TWI262339B - Multiple imaging arrangements for head mounted displays - Google Patents

Abstract

A head mounted display is disclosed that utilizes a single video display screen to transport images to both eyes. Multiple reflections are created by illuminating the display screen form a plurality of directions, or by illuminating the display screen with light beams of differing polarizations. The reflections of the display screen are focused in order to reduce the splitting volume and then redirected by a plurality of reflective surfaces located near the focal point of the display images. Different images may be sent to each eye of a user by interlacing multiple data streams for the display and linking each data stream with a specific illumination direction, or specific polarization.

Description

1262339 发明, INSTRUCTION DESCRIPTION: TECHNICAL FIELD OF THE INVENTION The present invention generally relates to a visual display for generating multiple images from a single display screen. , in more detail, optical system of a wearable system [Prior Art] an image-like display device that can be used as a self-contained television, computer application, game console, or head mounted display (HMD) , digitally versatile discs and other similar applications to display images. HMD can be added for monocular. Xia Thorn (viewing a single image from one eye), binoculars and viewing 0HOCU (4) (viewing a single image from two eyes), or binocular (b_eular) (viewing different images per eye) display. In addition, the image projected onto the (two) eyes can be viewed by the user 70; double-viewed, or superimposed on the user's view of the outside world. For most HMD designs, such as image resolution, the distance of the virtual image from the eye, the size of the virtual image (or the angle of the virtual image), the virtual image distortion, and the distance between the user's left pupil and the right pupil (the distance between the pupils ((4)) must be considered. )), refraction and positive again ~ like the knife break and the transmission of light loss, power consumption, weight and the number of meals. Ideally, the single_HMD can be displayed for multiple users, taking into account the number of > regardless of whether the image is a stereoscopic binocular image or a simple single image f (m_seGPie) binocular image. The resolution of the image on the right HMD internal display is 8 〇〇χ 6 〇〇 pixels, and the acceptable virtual image size produced by the HMD optics is about 丨.5 m (52, 56") virtual image diameter, which corresponds to a viewing angle of about 36. To better fit the human head and eyes, the IPD should be 45 mm

0 \90\90299 DOC -6 - 1262339 varies from / 5 mm. In order to compensate for the sputum, for the supplement of sputum or near vision, at least the diopter correction of the soil 3 is necessary. Using only one micro 颂 φ and 贝 in the HMD, rather than using one for each eye, greatly reduces the price of the device. σσ . ^ 3 Typically, this single configuration configures the microdisplay in The user's eyes are sucked and the resulting image is then split, enlarged, and transmitted to I u q9 ± ^ mother / eye, respectively. In the single display HMD of the display with the name of the text, the beam splits, but none of them can provide cheap, light weight, small size and various images (4) The application of the head-mounted system requires that the information transmitted to the right eye of the user is different from the information transmitted to the left eye of the user. For example, in order to transfer the 3D image to the use, The user's two eyes are required to be able to view different perspectives of the same image (pmpeetlve). In other applications, for example, systems for projecting data onto the user's field of view (sometimes called, looking up the display ( Heads-up d Lsplay)”)’ may need to transfer completely unrelated material to each eye. SUMMARY OF THE INVENTION Embodiments of the present invention can generate a plurality of images that are independent of a single display screen, the images being focused by a lens, and then separated by a splitter located near the focus of the generated image. Orientation. In the _presentation embodiment, the image is generated from the illumination-single-display screen, and multiple images of the display screen are generated. The images are then split into a plurality of sub-images that are transmitted to the user's eyes in a reduced split volume caused by the lens. (d) A specific embodiment may utilize a -symmetric v 〇\90\卯29<? DOC-7- 1262339 mirror splitter consisting of two or all of the reflective surfaces disposed around the focal point of the lens. The images are then reflected by the partially or fully reflective surfaces and are directed along the separated sub-paths to the individual eyes of the user. Other embodiments may generate a plurality of independent images of the display screen by illuminating a display screen with a differently polarized light source. The resulting image can be split by an asymmetric v-mirror consisting of a -polarized beam splitting surface disposed near the focus of the lens and a total reflective surface. Light from various sources is reflected to different sub-optical paths. In a specific embodiment, a plurality of shirt images of a single display screen can be generated by illuminating a display screen with a light source to polarize the light reflected from the display, and then in one of several directions. Changing the polarization center changes the direction of polarization, and the sub-image can be redirected to different sub-paths by the asymmetric V-mirror. Some embodiments may also utilize a diffuser in which the image of the display is shot at a scale of k & Transition optics with a small numerical aperture (nsitlon ophcs) can be used to project a real image (rea{image) onto the diffuser and an eyepiece optic with a large numerical aperture can be used to deliver the image to the user's eye. In order to use a display screen to generate different images for each eye of the user, a specific embodiment of the hair month can be used to display a plurality of consultations on the single display screen. And each data stream can be f & 45: -τ* ^ ^ with one of the multiple illumination sources. The interleaved data streams can then be displayed on the display screen, and the display screen is illuminated by the associated illumination sources. To create a mixed shirt image, only when the display is being displayed with a specific illumination

