CN207216258U - Laser projection device and system - Google Patents
Laser projection device and system Download PDFInfo
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- CN207216258U CN207216258U CN201721271441.0U CN201721271441U CN207216258U CN 207216258 U CN207216258 U CN 207216258U CN 201721271441 U CN201721271441 U CN 201721271441U CN 207216258 U CN207216258 U CN 207216258U
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Abstract
The utility model discloses a kind of laser projection device and system, and the device includes：Visual demodulator, laser driver, first laser light source, second laser light source, bundling device and scanning galvanometer；Visual demodulator generates laser-driven signal and scanning drive signal according to vision signal；Laser driver drives first laser light source according to laser-driven signal respectively and second laser light source is emitted first laser and second laser, first laser and the polarised light that second laser is different polarization states；First laser and second laser are closed beam by bundling device, obtain laser beam；Scanning galvanometer reflects laser beam and carries out vibration projection according to scanning drive signal.The utility model can both realize 3D laser projections, can also realize the 2D laser projections of high brightness according to the difference of the vision signal of input.
Description
Technical field
It the utility model is related to laser technology field.More particularly, to a kind of laser projection device and system.
Background technology
The realization principle of 3D projections is to be regarded with the projecting apparatus synchronized projection two-way of the polarised light of two outgoing different polarization states
Poor image, after user wears 3D polarising glasses, different images that right and left eyes are respectively seen, by the parallax of human eye, produce vertical
Body effect.At present, 3D projector equipments, especially the usual volume of 3D laser projection devices is larger, expensive and function is single, no
Can meet the needs of volume miniaturization, function diversification.
Accordingly, it is desirable to provide a kind of laser projection device and system.
Utility model content
The purpose of this utility model is to provide a kind of laser projection device and system, to realize volume miniaturization and function
Diversification.
To reach above-mentioned purpose, the utility model uses following technical proposals：
The utility model discloses a kind of laser projection device, including visual demodulator, laser driver, first laser light
Source, second laser light source, bundling device and scanning galvanometer；
Described image demodulator generates laser-driven signal and scanning drive signal according to vision signal；
The laser driver drives the first laser light source and described second respectively according to the laser-driven signal
LASER Light Source is emitted first laser and second laser, the first laser and the polarization that the second laser is different polarization states
Light；
The first laser and the second laser are closed beam by the bundling device, obtain laser beam；
The scanning galvanometer reflects the laser beam and carries out vibration projection according to the scanning drive signal.
Preferably, in the device, the laser-driven signal includes left eye laser-driven signal and right eye Laser Driven is believed
Number；The laser driver drives first laser light source outgoing first laser according to the left eye laser-driven signal, according to institute
State right eye laser-driven signal driving second laser light source outgoing second laser.
Preferably, in the device, the laser driver drives first laser light source according to identical laser-driven signal
Outgoing first laser simultaneously drives second laser light source to be emitted second laser.
Preferably, in the device, one of the first laser and the second laser are S state polarised lights, and another is P
State polarised light.
Preferably, in the device, the first laser light source and the second laser light source are respectively tricolor laser light
Source.
A kind of laser projection system, including projection screen and above-mentioned laser projection device is also disclosed in the utility model.
The beneficial effects of the utility model are as follows：
Technical scheme described in the utility model can both realize 3D laser projections according to the difference of the vision signal of input,
The 2D laser projections of high brightness can also be realized.And technical scheme described in the utility model is simple in construction, compact, is applied to
Micro projection system.
Brief description of the drawings
Specific embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings；
Fig. 1 shows the schematic diagram of laser projection device.
Fig. 2 shows the flow chart of laser projection method.
Embodiment
In order to illustrate more clearly of the utility model, the utility model is done into one with reference to preferred embodiments and drawings
The explanation of step.Similar part is indicated with identical reference in accompanying drawing.It will be appreciated by those skilled in the art that below
Specifically described content is illustrative and be not restrictive, and should not limit the scope of protection of the utility model with this.
