CN206559543U - A kind of new projected image level correction device - Google Patents
A kind of new projected image level correction device Download PDFInfo
- Publication number
- CN206559543U CN206559543U CN201720236639.9U CN201720236639U CN206559543U CN 206559543 U CN206559543 U CN 206559543U CN 201720236639 U CN201720236639 U CN 201720236639U CN 206559543 U CN206559543 U CN 206559543U
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- China
- Prior art keywords
- projected image
- correction device
- level correction
- utility
- image level
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- 238000005516 engineering process Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000007306 turnover Effects 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000009881 electrostatic interaction Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Projection Apparatus (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
Abstract
The utility model discloses a kind of new projected image level correction device, it is characterised in that：It is provided with feeding embeded processor after CCD camera acquired projections picture in described means for correcting to be handled, embeded processor drives rotating stepper motor to drive the dmd chip on DLP circuit boards to rotate after judging the level angle of projected image by motor-drive circuit.Due to using above-mentioned structure, the utility model need not be calibrated regularly during use can just complete the function of rectification, and with the increase of use time, the precision of rectification will not also be affected.
Description
Technical field
The utility model is related to the technological improvement of projecting apparatus, more particularly to a kind of new projected image level correction dress
Put.
Background technology
As projecting apparatus is in the increasingly extensive use of various occasions, requirement of the people to projection quality also more and more higher.Throw
The undesirable of shadow quality is mainly reflected in two aspects：On the one hand it is that projected image can not accurately focus, so as to cause projection
It is image blurring, on the other hand it is that projected image is nonstandard, there is trapezoidal distortion and horizontal tilt.
Existing projecting apparatus is the detection that angle of inclination is carried out by the horizon sensor inside projecting apparatus mostly, then
Go to correct the deviation of projected image horizontal tilt by the method for software or hardware.But user needs to throwing in use
The horizon sensor of shadow instrument carries out periodic calibration.And projecting apparatus is in use, its internal temperature can be with use time
Increase and rise, and horizon sensor of the prior art can have " temperature drift " with the rising of temperature, sensor
Precision can substantially reduce, further influence can be produced on projecting apparatus on the correction of image.
In view of the above-mentioned problems, providing a kind of new level correction device, the level correction of projected image is realized automatically
Ensure correction accuracy simultaneously.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of new projected image level correction device,
Automatically correction accuracy is ensured while realizing the level correction of projected image.
To reach above-mentioned purpose, the technical solution of the utility model is, a kind of new projected image level correction device,
It is characterized in that：It is provided with described means for correcting after CCD camera acquired projections picture at feeding embeded processor
Reason, embeded processor drives rotating stepper motor to drive after judging the level angle of projected image by motor-drive circuit
Dmd chip on DLP circuit boards is rotated.
Described dmd chip projects projected picture by projection lens on curtain.
High bright light source direct irradiation dmd chip is provided with inside described projecting apparatus.
A kind of new projected image level correction device, due to using above-mentioned structure, the utility model is being used
During need not regularly be calibrated and can just complete the function of rectification, and with the increase of use time, water
The precision of flat correction will not also be affected.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and detailed description；
Fig. 1 is a kind of structured flowchart of new projected image level correction device of the utility model；
Fig. 2 is a kind of structural representation of new projected image level correction device of the utility model；
In Fig. 1-2,1, embeded processors；2nd, CCD camera；3rd, motor-drive circuit；4th, rotating stepper motor；
5th, high bright light source；6th, DLP circuit boards；7th, dmd chip；8th, projection lens；9th, projected picture.
Embodiment
The utility model realizes the automatic correction of projected image using DLP technologies.DLP is " Digital
LightProcessing " abbreviation, as digital light are handled, that is to say, that this technology will be first signal of video signal by numeral
Processing, then again projects light.Light source after colour wheel by reflecting on dmd chip, and dmd chip is receiving control panel
Light is transmitted on projection screen after control signal.Dmd chip outward appearance seems a simply small pieces mirror, is encapsulated in metal
In the confined space constituted with glass, in fact, this face mirror is made up of a hundreds thousand of or even up to a million micro mirror.DMD
Operation principle be exactly by micro-mirror device reflect need light, while absorbing unwanted light to realize shadow by light absorber
The projection of picture, and its direction of illumination is then, by electrostatic interaction, to pass through control micromirror angle to realize.Eyeglass can be one
Switch more than 1000 times in second, at this point, DLP turns into a simple optical system.The projecting apparatus of in the market is adopted extensively
Optical projection system is exactly the optical system that DLP is constituted：When DMD seat boards, projection lamp, projection lens cooperate, these
The minute surface stirred just can be reflected the image onto together on demonstration metope, motion picture screen or television screen.
