CN103809365B - True three-dimensional image display systems and true three-dimensional image display method - Google Patents

Abstract

The present invention relates to a kind of true three-dimensional image display systems and true three-dimensional image display method, for K 3-D view correspondence being projected in K visual field.Wherein system includes: at least one image source, generates multiple hologram image light beam, and each hologram image light beam has the image information of the H row pixel of 3-D view, and each hologram image light beam includes N*K row pixel；Optical compression device, compresses each hologram image light beam to form narrow hologram image light beam, and each narrow hologram image light beam includes N row view field image light beam, and each column view field image light beam includes K row pixel；Hologram screen, including diffraction element, receives each narrow hologram image light beam and the K row pixel in wherein each row view field image light beam is diffracted in K visual field through its each imaging point；Optical scanner, by the scanning of each narrow hologram image light beam to corresponding diffraction element.The present invention can realize the display of true 3-D view and have high-resolution.

Description

True three-dimensional image display systems and true three-dimensional image display method

Technical field

The present invention relates to image display technology, particularly relate to a kind of true three-dimensional image display systems and true three Dimension method for displaying image.

Background technology

So-called " true three dimensional display " refers to the relative position relation between the three-dimensional body being shown also Embodied truly, constituted three-dimension space image truly, have the actual physical degree of depth and The surface characteristic of picture quality, observer need not any auxiliary equipment and just can appoint from multiple directions Meaning observes shown object, the three-dimensional information that perception is the truest, complete.True three-dimension display technlolgies from Fundamentally have updated the concept that image shows, the image making display is life-like, provides to beholder Complete psychological and physiological three-dimensional perception information, for understand 3-D view and wherein object it Between spatial relationship provide uniqueness means.

The unique features that hologram image shows is to utilize optical interference, by medium recording and reappear light All field information of ripple, including a phase, amplitude, wavelength.Therefore, people are made to watch holographic aobvious Show it is to obtain and the viewing identical visual effect of actual object.

Figure 13 provides a very simple holographic display mechanism.Again with consistent with former reference light again Existing laser lighting hologram, obtains and the former on all four reproduction of record object light in hologram plane Light.This need to ensure that between reference wave and object wave, frequency and phase relation are fixing.Select a conjunction Suitable angles of display can eliminate unwanted pattern.

Naturally scene can be counted as the set of multiple point source.Each point on object can be seen Make a point source, launch spherical wave.As Figure 13 provides the interference between object wave and coherent wave. This interference just creates interference fringe picture on recording materials.

General light wave is described with position mutually by its frequency, amplitude, can use following 4 dimension formula of time space field are expressed:

I (r, t)=f^** f=| f (r, t) |²(1)

$f(r,t)=\∫{\∫}_0^{\mathrm{\∞}}F(k,v)e^{j2\mathrm{\π}(-k\·r+vt)}dkdv---\left(2\right)$

Formula in light field:

I (k, ν)=F^** F=| F (k, ν) |²(3)

$F(k,v)=\∫{\∫}_0^{\mathrm{\∞}}f(r,t)e^{-j2\mathrm{\π}(-k\·r+vt)}drdt---\left(4\right)$

Wherein, r is three dimensions vector

R2=x²+y²+z², andx=r cos (α), y=r cos (β), z=r cos (γ) (5)

K is photon spread vector:

$k=1/\mathrm{\λ},k^2=k_x^2+k_y^2+k_z^2,and{k}_x=k\cos \left(\mathrm{\α}\right),k_y=k\cos \left(\mathrm{\β}\right),k_z=k\cos \left(\mathrm{\γ}\right)---\left(6\right)$

(α, beta, gamma) be cartesian coordinate system (x, y, z) in vector orientation angle.

In traditional hologram, light wave is not time-varying, and the wavelength of light is monochromatic.Therefore We by four-dimension Fourier equation simplification to three dimensional form:

In time space field:

I (r)=f^** f=| f (r) |²(7)

$f\left(r\right)={\∫}_0^{\mathrm{\∞}}F(k_0,v)e^{j2\mathrm{\π}(-k_0\·r)}{\mathrm{dk}}_0---\left(8\right)$

In light field:

I (k0)=F^** F=| F (k0) |²(9)

$F\left(k_0\right)={\∫}_0^{\mathrm{\∞}}f\left(r\right)e^{-j2\mathrm{\π}(-k_0\·r)}dr---\left(10\right)$

Wherein, k0=1/ λ 0.K0 is the specification vector only characterizing direction political reform.Therefore, formula 9 is given Light wave function f (r) gone out is the single color plane ripple in a series of all directions Superposition.Formula 11 provides the Fourier of light wave function f (r) and converts.

In view of two monochromatic interference, we define reference wave is f1 (r), and object wave is f2 (r)

$f_2\left(r\right)=f_{20}{e}^{-j2\mathrm{\π}(r/\mathrm{\λ}-{\mathrm{\φ}}_2(r\left)\right)}$

$f_2\left(r\right)=f_{20}{e}^{-j2\mathrm{\π}(r/\mathrm{\λ}-{\mathrm{\φ}}_2(r\left)\right)}---\left(11\right)$

Wherein, Φ is the radial direction position phase of light wave: 0≤Ф i (x, y)≤2 π.The light of wavefront It is by force the relevant results of two monochromic beams, is expressed as:

I (r)=| f10 | 2+ | f20 | 2+2f10f20cos (φ i (r)+φ k (r)) (12)

Actual light field distribution is made up of three parts.Section 1 is the self-interference of thing itself, when from two The light of individual object point scattering produces interferes, and the spatial distribution of light field will change.Generate at computer During holographic (CGH) calculates, in this mode is not included in.Section 2 is the light intensity of reference wave, table Show the most constant a kind of skew, make light intensity increase by holography.In CGH, corresponding is inclined Shifting can not considered, because CGH is normalized calculating the most at last.Section 3 is object wave and reference Being concerned with of ripple.Coherent fringe comprises required holographic information, has enough had image reconstruction.

Once recording materials are exposed at the light swash consistent with former reference wave, such as Figure 14, each The most reproducible original wavefront of individual coherent fringe, be the most seemingly original light field difference launch one Sample.The fusion of these wavefront is reconstructed the true 3-D view of whole scene.

Produce if hypotheses three dimensional display is horizontal disparity, the most just say that each unit is holographic Vertical line does not the most have dependency, and final three dimensional display has the mobile parallax of horizontal direction (HPO), but there is no the mobile parallax on vertical direction.Unit holographic line by light along a level Tangent plane diffraction is gone out, and formation can characterize three-dimensional image in (x, z) picture point on horizontal section.Figure In 15, fan beam represents the unique character of HPO three-dimensional display system.One width three-dimensional image is permissible Think by (x, z) the two dimension slicing composition on face of the generation of a pile holographic line diffraction.To each y value Calculate a series of holographic line, just can complete whole CGH and calculate.

