CN104076516B - Stereo display light source and 3 d display device - Google Patents

Stereo display light source and 3 d display device Download PDF

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Publication number
CN104076516B
CN104076516B CN201310102264.3A CN201310102264A CN104076516B CN 104076516 B CN104076516 B CN 104076516B CN 201310102264 A CN201310102264 A CN 201310102264A CN 104076516 B CN104076516 B CN 104076516B
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China
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light beam
light
prism
optical module
light source
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CN104076516A (en
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黄俊杰
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Delta Optoelectronics Inc
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Delta Optoelectronics Inc
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Abstract

The invention discloses a kind of stereo display light source and 3 d display device, this stereo display light source comprises the first light source, curved mirror, rotation wheel, actuator, multiband filter plate and optical module.First light source is in order to provide the first light beam.Rotate wheel to be placed between the first light source and curved mirror.Rotate wheel and comprise the first penetrating region and the first echo area.Actuator is in order to rotation wheel so that the first penetrating region rotating wheel is positioned on the path of the first light beam according to sequential with the first echo area.Multiband filter plate can allow a part for the first light beam penetrate, another part reflection of the first light beam, and the wavelength of this two part is the most overlapping.Optical module is placed in the first light source and rotates between wheel, in order to the first light beam to be directed to rotate wheel, and the first light beam from the first echo area is directed to respectively with the first light beam from curved mirror that multiband filter plate is relative two.The present invention can prevent right and left eyes image from interfering with each other.

Description

Stereo display light source and 3 d display device
Technical field
The present invention relates to a kind of stereo display light source, be particularly applied to the vertical of a stereo display projection arrangement Body display light source.
Background technology
Utilizing the binocular parallax of the mankind, existing 3 d display device is to provide two of audience respectively not Three dimensional display reached by same image, such as, and stereo display projection arrangement.And existing generation different images Mode, include polarization type, red blue formula or wavelength multiplex type.
Wavelength multiplex type 3 d display device, as the term suggests, it is to provide audience to have different wavelength range Image reach three dimensional display.And because chromatic image is many green by addtive primary colours (R(red), G( Color), B(blue)) blend the shades of colour in color gamut space, the most existing wavelength multiplexing Formula 3 d display device is with two groups of three primary colors R1、G1、B1With R2、G2、B2Distinguish right and left eyes image.
Traditional wavelength multiplex type 3 d display device produces left and right eye with the colour wheel of tool filter function Bundle.The wave-length coverage of right and left eyes light beam need to have to a certain degree above accuracy, and the ripple of right and left eyes light beam Long scope is the most overlapping.If wave-length coverage slightly deviation, then the wavelength of right and left eyes light beam may be mutual Overlap, and cause the interference of right and left eyes image.
Along with the size of 3 d display device reduces day by day, the size of colour wheel must and then diminish.In other words, Light beam is got to the size of the luminous point of colour wheel and must be reduced, and the subtended angle that the substitute is light beam incidence colour wheel will Become big.But once subtended angle is excessive, colour wheel filtering wave-length coverage will displacement, right and left eyes may be caused The wavelength of light beam overlaps each other, and produces the right and left eyes image interfered with each other.
Summary of the invention
One purpose of the present invention is to provide a kind of stereo display light source, comprise the first light source, curved mirror, Rotate wheel, actuator, multiband filter plate and optical module.First light source is in order to provide the first light beam. Rotate wheel to be placed between the first light source and curved mirror.Rotate wheel and comprise the first penetrating region and the first echo area. Actuator in order to rotation wheel, such as one motor so that rotate wheel the first penetrating region with first reflection District is positioned on the path of the first light beam according to sequential.Multiband filter plate can allow a part for the first light beam wear Thoroughly, another part reflection of the first light beam, and the wavelength of this two part is the most overlapping.Optical module is put Between the first light source and rotation wheel, take turns in order to be directed to the first light beam rotate, and will be anti-from first Penetrate that first light beam in district is directed to respectively with the first light beam from curved mirror that multiband filter plate is relative two Face so that the light of the part of the first light beam arrives exit positions by multiband filter plate, and the first light The light of another part of bundle is reflected by multiband filter plate and arrives exit positions.
In one or more embodiment, stereo display light source has an optical axis.First light beam is beaten to rotation The position deviation optical axis of wheel.
In one or more embodiment, optical module comprises the first prism, the second prism, prism With at least one collecting lens.First prism has first plane of incidence and exiting surface.First light source adjoins first The plane of incidence is arranged, and exit positions adjoins exiting surface and arranges.One is defined between second prism and the first prism First gap.Multiband filter plate is placed between the second prism and prism.Collecting lens is placed in second Between prism and rotation wheel.
In one or more embodiment, optical module comprise the first prism, the second prism, reflecting mirror with At least one collecting lens.First prism has first plane of incidence and exiting surface.First light source adjoins first and enters Face of penetrating is arranged, and exit positions adjoins exiting surface and arranges.One the is defined between second prism and the first prism One gap.Multiband filter plate is placed between the second prism and reflecting mirror.Collecting lens is placed in the second prism And rotate between wheel.
In one or more embodiment, the normal of first plane of incidence of the first light beam and the first prism intersects One angle.
In one or more embodiment, actuator makes to rotate the first reflection position of wheel in the first sequential On the path of the first light beam, and the first penetrating region is made to be positioned at the first light beam according to sequential in the second sequential On path.
In one or more embodiment, when the first sequential, the first light beam beam incident optical module, and quilt It is directed to rotate the first echo area of wheel, is then reflected back optical module by the first echo area, afterwards by light Learn module and be directed to multiband filter plate so that after the first light beam of part passes through multiband filter plate, by Optical module is directed to exit positions.
In one or more embodiment, when the second sequential, the first light beam penetrates and rotates first wearing of wheel Thoroughly district and arrive curved mirror.
In one or more embodiment, when the second sequential, the first light beam beam incident optical module, and quilt It is directed to rotate the first penetrating region of wheel.First light beam penetrates the first penetrating region and arrives curved mirror, then Returned optical module by curved mirror reflection, be therefore directed to multiband filter plate by optical module so that another First light beam of part is reflected by multiband filter plate, and is directed to exit positions by optical module once again.
In one or more embodiment, stereo display light source also comprises secondary light source, in order to provide second Light beam.Rotate wheel and also comprise the second penetrating region and the second echo area.Actuator is also with so that rotating wheel Second penetrating region and the second echo area are positioned on the path of the second light beam according to sequential.Multiband filter plate can also The part enough allowing the second light beam penetrates, another part reflection of the second light beam, and the wavelength of this two part The most overlapping.Optical module is also placed in secondary light source and rotates between wheel, also in order to be led by the second light beam Cause rotation wheel, and the light beam from the second echo area is guided respectively with the light beam from the second penetrating region To relative two of multiband filter plate so that the light of the part of the second light beam is by multiband filter plate Arrive exit positions, and the light of another part of the second light beam is reflected by multiband filter plate and arrives out light Position.
In one or more embodiment, stereo display light source has an optical axis.First light beam is beaten to rotation The position deviation optical axis of wheel is to side, and the second light beam is beaten to rotating the position deviation optical axis of wheel to relative Side.
In one or more embodiment, optical module comprise the first prism, the second prism, prism, 4th prism and at least one collecting lens.First prism has first plane of incidence and exiting surface.First light source Adjoin first plane of incidence to arrange, and exit positions adjoins exiting surface and arranges.Second prism and the first prism it Between define the first gap.Multiband filter plate is placed between the second prism and prism.4th prism with The second gap is defined between prism.4th prism has second plane of incidence, and secondary light source adjoins second The plane of incidence is arranged.Collecting lens is placed in the second prism and rotates between wheel.
In one or more embodiment, the normal of the first light beam and first plane of incidence intersects the first angle, And second the normal of light beam and second plane of incidence intersect the second angle.
