CN205750258U - Based on 3DLP high brightness engineering scialyscope and the color-separation and color-recombination prism group of d-cinema projectors - Google Patents
Based on 3DLP high brightness engineering scialyscope and the color-separation and color-recombination prism group of d-cinema projectors Download PDFInfo
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- CN205750258U CN205750258U CN201620660265.9U CN201620660265U CN205750258U CN 205750258 U CN205750258 U CN 205750258U CN 201620660265 U CN201620660265 U CN 201620660265U CN 205750258 U CN205750258 U CN 205750258U
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Abstract
The utility model discloses a kind of based on 3DLP high brightness engineering scialyscope with the color-separation and color-recombination prism group of d-cinema projectors, white light is divided into R, G, B tri-coloured light project to respectively correspondence RGB DMD on, it is characterized in that, this color-separation and color-recombination prism group includes TIR prism group and Phillips prism group, and TIR prism group is placed in above Phillips prism group；It is smaller than 125mm between TIR prism group upper surface and Phillips prism group lower surface.This utility model can meet color-separation and color-recombination condition and carry out again Miniaturization Design.
Description
Technical field
The utility model discloses a kind of color separation for 3DLP high brightness engineering scialyscope and d-cinema projectors to close
Prism group, it is possible to the white light sent by light source is divided into RGB tri-coloured light and projects respectively on the RGB DMD of correspondence, then by DMD
The light beam combined color image of reflection, by projection lens projects to giant-screen.
Background technology
Digitized optical processing technique (Digital Lighting Processing, DLP) is American TI Company research and development
, at the bottom of nineteen ninety-five, first single-chip DLP projector with VGA resolution enters to be sold, and within 1997, starts entrance comprehensively and disappears
Take market.DMD (Digital Micro mirror Device, DMD) is made up of micro mirror array, and each micro mirror is just
It it is a display pixel.Can be by controlling this reflecting surface slightly with video signal, to reach to allow light enter projection lens light
Road also focuses on one pixel of formation on projection screen, or deviation projecting lens light path, closes the purpose of pixel.DMD has resolution
Rate is high, and signal is without advantages such as digital-to-analogue conversions, and growth momentum is swift and violent.
DLP projection display technique is the mainstream technology of current field of projection display, is broadly divided into single DLP projection display technique
With 3DLP projection display technique.Single DLP projector mainly includes light source, colour wheel, relay system, DMD and projection lens's first class sections,
By colour wheel energy light splitting；3DLP scialyscope mainly includes light source, color-separation and color-recombination prism, relay system, 3 DMD and projection lens,
Light splitting is carried out by color-separation and color-recombination prism.
3DLP projection display technique, had both had 3LCD technology advantage in terms of color separation, had possessed again DLP chip higher to light
Advantage in terms of utilization rate, is the coalition of two kinds of technology.White light is divided into redgreenblue, each DMD core by colour splitting prism
Sheet is responsible for one of which color, and the colourama of the micro mirror array reflection on DMD closes light through light-combining prism, throws through projection lens
Injection coloured image.3DLP projection display technique has the advantages such as high color reproduction degree, high-contrast, it is also possible to realizes other and throws
Shadow Display Technique is beyond one's reach luminance level.The highest scialyscope of at present brightness can reach more than 30000 lumens, all adopts
Be 3DLP projection display technique.
But in prior art, color-separation and color-recombination prism group volume is relatively big, adds the design difficulty of projection lens, can not
Meet the requirement of loss of weight.
Utility model content
The technical problems to be solved in the utility model is for color-separation and color-recombination prism group volume in prior art bigger
Defect, it is provided that a kind of small volume, can meet the color-separation and color-recombination prism group of loss of weight requirement.