O:\90\90299 DOC 1262339 When the source is associated with a lean stream, the display is illuminated by the particular illumination source. Specific embodiments for generating multiple images by light polarization may correlate each data stream with a - polarization direction. When the display screen displays a data stream, the (9) direction associated with a particular $ data stream is used to transmit the display image of the data stream along the appropriate sub-path. The various illumination sources of the various specific examples of the invention can be broadband light sources. The broadband light source is placed near the focus of the display lens and illuminated by passing the light through the ν mirror splitter. Display screen. Other embodiments may use a plurality of narrowband sources, and (4) the narrowband source is configured to simulate a tributary source. Further, a particular embodiment may configure the illumination source adjacent to the optical axis of the system and reflect light from the illumination sources by interposing a partially reflective surface between the splitter and the display lens. The features and technical advantages of the present invention are more broadly described in the foregoing, so that the following detailed description of the invention can be better understood. The subject matter of the patent scope. It will be appreciated that the concepts and specific embodiments disclosed may be readily utilized as a basis for modifying or designing other structures for performing the same. It should also be understood that the equivalent constructions do not depart from the invention as set forth in the appended claims. When considering % with reference to the drawings, we can better understand the novel features of the organization and method of operation believed to be characteristic of the invention, as well as other objects and advantages from the following description: however, 'should be clearly understood' Each of the figures is provided for the purpose of illustration and description, and is not intended to limit the scope of the invention. [Embodiment] 〇 \90\90299 DOC -9-1262339 FIG. 1 illustrates a top view of a head mounted device 100 configured in accordance with an embodiment of the present invention. Sub-image creation area 丨01 (in device 1〇〇) creates a plurality of sub-images from a single image source. The display screen can be any suitable device operable to display a visual image of the material by using an external, day, or source, such as a liquid crystal display (LCD) screen. The display screen 110 is placed along a display axis lu. In the specific embodiment, the display axis 111 and the surface of the display screen 11 are positive.