Three-dimensional image also can be regarded as the integrated of self luminous point a series of by us, coordinate use (Xp, Yp, Zp) represent.Every bit is owned by real amplitude ap and is worth ф p with position mutually.Putting down of amplitude Side (ap) 2 is directly proportional to the brightness of this point, and position phase ф p is then relevant to reference wave.Hologram is put down Face is on z=0 face, then the vertical direction unit hits (pi tch) of HPO hologram is generally Every millimeter of several line pair.

From the point of view of from spectrum, the basic interference fringe of each spectral line is double gauss curve, is equivalent to One band filter, can be calculated.For every ginsengs such as given sampling interval and display parameters The situation of number, resolving of interference fringe can use following Convolution Formula to express:

$\[Fringe\]=\left[\begin{array}{cccc}{h}_1& h_2& \mathrm{...}& h_N\end{array}\right]\left[\begin{array}{c}{B}_1\\ B_2\\ .\\ .\\ .\\ B_N\end{array}\right]---\left(14\right)$

The most how to utilize above-mentioned principle, use suitable display system and method to obtain very three-dimensional aobvious Show that effect is the problem that those skilled in the art study.

Summary of the invention

Brief overview about the present invention given below, in order to provide about some of the present invention The basic comprehension of aspect.Should be appreciated that this general introduction is not that the exhaustive about the present invention is summarized. It is not intended to determine the key of the present invention or pith, is not the intended limitation present invention Scope.Its purpose is only to provide some concept in simplified form, in this, as discuss after a while Preamble in greater detail.

One main purpose of the present invention is that providing a kind of can reach the true of true three dimensional display effect Three-dimensional image display systems and true three-dimensional image display method.

For achieving the above object, the invention provides a kind of true three-dimensional image display systems, for by K Individual 3-D view correspondence is projected in K visual field, including:

At least one image source, for generating multiple hologram image light beams with default sequential, each Hologram image light beam has the image information of the H row pixel of each 3-D view, each hologram image light Bundle includes N*K row pixel；

Optical compression device, is arranged on the emitting light path of at least one image source, for each entirely The horizontal width of breath image beam is compressed being formed narrow hologram image light beam, each narrow entirely Breath image beam includes N row view field image light beam, and each column view field image light beam includes corresponding respectively to K The K row pixel of individual visual field；

Hologram screen, including L diffraction element, each diffraction element covers the N row of hologram screen Location of pixels, each diffraction element is used for receiving each narrow hologram image light beam according to default sequential, And the K row pixel in each row view field image light beam in the narrow hologram image light beam that will receive is respectively It is diffracted into K in the N row location of pixels correspondence of described hologram screen through corresponding described diffraction element In visual field；

Optical scanner, for by corresponding to hologram screen for the scanning of each narrow hologram image light beam Diffraction element,

Wherein, H, N, K, L are the integer not less than 1.

For achieving the above object, present invention also offers another kind of true three-dimensional image display systems, use In K 3-D view correspondence is projected in K visual field, it is characterised in that including:

Multiple projection arrangements, generate multiple hologram image light beams, each hologram image light for correspondence Bundle has the image information of the H row pixel of each 3-D view, and each hologram image light beam includes that N*K arranges Pixel；

Multiple optical compression devices, multiple optical compression devices are separately positioned on multiple projection arrangement On emitting light path, narrow for being compressed the horizontal width of corresponding hologram image light beam being formed Width hologram image light beam, each narrow hologram image light beam includes N row view field image light beam, each column View field image light beam includes K row pixel；

Hologram screen, including multiple diffraction element, multiple diffraction element correspondences are positioned at multiple optics pressure On the emitting light path of compression apparatus, each diffraction element covers the N row location of pixels of hologram screen, often Individual diffraction element receives a narrow hologram image light beam, and the narrow holography that will receive for correspondence The K row pixel in each row view field image light beam in image beam exists through corresponding described diffraction element The corresponding string location of pixels of described hologram screen is diffracted in K visual field,

Wherein, K, N are the integer not less than 1.

For achieving the above object, present invention also offers a kind of true three-dimensional image display method, utilize K 3-D view correspondence is projected in K visual field by above-mentioned a kind of true three-dimensional image display systems, Including:

Image generation step: at least one image source generates multiple hologram images according to default sequential Light beam；

Optical compression step: the horizontal width of each hologram image light beam is pressed by optical compression device Contracting is to form narrow hologram image light beam；Optical scanning step: optical scanner by each narrow entirely Breath image beam scanning in diffraction element corresponding to hologram screen, beam diffraction step: holographic screen Each diffraction element of curtain receives each narrow hologram image light beam narrow by receive according to default sequential The K row pixel in each row view field image light beam in width hologram image light beam is respectively through described in correspondence Diffraction element is diffracted in K visual field in the N row location of pixels correspondence of described hologram screen.

For achieving the above object, present invention also offers another kind of true three-dimensional image display method, profit By above-mentioned another kind true three-dimensional image display systems, K 3-D view correspondence is projected to K visual field In, it is characterised in that including:

Image generation step: multiple projection arrangement correspondences generate multiple hologram image light beams；Optics pressure Contracting step: the horizontal width of corresponding hologram image light beam is compressed by multiple optical compression devices To form each narrow hologram image light beam；Beam diffraction step: multiple diffraction element of hologram screen The corresponding narrow hologram image light beam receiving the output of multiple optical compression devices, and narrow by receive The K row pixel of each row view field image light beam in hologram image light beam is through corresponding described diffraction element Corresponding string location of pixels at described hologram screen is diffracted in K visual field.

The true three-dimensional image display systems of the present invention and method use at least one image source according to presetting Sequential generates hologram image light beam, or uses multiple projection arrangement correspondence to export multiple hologram images Light beam, by scanning corresponding the spreading out of hologram screen after each hologram image light beam is carried out optical compression Penetrate unit, include the image information of the H row pixel of 3-D view due to each hologram image light beam, And each row view field image light beam compressed during the narrow hologram image light beam obtained includes includes hologram As the K row pixel of light beam, each diffraction element of hologram screen covers N row location of pixels, when narrow When hologram image projects diffraction element corresponding to hologram screen so that the corresponding each picture of hologram screen The position of element is all to this K visual field injection light, and the observer being thus in each visual field can Enough observe 3-D view, reached true three dimensional display effect, and the 3-D view formed has High-resolution and picture quality.

Accompanying drawing explanation

Below with reference to the accompanying drawings illustrate embodiments of the invention, can be more readily understood that this Bright above and other objects, features and advantages.Parts in accompanying drawing are intended merely to illustrate the present invention Principle.In the accompanying drawings, same or similar technical characteristic or parts will use same or like Reference represent.

Fig. 1, Fig. 2 are the structural representation of the embodiment 1 of the true three-dimensional image display systems of the present invention.

Fig. 3 be synthetic hologram of the present invention projection frequency spectrum and it is projected, the schematic diagram of diffraction.

Fig. 4 is the structural representation of the embodiment 2 of the true three-dimensional image display systems of the present invention.

Fig. 5 is the structural representation of the embodiment 3 of the true three-dimensional image display systems of the present invention.

Fig. 6 is in the embodiment 4 of the true three-dimensional image display systems of the present invention, continuous to image source The schematic diagram that the hologram image light beam of projection is combined.

