CN100437200C - Optical device for head-wearing display device - Google Patents
Optical device for head-wearing display device Download PDFInfo
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- CN100437200C CN100437200C CNB200380110982XA CN200380110982A CN100437200C CN 100437200 C CN100437200 C CN 100437200C CN B200380110982X A CNB200380110982X A CN B200380110982XA CN 200380110982 A CN200380110982 A CN 200380110982A CN 100437200 C CN100437200 C CN 100437200C
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0172—Head mounted characterised by optical features
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B17/00—Systems with reflecting surfaces, with or without refracting elements
- G02B17/02—Catoptric systems, e.g. image erecting and reversing system
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/0132—Head-up displays characterised by optical features comprising binocular systems
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/0132—Head-up displays characterised by optical features comprising binocular systems
- G02B2027/0136—Head-up displays characterised by optical features comprising binocular systems with a single image source for both eyes
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0149—Head-up displays characterised by mechanical features
- G02B2027/0154—Head-up displays characterised by mechanical features with movable elements
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/12—Adjusting pupillary distance of binocular pairs
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Abstract
A head mounted display is disclosed that utilizes a single video display screen to transport images to both eyes. The image of this display screen is focused in order to reduce the splitting volume and then split by a plurality of reflective surfaces located near the focal point of the image.
Description
Technical field
[0002] the present invention relates generally to visual display unit, be specifically related to utilize the helmet system optical devices of individual monitor.
Background technology
[0003] head-mounted display (HMD) is a kind of image display device, and it can be used for showing TV, digital universal disc (DVD), computer utility, game console, or the image of other similar application.HMD can be monocular instrumnent (eyes is watched single image), binocular (two eyes are watched single image), or binoculars (each eye is watched different images).In addition, the image that projects on the eyes can be regarded as complete image by the user, or the visual image of the user that is added to.The HMD design must be considered some parameters like this, for example, image resolution ratio, the distance from eyes to the virtual image, the size of the virtual image (or visual angle of the virtual image), the distortion of the virtual image, the distance (interocular distance IPD) between user's left side pupil and the right pupil, diopter correction, because the optical loss that image segmentation and transmission cause, power consumption, weight, and price.It is desirable to, single HMD can consider these parameters of different user, and can display image, no matter it is three-dimensional binoculars image or simple monoscope image.
[0004] if the photo resolution of HMD internal display is 800 * 600 pixels, then the HMD optical element acceptable size that produces the virtual image is about the virtual image diameter of 1.5m (52 "-56 ") 2 meters distances, and it is roughly corresponding to 36 ° of visual angles.For head and the eyes that correctly adapt to the people, IPD should be variable between 45mm and 75mm.For compensate for myopia and long sight, need at least ± 3 diopters are strong.
[0005] in HMD, only use a micro-display (rather than each eye has a micro-display) can reduce the price of this device greatly.Usually, the device of this unit is to place micro-display between two eyes of user.Then, the image that produces is cut apart, amplified and be transferred to each eye respectively.In the prior art, people know that various design proposals utilize the center that display is installed and cut apart light beam among the individual monitor HMD, but they and do not know such solution, it is low that it has price, in light weight, size is little, and can show the device of all various images.
Summary of the invention
[0006] by focusing on the image that the individual monitor screen produces and being segmented near its focus that image, embodiments of the invention can reduce the segmentation volume of head-mounted display.Then, focus on subimage separately and propagation by many strips light path, thereby images is to position separately.
[0007] some embodiment utilize asymmetrical V-type catoptron beam splitter, and this beam splitter is to be made of the part reflecting face and the fully reflecting surface that are placed near the figure image focus.Then, a part of light that comprises image information is reflected by part reflecting face, and is transferred to eyes, and the light of remainder is reflected by full sub reflector face, and is transferred to another eyes.
[0008] some embodiment also can utilize diffusing globe, and the real image of display is formed on this diffusing globe.Real image is projected on the diffusing globe by the transfer optics of small value aperture, and is transferred to observer's eyes by means of the optical element of bigger numerical aperture.
[0009] some embodiment also can utilize rotoflector.By the image that reflection is cut apart from a plurality of reverberators, can change the light path of these images in such a manner, it allows these embodiment to regulate the interocular distance of different user.Other embodiment utilizes being synchronized with the movement to regulate the interocular distance of different user of a plurality of optical element pieces.
[0010] other embodiment also can utilize the light source irradiation display.A kind of possible device can comprise the light source of a plurality of narrow wavelength light, and these light sources are arranged in the single wideband light source of simulation.
[0011] Yi Shang content illustrates feature of the present invention and technological merit quite widely, in order to understand following the present invention who describes in detail better.Below also describe other features and advantages of the present invention, they constitute the theme of claims of the present invention.Should be appreciated that and can utilize notion disclosed herein and specific embodiment as the basis that changes or design other structures, these structures are used to realize identical purpose of the present invention.It is also understood that this suitable structure does not depart from the scope of the invention that appended claims limits.According to description below in conjunction with accompanying drawing, can understand novel feature of the present invention better, that is, and tissue of the present invention and method of operating, and other purpose and advantage.Yet, should be understood that each accompanying drawing that provides only be for convenience of explanation with the present invention is described, and should not regard limitation of the present invention as.
Description of drawings
[0012] in order more completely to understand content of the present invention, referring now to description, wherein below in conjunction with accompanying drawing:
[0013] Fig. 1 represents the top view according to embodiment of the invention head-mounted display;
[0014] Fig. 2 represents the skeleton view according to embodiment of the invention head-mounted display;
[0015] Fig. 3 represents the skeleton view according to embodiment of the invention head-mounted display;
[0016] Fig. 4 A and 4B represent the skeleton view according to embodiment of the invention head-mounted display;
[0017] Fig. 5 A and 5B represent the skeleton view according to embodiment of the invention head-mounted display;
[0018] Fig. 6 represents the part top view according to embodiment of the invention head-mounted display;
[0019] Fig. 7 represents the part top view according to embodiment of the invention head-mounted display;
[0020] Fig. 8 represents the part top view according to embodiment of the invention head-mounted display; With
[0021] Fig. 9 represents the part top view according to embodiment of the invention head-mounted display.
Embodiment
[0022] Fig. 1 represents the top view according to embodiment of the invention head-wearing device 100.Setting up part 101 at the subimage of device in 100 sets up a plurality of subimages from the single image source and enters many strips light path.Display 110 can be any suitable device or screen, is used for the visual image of video data, for example, and LCD (LCD) screen.Display 110 is positioned on the display axis 111, in an illustrated embodiment, and display axis 111 and display 110 screen quadratures and perpendicular to user's face plane 170.Display 110 is designed to along light path 112 projection display images.Set up in the device of part 101 at subimage, light path 112 is on display axis 111.Display lens 115 are on light path 112 and vertical with it, and display lens 115 have display lens focus 124.Display lens focus 124 is on light path 112, and subimage to set up part 101 be to arrange like this, it makes display lens focus 124 is in beam splitter 120.Before cutting apart display image,, can reduce subimage greatly and set up the volume of part 101 and cut apart by focusing on display image.Little segmentation volume allows this embodiment to use the little and lightweight cutting element of volume, and comprises favourable device and additional optical element in the design of permission HMD, can improve the quality of image and increase the picture size that the user watches.The embodiment of Fig. 1 arranges like this, produces image by the approximate construction direct light from display 110 emissions (or reflection), and therefore, beam splitter 120 is placed to display lens focus 124 and leads mutually.Yet the embodiment of the invention is not limited to this arrangement, because beam splitter 120 should be arranged in the position that is suitable for focusedimage most.For example, if display 110 emissions, transmission, or reflect uncollimated light, and then display image is focused such one " point ", and this point is not a display lens focus 124, therefore, the embodiment of the invention arrange beam splitter 120 with this focal region position adjacent.
[0023] utilizing subimage to set up among the embodiment of part 101 devices, beam splitter 120 is asymmetric V-type catoptrons, and it is to be made of part reflecting face 121 and fully reflecting surface 122.The adjacent degree of reflecting surface 121 and reflecting surface 122 depends on that the size of beam splitter 120 and subimage set up the beam splitter volume decrease that part 101 produces.Subimage is set up part 101 and can also be arranged like this, and reflecting surface 121 is shared common edge with reflecting surface 122, and presents asymmetric distribution around display axis 111.Therefore, subimage is set up part 101 and can be divided into two display subimages that separate to the display image of display 110.Term " subimage " is used to describe a plurality of display images that each embodiment of the present invention sets up.Subimage among Fig. 1 comprises all information of display, but different embodiment can utilize the subimage that only comprises parts of images.
[0024] after on inciding part reflecting face 121, the display image of part is along sub-light path 140 reflections of left eye, and becomes the left eye subimage.The part display image transmission of not reflected by part reflecting face 121 by and incide on the fully reflecting surface 122, it becomes the right eye subimage, the right eye subimage reflects on the sub-light path 130 of right eye.Consequently propagate in opposite direction and comprise identical image information be equal to left eye subimage and right eye subimage.
[0025] the left eye subimage advances and is transferred to user's left eye 146 along sub-light path 140.Place left eye reverberator 142 on sub-light path 140, this reverberator has fully reflecting surface, and it can change 90 ° in sub-light path 140 directions of left eye, and enters left eyepiece optics element 145.The right eye subimage advances and is transferred to user's right eye 136 along sub-light path 130.Place right eye reverberator 132 on sub-light path 130, this reverberator has fully reflecting surface, and it can change 90 ° in sub-light path 130 directions of right eye, and enters right eyepiece optics element 135.Right eyepiece optics element 135 and left eyepiece optics element 145 can be single lens, or the combination of several lens, and they are designed to correct the amplification and are suitable for the right eye subimage that user's right eye 136 watches and are suitable for the left eye subimage that user's left eye 146 is watched.
[0026] eyepiece optics element 135 and 145 is adjustable simple lenses, but other embodiment can utilize a plurality of lens or any other arrangement, and they are suitable for focusing on right eye subimage and the left eye subimage that right eye 136 and left eye 146 are watched respectively.In addition, be described as catoptron though install 100 reverberator 142,132, the embodiment of the invention is not limited to the direction of utilizing catoptron to change sub-light path.On the contrary, prism, part reflecting face, polarising beam splitter, or any other can be used for changing the appropriate device of sub-light path direction.
[0027] by being synchronized with the movement of each optical element, device 100 also can be regulated the variation IPD of different user.When subimage is set up part 101 by moving 155 when being subjected to displacement, right eyepiece optics element 135 and left eyepiece optics element 145 can 152 and 151 be set up IPD 150a and IPD 150b respectively by moving.When IPD changed over IPD 150b apart from 150a, subimage was set up part 101 and be subjected to displacement (being to move downward) to face plane 170 in Fig. 1 simultaneously in motion 155.When IPD 150b changed over IPD 150a, subimage was set up part 101 and leave the displacement on plane 170 (being to move upward) simultaneously in Fig. 1.These are synchronized with the movement device 100 is adjusted to adapt to the gamut between IPD 150a and the IPD 150b, meanwhile, are keeping constant distance between reflecting surface 122,121 and the eyepiece optics element 135,145 on sub-light path 130 and 140 respectively.By the motion 153 of the left eyepiece optics element 145 of additional adjustment and the motion 154 of right mirror optical element 135, device 100 also can carry out diopter correction.
[0028] Fig. 2 represents the skeleton view according to embodiment of the invention head-wearing device 200.Head-wearing device 200 comprises: the subimage of describing among Fig. 1 is set up part 101, and its effect is that the display image of display 110 is divided into along the left eye subimage of sub-light path 140 transmission of left eye and the left eye subimage that transmits along the sub-light path 130 of right eye.In device 200, left eye transfer optics 243 is on the sub-light path 140 of left eye, is used to adjust left eye reverberator 142 and reflexes to left eye subimage on the left eye diffusing globe 244.The left eye subimage incides left eye diffusing globe 244 and produce the real image of display on the diffusing globe surface.Then, left eyepiece composite optic element 245 correctly amplifies this real image that offers left eye 146.
[0029] we utilize diffusing globe to describe embodiment shown in Figure 2, and wherein real image projects on this diffusing globe to form image.There is the transfer optics of small value aperture to throw real image, and the eyes of this image of eyepiece optics element transmission of large-numerical aperture to the user are arranged to the diffusing globe surface.Perhaps, can utilize any suitable device, comprising microlens array, diffraction grating, or other Difraction surface.In the present invention, should be understood that " diffusing globe " that be used to describe the embodiment of the invention is meant the device that all are such, it is used for the incident angle power density is converted to suitable emergence angle power density.
[0030] in Fig. 2, the right eye subimage is transferred to right eye transfer optics 233 along the sub-light path 130 of right eye.Right eye transfer optics 233 is correctly adjusted right eye reverberator 132 and is reflexed to right eye display subimage on the right eye diffusing globe 234.The right eye subimage incides right eye diffusing globe 234 and produces a real image.Utilization is suitable for the right eyepiece composite optic element 235 of right eye 136 and adjusts this real image.By the motion 253 of left eye composite optic element 245 and the motion 254 of right eye composite optic element 235, device 200 can carry out diopter correction.
[0031] be synchronized with the movement by a plurality of, device 200 also can carry out IPD to be regulated.Make left eye composite optic element 234 displacement to the right and motion 252 make right eye composite optic element 235 by means of motion 251, can shorten IPD 150 to left dislocation.In the embodiment of Fig. 2, the cross-talk light path 240 in the sub-light path 140 is between transfer optics 243 and diffusing globe 244, and the cross-talk light path 230 in the sub-light path 130 is between transfer optics 233 and diffusing globe 234.Therefore, when composite optic element 235 and 245 along 252 and 251 the direction displacement of moving to reduce the distance 150 the time, core 201 should be the displacement of leaving face plane 170.The embodiment of Fig. 2 describes a combination that is synchronized with the movement that causes IPD to regulate, but embodiments of the invention are not limited to shown in Figure 2 being synchronized with the movement.
[0032] Fig. 3 represents the skeleton view according to embodiment of the invention head-wearing device 300.Head-wearing device 300 comprises: the subimage of describing among Fig. 1 is set up part 101, and its effect is that the display image of display 110 is divided into along the left eye subimage of sub-light path 140 transmission of left eye and the right eye subimage that transmits along the sub-light path 130 of right eye.In the embodiment shown in fig. 3, left eye display subimage advances and transmits by left eye real image reverberator 342 along the sub-light path 140 of left eye and incides the reflective diffusing globe 343 of left eye, thereby produces a real image.Then, this real image is reflexed to left eyepiece optics element 145 by left eye real image reverberator 342.Left side eyepiece optics element 145 correctly is provided by the reflection real image of providing for left eye 146.Right eye display subimage advances and transmits by right eye real image reverberator 332 along the sub-light path 130 of right eye and incides the reflective diffusing globe 333 of right eye, thereby produces a real image.Then, this real image is reflexed to right eyepiece optics element 135 by right eye real image reverberator 332, and right eyepiece optics element 135 correctly is provided by the reflection real image of providing for right eye 136.
[0033] embodiment shown in Fig. 3 is described as and utilizes reflective diffusing globe, and real image is formed on this diffusing globe.The present invention is not limited to the diffusing globe that uses any type.On the contrary, embodiments of the invention can utilize any suitable diffusing globe, as described above, and can have any suitable shape, for example, and sphere, plane, or aspheric surface.
[0034] embodiment among Fig. 3 also can carry out diopter correction by the motion 153 of left eyepiece optics element 145 and the motion 154 of right eyepiece optics element 135.Left eye real image reverberator 342 constitutes left eyepiece 360 with left eyepiece optics element 145.Right eye real image reverberator 332 constitutes right eyepiece 361 with right eyepiece optics element 135.
[0035] device 300 can carry out the IPD adjusting by a plurality of motions simultaneously.Embodiment shown in Fig. 3 351 and 352 moves left eyepieces 360 and right eyepiece 361 respectively to set correct IPD simultaneously by moving.Meanwhile, the motion 154 maintenance eyepiece optics elements 145,135 of the motion 153 of left eyepiece optics element 145 and right eyepiece optics element 135 and the optical length between the reflective diffusing globe 343,333.
[0036] in device 300, left eye real image reverberator 342 and right eye real image reverberator 332 have part reflecting face, but embodiments of the invention are not limited to arrangement described herein.On the contrary, embodiments of the invention can easily be suitable for any arrangement, for example, utilize prism, or polarising beam splitter, they respectively correctly reflected light enter eyepiece optics element 135 and 145, and the light that transmits from light path 130,140 arrives reflective diffusing globe 333,343.
[0037] Fig. 4 A and 4B represent the skeleton view according to embodiment of the invention head-wearing device 400.Head-wearing device 400 utilizes the right corner subimage to set up part 401 and sets up a plurality of display subimages from the single image source.Be similar to the subimage of describing among Fig. 1-3 and set up part 101, subimage is set up part 401 display image of display 110 is divided into along the left eye subimage of sub-light path 140 propagation of left eye and the right eye subimage of propagating along the sub-light path 130 of right eye.Set up in the part 401 at subimage, display 110 and display optics 115 are set up part 401 half-twists from the subimage shown in Fig. 1-3.Light path 112 projection display images that display 110 focuses on along display optics 115.Then, display image incides and shows reverberator 416,90 ° in the direction of this reverberator change light path 112.Reverberator 416 makes the display image of focusing change direction and enters beam splitter 120.Utilize reverberator 416 to change the direction of light path, can reduce the cumulative volume that subimage is set up part 401.By adding other similar reverberators, can further reduce this volume.Set up in the part 401 at subimage, beam splitter 120 is to arrange like this, and part reflecting face 121 and fully reflecting surface 122 are parallel to display axis 111, and the reflector focus 424 of display optics 115 is in beam splitter 120.The left eye display subimage that the display image conduct of part reflecting face 121 reflecting parts is advanced along the sub-light path 140 of left eye, and make it incide left eye reverberator 142.The part display image that is reflected by part reflecting face 121 is not reflected as the right eye subimage along the sub-light path 130 of right eye by fully reflecting surface 122, and makes the right eye subimage incide right eye reverberator 132.
[0038] device 400 according to the mode that is similar to device 200 shown in Figure 2 utilize " reality " as.In device 400, left eye display subimage is reflected to the left eye diffusing globe 243 that produces real image.Then, this real image is transferred to left eye 146 by left eyepiece optics element 145, and optical element 145 is designed to the correct left eye subimage of watching for left eye 146 that focuses on.Right eye display subimage is reflected to the right eye diffusing globe 234 that produces real image.This real image is transferred to right eye 136 by right eyepiece optics element 135, and optical element 135 is designed to the correct right eye subimage of watching for right eye 136 that focuses on.By the motion 153 of left eyepiece optics element 145 and the motion 154 of right eyepiece optics element 135, device 400 can carry out diopter correction.
[0039] IPD of Fig. 4 B explanation device 400 corrects ability.In this embodiment, fully reflecting surface 122 and part reflecting face 121 are around beam splitter axle 423 and rotatable each other.When fully reflecting surface 122 rotated by counter clockwise direction with part reflecting face 121 in the direction of the clock around axle 423, sub-light path 130 of right eye and the sub-light path 140 of left eye just departed from open plane, no longer intersect 180 ° between them.When the sub-light path 140 of the sub-light path 130 of right eye and left eye respectively during certain angle of deflection (θ) and (θ '), consequently, install 400 IPD 450 that adjusting arranged.When reflecting surface 121,122 rotations, eyepiece 460 and 461 is inwardly rotation simultaneously just.Following deflecting down of sub-light path 140, and eyepiece 461 rotates to follow deflecting down of sub-light path 130 eyepiece 460 in the direction of the clock by rotation counterclockwise.These rotations simultaneously cause the IPD 450 that regulates.
[0040] Fig. 5 A and 5B represent the skeleton view according to embodiment of the invention head-mounted display 500.In head-mounted display 500, subimage is set up part 101 and is used for once more the display image of display 110 is divided into along the left eye subimage of sub-light path 140 transmission of left eye and the right eye subimage that transmits along the sub-light path 130 of right eye.In display 500, left eye display subimage incides left eye reverberator 142, thereby makes the sub-light path 140 of left eye change 90 ° in direction.Then, left eye display subimage incides the second left eye reverberator 543, and it also makes the sub-light path 140 of left eye change 90 ° in direction.The left eye reverberator 142 and the second left eye reverberator 543 are arranged to along common left eye reflector axis 541.In case left eye display subimage is by 543 reflections of the second left eye reverberator, then it is reflected by the 3rd left eye reverberator 544, and changes direction to left eye diffusing globe 243.
[0041] similarly, right eye display subimage incides right eye reverberator 132, thereby makes the sub-light path 130 of right eye change 90 ° in direction.Then, right eye display subimage incides the second right eye reverberator 533, and this reverberator also makes the sub-light path 130 of right eye change 90 ° in direction.The right eye reverberator 132 and the second right eye reverberator 533 are arranged to along common right eye reflector axis 531.In case right eye display subimage is by 533 reflections of the second right eye reverberator, it is just by 534 reflections of the 3rd right eye reverberator, and the change direction is to right eye diffusing globe 233.
[0042] real image of setting up on left eye diffusing globe 243 is transferred to left eye 146 by left eyepiece optics element 145.Left side eyepiece 560 is by the second left eye reverberator, 543, the three left eye reverberators 544, the constituting of left eye diffusing globe 243 and left eyepiece optics element 145.The real image of setting up on right eye diffusing globe 233 is by right eyepiece optics element 135 transmission right eyes 136.Right eyepiece 561 is by the second right eye reverberator, 533, the three right eye reverberators 534, the constituting of right eye diffusing globe 233 and right eyepiece optics element 135.By the motion 153 of left eyepiece optics element 145 and the motion 154 of right eyepiece optics element 135, device 500 can carry out diopter correction.
[0043] device 500 can be regulated IPD 150, shown in Fig. 5 B.In device 500, left eyepiece 560 can be with respect to left eye reverberator 142 around axle 541 rotations.When left eyepiece 560 rotated by counter clockwise direction around left eye reflector axis 541, sub-light path 140 departed from certain angle of light path before its
Similarly, right eyepiece 561 can be with respect to right eye reverberator 132 around axle 531 rotations.When right eyepiece 561 rotated in the direction of the clock around right eye reflector axis 531, sub-light path 130 departed from certain angle of light path before it
These deflections cause left eyepiece 560 and right eyepiece 561 to rotate to the IPD550 of adjusting in user face plane.
[0044] Fig. 6 represents the part top view according to embodiment of the invention head-wearing device.Fig. 1-5 has described the embodiment that utilizes subimage to set up part 101 and 401.Yet embodiments of the invention are not limited to this arrangement.In Fig. 6, subimage is set up part 600 and is comprised: the display 110 vertical with display axis.Display 110 is along light path 112 projection display images.Then, display image is had the display lens 115 of lens focus 124 to focus on.Beam splitter 620 is V-type catoptron beam splitters of symmetry, and it is to be made of right fully reflecting surface 622 and left fully reflecting surface 621, and these two reflectings surface are shared common edge and arranged symmetrically around display axis 111.The explanation of Fig. 6 and description are to utilize fully reflecting surface, but this arrangement can easily be adapted to utilize polarising beam splitter or part reflecting face.The arrangement that subimage is set up part 601 causes the display image of display 110 projections, this image is shown 115 focusing of device lens and is divided into two display subimages, the subimage of one of them reflection is along sub-light path 130 transmission of right eye, and another subimage is along sub-light path 140 transmission of left eye.
[0045] utilize collimated light (or approximate construction direct light) can further optimize each embodiment of the present invention.Produce, reflection, or collimated light-struck display can improve the quality of image and the arrangement of simplification device.Produce and provide collimated light the whole bag of tricks can be arranged, but embodiments of the invention are not limited to any method to the HMD of different characteristic.
[0046] Fig. 7 represents the part top view according to embodiment of the invention head-wearing device.Set up in the part 700 at subimage, display 110 is arranged to vertical with display axis 111.Display lens 115 are inserted between display 110 and the beam splitter 620.Beam splitter 620 is V-type catoptron beam splitters of symmetry, and this beam splitter has fully reflecting surface 621 and fully reflecting surface 722.The focus 124 of lens 115 is adjacent with beam splitter 620.Display 110 is by light source 708 and 709 irradiations, and these two light sources are by 707 reflections of source reverberator, and source reverberator 707 can be a polarization beam apparatus, or partial reflection formula catoptron, or other suitable reverberators.It is adjacent with display axis 111 that light source 708 and 709 is arranged to, and with the reflection the same plane of focus 124R in.The subimage that light source 708 and display 110 produce is focused on by lens 115, and incides on the reflecting surface 722 of beam splitter 620.When display 110 during, produce display subimage separately and focused on by lens 115 by light source 709 irradiation.Because light source 709 is placed on below the focus 124R of reflection, the subimage that light source 709 and display 110 produce is focused on by lens 115, and incides on the reflecting surface 621 of beam splitter 620.
[0047] in the embodiment of Fig. 7, produce independently display 110 images (being referred to as subimage once more) of two complete sums, each subimage is the full images of display 110.In the embodiment of Fig. 7, beam splitter 620 not split image but is cut apart the space, angle of display reflects producing subimage, thereby allows to produce independently image and along the light path transmission that separates.
[0048] Fig. 8 represents to utilize subimage to set up the head-wearing device 800 part top views of part 101 according to the embodiment of the invention.Blue-light source 801 is to arrange along light source light path 806, preferably on the reflector focus 124R of display optics 115 or near it.Blue-light source 801 can be any light source that can produce blue light, for example, and Nichia NSCx100 series light emitting diode (LED).First chromatic filter 804 of the light transmission of blue-light source 801 by arranging with proper angle on the light path is in order that transmit blue and reflect green light.It is adjacent with light source light path 806 that green light source 802 is placed to, and be arranged to reflection from first chromatic filter, 804 light, and its simulation is placed green light source 802 in the position identical with blue-light source 801.The green glow of blue light and reflection advances and transmits by second chromatic filter 804 along the direction of light source light path 806, this wave filter with suitable angular arrangement on light source light path 806.
[0049] second chromatic filter, 805 transmit blue and the green glow chosen, but reflect red.It is adjacent with light source light path 806 that red light source 803 is placed to, and be arranged to the light of reflection second chromatic filter 805, and its simulation is placed red light source 803 in the position identical with blue-light source 801.Then, blue light, the ruddiness of the green glow of reflection and reflection advances along light source light path 806, and is reflected by light source reflector 807.In the embodiment that describes, light source reflector 807 can be display axis 111 near and along the polarization reflector of light path 112 arrangements.The blue light of combination, green glow and ruddiness are polarized lights, and pass through display optics 115 from light source reflector 807 reflections.In the embodiment that describes, display optics 115 is that focus 124 lens of (with reflector focus 124R) are arranged.After display optics 115 is passed through in transmission, the blue light of combination, green glow and ruddiness are collimated, and irradiation display 110.The irradiation that Fig. 8 describes display 110 is from single direction, but embodiments of the invention are not limited to single direction.On the contrary, the irradiation system of Fig. 8 can easily be adapted to multi-direction irradiation, as shown in Figure 7.
[0050] embodiments of the invention are not limited to such arrangement, and wherein image segmentating device is near the focus of focusing optical element.On the contrary, place image segmentating device and be suitable for being segmented in the display image that the zonule focuses on, embodiments of the invention can reduce segmentation volume in the various application.
[0051] Fig. 9 represents the segmentation volume that reduces of embodiment of the invention generation.In Fig. 9, display 110 is illuminated and produce display image.This display image is propagated along the light path 112 of display axis 111.There are the display lens 115 of display lens focus 124a to focus on display image, in order that form the segmentation volume that reduces.Segmentation volume is that the point of minimum is relevant with the light of irradiation display.
[0052] when utilization was placed on the light source 908a irradiation display 110 of reflected displaying device lens focus 924a, display lens 115 can collimate from the light of light source reflector 707 reflections.This display image that causes display lens 115 to focus on roughly is on display lens focus 124a.When display 110 is to be placed on when going up light source 908b irradiation with the approaching some 924b of display axis 111, be diverging light when the light of light source reflector 707 reflections is on inciding display 110.Therefore, display image focus on a 124c near.When display 110 be placed on display axis 111 away from some 924c when going up light source 908c irradiation, be converging light when the light of light source reflector 707 reflections is on inciding display 110.Therefore, display image focus on a 124b near.Therefore, embodiments of the invention can be arranged in only point and cut apart display image.
[0053] though we have described the present invention and advantage thereof in detail, should be understood that in the scope of the invention that does not depart from the appended claims qualification various variations can be arranged, replace and change.In addition, scope of the present invention is not limited to the specific embodiment process of describing in instructions, and machine is made, material composition, device, method or step.Can understand in the disclosed from here content, can utilize existing or the process of development later on, machine is made, material composition, device, method or step, they finish basically with corresponding embodiment in the identical function described or realize basic identical result.Therefore, appending claims should comprise these processes in its scope, and machine is made, material composition, device, method or step.
Claims (61)
1. method that is used for from single video display images to user's eyes, described method comprises:
At focus place, focus on the image of described display, to reduce adjacent to splitting equipment
Be used to cut apart the required spatial volume of described image; With
In the described volume that reduces, cut apart described image.
2. according to the process of claim 1 wherein the described image of the described display of lens focus.
3. according to the method for claim 2, wherein said lens are to be made by glass.
4. according to the method for claim 2, wherein said lens are adjacent with described display.
5. a head-wearing device is used to transmit the eyes of the image of single video display to the user, and described device comprises:
Optical element is used to assemble the image of described display, and is described to reduce to be used to cut apart
The spatial volume that image is required; With
Segmenting device is used to cut apart described focusedimage, and wherein said segmenting device is placed to
Adjacent to the focus in the described volume that reduces.
6. according to the device of claim 5, wherein said optical element is lens.
7. according to the device of claim 5, wherein said segmenting device comprises: part reflecting face and fully reflecting surface.
8. according to the device of claim 5, wherein said segmenting device comprises:
First fully reflecting surface and second fully reflecting surface, they are arranged to the V-type catoptron of symmetry.
9. according to the device of claim 5, wherein said optical element is and described display adjacent lenses.
10. according to the device of claim 9, wherein said lens are arranged for the light of the described display of collimated illumination.
11. the method for the image of a transmitting and displaying, described method comprises:
Image along the described demonstration of light path projection;
Place image that lens are used to focus on demonstration and become a point on the light path; With
Cut apart the display image adjacent with described point and become a plurality of subimages, each subimage is that the strip light path on many strips light path advances.
12. according to the method for claim 11, wherein said point is the focus of described lens.
13. the method according to claim 11 also comprises:
At least place a reverberator along light path, can reduce the distance between described display lens and the described point.
14. the method according to claim 11 also comprises:
Utilize around a plurality of reflectings surface of display axis arrangement and cut apart display image.
15., wherein rotate described reflecting surface and can be used for regulating interocular distance according to the method for claim 14.
16. the method according to claim 11 also comprises:
Form real image to diffusing globe along at least one strip light path on many strips light path.
17. according to the method for claim 16, the motion of wherein said diffusing globe can be used for regulating interocular distance.
18. the method according to claim 11 also comprises:
Utilization changes the direction of this sub-light path along first reverberator of at least one strip light path on many strips light path.
19. according to the method for claim 18, the motion of wherein said first reverberator can be used for regulating interocular distance.
20. according to the method for claim 18, wherein utilize second reverberator to change the direction of described sub-light path, wherein said second reverberator is rotatable, and wherein said rotation can be used for regulating interocular distance.
21. the method according to claim 11 also comprises:
Utilize broadband radiation source irradiation display.
22. according to the method for claim 21, wherein broadband radiation source is to be made of a plurality of narrow-band radiateds source, these narrow-band radiated sources are along common radiation source path projection radiation.
23. the method according to claim 22 also comprises:
Utilize the position of chromatic filter dummy source.
24. according to the method for claim 21, the described irradiation of wherein said collimated.
25. a device that is used for the image of transmitting and displaying, described device comprises:
Be used for along the device of light path projected image;
Be used to focus on the device of described image;
The device that be used for described image segmentation become a plurality of display subimages adjacent with the focus of described image, each described subimage advances along the strip light path on many strips light path; With
Wherein said focalizer is inserted between described projection arrangement and the described segmenting device.
26. according to the device of claim 25, wherein said segmenting device comprises: the multiple arrangement that is used for reflected image.
27. according to the device of claim 25, wherein segmenting device comprises:
The device that is used for the partial reflection image;
With the device that is used for the total reflection image.
28. according to the device of claim 26, the device that wherein is used for the device of partial reflection image and is used for the total reflection image is mutually perpendicular.
29. according to the device of claim 27, the device that wherein is used for the device of partial reflection image and is used for the total reflection image is asymmetric geometry around display axis.
30. according to the device of claim 26, the device that wherein is used for the device of partial reflection image and is used for the total reflection image is rotatable, and wherein said rotation can be used for regulating interocular distance.
31. a method that is used for the image of transmitting and displaying, described method comprises:
Image along the light path projection display;
Described image segmentation is become a plurality of display subimages, and each subimage is that the strip light path on many strips light path advances; With
Utilize concentrating element to focus on described image, the image of wherein said projection is focused and the some place position adjacent of cutting apart described image.
32. according to the method for claim 31, wherein mainly by means of the described image of collimated light projection, and described position roughly is the focus of described concentrating element.
33. according to the method for claim 31, wherein mainly by means of the described image of converging light projection, and described position is between the focus of described display and described concentrating element.
34. according to the method for claim 31, wherein mainly by means of the described image of diverging light projection, and the focus of described concentrating element is between described display and described position.
35. according to the method for claim 31, wherein when utilizing the described display of rayed of described collimated, described projected image is the reflected image of described display.
36. a system that is used for the image of transmitting and displaying, described system comprises:
Display is along the light path projected image;
Focus on the lens of this image;
Produce the beam splitter of a plurality of display subimages with adjacent being used to of described figure image focus, each described subimage advances along the strip light path on many strips light path; With
Form the device of real image along at least one strip light path on many described sub-light paths.
37. according to the system of claim 36, the motion of wherein said formation device can be used for regulating interocular distance.
38. according to the system of claim 36, wherein said formation device is the sphere diffusing globe.
39. according to the system of claim 36, wherein said formation device is a diffraction grating.
40. according to the system of claim 36, wherein said formation device is a microlens array.
41. a system that is used for the image of transmitting and displaying, described system comprises:
Display is along the light path projected image;
Focus on the lens of this image;
Produce the beam splitter of a plurality of display subimages with adjacent being used to of described figure image focus, each described subimage advances along the strip light path on many strips light path; With
Be used to change the device of at least one strip light path direction on described many strips light path.
42. according to the system of claim 41, the device of wherein said change direction is a catoptron.
43. according to the system of claim 41, wherein said first motion that changes direction device can be used for regulating interocular distance.
44. according to the system of claim 43, wherein the second change direction device is rotatable around the common axle of the first and second change direction devices, and wherein said rotation can be used for regulating interocular distance.
45. a head-mounted display, described head-mounted display comprises:
Indicator screen can be operated to produce the display image along light path;
The display optics adjacent with described indicator screen, wherein said optical element focus on described image and become a point; With
Cut apart the beam splitter that display image becomes a plurality of display subimages with adjacent being used to of described point, each subimage is to transmit along the strip light path on many strips light path.
46. according to the head-mounted display of claim 45, wherein part reflecting face and fully reflecting surface are aligned to asymmetrical V-type catoptron beam splitter.
47. the head-mounted display according to claim 45 also comprises:
Diffusing globe is used for forming real image along at least one strip light path on many strips light path.
48. according to the head-mounted display of claim 47, wherein said diffusing globe is a sphere.
49. according to the head-mounted display of claim 45, wherein said indicator screen, described optical element and described beam splitter are arranged to a fixed part, and it and being synchronized with the movement of at least one eyepiece can be regulated user's interocular distance.
50. a head-mounted display, described head-mounted display comprises:
Indicator screen can be operated to produce the display image along light path;
The display optics adjacent with described indicator screen, wherein said optical element focus on described image and become a point;
Cut apart the beam splitter that display image becomes a plurality of display subimages with adjacent being used to of described point, each subimage is to transmit along the strip light path on many strips light path; With
Reverberator along at least one strip light path arrangement on many strips light path.
51. the head-mounted display according to claim 50 also comprises:
Be inserted in the diffusing globe between reverberator and the eyepiece optics element.
52. according to the head-mounted display of claim 50, wherein said diffusing globe is movably.
53. the head-mounted display according to claim 50 also comprises:
Along second reverberator that the above at least one strip light path of many strips light path is arranged, be used to change the direction of this at least one strip light path on many strips light path.
54. according to the head-mounted display of claim 53, wherein second reverberator is rotatable around the common axle of first and second reverberators, and wherein said rotation can be regulated user's interocular distance.
55. a system that is used for the image of transmitting and displaying, described system comprises:
Display can be operated to produce display image along light path;
The display optics adjacent with described display, described display optics has focus;
The broad band source of projection radiation to the described display; With
The beam splitter adjacent with focus, described beam splitter can be operated and be used for display image is divided into a plurality of display subimages, and each subimage is to transmit along the strip light path on many strips light path.
56. according to the system of claim 55, wherein the broadband projector is to be made of a plurality of narrow-band source, they are aligned to the single broadband of simulation projector.
57. according to the system of claim 55, wherein said broad band source comprises:
First wave filter and second wave filter;
The the first, the second and the 3rd arrowband projector;
The wherein said first arrowband projector is placed to by described first filter and along common radiation source path projection radiation;
The wherein said second arrowband projector is placed to projection radiation to described first wave filter, and wherein said first wave filter is placed to from the described second arrowband projector and reflects described radiation by described second filter and arrive described common radiation source path; With
Wherein said the 3rd arrowband projector is placed to projection radiation to described second filter, and described second wave filter is placed to from described the 3rd projector reflected radiation to described common radiation source path.
58. according to the system of claim 57, the wherein said the first, the second and the 3rd arrowband projector projection projection is corresponding to ruddiness, the visible wavelength of green glow or blue light.
59. a system that is used for the image of transmitting and displaying, described system comprises:
Subimage is set up part, and wherein the image of display is focused and is used for producing at least two number of sub images, and each subimage is along the strip light path orientation on the two strip light paths;
Be inserted at least one the eyepiece part on every described sub-light path; With
Wherein said subimage sets up part and described eyepiece part can be regulated interocular distance by being synchronized with the movement.
60. according to the system of claim 59, wherein said being synchronized with the movement keeps every strip light path that constant length is arranged.
61. according to the system of claim 59, the motion of wherein said eyepiece part is to set up on the direction of componental movement perpendicular to described subimage.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US2003/039768 WO2005062105A1 (en) | 2003-12-12 | 2003-12-12 | Optical arrangements for head mounted displays |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CNA200810128994XA Division CN101556376A (en) | 2003-12-12 | 2003-12-12 | Optical device for head-mounted display |
Publications (2)
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| CN1894617A CN1894617A (en) | 2007-01-10 |
| CN100437200C true CN100437200C (en) | 2008-11-26 |
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| CNB200380110982XA Expired - Fee Related CN100437200C (en) | 2003-12-12 | 2003-12-12 | Optical device for head-wearing display device |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP1692559A1 (en) |
| JP (1) | JP2007524856A (en) |
| CN (1) | CN100437200C (en) |
| AU (1) | AU2003297061A1 (en) |
| BR (1) | BR0318647A (en) |
| CA (2) | CA2548398C (en) |
| RU (1) | RU2008130354A (en) |
| WO (1) | WO2005062105A1 (en) |
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| EP4249990A4 (en) * | 2020-11-19 | 2024-05-15 | Sony Semiconductor Solutions Corporation | Video display device, video display system, and video display method |
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| JP5169253B2 (en) * | 2008-01-29 | 2013-03-27 | ブラザー工業株式会社 | Image display device |
| US7791809B2 (en) * | 2008-03-13 | 2010-09-07 | Day And Night Display Systems, Inc. | Visor heads-up display |
| US10488660B2 (en) | 2008-03-13 | 2019-11-26 | Everysight Ltd. | Wearable optical display system for unobstructed viewing |
| US11256094B2 (en) | 2008-03-13 | 2022-02-22 | Everysight Ltd. | Wearable optical display system for unobstructed viewing |
| US11513349B2 (en) | 2008-03-13 | 2022-11-29 | Everysight Ltd. | Optical see-through (OST) near-eye display (NED) system integrating ophthalmic correction |
| JP5083052B2 (en) * | 2008-06-06 | 2012-11-28 | ソニー株式会社 | Stereoscopic image generation apparatus, stereoscopic image generation method, and program |
| JP5195707B2 (en) * | 2009-09-30 | 2013-05-15 | ブラザー工業株式会社 | Head mounted display |
| JP5510067B2 (en) * | 2010-05-25 | 2014-06-04 | セイコーエプソン株式会社 | Head mounted display |
| KR102028732B1 (en) * | 2012-04-05 | 2019-10-04 | 매직 립, 인코포레이티드 | Wide-field of view (fov) imaging devices with active foveation capability |
| TWI453462B (en) * | 2012-04-09 | 2014-09-21 | Nat Applied Res Laboratories | Telescopic observation for virtual reality system and method thereof using intelligent electronic device |
| CN107111142B (en) * | 2015-01-06 | 2021-04-27 | 伊奎蒂公司 | Head-mounted imaging device with curved microlens array |
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| CN104635341B (en) * | 2015-02-11 | 2017-08-22 | 深圳市安华光电技术有限公司 | A kind of free hand drawing image source binocular near-eye display device |
| CN104714303B (en) * | 2015-03-12 | 2017-08-22 | 深圳市安华光电技术有限公司 | A kind of free hand drawing image source binocular near-eye display device |
| CN107436489A (en) * | 2016-05-25 | 2017-12-05 | 台达电子工业股份有限公司 | Head mounted display |
| CN105842853A (en) * | 2016-05-31 | 2016-08-10 | 惠州Tcl移动通信有限公司 | Intelligent watch based virtual reality helmet and control method thereof |
| CN110658626A (en) * | 2018-06-29 | 2020-01-07 | 深圳市掌网科技股份有限公司 | Head-mounted display device |
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| WO2020062124A1 (en) * | 2018-09-29 | 2020-04-02 | 北京蚁视科技有限公司 | Thin-type large view-field angle near-eye display device |
| CN110007475A (en) * | 2019-04-17 | 2019-07-12 | 万维云视（上海）数码科技有限公司 | Utilize the method and apparatus of virtual depth compensation eyesight |
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Also Published As
| Publication number | Publication date |
|---|---|
| RU2008130354A (en) | 2010-01-27 |
| AU2003297061A1 (en) | 2005-07-14 |
| EP1692559A1 (en) | 2006-08-23 |
| WO2005062105A1 (en) | 2005-07-07 |
| CA2548398A1 (en) | 2005-07-07 |
| CA2548398C (en) | 2010-12-07 |
| JP2007524856A (en) | 2007-08-30 |
| CN1894617A (en) | 2007-01-10 |
| BR0318647A (en) | 2006-11-28 |
| CA2686656A1 (en) | 2005-07-07 |
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