CN110109319A - Augmented reality is adjustable transparent projection screen and projecting method and production method - Google Patents
Augmented reality is adjustable transparent projection screen and projecting method and production method Download PDFInfo
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- CN110109319A CN110109319A CN201910390557.3A CN201910390557A CN110109319A CN 110109319 A CN110109319 A CN 110109319A CN 201910390557 A CN201910390557 A CN 201910390557A CN 110109319 A CN110109319 A CN 110109319A
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- 239000010408 film Substances 0.000 claims abstract description 87
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 73
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/13338—Input devices, e.g. touch panels
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1334—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
-
- 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
-
- 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
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/22—Processes or apparatus for obtaining an optical image from holograms
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
Abstract
The invention discloses the adjustable transparent projection screen of augmented reality and projecting method and production method, which sequentially includes AG glass, line holographic projections film, PDLC tunable optical film, single-way perspective membrane and ultra-clear glasses.The projecting method is AG glass side towards projector, ultra-clear glasses side direction is outdoor, observer watches from AG glass side, the light that projector is launched is Polaroid in line holographic projections film, the light that projector is launched is in PDLC tunable optical film secondary imaging, when ultra-clear glasses side light is brighter, the mist degree of PDLC tunable optical film is adjusted, makes to observe drop shadow effect and transparent effect to optimum state.The production method is to paste line holographic projections film in AG glass surface, paste that single-way perspective membrane, optical component be integrated and optical module assembling on ultra-clear glasses surface.The present invention carries out Polaroid projected image using line holographic projections film, carries out secondary imaging using PDLC tunable optical film, secondary imaging is superimposed upon on Polaroid, while guaranteeing projection screen transparent effect, enhances imaging effect.
Description
Technical field
It is specifically a kind of to be used for the present invention relates to the adjustable transparent projection screen of augmented reality and projecting method and production method
In the case of natural light, realizes the adjustable transparent effect of outdoor scene augmented reality and the transparent projection screens of display effect, belong to increasing
Strong reality field of display technology.
Background technique
Augmented reality (Augmented Reality, abbreviation AR) is as people recent and that one period of future is important
Machine interaction and information display technology means, are widely used in civilian, commercial and military field, especially in Aeronautics and Astronautics, ocean work
The industries such as journey, petrochemical industry, communication, building, advertisement, game, Tourist Education, research and development application are in the ascendant.AR technology passes through
Dummy object that computer is generated, scene, system prompt information, or by the letter from a variety of awareness apparatus or detecting devices
Breath (being referred to as enhancement information above) is added in real scene, so that user obtains additional letter while watching outdoor scene picture
Breath, to realize the enhancing to reality.
Currently, AR technology is divided from display technology, it is mainly the following form: first is that through display system and note is worn
Form that volume (positioning that user's point of observation and computer generate dummy object) system combines is realized；Second is that passing through camera shooting dress
Admission outdoor scene is set, enhancement information is superimposed with, combination picture and information are shown by display screen to realize.Third is that passing through OLED, LCD
Equal liquid crystal transparents screen shows enhancement information, and realization later is superimposed with the true environment after screen.These types implementation exists at present
It realizes in effect there is many deficiencies, is very limited in practical applications.First way (wears display), and this mode is logical
Wear-type clamps (the generally helmet or mirror holder) is crossed, a small pieces eyeglass is fixed in short distance before observer, on eyeglass
Enhancement information is projected, after these information are superimposed with observer through the real world outdoor scene that eyeglass is seen, realizes that augmented reality is aobvious
Show effect, this display mode personal can only be worn, and device forms relative complex, higher cost, and comfort is (as produced after wearing
Poor display effect etc. in the case of raw spinning sensation, strong background light) aspect user experience is bad, it is mainly used in professional neck at present
Domain also has and is applied to commercial high-end field, but not extensively, the application in terms of the public and engineering is seldom；The second way (camera shooting
Display) though technology is relatively easy, and cost of implementation is low because various display screens be it is opaque, such display screen can only be in
The picture of existing camera intake, and the real world after screen cannot be presented simultaneously, it can not truly be superimposed enhancement information
With the picture of real world, and some performances for being limited by camera influence, and effect has a greatly reduced quality, though at present using more wide
It is general, but consumer electronics product simple application is focused primarily upon, few uses in terms of professional domain, the public and engineer application；
The third mode (transparent screen is shown) is superimposed enhancement information though realizing on real world, realizes that technology is complicated, at present certainly
That there is transparent screen technologies is not universal, with high costs for illuminating OLED screen, influenced by natural light, shield it is size-constrained (as at present
OLED screen dimensions is few, is difficult to customize) the problems such as, it is extremely restricted in actual development application；And it is widely used at present
In the LCD transparent screen of advertisement cabinet, though technology maturation, cheap, there is also outdoor scenes after having an X-rayed caused by multi-layer grating to produce
Raw ghost image and halation, the defect that no backlight causes screen display enhancement information dimness etc. that can not overcome can be only applied to the envelope such as advertisement cabinet
It in closed loop border, can not be applied in naturally open environment, therefore, this mode is in actual development application by very big at present
Limitation, mature product is not released.