This utility model solves its technical problem and be the technical scheme is that
This utility model provides a kind of color separation based on 3DLP high brightness engineering scialyscope and d-cinema projectors and closes
Prism group, white light is divided into R, G, B tri-coloured light project to respectively correspondence RGB DMD on, this color-separation and color-recombination
Prism group includes TIR prism group and Phillips prism group, and TIR prism group is placed in above Phillips prism group；
It is smaller than 125mm between TIR prism group upper surface and Phillips prism group lower surface.
Described in the utility model based on 3DLP high brightness engineering scialyscope and the color-separation and color-recombination rib of d-cinema projectors
In mirror group, the length of Phillips prism group lower surface is less than 80mm, and width is less than 28mm.
Described in the utility model based on 3DLP high brightness engineering scialyscope and the color-separation and color-recombination rib of d-cinema projectors
In mirror group, TIR prism group includes TIR prism one and the TIR prism two combined；Phillips prism group includes combining
Phillips prism one together, Phillips prism two and Phillips prism three.
Described in the utility model based on 3DLP high brightness engineering scialyscope and the color-separation and color-recombination rib of d-cinema projectors
In mirror group, described TIR prism one and TIR prism two are prism, and the angle at three angles of TIR prism one is respectively
49.76 °, 97.74 ° and 32.5 °, the angle at three angles of TIR prism two is respectively 90 °, 32.5 ° and 57.5 °.
Described in the utility model based on 3DLP high brightness engineering scialyscope and the color-separation and color-recombination rib of d-cinema projectors
In mirror group, described TIR prism one and TIR prism two are prism, and the angle at three angles of TIR prism one is respectively
50.72 °, 95.28 ° and 34 °, the angle at three angles of TIR prism two is respectively 84.72 °, 34 ° and 61.28 °.
Described in the utility model based on 3DLP high brightness engineering scialyscope and the color-separation and color-recombination rib of d-cinema projectors
In mirror group, Phillips prism one and Phillips prism two is prism, and described Phillips prism three is right-angled trapezium
Body prism；
The angle at three angles of described Phillips prism one is respectively 58 °, 29 ° and 98 °；
The angle at three angles of described Phillips prism two is respectively 37.5 °, 49 ° and 93.5 °；
The angle at the two of which angle of described Phillips prism three is respectively 80.5 ° and 99.5 °.
Described in the utility model based on 3DLP high brightness engineering scialyscope and the color-separation and color-recombination rib of d-cinema projectors
In mirror group, Phillips prism one and Phillips prism two is prism, and described Phillips prism three is right-angled trapezium
Body prism；
The angle at three angles of described Phillips prism one is respectively 60 °, 30 ° and 90 °；
The angle at three angles of described Phillips prism two is respectively 38.5 °, 47 ° and 94.5 °；
The angle at the two of which angle of described Phillips prism three is respectively 81.5 ° and 98.5 °.
Described in the utility model based on 3DLP high brightness engineering scialyscope and the color-separation and color-recombination rib of d-cinema projectors
In mirror group, the dichroic coating of the lower surface plating saturating red-green glow of anti-blue light of described Phillips prism one, Phillips prism two times
The anti-HONGGUANG of plated surface reveals the green the dichroic coating of light, the residue work surface plating visible ray anti-reflection film of TIR prism and Phillips prism.
Described in the utility model based on 3DLP high brightness engineering scialyscope and the color-separation and color-recombination rib of d-cinema projectors
In mirror group, the material of described TIR prism and Phillips prism is K9 glass.
This utility model produce provide the benefit that: color-separation and color-recombination prism group of the present utility model include TIR prism group and
Phillips prism group, TIR prism group is placed in above Phillips prism group；TIR prism group upper surface and Phillips prism
Group lower surface between be smaller than 125mm.Therefore this utility model can meet color-separation and color-recombination condition and carried out again miniaturization and set
Meter.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 this utility model embodiment TIR prism group schematic diagram；
Fig. 2 this utility model embodiment Phillips prism group schematic diagram；
Fig. 3 this utility model embodiment color-separation and color-recombination prism group schematic three dimensional views；
Fig. 4 this utility model embodiment color-separation and color-recombination prism group and the relative position view of RGB DMD；
Fig. 5 this utility model embodiment color-separation and color-recombination prism group ray tracing figure.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing and enforcement
Example, is further elaborated to this utility model.Should be appreciated that specific embodiment described herein is only in order to explain this
Utility model, is not used to limit this utility model.
