CN206431410U - A kind of laser projection device - Google Patents
A kind of laser projection device Download PDFInfo
- Publication number
- CN206431410U CN206431410U CN201720036514.1U CN201720036514U CN206431410U CN 206431410 U CN206431410 U CN 206431410U CN 201720036514 U CN201720036514 U CN 201720036514U CN 206431410 U CN206431410 U CN 206431410U
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- CN
- China
- Prior art keywords
- diffusion sheet
- laser
- wheel
- projection device
- fluorescent wheel
- 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.)
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Abstract
The utility model is related to field of projection display, more particularly to a kind of laser projection device.The device is made up of laser beam collecting system, fluorescent wheel activating system, even photosystem and imaging system, laser beam collecting system includes the first diffusion sheet, fluorescent wheel activating system includes the second diffusion sheet and fluorescent wheel, even photosystem includes colour wheel, colour wheel and fluorescent wheel are applied in combination, and the first diffusion sheet is located on the right side of blue laser light source, and the second diffusion sheet is located at the right side of the first diffusion sheet, fluorescent wheel is located between the first diffusion sheet and the second diffusion sheet, and colour wheel is located at below the second diffusion sheet.The laser projection device that the utility model is provided can solve the problem that the color saturation of speckle issue and lifting projected picture, make projected picture bright in luster.
Description
Technical field
The utility model is related to field of projection display, more particularly to a kind of laser projection device.
Background technology
Laser display has progressively guided the development of global laser display technology as forth generation Display Technique.But laser shows
Show that technology has a distinct disadvantage, because laser has coherence, so laser, which is irradiated on projection screen, can produce speckle,
Have a strong impact on image quality；Also there is another open defect in one-wavelength laser projector, because the light that fluorescent material is ejected is not single
One wavelength, but the light wave with broadband scope, cause projected picture color saturation low, the picture projected is not fresh enough
It is gorgeous.
Therefore it is badly in need of a kind of color saturation that can be solved speckle issue and lift projected picture, make projected picture color fresh
Gorgeous laser projection device.
The content of the invention
In view of problem above, the utility model, which provides one kind, can solve speckle issue, and the color of lifting projected picture is satisfied
And degree, make the bright laser projection device of projected picture.
To achieve these goals, the utility model provides a kind of laser projection device, by laser beam collecting system, glimmering
Halo activating system, even photosystem and imaging system composition, the laser beam collecting system includes the first diffusion sheet, described glimmering
Halo activating system includes the second diffusion sheet and fluorescent wheel, and the even photosystem includes colour wheel, and colour wheel and fluorescent wheel are applied in combination,
First diffusion sheet is located on the right side of blue laser light source, and second diffusion sheet is located at the right side of the first diffusion sheet, described glimmering
Halo is located between the first diffusion sheet and the second diffusion sheet, and the fluorescent wheel is fixed on fluorescent wheel and excited by metal fixed seat is
Unite on enclosure metallic support, the colour wheel is located at below the second diffusion sheet, and the colour wheel is fixed on even by metal clips
On photosystem enclosure metallic support.On the one hand first diffusion sheet plays even light action, makes the hot spot for being incident to fluorescent wheel strong
Degree is evenly distributed, and improves the launching efficiency of fluorescent material, on the other hand for eliminating the speckle of laser projection.Second diffusion sheet is used for
Laser projection speckle is further eliminated, is solved due to the speckle issue that laser coherence is caused.
Also include input light source in the laser beam collecting system.
Also include optical tunnel in the even photosystem, the optical tunnel is located at colour wheel lower right.
Also include optical tunnel in the even photosystem, the optical tunnel is located at below colour wheel.
The imaging system includes TIR prism, DMD and projection lens, and it is left that the DMD and TIR prism are each provided at optical tunnel
Side, the TIR prism is fixed on PBC plates in DMD left side, the DMD, and PBC plates are screwed in outside imaging system
On shell hardware, the TIR prism presses attached and dispensing mode to be fixed on imaging system enclosure by metal holder
On metallic support, the projection lens is located at below blue laser light source, and the projection lens is screwed in imaging system
The left end of system.
Light source is inputted in the laser beam collecting system and uses blue laser.On the one hand blue laser is used to provide
Blue light needed for RGB three primary colours, is on the other hand used as excitation light source.
The input light source is formed by 1~8Bank blue laser combination of light sources.Used in laser beam collecting system
Many blue laser light sources, to meet high-brightness projection demand.