Fig. 7 is the structural representation of the embodiment 5 of the true three-dimensional image display systems of the present invention.

Fig. 8 is the flow chart of the embodiment 1 of the true three-dimensional image display method of the present invention.

Fig. 9 is the flow chart of the embodiment 2 of the true three-dimensional image display method of the present invention.

Figure 10 is the flow chart of the embodiment 3 of the true three-dimensional image display method of the present invention.

Figure 11 is the flow chart of the embodiment 4 of the true three-dimensional image display method of the present invention.

Figure 12 is the flow chart of the embodiment 5 of the true three-dimensional image display method of the present invention.

Figure 13 is the signal utilizing holographic recording and holographic interference to generate 3-D view in prior art Figure.

Figure 14 is the schematic diagram reappearing hologram image in prior art.

Figure 15 is the schematic diagram of the holography showing horizontal disparity in prior art.

Detailed description of the invention

Embodiments of the invention are described with reference to the accompanying drawings.An accompanying drawing or one in the present invention Element and feature described in embodiment can be with one or more other accompanying drawing or embodiments Shown in element and feature combine.It should be noted that, for purposes of clarity, accompanying drawing and explanation In eliminate unrelated to the invention, parts known to persons of ordinary skill in the art and the table of process Show and describe.

The invention provides a kind of true three-dimensional image display systems, for K 3-D view is corresponding It is projected in K visual field, including:

At least one image source, for generating multiple hologram image light beams with default sequential, each Hologram image light beam has the image information of the H row pixel of each 3-D view, each hologram image light Bundle includes N*K row pixel；

Optical compression device, is arranged on the emitting light path of at least one image source, for each entirely The horizontal width of breath image beam is compressed being formed narrow hologram image light beam, each narrow entirely Breath image beam includes N row view field image light beam, and each column view field image light beam includes corresponding respectively to K The K row pixel of individual visual field；

Hologram screen, including L diffraction element, each diffraction element covers the N row of hologram screen Location of pixels, each diffraction element is used for receiving each narrow hologram image light beam according to default sequential, And the K row pixel in each row view field image light beam in the narrow hologram image light beam that will receive is respectively It is diffracted in K visual field through its N row location of pixels correspondence；

Optical scanner, for by corresponding to hologram screen for the scanning of each narrow hologram image light beam Diffraction element,

Wherein, H, N, K, L are the integer not less than 1.

Alternatively, image source includes beam processor, for according to the time ordered pair arbitrary continuation preset Two hologram image light beams be combined process.

Alternatively, optical compression device includes refracting telescope assembly, mirror assembly or diffraction element group Part.

Alternatively, also including reflection unit, reflection unit includes L reflector element, L reflection Unit is corresponding with L diffraction element of hologram screen, and each reflector element is for from optical scanning Device correspondence receives a narrow hologram image light beam the narrow hologram image light beam reflection that will receive To the diffraction element that hologram screen is corresponding.

Alternatively, also include crevice projection angle adjusting apparatus, each for what optical scanner was exported Narrow hologram image light beam is adjusted to the crevice projection angle of reflection unit so that each narrow hologram As light beam projects the reflector element that reflection unit is corresponding.

Alternatively, also include segmented projection lens group, be arranged at the emitting light path of reflection unit with complete Between the input path of breath screen, segmented projection lens group includes L projection lens, reflection is filled The narrow hologram image light beam of L the reflector element reflection put is through L of described segmented projection lens group Projection lens is transmitted through L diffraction element of hologram screen.

The embodiment 1 of true three-dimensional image display systems

Referring to figs. 1 to Fig. 3, the embodiment 1 of the true three-dimensional image display systems of the present invention passes along light path Broadcast direction and be sequentially provided with image source 010 optical compression device 011, optical scanner 012 and complete Breath screen 013, specifically, optical compression device 011 is arranged on the emitting light path of image source, light Learning scanning means 012 to be arranged on the emitting light path of optical compression device 011, hologram screen 013 sets Put on the emitting light path of optical scanner 012.

Image source 010 can be, such as high speed projection engine, and this high speed projection engine is in order to preset Sequential at a high speed generate multiple hologram image light beam, each hologram image light beam can include 3-D view The image information of one or more columns per page pixel.

Image source can continuously generate multiple hologram image light beam according to this sequential preset.Such as, figure Image source 010 can sequentially generate hologram image light beam A, B, C ... wherein hologram image light beam A is successively Including corresponding 1st image information of visual field of 3-D view the 1st row pixel, 3-D view the 1st row The image information of corresponding 2nd visual field of pixel ...；Hologram image light beam B includes graphics successively As the 2nd row pixel of corresponding 1st image information of visual field of the 2nd row pixel, 3-D view is corresponding The image information of the 2nd visual field ...；Hologram image light beam C includes that the 3rd row pixel correspondence respectively regards The image information of field.

And for example, image source 010 can sequentially generate hologram image light beam A 1, B1, C1 ... Qi Zhongquan Breath image beam A1 includes the figure of the corresponding each visual field of the 1st row to the 10th row pixel of 3-D view successively As information, hologram image light beam B1 include that the 11st row of 3-D view are to the 20th row pixel pair successively The image information of each visual field, hologram image light beam C1 should include the 21st row of 3-D view successively extremely The image information of the corresponding each visual field of the 30th row pixel ... as it is shown on figure 3, the image letter of each column pixel Breath can include that synthetic hologram projects frequency spectrum, and this synthetic hologram projection frequency spectrum can be many by shown object Individual frequency content synthesizes, and such as, can be the sum of products of the plurality of frequency content and its weighing vector. This frequency content can characterize the information such as the geometry of shown object, surface color and polish, texture.Also That is, each hologram image light beam includes synthetic hologram projection frequency spectrum or the multiple row of string pixel The synthetic hologram projection frequency spectrum of pixel.Each image source 010 is per second generates tens thousand of hologram image light Restraint, and the quantity of image source 010 can be one or more.

In the present embodiment, it is assumed that the horizontal width of each hologram image light beam is K*N (pixel), institute The visual field number needed is K, and the most each hologram image light beam can include N group view field image light beam, often group View field image light beam includes K row pixel, and this K row pixel corresponds to this K visual field.Optical compression The horizontal width of each hologram image light beam is compressed forming narrow hologram image light beam by device 011, The most each narrow hologram image light beam includes N row view field image light beam, each column view field image light beam bag Including the K row pixel of hologram image light beam, each narrow hologram image light beam is swept through optical scanner 012 Retouch the diffraction element to hologram image light beam, each column view field image in each narrow hologram image light beam The K row pixel of light beam is diffracted in K visual field through corresponding diffraction element,.