Specifically as shown in Figure 1-2, embedded place is sent into after being provided with the acquired projections picture 9 of CCD camera 2 in the utility model
Reason device 1 is handled, and embeded processor 1, which judges to drive by motor-drive circuit 3 after the level angle of projected image 9, to be rotated
Stepper motor 4 drives the dmd chip 7 on DLP circuit boards 6 to rotate.Dmd chip 7 projects throwing by projection lens 8 on curtain
Shadow picture 9.Provided with the direct irradiation dmd chip 7 of high bright light source 5 inside projecting apparatus.
The utility model is acquired by CCD camera 2 to projected picture 9, is transferred to embeded processor 1 and is schemed
As processing, determine that the driving of controlled motor drive circuit 3 rotating stepper motor 4 rotates correspondence after the level inclination of projected picture 9
The need for the angle corrected, rotating stepper motor 4 is to mechanically connect with DLP circuit boards 6, therefore DLP circuit boards 6 and plate are uploaded
Some dmd chips 7 can also turn over corresponding angle correction, due to the rotation of dmd chip 7, pass through the projection projection of projection lens 8
Picture 9, can also turn over corresponding angle correction, so as to reach the purpose of the rectification of projected picture 9.
The directional light that high bright light source 5 sends high brightness is incident upon on dmd chip 7, and dmd chip 7 is receiving DLP circuit boards
Light is reflexed on projection lens 8 after 6 control signal, projected picture 9 is projected out by the amplification of projection lens 8.Work as throwing
When the occurred level of shadow picture 9 is tilted, it is corresponding that rotating stepper motor 4 will drive DLP circuit boards 11 and dmd chip 12 to rotate
Angle correction, while projected picture 9 can also correct corresponding angle, so as to reach the purpose of the rectification of projected picture 9.
The utility model is exemplarily described above in conjunction with accompanying drawing, it is clear that the utility model implement not by
The limitation of aforesaid way, if the various improvement of technical solutions of the utility model progress are employed, or not improved directly application
In other occasions, within protection domain of the present utility model.
Claims (3)
1. a kind of new projected image level correction device, it is characterised in that：CCD camera is provided with described means for correcting
(2) acquired projections picture (9) is sent into embeded processor (1) and handled afterwards, and embeded processor (1) judges projected image
(9) rotating stepper motor (4) is driven to drive the DMD on DLP circuit boards (6) by motor-drive circuit (3) after level angle
Chip (7) is rotated.
2. a kind of new projected image level correction device according to claim 1, it is characterised in that：Described DMD
Chip (7) projects projected picture (9) by projection lens (8) on curtain.
3. a kind of new projected image level correction device according to claim 1, it is characterised in that：Described projection
Provided with high bright light source (5) direct irradiation dmd chip (7) inside instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720236639.9U CN206559543U (en) | 2017-03-13 | 2017-03-13 | A kind of new projected image level correction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720236639.9U CN206559543U (en) | 2017-03-13 | 2017-03-13 | A kind of new projected image level correction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206559543U true CN206559543U (en) | 2017-10-13 |
Family
ID=60363335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720236639.9U Expired - Fee Related CN206559543U (en) | 2017-03-13 | 2017-03-13 | A kind of new projected image level correction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206559543U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110809141A (en) * | 2019-09-29 | 2020-02-18 | 深圳市火乐科技发展有限公司 | Trapezoidal correction method and device, projector and storage medium |
-
2017
- 2017-03-13 CN CN201720236639.9U patent/CN206559543U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110809141A (en) * | 2019-09-29 | 2020-02-18 | 深圳市火乐科技发展有限公司 | Trapezoidal correction method and device, projector and storage medium |
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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: 20171013 Termination date: 20200313 |
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| CF01 | Termination of patent right due to non-payment of annual fee |