It intersects and is perpendicular to the facial plane 170 of the user. The display lens 115 is positioned to be perpendicular to the optical path 11 2 and has a display lens focus 丨24. The display lens focus 124 is located on the optical path 112 and the area 1〇1 is configured such that the display lens # focus 124 is located within the splitter 120. In a particular embodiment of the use zone configuration, the splitter 120 is a symmetric v-mirror comprised of a partially reflective surface 121 on the right side and a partial reflective surface 122 on the left side. The zone 1〇1 is configured such that the reflective surface 12 1 shares a common edge with the reflective surface 122 and is symmetrically disposed about the display axis. Region 101 can thus generate two completely complete and independent images of the display u (referred to herein as sub-images), each image traveling along a separate optical path (referred to herein as a sub-path). I includes a right source 125 and a left source 126 in region 101 that are in line with display mirror focus 124 and are symmetrically disposed about display axis i. The light from the light sources 125 and 126 passes through the surfaces 121 and 122, is collimated by the display lens 115, and the display screen 1 1 〇 is known. In the particular embodiment of Figure 1, the resulting collimated beam will be slightly tilted relative to the optical axis. Displaying the illumination by the right source 125 creates a display dlsplay lefVeye sub-image that is focused by lens 115 to illuminate the reflective surface 122, which reflects the left sub-image down Redirect to sub-path 丨4〇. Similar to 0 '-90\90299 DOC -10- 1262339, the display screen no illumination by the left source 丨 26 will create a right eye display sub-image, which is focused by the lens 1 15 to illuminate the reflective surface 丨 2 丨, the reflective surface 丨2. Redirect the right eye display sub-image down to the sub-light path 1 3〇. The a left eye view will travel along the sub-path 140 and be directed to the user's left eye 146. The left-eye reflector i 42 is placed along the sub-optical path 丨4〇, which is configured to change the left-eye optical path 丨4〇 by 9〇. The direction is redirected to all of the reflective surfaces in the left eyepiece optical member 145. The right eye sub-image will travel along the sub-optical path 1 j 0 and be directed to the user's right eye 136. The right eye reflector 1 32 is placed along the sub-optical path 130, which is configured to change the right eye sub-diameter 130 by 90. The direction is redirected to all of the reflective surfaces in the right eyepiece optics 135. The right eyepiece optics 135 and the left eyepiece optics 145 may be comprised of a single or multiple lenses that are designed to properly magnify the right eye sub-image and the left eye sub-image for viewing and use by the user's right eye 36, respectively. The left eye 146 is examined. Some embodiments may utilize a diffuser on which to create a real image. The right and left eyepiece optics 135, 145 can then be used to magnify the images for viewing by the user. To obtain a larger viewing angle (e.g., 3 6 ), the dedicated image should be created after the reflectors 1 3 2, 14 2 and close to the right and left eyepiece optics 丨 35, 145. The eyepiece optics 135 and 145 are adjustable single lenses, but other embodiments may use any configuration that properly magnifies the right eye sub-image and the left eye sub-image for viewing the right eye 136 and the left eye 146. Moreover, although the reflectors 132, 142 of the device 100 are depicted as mirrors and the surface turns 21, 122 are depicted as partially reflective surfaces, the particular embodiment is not limited to the use of mirrors or partially reflective surfaces to redirect a light path. Or sub-light trails. Instead, you can

O:\90\90299 DOC -11 - 1262339 A polarized beam splitter or any other suitable configuration for redirecting a light path or sub-path.

The device 100 can also adjust the different 1PD of different users by the synchronous movement of the optical elements. The right eyepiece optics 135 and the left eyepiece optics #145 can be shifted by motions 152 and 151, respectively, to create IPD 1 50a and IPD l) 0b. Zone 101 can be shifted by motion 155. When the IPD distance 150a becomes the IPD 150b, the zone 1 〇丨 simultaneously moves 155 (from the view i is considered downward) to the plane 170. When the IPD 150b becomes the IPD 150a, the zone 101 is simultaneously removed from the plane 170 (as viewed upward from Figure 1). The synchronized motion allows the device 1 to adjust to accommodate the entire range between 1?0 150a and IPD 150b while maintaining a constant distance between the reflective surface 12 122 and the eyepiece lenses 135, 145 along the sub-paths 130 and 140, respectively. length. The device 10 can also be diopter corrected by an additional adjustment of the motion 153 of the left eyepiece optical device 145 and the motion 154 of the right eyepiece optics 135.