As shown in figure 1, the laser projection device that the present embodiment provides includes visual demodulator 1, laser driver 2, first
LASER Light Source 3, second laser light source 4, bundling device 5 and scanning galvanometer 6, wherein, first laser light source 3 and second laser light source 4
Respectively there is tricolor laser light source rich in color, that color saturation is high；
Visual demodulator 1 generates laser-driven signal and scanning drive signal according to vision signal；
Laser driver 2 drives first laser light source 3 and second laser light source 4 to be emitted the respectively according to laser-driven signal
One laser and second laser, wherein, first laser and the polarised light that second laser is different polarization states, it is preferred that, the
One of one laser and second laser are S state polarised lights, and another is P state polarised lights；
First laser and second laser are closed beam by bundling device 5, obtain laser beam；
Scanning galvanometer 6 reflects laser beam and carries out vibration projection according to scanning drive signal, i.e. scanning galvanometer 6 is according to sweeping
Retouch drive signal vibration and laser beam is reflected while vibration to realize vibration projection, wherein scanning galvanometer 6 is preferably micro-
Type galvanometer, such as MEMS galvanometers, with the miniaturization that realization device is overall.
The laser projection device that the present embodiment provides can be used for 3D laser projections, be also used for the 2D laser projections of high brightness,
In the specific implementation：
If vision signal is the 3D vision signals comprising left-eye video signal and right eye vision signal, visual demodulator 1
Left eye laser-driven signal and right eye laser-driven signal are included according to the laser-driven signal that vision signal generates.And then swash
CD-ROM driver 2 drives first laser light source 3 to be emitted first laser and according to right eye Laser Driven according to left eye laser-driven signal
Signal driving second laser light source 4 is emitted second laser.So, in scanning galvanometer 6 according to scanning drive signal by first laser
After carrying out vibration projection with the laser beam obtained after second laser conjunction beam, user takes 3D polarising glasses and watched from projection screen
The video that is projected out of laser projection device provided by the present embodiment be 3D three-dimensional video-frequencies, laser projection device realizes 3D laser
Projection.The laser projection device that the present embodiment provides realizes 3D using two LASER Light Sources rather than the projecting apparatus of two entirety
Laser projection, realize miniaturization and low cost.
If vision signal is 2D vision signals, visual demodulator 1 generates a laser-driven signal according to vision signal.
And then laser driver 2 drives first laser light source 3 to be emitted first laser and driving second according to identical laser-driven signal
LASER Light Source 4 is emitted second laser, that is, as driving first laser light source 3 with the drive signal of second laser light source 4 is
's.So, first laser and second laser are closed to the laser beam progress obtained after beam in scanning galvanometer 6 according to scanning drive signal
After vibration projection, the brightness that is projected by the superposition can increase of the projection of first laser and second laser, user's bore hole from
The video that the laser projection device provided by the present embodiment watched on projection screen is projected out is the 2D videos of high brightness, laser
Projection arrangement realizes the 2D laser projections of high brightness.
To sum up, the laser projection device that the present embodiment provides can both realize 3D according to the difference of the vision signal of input
Laser projection, the 2D laser projections of high brightness can also be realized, realize function diversification.
The present embodiment additionally provides a kind of laser projection system, including projection screen and above-mentioned laser projection device.
As shown in Fig. 2 the present embodiment additionally provides a kind of laser projection method, including：
Laser-driven signal and scanning drive signal are generated according to vision signal；
First laser light source and second laser light source is driven to be emitted first laser and second respectively according to laser-driven signal
Laser, first laser and second laser are the polarised light of different polarization states, it is preferred that, first laser and second laser its
One of be S state polarised lights, another is P state polarised lights；
First laser and second laser are closed into beam, obtain laser beam；
Vibration projection is carried out to laser beam according to scanning drive signal.
This method in the specific implementation,
If vision signal is the 3D vision signals comprising left-eye video signal and right eye vision signal, according to vision signal
The laser-driven signal of generation includes left eye laser-driven signal and right eye laser-driven signal；Distinguished according to laser-driven signal
Driving first laser light source and second laser light source outgoing first laser and second laser further comprise：Driven according to left eye laser
Dynamic signal driving first laser light source outgoing first laser simultaneously drives the outgoing of second laser light source according to right eye laser-driven signal
Second laser.Vibration throwing is being carried out to first laser and second laser are closed into the laser beam obtained after beam according to scanning drive signal
Movie queen, you can realize 3D laser projections.