The identical Fill Color angle of colour wheel is corresponded in fluorescent wheel and even photosystem in the fluorescent wheel activating system.
The colour wheel added in illumination path can play filter action, lift the color saturation of projected picture, make projected picture color
It is bright-coloured.
Advantage and beneficial effect of the present utility model are the provision of a kind of color for solving speckle issue, lifting projected picture
Color saturation degree, makes the bright laser projection device of projected picture.
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 accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, before creative labor is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is laser projection schematic diagram.
Fig. 2 is laser projection device structural representation.
Fig. 3 is fluorescent wheel and colour wheel combination schematic diagram.
Description of reference numerals：
1. input the fluorescent wheel of 21. first 22. second diffusion sheet of diffusion sheet of light source 3.
4. the projection lens of 5. optical tunnel 6.TIR prisms 7.DMD of colour wheel 8.
Embodiment
With reference to the accompanying drawings and examples, embodiment of the present utility model is further described.Implement below
Example is only used for clearly illustrating the technical solution of the utility model, and protection model of the present utility model can not be limited with this
Enclose.
As shown in figure 1, the laser projection device by laser beam collecting system, fluorescent wheel activating system, even photosystem and
Imaging system is constituted, and laser beam collecting system includes the first diffusion sheet 21, and fluorescent wheel activating system includes the second diffusion sheet 22
With fluorescent wheel 3, even photosystem includes colour wheel 4, and colour wheel 4 and fluorescent wheel 3 are applied in combination, and the first diffusion sheet 21 is located at blue laser light
On the right side of source, the second diffusion sheet 22 is located at the right side of the first diffusion sheet 21, and fluorescent wheel 3 is located at the first diffusion sheet 21 and the second diffusion sheet
Between 22, fluorescent wheel 3 is fixed on fluorescent wheel activating system enclosure metallic support by metal fixed seat, and colour wheel 4 is located at
The lower section of second diffusion sheet 22, colour wheel 4 is fixed on even photosystem enclosure metallic support by metal clips.First diffusion sheet
On the one hand even light action is played, the spot intensity for being incident to fluorescent wheel is evenly distributed, improve the launching efficiency of fluorescent material, it is another
Aspect is used for the speckle for eliminating laser projection.Second diffusion sheet is used to further eliminate laser projection speckle, solves due to laser
The speckle issue that coherence causes.
Also include input light source 1 in laser beam collecting system.Also include optical tunnel 5 in even photosystem, optical tunnel 5 is located at
The lower right of colour wheel 4 or lower section.Imaging system includes TIR prism 6, DMD7 and projection lens 8, and DMD7 and TIR prism 6 are each provided at even
The left side of optical wand 5, TIR prism 6 is in DMD7 left side, and DMD7 is fixed on PBC plates, and PBC plates are screwed in imaging system
On outer cover metal structural member, TIR prism 6 presses attached and dispensing mode to be fixed on imaging system enclosure gold by metal holder
Belong on support, projection lens 8 is located at below blue laser light source, projection lens 8 is screwed in the left end of imaging system.
Light source is inputted in laser beam collecting system and uses blue laser.It is by 1~8Bank blue laser light sources to input light source 1
Combine.The identical Fill Color angle of colour wheel 4 is corresponded in fluorescent wheel 3 and even photosystem in fluorescent wheel activating system.
The laser projection device is used as input light source 1, blueness in laser beam collecting system using blue laser light source
Laser pools a beam diameter very small hot spot by plus lens, after light splitting piece, is incident to fluorescent wheel 3, excites glimmering
Fluorescent material on halo 3, red and green light can be provided by producing, and form the RGB three primary colours produced needed for color.Due to blue light
The scattered arrangement of LASER Light Source, therefore be also dispersed distribution by the light after the convergence of laser collecting system out, cause final incidence
To the spot intensity skewness of fluorescent wheel, be likely to result in be incident to fluorescent material optical power density it is too high, so as to influence
The launching efficiency of fluorescent material.Therefore, the laser projection device adds the first diffusion sheet 21 and second in fluorescent wheel activating system
Diffusion sheet 22.
As shown in figure 3, the laser projection device uses the combination of 3 additive color wheel of fluorescent wheel 4, three primary colours are in fluorescence wheel system
Enter even photosystem after closing light, dodging is carried out by optical tunnel 5 in even photosystem, the light come out from even photosystem is incident to
TIR prism 7, occurs completely reflecting mirror in TIR prism 7, and reflected light is incident to DMD 6, TIR ribs are reflected into DMD 6
Mirror 7, enters camera lens by TIR prism 7.Most projected picture is projected on screen by projection lens 8 at last.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc. should be included in the utility model
Protection domain within.