Such as, if it is 800 (pixels) that image source 010 generates the width of hologram image light beam, depending on Field number is 800, and the most each hologram image light beam includes 1 row view field image light beam, this row visual field figure As light beam includes 800 row pixels (light beam) of hologram image light beam, hologram image light beam is compressed After, the 1st row pixel of this row view field image light beam by the diffraction element of hologram screen 013 (such as Fig. 1 In diffraction element a1) be diffracted into the 1st visual field, the 2nd row pixel and be diffracted into through this diffraction element 2nd visual field, by that analogy, the 800th row pixel is diffracted into the 800th visual field through this diffraction element. Then optical scanner 012 moves to the position of corresponding next diffraction element, so that the next one is narrow Width hologram image light beam scans the next diffraction element to hologram screen.In the present embodiment, diffraction Unit is the region of the N row location of pixels covering hologram screen 013, in this example, the numerical value of N Be 1, i.e. diffraction element a1 covers the string location of pixels of hologram screen 013.

If as in figure 2 it is shown, visual field number is 200, then the hologram image light of 800 row pixels Bundle includes 4 row view field image light beam (N=4), and each column view field image light beam includes this hologram image light 200 row pixels of bundle, now diffraction element covers 4 row location of pixels of hologram screen (such as diffraction Unit a2), now 200 row pixels of 4 row view field image light beams are respectively through 4 of diffraction element a2 (the string location of pixels of each imaging point covering hologram screen, such as the imaging point in Fig. 2 for imaging point D1-d4) the 1st to the 200th visual field it is diffracted into.Then optical scanner 012 moves to correspondence The position of next diffraction element, with by 4 row visual field figures in next narrow hologram image light beam 4 imaging points as light beam scanning to the next diffraction element of hologram screen.

In above-mentioned example, hologram screen can include L diffraction element, say, that optical scanning The light beam of light beam output can cover L diffraction element, and such as, optical scanner passes through self Motion, can be according to the time sequencing of hologram image light beam generation by first narrow hologram image light beam Scan first diffraction element, second narrow hologram image light beam is scanned second diffraction Unit ... by narrow for l-th hologram image beam diffraction L diffraction element on earth, by (L+1) Individual narrow hologram image light beam scans first diffraction element, by (L+2) narrow holography Image beam scans second diffraction element, circulates with this.

Optical scanner 012 in diffraction element the present embodiment can be, such as, rotation sweep is anti- Penetrate mirror, specifically, can be rotating multisurface prism or reciprocal galvanometer.Optical scanner 012 exports Light beam can cover at least one diffraction element, and can be by the motion (such as rotating) of self Arrival can be by the position of narrow hologram image light beam scanning to corresponding diffraction element.

In the present embodiment, optical compression device 011 can include refracting telescope assembly, convex as in Fig. 1 Lens and the refracting telescope assembly of concavees lens composition.Optical compression device may also comprise other optical module, Such as mirror assembly or diffraction element assembly, as long as can be compressed light beam.

All row pixel correspondences K of the 3-D view that the diffraction element diffraction of hologram screen 013 goes out The light beam of visual field can arrive in the visual field (#1-#k) of correspondence, and the spectators being in each visual field are the most considerable Observe should the 3-D view of visual field.

In the present embodiment, N, K, L, H are the integer not less than 1.

In the present embodiment, each hologram image light beam includes that the one or more columns per page pixel of 3-D view is corresponding The image information of each visual field, scans to hologram screen corresponding after being compressed to narrow hologram image light beam Diffraction element, and K row after hologram image light beam is compressed, in its each column view field image light beam Pixel can be diffracted into K visual field by correspondence, then the spectators being in each visual field i.e. can be observed to include three The true 3-D view of the synthetic hologram projection frequency spectrum of the dimension all pixels of image, reaches true three dimensional display Effect, owing to can be intensive narrow picture by hologram image laser beam compression, and through corresponding diffraction Unit is diffracted in each visual field, and the resolution of the 3-D view of each visual field therefore formed is higher.

The embodiment 2 of true three-dimensional image display systems

With reference to Fig. 4, the embodiment 2 of the true three-dimensional image display systems of the present invention include image source 040, Optical compression device 041, optical scanner 042, hologram screen 043.The true 3-D view of the present invention The corresponding component of each parts in the embodiment 2 of display system and structural relation thereof and embodiment 1 and Its structural relation is essentially identical, differs only in:

The embodiment 2 of the true three-dimensional image display systems of the present invention also includes reflection unit 045, and this is anti- Injection device 045 may be provided at the emitting light path of optical scanner 042 and entering of hologram screen 043 Penetrating between light path, reflection unit 045 includes one or more reflector element, each reflector element with One diffraction element of hologram screen is corresponding.The reflector element of reflection unit 045 is for from optics Scanning means 042 receives narrow hologram image light beam, and by anti-for the narrow hologram image light beam of reception Being incident upon the diffraction element of hologram screen 043 correspondence, each diffraction element of hologram screen 043 will receive Narrow hologram image light beam in each row view field image light beam in K row pixel (light beam) corresponding It is diffracted in K visual field.

Reflection unit 045 can be such as curved reflector.Specifically, can be the song of full wafer or segmentation Face reflecting mirror.The present embodiment uses reflection unit to reflect narrow hologram image light beam to hologram screen, Due to each reflector element of reflection unit to the light beam that hologram screen projects have different optical centers or Be converted to directional light, the image beam of corresponding different visual field can be shown on hologram screen 043, Therefore can generate and be similar to the multi-angle projection effect that multi-projector system is generated.

Alternatively, the embodiment 2 of the true three-dimensional image display systems of the present invention may also include projectional angle Degree adjusting apparatus 046, crevice projection angle adjusting apparatus 046 may be provided at the emitting light path of optical scanner 042 with anti- Between the input path of injection device 045, for optical scanner 042 output each narrow entirely The crevice projection angle of breath image beam is adjusted so that each narrow hologram image light beam projects reflection dress Set to 0 the corresponding reflector element of 45, and then project the corresponding diffraction element of hologram screen 043.

The angle of narrow hologram image light beam is projected by adjusting optical scanner 042, can be by Each narrow hologram image light beam projects in the diffraction element of hologram screen 043 correspondence exactly, can The visual field model of needs is obtained on the basis of controlling cost, improving display brightness, reduction calibration difficulty Enclose.

The embodiment 3 of true three-dimensional image display systems

With reference to Fig. 5, the embodiment 3 of the true three-dimensional image display systems of the present invention include image source 050, Optical compression device 051, optical scanner 052, hologram screen 053, reflection unit 055, also Crevice projection angle adjusting apparatus 056 can be included.In the embodiment 3 of the true three-dimensional image display systems of the present invention Each parts and structural relation essentially identical with the corresponding component of embodiment 2 and structural relation thereof, Difference is:

True three-dimensional image display systems also includes that the emitting light path being arranged at this reflection unit 055 is with complete Segmented projection lens group 057 between breath screen 053, this segmented projection lens group 057 can include one One reflector element of individual or multiple projection lens 0570, each projection lens and reflection unit 055 And a diffraction element of hologram screen 053 is corresponding, each projection lens 0570 is for by anti- The narrow hologram image light beam of the corresponding reflector element output of injection device 055 is transmitted through display screen In the corresponding diffraction element of 053.

The present embodiment uses segmented projection lens group can avoid using large scale projection lens, therefore may be used Reduce cost and system dimension.

