CN109031878A - High dynamic range short focus optical projection system - Google Patents
High dynamic range short focus optical projection system Download PDFInfo
- Publication number
- CN109031878A CN109031878A CN201811008820.XA CN201811008820A CN109031878A CN 109031878 A CN109031878 A CN 109031878A CN 201811008820 A CN201811008820 A CN 201811008820A CN 109031878 A CN109031878 A CN 109031878A
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- CN
- China
- Prior art keywords
- dynamic range
- high dynamic
- short focus
- focus optical
- projection system
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- 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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Classifications
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- 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
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/60—Projection screens characterised by the nature of the surface
Abstract
The present invention provides a kind of high dynamic range short focus optical projection system comprising: projection arrangement and projection screen；The projection arrangement includes: exposure module, HDR image generation module, projection imaging module, refractor group, non-spherical reflector, the exposure module has several light exposures, the HDR image generation module generates HDR image according to the image under different light exposures, the projection imaging module is through the refractor group, the HDR image of generation is projected on the projection screen by non-spherical reflector, the projection screen includes: backlight and the display screen that is installed in the backlight, the backlight includes upper substrate, lower substrate and coated on the backlight layer on the upper substrate, the display screen includes preceding substrate and the filter layer between the preceding substrate and upper substrate.High dynamic range short focus optical projection system of the invention improves the clarity of imaging, while by using the projection screen of sunken light, advantageously ensuring that blur-free imaging by HDR technology.
Description
Technical field
The present invention relates to projection imaging technical field more particularly to a kind of high dynamic range short focus optical projection systems.
Background technique
Projector be it is a kind of the profile of workpiece is amplified using optical element, and be projected into the optics on projection screen
Instrument.However, existing projector and the projection screen to match therewith, the item in dark is needed in projection imaging
It is imaged under part.This is because projection screen is easy to happen reflective and then causes to influence the clear of imaging when light is stronger.
In addition, stronger light is easy to cause the image exposure being projeced on projection screen excessive, the clear of imaging is further influenced.Cause
This, in view of the above-mentioned problems, it is necessary to propose further solution.
Summary of the invention
The purpose of the present invention is to provide a kind of high dynamic range short focus optical projection systems, are existed in the prior art with overcoming
Deficiency.
For achieving the above object, the present invention provides a kind of high dynamic range short focus optical projection system comprising: projection
Device and projection screen；
The projection arrangement includes: exposure module, HDR image generation module, projection imaging module, refractor group, aspherical
Reflecting mirror, the exposure module have several light exposures, and the HDR image generation module is raw according to the image under different light exposures
At HDR image, the HDR image of generation is projected on by the projection imaging module through the refractor group, non-spherical reflector
On the projection screen, the projection screen includes: backlight and the display screen that is installed in the backlight, and the backlight includes
Upper substrate, lower substrate and coated on the backlight layer on the upper substrate, the display screen include preceding substrate and are located at described
Filter layer between preceding substrate and upper substrate.
As the improvement of high dynamic range short focus optical projection system of the invention, the exposure module includes multiple luminous cores
Piece, each luminescence chip are respectively independently arranged, and multiple luminescence chips are selectively exposed.
It is more when multiple luminescence chips are exposed as the improvement of high dynamic range short focus optical projection system of the invention
A luminescence chip is synchronous or asynchronous is exposed.
As the improvement of high dynamic range short focus optical projection system of the invention, any luminescence chip includes setting gradually
: n-type semiconductor layer, luminescent layer, p-type semiconductor layer, transparent electrode layer and reflecting layer.
As the improvement of high dynamic range short focus optical projection system of the invention, the HDR image generation module includes drop
It makes an uproar unit, adjustment unit and synthesis unit, the noise reduction unit handles image data, and the adjustment unit is to processing
Data afterwards are adjusted, and the image data being adjusted under different light exposures is fitted by the synthesis unit.
As the improvement of high dynamic range short focus optical projection system of the invention, the refractor group, aspherical reflection
The non-coaxial setting of mirror, the optical path by the refractor group is through the non-spherical reflector reflective projection in the projection screen
On.
As the improvement of high dynamic range short focus optical projection system of the invention, the upper substrate, lower substrate are glass base
Plate.
As the improvement of high dynamic range short focus optical projection system of the invention, the backlight layer includes fluorescence coating and black
Bottom, the fluorescence coating and the black matrix layer interval are arranged.
As the improvement of high dynamic range short focus optical projection system of the invention, also set up on the preceding substrate of the display screen
There are the sunken light film and extinction film being stacked.
As the improvement of high dynamic range short focus optical projection system of the invention, several protrusions are provided on the sunken light film
And recess, the extinction film are incorporated into the protrusion and/or recess.
Compared with prior art, the beneficial effects of the present invention are: high dynamic range short focus optical projection system of the invention is logical
HDR technology is crossed, the clarity of imaging is improved, while by using the projection screen of sunken light, advantageously ensuring that blur-free imaging.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The some embodiments recorded in invention, for those of ordinary skill in the art, without creative efforts,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 is the module diagram of one specific embodiment of high dynamic range short focus optical projection system of the invention.