Claims (8)
1. a kind of laser projection device, it is characterised in that by laser beam collecting system, fluorescent wheel activating system, even photosystem
With imaging system composition, the laser beam collecting system includes the first diffusion sheet, and the fluorescent wheel activating system includes second
Diffusion sheet and fluorescent wheel, the even photosystem include colour wheel, and colour wheel and fluorescent wheel are applied in combination, and first diffusion sheet is located at indigo plant
On the right side of ray laser light source, second diffusion sheet is located at the right side of the first diffusion sheet, the fluorescent wheel be located at the first diffusion sheet with
Between second diffusion sheet, the fluorescent wheel is fixed on fluorescent wheel activating system enclosure metallic support by metal fixed seat
On, the colour wheel is located at below the second diffusion sheet, and the colour wheel is fixed on even photosystem enclosure metal by metal clips
On support.
2. laser projection device according to claim 1, it is characterised in that also include in the laser beam collecting system
Input light source.
3. laser projection device according to claim 1, it is characterised in that also include optical tunnel in the even photosystem,
The optical tunnel is located at colour wheel lower right.
4. laser projection device according to claim 1, it is characterised in that also include optical tunnel in the even photosystem,
The optical tunnel is located at below colour wheel.
5. laser projection device according to claim 1, it is characterised in that the imaging system includes TIR prism, DMD
And projection lens, the DMD and TIR prism be each provided on the left of optical tunnel, and the TIR prism is consolidated in DMD left side, the DMD
It is scheduled on PBC plates, PBC plates are screwed on imaging system outer cover metal structural member, the TIR prism is solid by metal
Determining frame presses attached and dispensing mode to be fixed on imaging system enclosure metallic support, and the projection lens is located at blue laser light
Below source, the projection lens is screwed in the left end of imaging system.
6. laser projection device according to claim 1 or 2, it is characterised in that defeated in the laser beam collecting system
Enter light source and use blue laser.
7. laser projection device according to claim 2, it is characterised in that the input light source is by 1~8Bank blue lights
LASER Light Source is combined.
8. laser projection device according to claim 1, it is characterised in that in the fluorescent wheel activating system fluorescent wheel and
The identical Fill Color angle of colour wheel is corresponded in even photosystem.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720036514.1U CN206431410U (en) | 2017-01-12 | 2017-01-12 | A kind of laser projection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720036514.1U CN206431410U (en) | 2017-01-12 | 2017-01-12 | A kind of laser projection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206431410U true CN206431410U (en) | 2017-08-22 |
Family
ID=59582315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720036514.1U Expired - Fee Related CN206431410U (en) | 2017-01-12 | 2017-01-12 | A kind of laser projection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206431410U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110673328A (en) * | 2019-10-10 | 2020-01-10 | 成都极米科技股份有限公司 | Fluorescent wheel, light source module and projector |
| CN111025831A (en) * | 2019-12-03 | 2020-04-17 | 青岛海信激光显示股份有限公司 | Laser projection apparatus and light conversion mechanism |
| CN113641063A (en) * | 2021-08-16 | 2021-11-12 | 深圳市火乐科技发展有限公司 | Light uniformizing device, projector optical machine and projector |
-
2017
- 2017-01-12 CN CN201720036514.1U patent/CN206431410U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110673328A (en) * | 2019-10-10 | 2020-01-10 | 成都极米科技股份有限公司 | Fluorescent wheel, light source module and projector |
| US11979690B2 (en) | 2019-10-10 | 2024-05-07 | Chengdu Xgimi Technology Co., Ltd | Phosphor wheel, light source module and projector |
| CN111025831A (en) * | 2019-12-03 | 2020-04-17 | 青岛海信激光显示股份有限公司 | Laser projection apparatus and light conversion mechanism |
| CN113641063A (en) * | 2021-08-16 | 2021-11-12 | 深圳市火乐科技发展有限公司 | Light uniformizing device, projector optical machine and projector |
| CN113641063B (en) * | 2021-08-16 | 2023-12-08 | 深圳市火乐科技发展有限公司 | Dodging device, projector optical machine and projector |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170822 Termination date: 20200112 |