CN105554404A - Light-sensation-controlled aperture variation control method - Google Patents
Light-sensation-controlled aperture variation control method Download PDFInfo
- Publication number
- CN105554404A CN105554404A CN201610117036.7A CN201610117036A CN105554404A CN 105554404 A CN105554404 A CN 105554404A CN 201610117036 A CN201610117036 A CN 201610117036A CN 105554404 A CN105554404 A CN 105554404A
- Authority
- CN
- China
- Prior art keywords
- aperture
- chip microcomputer
- control method
- light
- controls
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/67—Focus control based on electronic image sensor signals
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B9/00—Exposure-making shutters; Diaphragms
- G03B9/02—Diaphragms
Abstract
The invention provides a light-sensation-controlled aperture variation control method. The method comprises the following steps that 1, a single-chip microcomputer collects a video camera aperture control output signal and the entry value of a light-sensitive element CDS; 2, the single-chip microcomputer controls a motor drive to work through an aperture DC motor, then the size of an aperture is driven through the aperture DC motor, and at the same time, the single-chip microcomputer obtains the current position of the aperture through a focus variation encoder and an aperture encoder. The method is applicable to a long-focus high-magnification electric lens. By means of the method, the DC aperture without a damping coil can obtain a balance point through cooperation between a video camera and a light-sensitive element, and the method has the advantages of being low in development cost and high in response speed. The unique control method is adopted, so that the electric lens is higher in control response speed and efficiency.
Description
Technical field
The present invention relates to a kind of motor-driven lens, more specifically refer to that a kind of light sensation controls aperture variation control method.
Background technology
The aperture that large multiplying power motor-driven lens uses in the market is roughly divided into 2 kinds: 1. the DC aperture being with damping coil; 2. the DC aperture not with damping coil.For the DC aperture of band damping coil, can directly by the integral feedback control circui of video camera, through repeatedly shaking acquisition balance point, speed is slower; For the DC aperture not with damping coil, what major part adopted is external voltage manual control, automatically cannot be driven obtain balance by camera aperture interface.
Summary of the invention
Invention provides a kind of light sensation and controls aperture variation control method, and the present invention is used for the powerful motor-driven lens of long-focus.The present invention can be made the DC aperture not with damping coil be coordinated with light-sensitive element by video camera and obtain balance point, has development cost and reduces and response speed feature faster.
The technical solution used in the present invention is: a kind of light sensation controls aperture variation control method, it is characterized in that: it comprises the following steps, and step one, single-chip microcomputer are outputed signal by acquisition camera the control of diaphragm and the entry values of light-sensitive element CDS; Step 2, Single-chip Controlling motor are driven through aperture DC machine operation, and then drive aperture size by aperture DC motor, and meanwhile, single-chip microcomputer obtains aperture position now by zoom encoder, aperture encoder.
Camera aperture controls output signal by after delay circuit process, enters to single-chip microcomputer process by amplifier follow circuit.
The entry values of light sensor CDS enters to single-chip microcomputer process by amplifier follow circuit.
The data that zoom encoder, aperture encoder obtain enter single-chip microcomputer process by amplifier follow circuit.
The entry values of CDS be from EV machine obtain by dark to the bright magnitude of voltage that 18 brightness degrees are corresponding altogether.
Described single-chip microcomputer stores the control of diaphragm program.
This control of diaphragm program comprises the following steps, step one, judge whether current burnt section is short Jiao by the control of diaphragm program, if otherwise enter middle focal length the control of diaphragm program, if it is judge that CDS brightness change is within two grades, if it is get back to and judge that whether current burnt section is the program point of short Jiao, step 2, if the brightness of CDS is not within two grades, then gathered by camera driver signal DRV+ voltage swing, and judge whether the data gathered are greater than DRV+/2, if it is drive aperture to open, if otherwise drive aperture to close.
Beneficial effect of the present invention is: the present invention is used for the powerful motor-driven lens of long-focus.The present invention can be made the DC aperture not with damping coil be coordinated with light-sensitive element by video camera and obtain balance point, has development cost and reduces and response speed feature faster.
The present invention, by unique control method, makes that the control of motor-driven lens is swift in response, efficiency is higher.
Accompanying drawing explanation
fig. 1 is structure block diagram of the present invention.