Specific embodiment
The present invention is described in detail for each embodiment shown in reference to the accompanying drawing, but it should be stated that, these
Embodiment is not limitation of the present invention, those of ordinary skill in the art according to these embodiments made by function, method,
Or equivalent transformation or substitution in structure, all belong to the scope of protection of the present invention within.
As shown in Figure 1, high dynamic range short focus optical projection system of the invention includes: projection arrangement and projection screen.
The projection arrangement is used to image being projeced into projection screen, specifically includes: exposure module 1, HDR image are raw
At module 2, projection imaging module 3, refractor group 4, non-spherical reflector 5.
In order to clearly be imaged, the projection arrangement carries out projection imaging using HDR technology.Specifically, the exposure
Optical module 1 has several light exposures, and the HDR image generation module 2 generates HDR image according to the image under different light exposures.
To, the image of different light exposures is overlapped, the problem that image definition is not high under single light exposure is overcome, which increase
The brightness range that can be recognized by the human eye on image.
In one embodiment, the exposure module 1 includes multiple luminescence chips, and each luminescence chip is respectively independently set
It sets, multiple luminescence chips are selectively exposed.To can get different exposures according to the quantity that luminescence chip is put into
Amount.In addition, when multiple luminescence chips are exposed, multiple luminescence chips can synchronize or it is asynchronous be exposed, to meet not
Same exposure demand.The luminescence chip is semiconductor material, and specifically, any luminescence chip includes setting gradually: N-shaped half
Conductor layer, luminescent layer, p-type semiconductor layer, transparent electrode layer and reflecting layer.
Further, the HDR image generation module 2 is wrapped for the image under different exposure to be overlapped
Include noise reduction unit, adjustment unit and synthesis unit.Wherein, the noise reduction unit handles image data, the adjustment
To treated, data are adjusted unit, and the synthesis unit carries out the image data being adjusted under different light exposures
Fitting.Image after fitting is projeced on the projection screen by the projection imaging module 3.
In order to obtain relatively short projection stroke, the projection imaging module 3 is through the refractor group 4, aspherical
The HDR image of generation is projected on the projection screen by reflecting mirror 5.It is set so set, straight line projection stroke is carried out bending
It sets, is effectively shortened the stroke of projection.Wherein, the refractor group 4, the non-coaxial setting of non-spherical reflector 5, by institute
The optical path of refractor group 4 is stated through 5 reflective projection of non-spherical reflector on the projection screen.
The projection screen for realizing projection arrangement imaging.Specifically, the projection screen include: backlight 6 and
The display screen 7 being installed in the backlight 6.Wherein, the backlight 6 including upper substrate, lower substrate and is coated on the upper base
6 layers of backlight on plate.Preferably, include fluorescence coating and black matrix layer, the fluorescence coating and the black matrix interlayer for 6 layers of the backlight
Every setting.In addition, the upper substrate, lower substrate are glass substrate.
Further, the display screen 7 includes preceding substrate and the filter layer between the preceding substrate and upper substrate.
In order to obtain preferably sunken light effect, the sunken light film 8 and extinction film being stacked are additionally provided on the preceding substrate of the display screen 7
9.Wherein, several protrusions and recess are provided on the sunken light film 8, the extinction film 9 is incorporated into the protrusion and/or recess
On.So set, being conducive to avoid the direct projection of light by setting protrusion and/or recess, while advantageous by setting extinction film 9
In absorption reflected light, and then improve the clarity of imaging.Preferably, the sunken light film 8 is thermoplastic polyurethane film, extinction film 9
For black ink layer.
In conclusion high dynamic range short focus optical projection system of the invention improves the clear of imaging by HDR technology
Degree, while by using the projection screen of sunken light, advantageously ensure that blur-free imaging.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (10)
1. a kind of high dynamic range short focus optical projection system, which is characterized in that the high dynamic range short focus optical projection system packet
It includes: projection arrangement and projection screen；
The projection arrangement includes: exposure module, HDR image generation module, projection imaging module, refractor group, aspherical
Reflecting mirror, the exposure module have several light exposures, and the HDR image generation module is raw according to the image under different light exposures
At HDR image, the HDR image of generation is projected on by the projection imaging module through the refractor group, non-spherical reflector
On the projection screen, the projection screen includes: backlight and the display screen that is installed in the backlight, and the backlight includes
Upper substrate, lower substrate and coated on the backlight layer on the upper substrate, the display screen include preceding substrate and are located at described
Filter layer between preceding substrate and upper substrate.
2. high dynamic range short focus optical projection system according to claim 1, which is characterized in that the exposure module includes
Multiple luminescence chips, each luminescence chip are respectively independently arranged, and multiple luminescence chips are selectively exposed.