In one or more embodiment, the first penetrating region is along radial direction and the second echo area phase rotating wheel Neighbour is arranged, and the first echo area is disposed adjacent along the radial direction rotating wheel with the second penetrating region.
In one or more embodiment, stereo display light source has an optical axis.Rotate the first of wheel to penetrate District and the first echo area are positioned on optical axis according to sequential.
In one or more embodiment, this actuator makes to rotate the first echo area of wheel in the first sequential It is positioned on the path of the first light beam, and the second penetrating region is positioned on the path of the second light beam.In the second sequential First penetrating region is positioned on the path of the first light beam according to sequential, and the second echo area is positioned at according to sequential On the path of two light beams.
In one or more embodiment, when the first sequential, the second light beam penetrates and rotates second wearing of wheel Thoroughly district and arrive curved mirror.
In one or more embodiment, when the first sequential, the second light beam beam incident optical module, and quilt Being directed to rotate the second penetrating region of wheel, the second light beam penetrates the second penetrating region and arrives curved mirror, then Returned optical module by curved mirror reflection, be therefore directed to multiband filter plate by optical module so that part The second light beam by after multiband filter plate, optical module be directed to exit positions.
In one or more embodiment, when the second sequential, the second light beam beam incident optical module, and quilt It is directed to rotate the second echo area of wheel, is then reflected back optical module by the second echo area, afterwards by light Learn module and be directed to multiband filter plate so that second light beam of another part is reflected by multiband filter plate, And it is directed to exit positions by optical module once again.
In one or more embodiment, stereo display light source also comprises planoconvex lens, be placed in rotation wheel with Between curved mirror.
In one or more embodiment, curved mirror is coquille.
In one or more embodiment, stereo display light source also comprises colour wheel, is placed in exit positions, uses To filter the light arriving at exit positions of a part.
Another object of the present invention is to provide a kind of 3 d display device, comprise above-mentioned stereo display light Source and optical modulator body.Optical modulator body comprises at least one spectroscope, multiple liquid crystal panel and light-combining prism. Spectroscope is placed in exit positions, in order to be divided into many by the first light beam of part with first light beam of another part Individual primary colour beam.Liquid crystal panel is in order to form multiple image strip respectively by multiple primary colour beams.Close light rib Mirror is in order to collect image strip and to be projected to camera lens.
The beneficial effects of the present invention is, because of the stereo display light source of an embodiment of the present invention, it rotates Wheel does not have the function of filtering, and therefore its size is little than general colour wheel, contributes to reducing solid The overall dimensions of display light source.Add the first light beam and arrive multiband filtering with the state close to directional light Sheet, the incident angles frequency range filter plate that the i.e. first light beam can be less, the therefore wavelength of right and left eyes light beam Scope can be avoided overlapping each other, to prevent right and left eyes image from interfering with each other.
Accompanying drawing explanation
Fig. 1 illustrates the light path signal coming from the first sequential according to the stereo display light of an embodiment of the present invention Figure.
Fig. 2 illustrates the stereo display light of Fig. 1 and comes from the light path schematic diagram of the second sequential.
Fig. 3 illustrates the front view rotating wheel of Fig. 1.
Fig. 4 illustrates the spectrogram of the multiband filter plate of Fig. 1.
Fig. 5 illustrates the stereo display light of another embodiment of the present invention and comes from the light path signal of the first sequential Figure.
Fig. 6 illustrates the stereo display light of a further embodiment of the present invention and comes from the light path signal of the first sequential Figure.
Fig. 7 illustrates the 3 d display device light path schematic diagram in the first sequential of an embodiment of the present invention.
Fig. 8 illustrates and comes from the light path of the first sequential according to the stereo display light of a further embodiment of this invention and show It is intended to.
Fig. 9 illustrates the stereo display light of Fig. 8 and comes from the light path schematic diagram of the second sequential.
Figure 10 illustrates the front view rotating wheel of Fig. 8.
Wherein, description of reference numerals is as follows:
10,20,25,30: stereo display light source
12,32: optical axis
100: the first light sources
110,120,130,160,170,180: path
150: secondary light source
200: curved mirror
300,302: rotate wheel
310: the first echo areas
320: the first penetrating regions
330: the second echo areas
340: the second penetrating regions
400: actuator
500: multiband filter plate
600,601,602: optical module
610: the first prisms
612: the first planes of incidence
614: exiting surface
616: the first gaps
620: the second prisms
630: the prisms
636: the second gaps
640: the four prisms
642: the second planes of incidence
650,660: collecting lens
670,922,924,926: reflecting mirror
700: exit positions
710: colour wheel
720: colour wheel actuator
730,962,964,966,972,974,976: lens
740: light guide
800: planoconvex lens
900: optical modulator body
912,914: spectroscope
932,934,936: liquid crystal panel
940: light-combining prism
950: lens arra
980: camera lens
B1, B2, G1, G2, R1, R2: region
Detailed description of the invention
Multiple embodiments of the present invention, as clearly stated, many practices will be disclosed below with accompanying drawing On details will be explained in the following description.It should be appreciated, however, that the details in these practices is not Application is to limit the present invention.It is to say, in some embodiments of the present invention, thin in these practices Joint is non-essential.Additionally, for the sake of simplifying accompanying drawing, some existing usual structures and element are at accompanying drawing Middle will illustrate it in the way of simple signal.
Referring to Fig. 1 and Fig. 2.Fig. 1 illustrates the stereo display light according to an embodiment of the present invention Source 10 is in the light path schematic diagram of a wherein sequential.Fig. 2 illustrate the stereo display light source 10 according to Fig. 1 in The wherein light path schematic diagram of another sequential.Stereo display light source 10 comprise the first light source 100, curved mirror 200, Rotate wheel 300, actuator 400, multiband filter plate 500 and optical module 600.First light source 100 In order to provide the first light beam, wherein the first light source 100 is white light source.First light beam enters optical module After 600, it is directed to rotate wheel 300 by optical module 600.In the first sequential, the first light beam is rotated wheel 300 are reflected back optical module 600, and are directed to multiband filter plate by optical module 600 according to path 120 500.Multiband filter plate 500 can allow a part for the first light beam penetrate, part the first light that this penetrates Bundle can become left eye light beam.And left eye light beam is then directed to target location 700 by optical module 600.
Then refer to Fig. 2.In the second sequential, the first light beam penetrates rotation wheel 300 and arrives curved mirror 200.First light beam is reflected back optical module 600 by curved mirror 200, and by optical module 600 according to path 130 are directed to multiband filter plate 500.Multiband filter plate 500 makes another part of the first light beam anti- Penetrating, part first light beam of this reflection can become right eye light beam, and the wavelength of right eye light beam is with above-mentioned The wavelength of left eye light beam is the most overlapping.Then right eye light beam is directed to target location by optical module 600 700.Consequently, it is possible to via the stereo display light source 10 of present embodiment, left and right can be obtained according to sequential Eye bundle.It should be noted that in the light path schematic diagram depicted in Fig. 1 and Fig. 2, dotted arrow path The most schematically illustrate the path of passing through of the first light beam.
It should be noted, although the light beam arriving exit positions 700 in Fig. 1 is defined as left eye light beam, And the light beam arriving exit positions 700 in Fig. 2 is defined as right eye light beam, but other embodiment party In formula, the light beam arriving exit positions 700 in Fig. 1 can be defined as right eye light beam, and arrives in Fig. 2 The light beam of exit positions 700 can be defined as left eye light beam, and the present invention is not limited thereto.
Fig. 3 illustrates the front view rotating wheel 300 of Fig. 1.Specifically, rotate wheel 300 and comprise first Echo area 310 and the first penetrating region 320.Actuator 400(is as depicted in Fig. 1) in order to drive rotation wheel 300 rotate so that the first echo area 310 and the first penetrating region 320 are respectively when the first sequential is with second Tagmeme is passed through on path in the first light beam, consequently, it is possible to the first light beam can be rotated wheel 300 according to sequential Reflection, or penetrate rotation wheel 300.