Two off-axis aperture stops 189, 199 can be placed between display lens 115 and splitter 120. The aperture stop is imaged near the viewer's pupil and its dimensions are properly conditioned to the width of the pupil movement as the user views the corner of the virtual screen. To accommodate a wide range of viewer pupil motions, the aperture size should be 2-3 times larger than the size necessary to transfer the spatial frequency range required for the resolution of the display. To evenly illuminate the aperture stop 189, 199, the left and right light sources 125, 126 should have an extended (non-point source (n〇np〇ints〇urce) R+. The display screen 11 of Fig. 1 can simultaneously transmit the same image of the display screen H0 to the left and right eyes of the user. When two light sources 1 25 and 1 26 are used for simultaneous illumination

〇 \90\9029Q DOC -12- 1262339 When the screen 110 is displayed, the same sub-image of the display screen will travel along the sub-paths 140 and 140. However, if the light sources 125 and 126 alternately illuminate the display screen, a set of images can be sent to the left eye of the user by the same display screen, and a different image set can be sent to the right eye of the user. 2 is a flow chart arranged in accordance with an embodiment of the present invention. According to the chart 200, when a single display screen is used, the head mounted device such as the device 1 can be used to transmit the image transmitted to the right eye of the user to the left eye of the user. Generally, the display screen of the head mounted device (such as the display screen 110 of the figure) does not show the data conveyed as a stream of data. In Figure 2, the tile is called to prepare multiple streams for display on the display. For example, a data stream can be prepared for the user to view the left eye, and a second data stream can be prepared for: the user's right eye view. In block 202, each data stream is associated with one of a plurality of illumination sources for a suitably configured head mounted display. For example, by using the device 100 of FIG. 1, the lean stream prepared for the user's right eye view can be associated with the left source 126, and the data stream and the right source are prepared for the user's left eye view. 125 related. Returning to Figure 2, Figure 2-2 interleaves multiple streams so that they can be displayed on a single display. In block 204, the interlaced streams are displayed on -F and simultaneously illuminated by the source associated with the data stream being displayed. For example, by using the device 100, when the display screen 110, the staff member does not view the data stream to be viewed by the right eye 136, the display screen i i Q will be subjected to the left two 26, 3⁄4. When the user's left eye is to be viewed for viewing, the display screen 110 is illuminated by the right light source 125. Figure 3 graphically illustrates a capital according to an embodiment of the present invention.

〇 \9〇\9〇299 DOC -13· 1262339 The interlacing of streams and the connection to the light source. Graph set 3 10 contains a graphical representation of data stream 3 and data stream 3 12 . When used in a manner such as that described above, a particular embodiment can cause data stream 3 11 and data stream by alternately transmitting a discrete dme segment of each data stream to a display. 3 1 2 interlaced. For example, during time period 34, a portion of data stream 3 11 is sent to the display for display. During time period 342, a portion of data stream 3 1 2 is sent to the display for display. Graph 320 displays the timing of the light source associated with data stream 3 11. When a particular embodiment sends a segment of data stream 3 11 (e.g., time segment 341) to a display, the light source associated with the data stream (shown as light source 321 in graphic 32A) Display screen for illuminated head mounted displays. Graph 33 shows the timing of the light source associated with stream 3 12. When a particular embodiment transmits a segment of data stream 3 12 (e.g., time segment 342) to a display, the source associated with the data stream (shown as light source 33 in Figure 33A) Display screen for illuminated head mounted displays. These specific embodiments of the invention are not limited to the stereoscopic techniques depicted in Figures 2 and 3. Any type of patch that allows a plurality of signals to be interleaved can be used. The specific type, number of streams, and number of light sources will depend on the application. For example, many LCDs use color sequential illumination to transmit red, green, and blue pulses into sequential lcd images. To this end, embodiments may employ light sources 丨25 and 丨, which utilize independently controllable red, green, and blue light sources. An additional configuration for generating a display screen 1 像 other embodiments of the image - for example, illuminating the display screen with light having a polarization direction of the parent, may require the above procedure

0 \90\90299 DOC -14- 1262339 The sequence is adjusted. The specific embodiment of the present invention is not limited to such as described in FIG.

