CN206363067U - A kind of projecting apparatus automatic focusing device with camera - Google Patents
A kind of projecting apparatus automatic focusing device with camera Download PDFInfo
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- CN206363067U CN206363067U CN201621432300.8U CN201621432300U CN206363067U CN 206363067 U CN206363067 U CN 206363067U CN 201621432300 U CN201621432300 U CN 201621432300U CN 206363067 U CN206363067 U CN 206363067U
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- projecting apparatus
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- output end
- camera
- automatic focusing
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Abstract
The utility model discloses a kind of projecting apparatus automatic focusing device with camera.The utility model catches the picture signal that projecting apparatus is launched using camera, and projector focal length is adjusted according to picture signal, on the one hand the problem of manual focusing is inconvenient in the prior art is overcome, on the other hand the problem of automatic focusing in the prior art can not meet multi-angle projection, stability is poor is overcome, realize a kind of easy to use, projecting apparatus automatic focusing device that focusing reliability is high, and it is simple in construction, with good economic and social benefit.The utility model can be widely applied to various projecting apparatus autofocus systems.
Description
Technical field
The utility model is related to projector focal length regulation technology field, more particularly to a kind of projecting apparatus automatic focusing device.
Background technology
Projecting apparatus focusing mode in the market is mainly manually and automatically two kinds.On the one hand, because projecting apparatus is used
Characteristic, when its position is changed, just have to adjust a posterior focal distance, this manual focus is clearly very troublesome；It is another
Aspect, current projecting apparatus Autofocus Technology is, by measuring the distance between projector and projection screen, to come further according to distance
Realize autozoom, but it is this easily there is error, especially when need carry out multi-angle projection when, the measurement of distance with
The corresponding relation of focal length changes, and is easily caused automatic focusing and is forbidden.Both the above focusing mode can not meet client couple
Portability that projecting apparatus is used, the diversity of occupation mode（As multi-angle projects demand）With the demand of the reliability of focusing.
Utility model content
In order to solve the above-mentioned technical problem, the purpose of this utility model is to provide a kind of high using portable, focusing reliability
Projecting apparatus automatic focusing device.
The technical scheme that the utility model is used is：
A kind of projecting apparatus automatic focusing device with camera, including projection lens, camera, focusing process device and step
Stepper motor, the camera is used to catch the projected picture that projection lens is launched, the output end and focusing process of the camera
The input connection of device；The output end of the focusing process device and the input of stepper motor are connected；The stepper motor it is defeated
Go out end to be connected with the input of projection lens.
It is preferred that, in addition to photoelectric sensor, the photoelectric sensor is arranged on below stepper motor, for sensing stepping
The angle and direction that motor is rotated, the output end of photoelectric sensor is connected with the input of focusing process device.
It is preferred that, in addition to projector's main control module and ray machine, the output end of projector's main control module with focusing
The input connection of device is managed, the ray machine includes image processing module and projection lens, the output of projector's main control module
End is connected with the input of image processing module, and the output end of described image processing module and the input of projection lens are connected.
It is preferred that, in addition to gyroscope, the output end of the gyroscope is connected with the input of projector's main control module.
It is preferred that, the gyroscope is six axle gyroscopes.
It is preferred that, in addition to remote control reception head, the output end of the remote control reception head and the input of projector's main control module
End connection.
It is preferred that, the remote control reception head is that infrared remote control receives head or Bluetooth remote control receives head.
It is preferred that, the focusing process device is DSP Processor.
The beneficial effects of the utility model are：
The utility model catches the picture signal that projecting apparatus is launched using camera, and adjusts projecting apparatus according to picture signal
Focal length, on the one hand overcomes the problem of manual focusing is inconvenient in the prior art, on the other hand overcomes automatic in the prior art
The problem of focusing can not meet multi-angle projection, stability is poor, realize a kind of easy to use, projecting apparatus that focusing reliability is high from
Dynamic focus control, and it is simple in construction, with good economic and social benefit.
In addition, the utility model is integrated with high-precision six axles gyro, it can be determined that whether the position for going out projecting apparatus is moved
Move, then trigger automatic focusing function.The utility model also realizes compatible manual focus by using remote control reception head, passes through
Remote control controls the rotation of stepper motor, so as to drive the flexible of camera lens to realize focusing so that the function of product is more
Hommization.Utilize the rotation direction and angle of photoelectric sensor automatic identification focus lens so that auto-focusing is faster more accurate.
The utility model can be widely applied to various projecting apparatus autofocus systems.
Brief description of the drawings
Embodiment of the present utility model is described further below in conjunction with the accompanying drawings：
Fig. 1 is a kind of circuit structure block diagram of embodiment of the utility model；
Fig. 2 is a kind of device for mechanical structural representation of embodiment of the utility model.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.
The utility model basic conception is：Camera is caught foot and thrown to projecting apparatus projection screen carriers such as (or) wall, ceilings
On picture signal, focusing process device will handle the picture signal that camera is sent, picture is analyzed by image processing algorithm
Whether face is clear, then goes the rotation of Driving Stepping Motor to drive the flexible of camera lens to realize focusing.Wherein, focus operation can
Be by start triggering or by projector change in displacement trigger.