Summary of the invention
To solve the above problems, the invention discloses a kind of adjustable transparent projection screen of augmented reality and projection sides
Method and production method, specific technical solution are as follows:
Augmented reality is adjustable transparent projection screen, including screen optical component, the screen optical component is from it towards projection
Instrument side to the AG glass that its opposite side successively includes seamless tiling docking, line holographic projections film, PDLC tunable optical film, it is unidirectional thoroughly
Depending on film and ultra-clear glasses, the Polaroid of projected image is carried out using line holographic projections film, it is sharp in this, as primary image, and again
Secondary imaging is carried out in PDLC tunable optical film with the projection ray of transmission, secondary imaging is superimposed upon on Polaroid, with enhancing
Imaging effect.
Further, reflectivity≤4% of the AG glass, light transmittance >=99%, PDLC tunable optical of line holographic projections film
Maximum transmission rate >=88% of film, maximum Unidirectional transparent rate >=60% of single-way perspective membrane, light transmittance >=92% of ultra-clear glasses,
Synthesis light transmittance >=47% of augmented reality is adjustable transparent projection screen.
Further, for the AG glass towards projector one side equipped with no glass infrared touch panel, the no glass is red
Outer touch screen includes infrared transmitter and infrared remote receiver, and the top of AG glass side and left side are provided with several rules and arrange
Infrared remote receiver is arranged in the infrared transmitter of cloth, opposite side, each infrared transmitter corresponds to an infrared remote receiver.It is described
The infrared ray of infrared transmitter transmitting is in black light frequency range.
It further, further include screen packaging part, the screen optical component is mounted on screen without glass infrared touch panel
In packaging part, screen packaging part is by screen optical component and without the encapsulation sealed around of glass infrared touch panel.
Further, the PDLC tunable optical film is connected with power supply line, and power regulator is arranged on the power line.
The method of augmented reality is adjustable transparent projection, this method is realized based on above-mentioned projection screen, is specifically included following
Operating procedure:
Step 1: installation projector and projection screen: the AG glass side of projection screen is towards projector, ultra-clear glasses side court
To outdoor, observer watches from AG glass side；
Step 2: adjusting the transparency of screen optical module: to the energization of screen optical module, by PDLC tunable optical film tune
To maximum pellucidity；
Step 3: projection imaging: the light that projector is launched is Polaroid in line holographic projections film, when outside ultra-clear glasses side
When portion's light is brighter, the mist degree of adjusting PDLC tunable optical film, the light that projector is launched secondary imaging on PDLC tunable optical film,
Drop shadow effect and transparent effect are observed to optimum state；
Step 4: perspective imaging: because of AG glass, line holographic projections film, PDLC tunable optical film, single-way perspective membrane and ultrawhite glass
Glass is pellucidity, and observer is able to observe that outdoor real scene, outdoor real scene and step 3 gained with eyes
Imaging fusion, into observer's sight；
Step 5: dynamic regulation: with the direction of outdoor light and the variation of intensity, adjusting the mist degree of PDLC tunable optical film,
Make to observe drop shadow effect and transparent effect to optimum state.
The method of augmented reality is adjustable transparent projection, this method is realized based on above-mentioned projection screen, when this projection screen is answered
When being used as the scene of two-sided perspective projection screen, working method are as follows: towards projector, screen is logical for the AG glass side of projection screen
Electricity, according to the strong and weak appropriateness adjustment PDLC tunable optical film mist degree of ambient light, the transparent state of PDLC tunable optical film.Observer at this time
It is watched from projection screen two sides, the superimposed image that the seen image of observer is Polaroid and secondary imaging is formed.Two sides imaging
Effect is better than the imaging effect only projected with line holographic projections film, therefore can watch in the case of high illumination indoors, and this
Point only cannot achieve with line holographic projections film is Polaroid.