The embodiment 4 of true three-dimensional image display systems

As described in the embodiment 1 of true three-dimensional image display systems, corresponding to 3-D view The hologram image light beam of each column pixel by being compressed according to default sequential, scanned, finally project On hologram screen, each narrow hologram image light beam can include the compression frequency of one or more columns per page pixel Spectrogram picture, such as, in the case of often organizing pixel and include the one or more columns per page pixel of 3-D view, Image source can generate the hologram image light beam of first group of pixel #1 at triggered time t1, when triggering Between t2 generate the hologram image light beam of second group of pixel #2, generate the 3rd group of picture at triggered time t3 The hologram image light beam of element #3, by that analogy, the hologram that image source is generated according to above-mentioned sequential As light beam can be compressed successively and scan, it is thus possible to such situation occurs, such as, works as optics Scanning means is in the moment (triggered time) of the position corresponding with each diffraction element of hologram screen, Image source just projects the hologram image light beam of correspondence.In such cases, optical scanning dress it is likely to be due to The continuously and smoothly put moves, and the triggered time is extremely limited so that the image beam of corresponding each visual field Time of exposure the ofest short duration, the time of exposure ultimately resulting in each view field image is the ofest short duration, people The visual effect of eye cannot reach enough brightness according to time integral.A problem additionally is, Image source only just works in the of short duration triggered time, when image source use such as can generation per second tens thousand of During the high speed projection engine of width high-definition image, result in the serious wasting of resources.

Based on the problems referred to above, the embodiment 4 of the true three-dimensional image display systems of the present invention and embodiment 1, The difference of 2 or 3 is, additionally provides beam processor (not shown), beam processor May be provided in image source, the time ordered pair any two continuous print hologram image light beam preset according to this It is combined processing, to generate " sliding window " image as shown in Figure 6, such as sweeps when optics Imaging apparatus be in corresponding to continuous two hologram image light beams between position time (two triggerings Between time), image source can also project hologram image light beam continuously, and each two continuous print is holographic Image beam exports after beam processor is combined to optical compression device and is compressed, then warp Optical scanner scans so that between two triggered times, the diffraction list that hologram screen is corresponding Unit is able to receive that hologram image light beam, extends the time of exposure of image.As shown in Figure 6, with second Illustrating as a example by group pixel #2 and the 3rd group of pixel #3, beam processor is continuous to any two Hologram image light beam be combined, refer to that a width hologram image light beam includes second group of pixel #2 A part for the hologram image light beam of a part for hologram image light beam and the 3rd group of pixel #3.

In the present embodiment, according to this preset sequential refer to, such as, the time from triggered time t2 by During gradually arriving triggered time t3, in the hologram image light beam of combination, second group of pixel #2 Hologram image light beam gradually tail off, and the hologram image light beam of the 3rd group of pixel #3 gradually becomes many, During until arriving the second triggered time t3, all 3rd group of the hologram image light beam that image source generates The hologram image light beam of pixel #3, and the process of triggered time t4 is gradually arrived at triggered time t3 In, in the hologram image light beam of combination, the hologram image light beam of the 3rd group of pixel #3 gradually tails off, And the hologram image light beam of the 4th group of pixel #4 gradually becomes many, by that analogy.

It is combined hologram image light beam processing by arranging beam processor, not only makes image source Can work without cessation continuously, it is to avoid the wasting of resources, and due to image tired of each visual field Long-pending time of exposure greatly increases, and is greatly improved the brightness of 3-D view.

Present invention also offers another kind of true three-dimensional image display systems, for by K 3-D view Correspondence is projected in K visual field, including:

Multiple projection arrangements, generate multiple hologram image light beams, each hologram image light for correspondence Bundle has the image information of the H row pixel of each 3-D view, and each hologram image light beam includes that N*K arranges Pixel；

Multiple optical compression devices, multiple optical compression devices are separately positioned on multiple projection arrangement On emitting light path, narrow for being compressed the horizontal width of corresponding hologram image light beam being formed Width hologram image light beam, each narrow hologram image light beam includes N row view field image light beam, each column View field image light beam includes K row pixel；

Hologram screen, including multiple diffraction element, multiple diffraction element correspondences are positioned at multiple optics pressure On the emitting light path of compression apparatus, each diffraction element covers the N row location of pixels of hologram screen, often Individual diffraction element receives a narrow hologram image light beam, and the narrow holography that will receive for correspondence The K row pixel in each row view field image light beam in image beam is through the string location of pixels of its correspondence It is diffracted in K visual field,

Wherein, K, N are the integer not less than 1.

The embodiment 5 of true three-dimensional image display systems

With reference to Fig. 7, the embodiment 5 of the true three-dimensional image display systems of the present invention includes multiple projection dress Set to 0 70, multiple optical compression device 071 and hologram screen 073.Hologram screen 073 includes many Individual diffraction element, each diffraction element covers the N row location of pixels of hologram screen 073.Multiple light Learn compressor 071 and be correspondingly arranged at emitting light path and the hologram screen of multiple projection arrangement 070 respectively Between the input path of multiple diffraction element of 073.

Each projection arrangement 070 can be, such as projector.Multiple projection arrangements 070 can generate simultaneously Multiple hologram image light beams, each hologram image light beam includes the image of the string pixel of 3-D view Information or the image information of multiple row pixel.

Each optical compression device 071 is for the hologram image light generating corresponding projection arrangement 070 The horizontal width of bundle is compressed forming corresponding narrow hologram image light beam.Each narrow hologram image Light beam includes N row view field image light beam, and each column view field image light beam includes the K row of hologram image light beam Pixel, K row pixel (light beam) in each row view field image light beam in each narrow hologram image light beam It is diffracted in K visual field through the diffraction element of hologram screen 073 correspondence.Concrete principle is with very three-dimensional Corresponding description in the embodiment 1 of image display system is similar, repeats no more.

In the present embodiment, each optical compression device 071 can include refracting telescope assembly, in Fig. 7 Convex lens and the refracting telescope assembly of concavees lens composition.Optical compression device may also comprise other optics group Part, such as mirror assembly or diffraction element assembly, as long as can be compressed light beam.Make Relatively low compared with cost with refracting telescope assembly, mirror assembly or diffraction element assembly.

In the present embodiment, multiple projection arrangements 070 generate hologram image light beam simultaneously, such as, many Individual projection arrangement 070 can generate hologram image light beam A 2, B2, C2 simultaneously ... wherein, is often organizing picture In the case of element includes one or more columns per page pixel, hologram image light beam A 2 includes the first of 3-D view The image information of group pixel, hologram image light beam B2 includes the image of second group of pixel of 3-D view Information ... by that analogy.Above-mentioned hologram image light beam A 2, B2, C2 ... through corresponding optics pressure The diffraction of hologram screen 073 correspondence is projected after compression apparatus 071 boil down to narrow hologram image light beam Unit, owing to narrow hologram image light beam can include multiple row view field image light beam, each column view field image Light beam can include multiple row pixel (light beam), the corresponding visual field of each column pixel, therefore, narrow entirely Breath image beam is after corresponding diffraction element diffraction is gone out, and the observer being in different visual field is equal Can be observed to should the 3-D view of visual field, reach the purpose that 3-D view shows, and due to entirely Breath image beam is compressed to narrow hologram image light beam, and hologram screen can be to the light beam of dense-pixel Carry out diffraction, there is higher resolution.