1 3 0 The right eye image of the march. With respect to device 4, left eye transition optics 443 left eye light path 140 is placed to adjust the left eye sub-image before the left eye sub-image reaches the left eye reflection 142. The left eye reflector 142 reflects the left eye sub-image to the left eyepiece 460. The left eyepiece 460 is composed of composite optics (c〇mp〇und optics). The left eye subimage reaches the left eye diffuser 444 and creates a real image on the surface. The left eyepiece composite optic will create a properly magnified virtual image from the real image for the left eye 146. Similarly, a right eye image travels along the right eye path 1 3 , into the right eye transition optics 433. The right eye transition optic 433 appropriately adjusts the right eye display sub-image to be reflected by the right eye reflector 132 into the right eyepiece 46 1 . The right eyepiece 461 is composed of composite optics. A right eye image reaches the right eye diffuser 434 and creates a real image. An enlarged virtual image is created from the real image for the right eye 13 6 by the composite optics. The device 400 can perform diopter calibration by the motion 253 of the composite optical device 460 and the motion 254 of the composite optical device 461. The two off-axis aperture stops 470, 472 can be placed between the display lens 115 and the splitter 420 to The spatial frequency content of the transition optics 433, 443 is determined. Thus, the size of the aperture stop of O:\90\90299 D0C -15-1262339 in the embodiment of FIG. 4 depends on the resolution of the display, and thus can be used in the specific embodiment of FIG. A smaller aperture. Device 400 can also be adjusted by synchronized motion of individual optical blocks. The IPD ι5 缩短 can be shortened by shifting the left eyepiece 460 to the right by the motion 25 1 and shifting the eyepiece 461 to the left by the motion 252. With respect to the specific embodiment of Figure 4, the length of the sub-optical path i 4 间 between the transition optic 443 and the diffuser 444 and the length between the diffuser 444 and the eyepiece 460 should be kept constant. Thus, when the center block 401 (including the lens 443) is moved vertically away from the face plane, although the eyepiece 460 is moved to the right in motion 251, the diffuser 444 and the left eye reflector 142 will remain in a fixed position. Similarly, the length of the sub-optical path 130 between the transition optics 433 and the diffuser 434 and the length between the diffuser 434 and the eyepiece 461 should be kept constant. Thus, when the center block 4〇1 (including the lens 443) moves vertically away from the face plane in motion 451, although the eyepiece 461 moves to the left in motion 252, the diffuser 434 and the right eye reflector 132 will remain. In a fixed position. Particular embodiments of the invention may include an aperture stop 47〇. The aperture stop 47 〇 allows light to pass through the openings 471 and 472. The openings 471, 472 can be alternately configured as a shutter that can be used to block the propagation of light reflected from the display screen 11(). By using the shutters, device 400 can control whether the image is delivered to any of the user's eyes in a manner that is readily adaptable to the stereoscopic techniques of Figures 2 and 3. By alternately closing the openings 47, 472, and by associating the closure with the display of a particular stream of data, a particular embodiment can only transmit the selected stream to each eye. In the specific embodiment of Figure 4, transition optics 43 3, 443 are used to