The method of augmented reality is adjustable transparent projection, this method is realized based on above-mentioned projection screen, when this projection screen is answered
When being used as the scene of common projection screen, specifically there is the following two kinds projection pattern:
(1) just throw working method: the AG glass side of projection screen towards projector, screen can no power work, or be powered and adjust
To mist degree maximum rating, PDLC tunable optical film is in opaque state at this time, and observer watches from AG glass side, and seen image is
The superimposed image that Polaroid and secondary imaging is formed, the image are better than only using the imaging of line holographic projections film, therefore can be in room
It is watched in the case of interior high illumination, and this point only cannot achieve with line holographic projections film is Polaroid；
(2) rear-projection working method: the AG glass side of projection screen is set to rear-projection mode towards projector, and screen can be obstructed
Electricity work, or be powered and be adjusted to mist degree maximum rating, PDLC tunable optical film is in opaque state at this time, and observer is from ultra-clear glasses one
Side is watched, the image that the image seen is formed for secondary imaging, under such working method, needs ambient light illumination lower.
The preparation method of augmented reality is adjustable transparent projection screen, including following operating procedure:
Step 1: cleaning AG glass:
A. AG glass and ultra-clear glasses are cleaned with glass cleaner and distilled water,
B. the glass after cleaning is placed on Special shelf with cold wind drying or room temperature natural air drying；
Step 2: line holographic projections film is pasted in AG glass surface:
A. wet combining method is used in AG glass surface patch line holographic projections film, distilled water is first uniformly sprayed to AG glass one side,
Line holographic projections film is covered on AG glass water spray one side from surface with glue, is positioned,
B. line holographic projections film is rolled with rubber tire, excessive moisture and bubble is discharged, makes film and AG glass close adhesion,
C. it repairs and cuts extra line holographic projections film,
D. the AG glass after pad pasting is placed on Special shelf with cold wind drying or room temperature natural air drying；
Step 3: single-way perspective membrane is pasted on ultra-clear glasses surface:
A. on ultra-clear glasses surface, patch single-way perspective membrane uses wet combining method, and distilled water is first uniformly sprayed to ultra-clear glasses one
Face, single-way perspective membrane are covered on ultra-clear glasses water spray one side from surface with glue, are positioned,
B. single-way perspective membrane is rolled with rubber tire, excessive moisture and bubble is discharged, makes film and ultra-clear glasses close adhesion,
C. it repairs and cuts extra line holographic projections film,
D. the ultra-clear glasses after pad pasting are placed on Special shelf with cold wind drying or room temperature natural air drying；
Step 4: gluing:
A. the photosensitive shadowless glue of ultraviolet light is sprayed on the surface of line holographic projections film and patch single-way perspective membrane,
B. it will be stood in the coated face horizontal direction of line holographic projections film and patch single-way perspective membrane, to coated face in half solidification shape
State；
Step 5: optical component is integrated:
A. PDLC tunable optical film is clipped between line holographic projections film and the coated face for pasting single-way perspective membrane, is fixed with fixture, taken out
Bubble and primary solidification positioning is discharged with ultraviolet radiator from AG glass and the opposite irradiation simultaneously of ultra-clear glasses side in vacuum,
B. the optics integrated component of primary solidification is taken out, and repairs and cuts surplus glue,
C. again with ultraviolet radiator from AG glass and the opposite irradiation simultaneously of ultra-clear glasses side, solidify the photosensitive no shadow of ultraviolet light
Glue,
D. the optics integrated component after solidification is horizontally arranged, ageing treatment；
Step 6: optical module assembling:
A. it will be bonded in AG glass side with epoxy glue without glass infrared touch mask, and will form optics integration member,
B. sealant is applied in optics integration member surrounding end face,
C. optics integration member surrounding coats edge-wrapping adhesive band,
D., screen packaging part is installed.
The working principle of the invention is:
The present invention carries out the Polaroid of projected image using line holographic projections film, sharp in this, as primary image, and again
Secondary imaging is carried out in PDLC tunable optical film with the projection ray of transmission, secondary imaging is superimposed upon on Polaroid, with enhancing
Imaging effect.And the effect of secondary imaging is influenced by the mist degree of PDLC tunable optical film, mist degree is bigger, and the projection ray of transmission gets over
Few, diffusing reflection is more, and imaging effect is better, and vice versa.The mist degree of PDLC tunable optical film be it is stepless adjustable, this can root
It carries out artificial (or automatic) according to the light intensity of ultra-clear glasses side to adjust, when the light intensity of ultra-clear glasses side becomes larger
When, Polaroid effect can weaken, and need reinforcement, tune up the mist degree of PDLC tunable optical film at this time, and enhancing secondary imaging effect is made
For supplement, while the transparency of PDLC tunable optical film can decline with the increase of mist degree, be further suppressed with this from ultrawhite glass
The light (single-way perspective membrane quantitative weaken extraneous light intensity) that glass side enters is realized and is guaranteeing that screen centainly has an X-rayed
Under the preceding topic of property, integrated imaging effect is best.
The beneficial effects of the present invention are:
1. present invention perspective projection display mode realization can be directed through screen viewing to real world outdoor scene and
It is superimposed corresponding information or image on screen, the display problem of augmented reality is solved with the mode that transparent projection is shown.
2. solving the problems, such as that current perspective projection is only capable of that display is imaged under dark situation, can be thrown towards bright ring border single side
Shadow imaging, and can the transparency of stepless changing display screen and the clarity of imaging.
3. solving the imaging problem for having an X-rayed projection screen under backlight environment, in outdoor strong light, backlight and condition is shined upon
Under, can be achieved at the same time perspective and blur-free imaging, and can according to the transparency of the strong and weak stepless changing display screen of ambient light and at
The clarity of picture.
4. solving under different light conditions, the regulation problem of projection screen imaging effect is had an X-rayed.
5. being capable of two-way transparent and double-face imaging in compared with dark situation, as projection screen.
6. can be used as common projection screen to use, positive administration rear-projection is realized.
7. solving existing augmented reality display methods is not able to satisfy Special use demand sub-screen size, shape realization abnormity
The problem of, meet by according to the custom-sized perspective projection screen of customer requirement, opening when realizing from interior to from outdoor
The augmented reality for putting formula shows specific demand.
8. can be widely applied to the industries such as tourism, building, advertisement, communications and transportation, can be used in civilian, military domain,
Such as ship wheel house shows the augmented reality of water surface object (ship, beacon, navigation mark, islands and reefs), control room；Tourist attractions
Scenic outlook is shown towards the augmented reality of tourist.
Detailed description of the invention
Fig. 1 is exploded view of the invention,
Fig. 2 is longitdinal cross-section diagram of the invention (i.e. A-A to sectional view) in Fig. 1
Reference signs list: 1-without glass infrared touch panel, and 2-AG glass, 3-line holographic projections films, 4-PDLC are adjustable
Light film, 5-single-way perspective membranes, 6-ultra-clear glasses, 7-power supply lines, 8-screen packaging parts.
Specific embodiment
With reference to the accompanying drawings and detailed description, the present invention is furture elucidated.It should be understood that following specific embodiments are only
For illustrating the present invention rather than limiting the scope of the invention.
Embodiment 1:
The adjustable transparent projection screen of augmented reality of the present invention includes screen optical module, and screen optical module includes screen optics
Component, screen packaging part, without glass infrared touch panel.In conjunction with attached Fig. 1 and 2 as it can be seen that the adjustable transparent projection screen of this augmented reality from
The screen optical component of side to the other side successively includes AG glass 2, line holographic projections film 3, the PDLC of seamless tiling docking can
Light modulation film 4, single-way perspective membrane 5 and ultra-clear glasses 6, wherein 2 side of AG glass is towards projector, in use, from 2 side of AG glass
It is projected on towards projection screen, the Polaroid of projected image is carried out using line holographic projections film 3, in this, as primary image, and again
It is secondary to carry out secondary imaging in PDLC tunable optical film 4 using the projection ray penetrated, secondary imaging is superimposed upon on Polaroid, with
Enhance imaging effect.
PDLC tunable optical film 4 is connected with power supply line 7, and power regulator is arranged on power supply line 7.PDLC tunable optical film 4
According to the AC signal of different voltage and corresponding duty ratio, different mist degree and transparency is presented, when voltage be 0, duty ratio
It is maximum for 0, PDLC tunable optical film 4 mist degree, it is in opaque state, when voltage and duty ratio are a certain particular value, mist degree is minimum,
In most pellucidity, transparency about 88%, intermediate corresponding value corresponds to corresponding mist degree and transparency, meets dimming curve.?
In actual use, power supply can be disconnected when needing PDLC tunable optical film 4 opaque according to usage scenario, when needing PDLC
When tunable optical film 4 has certain transparency, voltage and duty ratio are adjusted by adjusting power regulator, to realize that adjusting PDLC is adjustable
The transparency of light film 4.
When external outdoor scene (i.e. 6 side of ultra-clear glasses), ambient light is excessively bright, especially backlight (the light of 6 one side of ultra-clear glasses
Line is excessively bright) when, since projector brightness of image and outdoor scene light luminance contrast decline, that is, when signal-to-noise ratio decline, observation
The projector image quality that person sees declines (mainly picture contrast decline), and projected image becomes unintelligible, at this point, unidirectionally
Perspective film 5 obstructs extraneous light, reduces the brightness of extraneous light, forms one opposite " dark situation ",
Promote signal-to-noise ratio；Meanwhile the mist degree that by adjusting power regulator, can change PDLC tunable optical film 4 (is to be dimmed by being promoted
Film mist degree reduces its translucency, allows the secondary imaging on light modulation film of more projection rays, and light modulation film mist degree is bigger, it is secondary at
Picture effect is better, and Polaroid is on line holographic projections film 3), Lai Zengqiang projection imaging effect, with PDLC tunable optical film 4
Mist degree increases, and can inhibit the light entered from ultra-clear glasses side, further promotes signal-to-noise ratio, enhances drop shadow effect.Mist degree mentions
Liter, which will also result in 4 light transmittance of PDLC tunable optical film and transparency, can decrease, but external outdoor scene is led to due to ambient light enhancing
The luminous flux for crossing optical component is still maintained at higher magnitude, and watching external outdoor scene to observer influences less.Therefore, by adjusting
Power regulator causes transparency and imaging effect to reach the optimum state of observer's approval (based on each observer's vision to image
Experience variant) inhibit backlight or the too strong influence of ambient brightness.
The present invention has no particular/special requirement to the thickness of each layer optical module of projection screen, and wherein Fig. 2 is also only each as expression
The sequence of layer, the thickness relationship being not limited between each layer, but to reach the object of the invention, to each layer light of projection screen
The some specific parameters for learning component require, such as reflectivity≤4% of AG glass 2, and the light transmittance of line holographic projections film >=
Maximum transmission rate >=88% of 99%, PDLC tunable optical film 4, maximum Unidirectional transparent rate >=60% of single-way perspective membrane 5, ultrawhite glass
Light transmittance >=92% of glass 6.
Existing projection screen is all by screen surfaces material (such as white coating, white cloth, superfine glass pearl) to projection
The light that instrument is launched carries out diffusing reflection, directly formation image, our this process is referred to as Polaroid.Present invention is mainly used for from compared with
Dark environment will take into account imaging effect and transparency to brighter environment perception, but be conflict between the two.Due to this hair
Environment used in bright be an open, environment light direction and intensity can continually changing environment (mainly from dark place to bright
Place's viewing), this is generally operational in the dark situation that an ambient light is stable and intensity is very low with existing projection screen and is very different.
In order to solve both of these problems, it may be assumed that 1, solve the problems, such as that imaging effect and transparency are taken into account, 2, adapt to open, radiation direction
With intensity can continually changing environment the problem of, by analysis, selection and design, develop the controllable secondary imaging skill of projection screen
Art.Projector light (makes to be that projector brightness is transferred to maximum), by AG glass 2, after about decaying 1%, in line holographic projections film 3
Upper imaging, this is Polaroid.One physical characteristic of line holographic projections film 3 is: while imaging, 99% light can be allowed logical
The problem of crossing, being taken into account which solves imaging effect and transparency.But the other physical characteristic of line holographic projections film 3 is: in light
In the bright environment of line, display quality can decline, image burnt hair, to solve this new problem, increase after line holographic projections film 3 single
One opposite " dark situation " is created to promote Polaroid effect to perspective film 5 (also referred to as half anti-film) for line holographic projections film 3.
In addition, the Polaroid effect of line holographic projections film 3 be it is cured, do not adapt to open, radiation direction and intensity can constantly become
Therefore the environment of change increases PDLC tunable optical film 4 after being close to line holographic projections film 3, allows through AG glass 2 and line holographic projections film 3
Projection ray in 4 re-imaging of PDLC tunable optical film, to enhance the Polaroid effect of line holographic projections film 3 after superposition.In order to
The problem of imaging effect is taken into account with transparency is taken into account, it is Polaroid to have can guarantee imaging effect when ambient light is darker, it will
PDLC tunable optical film 4 is tuned into minimal haze and maximum transparency state (transparency >=88%), increases as far as possible from ultra-clear glasses 6
Side enters the light of the real world of observer's eyes, and Polaroid effect can guarantee；When ambient light is brighter, pass through
The mist degree of PDLC tunable optical film 4 is turned up, reduces transparency, allows the diffusing reflection on PDLC tunable optical film 4 of more projection rays, with
It improves the effect of secondary imaging and is superimposed upon on Polaroid, while reduced transparency, prevent more from ultra-clear glasses 6 one
On the extraneous light to line holographic projections film 3 that side enters, increases the darkness of " dark situation ", further promote Polaroid effect, allow
These material properties, which are able to play and interact, generates new effect, and on PDLC tunable optical film 4 re-imaging mistake
The realization of journey is exactly core of the invention technology: " the controllable secondary imaging technology of projection screen " by this technology, solves suitable
Should open, radiation direction and intensity can continually changing environment the problem of.