Fig. 4 illustrates the spectrogram of the multiband filter plate 500 of Fig. 1.For the sake of clarity, the district in figure Territory B1 represent be about 410nm～445nm wave-length coverage, region B2 represent be about 445nm～ The wave-length coverage of 485nm, region G1 represents the wave-length coverage being about 485nm～530nm, district Territory G2 represent be about 530nm～570nm wave-length coverage, region R1 represent be about 570nm～ The wave-length coverage of 625nm, and region R2 represents the wave-length coverage being about 625nm～680nm.Many The wave-length coverage penetrating Yu reflecting of frequency range filter plate 500 is not limited to the most each single-wide, i.e. multiband Filter plate 500 is designed to make the light of multiple wave-length coverage penetrate (the most in the present embodiment, The light of region B1, G1 and R1 it is longer than for ripple), and allow the luminous reflectance of multiple wave-length coverage (such as exist In present embodiment, be longer than the light of region B2, G2 and R2 for ripple), therefore ripple be longer than region B1, The light of G1 Yu R1 i.e. forms above-mentioned left eye light beam, and ripple is longer than the light of region B2, G2 and R2 i.e. Form above-mentioned right eye light beam.Illustrate it should be noted that the wave-length coverage in above-mentioned each region is all only, And be not used to limit the present invention.Those skilled in the art, should be depending on being actually needed, bullet The wave-length coverage penetrating Yu reflecting of Sexual behavior mode multiband filter plate 500.
Consequently, it is possible to by above-mentioned structure, stereo display light source 10 can produce left and right eye according to sequential Bundle.Next will be described in detail and how to reach left and right eye by the stereo display light source 10 of present embodiment Bundle.
Go back to Fig. 1.Optical module 600 comprises first prism the 610, second prism 620, prism 630 and collecting lens 650 and 660.First prism 610 has the first plane of incidence 612 and exiting surface 614.First light source 100 adjoins first plane of incidence 612 and arranges, and exit positions 700 adjoins exiting surface 614 are arranged.The first gap 616 is defined between second prism 620 and the first prism 610.Multiband filters Sheet 500 is placed between the second prism 620 and prism 630.Collecting lens 650 and 660 is placed in Between two prisms 620 and rotation wheel 300.
In the first sequential, actuator 400 will rotate the first echo area 310(of wheel 300 as depicted in fig. 3 Show) rotate passing through on path to the first light beam.The first light beam sent by the first light source 100 is according to road Footpath 110 and reach rotation wheel 300 on.First the first light beam is by the first incident first prism of the plane of incidence 612 610, with incident first gap 616 of the angle of total reflection at the interface less than the first gap 616, therefore penetrate the One gap 616.First light beam is through the second prism 620 afterwards, and is assembled by collecting lens 650 and 660 To the first echo area 310 rotating wheel 300.First light beam is then by the first echo area 310 reflected light Learn module 600, be directed to exit positions 700 by optical module 600 along path 120.First first Light beam is diverged to nearly directional light by collecting lens 660 and 650 and injects prism 630.Afterwards first Light beam is reflexed to multiband filter plate 500 by prism 630, therefore a part the first light beam ( In present embodiment, it is longer than region B1, G1 of Fig. 4 and the light of R1 for ripple) penetrate multiband filter plate 500 and become left eye light beam.Left eye light beam enters the second prism 620, and then with less than the first gap Incident first gap 616 of the angle of the angle of total reflection at the interface of 616.Therefore the first gap 616, warp are penetrated Cross the first prism 610 and arrive exit positions 700.
Then Fig. 2 is gone back to.In the second sequential, actuator 400 will rotate the first penetrating region of wheel 300 320(shows as depicted in fig. 3) rotate passing through on path to the first light beam.Sent by the first light source 100 First light beam reaches according to path 110 on rotation wheel 300.First light beam then penetrates the first penetrating region 320 and arrive curved mirror 200, be directed to along path 130 with optical module 600 by curved mirror 200 Exit positions 700.First the first light beam reflected by curved mirror 200 is passed through by the outside rotating wheel 300 After, diverged to nearly directional light by collecting lens 660 and 650 and inject the second prism 620.First light beam With incident first gap 616 of the angle of the angle of total reflection at the interface more than the first gap 616, therefore by the One gap 616 reflexes to multiband filter plate 500.First light beam of another part is (in present embodiment In, be longer than region B2, G2 of Fig. 4 and the light of R2 for ripple) reflected by multiband filter plate 500 and Become right eye light beam.Right eye light beam is subsequently returning to the second prism 620, and with less than the first gap 616 Incident first gap 616 of the angle of the angle of total reflection at interface, therefore through the first gap 616, through first Prism 610 and arrive exit positions 700.As long as consequently, it is possible to actuator 400 repeats above-mentioned according to sequential Mode rotation wheel 300, stereo display light source 10 can continuously generate out right and left eyes light beam.
Summary, because of the functions that wheel 300 does not have filtering that rotate of present embodiment, therefore first The luminous point that light beam is beaten rotating on wheel 300 can be less, consequently, it is possible to rotate the size of wheel 300 than one As colour wheel little, contribute to reducing the size of stereo display light source 10.Add whether along path 120 or 130, the first light beam is all the state arrival multiband filter plate 500 with nearly directional light, i.e. first Light beam can be less incident angles multiband filter plate 500, therefore produced right and left eyes light beam Wave-length coverage can avoid displacement to overlap each other, to prevent right and left eyes image from interfering with each other.
In one or more embodiment, the first light beam and first plane of incidence of the first prism 610 can be designed The normal of 612 intersects an angle, the i.e. first light beam not with forward entrance first plane of incidence 612, therefore One light beam beats the optical axis 12 that will deviate stereo display light source 10 to the position rotating wheel 300.Such one Come, the first light beam propagated along path 110 after penetrating rotation wheel 300, anti-via curved mirror 200 Penetrating, the outside (i.e. rotating the wheel 300 opposite side relative to optical axis 12) of the runner 300 that can spin returns to Optical module 600.Further, because of the first light beam not with forward entrance first plane of incidence 612, because of This first light beam penetrates the first gap along path 110 with the angle of total reflection less than the interface in the first gap 616 After 616, through the multiple reflections of optical module 600 with curved mirror 200, and deviation optical axis 12 is propagated Relation, when the first light beam returns to the first gap 616 along path 130, its incident first gap 616 Angle of incidence just can be more than the angle of total reflection at the interface in the first gap 616, therefore can be by the first gap 616 Reflection.And then after the reflection through multiband filter plate 500, the first light beam and the first gap 616 Between angle once again less than the angle of total reflection at interface in the first gap 616 so that the first light beam is able to again Degree is by the first gap 616.
In the present embodiment, although utilize curved mirror 200 i.e. to can reach the effect of reflection the first light beam, But the size of curved mirror 200 is decided by penetrate the dispersion angle of the first light beam rotating wheel 300.Even First beam divergence is excessive, then the size of curved mirror 200 also must and then strengthen.Therefore in other reality Executing in mode, stereo display light source 10 can also comprise planoconvex lens 800, is placed in rotation wheel 300 and curved surface Between mirror 200, in order to first to assemble the first light beam penetrating rotation wheel 300.Arrive curved mirror thus First light beam of 200 has the less angle of divergence, then the size of curved mirror 200 just can reduce.It addition, Curved mirror 200 can be a coquille, and the present invention is not limited thereto.
It should be noted that the collecting lens 650 and 660 of the optical module 600 of Fig. 1 Yu Fig. 2, its number Amount is only and illustrates, and is not used to limit the present invention.The purposes of collecting lens 650 and 660 is gathering light beam, Make the first light beam beat to rotate wheel 300 luminous point can reduce.The most in other implementations, The quantity of collecting lens can be one or more than two, those skilled in the art, Visually it is actually needed, the quantity of the elastic collecting lens selecting optical module 600.