If vision signal is 2D vision signals, a laser-driven signal is generated according to vision signal；Driven according to laser
Dynamic signal drives first laser light source respectively and second laser light source is emitted first laser and second laser further comprises：According to
Identical laser-driven signal driving first laser light source outgoing first laser simultaneously drives second laser light source to be emitted second laser.
After the laser beam obtained after according to scanning drive signal to by first laser and second laser conjunction beam carries out vibration projection, you can
Realize the 2D laser projections of high brightness.
Obviously, above-described embodiment of the present utility model is only intended to clearly illustrate the utility model example, and
It is not the restriction to embodiment of the present utility model, for those of ordinary skill in the field, in described above
On the basis of can also make other changes in different forms, all embodiments can not be exhaustive here,
It is every to belong to obvious changes or variations that the technical solution of the utility model is extended out still in of the present utility model
The row of protection domain.
Claims (6)
1. a kind of laser projection device, it is characterised in that including visual demodulator, laser driver, first laser light source, second
LASER Light Source, bundling device and scanning galvanometer；
Described image demodulator generates laser-driven signal and scanning drive signal according to vision signal；
The laser driver drives the first laser light source and the second laser respectively according to the laser-driven signal
Light source is emitted first laser and second laser, the first laser and the polarised light that the second laser is different polarization states；
The first laser and the second laser are closed beam by the bundling device, obtain laser beam；
The scanning galvanometer reflects the laser beam and carries out vibration projection according to the scanning drive signal.
2. laser projection device according to claim 1, it is characterised in that the laser-driven signal includes left eye laser
Drive signal and right eye laser-driven signal；The laser driver drives first laser according to the left eye laser-driven signal
Light source is emitted first laser, and second laser light source outgoing second laser is driven according to the right eye laser-driven signal.
3. laser projection device according to claim 1, it is characterised in that the laser driver is according to identical laser
Drive signal driving first laser light source outgoing first laser simultaneously drives second laser light source to be emitted second laser.
4. laser projection device according to claim 1, it is characterised in that the first laser and the second laser its
One of be S state polarised lights, another is P state polarised lights.
5. laser projection device according to claim 1, it is characterised in that the first laser light source and described second swashs
Radiant is respectively tricolor laser light source.
A kind of 6. laser projection system, it is characterised in that the laser including projection screen and as any one of claim 1-5
Projection arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721271441.0U CN207216258U (en) | 2017-09-29 | 2017-09-29 | Laser projection device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721271441.0U CN207216258U (en) | 2017-09-29 | 2017-09-29 | Laser projection device and system |
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| Publication Number | Publication Date |
|---|---|
| CN207216258U true CN207216258U (en) | 2018-04-10 |
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ID=61820024
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721271441.0U Active CN207216258U (en) | 2017-09-29 | 2017-09-29 | Laser projection device and system |
Country Status (1)
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| CN (1) | CN207216258U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107577113A (en) * | 2017-09-29 | 2018-01-12 | 歌尔股份有限公司 | Laser projection device, system and method |
| CN108600720A (en) * | 2018-07-18 | 2018-09-28 | 中国电影器材有限责任公司 | A kind of light source, device, system and method for picture signal HDR projections |
-
2017
- 2017-09-29 CN CN201721271441.0U patent/CN207216258U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107577113A (en) * | 2017-09-29 | 2018-01-12 | 歌尔股份有限公司 | Laser projection device, system and method |
| CN108600720A (en) * | 2018-07-18 | 2018-09-28 | 中国电影器材有限责任公司 | A kind of light source, device, system and method for picture signal HDR projections |
| CN108600720B (en) * | 2018-07-18 | 2024-02-20 | 中国电影器材有限责任公司 | Light source, device, system and method for HDR projection of image signals |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201022 Address after: 261031 north of Yuqing street, east of Dongming Road, high tech Zone, Weifang City, Shandong Province (Room 502, Geer electronic office building) Patentee after: GoerTek Optical Technology Co.,Ltd. Address before: 261031 No. 268 Dongfang Road, Weifang hi tech Development Zone, Shandong, Weifang Patentee before: GOERTEK Inc. |
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| TR01 | Transfer of patent right |