When external environment light is darker, 4 transparency of PDLC tunable optical film is adjusted to highest, does not influence to observe the projection screen back side
Outdoor scene turn down 4 transparency of PDLC tunable optical film to a certain conjunction when external environment light brightens, that is, when light intensity increases
Just when, inhibition some light, but guarantee that the light intensity for entering observer's eyes is maintained to be not less than and enter when ambient light is darker
The luminous intensity of observer's eyes still can guarantee that this point is of the invention through the effect of projection screen observation real world outdoor scene
It has been verified in test.
Implement 2:
In order to increase overall feeling effect when present invention application, screen is installed in all screen optical module surroundings
Packaging part 8, screen packaging part 8 is by screen optical component and no glass infrared touch panel encapsulation sealed around.
Implement 3:
In order to increase human-computer interaction function of the present invention in practical application, AG glass 2 is equipped with towards projector one side
Without glass infrared touch panel 1.AG glass is towards projector one side equipped with no glass infrared touch panel, the no infrared touching of glass
Touching screen includes infrared transmitter and infrared remote receiver, and the top of AG glass side and left side are provided with several rule arrangements
Infrared remote receiver is arranged in infrared transmitter, opposite side, each infrared transmitter corresponds to an infrared remote receiver.It is described infrared
The infrared ray of transmitter transmitting is in black light frequency range.
Embodiment 4: practical application of the invention
1, when this patent projection screen is applied to the scene of strong light outside indoor weak light room
(1) the AG glass side of projection screen is towards projector, and ultra-clear glasses side is towards outdoor, and observer is from AG glass one
Side viewing；
(2) it is powered to screen optical module, PDLC tunable optical film is adjusted to maximum pellucidity；
(3) light that projector is launched is Polaroid in line holographic projections film, when ultra-clear glasses side extraneous light is brighter,
PDLC tunable optical film is transferred to certain mist degree by adjustment display effect adjuster, and the light that projector is launched is in PDLC tunable optical film
Secondary imaging is adjusted, makes to observe drop shadow effect and transparent effect to optimum state.
(4) with the variation in the direction of light and intensity, adjustment display effect adjuster makes to observe drop shadow effect and perspective
Effect is to optimum state.
2, when this patent projection screen is applied to complete indoor scene
This scene is generally used for monitoring room, and the course of work is as (1) of the 1st kind of applicable cases, (2), (3).Work as room
Interior low-light (level) room, it is Polaroid to can guarantee substantially；It, can be best to effect by adjusting secondary imaging when indoor high illumination room.
3, when this patent projection screen applies the scene as common projection screen
(1) just throw working method: the AG glass side of projection screen towards projector, screen can no power work (or be powered and adjust
To mist degree maximum rating), PDLC tunable optical film is in opaque state at this time, and observer watches from AG glass side, seen image
For the superimposed image that Polaroid and secondary imaging is formed, which is better than the imaging for only using line holographic projections film, therefore can be
It is watched in the case of indoor high illumination, and this point only cannot achieve with line holographic projections film is Polaroid；
(2) rear-projection working method: the AG glass side of projection screen is set to rear-projection mode towards projector, and screen can be obstructed
Electricity work (or be powered be adjusted to mist degree maximum rating), PDLC tunable optical film is in opaque state at this time, and observer is from ultra-clear glasses
Side is watched, the image that seen image secondary imaging is formed, and under such working method, needs ambient light illumination lower.
Embodiment 5: preparation method of the invention
The preparation method of augmented reality is adjustable transparent projection screen, including following operating procedure:
Step 1: cleaning AG glass:
A. AG glass and ultra-clear glasses are cleaned with glass cleaner and distilled water,
B. the glass after cleaning is placed on Special shelf with cold wind drying or room temperature natural air drying.
Step 2: line holographic projections film is pasted in AG glass surface:
A. wet combining method is used in AG glass surface patch line holographic projections film, distilled water is first uniformly sprayed to AG glass one side,
Line holographic projections film is covered on AG glass water spray one side from surface with glue, is positioned,
B. line holographic projections film is rolled with rubber tire, excessive moisture and bubble is discharged, makes film and AG glass close adhesion,
C. it repairs and cuts extra line holographic projections film,
D. the AG glass after pad pasting is placed on Special shelf with cold wind drying or room temperature natural air drying.
Step 3: single-way perspective membrane is pasted on ultra-clear glasses surface:
A. on ultra-clear glasses surface, patch single-way perspective membrane uses wet combining method, and distilled water is first uniformly sprayed to ultra-clear glasses one
Face, single-way perspective membrane are covered on ultra-clear glasses water spray one side from surface with glue, are positioned,
B. single-way perspective membrane is rolled with rubber tire, excessive moisture and bubble is discharged, makes film and ultra-clear glasses close adhesion,
C. it repairs and cuts extra line holographic projections film,
D. the ultra-clear glasses after pad pasting are placed on Special shelf with cold wind drying or room temperature natural air drying.