In one or more embodiment, for convenience's sake, stereo display light source 10 also can be from three-dimensional aobvious Show that state switches to two dimension display state.Go back to Fig. 1.When the stereo display light source in present embodiment 10 switch to two dimension display state time, actuator 400 can make rotation wheel 300 the first echo area 310(such as Depicted in Fig. 3) it is fixed on the passing through on path of the first light beam, and multiband filter plate 500 is removed. Therefore the first light beam sent by the first light source 100, arrives after rotating wheel 300, quilt along path 110 Rotate wheel 300 and be reflected back optical module 600.Then the first light beam is along path 120, through prism 630 and second adjoiner (position before i.e. multiband filter plate 500 is removed) of prism 620, And arrive exit positions 700.Because in the 2 d display mode, the first light beam does not filter through multiband Sheet 500, the first light beam of the most all wave bands all can arrive exit positions 700.
But two dimensional mode is not limited with above-mentioned structure.Refer to Fig. 2, in other enforcement In mode, actuator 400 can make the first penetrating region 320(of rotation wheel 300 show as depicted in fig. 3) solid Due to passing through on path of the first light beam, and the adjoiner of the second prism 620 and prism 630 can face Insert a reflecting mirror to the second prism 620, and this reflecting mirror can adjoin the arbitrary of multiband filter plate 500 Side is arranged.Therefore the first light beam sent by the first light source 100, arrives along path 110 and rotates wheel 300 After, penetrate the first penetrating region 320 and arrive curved mirror 200, be reflected back optics by curved mirror 200 afterwards Module 600.Then the first light beam is along path 130, the second prism 620 reflex to reflecting mirror, therefore It is reflected by a reflector exit positions 700.In the present embodiment, because the first light beam is through reflecting mirror Reflection, the first light beam of the most all wave bands all can arrive exit positions 700.
Then refer to Fig. 5, it illustrates the stereo display light source 20 of another embodiment of the present invention in first The light path schematic diagram of sequential.Present embodiment is optical module from the different places of the embodiment of Fig. 1 Element.In the present embodiment, optical module 601 comprise first prism the 610, second prism 620, Collecting lens 650 and 660 and reflecting mirror 670.First prism 610 have first plane of incidence 612 with Exiting surface 614.First light source 100 adjoins first plane of incidence 612 and arranges, and exit positions 700 adjoins Exiting surface 614 is arranged.The first gap 616 is defined between second prism 620 and the first prism 610.Many Frequency range filter plate 500 is placed between the second prism 620 and reflecting mirror 670.Collecting lens 650 and 660 It is placed in the second prism 620 and rotates between wheel 300.
Therefore in the first sequential, actuator 400 will rotate first echo area 310(such as Fig. 3 of wheel 300 Depicted) rotate passing through on path to the first light beam.The first light beam sent by the first light source 100 depends on Reach according to path 110 on rotation wheel 300.First light beam is then by the first echo area 310 reflected light Learn module 601, be directed to exit positions 700 by optical module 601 along path 120.First first Light beam is diverged to nearly directional light and directive reflecting mirror 670 by collecting lens 660 and 650.First light afterwards Restrainting and reflexed to multiband filter plate 500 by reflecting mirror 670, therefore the first light beam of a part is (in this reality Execute in mode, be longer than region B1, G1 of Fig. 4 and the light of R1 for ripple) penetrate multiband filter plate 500 And become left eye light beam.Left eye light beam enters the second prism 620, and then with less than the first gap 616 Incident first gap 616 of angle of the angle of total reflection at interface.Therefore through the first gap 616, Jing Guo One prism 610 and arrive exit positions 700.
And when the second sequential, the first light beam forms the details of right eye light beam because of the embodiment phase with Fig. 2 With, only prism 630 is replaced with the reflecting mirror 670 of Fig. 5, the most just repeats no more.It addition, As for the stereo display light source 20 of present embodiment, remaining details all with the embodiment of Fig. 1 Yu Fig. 2 Identical, the most also repeat no more.
Then refer to Fig. 6, it illustrates the stereo display light source 25 of a further embodiment of the present invention in first The light path schematic diagram of sequential.Although Fig. 6 is diagrammatically only by the optical circuit path of left eye light beam, although it is understood that, Right eye light beam light path after leaving exiting surface 614 is identical with left eye light path.In order to by above-mentioned right and left eyes Light beam is further divided into the right and left eyes light beam of each primary colors, and stereo display light source 25 can also comprise colour wheel 710 With colour wheel actuator 720.Colour wheel 710 is placed in exit positions 700(as depicted in Fig. 1), in order to filter The right and left eyes light beam of a part.And colour wheel actuator 720 is in order to rotating color wheel 710.Colour wheel 710 comprises Multiple filter areas, when colour wheel actuator 720 rotating color wheel 710, these filter areas are positioned at according to sequential Passing through on path of right and left eyes light beam.Therefore colour wheel 710 can further according to sequential by a left side (or right) eye Light beam is divided into a left side (or right) the eye bundle of each primary colors.Specifically, as a example by red green blue tricolor, color Wheel 710 is optional comprises red primaries filter area, green primary color filter area and blue primary filter area.When Fig. 3's Rotate wheel 300 the first echo area 310 be positioned at the first light beam pass through path time, arrive exit positions 700 Light beam be left eye light beam.Left eye light beam, after colour wheel 710, can be broken into further according to sequential Left eye red primaries light beam (the region R1 of its wavelength corresponding diagram 4), left eye green primary color light beam (its wavelength pair Answer the region G1 of Fig. 4) and left eye blue primary light beam (the region B1 of its wavelength corresponding diagram 4).And work as Fig. 3 rotate wheel 300 the first penetrating region 320 be positioned at the first light beam pass through path time, arrive out light The light beam of position 700 is right eye light beam.Therefore right eye light beam is after colour wheel 710, can be according to sequential It is broken into further right eye red primaries light beam (the region R2 of its wavelength corresponding diagram 4), right eye green primary color light Bundle (the region G2 of its wavelength corresponding diagram 4) and the right eye blue primary light beam (region of its wavelength corresponding diagram 4 B2).Wherein, the speed of rotation of colour wheel 710 is rotate wheel 300 two times, in other words, works as rotation (the first echo area 310 of wheel 300 and the first penetrating region 320 is rotated wherein when taking turns 300 half rotation One of be positioned at time in conduct path of the first light beam), colour wheel 710 i.e. have rotated a circle (i.e. colour wheel 710 Red primaries filter area, green primary color filter area and blue primary filter area be the most sequentially positioned at right and left eyes light beam Pass through on path).
Although it addition, above-mentioned colour wheel 710 is as a example by three primary colors, but the present invention is not limited.? In one or more embodiment, colour wheel 710 can add xanthan color filter area, to increase the bright-coloured of picture Degree.And multiband filter plate 500 also corresponding can have different spectrograms.It should be noted that above-mentioned institute The color of the primary colors filter area lifted is only and illustrates, and is not used to limit the present invention, technology neck belonging to the present invention Technical staff in territory, should be depending on being actually needed, the color of elastic design primary colors filter area.
In one or more embodiment, stereo display light source 25 can also comprise lens 730 and light guide 740.Lens 730 are placed between exiting surface 614 and the colour wheel 710 of the first prism 610, and light guide 740 are placed in the colour wheel 710 side relative to lens 730.Light guide 740 can be by by colour wheel 710 Each right and left eyes primary colour beam homogenization, to improve beam quality, but the present invention is not limited.
Although the stereo display light source 25 of Fig. 6 comprises optical module 600, but in other embodiments, The optical module 600 of stereo display light source 25 also can be replaced optical module 601 (showing as shown graphically in fig 5), The present invention is not limited.As for the stereo display light source 25 of present embodiment, remaining details all with figure 1 is identical with the embodiment of Fig. 2, the most just repeats no more.
