CN104765155A - Virtual image display system - Google Patents

Virtual image display system Download PDF

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Publication number
CN104765155A
CN104765155A CN201510149337.3A CN201510149337A CN104765155A CN 104765155 A CN104765155 A CN 104765155A CN 201510149337 A CN201510149337 A CN 201510149337A CN 104765155 A CN104765155 A CN 104765155A
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CN
China
Prior art keywords
light
described
display system
image display
virtual image
Prior art date
Application number
CN201510149337.3A
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Chinese (zh)
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CN104765155B (en
Inventor
郭滨刚
赵九阳
徐和平
Original Assignee
郭滨刚
赵九阳
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Priority to CN201510149337.3A priority Critical patent/CN104765155B/en
Publication of CN104765155A publication Critical patent/CN104765155A/en
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Publication of CN104765155B publication Critical patent/CN104765155B/en

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Classifications

    • G02B30/26
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63JDEVICES FOR THEATRES, CIRCUSES, OR THE LIKE; CONJURING APPLIANCES OR THE LIKE
    • A63J13/00Panoramas, dioramas, stereoramas, or the like
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B27/00Other optical systems; Other optical apparatus
    • G02B27/18Other optical systems; Other optical apparatus for optical projection, e.g. combination of mirror and condenser and objective
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B21/00Projectors or projection-type viewers; Accessories therefor

Abstract

The invention relates to a virtual image display system. The virtual image display system comprises a machine body, a light-transmitting screen and an image source arranged in the machine body. The image source is used for generating a colored image and sending the colored image to the light-transmitting screen. The light-transmitting screen comprises a transparent substrate and an optical thin film arranged on the surface of the transparent substrate. The optical thin film has high reflectivity for colored image light generated by the image source and first environment light which has the same wavelength as the colored image light in the environment light. The optical thin film has high transmittance for second environment light. The second environment light is the environment light which does not meet the wavelength condition of the first environment light. The virtual image display system solves the technical problem that by means of an existing projection reflection type spectra vision system, viewers can hardly see clear and high contrast simulated holographic three-dimensional images which have the sense of reality and are fused with the environment sense. By means of the virtual image display system, observers can see true, clear, beautifully-colored, high-contrast and high-image-brightness virtual images which are formed in the air.

Description

A kind of virtual image display system

Technical field

The present invention relates to a kind of virtual image display system.

Background technology

Conventional projection be by image direct imaging in an opaque or transparent screen plane, be 2D flat image, there is no solid or holographic appreciation effect.Although existing part is used for the projection reflection-type phantom imaging system of large-scale stage, as patent CN 1294517C, CN1166210A, CN1035777A, the reflective viewing screen of its image light for reflective projection system used, all there is the special optical film with wavelength selectivity reflection characteristic corresponding to the luminescence of image source three look specific wavelength without preparation, therefore observer see by the quality of image of catoptric imaging poor (brightness and contrast low, color saturation is low), cannot obtain true to nature, clear, beautiful in colour, high-contrast, high image brilliance, thus there is the chromatic image of high degree of verisimilitude, thus be difficult to the image display enjoying solid true to nature and holographic impression.

Prior art is normally used is the reflectance coating system with wide range reflection characteristic, the reflection of its light for be one from comprise (420nm to 750nm) in most of visible-range, the light wave with wider continuous wavelength scope all reflected, can cause so blindly surround lighting and image light all being reflected, the deterioration of the final imaging display quality of image trimmed book body to be caused because of mixing in a large number of surround lighting, is difficult to allow that beholder sees clearly, high-contrast, plan that the is realistic and sense that gets integrated into environment really changes holographic three-dimensional image.

Summary of the invention

In order to solve existing projection reflection-type phantom imaging system be difficult to allow beholder see high-contrast clearly, plan that the is realistic and sense that gets integrated into environment really changes the technical matters of holographic three-dimensional image, the invention provides a kind of virtual image display system.

Technical solution of the present invention:

A kind of virtual image display system, its special character is: the image source comprising body, printing opacity screen and be arranged in body;

Described image source is for generation of chromatic image light and be sent on light transmission screen curtain;

Described printing opacity screen comprises transparency carrier and is arranged on the optical thin film on the surface of transparency carrier, in the chromatic image light that described optical thin film produces for image source and surround lighting, the first environment light identical with the wavelength of chromatic image light has high reflectance, have high permeability for second environment light, described second environment light is the surround lighting of the wavelength condition not meeting first environment light.

The chromatic image that above-mentioned image source produces only wavelength in one or more the mixing in second light and three light of wavelength at 420 ~ 490nm of 500 ~ 565nm of first light of 605 ~ 680nm, wavelength.

Above-mentioned optical thin film comprises reflection horizon, and described reflection horizon is have high reflectance to first environment light identical with the wavelength of chromatic image light in chromatic image light and surround lighting, has high permeability to second environment light.

Above-mentioned optical thin film also comprises the lens jacket be coated on reflection horizon, described lens jacket is Film Optics lens or Film Optics lens arra, and described Film Optics lens or Film Optics lens arra are used for being modulated to chromatic image light or surround lighting the characteristic of dispersing or converging changing light in its light path.

Above-mentioned Film Optics lens are Fresnel lens, and described Film Optics lens arra is array of fresnel lenses.

The material of above-mentioned transparency carrier is clear glass, crystalline ceramics or inorganic dielectric material or transparent organic compound; The thickness of described transparency carrier is 0.01mm ~ 500mm.

Above-mentioned crystalline ceramics or inorganic dielectric material comprise transparent alumina, sintering white fused alumina, magnesium oxide, beryllia, yttria, yttria-zirconium dioxide, gallium arsenide, zinc sulphide, zinc selenide, magnesium fluoride or calcium fluoride.

Above-mentioned transparent organic material comprises PMMA, PC, PS, PET, PETG, transparent ABS, transparent PP, transparent PA, SAN, MS, MBS, PES, J.D series of optical resin, CR-39, TPX, HEMA, F4, F3, EFP, PVF, PVDF, EP, PF, UP, cellulose acetate, cellulose nitrate or EVA;

Described PES is polyethersulfone; Described J.D series of optical resin is the copolymerization derivative of PES; SAN is styrene/acrylonitrile copolymer, and TPX is poly-Methyl-1-pentene, and BS is 25% butadiene/75% styrol copolymer, and CR-39 is diallyl diglycol carbonate ester polymer, and HEMA is poly-squeak base hydroxy-ethyl acrylate.

Above-mentioned reflection horizon is thickness in the combination of the coat of metal of 5nm ~ 1000nm or particle diameter one deck that to be the nano metal particles coating of 5nm ~ 500nm or thickness be in the dielectric substance coating of 5nm ~ 1000nm or multilayer.

The material of the above-mentioned coat of metal is one or more the mixing in aluminium, silver, gold, copper, chromium, platinum and rhodium; The material of described dielectric substance coating is one or more the mixing in silicon monoxide, magnesium fluoride, silicon dioxide, alundum (Al2O3), sintering white fused alumina, magnesium oxide, beryllia, yttria, yttria-zirconium dioxide, gallium arsenide, zinc sulphide, zinc selenide, calcium fluoride.

The advantage that the present invention has:

The present invention can allow observer see virtual image true to nature, clear, beautiful in colour, high-contrast, high image brilliance, imaging aloft, this image can combine together with environment effectively, allow beholder not use the auxiliary of any anaglyph spectacles, namely bore hole can be observed the image display with three-dimensional and holographic impression.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention;

Fig. 2 be surround lighting through printing opacity screen through schematic diagram;

Fig. 3 is the principle of work schematic diagram in the reflection horizon of optical thin film;

Fig. 4 is the principle of work schematic diagram of the lens jacket of optical thin film;

Wherein Fig. 4 a is for converging schematic diagram; Fig. 4 b is for dispersing schematic diagram;

Wherein Reference numeral is: 1-image source, 2-printing opacity screen, 3-optical thin film, the imaging of 4-space virtual.

Embodiment

As shown in Figure 1, the structural representation of a kind of virtual image display system of the present invention, the image source 1 comprising computer control system, video signal interface, body, printing opacity screen 2 and be arranged in body; Computer control system is connected with image source 1 by video signal interface.Image source 1 is for generation of chromatic image light and be sent on light transmission screen curtain; The surface of printing opacity screen 2 is provided with optical thin film 3, in the chromatic image light that optical thin film 3 produces for image source and surround lighting, the first environment light identical with the wavelength of chromatic image light has high reflectance, have high permeability for the second environment light different from the wavelength of chromatic image light, second environment light is the surround lighting of the condition not meeting first environment light.As shown in Figure 2, the wide component permeate of the physical environment of continuous spectrum.

Image source 1 comprises one by three look specific wavelengths luminescences: the chromatic image formed of red (605 ~ 680nm), green (500 ~ 565nm), blue (420 ~ 490nm); The above-mentioned chromatic image luminescence with specific wavelength feature outputs in the light path of setting and goes by one or more image source;

Optical thin film comprises reflection horizon, and reflection horizon is have high reflectance to first environment light identical with the wavelength of chromatic image light in chromatic image light and surround lighting, has high permeability to second environment light.

In order to the distance of space virtual imaging can be adjusted, optical thin film also comprises the lens jacket be coated on reflection horizon, described lens jacket comprises transparency carrier and arranges Film Optics lens on the transparent substrate or Film Optics lens arra, and Film Optics lens or Film Optics lens arra are used for being modulated to chromatic image light or surround lighting the characteristic of dispersing or converging changing its light path.Such as when Film Optics lens are that when using Fresnel lens, described Film Optics lens arra is array of fresnel lenses.

The material of printing opacity screen is clear glass, crystalline ceramics, transparent organic compound or polymkeric substance or monocrystalline; The thickness of printing opacity screen is 0.01mm ~ 500mm.

The chromatic image that image source produces only wavelength in one or more the mixing in the green glow and the blue light of wavelength at 420 ~ 490nm of 500 ~ 565nm of the ruddiness of 605 ~ 680nm, wavelength.

This rete for reflect from image source send by specific wavelength, as red (605 ~ 680nm), green (500 ~ 565nm), blue (420 ~ 490nm), the chromatic image light be mixed to form; Film Optics lens or Film Optics lens arra in addition, as Fresnel lens or array of fresnel lenses, this Film Optics lens combination can be modulated to imaging or surround lighting the characteristic of dispersing or converging changing its light path.The image that image source sends is only by specific wavelength, and as red (605 ~ 680nm), green (500 ~ 565nm), blue (420 ~ 490nm), single or mixing sends formed chromatic image light.The image that image source sends is only by specific wavelength, and as red (605 ~ 680nm), green (500 ~ 565nm), blue (420 ~ 490nm), single or mixing sends formed chromatic image light.Printing opacity screen is the material of hard or flexible base, board make with to(for) visible transparent, thickness is 0.01mm ~ 500mm, material is clear glass, (as transparent alumina, the oxidic transparents such as sintering white fused alumina, magnesium oxide, beryllia, yttria, yttria-zirconium dioxide are ceramic for crystalline ceramics.Or Non-oxide Transparent Ceramics is as gallium arsenide, zinc sulphide, zinc selenide, magnesium fluoride, calcium fluoride etc.), transparent organic compound or the transparent material such as polymkeric substance or monocrystalline, wherein transparent organic material mainly comprises: PMMA, PC, PS, PET, PETG, transparent ABS, transparent PP, transparent PA, SAN (also known as AS), (also known as K resin), MS, MBS, PES, J.D series, CR-39, TPX, HEMA, F4, F3, EFP, PVF, PVDF, EP, PF, UP, cellulose acetate, cellulose nitrate and EVA etc.Wherein PES is polyethersulfone, J.D series of optical resin is the copolymerization derivative of PES, SAN is styrene/acrylonitrile copolymer, TPX is poly-Methyl-1-pentene, BS is 25% butadiene/75% styrol copolymer, CR-39 is diallyl diglycol carbonate ester polymer, and HEMA is poly-squeak base hydroxy-ethyl acrylate.In these transparent organism, that the most frequently used is PC, PMMA, PS, PET, PETG, AS, BS, MS, MBS, transparent ABS, transparent PP and transparent PA etc.

Reflection horizon: comprise by the coat of metal of the thickness of at least one deck at 5nm ~ 1000nm, or particle diameter is the nano metal particles coating (material is as aluminium, silver, gold, copper, chromium, platinum, rhodium etc.) of 5nm ~ 500nm, or thickness is the dielectric substance coating (material is as silicon monoxide, magnesium fluoride, silicon dioxide, alundum (Al2O3) etc.) of 5nm ~ 1000nm.The thickness of every layer of dielectric substance coating and the wavelength of reflected light have certain proportion relation.

Such as, the single coat of metal can realize the high reflectance of light in broad spectral range; The compound of metallics coating and dielectric substance coating can realize the high reflectance of the light in a wavelength range; Single nano metal particles coating utilizes surface plasma light wave resonance effect can realize scattering for the light of specific wavelength and refraction; MULTILAYER COMPOSITE thin dielectric film coating can realize the high reflectance for special wavelength light;

Reflecting film structure one example of certain specific wavelength: reflection multilayer membrane structure is made up of at least trilamellar membrane, every tunic is formed by the nano metal ion plating of different size form, and what can obtain > more than 45% reflectivity to the light wave generation strong scattering effect in particular range of wavelengths has specific wavelength optionally high reflectivity film feature.

Reflecting film structure one example of certain specific wavelength: reflection multilayer membrane structure replaces evaporation by two kinds of materials of high and low refractive index, and the thickness of every tunic is 1/4th of certain specific wavelength.Participate in the reflected light vector on each interface of superposition under this condition, direction of vibration is identical.Increase along with the film number of plies increases by the radiative net amplitude of this specific wavelength, and the final high reflectance effect formed for this special wavelength light, theoretical reflectance rate can close to 100%.As shown in Figure 3.

Thin film lens example: thin film lens can be the array structure that single Fresnel Lenses or a plurality of Fresnel Lenses are formed, or the array structure that a plurality of liquid crystal lens is formed.This Film Optics lens combination can be modulated to imaging or surround lighting the characteristic of dispersing or assembling changing its light path.Thus the modulation of virtual image forming size and Depth of field can be realized, as shown in Figure 4, wherein Fig. 4 a is for converging schematic diagram; Fig. 4 b is for dispersing schematic diagram.

Principle of work of the present invention:

Printing opacity screen is arranged in the transmission light path of image luminescence, the preparation of this printing opacity screen surface has the film of various different optical function, this optical thin film 3 is made up of the film of multilayer difference in functionality, be respectively used to the transport property of modulating chromatic image light and the external environmental light transmitted in the optical path, after the modulation of transmission light in this optical thin film 3 pairs of light paths, three look image light of the specific wavelength that image source 1 sends by be reflected according to setting light path by optical thin film or reflect most in the eye of beholder, possesses the surround lighting transmission in the optical path of continuous spectrum feature simultaneously, remove outside aforementioned particular range of wavelengths, the surround lighting of its commplementary wave length then can have the aforementioned printing opacity screen with the optical thin film selecting wavelength reflection feature through preparation smoothly, make the observer before being positioned at printing opacity screen can observe the gorgeous space virtual imaging of the aerial generation clear color of the certain distance in aforementioned light transmission screen backstage side, this space virtual imaging is not to be presented on printing opacity screen or on other carrier surfaces in kind, but be presented at aerial and combine together with background environment, therefore in observer's eye, this image is provided with the indicating characteristic of certain stereopsis or hologram, printing opacity screen can be the plastics screen of flexible, or rigid glass screen.

Claims (10)

1. a virtual image display system, is characterized in that: the image source comprising body, printing opacity screen and be arranged in body;
Described image source is for generation of chromatic image light and be sent on light transmission screen curtain;
Described printing opacity screen comprises transparency carrier and is arranged on the optical thin film on the surface of transparency carrier, in the chromatic image light that described optical thin film produces for image source and surround lighting, the first environment light identical with the wavelength of chromatic image light has high reflectance, have high permeability for second environment light, described second environment light is the surround lighting of the wavelength condition not meeting first environment light.
2. virtual image display system according to claim 1, is characterized in that: the chromatic image that described image source produces only wavelength in one or more the mixing in second light and three light of wavelength at 420 ~ 490nm of 500 ~ 565nm of first light of 605 ~ 680nm, wavelength.
3. virtual image display system according to claim 1 and 2, it is characterized in that: described optical thin film comprises reflection horizon, described reflection horizon is have high reflectance to first environment light identical with the wavelength of chromatic image light in chromatic image light and surround lighting, has high permeability to second environment light.
4. virtual image display system according to claim 3, it is characterized in that: described optical thin film also comprises the lens jacket be coated on reflection horizon, described lens jacket is Film Optics lens or Film Optics lens arra, and described Film Optics lens or Film Optics lens arra are used for being modulated to chromatic image light or surround lighting the characteristic of dispersing or converging changing light in its light path.
5. virtual image display system according to claim 4, is characterized in that: described Film Optics lens are Fresnel lens, and described Film Optics lens arra is array of fresnel lenses.
6. virtual image display system according to claim 5, is characterized in that: the material of described transparency carrier is clear glass, crystalline ceramics or inorganic dielectric material or transparent organic compound; The thickness of described transparency carrier is 0.01mm ~ 500mm.
7. virtual image display system according to claim 6, is characterized in that: described crystalline ceramics or inorganic dielectric material comprise transparent alumina, sintering white fused alumina, magnesium oxide, beryllia, yttria, yttria-zirconium dioxide, gallium arsenide, zinc sulphide, zinc selenide, magnesium fluoride or calcium fluoride.
8. virtual image display system according to claim 7, is characterized in that: described transparent organic compound comprises one or more the combination in PMMA, PC, PS, PET, PETG, transparent ABS, transparent PP, transparent PA, SAN, MS, MBS, PES, J.D series of optical resin, CR-39, TPX, HEMA, F4, F3, EFP, PVF, PVDF, EP, PF, UP, cellulose acetate and cellulose nitrate or EVA;
Described PES is polyethersulfone; Described J.D series of optical resin is the copolymerization derivative of PES; SAN is styrene/acrylonitrile copolymer, and TPX is poly-Methyl-1-pentene, and BS is 25% butadiene/75% styrol copolymer, and CR-39 is diallyl diglycol carbonate ester polymer, and HEMA is poly-squeak base hydroxy-ethyl acrylate.
9. virtual image display system according to claim 8, is characterized in that: described reflection horizon is thickness in the combination of the coat of metal of 5nm ~ 1000nm or particle diameter one deck that to be the nano metal particles coating of 5nm ~ 500nm or thickness be in the dielectric substance coating of 5nm ~ 1000nm or multilayer.
10. virtual image display system according to claim 9, is characterized in that: the material of the described coat of metal is one or more the mixing in aluminium, silver, gold, copper, chromium, platinum and rhodium; The material of described dielectric substance coating is one or more the mixing in silicon monoxide, magnesium fluoride, silicon dioxide, alundum (Al2O3), sintering white fused alumina, magnesium oxide, beryllia, yttria, yttria-zirconium dioxide, gallium arsenide, zinc sulphide, zinc selenide, calcium fluoride.
CN201510149337.3A 2015-03-31 2015-03-31 A kind of virtual image shows system CN104765155B (en)

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CN201510149337.3A CN104765155B (en) 2015-03-31 2015-03-31 A kind of virtual image shows system
JP2017560867A JP2018514000A (en) 2015-03-31 2016-03-30 Virtual image display system
PCT/CN2016/077826 WO2016155622A1 (en) 2015-03-31 2016-03-30 Virtual image display system

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WO2016155622A1 (en) 2016-10-06
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