Step 4: gluing:
A. the photosensitive shadowless glue of ultraviolet light is sprayed on the surface of line holographic projections film and patch single-way perspective membrane,
B. it will be stood in the coated face horizontal direction of line holographic projections film and patch single-way perspective membrane, to coated face in half solidification shape
State.
Step 5: optical component is integrated:
A. PDLC tunable optical film is clipped between line holographic projections film and the coated face for pasting single-way perspective membrane, is fixed with fixture, taken out
Bubble and primary solidification positioning is discharged with ultraviolet radiator from AG glass and the opposite irradiation simultaneously of ultra-clear glasses side in vacuum,
B. the optics integrated component for taking out primary solidification, repairs and cuts surplus glue,
C. again with ultraviolet radiator from AG glass and the opposite irradiation simultaneously of ultra-clear glasses side, solidify the photosensitive no shadow of ultraviolet light
Glue,
D. the optics integrated component after solidification is horizontally arranged, ageing treatment.
Step 6: optical module assembling:
A. it will be bonded in AG glass side with epoxy glue without glass infrared touch mask,
B. sealant is applied in optics integration member surrounding end face,
C. optics integration member surrounding coats edge-wrapping adhesive band,
D., screen packaging part is installed.
The technical means disclosed in the embodiments of the present invention is not limited to the technical means disclosed in the above technical means, and further includes
Technical solution consisting of any combination of the above technical features.
Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (9)
1. augmented reality is adjustable transparent projection screen, which is characterized in that including screen optical component, the screen optical component from its
It successively include AG glass, the line holographic projections film, PDLC tunable optical of seamless tiling docking towards projector side to its opposite side
Film, single-way perspective membrane and ultra-clear glasses carry out the Polaroid of projected image using line holographic projections film, in this, as parent map
Picture, and again using penetrate projection ray PDLC tunable optical film carry out secondary imaging, by secondary imaging be superimposed upon once at
As upper, to enhance imaging effect.
2. the adjustable transparent projection screen of augmented reality according to claim 1, which is characterized in that the reflectivity of the AG glass
≤ 4%, maximum transmission rate >=88% of light transmittance >=99%, PDLC tunable optical film of line holographic projections film, single-way perspective membrane is most
Big Unidirectional transparent rate >=60%, light transmittance >=92% of ultra-clear glasses, the synthesis light transmittance of augmented reality is adjustable transparent projection screen
>=47%.
3. the adjustable transparent projection screen of augmented reality according to claim 1, which is characterized in that the AG glass direction projection
For instrument one side equipped with no glass infrared touch panel, the no glass infrared touch panel includes infrared transmitter and infrared remote receiver,
The top of AG glass side and left side are provided with the infrared transmitter of several rule arrangements, infrared receiver is arranged in opposite side
Device, each infrared transmitter correspond to an infrared remote receiver, and the infrared ray of the infrared transmitter transmitting is in black light
Frequency range.
4. the adjustable transparent projection screen of augmented reality according to claim 1, which is characterized in that it further include screen packaging part,
The screen optical component is mounted in screen packaging part without glass infrared touch panel, and screen packaging part is by screen optical component
And without the encapsulation sealed around of glass infrared touch panel.
5. the adjustable transparent projection screen of augmented reality according to claim 1, it is characterised in that the PDLC tunable optical film connects
It is connected to power supply line, and power regulator is set on the power line.
6. the method for augmented reality is adjustable transparent projection, which is characterized in that this method is based on described in any of the above-described claim
Projection screen is realized, specifically includes following operating procedure:
Step 1: installation projector and projection screen: the AG glass side of projection screen is towards projector, and ultra-clear glasses side is towards room
Outside, observer watches from AG glass side；
Step 2: adjusting the transparency of screen optical module: to the energization of screen optical module, PDLC tunable optical film being adjusted to most
Big pellucidity；
Step 3: projection imaging: the light that projector is launched is Polaroid in line holographic projections film, when ultra-clear glasses side exterior light
When line is brighter, the mist degree of PDLC tunable optical film, the light that projector is launched secondary imaging on PDLC tunable optical film, observation are adjusted
Drop shadow effect and transparent effect are to optimum state；
Step 4: perspective imaging: because AG glass, line holographic projections film, PDLC tunable optical film, single-way perspective membrane and ultra-clear glasses are equal
For pellucidity, observer is able to observe that outdoor real scene with eyes, outdoor real scene and step 3 it is resulting at
As fusion, into observer's sight；
Step 5: dynamic regulation: with the direction of outdoor light and the variation of intensity, adjusting the mist degree of PDLC tunable optical film, make to see
Drop shadow effect and transparent effect are examined to optimum state.