Another aspect of the present invention provides a kind of 3 d display device.Refer to Fig. 7, it illustrates the present invention The 3 d display device of one embodiment is in the light path schematic diagram of the first sequential.Although Fig. 7 is diagrammatically only by left eye The optical circuit path of light beam, although it is understood that, right eye light beam light path after leaving stereo display light source 10 Identical with left eye light path.3 d display device comprises above-mentioned stereo display light source 10 and optical modulator body 900.Optical modulator body 900 is in order to become many by right and left eyes beam modulation produced by stereo display light source 10 Individual right and left eyes image.Optical modulator body 900 comprises spectroscope 912 and 914, liquid crystal panel 932,934 With 936 and light-combining prism 940.Spectroscope 912 is placed in the exit positions 700 of stereo display light source 10 (as depicted in Fig. 1).In order to right and left eyes light beam is divided into multiple primary colour beam, and spectroscope 914 is used With further light splitting.Liquid crystal panel 932,934 with 936 in order to multiple primary colour beams are formed multiple respectively Image strip.Light-combining prism 940 is in order to collect image strip and to be projected to camera lens 980.
In one or more embodiment, optical modulator body 900 also can comprise reflecting mirror 922,924 with 926, lens arra 950 and multiple lens 962,964,966,972,974 and 976.Reflection Mirror 922,924 and 926 is respectively in order to be directed to liquid crystal panel 932 and 936 by the primary colour beam of part. Lens arra 950 is placed in the exiting surface of spectroscope 912 and the first prism 610 of stereo display light source 10 Between 614, in order to by right and left eyes beam uniformity.Lens 962 are placed in lens arra 950 and spectroscope Between 912, lens 964 are placed between spectroscope 914 and illuminator 924, and lens 966 are placed in reflection Between mirror 924 and 926, lens 972 are placed between reflecting mirror 922 and liquid crystal panel 932, lens 974 It is placed between spectroscope 914 and liquid crystal panel 934, and lens 976 are placed in reflecting mirror 926 and liquid crystal Between panel 936.
Specifically, as a example by red green blue tricolor, after stereo display light source 10 produces left eye light beam, Left eye light beam arrives spectroscope 912 by lens arra 950 and lens 962.Spectroscope 912 can be by Left eye light beam is first divided into left eye blue primary light beam and left eye xanthan color beam.Left eye blue primary light beam is reflected To reflecting mirror 922, arrive liquid crystal panel 932 through lens 972.Liquid crystal panel 932 can be by a left side Eye blue primary beam modulation becomes left eye blue primary image.Left eye blue primary image is from light-combining prism 940 afterwards Side enters, and is then directed to camera lens 980.On the other hand, left eye xanthan color beam then arrives point Light microscopic 914.Left eye xanthan color beam is divided into left eye green primary color light beam and left eye by spectroscope 914 further Red primaries light beam.Left eye green primary color light beam is then reflected onto lens 974 and arrives liquid crystal panel 934. Left eye green primary color beam modulation is become left eye green primary color image by liquid crystal panel 934.Left eye green primary color shadow afterwards As entering from light-combining prism 940 opposite side, and then it is directed to camera lens 980.On the other hand, left eye Red primaries light beam is then passed through lens 964,966 and 976 and is directed to liquid crystal by reflecting mirror 924 and 926 Panel 936.Left eye red primaries beam modulation is become left eye red primaries image by liquid crystal panel 936.Rear left Furious primary colors image enters from the yet another side of light-combining prism 940, and is then directed to camera lens 980.As This one, as long as sequentially open liquid crystal panel 932,934 and 936, can in camera lens 980 front sequentially Obtain left eye blue primary image, left eye green primary color image and left eye red primaries image.As for right eye light beam shape Become the process of right eye blue primary image, right eye green primary color image and right eye red primaries image, because of with left eye light Shu Xiangtong, the most just repeats no more.
Although the 3 d display device of Fig. 7 comprises stereo display light source 10, but in other embodiments, The stereo display light source 10 of 3 d display device also can be replaced stereo display light source 20 (as shown graphically in fig 5 Show), the present invention is not limited.As for the 3 d display device of present embodiment, its stereo display light source Remaining details of 10 is all identical with the embodiment of Fig. 1 with Fig. 2, the most just repeats no more.
In one or more embodiment, stereo display light source can use two groups of light sources to increase light intensity. Specifically, referring to Fig. 8 and Fig. 9.Fig. 8 illustrates standing according to a further embodiment of this invention Body display light source 30 is in the light path schematic diagram of the first sequential.Fig. 9 illustrates the stereo display light source 30 of Fig. 8 Light path schematic diagram in the second sequential.It should be noted that at the light path schematic diagram depicted in Fig. 8 and Fig. 9 In, dotted arrow path the most schematically illustrates the path of passing through of the first light beam, and solid arrow path is all Schematically illustrate the path of passing through of the second light beam.Stereo display light source 30 comprise the first light source 100, Two light sources 150, curved mirror 200, rotation wheel 302, actuator 400, multiband filter plate 500 and light Learn module 602.First light source 100 is in order to provide the first light beam, and secondary light source 150 is in order to provide Two light beams, wherein the first light source 100 can be all white light source with secondary light source 150.First light beam enters After optical module 602, it is directed to rotate wheel 302 by optical module 602.
Refer to Fig. 8.In the first sequential, the first light beam is rotated wheel 302 and is reflected back optical module 602, And it is directed to multiband filter plate 500 by optical module 602 according to path 120.Multiband filter plate 500 The part that can allow the first light beam penetrates, and part the first light beam that this penetrates can become left eye light beam, And then it is directed to target location 700 by optical module 602.Same sequential, the second light beam penetrates rotation Take turns 302 and arrive curved mirror 200.Second light beam is reflected back optical module 602 by curved mirror 200, and quilt Optical module 602 is directed to multiband filter plate 500 according to path 170.Multiband filter plate 500 makes A part for second light beam penetrates, and part the second light beam that this penetrates also becomes left eye light beam, then left eye Light beam is directed to target location 700 by optical module 602.Consequently, it is possible to the first light beam and the second light beam In the first sequential, all form left eye light beam, the therefore amount of light of the stereo display light source 30 of present embodiment It can be the twice of the stereo display light source 10 of Fig. 1.
Then refer to Fig. 9.In the second sequential, the first light beam penetrates rotation wheel 302 and arrives curved mirror 200.First light beam is reflected back optical module 602 by curved mirror 200, and by optical module 602 according to path 130 are directed to multiband filter plate 500.Multiband filter plate 500 makes another part of the first light beam anti- Penetrating, part first light beam of this reflection becomes right eye light beam, and the wavelength of right eye light beam and an above-mentioned left side The wavelength of eye bundle is the most overlapping.Then right eye light beam is directed to target location by optical module 602 700.Same sequential, the second light beam is rotated wheel 302 and is reflected back optical module 602, and by optical module 602 are directed to multiband filter plate 500 according to path 180.Multiband filter plate 500 can allow the second light beam A part reflection, this reflection part second light beam also become right eye light beam.Then right eye light beam is by light Learn module 602 and be directed to target location 700.Consequently, it is possible to the first light beam and the second light beam are all second Forming right eye light beam in sequential, therefore the amount of light of the stereo display light source 30 of present embodiment is Fig. 2 The twice of stereo display light source 10.
It should be noted, although the light beam arriving exit positions 700 in Fig. 8 is defined as left eye light beam, And the light beam arriving exit positions 700 in Fig. 9 is defined as right eye light beam, but other embodiment party In formula, the light beam arriving exit positions 700 in Fig. 8 can be defined as right eye light beam, and arrives in Fig. 9 The light beam of exit positions 700 can be defined as left eye light beam, and the present invention is not limited thereto.
Figure 10 illustrates the front view rotating wheel 302 of Fig. 8.Specifically, rotate wheel 302 and comprise first The 320, second echo area, the 310, first penetrating region, echo area 330 and the second penetrating region 340.Actuator 400 (as shown in Figure 8) in order to drive rotation wheel 302 rotation so that the first echo area 310 penetrates with first District 320 is positioned at the passing through on path of the first light beam, and the second reflection in the first sequential and the second sequential respectively District 330 and the second penetrating region 340 are positioned at the road of passing through of the second light beam respectively in the second sequential and the first sequential On footpath.Therefore the first light beam and the second light beam all can be rotated wheel 302 reflection according to sequential, or penetrate rotation Runner 302.