0 \90\90299 DOC -16 - 1262339 A magnification of about 1 passes the display image to the diffuser m, 4 4 4 . The numerical aperture of the incident image is then increased by the diffusers 434, 444. The eyepieces 460, 461 then project the real image created on the diffusers 434, 444 into the eyes 136, 146 to form an enlarged virtual image. The specific embodiment of the present invention is not limited to the configuration using the splitter region 1 〇 1. Figures 5 and 5A are top down views of a head mounted device configured in accordance with an embodiment of the present invention. The device 5 includes a sub-image creation area 5〇1. Similar to zone 1 0 1 , zone 50 1 generates a left eye display sub-image that travels along sub-path 140 and a right-eye sub-image that travels along sub-path 1 130. Display screen 110 of zone 5 有利 1 is advantageously illuminated by collimated light from source 570 and source 580, wherein the temple source is configured to project light near the source light path (sourCe light path) 576 and source light path 586, respectively. . Light source 570 is comprised of a blue light source 571 disposed along source light path 576, preferably at or near reflection focal point 524 of display optics n5. The blue light source 517 can be any light source that produces blue light, such as the Nichia NSCx100 series of light-emitting diodes (LEDs). Light from blue light source 571 passes through a first color filter 574 that is configured at an appropriate angle to source light path 576 and is selected to pass blue light and reflect green light. The green light source 572 is placed adjacent to the source light path 576 and is configured to reflect light from the color filter 574 in a manner that simulates placing the green light source 57 2 with the blue light source 5 7 1 The same position situation. The blue light and the reflected green light travel along source light path 576 through a second color filter 575 that is disposed at an appropriate angle to source light path 576. The second color filter 575 is selected to allow blue and green light to pass, but reflects red light. The red light source 573 is placed adjacent to the source optical path 576 and configured to reflect light from the second color filter 0 \Q0\90299 DOC -17-1262339 5 75 in a manner that The mode simulates the case where the red light source 573 is placed at the same position as the blue light source 517. Then, the blue light, the reflected green light, and the reflected red element travel along the source light 576 and are reflected by the source light reflector 590. In the depicted embodiment, source light reflector 590 can be a polarizing reflector disposed adjacent display axis 111 and along light control port 12. The combined blue, green, and red light is polarized and reflected out of the source photo reflector 590 through the display optics 115. In the particular embodiment depicted, display optics n5 is a lens that is selected to have a focus 124 (and a reflective focus 524). When passing through display optics 115, the combined blue, green, and red light illuminates the display pupil with a collimated beam that is slightly oblique to the axis 1丨丨. Light source 580 is comprised of a blue light source 582, which is disposed along source light path 586, preferably at or near reflective focus 524 of display optics 115. Light source 581 can be any light source that produces blue light, such as the N〇chia NSCx100 series of light emitting diodes (LEDs). Light from blue light source 581 passes through a first color filter 584 that is configured to form an appropriate angle ' with source light path 586' and is selected to pass blue light and reflect green light. The green light source 582 is placed adjacent to the source light path 586 and is configured to reflect light from the color filter 584 in a manner that simulates placing the green light source 582 with the blue light source 5 8 1 The same position situation. The blue light and the reflected green light travel along source light path 586 through a second color filter 585 that is disposed at an appropriate angle to source light path 586. The second color filter 585 is selected to allow blue and green light to pass, but to reflect red light. The red light source 583 is placed adjacent to the source light path 586 and configured to reflect light from the second color filter 585 in a manner that simulates placing the red light source 583 with the blue light source. 58 1 The same position of the situation O: \90\90299 DOC -18- 1262339 shape. Then, the blue light, the reflected green light, and the reflected red light travel along the source light path 586 and are reflected by the source light reflector 590. In the depicted embodiment, the source light reflector 590 can be a polarization reflection disposed adjacent the display axis 11 1 and along the optical path η 2 . The combined blue, green, and red light is polarized and reflected out of the source photo reflector 590 through the display optics 丨丨5. In the particular embodiment depicted, display optics 115 is a lens that is selected to have focus 124 (and reflective focus 524). When passing through display optics η5, the combined blue, green, and red light illuminates display 110 with a collimated beam that is slightly oblique to axis 1 Π. Zone 501 of device 500 further includes a splitter 52A that is oriented adjacent display lens focus 1 24 . Zone 5 〇 1 depicts a 稜鏡 splitter 520 configured to be centered on focus 丨 24, but the specific embodiments are not limited to this configuration. If light source 580 and light source 570 are configured to be closer to optical path 112 than reflected focus 524, splitter 52A should be configured to be further from display 110 than focus 124. Conversely, if the light sources 580 and 570 are configured to be further away from the optical path 112 than the reflected focus 524, the splitter 5 should be placed closer to the display 110 than the focus 124. Therefore, the specific embodiment of the present invention is not limited to the configuration in which the splitter 52A of FIG. 5 (or the splitter 12A of FIG. 4 or the splitter 42A of FIG. 4) is placed near the focus of the display lens 115. Instead, it can be placed at any point where the reduced split volume caused by the display image of the disc being focused by optics such as lens 115. The light from the light source 57〇, from the display & output, becomes a scene image of the image 11G, which is focused by the lens U5 and reflected off the split plane 521 and along the sub-path 13〇Booked into 'become-right eye image. Light from & source, self-display (10)