Present invention also offers a kind of true three-dimensional image display method, utilize above-mentioned true 3-D view to show Show that K 3-D view correspondence is projected in K visual field by the embodiment 1,2,3 or 4 of system, Including:

Image generation step: at least one image source generates multiple hologram images according to default sequential Light beam；

Optical compression step: the horizontal width of each hologram image light beam is pressed by optical compression device Contracting is to form narrow hologram image light beam；

Optical scanning step: the scanning of each narrow hologram image light beam is shielded by optical scanner to holographic In the diffraction element that curtain is corresponding；

Beam diffraction step: each diffraction element of hologram screen receives each narrow according to default sequential Hologram image light beam and will receive narrow hologram image light beam in each row view field image light beam in K row pixel is diffracted in K visual field through its N row location of pixels correspondence respectively.

Alternatively, also include between image generation step and optical compression step, combination step: It is combined processing according to two hologram image light beams of ordered pair arbitrary continuation time default.

Alternatively, also include between optical scanning step and beam diffraction step, reflection steps: will The narrow hologram image light beam of optical scanner output reflexes to the diffraction list that hologram screen is corresponding Unit.

Alternatively, also include between optical scanning step and reflection steps, crevice projection angle set-up procedure: The crevice projection angle of each narrow hologram image light beam of optical scanner output is adjusted.

Alternatively, also include between reflection steps and beam diffraction step, transmission step: will reflection Narrow hologram image light beam be transmitted through holography through the segmented projection lens group including L projection lens L diffraction element of screen.

The embodiment 1 of true three-dimensional image display method

With reference to Fig. 8, the embodiment 1 of the true three-dimensional image display method of the present invention comprises the following steps:

Image generation step S081: this at least one image source is multiple entirely according to default sequential generation Breath image beam.Each hologram image light beam include the 3-D view of corresponding K visual field string or The image information of multiple row pixel, such as: first hologram image light beam includes that corresponding first regards successively Synthetic hologram projection frequency spectrum, the three-dimensional of corresponding second visual field of first group of pixel of the 3-D view of field The synthetic hologram projection frequency spectrum of first group of pixel of image, corresponding 3rd visual field 3-D view the The synthetic hologram projection frequency spectrum of one group of pixel ... first group of picture of the 3-D view of corresponding K visual field The synthetic hologram projection frequency spectrum of element；Second hologram image light beam includes corresponding first visual field successively Synthetic hologram projection frequency spectrum, the 3-D view of corresponding second visual field of second group of pixel of 3-D view Second group of pixel synthetic hologram projection frequency spectrum ... the second of the 3-D view of corresponding K visual field The synthetic hologram projection frequency spectrum of group pixel；By that analogy.Assume the horizontal width of hologram image light beam For N*K, visual field number K as required, each hologram image light beam can include N group view field image Light beam, often group view field image light beam includes K row pixel, and this K row pixel corresponds to this K visual field.

In image generation step, can by high speed projection engine with above-mentioned default sequential circulation at a high speed Generate above-mentioned multiple hologram image light beam, such as, can tens thousand of hologram image light beams of generation per second. This sequential preset can be, such as, generates sequencing and the time interval of hologram image light beam.

Optical compression step S083: the horizontal width of each hologram image light beam is entered by optical compression device Row compression is to form narrow hologram image light beam.The each narrow hologram image light beam bag that this step generates Including N row view field image light beam, each column view field image light beam includes the K row pixel of hologram image light beam.

Optical scanning step S085: each narrow hologram image light beam is scanned to entirely by optical scanner In the diffraction element that breath screen is corresponding.In this step, optical scanner can according to this preset time Sequence is by the diffraction element of narrow hologram image light beam scanning to hologram screen, such as, narrow by first Width hologram image light beam scans first diffraction element, is swept by second narrow hologram image light beam Retouch second diffraction element ... concrete example is in the embodiment 1 of true three-dimensional image display systems In have been carried out describe, repeat no more.

Beam diffraction step S089: each diffraction element of hologram screen receives according to this sequential preset Each narrow hologram image light beam and will receive narrow hologram image light beam in N row view field image light The K row pixel of bundle is diffracted into this K visual field through its N row location of pixels (imaging point) correspondence respectively In.

As described by fig. 1 and 2, each diffraction element can include one or more imaging point The string location of pixels of hologram screen (each imaging point cover), one of each diffraction element or Multiple imaging points can be by 1 row in narrow hologram image light beam or the K row of multiple row view field image light beam Pixel (light beam) is diffracted in K visual field.

The true three-dimensional image display method that the present embodiment provides is generated according to default sequential by image source Hologram image light beam, each hologram image light beam includes that the one or more columns per page pixel of 3-D view is corresponding each The image information of visual field, scans to hologram screen corresponding after being compressed to narrow hologram image light beam Diffraction element, and after hologram image light beam is compressed, the K row picture in its each column view field image light beam Element can be diffracted into K visual field by correspondence, then the spectators being in each visual field i.e. can be observed to include three-dimensional The true 3-D view of the synthetic hologram projection frequency spectrum of all pixels of image, reaches the effect of true three dimensional display Really, owing to can be intensive narrow picture by hologram image laser beam compression, and through corresponding diffraction list Unit is diffracted in each visual field, and the resolution of the 3-D view of each visual field therefore formed is higher.

The embodiment 2 of true three-dimensional image display method

With reference to Fig. 9, the embodiment 2 of the true three-dimensional image display method of the present invention is basic with embodiment 1 Identical, in example 2, the true three-dimensional image display method of the present invention includes image generation step S091, optical compression step S093, optical scanning step S095 and beam diffraction step S099, It is with the difference of embodiment 1, image generation step S091 and optical compression step S093 it Between also include:

Combination step S092: the most continuous two the hologram image light beams of time ordered pair preset according to this It is combined processing.This step can generate " sliding window " as shown in Figure 6, specifically refer to Embodiment to true three-dimensional image display systems The description of 5, does not repeats them here.Then in step S092, to the hologram image light beam after combination It is compressed forming narrow hologram image light beam.

In this way, it is to avoid the wasting of resources, and be greatly improved 3-D view in display Brightness on screen.

The embodiment 3 of true three-dimensional image display method

With reference to Figure 10, embodiment 3 and the embodiment 1 or 2 of the true three-dimensional image display method of the present invention Essentially identical, in embodiment 3, the true three-dimensional image display method of the present invention includes that image generates Step S101, optical compression step S103, optical scanning step S105, beam diffraction step S109, May also include combination step 102, it is with the difference of embodiment 1 or 2, in optical scanning step Also include between S105 and beam diffraction step S109:

Reflection steps S107: by the L of reflection unit (reflection unit 045 as in Fig. 4) The each narrow hologram image light beam that optical scanner is exported by reflector element reflexes to hologram screen pair The diffraction element answered.

The light beam of scanning can have different optical centers after each reflector element reflects or be converted to put down Row light, therefore can generate and be similar to the multi-angle projection effect that multi-projector system is generated.