3. high dynamic range short focus optical projection system according to claim 2, which is characterized in that multiple luminescence chips carry out
When exposure, multiple luminescence chips are synchronous or asynchronous are exposed.
4. high dynamic range short focus optical projection system according to claim 2, which is characterized in that any luminescence chip includes
It sets gradually: n-type semiconductor layer, luminescent layer, p-type semiconductor layer, transparent electrode layer and reflecting layer.
5. high dynamic range short focus optical projection system according to claim 1, which is characterized in that the HDR image generates
Module includes noise reduction unit, adjustment unit and synthesis unit, and the noise reduction unit handles image data, the adjustment
To treated, data are adjusted unit, and the synthesis unit carries out the image data being adjusted under different light exposures
Fitting.
6. high dynamic range short focus optical projection system according to claim 1, which is characterized in that the refractor group,
The non-coaxial setting of non-spherical reflector, the optical path by the refractor group is through the non-spherical reflector reflective projection in institute
It states on projection screen.
7. high dynamic range short focus optical projection system according to claim 1, which is characterized in that the upper substrate, lower base
Plate is glass substrate.
8. high dynamic range short focus optical projection system according to claim 1, which is characterized in that the backlight layer includes glimmering
Photosphere and black matrix layer, the fluorescence coating and the black matrix layer interval are arranged.
9. high dynamic range short focus optical projection system according to claim 1, which is characterized in that the preceding base of the display screen
The sunken light film and extinction film being stacked are additionally provided on plate.
10. high dynamic range short focus optical projection system according to claim 1, which is characterized in that set on the sunken light film
It is equipped with several protrusions and recess, the extinction film is incorporated into the protrusion and/or recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811008820.XA CN109031878A (en) | 2018-08-31 | 2018-08-31 | High dynamic range short focus optical projection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811008820.XA CN109031878A (en) | 2018-08-31 | 2018-08-31 | High dynamic range short focus optical projection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109031878A true CN109031878A (en) | 2018-12-18 |
Family
ID=64625959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811008820.XA Pending CN109031878A (en) | 2018-08-31 | 2018-08-31 | High dynamic range short focus optical projection system |
Country Status (1)
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| CN (1) | CN109031878A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110769233A (en) * | 2019-09-27 | 2020-02-07 | 深圳市火乐科技发展有限公司 | Focusing method of double cameras of intelligent projector and related product |
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| CN1185081A (en) * | 1996-12-12 | 1998-06-17 | 三星电管株式会社 | Projection system with fluroescent screen |
| CN1482487A (en) * | 2002-09-14 | 2004-03-17 | 邱新萍 | Projecting color display |
| CN1924692A (en) * | 2005-09-02 | 2007-03-07 | 株式会社日立制作所 | Image display device |
| CN104122744A (en) * | 2013-04-26 | 2014-10-29 | 成都傲龙电子有限公司 | Positive projection integrated machine and reflective screen |
| CN105573024A (en) * | 2015-12-18 | 2016-05-11 | 深圳市帅映科技有限公司 | 4K projector |
| CN205594299U (en) * | 2016-05-04 | 2016-09-21 | 嘉兴市集美新材料科技有限公司 | Screen is thrown to anti light positive |
| CN107329360A (en) * | 2017-08-29 | 2017-11-07 | 成都菲斯特科技有限公司 | Orthographic projection printing opacity projection screen and optical projection system |
| WO2017198873A1 (en) * | 2016-05-20 | 2017-11-23 | Barco Nv | Direction selective projection display screen |
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| CN1185081A (en) * | 1996-12-12 | 1998-06-17 | 三星电管株式会社 | Projection system with fluroescent screen |
| CN1482487A (en) * | 2002-09-14 | 2004-03-17 | 邱新萍 | Projecting color display |
| CN1924692A (en) * | 2005-09-02 | 2007-03-07 | 株式会社日立制作所 | Image display device |
| CN104122744A (en) * | 2013-04-26 | 2014-10-29 | 成都傲龙电子有限公司 | Positive projection integrated machine and reflective screen |
| CN105573024A (en) * | 2015-12-18 | 2016-05-11 | 深圳市帅映科技有限公司 | 4K projector |
| CN205594299U (en) * | 2016-05-04 | 2016-09-21 | 嘉兴市集美新材料科技有限公司 | Screen is thrown to anti light positive |
| WO2017198873A1 (en) * | 2016-05-20 | 2017-11-23 | Barco Nv | Direction selective projection display screen |
| CN107329360A (en) * | 2017-08-29 | 2017-11-07 | 成都菲斯特科技有限公司 | Orthographic projection printing opacity projection screen and optical projection system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110769233A (en) * | 2019-09-27 | 2020-02-07 | 深圳市火乐科技发展有限公司 | Focusing method of double cameras of intelligent projector and related product |
| CN110769233B (en) * | 2019-09-27 | 2021-05-25 | 深圳市火乐科技发展有限公司 | Focusing method of double cameras of intelligent projector and related product |
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Application publication date: 20181218 |
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