O:\90\90299 DOC -19- 1262339 The anti-gas mountain forms an image of the Π , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , He marched and became a left eye image. The left eye image will travel along the sub-optical path 〇4〇 and be directed to the user's left eye 1 46. The left-eye reflector i 42 is placed along the sub-optical path 丄4〇, which is configured to change the left-eye optical path i 4 〇 by 9 。. Orient and redirect it to the left eyepiece optics to all of the reflective surfaces in piece 14). The right eye sub-image will travel along sub-path 130 and be directed to the user's right eye 136. The right eye reflector ι32 is placed along the sub-optical path 130, which is configured to change the right eye optical path 130 by 90. The direction is redirected to all of the reflective surfaces in the right eyepiece optics 135. The right eyepiece optics n5 and the left eyepiece optics 145 may be comprised of single or multiple lenses that are designed to properly magnify the right eye sub-image for the user's right eye 136 view and to amplify the left eye sub-image. For the user to view the left eye 146. The eyepiece optics 135 and 145 are adjustable lenses, but other embodiments may use any configuration that properly magnifies the right eye sub-image and the left eye sub-image for viewing by the right eye 136 and the left eye 146, respectively. Moreover, although the reflectors 142, 132 of the device 5 are depicted as mirrors, the specific embodiments are not limited to the use of mirrors to redirect a sub-path. Instead, a chirp, a partially reflective surface, a polarizing beam splitter, or any other suitable configuration can be used to redirect a sub-path. Device 500 can also be calibrated for different IPDs of different users. The device 5〇〇0 \90\90299 DOC -20 - 1262339 can be adjusted by the movement of the left eyepiece optics 145 and by the movement of the right eyepiece 135 while simultaneously moving the central portion of the optic perpendicular to the face plane. In order to adapt to a specific user (four) 15 〇. The device 5 can also be operated by the movement of the left eyepiece optics U5 and the right eyepiece optics 145: I perform diopter correction. The specific embodiment of the present invention is not limited to the case of creating a plurality of independent images of a display screen by illuminating the display screen from a plurality of directions, but a method of generating a multi-image from a single display can be used. Figure 6 illustrates a top down view of a portion of a head mounted display configured in accordance with an embodiment of the present invention. Apparatus 600 includes a light source 608' disposed at a reflective focus mR whose light is reflected and polarized by a polarizing beam splitter. Light from source 608 is collimated by lens 115, reflected by display ιι, and propagates along optical path 112. A polarization adjustment unit, such as a polarization rotator, disposed along the optical path 110 that rotates the polarization of light from the source 6G8. The polarization rotator is capable of switching the direction of linear light polarization of the outgoing light (four) Hght. The embodiment of the invention is not limited to the polarization rotator' and is not limited to the use of linearly polarized light. Rather, embodiments of the invention may use a linear 'circle 幵 [ellipse or any form of dipolarized light and any suitable polarization adjustment unit that allows a particular embodiment to distinguish multiple sub-images. The splitter 62 is an _ asymmetrical v-mirror that is disposed near the focus 124 of the lens "5. The surface of the splitter 62 is thinned as a polarizing beam splitter, and the surface 622 is the entire reflecting surface. To transmit the image to the user's left eye, the device 6 selects the state of the polarization rotator 609, which causes the light from the source 6 〇 8 to be reflected along the sub-light scale through the surface a. In order to transmit the image to the user's right eye, the device_selects the state of the polarization rotator 6G9, which causes the light of the light source 6〇8 to pass through