7. the method for augmented reality is adjustable transparent projection, which is characterized in that this method is based on described in any of the above-described claim
Projection screen realizes, when this projection screen is using scene as two-sided perspective projection screen, working method are as follows: the AG of projection screen
Glass side is powered towards projector, screen, according to the strong and weak appropriateness adjustment PDLC tunable optical film mist degree of ambient light, PDLC tunable optical
The transparent state of film, observer watches from projection screen two sides at this time, and the seen image of observer is Polaroid and secondary imaging
The superimposed image of formation, two sides imaging effect are better than the imaging effect only projected with line holographic projections film, therefore can be indoors
It is watched in the case of high illumination, and this point only cannot achieve with line holographic projections film is Polaroid.
8. the method for augmented reality is adjustable transparent projection, which is characterized in that this method is based on described in any of the above-described claim
Projection screen realizes, when this projection screen is using scene as common projection screen, specifically there is a following two kinds projection pattern:
(1) just throw working method: the AG glass side of projection screen towards projector, screen can no power work, or be powered and be adjusted to mist
Maximum rating is spent, PDLC tunable optical film is in opaque state at this time, and observer watches from AG glass side, and seen image is primary
The superimposed image that imaging and secondary imaging are formed, the image are better than only using the imaging of line holographic projections film, therefore can be high indoors
It is watched under light situation, and this point only cannot achieve with line holographic projections film is Polaroid；
(2) rear-projection working method: the AG glass side of projection screen is set to rear-projection mode towards projector, and screen can obstructed electrician
Make, or be powered and be adjusted to mist degree maximum rating, PDLC tunable optical film is in opaque state at this time, and observer sees from ultra-clear glasses side
It sees, the image that the image seen is formed for secondary imaging, under such working method, needs ambient light illumination lower.
9. the preparation method of augmented reality is adjustable transparent projection screen, which is characterized in that including following operating procedure:
Step 1: cleaning AG glass:
A. AG glass and ultra-clear glasses are cleaned with glass cleaner and distilled water,
B. the glass after cleaning is placed on Special shelf with cold wind drying or room temperature natural air drying；
Step 2: line holographic projections film is pasted in AG glass surface:
A. wet combining method is used in AG glass surface patch line holographic projections film, distilled water is first uniformly sprayed to AG glass one side, it is holographic
Projection film is covered on AG glass water spray one side from surface with glue, is positioned,
B. line holographic projections film is rolled with rubber tire, excessive moisture and bubble is discharged, makes film and AG glass close adhesion,
C. it repairs and cuts extra line holographic projections film,
D. the AG glass after pad pasting is placed on Special shelf with cold wind drying or room temperature natural air drying；
Step 3: single-way perspective membrane is pasted on ultra-clear glasses surface:
A. on ultra-clear glasses surface, patch single-way perspective membrane uses wet combining method, and distilled water is first uniformly sprayed to ultra-clear glasses one side,
Single-way perspective membrane is covered on ultra-clear glasses water spray one side from surface with glue, is positioned,
B. single-way perspective membrane is rolled with rubber tire, excessive moisture and bubble is discharged, makes film and ultra-clear glasses close adhesion,
C. it repairs and cuts extra line holographic projections film,
D. the ultra-clear glasses after pad pasting are placed on Special shelf with cold wind drying or room temperature natural air drying；
Step 4: gluing:
A. the photosensitive shadowless glue of ultraviolet light is sprayed on the surface of line holographic projections film and patch single-way perspective membrane,
B. it will be stood in the coated face horizontal direction of line holographic projections film and patch single-way perspective membrane, be in half curdled appearance to coated face；
Step 5: optical component is integrated:
A. PDLC tunable optical film is clipped between line holographic projections film and the coated face for pasting single-way perspective membrane, is fixed, is vacuumized with fixture,
With ultraviolet radiator from AG glass and the opposite irradiation simultaneously of ultra-clear glasses side, bubble and primary solidification positioning is discharged,
B. the optics integrated component of primary solidification is taken out, and repairs and cuts surplus glue,
C. again with ultraviolet radiator from AG glass and the opposite irradiation simultaneously of ultra-clear glasses side, solidify the photosensitive shadowless glue of ultraviolet light,
D. the optics integrated component after solidification is horizontally arranged, ageing treatment；
Step 6: optical module assembling:
A. it will be bonded in AG glass side with epoxy glue without glass infrared touch mask, and will form optics integration member,
B. sealant is applied in optics integration member surrounding end face,
C. optics integration member surrounding coats edge-wrapping adhesive band,
D., screen packaging part is installed.
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