Color-separation and color-recombination prism group is the core component in 3DLP projector optical engine, the white light that light source is sent be divided into R,
G, B tri-coloured light and project correspondence RGB DMD on, the video that three kinds of monochromatic light reflects through three DMD and carries on DMD
Signal is through prism arrangement color, then through projection lens, coloured image projects on giant-screen the most at last.Wherein R, G, B are trichroism
When light is propagated in Phillips prism, light path is identical, and R, G, B tri-coloured light incide the angle on DMD and be 24 °.
Color-separation and color-recombination prism group of the present utility model includes TIR prism group and Phillips prism group, table in TIR prism group
It is smaller than 125mm between face and Phillips prism group lower surface.Further, in an embodiment of the present utility model
The length of the lower surface of Phillips prism three is less than 80mm, and width is less than 28mm.The upper surface of TIR prism group is to Phillips
The spacing of the lower surface of prism group reduces under the conditions of meeting color-separation and color-recombination as far as possible, thus works after reducing when projection lens designs
Distance, the problem that design difficulty is big.
Wherein, TIR prism group utilizes total reflection principle to change the incident angle of light, and ensures the transmission of emergent light；
Phillips prism group is mainly used to be divided into white light R, G, B tri-coloured light projecting respectively on three DMD, and three coloured light
Incident angle meets the requirement of DMD, and three kinds of reflection of monochromatic lights are recombined colour in Phillips prism group by three DMD,
In TIR prism group, projection lens projects to giant-screen.
The length of Phillips prism group lower surface is less than 80mm, and width is less than 28mm, has both met color-separation and color-recombination condition
Carry out again Miniaturization Design.
As it is shown in figure 1, in the color-separation and color-recombination prism group of this utility model embodiment, TIR prism group includes combining
TIR prism one and TIR prism two；Phillips prism group includes Phillips prism one, the Phillips combined
Prism two and Phillips prism three.
The upper surface of Phillips prism one and the upper surface blue light to be met of Phillips prism two and HONGGUANG
Total reflection condition, all angles of Phillips prism one, two, three are calculated through precision, meet total reflection, aplanatism,
Color separation, conjunction color and the requirement to 24 ° of angle of incidence of the DMD micro mirror array.
In an embodiment of the present utility model, as it is shown in figure 1, TIR prism one and TIR prism two are prism, TIR
The angle 11 of prism one is 49.76 °, angle 12 is 97.74 °, angle 13 is 32.5 °.
The angle 14 of TIR prism two is 90 °, angle 15 is 32.5 °, angle 16 is 57.5 °.
Phillips prism one and Phillips prism two is prism, and described Phillips prism three is right-angled trapezium
Body prism；Corresponding DMD DMD is placed at face A, face B dough-making powder C.
The angle 21 of Phillips prism one is 58 °, angle 22 is 29 °, angle 23 is 98 °.
The angle 24 of Phillips prism two is 37.5 °, angle 25 is 49 °, angle 26 is 93.5 °.
The angle 27 of Phillips prism three is 80.5 °, angle 28 is 99.5 °.
The dichroic coating of the lower surface plating saturating red-green glow of anti-blue light of Phillips prism one, the lower surface of Phillips prism two
Plate anti-HONGGUANG to reveal the green the dichroic coating of light, the residue work surface plating visible ray anti-reflection film of TIR prism and Phillips prism.
The upper surface of TIR prism two is less than to the distance of the lower surface (i.e. the spacing of vertical direction) of Phillips prism three
125mm.The length of the lower surface of Phillips prism three is less than 80mm, and width is less than 28mm.
