The colelctor electrode of first amplifier connects with the positive pole of the second source
Connect, the emitter stage of first amplifier is connected with the base stage of second amplifier；The colelctor electrode of second amplifier leads to
Cross resistance to be connected with the second source, the grounded emitter of second amplifier；The colelctor electrode of second amplifier and
Light compensating lamp is also associated between emitter stage；The negative pole ground connection of the second source.
Optionally, the amplifying power of second amplifier is higher than the amplifying power of first amplifier.
Optionally, the voltage of first power supply is the half of second source voltage.
Optionally, the light compensating lamp is LED light supplement lamp or xenon light compensating lamp.
Optionally, the position of the light compensating lamp of the mobile phone is additionally provided with snoot.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of electrical block diagram for cell-phone camera head controlling device that the utility model embodiment provides.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
To solve prior art problem, the utility model embodiment provides a kind of cell-phone camera head controlling device, including：
First power supply A1, light-sensitive element R1, the first amplifier B1, second source A2, the second amplifier B2, light compensating lamp C1 and resistance
R2, it is characterised in that the negative pole ground connection of the first power supply A1, the positive pole of the first power supply A1 is with the light-sensitive element R1's
One end connects；The light-sensitive element R1 is arranged on the mobile phone back side, and receives ambient light photograph, and the resistance of the light-sensitive element is with light
According to increase and increase, the other end of the light-sensitive element R1 is connected with the first amplifier B1 base stage；First amplifier
B1 colelctor electrode is connected with the positive pole of the second source A2, emitter stage and second amplifier of the first amplifier B1
B2 base stage connection；The colelctor electrode of the second amplifier B2 is connected by resistance R2 with the second source A2, and described second
Amplifier B2 grounded emitter；Light compensating lamp C1 is also associated between the collector and emitter of the second amplifier B2；Institute
State second source A2 negative pole ground connection.
When the utility model embodiment works, because light-sensitive element R1 resistance increases with the increase of illumination, that
Light-sensitive element R1 resistance reduces with the reduction of illumination, i.e. light-sensitive element R1 receive the external world light application ratio it is smaller when,
Light-sensitive element R1 resistance reduces, and the first power supply A1 is output to the first amplifier B1 electric current increase, and the first amplifier B1 will be defeated
The Current amplifier that enters simultaneously is output to the second amplifier B2 input, and the Current amplifier is output to light filling by the second amplifier B2
The electric current that lamp C1, light compensating lamp C1 are received be more than before electric current, the brightness of light compensating lamp improves.
In actual applications, when the illumination that light-sensitive element R1 is received is stronger, the first power supply A1 is output to the first amplifier
B1 electric current is fainter, causes light compensating lamp C1 electric current smaller, and the light that light compensating lamp C1 is sent is fainter, or even due to electricity
Flow through small without luminous.
In actual applications, the photo resistance that light-sensitive element reduces for resistance with the increase of intensity of illumination.
Photo resistance can be arranged in phone housing, can be connect by being arranged on the optical window on phone housing surface
The irradiation of extraneous light is received, so that the resistance of itself changes.
Optionally, in a kind of embodiment of the utility model embodiment, the amplification of the second amplifier B2
Power is higher than the amplifying power of the first amplifier B1.
In actual applications, the second amplifier B2 amplifying power is the 2 to 10 of the first amplifier B1 amplifying powers
Times.
Optionally, in a kind of embodiment of the utility model embodiment, the voltage of the first power supply A1 is
The half of second source A2 voltages.
Under normal circumstances, the first power supply A1 voltage is that 3.7V is optional, specific in one kind of the utility model embodiment
In embodiment, the light compensating lamp C1 is LED light supplement lamp or xenon light compensating lamp.
Under normal circumstances, when the utility model embodiment is applied on mobile phone, light compensating lamp C1 is LED light supplement lamp；When by originally
Utility model embodiment is applied in other equipment, during as on large-scale picture pick-up device, can use xenon light compensating lamp.
Optionally, in a kind of embodiment of the utility model embodiment, the light compensating lamp C1 of mobile phone position
Put and be additionally provided with snoot.
In actual applications, the light that can launch light compensating lamp C1 using snoot is more assembled, and light compensating lamp is launched
Light project farther distance, further increase the light filling effect of light compensating lamp.
Using the utility model embodiment illustrated in fig. 1, light-sensitive element can change first and put with the change of ambient light photograph
The input current of big device, so as to cause the change of the input current of the second amplifier, so as to change the size of current of light compensating lamp,
So as to have adjusted the brightness of mobile phone light compensating lamp.
Preferred embodiment of the present utility model is the foregoing is only, is not intended to limit protection model of the present utility model
Enclose.All made within spirit of the present utility model and principle any modification, equivalent substitution and improvements etc., are all contained in this reality
With in new protection domain.
Claims (5)
1. a kind of cell-phone camera head controlling device, including：First power supply, light-sensitive element, the first amplifier, second source, second
Amplifier, light compensating lamp and resistance, it is characterised in that first power supply negative pole ground connection, the positive pole of first power supply with
One end connection of the light-sensitive element；The light-sensitive element is arranged on the mobile phone back side, and receives ambient light photograph, the light-sensitive element
Resistance increase with the increase of illumination, the other end of the light-sensitive element is connected with the base stage of the first amplifier；Described
The colelctor electrode of one amplifier is connected with the positive pole of the second source, the emitter stage of first amplifier and the described second amplification
The base stage connection of device；The colelctor electrode of second amplifier is connected by resistance with the second source, second amplifier
Grounded emitter；Light compensating lamp is also associated between the collector and emitter of second amplifier；The second source
Negative pole is grounded.
2. control device according to claim 1, it is characterised in that the amplifying power of second amplifier is higher than described
The amplifying power of first amplifier.
3. control device according to claim 1, it is characterised in that the voltage of first power supply is second source voltage
Half.
4. control device according to claim 1, it is characterised in that the light compensating lamp is that LED light supplement lamp or xenon are mended
Light lamp.
5. control device according to claim 1, it is characterised in that the position of the light compensating lamp of the mobile phone is additionally provided with optically focused
Cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720570802.5U CN206820829U (en) | 2017-05-22 | 2017-05-22 | A kind of cell-phone camera head controlling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720570802.5U CN206820829U (en) | 2017-05-22 | 2017-05-22 | A kind of cell-phone camera head controlling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206820829U true CN206820829U (en) | 2017-12-29 |
Family
ID=60757041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720570802.5U Expired - Fee Related CN206820829U (en) | 2017-05-22 | 2017-05-22 | A kind of cell-phone camera head controlling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206820829U (en) |
-
2017
- 2017-05-22 CN CN201720570802.5U patent/CN206820829U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171229 Termination date: 20200522 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |