CN104122745A - Projection array and projection displaying method applicable to naked-eye display system - Google Patents

Abstract

The invention discloses a projection array and a projection displaying method applicable to a naked-eye display system. A projection array system applicable to the naked-eye display system comprises a specific amount of projections units and a projection angle expansion module. The projection units are integrated in a compact space below a display screen in an array manner, the projection units are arranged equidistantly and transversely, two ends of the projection array and the middle projection unit are subjected to one-time or multi-time optical path mirroring turnover by the aid of flat mirrors, and finally the projection units are integrally and compactly arranged below the display screen. The projection angle expansion module comprises a wide-angle lens type projection angle expansion lens which is connected with light-emitting lenses of the projection units. The projection displaying method is applicable to a multi-view display system. The projection array and the projection displaying method applicable to the naked-eye display system have the advantages that the fact that transverse resolutions of three-dimensional images are not decreased along with increasing of viewpoints is guaranteed, the occupied space of the whole projection array is compressed effectively by optimizing the projection array distribution and reasonably and reversely utilizing the wide-angle lens, the length-to-width ratio of the projection array is improved, and active demand on the compact projection system from the market is met.

Description

Be applicable to projected array and the method for displaying projection of bore hole display system

Technical field

The present invention relates to true 3-D display field, more specifically, relate to a kind of projected array and method for displaying projection that is applicable to bore hole display system.

Background technology

True dimension display technologies can be simultaneously for spectators provide the image of being played up a plurality of sides of object, so that spectators see the side that it is corresponding being played up the position that object is corresponding, thereby produces three-dimensional (3D) perception that solid is really looked.Bore hole is looked true dimension display technologies as an important branch of true dimension display technologies more, by the domestic and international researchist in association area, as the focus technology of realizing three-dimensional television, is carried out primary study in recent years.It is that a kind of observer of making is not wearing under the natural observation condition of any accessorial visual equipment that bore hole is looked real three-dimensional display system more, sensory perceptual system is by the binocular parallax looking image sequence more and provide and move horizontally parallax, thereby produces the system of observing true three-dimension object sensation.Than wearing spectacles, experience the 3 Dimension Image Technique of 3-D display effect, bore hole is looked true dimension display technologies more and has been retained bore hole, parallax etc. and meet the three-dimensional perception feature prompting (Cue) that people observes object custom naturally, simplified again in system the design of mechanical part and display screen in display unit, also increased the engineering feasibility that shows complex texture and large scale true color three-dimensional content, made display system more approach the flat-panel screens of current commercialization.

The image production part that bore hole is looked true dimension display technologies more divides main liquid crystal display (LCD) or array of rear-projectors by preposition original screen panel at present to form.Image production part divides to provide is played up object a plurality of visual point images in the horizontal direction, makes observer in moving horizontally process, see the not ipsilateral of object, produces horizontal parallax (horizontal parallax, HP); If interval is less between viewpoint, observer under static state eyes can observe the image of different points of view, then produce binocular parallax (binocular parallax, BP).

In the situation that provide image by the LCD of preposition original screen panel, a kind of typical bore hole is looked true three dimension system principle of work as shown in Figure 1a more: the lcd screen 101 of wherein original screen panel being adhered to in the place ahead erects from top to bottom overlooks and see, the vertical view of the original screen panel 103 that can obtain the vertical view of LCD panel 102 and be close to above, original screen panel 103 is comprised of many transversely arranged single cylindrical grating unit 104, the line number that the number of the single cylindrical grating unit 104 that per inch comprises is original screen panel (lens per inch, LPI).When a certain two field picture that LCD panel 102 shows, each cylindrical grating unit 104 of preposition original screen panel covers the unit (in Fig. 1 a, hypothesis has covered A altogether to I totally nine slice unit) of a slice shape on LCD panels 102.The image that in Fig. 1 a, original screen panel 103 shows LCD panel 102 is invested 3 viewpoint direction, be 105 on Fig. 1 a, 106, 107, and the optical characteristics of original screen panel 103 can be amplified to the transverse width of each pixel original three times when changing light path, 104, 105, although the image content that 106 3 viewpoints are observed respectively only for original image 1/3rd (104 observe A, D, G, 105 observe B, E, H, 106 observe C, F, I), but area consistent with the image that original LCD panel 102 shows (A is amplified to three times of original width by along continuous straight runs to the width of these 9 slice unit of I).Thus, as long as reasonable arrangement A is to the displaying contents of I, can make observer see respectively and be played up the different side of object three viewpoints, form three-dimensional perception.Current this method is extensively applied in bore hole three-dimensional television product by some televisor production firms.But the inherent shortcoming of this display packing is the image that obtains a plurality of viewpoints by reducing the true resolution of displaying contents (when providing 3 viewpoints in Fig. 1 a, the true resolution of each viewpoint drops to original 1/3rd).In the limited situation of the lateral resolution of existing lcd screen, ten above multi-view images cannot be generated, the smooth excessiveness between viewpoint cannot be realized.

This defect for the liquid crystal display (LCD) of preposition original screen panel, adopt projected array to provide the scheme of multi-view image to arise at the historic moment, certain typical bore hole is looked true three dimension system principle of work as shown in Figure 1 b more: anisotropy holographic film 108 surfaces as screen in figure have special microstructure, and the light that different directions projection is come is propagated along different directions separately through meeting after holographic film.This specific character based on anisotropy holographic film 108, in 1b figure, hypothesis has three projector respectively towards different directions projection three width images 109, 110, 111, three width images are respectively by A1, B1, C1, A2, B2, C2, A3, B3, tri-picture strips of C3 form, through anisotropy holographic film 112, be reassembled as A1, A2, A3, B1, B2, B3, C1, C2, C3, project to respectively 104, 105, 106 3 viewpoints, the quantity of information that now each visual point image comprises is with consistent before projection, there is not the true resolution decline problem of bringing while using preposition original screen panel LCD minute viewpoint.But the general employing of projected array is carried out transversely arranged providing compared with multi-projector and is played up the more horizontal visual point image of object; with by more obvious binocular parallax with move horizontally parallax and build more real 3D vision effect; projected array can occupy larger space conventionally like this; be unfavorable for the integrated research and development of model machine, this also becomes the technical barrier that this technological achievement transforms.

From true 3-D display user's experience, it is all important criterion that seamlessly transitting between more viewpoints and viewpoint is provided, and the free view-point TV (Free-view TV, FTV) that at present very three-dimensional industry proposes simultaneously has also been emphasized these factors.Therefore, projected array shows the core that becomes at present whole true dimension display technologies, along with the fast development of true dimension display technologies and the market-oriented requirement of true dimension display technologies theoretical result conversion, in the urgent need to a kind of bore hole that is applicable to, look real three-dimensional display system more and be easy to integrated compact projected array system.

Summary of the invention

In order to solve the above-mentioned bore hole that is applicable to, look the defect that the projected array of real three-dimensional display system exists more, develop to the property of the present invention is directed to a kind of projected array system that is easy to integrated assembling, it,, by space folding light path design, can be integrated in easily bore hole with less space and look in real three-dimensional display system more; In internal system, camera is set simultaneously, by folding shooting path, obtain the quadrilateral area roughly overlapping on display screen that each projector projection goes out equally, use fast projection array calibration algorithm to proofread and correct one by one the regular rectangular shape accurately overlapping on display screen into all, to solve aforementioned bore hole, look several subject matters of using projected array to bring in real three-dimensional display system more.

As one aspect of the present invention, the invention provides a kind of projected array that is applicable to bore hole display system, comprise that a plurality of projecting cells are integrated in compact space, display screen below in the mode of array.

Wherein, described projected array also comprises:

Projected angle expansion module, for projector projection angle is expanded, makes in situation that light path is constant projected image larger.

Wherein, described projected angle expansion module comprises and projecting cell bright dipping camera lens projected angle expansion that be connected, wide-angle lens form camera lens.

Wherein, described projected angle expansion module is connected with described projecting cell bright dipping camera lens by draw-in groove, described draw-in groove comprises locating piece, projector end interface and projected angle extender head end interface, and described projector end interface place plane becomes a non-zero angle with described projected angle extender head end interface place plane.

Wherein, described projecting cell is laterally uniformly-spaced arranged, by level crossing, the turnover of one or many light path mirror image is carried out respectively in projected array two ends and middle projecting cell, the most all projecting cells are with the integrated below that is arranged in display screen of compact mode simultaneously.

Preferably, described bore hole display system is that bore hole is looked real three-dimensional display system more.

As another aspect of the present invention, the present invention also provides a kind of method for displaying projection that bore hole is looked real three-dimensional display system more that is applicable to, and comprising:

Mode by a plurality of projecting cells with array is integrated in compact space, display screen below, the image that wherein the projector projection of diverse location goes out in array is respectively by being placed in the level crossing of diverse location, mirror-reflection through different number of times, finally projects on same display plane by projected angle expansion module;

Wherein, described projected angle expansion module comprises and projecting cell bright dipping camera lens projected angle expansion that be connected, wide-angle lens form camera lens.

As another aspect of the present invention, the present invention also provides a kind of projected angle expansion module, comprises and projecting cell bright dipping camera lens projected angle expansion that be connected, wide-angle lens form camera lens.

Wherein, described projected angle expansion module is connected with described projecting cell bright dipping camera lens by draw-in groove, and described draw-in groove is comprised of projector end interface, projected angle extender head end interface and locating piece, and

Described projector end interface place plane becomes a non-zero angle with described projected angle extender head end interface place plane.

As an also aspect of the present invention, the present invention also provides a kind of projected angle expansion module draw-in groove, comprise locating piece, projector end interface and projected angle extender head end interface, wherein locating piece, projector end interface are had nothing in common with each other because projector model is different, the model that projected angle extender head end interface is expanded camera lens because of projected angle is different and different, and

Described projector end interface place plane becomes a non-zero angle with described projected angle extender head end interface place plane.

Based on technique scheme, projected array of the present invention has following beneficial effect: than based on preposition original screen panel LCD bore hole dimension display technologies, the present invention adopts projected array that multi-view image is provided, and guarantees that 3-D view lateral resolution does not reduce with the increase of viewpoint number; And by optimizing projected array layout and the reasonable reverse wide-angle lens that utilizes, can effectively compress whole projected array takes up space, overcome traditionally based on the shortcoming such as projected array in projected array bore hole three-dimensional display system is bulky, not easy of integration, meet the active demand of market to compact projection systems.Whole projected array is reasonable in design utilizes space, has improved the length breadth ratio of projected array, can be reasonably integrated in whole bore hole in compact mode and look in real three-dimensional display system more.

Accompanying drawing explanation

Fig. 1 a is the principle schematic by a kind of typical bore hole 3-D display of preposition original screen panel liquid crystal display synthetic image;

Fig. 1 b is for being provided the principle schematic of a kind of typical bore hole 3-D display of image by projected array;

Fig. 2 a is projector light path expansion schematic diagram;

Fig. 2 b is projected angle expansion camera lens expansion light path schematic diagram;

Fig. 2 c is for connecting the notch schematic diagram of projector and projected angle expansion camera lens;

Fig. 2 d is projector light trackside view after installation draw-in groove;

Fig. 3 a is initial projected array schematic diagram;

Fig. 3 b is that projected array is once reset schematic diagram;

Fig. 3 c is projected array according to mirror-reflection theorem by level crossing equivalence turnover schematic top plan view once;

Fig. 3 d is that projected array is turned down schematic side view according to mirror-reflection theorem by the equivalence of level crossing secondary.

Embodiment

For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention is described in further detail.

The basic functional principle of projected array of the present invention is as follows:

1, projection angle expansion design: projector light path is generally just fixed when dispatching from the factory, certain at the projection imaging area from projector lens fixed position, if now projected area does not meet imaging screen curtain size, need enlarged-area, can only realize by increasing distance, each projector in actual projected array will be placed on farther position, has increased the space of whole projected array.By by being placed in before projector lens for expanding the wide-angle lens of camera shooting angle, played the effect of extended projection angle, make projector in the situation that keeping at a distance by image projection enlarged areas.And designed special-purpose fixed card slot projector bright dipping camera lens and projected angle expansion camera lens has been connected and fixed.Fig. 2 a has shown the situation before and after projected angle expansion, and wherein the corresponding projector 201 of imaging region ACDB is by the image-region that bright dipping camera lens 202 projections of additional any projected angle expanding unit do not go out; And project extended camera lens 203 (its principle of work as shown in Figure 2 b) is by after fixed card slot 204 is connected with bright dipping camera lens 202, in the situation that projector distance is constant, imaging region is increased to EGHF, realized thus the expansion (Fig. 2 a left-half only expressed its spread scenarios in the vertical direction, the expansion of horizontal direction with it similar) of imaging angle in horizontal and vertical direction.

2, projecting light path's foldover design: for more horizontal parallax image is provided, projecting cell in projected array needs transversely arranged, between each projector lens, have uniform horizontal interval, add the horizontal volume of projecting cell self, whole projected array still has larger horizontal spreading amplitude in the situation that adopting projected angle expansion.As shown in Figure 3 a, when projecting cell is more, whole projected array lateral separation also can be very long.The present invention adopts the folding method of light path segmentation shown in Fig. 3 b for this reason, projected array is first moved to the position of 304 and 305 (dotted line marks) near the part 302 and 303 (dotted line marks) of the right and left, according to mirror-reflection principle, by built-in two sides level crossing 306 and 307 mirror images, be folded to 308 and 309 places again, and not changing the transmit direction of light path, Fig. 3 c has shown this process; The integral body 310 as shown in Figure 3 d all projecting cells being formed together with two-face mirror 306,307 is more afterwards folded to 312 places (display screen 313 belows) by mirror 311 secondary images, and whole projected array is integrated in the finite space of display screen below at an easy rate.

Below embodiments of the invention are elaborated, provided detailed embodiment and concrete algorithm flow, but protection scope of the present invention is not limited to following embodiment.

1, projection angle expansion design: projector light path is generally just fixed when dispatching from the factory, projected image area when from projector lens fixed position is certain, Fig. 2 a left-half projected angle of take is example by the situation of extends perpendicular, left-hand component is projector 201 in the situation that of extended projection angle not, apart from its bright dipping camera lens 202 center O distances, it is being the imaging of L place, the side view of ABWei view field place plane wherein, the side view of the light path that triangle AOB goes out for now projector projection; Its view field's front elevation represents with rectangle ACDB at right half part.General projector all can allow its light path slightly on the upper side, now can cross O and be vertical line OO ' (OO ' length be L) to projection plane, can obtain projected angle in side view and be:

$\∠\mathrm{AOB}=\arctan \frac{{\mathrm{AO}}^{\′}}{{\mathrm{OO}}^{\′}}-\arctan \frac{{\mathrm{BO}}^{\′}}{{\mathrm{OO}}^{\′}}=\arctan \frac{{\mathrm{AO}}^{\′}}{L}-\arctan \frac{{\mathrm{BO}}^{\′}}{L}$

If now projected area does not meet imaging screen curtain size, need enlarged-area, can only realize by increasing distance L, each projector in so actual projected array will be placed on farther position, has increased the space of whole projected array.The present invention, by being placed in before projector lens for expanding the wide-angle lens of camera shooting angle, has played the effect of extended projection angle, and now projected angle is:

$\∠\mathrm{EOF}=\arctan \frac{{\mathrm{EO}}^{\′}}{{\mathrm{OO}}^{\′}}-\arctan \frac{{\mathrm{FO}}^{\′}}{{\mathrm{OO}}^{\′}}=\arctan \frac{{\mathrm{EO}}^{\′}}{L}-\arctan \frac{{\mathrm{FO}}^{\′}}{L}>\∠\mathrm{AOB}$

The side view of wide-angle lens (project extended camera lens 203) as shown in Figure 2 b: it can gather the light of right-to-left transmitting in figure with larger field angle (field of view, FOV), have relational expression in Fig. 2 b:

∠A′OB′＞∠AOB

According to the principle of reversibility of optical path, if projector is projection ray from left to right, wide-angle lens (project extended camera lens 203) is also by the corresponding expansion of its projected angle, played the effect that expands projection angle, reaches projector to be kept at a distance obtain the object of larger projected image in the situation of L.Discussed above is all the situation that projected angle is expanded in vertical direction, and the situation that is expanded in the horizontal direction can in like manner push away it.

Because wide-angle lens (projected angle expansion camera lens 203) is generally used for capture apparatus, itself and projector lens 202 do not have general interface.The present invention has also designed draw-in groove 204, and projector bright dipping camera lens 202 and projected angle expansion camera lens 203 is fixing according to being linked in sequence shown in Fig. 2 a, and these parts have formed projecting cell 205.Wherein Fig. 2 c is for connecting the structural representation of projector 201 and projected angle expansion camera lens 203 draw-in grooves, and wherein projector end interface 206 is connected with projector bright dipping camera lens 202, and projected angle extender head end interface 207 is connected with projected angle expansion camera lens 203.As shown in Figure 2 d, wherein projector bright dipping camera lens 202 place planes overlap because both join with the projector end interface 206 place planes on draw-in groove 204 side view that projector 201 front ends add draw-in groove 204, are equivalent to line segment CD in right view; Projected angle expansion camera lens 203 place planes because both join and also overlap, are equivalent to line segment AB with the projected angle extender head end interface 207 place planes on draw-in groove 204 in right view.Due to most of projector projected image central rays (in figure with arrow solid line) and projector bright dipping camera lens 202 center lines (in figure dotted line) vertical with CD inconsistent, but ∠ α at angle, and require projected image central ray consistent with projected angle expansion camera lens 203 center lines (require to be with arrow solid line and AB well-behaved directly) during the 203 normal work of projected angle expansion camera lens, so in the present invention by the projector end interface 206 place planes that are connected and fixed projector bright dipping camera lens 202 planes and the projected angle extender head end interface 207 place planar designs that are connected and fixed projected angle expansion camera lens 203 planes ∠ β at angle, and easily know and have relational expression:

∠β＝∠α

The angle design being about between projector end interface 206 and projected angle extender head end interface 207 is the elevation angle of projector 201 projection ray centers and surface level.Because the rotation of projected angle expansion camera lens 203 can cause the rotation of projected image, so the present invention increases locating piece 208 on draw-in groove 204, the location of draw-in groove 204 when assembling.

2, projecting light path's foldover design: at present bore hole is looked real three-dimensional display system more and be take by binocular parallax and move horizontally parallax and provide three-dimensional perception as main as observer, binocular parallax and move horizontally parallax and all require there is in the horizontal direction visual point image as much as possible.For more horizontal parallax image is provided, projecting cell in projected array needs transversely arranged, between each projector lens, have uniform horizontal interval, add the horizontal volume of projecting cell self, whole projected array still has larger horizontal spreading amplitude in the situation that adopting projected angle expansion.As shown in Figure 3 a, when projecting cell is more, whole projected array lateral separation also can be very long.

Because bore hole is looked real three-dimensional display system more and at present vertical direction be there is no the demand of viewpoint, the present invention, to projected array transversely arranged more, transforms and distribute in the less prolate type of longitudinal arrangement, to more effectively utilizing the finite space for this reason.Light path shown in Fig. 3 b is the folding method of a kind of typical segmentation that we adopt: it is evenly distributed with horizontal interval s that in figure, hypothesis exists a projected array by m*n projector 201, in array, the transverse width of each projecting cell is p1+p2, do not do any again arrange in the situation that its transverse width S be:

S＝m·n·s+p1+p2

Known in the situation that projecting cell sum is certain the difference value of S and m, n it doesn't matter, if comprise 40 projecting cells in array, arranging of 4 row 10 row and arranging for the not impact of the overall transverse width of array of 5 row 8 row so.

The present invention starts with far below horizontal this point in longitudinal space utilization factor from solving projected array, using projected array near the projecting cell of the right and left some as projection subarray 302 and 303 (dotted line marks), the position of first longitudinal translation to 304 and 305 (dotted line marks), as shown in Figure 3 b.According to statement before, in the situation that keeping horizontal spacing s constant, translation longitudinally does not affect the generation of many viewpoints.Again according to mirror-reflection principle, utilize built-in two sides level crossing 306 and 307 that projection subarray 302 and 303 horizontal mirror images are folded to 308 and 309 places, Fig. 3 c has shown mirror-reflection application therein with the visual angle of downward projection subarray 304 from top to bottom: the optical path direction that the projecting cell that left-half is finally moved to 308 places sends when 304 place with it after level crossing 306 reflected light paths is consistent, all meets the requirement that bore hole is looked true projecting cell light path in 3-D display pair array more; The optical path direction that in like manner projecting cell at projected array right half part 309 places sends when 305 place with it after level crossing 307 reflected light paths is also consistent, the explanation of no longer drawing here.Enter the projected array of so again arranging and formed new once rearrangement projected array 310 (projecting cell that in Fig. 3 b, all solid lines represent adds two-face mirror 306 and 307) together with the two-face mirror 306 and 307 increasing.Transverse width than initial projected array 301 through the projecting cell that so rearranges can be reduced, and the overall width of reduction is:

ΔS＝2t·(p+i)＝2t·(p1+p2+i)

Wherein t be by translation 304 or 305 in the projecting cell number of a line.In typical projected array, generally have:

$i\≈s\≈\frac{p1+p2}{3}$

The method that the present invention adopts like this to the reduction ratio of projected array transverse width is:

$\mathrm{\η}=\frac{\mathrm{\ΔS}}{S}=\frac{2t\·(p1+p2+i)}{m\·n\·s+p1+p2}=\frac{8t\·i}{(m\·n+3)\·i}=\frac{8t}{m\·n+3}$

The projected array of illustrating in Fig. 3 a, 3b of take is example, gets m=3, n=10, t=2, can save nearly half horizontal space:

$\mathrm{\η}=\frac{8t}{m\·n+3}=\frac{16}{33}\≈50\%$

By above formula, also can be found out, when in projected array, projecting cell number number m*n determines, t is larger, and the compressibility of horizontal space is higher.But by Fig. 3 b, also can be found out, the number of t is unsuitable excessive, otherwise the projecting cell of the left part of 308 right side part and 309 can interfere.In addition as n > > m, can choose more multiclass like 302 or 303 such projection subarrays, and it is carried out respectively to translation similarly along the longitudinal.But if translation is too much, whole projected array can tend to again long at longitudinal length, causes being integrated in easily in whole imaging system.So should suitablely select the value of m, n, t rather than unilateral increase t to pursue horizontal space compressibility.

For the projected array of carrying out projected angle expansion, the projector distance L that meets the common like this display screen of 30-40 inch often still reach 2m even more than, if after being placed on display screen, the similar old-fashioned CRT monitor of whole display system also has too fat to move hangover part after display screen; The present invention is resetting on the basis of projected array before, by once reset level crossing 311 that projected array 310 puts by inclination according to reflection theorem integral body again mirror image be folded to 312 places, even if array integral body is positioned at the below finite space of display screen 313, Fig. 3 d has shown this time mirror image turnover process once to reset the side-looking visual angle of projected array 310, does not still change the optical path direction of projected image with the same its of showing in Fig. 3 c.Wherein display screen 313 and ground can become the less angles such as 0 °, 1 °, 2 °, 3 °, 4 °, 5 °, and the level crossing 311 that tilts to put can become any angle between 40 ° to 50 ° with display screen 313; And each projecting cell fixing and install and need to not install with very high precision, the projected image positioning error causing thus can be unified alignment correction by software with the phenomenon that do not overlapped by the different images that cause of projected position.

Above-described embodiment has elaborated the projected array that bore hole is looked real three-dimensional display system more that is applicable to of the present invention, relative display screen 313, secondary turnover projected array 312 projected images in the present invention and the image equivalence of initial projected array 301 projections, consider the design of projected angle expansion module, the projected array of the present invention's design is more easily integrated in display system inside compactly with efficient space availability ratio.

Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only of the present invention body embodiment; be not limited to the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims (10)

1. be applicable to a projected array for bore hole display system, comprise that a plurality of projecting cells are integrated in compact space, display screen below in the mode of array.

2. the projected array that is applicable to bore hole display system according to claim 1, wherein said projected array also comprises:

Projected angle expansion module, for projector projection angle is expanded, makes in situation that light path is constant projected image larger.

3. the projected array that is applicable to bore hole display system according to claim 2, wherein said projected angle expansion module comprises and projecting cell bright dipping camera lens projected angle expansion that be connected, wide-angle lens form camera lens.

4. the projected array that is applicable to bore hole display system according to claim 2, wherein said projected angle expansion module is connected with described projecting cell bright dipping camera lens by draw-in groove, described draw-in groove comprises locating piece, projector end interface and projected angle extender head end interface, and described projector end interface place plane becomes a non-zero angle with described projected angle extender head end interface place plane.

5. the projected array that is applicable to bore hole display system according to claim 1, wherein said projecting cell is laterally uniformly-spaced arranged, by level crossing, the turnover of one or many light path mirror image is carried out respectively in projected array two ends and middle projecting cell, the most all projecting cells are with the integrated below that is arranged in display screen of compact mode simultaneously.

6. the projected array that is applicable to bore hole display system according to claim 1, described bore hole display system is that bore hole is looked real three-dimensional display system more.

7. be applicable to bore hole and look a method for displaying projection for real three-dimensional display system more, comprising:

Mode by a plurality of projecting cells with array is integrated in compact space, display screen below, the image that wherein the projector projection of diverse location goes out in array is respectively by being placed in the level crossing of diverse location, mirror-reflection through different number of times, finally projects on same display plane by projected angle expansion module;

Wherein, described projected angle expansion module comprises and projecting cell bright dipping camera lens projected angle expansion that be connected, wide-angle lens form camera lens.

8. a projected angle expansion module, comprises and projecting cell bright dipping camera lens projected angle expansion that be connected, wide-angle lens form camera lens.

9. projected angle expansion module according to claim 8, wherein said projected angle expansion module is connected with described projecting cell bright dipping camera lens by draw-in groove, and described draw-in groove is comprised of projector end interface, projected angle extender head end interface and locating piece, and

Described projector end interface place plane becomes a non-zero angle with described projected angle extender head end interface place plane.

10. a projected angle expansion module draw-in groove, comprise locating piece, projector end interface and projected angle extender head end interface, wherein locating piece, projector end interface are had nothing in common with each other because projector model is different, the model that projected angle extender head end interface is expanded camera lens because of projected angle is different and different, and

Described projector end interface place plane becomes a non-zero angle with described projected angle extender head end interface place plane.