Next will be described in detail and how to reach right and left eyes by the stereo display light source 30 of present embodiment Light beam.Go back to Fig. 8.Optical module 602 comprises first prism the 610, second prism 620, Rhizoma Sparganii Mirror the 630, the 4th prism 640 and collecting lens 650 and 660.It is incident that first prism 610 has first Face 612 and exiting surface 614.First light source 100 adjoins first plane of incidence 612 and arranges, and exit positions 700 adjoin exiting surface 614 is arranged.The first gap is defined between second prism 620 and the first prism 610 616.Multiband filter plate 500 is placed between the second prism 620 and prism 630.4th prism Define the second gap 636 between 640 and prism 630, and the 4th prism 640 has second plane of incidence 642.Secondary light source 150 adjoins second plane of incidence 642 and arranges.Collecting lens 650 and 660 is placed in second Between prism 620 and rotation wheel 302.
In the first sequential, the first echo area 310(such as Figure 10 rotating wheel 302 is painted by actuator 400 Show) rotate passing through on path to the first light beam.The first light beam sent by the first light source 100 is according to road Footpath 110 and reach rotation wheel 302 on.First the first light beam is by the first incident first prism of the plane of incidence 612 610, with incident first gap 616 of the angle of total reflection at the interface less than the first gap 616, therefore penetrate the One gap 616.First light beam is through the second prism 620 afterwards, and is assembled by collecting lens 650 and 660 To the first echo area 310 rotating wheel 302.First light beam is then by the first echo area 310 reflected light Learn module 602, be directed to exit positions 700 by optical module 602 along path 120.First first Light beam is diverged to nearly directional light by collecting lens 660 and 650 and injects prism 630, with more than Incident second gap 636 of the angle of total reflection at the interface in two gaps 636, is therefore reflected by the second gap 636 To multiband filter plate 500.First light beam of a part (in the present embodiment, is longer than Fig. 4 for ripple The light of region B1, G1 and R1) penetrate multiband filter plate 500 and become left eye light beam.Left eye Light beam enters the second prism 620, and then with the angle of the angle of total reflection at the interface less than the first gap 616 Spend incident first gap 616.Therefore through the first gap 616, light is arrived out through the first prism 610 Position 700.
In same sequential, rotate the second penetrating region 340(of wheel 302 as depicted in Figure 10) also it is positioned at the Passing through on path of two light beams.The second light beam sent by secondary light source 150 reaches according to path 160 Rotate on wheel 302.First the second light beam is by incident 4th prism 640 of second plane of incidence 642, to be less than Incident second gap 636 of the angle of total reflection at the interface in the second gap 636, therefore penetrates the second gap 636. Second light beam is through prism 630 afterwards, and is assembled to rotating wheel 302 by collecting lens 650 and 660 The second penetrating region 340.Second light beam then penetrates the second penetrating region 340 and arrives curved mirror 200, quilt Curved mirror 200 and optical module 602 are directed to exit positions 700 along path 170.The most bent After second light beam of face mirror 200 reflection is passed through by the outside rotating wheel 302, by collecting lens 660 and 650 Diverge to nearly directional light and inject prism 630.Second light beam is with the interface more than the second gap 636 Incident second gap 636 of angle of the angle of total reflection, therefore reflexed to multiband filter by the second gap 636 Wave plate 500.A part the second light beam (in the present embodiment, for ripple be longer than Fig. 4 region B1, The light of G1 Yu R1) penetrate multiband filter plate 500 and become left eye light beam.Left eye light beam is then passed through First gap 616 and arrive exit positions 700.
Then refer to Fig. 9.In the second sequential, actuator 400 will rotate the first penetrating region of wheel 302 320(is as depicted in Figure 10) rotate passing through on path to the first light beam.Sent by the first light source 100 The first light beam reach according to path 110 rotation wheel 302 on.First light beam then penetrates first and penetrates District 320 and arrive curved mirror 200, led along path 130 with optical module 602 by curved mirror 200 Cause exit positions 700.First the first light beam reflected by curved mirror 200 returns and rotates the of wheel 302 One penetrating region 320 and again by rotate wheel 302, diverged to the most parallel with 650 by collecting lens 660 The second prism 620 is injected after light.First light beam is with the angle of total reflection at the interface more than the first gap 616 Incident first gap 616 of angle, is therefore reflexed to multiband filter plate 500 by the first gap 616.Another First light beam (in the present embodiment, being longer than region B2, G2 of Fig. 4 and the light of R2 for ripple) of part Reflected by multiband filter plate 500 and become right eye light beam.Right eye light beam is subsequently returning to the second prism 620, And with incident first gap 616 of angle of the angle of total reflection at the interface less than the first gap 616, therefore wear Cross the first gap 616, arrive exit positions 700 through the first prism 610.
In same sequential, rotate the second echo area 330(of wheel 302 as depicted in Figure 10) also it is positioned at the Passing through on path of two light beams.The second light beam sent by secondary light source 150 reaches according to path 160 Rotate on wheel 302.Second light beam is then reflected back optical module 602, by light by the second echo area 330 Learn module 602 and be directed to exit positions 700 along path 180.First the second light beam is by collecting lens 660 and 650 diverge to nearly directional light and inject the second prism 620.Second light beam is with more than the first gap Incident first gap 616 of the angle of the angle of total reflection at the interface of 616, is therefore reflexed to by the first gap 616 Multiband filter plate 500.Second light beam of another part (in the present embodiment, is longer than Fig. 4 for ripple The light of region B2, G2 and R2) reflected by multiband filter plate 500 and become right eye light beam.Right Eye bundle is subsequently returning to the second prism 620, and with the angle of total reflection at the interface less than the first gap 616 Incident first gap 616 of angle, therefore through the first gap 616, arrives out through the first prism 610 Optical position 700.As long as consequently, it is possible to actuator 400 repeats aforesaid way rotation wheel 302 according to sequential, Stereo display light source 30 can continuously generate out right and left eyes light beam.
Summary, because of the functions that wheel 302 does not have filtering that rotate of present embodiment, therefore first The luminous point that light beam and the second light beam are beaten rotating on wheel 302 can be less, consequently, it is possible to rotate wheel 302 Size is little than general colour wheel, contributes to reducing the size of stereo display light source 30.Add first Light beam and the second light beam are all to arrive multiband filter plate 500, the i.e. first light beam with the state of nearly directional light Incident angles multiband filter plate 500 that can be less with the second light beam, therefore produced right and left eyes The wave-length coverage of light beam can avoid displacement to overlap each other, to prevent right and left eyes image from interfering with each other.More very Person, by the first light source 100, secondary light source 150, rotates the wheel 302 design with optical module 602, The stereo display light source 30 of present embodiment optionally increases its amount of light.
In one or more embodiment, the first light beam and first plane of incidence of the first prism 610 can be designed The normal of 612 intersects the first angle, and the i.e. first light beam is not with forward entrance first plane of incidence 612, therefore First light beam beats the optical axis 32 that will deviate stereo display light source to the position rotating wheel 302.Consequently, it is possible to The first light beam propagated along path 110 is after penetrating rotation wheel 302, via the reflection of curved mirror 200, I.e. deviate to the opposite side of optical axis 32 and again penetrate rotation wheel 302, return to optical module 602.Change sentence Talking about, the first penetrating region 320 need to be positioned on optical axis 32, the most therefore in the first sequential, and the first echo area 310 also can be positioned on optical axis 32 via the rotation of actuator 400.Further, because of the first light beam also Non-with forward entrance first plane of incidence 612, therefore the first light beam along path 110 with less than the first gap 616 The angle of total reflection at interface penetrate the first gap 616 after, through optical module 602 and curved mirror 200 Multiple reflections, and the relation that deviation optical axis 32 is propagated, the first light beam returns to the first gap along path 130 When 616, the angle of incidence in its incident first gap 616 just can be more than the complete of the interface in the first gap 616 Angle of reflection, therefore can be reflected by the first gap 616.And then anti-through multiband filter plate 500 After penetrating, the angle between the first light beam and the first gap 616 is less than the interface in the first gap 616 once again The angle of total reflection so that the first light beam is able to once again by the first gap 616.
It is similar to, goes back to Fig. 8.Second plane of incidence 642 of the second light beam and the 4th prism 640 can be designed Normal intersect the second angle, the i.e. second light beam not with forward entrance first plane of incidence 642, therefore Two light beams beat the optical axis 32 that will deviate stereo display light source to the position rotating wheel 302.Consequently, it is possible to The second light beam propagated along path 160 is after penetrating rotation wheel 302, via the reflection of curved mirror 200, Can spin and return to optical module 602 outside runner 302.Further, because of the second light beam not with Forward entrance second plane of incidence 642, therefore the second light beam along path 160 with less than the second gap 636 After the angle of total reflection at interface penetrates the second gap 636, through optical module 602 and curved mirror more than 200 Secondary reflection, and the relation that deviation optical axis 32 is propagated, the second light beam returns to the second gap along path 170 When 636, the angle of incidence in its incident second gap 636 just can be more than the complete of the interface in the second gap 636 Angle of reflection, therefore can be reflected by the second gap 636.
Go back to Figure 10.In order in the first sequential so that the first light beam can be beaten to rotating wheel 302 First echo area 310, and the second light beam can beat to rotate wheel 302 the second penetrating region 340；Second In sequential so that the first light beam can be beaten to the first penetrating region 320 rotating wheel 302, and the second light beam Can beat to the second echo area 330 rotating wheel 302, the first penetrating region 320 is along rotating wheel 302 Radially can be disposed adjacent with the second echo area 330, and the first echo area 310 is along the footpath rotating wheel 302 To being disposed adjacent with the second penetrating region 340.
Go back to Fig. 8.In the present embodiment, although utilize curved mirror 200 i.e. to can reach reflection first Light beam and the effect of the second light beam (as depicted in the light path of Fig. 9), but the size of curved mirror 200 is certainly Due to penetrating the first light beam and the dispersion angle of the second light beam rotating wheel 302, the even first light beam and the Two beam divergences are excessive, then the size of curved mirror 200 also must and then strengthen.Therefore in other enforcement In mode, stereo display light source 30 can further include planoconvex lens 800, is placed in rotation wheel 302 and curved mirror Between 200, in order to first to assemble the first light beam and the second light beam penetrating rotation wheel 302.Arrive thus The first light beam and the second light beam that reach curved mirror 200 have the less angle of divergence, the then chi of curved mirror 200 Very little just can reduce.It addition, curved mirror 200 can be a coquille, the present invention is not limited thereto.
It should be noted that the collecting lens 650 and 660 of the optical module 602 of Fig. 8 Yu Fig. 9, its number Amount is only and illustrates, and is not used to limit the present invention.The purposes of collecting lens 650 and 660 is gathering light beam, Make the first light beam and the second light beam beat to rotate wheel 302 luminous point can reduce.Therefore in other reality Executing in mode, the quantity of collecting lens can be one or more than two, the technical field of the invention Technical staff, is visually actually needed, the quantity of the elastic collecting lens selecting optical module 602.
In one or more embodiment, for convenience's sake, stereo display light source 30 also can be from three-dimensional aobvious Show that state switches to two dimension display state.Go back to Fig. 8.When the stereo display light source in present embodiment 30 switch to two dimension display state time, actuator 400 can make rotation wheel 302 the first echo area 310(such as Depicted in Figure 10) be fixed on the first light beam pass through on path, rotate the second penetrating region of wheel 302 simultaneously 340 are fixed on the passing through on path of the second light beam, and multiband filter plate 500 is removed.Therefore by The first light beam that one light source 100 sends, arrives along path 110 after rotating wheel 302, is rotated wheel 300 It is reflected back optical module 602.Then the first light beam is along path 120, through prism 630 and second The adjoiner (position before i.e. multiband filter plate 500 is removed) of prism 620, and arrive out Optical position 700.And the second light beam sent by secondary light source 150, along path 160 to rotating wheel 302 After, penetrate rotation wheel 302 and reflected by curved mirror 200.Then the second light beam is along path 170, warp Cross prism 630 and the adjoiner of the second prism 620, and arrive exit positions 700.Because of in two dimension Under display pattern, the first light beam and the second light beam, the most not through multiband filter plate 500, therefore own First light beam of wave band and the second light beam all can arrive exit positions 700.
But two dimensional mode is not limited with above-mentioned structure.Refer to Fig. 9, in other enforcement In mode, actuator 400 can make the first penetrating region 320(of rotation wheel 302 as depicted in Figure 10) solid Pass through on path due to the first light beam, rotate the second echo area 330(of wheel 302 as depicted in Figure 10) It is fixed on the passing through on path of the second light beam.Other second prism 620 and the adjoiner of prism 630 A reflecting mirror can be inserted towards the second prism 620, and this reflecting mirror can adjoin multiband filter plate 500 Either side is arranged.Therefore the first light beam sent by the first light source 100, arrives along path 110 and rotates After wheel 302, penetrate the first penetrating region 320 and arrive curved mirror 200, reflected by curved mirror 200 afterwards Return optical module 602.Then the first light beam is along path 130, the second prism 620 reflex to reflecting mirror, Therefore exit positions 700 it is reflected by a reflector.On the other hand, secondary light source 150 second sent Light beam, arrives along path 160 after rotating wheel 302, is rotated wheel 302 and reflex to along path 180 Reflecting mirror, is therefore reflected by a reflector to exit positions 700.In the present embodiment, because of the first light beam With the second light beam through the reflection of reflecting mirror, the first light beam and second light beam of the most all wave bands all can arrive Reach exit positions 700.
In one or more embodiment, stereo display light source 30 also can add the colour wheel 710 such as Fig. 6 With colour wheel actuator 720, further right and left eyes light beam is divided into right and left eyes primary colour beam.It addition, this The stereo display light source 30 of embodiment also can coordinate the optical modulator body 900 of Fig. 7 to form stereo display Device, its light splitting, the most also repeats no more also because of identical with Fig. 7 with the details of light modulation.
Although the present invention discloses as above with embodiment, so it is not limited to the present invention, Ren Heben Skilled person, without departing from the spirit and scope of the present invention, when being used for a variety of modifications and variations, Therefore protection scope of the present invention is when being as the criterion depending on as defined in claim.

Claims (23)

1. a stereo display light source, comprises:
One first light source, in order to provide one first light beam；
One curved mirror；
One rotates wheel, is placed between this first light source and this curved mirror, and this rotation wheel comprises one first and penetrates District and one first echo area；
One actuator, in order to rotate this rotation wheel so that this rotation wheel this first penetrating region with this first Echo area is positioned on the path of this first light beam according to sequential；
One multiband filter plate, this multiband filter plate can allow a part for this first light beam penetrate, should One another part reflection of the first light beam, and the wavelength of this two part is the most overlapping；And
One optical module, is placed between this first light source and this rotation wheel, in order to be guided by this first light beam Take turns to this rotation, and by from this first echo area this first light beam with from this curved mirror this first Light beam is directed to two that this multiband filter plate is relative respectively so that this part of this first light beam Light arrives an exit positions by this multiband filter plate, and the light of this another part of this first light beam This exit positions is arrived by the reflection of this multiband filter plate.
2. stereo display light source as claimed in claim 1, wherein this stereo display light source has a light Axle, this first light beam is beaten the position taken turns to this rotation and is deviateed this optical axis.
3. stereo display light source as claimed in claim 1, wherein this optical module comprises:
One first prism, has one first plane of incidence and an exiting surface, and this first light source adjoins this and first enters Face of penetrating is arranged, and this exit positions adjoins this exiting surface and arranges；
One first gap is defined between one second prism, and this first prism；
One prism, this multiband filter plate is placed between this second prism and this prism；And
At least one collecting lens, is placed between this second prism and this rotation wheel.
4. stereo display light source as claimed in claim 1, wherein this optical module comprises:
One first prism, has one first plane of incidence and an exiting surface, and this first light source adjoins this and first enters Face of penetrating is arranged, and this exit positions adjoins this exiting surface and arranges；
One first gap is defined between one second prism, and this first prism；
One reflecting mirror, this multiband filter plate is placed between this second prism and this reflecting mirror；And
At least one collecting lens, is placed between this second prism and this rotation wheel.
5. the stereo display light source as described in claim 3 or 4, wherein this first light beam and this first rib The normal of this first plane of incidence of mirror intersects an angle.
6. stereo display light source as claimed in claim 1, wherein this actuator makes in one first sequential This first echo area of this rotation wheel is positioned on the path of this first light beam, and makes this in one second sequential First penetrating region is positioned on the path of this first light beam according to sequential.
7. stereo display light source as claimed in claim 6, wherein when this first sequential, this first light Bundle this optical module incident, and be led to this first echo area of this rotation wheel, then first anti-by this Penetrate district and be reflected back this optical module, be directed to this multiband filter plate by this optical module afterwards so that should After this first light beam of part is by this multiband filter plate, this optical module it is directed to this and goes out light position Put.
8. stereo display light source as claimed in claim 6, wherein when this second sequential, this first light Bundle penetrates this first penetrating region of this rotation wheel and arrives this curved mirror.
9. stereo display light source as claimed in claim 6, wherein when this second sequential, this first light Bundle this optical module incident, and it is led to this first penetrating region of this rotation wheel, this first light beam penetrates This first penetrating region and arrive this curved mirror, then returned this optical module by this curved mirror reflection, and by this Optical module is directed to this multiband filter plate so that another part of this first light beam is filtered by this multiband Wave plate reflects, and is directed to this exit positions by this optical module once again.
10. stereo display light source as claimed in claim 1,
Also comprise a secondary light source, in order to provide one second light beam；
Wherein this rotation wheel also comprises one second penetrating region and one second echo area；
Wherein this actuator is also with so that this second penetrating region of this rotation wheel depends on this second echo area Sequential is positioned on the path of this second light beam；
Wherein this multiband filter plate can also allow a part for this second light beam penetrate, this second light beam One another part reflection, and the wavelength of this two part is the most overlapping；And
Wherein this optical module is also placed between this secondary light source and this rotation wheel, also in order to by this second light Bundle is directed to this rotation wheel, and by the light beam from this second echo area and the light from this second penetrating region Bundle is directed to these two that this multiband filter plate is relative respectively so that this part of this second light beam Light arrives this exit positions by this multiband filter plate, and the light of this another part of this second light beam This exit positions is arrived by the reflection of this multiband filter plate.
11. stereo display light sources as claimed in claim 10, wherein this stereo display light source has a light Axle, this first light beam is beaten to the position that this rotation is taken turns and is deviateed this optical axis to side, and this second light beam is beaten This optical axis is deviateed to the side of relatively this side to the position that this rotation is taken turns.
12. stereo display light sources as claimed in claim 10, wherein this optical module comprises:
One first prism, has one first plane of incidence and an exiting surface, and this first light source adjoins this and first enters Face of penetrating is arranged, and this exit positions adjoins this exiting surface and arranges；
One first gap is defined between one second prism, and this first prism；
One prism, this multiband filter plate is placed between this second prism and this prism；
One the 4th prism, and between this prism, define one second gap, the 4th prism has one the Two planes of incidence, this secondary light source adjoins this second plane of incidence and arranges；And
At least one collecting lens, is placed between this second prism and this rotation wheel.
13. stereo display light sources as claimed in claim 12, wherein this first light beam and this first incidence The normal in face intersects one first angle, and this second light beam intersects one second with the normal of this second plane of incidence Angle.
14. stereo display light sources as claimed in claim 10, wherein this first penetrating region is along this rotation The radial direction of wheel is disposed adjacent with this second echo area, and the radial direction taken turns along this rotation of this first echo area with This second penetrating region is disposed adjacent.
15. stereo display light sources as claimed in claim 10, wherein this stereo display light source has a light Axle, this first penetrating region of this rotation wheel is positioned on this optical axis according to sequential with this first echo area.
16. stereo display light sources as claimed in claim 10, wherein this actuator makes in one first sequential This first echo area obtaining this rotation wheel is positioned on the path of this first light beam, and this second penetrating region is positioned at On the path of this second light beam, and in one second sequential make this first penetrating region according to sequential be positioned at this first On the path of light beam, and this second echo area is positioned on the path of this second light beam according to sequential.
17. stereo display light sources as claimed in claim 16, wherein when this first sequential, this is second years old Light beam penetrates this second penetrating region of this rotation wheel and arrives this curved mirror, and when this second sequential, should First light beam penetrates this first penetrating region of this rotation wheel and arrives this curved mirror.
18. stereo display light sources as claimed in claim 16, wherein when this first sequential, this is first years old Light beam this optical module incident, and be led to this first echo area of this rotation wheel, then by this first Echo area is reflected back this optical module, is directed to this multiband filter plate by this optical module afterwards so that After the light of this part of this first light beam is by this multiband filter plate, this optical module it is directed to this Exit positions；And
Wherein when this first sequential, this second light beam this optical module incident, and it is led to this rotation Wheel this second penetrating region, this second light beam penetrates this second penetrating region and arrives this curved mirror, then by This curved mirror reflection returns this optical module, is therefore directed to this multiband filter plate by this optical module, makes Obtain the light of this part of this second light beam by this multiband filter plate after, this optical module be directed to This exit positions.
19. stereo display light sources as claimed in claim 16, wherein when this second sequential, this is first years old Light beam this optical module incident, and it is led to this first penetrating region of this rotation wheel, this first light beam is worn Thoroughly this first penetrating region and arrive this curved mirror, then returned this optical module by this curved mirror reflection, therefore It is directed to this multiband filter plate so that another part of this first light beam is by this multifrequency by this optical module Section filter plate reflection, and it is directed to this exit positions by this optical module once again；And
Wherein when this second sequential, this second light beam this optical module incident, and it is led to this rotation This second echo area of wheel, is then reflected back this optical module by this second echo area, afterwards by this optics Module is directed to this multiband filter plate so that another part of this second light beam is by this multiband filter plate Reflection, and it is directed to this exit positions by this optical module once again.
20. stereo display light sources as claimed in claim 1, also comprise a planoconvex lens, are placed in this rotation Between runner and this curved mirror.
21. stereo display light sources as claimed in claim 1, wherein this curved mirror is a coquille.
22. stereo display light sources as claimed in claim 1, also comprise color wheel, are placed in this and go out light position Put, in order to filter the light arriving at this exit positions of a part.
23. 1 kinds of 3 d display devices, comprise:
Stereo display light source as described in claim 1 to 21 is arbitrary；And
One optical modulator body, comprises:
At least one spectroscope, is placed in this exit positions, and this spectroscope is in order to by this of this first light beam This another part with this first light beam is divided to be divided into multiple primary colour beam；
Multiple liquid crystal panels, in order to form multiple image strip respectively by the plurality of primary colour beam；And
One light-combining prism, in order to collect the plurality of image strip and to be projected to a camera lens.
CN201310102264.3A 2013-03-27 2013-03-27 Stereo display light source and 3 d display device Expired - Fee Related CN104076516B (en)

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CN104363436A (en) * 2014-11-28 2015-02-18 杨兵 Method and system for achieving three-dimensional display based on spectrum color separation
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CN111722400B (en) * 2019-03-21 2022-08-16 信泰光学(深圳)有限公司 Optical device and lighting module thereof
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