As depicted in figs. 1 and 2, a kind of projecting apparatus automatic focusing device with camera, including projection lens, shooting
Head, focusing process device and stepper motor, camera are used to catching the projected picture that projection lens is launched, the output end of camera with
The input connection of focusing process device；The output end of focusing process device and the input of stepper motor are connected；Stepper motor it is defeated
Go out end to be connected with the input of projection lens.In the present embodiment, focusing process device is realized using DSP Processor so that product
Can more it stablize, the construction cycle is short, cost is low.Device also includes projector's main control module and ray machine, projector's main control module
Output end is connected with the input of focusing process device, and image processing module and projection lens are arranged in ray machine, projector's master control
The output end of module and the input of image processing module are connected, the output end of image processing module and the input of projection lens
Connection.The vision signal of projector's main control module output is projected from projection lens and exported after image processing module is handled.Throw
Shadow machine main control module exports startup trigger signal and gives focusing process device, triggering auto-focusing action.
The utility model catches the picture signal that projecting apparatus is launched using camera, and adjusts projecting apparatus according to picture signal
Focal length, on the one hand overcomes the problem of manual focusing is inconvenient in the prior art, on the other hand overcomes automatic in the prior art
The problem of focusing can not meet multi-angle projection, stability is poor.
In the present embodiment, device also includes photoelectric sensor, and photoelectric sensor is arranged on below stepper motor, for sensing
The angle and direction that stepper motor is rotated, the output end of photoelectric sensor is connected with the input of focusing process device.Optoelectronic induction
The rotation direction and angle of device automatic identification focus lens, focusing process device can be adjusted according to the rotation direction and angle of focus lens
Synchronizing stepper motor is rotated so that auto-focusing is faster more accurate.
In the present embodiment, in addition in the present embodiment, in addition to gyroscope, output end and the projector's master control mould of gyroscope
The input connection of block.High-precision six axles gyroscope is integrated with device, it can be determined that whether the position for going out projecting apparatus is moved
Move, then triggering starts auto-focusing action.The action of the present embodiment automatic focusing can be start triggering or displacement
Change triggers.
In the present embodiment, in addition to remote control reception head, the output end of remote control reception head and the input of projector's main control module
End connection.The utility model device compatibility manual focus, can control the rotation of stepper motor, so as to drive by remote control
The flexible of camera lens realizes focusing so that the function of product more hommization.Wherein, remote control reception head can be infrared receiving terminal
Or Bluetooth receptions are first-class.
The utility model catches the picture signal that projecting apparatus is launched using camera, and adjusts projecting apparatus according to picture signal
Focal length, on the one hand overcomes the problem of manual focusing is inconvenient in the prior art, on the other hand overcomes automatic in the prior art
The problem of focusing can not meet multi-angle projection, stability is poor, realize a kind of easy to use, projecting apparatus that focusing reliability is high from
Dynamic focus control, and it is simple in construction, with good economic and social benefit.The utility model can be widely applied to various throwings
Shadow instrument autofocus system.
Above is preferable implementation of the present utility model is illustrated, but the invention is not limited to the reality
Example is applied, those skilled in the art can also make a variety of equivalent variations on the premise of without prejudice to the utility model spirit
Or replace, these equivalent deformations or replacement are all contained in the application claim limited range.
Claims (8)
1. a kind of projecting apparatus automatic focusing device with camera, it is characterised in that including projection lens, camera, focusing
Processor and stepper motor,
The camera is used to catch the projected picture that projection lens is launched, output end and the focusing process device of the camera
Input is connected；
The output end of the focusing process device and the input of stepper motor are connected；
The output end of the stepper motor and the input of projection lens are connected.
2. a kind of projecting apparatus automatic focusing device with camera according to claim 1, it is characterised in that also include
Photoelectric sensor, the photoelectric sensor is arranged on below stepper motor, the angle and direction for sensing stepper motor rotation,
The output end of photoelectric sensor is connected with the input of focusing process device.
3. a kind of projecting apparatus automatic focusing device with camera according to claim 1 or 2, it is characterised in that also
Including projector's main control module and ray machine, the output end of projector's main control module is connected with the input of focusing process device,
The ray machine includes image processing module and projection lens, the output end of projector's main control module and image processing module
Input is connected, and the output end of described image processing module and the input of projection lens are connected.
4. a kind of projecting apparatus automatic focusing device with camera according to claim 3, it is characterised in that also include
Gyroscope, the output end of the gyroscope is connected with the input of projector's main control module.
5. a kind of projecting apparatus automatic focusing device with camera according to claim 4, it is characterised in that the top
Spiral shell instrument is six axle gyroscopes.
6. a kind of projecting apparatus automatic focusing device with camera according to claim 3, it is characterised in that also include
Remote control reception head, the output end of the remote control reception head is connected with the input of projector's main control module.
7. a kind of projecting apparatus automatic focusing device with camera according to claim 6, it is characterised in that described distant
It is that infrared remote control receives head or Bluetooth remote control receives head that control, which receives head,.
8. a kind of projecting apparatus automatic focusing device with camera according to claim 1,2,4,5,6 or 7, its feature
It is, the focusing process device is DSP Processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621432300.8U CN206363067U (en) | 2016-12-23 | 2016-12-23 | A kind of projecting apparatus automatic focusing device with camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621432300.8U CN206363067U (en) | 2016-12-23 | 2016-12-23 | A kind of projecting apparatus automatic focusing device with camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206363067U true CN206363067U (en) | 2017-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621432300.8U Active CN206363067U (en) | 2016-12-23 | 2016-12-23 | A kind of projecting apparatus automatic focusing device with camera |
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| Country | Link |
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| CN (1) | CN206363067U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108961855A (en) * | 2018-05-04 | 2018-12-07 | 早上六点（北京）教育科技有限公司 | A kind of portable early education equipment and its application method |
-
2016
- 2016-12-23 CN CN201621432300.8U patent/CN206363067U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108961855A (en) * | 2018-05-04 | 2018-12-07 | 早上六点（北京）教育科技有限公司 | A kind of portable early education equipment and its application method |
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