Embodiment
Be illustrated in figure 1 one of the present invention preferably specific embodiment, a kind of light sensation controls aperture variation control method, and it comprises the following steps,
Step one, single-chip microcomputer 10 output signal the entry values of 20 and light-sensitive element CDS30 by acquisition camera the control of diaphragm;
Step 2, single-chip microcomputer 10 are controlled motor and drive 40 to be worked by aperture DC motor 50, and then drive aperture 60 size by aperture DC motor 50, and meanwhile, single-chip microcomputer 10 obtains aperture 60 position now by zoom encoder 70, aperture encoder 80;
Further, camera aperture controls output signal 20 by after delay circuit 90 process, enters to single-chip microcomputer 10 process by amplifier follow circuit 100.
The entry values of light sensor CDS enters to single-chip microcomputer 10 by amplifier follow circuit 100 and processes;
The data that zoom encoder 70, aperture encoder 80 obtain enter single-chip microcomputer 10 by amplifier follow circuit 100 and process;
The entry values of CDS be from EV machine obtain by dark to the bright magnitude of voltage that 18 brightness degrees are corresponding altogether.
Described single-chip microcomputer 10 stores the control of diaphragm program,
This control of diaphragm program comprises the following steps, step one, judge whether current burnt section is short Jiao by the control of diaphragm program, if otherwise enter middle focal length the control of diaphragm program, if it is judge that CDS brightness change is within two grades, if it is get back to and judge that whether current burnt section is the program point of short Jiao
Step 2, if the brightness of CDS is not within two grades, is then gathered by camera driver signal DRV+ voltage swing, and judges whether the data gathered are greater than DRV+/2, if it is drives aperture to open, if otherwise drive aperture to close.
Embodiments of the invention and accompanying drawing are just in order to show design concept of the present invention, and protection scope of the present invention should not be confined to this embodiment.
By above describe can find out that purpose of design of the present invention can effectively be implemented.The portion shows of embodiment object of the present invention and implement function and structure theme, and comprise other equivalent replacement.
Therefore, right of the present invention forms the equivalence comprising other and implements, concrete right range reference claim.
Claims (7)
1. light sensation controls an aperture variation control method, and it is characterized in that: it comprises the following steps, step one, single-chip microcomputer are outputed signal by acquisition camera the control of diaphragm and the entry values of light-sensitive element CDS; Step 2, Single-chip Controlling motor are driven through aperture DC machine operation, and then drive aperture size by aperture DC motor, and meanwhile, single-chip microcomputer obtains aperture position now by zoom encoder, aperture encoder.
2. a kind of light sensation as claimed in claim 1 controls aperture variation control method, it is characterized in that, camera aperture controls output signal by after delay circuit process, enters to single-chip microcomputer process by amplifier follow circuit.
3. a kind of light sensation as claimed in claim 2 controls aperture variation control method, and it is characterized in that, the entry values of light sensor CDS enters to single-chip microcomputer process by amplifier follow circuit.
4. a kind of light sensation as claimed in claim 3 controls aperture variation control method, and it is characterized in that, the data that zoom encoder, aperture encoder obtain enter single-chip microcomputer process by amplifier follow circuit.
5. a kind of light sensation as claimed in claim 4 controls aperture variation control method, it is characterized in that, the entry values of CDS be from EV machine obtain by dark to the bright magnitude of voltage that 18 brightness degrees are corresponding altogether.
6. a kind of light sensation as claimed in claim 1 controls aperture variation control method, and it is characterized in that, described single-chip microcomputer stores the control of diaphragm program.