Alternatively, may also include that between optical scanning step S105 and reflection steps S107

Crevice projection angle set-up procedure S106: each narrow hologram image light to optical scanner output The crevice projection angle of bundle is adjusted, so that each narrow hologram image light beam projects reflection unit correspondence Reflector element, and then project the diffraction element that hologram screen is corresponding.Then in reflection steps S107 In, it is will to adjust the narrow hologram image light beam after crevice projection angle to reflex to hologram screen corresponding Diffraction element.

By crevice projection angle set-up procedure S106, can be by each row in each narrow hologram image light beam K row pixel (light beam) of view field image light beam projects the diffraction list that hologram screen is corresponding exactly In unit, therefore can adjust the projecting direction of light beam neatly, and then adjust field range, can be in control Make basis, raising display brightness, reduce the field range obtaining needs on the basis of calibrating difficulty.

The embodiment 4 of true three-dimensional image display method

With reference to Figure 11, embodiment 4 and embodiment 3 base of the true three-dimensional image display method of the present invention This is identical, and in example 4, the true three-dimensional image display method of the present invention includes that image generates step Rapid S111, optical compression step S1113, optical scanning step S115, reflection steps S117, light beam Diffraction step S119, may also include crevice projection angle set-up procedure S116, itself and the difference of embodiment 3 It is, also includes between reflection steps S117 and beam diffraction step S119:

Transmission step S118: accordingly will reflection by L projection lens of segmented projection lens group In step S117, the narrow hologram image light beam of reflection is transmitted through L diffraction element of hologram screen.

Present invention also offers another kind of true three-dimensional image display method, utilize above-mentioned true 3-D view K 3-D view correspondence is projected in K visual field by the embodiment 5 of display system, including following Step:

Image generation step: multiple projection arrangement correspondences generate the plurality of hologram image light beam；

Optical compression step: multiple optical compression devices level width to corresponding hologram image light beam Degree is compressed forming each narrow hologram image light beam；

Beam diffraction step: multiple diffraction element correspondences of hologram screen receive the plurality of optical compression The narrow hologram image light beam of device output, and each row in the narrow hologram image light beam that will receive The K row pixel of view field image light beam is diffracted in K visual field through the string location of pixels of its correspondence. The embodiment 5 of true three-dimensional image display method

With reference to Figure 12, the embodiment 5 of the true three-dimensional image display method of the present invention comprises the following steps:

Image generation step S121: multiple projection arrangement correspondences generate multiple hologram image light beams.This Each hologram image light beam that step generates includes a group of K 3-D view of corresponding K visual field The image information of pixel (one or more columns per page pixel), each hologram image light beam includes N row visual field Image beam, each column view field image light beam includes the K row pixel of hologram image light beam.

Such as: the hologram image light beam of first projection arrangement generation includes first row visual field figure successively As light beam, secondary series view field image light beam ... Nth column view field image light beam, and each column visual field figure The first of the first 3-D view (projecting the 3-D view of first visual field) is included successively as light beam The group image information of pixel, the second 3-D view (projecting the 3-D view of second visual field) The image information of one group of pixel ... k-th 3-D view (projects the graphics of the 3rd visual field Picture) the image information of first group of pixel；

The hologram image light beam of second projection arrangement generation includes first row view field image light successively Bundle, secondary series view field image light beam ... Nth column view field image light beam, and each column view field image light Shu Yici includes second group of picture of the first 3-D view (projecting the 3-D view of first visual field) Element image information, two groups of the second 3-D view (projecting the 3-D view of second visual field) The image information of pixel ... k-th 3-D view (projects the 3-D view of the 3rd visual field) The image information of second group of pixel ...

By that analogy.

Optical compression step S123: the holography that corresponding projection arrangement is generated by each optical compression device The horizontal width of image beam is compressed forming narrow hologram image light beam.Individual narrow hologram image Light beam includes N row view field image light beam, and each column view field image light beam includes the K row of hologram image light beam Pixel, this K row pixel is to should K visual field.

Beam diffraction step S129: each diffraction element of hologram screen receives corresponding narrow hologram K row picture as each row view field image light beam in light beam, and the narrow hologram image light beam that will receive Element is diffracted in K visual field through the string location of pixels (imaging point) of its correspondence.Such as, diffraction Unit can cover hologram screen one or more columns per page location of pixels (i.e. diffraction element have one or Multiple imaging points), first imaging point is by the first row view field image light of narrow hologram image light beam The K row pixel of bundle is diffracted into K visual field, and second imaging point is by the of narrow hologram image light beam The K row pixel of two row view field image light beams is diffracted into K visual field ... by that analogy, each diffraction The quantity of the imaging point that unit is had is the horizontal width (columns of pixel) of hologram image light beam Divided by the visual field number set.

Narrow hologram image light beam, after corresponding diffraction element diffraction is gone out, is in different visual field Observer all can be observed to should the 3-D view of visual field, reach the purpose that 3-D view shows, And owing to hologram image light beam is compressed to narrow hologram image light beam, hologram screen can be to intensive picture The light beam of element carries out diffraction, has higher resolution.

Current binocular solid optometric technology, parallel block grating technology, cylindrical mirror technology and collection Various defect, such as display size are little, visual field quantity is few, resolution to become Display Technique all to also exist Rate is low, brightness is low, the low deficiency of definition etc..And the light field true 3-D view display of multi-projector is Although system has the potential quality obtaining big visual field, but there is calibration difficulties and price between a projector The intrinsic defect such as expensive, corresponding therewith, true three-dimensional image display systems that the present invention proposes and true Three-dimensional image display method has an advantage that one or more are unique:

1, simple in construction, can be only with separate unit image source such as high speed projector；

2, high definition resolution, the image of each visual field is high-definition image；

3, low cost, can only use separate unit image source and cheap optical element, its cost is the lowest In multi-projector；

4, visual field number, up to dozens of, is effectively improved three dimensional display quality and does not increase system Cost；

5, high brightness, the design realizes the effect of multi-projector projection and does not lose brightness；

6, calibration is convenient, and a major defect of tradition multi-projector system is to be difficult to calibrate, this Design overcomes this defect；

7, hologram screen size can be adjusted flexibly, it is simple to different application demands；

8, it is possible to achieve authentic color three dimension shows.Use RGB three-color light source, project respectively red, Green, primary colors (or other can generate the color scheme of color true to nature), the display after synthesis Just the true three dimensional display of authentic colour can be generated.

In apparatus and method of the present invention, it is clear that each parts or each step be can decompose, group Reconfigure after closing and/or decomposing.These decompose and/or reconfigure and should be regarded as the present invention's Equivalents.Meanwhile, in description to the specific embodiment of the invention above, implement for one Mode describes and/or the feature that illustrates can be in same or similar mode one or more its Its embodiment uses, combined with the feature in other embodiment, or substitute other enforcement Feature in mode.

It should be emphasized that term " includes/comprises " referring to when using feature, key element, step herein Or the existence of assembly, but it is not precluded from one or more further feature, key element, step or assembly Existence or additional.