Formed by gluing between three pieces of Phillips prisms, in an embodiment of the present utility model, three pieces of prisms it
Between space only have 0.025mm, the glue of employing is high temperature resistant.
TIR prism and Phillips prism are all conventional optical glass material K9, and material cost is relatively low.
In an embodiment of the present utility model, as it is shown in figure 1, TIR prism one and TIR prism two are prism, TIR
The angle 11 of prism one is 50.72 °, angle 12 is 95.28 °, angle 13 is 34 °.
The angle 14 of TIR prism two is 84.72 °, angle 15 is 34 °, angle 16 is 61.28 °.
Phillips prism one and Phillips prism two is prism, and described Phillips prism three is right-angled trapezium
Body prism；
The angle 21 of Phillips prism one is 60 °, angle 22 is 30 °, angle 23 is 90 °.
The angle 24 of Phillips prism two is 38.5 °, angle 25 is 47 °, angle 26 is 94.5 °.
The angle 27 of Phillips prism three is 81.5 °, angle 28 is 98.5 °.
TIR prism shown in Fig. 1 and Fig. 2 and the sectional drawing that Phillips prism is two vertical direction.Light source sends
White light enters TIR prism through the plane of incidence of TIR prism, obtains upper surface at TIR prism one and is totally reflected, and from TIR prism
The lower surface transmission of one is gone out, and enters Phillips prism one, and the lower surface at Phillips prism one (is coated with anti-blue light the reddest
The dichroic coating of green glow) place is divided into blue light and gold-tinted, and blue light reflects, and is all-trans at the upper surface of Phillips prism one
Penetrate, in Phillips prism one side outgoing and project on blue light DMD30；Gold-tinted light beam is through Phillips prism one time
Surface transmission is in Phillips prism two, at Phillips prism two lower surface (be coated with anti-HONGGUANG reveal the green the dichroic coating of light) place
Being divided into HONGGUANG and green glow, HONGGUANG reflects, and is totally reflected at Phillips prism two upper surface, at Phillips prism
Two side faces outgoing also projects in HONGGUANG DMD40；Green beam is transmitted to through the lower surface of Phillips prism two
In Phillips prism three, and the lower surface through Phillips prism three projects on green glow DMD50, thus completes white light
Color separation.
Blue light DMD30 is by blu-ray reflection to Phillips prism one, and the upper surface at Phillips prism one occurs complete
Reflection is also reflected at the lower surface of Phillips prism one, from Phillips prism one outgoing, and enters TIR prism；Red
Light DMD40 by reflection to red light to Phillips prism two, the upper surface at Phillips prism two occur total reflection and
The lower surface of Phillips prism two reflects, and goes out to inject Phillips prism from the upper surface of Phillips prism two
One, TIR prism；Green glow DMD50 is by green reflection to Phillips prism three, and sequentially passes through Phillips prism two He
Phillips prism one, enters TIR prism, thus RGB three-beam completes to close color, forms coloured image.Coloured image passes through
TIR prism is transmitted into projection lens, and then projects on giant-screen.
The upper surface of the upper surface of TIR prism one, the upper surface of Phillips prism one and Phillips prism two to be expired
Foot total reflection condition, all angles of TIR prism one, two and Phillips prism one, two, three are calculated through precision, full
Foot color separation, conjunction color and the requirement of DMD micro mirror array.
It should be appreciated that for those of ordinary skills, can be improved according to the above description or be converted,
And all these modifications and variations all should belong to the protection domain of this utility model claims.
Claims (9)
1., based on 3DLP high brightness engineering scialyscope and a color-separation and color-recombination prism group for d-cinema projectors, white light is divided into
R, G, B tri-coloured light project to respectively correspondence RGB DMD on, it is characterised in that this color-separation and color-recombination prism group bag
Including TIR prism group and Phillips prism group, TIR prism group is placed in above Phillips prism group；
It is smaller than 125mm between TIR prism group upper surface and Phillips prism group lower surface.