7. a kind of light sensation as claimed in claim 6 controls aperture variation control method, it is characterized in that, this the control of diaphragm program comprises the following steps, step one, judge whether current burnt section is short Jiao by the control of diaphragm program, if otherwise enter middle focal length the control of diaphragm program, if it is judge that CDS brightness change is within two grades, if it is get back to and judge that whether current burnt section is the program point of short Jiao, step 2, if the brightness of CDS is not within two grades, then gathered by camera driver signal DRV+ voltage swing, and judge whether the data gathered are greater than DRV+/2, if it is aperture is driven to open, if otherwise drive aperture to close.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610117036.7A CN105554404A (en) | 2016-03-02 | 2016-03-02 | Light-sensation-controlled aperture variation control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610117036.7A CN105554404A (en) | 2016-03-02 | 2016-03-02 | Light-sensation-controlled aperture variation control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105554404A true CN105554404A (en) | 2016-05-04 |
Family
ID=55833322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610117036.7A Pending CN105554404A (en) | 2016-03-02 | 2016-03-02 | Light-sensation-controlled aperture variation control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105554404A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108055471A (en) * | 2017-11-16 | 2018-05-18 | 深圳市维海德技术股份有限公司 | A kind of iris correction method and device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004015653A (en) * | 2002-06-10 | 2004-01-15 | Sony Corp | Digital still camera device, video camera device and information terminal device |
| JP2011085871A (en) * | 2009-10-19 | 2011-04-28 | Canon Inc | Imaging apparatus |
| CN102572287A (en) * | 2012-02-01 | 2012-07-11 | 迅驰（北京）视讯科技有限公司 | Camera auto iris control method and device |
| CN104243835A (en) * | 2013-06-19 | 2014-12-24 | 华为技术有限公司 | Automatic diaphragm control method and system |
| CN104394328A (en) * | 2014-11-27 | 2015-03-04 | 天津天地伟业数码科技有限公司 | Automatic diaphragm control method |
-
2016
- 2016-03-02 CN CN201610117036.7A patent/CN105554404A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004015653A (en) * | 2002-06-10 | 2004-01-15 | Sony Corp | Digital still camera device, video camera device and information terminal device |
| JP2011085871A (en) * | 2009-10-19 | 2011-04-28 | Canon Inc | Imaging apparatus |
| CN102572287A (en) * | 2012-02-01 | 2012-07-11 | 迅驰（北京）视讯科技有限公司 | Camera auto iris control method and device |
| CN104243835A (en) * | 2013-06-19 | 2014-12-24 | 华为技术有限公司 | Automatic diaphragm control method and system |
| CN104394328A (en) * | 2014-11-27 | 2015-03-04 | 天津天地伟业数码科技有限公司 | Automatic diaphragm control method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108055471A (en) * | 2017-11-16 | 2018-05-18 | 深圳市维海德技术股份有限公司 | A kind of iris correction method and device |
| CN108055471B (en) * | 2017-11-16 | 2020-05-15 | 深圳市维海德技术股份有限公司 | Aperture correction method and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103107476A (en) | Cable position adjusting mechanism | |
| CN103424958B (en) | Interchangeable lens, interchangeable lens control method, camera and camera control method | |
| CN106553162A (en) | The control device of motor | |
| CN102291539A (en) | Aperture control system and control method of camera | |
| CN105554404A (en) | Light-sensation-controlled aperture variation control method | |
| CN104219453B (en) | A kind of lens control method and terminal of camera module | |
| CN102611841B (en) | One-dimensional motion system of camera | |
| CN107040175A (en) | Voice coil motor starts control method and device, camera module | |
| CN208349155U (en) | A kind of motor control assembly of lamps and lanterns | |
| CN200979634Y (en) | A camera light filter power drive | |
| CN101605174A (en) | The method of a kind of portable terminal and realization vibration mode thereof | |
| CN105136428A (en) | Motorized zoom lens service life detection jig control circuit and method | |
| CN104113679A (en) | Automatic focusing design system, electronic device and automatic focusing design method | |
| CN105554402A (en) | Automatic lens focusing device and control method thereof | |
| CN204595477U (en) | A kind of pony support automatic laser welding controller | |
| CN205584595U (en) | Adopt intelligent stage control system of A variety of control mode | |
| CN209882160U (en) | Lighting system applied to multiple scenes | |
| CN204068798U (en) | A kind of closed-loop stepping motor servo drive system | |
| CN105487196A (en) | Drive control box for production line to check phase of zoom lens and control method thereof | |
| CN103089682A (en) | Controller for intermittent operation of exhaust fan | |
| CN204092999U (en) | Intelligent electric slide plate | |
| JP6432209B2 (en) | Lens barrel | |
| CN105589167A (en) | Voice coil motor controller and electronic apparatus | |
| CN103237159A (en) | Electronic control time-lapse photographic car and use method thereof | |
| CN108826163A (en) | A kind of motor control assembly of lamps and lanterns |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160504 |
|
| RJ01 | Rejection of invention patent application after publication |