Although the present invention of being described in detail and advantage thereof it should be appreciated that without departing from by institute Various changing can be carried out in the case of the spirit and scope of the present invention that attached claim is limited Become, substitute and convert.And, the scope of the present invention be not limited only to the process described by description, Equipment, means, the specific embodiment of method and steps.One of ordinary skilled in the art is from this Disclosure of the invention content will readily appreciate that, can use execution and corresponding reality in this according to the present invention Execute the essentially identical function of example or obtain the result essentially identical with it, existing and future will quilt Process, equipment, means, method or the step of exploitation.Therefore, appended claim is intended to Such process, equipment, means, method or step is included in the range of them.

Claims (14)

1. a true three-dimensional image display systems, for being projected to K by K 3-D view correspondence In visual field, it is characterised in that including:

At least one image source, for generating multiple hologram image light beams, Mei Gequan with default sequential Breath image beam has the image information of the H row pixel of each described 3-D view, each hologram image Light beam includes N*K row pixel；

Optical compression device, is arranged on the emitting light path of at least one image source described, for respectively The horizontal width of described hologram image light beam is compressed being formed narrow hologram image light beam, each Narrow hologram image light beam includes N row view field image light beam, and each column view field image light beam includes respectively K row pixel corresponding to K visual field；

Hologram screen, including L diffraction element, each diffraction element covers the N row of described hologram screen Location of pixels, each described diffraction element for according to described default sequential receive each described narrow entirely Breath image beam, and the K in each row view field image light beam in the narrow hologram image light beam that will receive Row pixel is corresponding at the N row location of pixels of described hologram screen through corresponding described diffraction element respectively It is diffracted in described K visual field；

Optical scanner, for by each described narrow hologram image light beam scanning extremely described hologram screen Corresponding diffraction element,

Wherein, described H, N, K, L are the integer not less than 1.

True three-dimensional image display systems the most according to claim 1, it is characterised in that described Image source includes beam processor, for according to described default time two of ordered pair arbitrary continuation complete Breath image beam is combined processing.

True three-dimensional image display systems the most according to claim 1, it is characterised in that described Optical compression device includes refracting telescope assembly, mirror assembly or diffraction element assembly.

4., according to the true three-dimensional image display systems described in any one of claim 1-3, its feature exists In, also include that reflection unit, described reflection unit include L reflector element, described L reflection Unit is corresponding with L diffraction element of described hologram screen, and each reflector element is for from described Optical scanner correspondence receives a narrow hologram image light beam the narrow hologram that will receive As light beam reflexes in the diffraction element that described hologram screen is corresponding.

True three-dimensional image display systems the most according to claim 4, it is characterised in that also wrap Include crevice projection angle adjusting apparatus, for each narrow hologram image that described optical scanner is exported Light beam is adjusted to the crevice projection angle of described reflection unit, so that each described each narrow hologram image Light beam projects the reflector element that described reflection unit is corresponding.

True three-dimensional image display systems the most according to claim 5, it is characterised in that also wrap Include segmented projection lens group, be arranged at the emitting light path of described reflection unit and the incidence of hologram screen Between light path, described segmented projection lens group includes L projection lens, by the L of described reflection unit The narrow hologram image light beam of reflector element reflection is through L projection lens of described segmented projection lens group Head is transmitted through L diffraction element of described hologram screen.

7. a true three-dimensional image display systems, for being projected to K by K 3-D view correspondence In visual field, it is characterised in that including:

Multiple projection arrangements, generate multiple hologram image light beams, each hologram image light beam for correspondence Having the image information of the H row pixel of each described 3-D view, each hologram image light beam includes N*K Row pixel；

Multiple optical compression devices, the plurality of optical compression device is separately positioned on the plurality of projection On the emitting light path of device, for the horizontal width of corresponding hologram image light beam is compressed with Forming narrow hologram image light beam, each narrow hologram image light beam includes N row view field image light beam, Each column view field image light beam includes K row pixel；

Hologram screen, including multiple diffraction element, the plurality of diffraction element correspondence is positioned at the plurality of On the emitting light path of optical compression device, each diffraction element covers the N row picture of described hologram screen Element position, each diffraction element receives a narrow hologram image light beam for correspondence, and will receive Narrow hologram image light beam in each row view field image light beam in K row pixel described in corresponding Diffraction element is diffracted in described K visual field at the corresponding string location of pixels of described hologram screen,

Wherein, described K, N are the integer not less than 1.

True three-dimensional image display systems the most according to claim 7, it is characterised in that each institute State optical compression device and include refracting telescope assembly, mirror assembly or diffraction element assembly.

9. a true three-dimensional image display method, utilizes true three described in any one of claim 1-6 Described K 3-D view correspondence is projected in described K visual field by dimension image display system, and it is special Levy and be, including:

Image generation step: at least one image source described is the plurality of entirely according to default sequential generation Breath image beam；

Optical compression step: the described optical compression device horizontal width to each described hologram image light beam It is compressed forming narrow hologram image light beam；

Optical scanning step: each described narrow hologram image light beam is scanned extremely by described optical scanner In the diffraction element that described hologram screen is corresponding；

Beam diffraction step: each described diffraction element of described hologram screen is according to described default sequential The each row received in each described narrow hologram image light beam the narrow hologram image light beam that will receive regard K row pixel in field picture light beam respectively through corresponding described diffraction element at the N of described hologram screen Row location of pixels correspondence is diffracted in described K visual field.

True three-dimensional image display method the most according to claim 9, it is characterised in that in institute State and also include between image generation step and optical compression step:

Combination step: according to described default time ordered pair arbitrary continuation two hologram image light beams carry out Combined treatment.

11. according to the true three-dimensional image display method described in claim 9 or 10, it is characterised in that Also include between described optical scanning step and beam diffraction step:

Reflection steps: the narrow hologram image light beam exported by described optical scanner reflexes to described The diffraction element that hologram screen is corresponding.

12. true three-dimensional image display methods according to claim 11, it is characterised in that institute State and also include between optical scanning step and reflection steps:

Crevice projection angle set-up procedure: each narrow hologram image light beam that described optical scanner is exported Crevice projection angle be adjusted.

13. true three-dimensional image display methods according to claim 11, it is characterised in that institute State and also include between reflection steps and beam diffraction step:

Transmission step: the narrow hologram image light beam of reflection is thrown through the segmentation including L projection lens Shadow lens group is transmitted through L diffraction element of described hologram screen.

14. 1 kinds of true three-dimensional image display methods, utilize the true graphics described in claim 7 or 8 As described K 3-D view correspondence is projected in described K visual field by display system, its feature exists In, including:

Image generation step: the plurality of projection arrangement correspondence generates the plurality of hologram image light beam；

Optical compression step: the plurality of optical compression device level to corresponding hologram image light beam Width is compressed forming each described narrow hologram image light beam；

Beam diffraction step: multiple diffraction element correspondences of described hologram screen receive the plurality of optics The narrow hologram image light beam of compressor output, and in the narrow hologram image light beam that will receive The K row pixel of each row view field image light beam is through right at described hologram screen of corresponding described diffraction element The string location of pixels answered is diffracted in described K visual field.