The most according to claim 1 based on 3DLP high brightness engineering scialyscope and the color-separation and color-recombination rib of d-cinema projectors
Mirror group, it is characterised in that the length of Phillips prism group lower surface is less than 80mm, width is less than 28mm.
The most according to claim 1 based on 3DLP high brightness engineering scialyscope and the color-separation and color-recombination rib of d-cinema projectors
Mirror group, it is characterised in that TIR prism group includes TIR prism one and the TIR prism two combined；Phillips prism group
Including the Phillips prism one combined, Phillips prism two and Phillips prism three.
The most according to claim 3 based on 3DLP high brightness engineering scialyscope and the color-separation and color-recombination rib of d-cinema projectors
Mirror group, it is characterised in that described TIR prism one and TIR prism two are prism, the angle at three angles of TIR prism one is divided
Not being 49.76 °, 97.74 ° and 32.5 °, the angle at three angles of TIR prism two is respectively 90 °, 32.5 ° and 57.5 °.
The most according to claim 3 based on 3DLP high brightness engineering scialyscope and the color-separation and color-recombination rib of d-cinema projectors
Mirror group, it is characterised in that described TIR prism one and TIR prism two are prism, the angle at three angles of TIR prism one is divided
Not being 50.72 °, 95.28 ° and 34 °, the angle at three angles of TIR prism two is respectively 84.72 °, 34 ° and 61.28 °.
The most according to claim 3 based on 3DLP high brightness engineering scialyscope and the color-separation and color-recombination rib of d-cinema projectors
Mirror group, it is characterised in that Phillips prism one and Phillips prism two is prism, described Phillips prism three is
Right-angled trapezium body prism；
The angle at three angles of described Phillips prism one is respectively 58 °, 29 ° and 98 °；
The angle at three angles of described Phillips prism two is respectively 37.5 °, 49 ° and 93.5 °；
The angle at the two of which angle of described Phillips prism three is respectively 80.5 ° and 99.5 °.
The most according to claim 3 based on 3DLP high brightness engineering scialyscope and the color-separation and color-recombination rib of d-cinema projectors
Mirror group, it is characterised in that Phillips prism one and Phillips prism two is prism, described Phillips prism three is
Right-angled trapezium body prism；
The angle at three angles of described Phillips prism one is respectively 60 °, 30 ° and 90 °；
The angle at three angles of described Phillips prism two is respectively 38.5 °, 47 ° and 94.5 °；
The angle at the two of which angle of described Phillips prism three is respectively 81.5 ° and 98.5 °.
The most according to claim 3 based on 3DLP high brightness engineering scialyscope and the color-separation and color-recombination rib of d-cinema projectors
Mirror group, it is characterised in that the dichroic coating of the lower surface plating saturating red-green glow of anti-blue light of described Phillips prism one, Phillips rib
Anti-HONGGUANG of plating the lower surface of mirror two reveals the green the dichroic coating of light, the residue work surface plating visible ray of TIR prism and Phillips prism
Anti-reflection film.
The most according to claim 3 based on 3DLP high brightness engineering scialyscope and the color-separation and color-recombination rib of d-cinema projectors
Mirror group, it is characterised in that the material of described TIR prism and Phillips prism is K9 glass.
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| CN201620660265.9U CN205750258U (en) | 2016-06-28 | 2016-06-28 | Based on 3DLP high brightness engineering scialyscope and the color-separation and color-recombination prism group of d-cinema projectors |
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| CN201620660265.9U CN205750258U (en) | 2016-06-28 | 2016-06-28 | Based on 3DLP high brightness engineering scialyscope and the color-separation and color-recombination prism group of d-cinema projectors |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113900263A (en) * | 2021-09-14 | 2022-01-07 | 联想(北京)有限公司 | Color combination device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113900263A (en) * | 2021-09-14 | 2022-01-07 | 联想(北京)有限公司 | Color combination device |
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