the table O:\90\90299 DOC -21 - 1262339 and thus along the surface 622 The sub-light path (10) is reflected. The specific example of Fig. 6 can also be easily adapted to the stereoscopic mirror technique of Figs. 2 and 3. The data stream displayed by the display screen can be interleaved in a manner similar to that described above and associated with the state of the polarization rotator 609. A specific embodiment of using polarization to create a multi-image of a display screen is not limited to the configuration of Figure 6. Figure 7 illustrates a top down view of a portion of a headset that is configured in accordance with another embodiment of the present invention. The apparatus includes light sources 708 and 709 that are configured to illuminate the display screen 11 with two co-incident positively polarized beams. Light source 7〇8 propagates through a polarizing beam splitter. Light source 709 is reflected by a polarizing beam splitter. Thereby, the display screen 11 〇X to the collimated illumination month from the light source 708 which is polarized in one direction and to the collimated light from the light source 7〇9 which is polarized in the other direction... the moon surface 790 is partially reflected The surface, which does not contribute to the polarization of the light from the light sources 7〇8, 7〇9. Light from sources 708, 709, once reflected from display screen 110, is focused by spot Π5 at point 124. The splitter 62 is an asymmetrical v-mirror splitter, wherein 621 is a polarizing beam splitter and 622 is a full mirror, and surface 621 will reflect light from source 709 along sub-light path 13 , Light from source 708 is passed through to reflect off surface 622. The embodiment of Figure 7 can be readily adapted to the stereoscopic mirror techniques of Figures 2 and 3. The data streams displayed by display screen 110 can be interleaved in a manner similar to that described above and then associated with source 7 〇 8 or source 709. By matching the display rhythm of the interleaved data stream, the parent can transmit different data to the user's eyes for P, ?, and bright light sources 7 〇 8, 7 0 9, . O:\90\90299 DOC -22- 1262339 Although the specific embodiments described above use non-skewed illumination, some display types (such as digital light processing (DLP) or other micromirror displays) require skewing. Beam illumination. The particular embodiment of the invention can be easily adjusted to an off-axis position to accommodate these display screens. For example, 7〇8, 7〇9 can be placed in an off-axis position to illuminate two commonly incident oblique orthogonally polarized beams. Although the present invention and its advantages are described in detail, it is understood that various changes, substitutions and modifications may be made herein without departing from the scope of the invention as defined by the appended claims. In addition, the scope of the present application is not intended to be limited to the specific embodiments of the process, machine, and article of manufacture described herein. It will not be difficult for us to understand that 'the processes that perform substantially the same or perform substantially the same results as the corresponding embodiments described herein, processes that are currently in existence or to be developed later, machinery, manufacturing Product, material composition, and component steps. Therefore, the scope of the appended claims is intended to include such mechanical, manufacturing, material compositions, components, methods or steps. BRIEF DESCRIPTION OF THE DRAWINGS For a more complete understanding of the present invention, the above description can now be combined with the accompanying drawings, in which: Figure 1 illustrates one of the implementations of the roots of the day. A top view of a headwear 100 configured as an example; ® 2 is a flow chart arranged in accordance with a specific embodiment of the present invention; FIG. 3 graphically illustrates a flow according to an embodiment of the present invention.

0 \90\90299 DOC -23- 1262339 Interlacing of streams and their connection to light sources. Head mounted wearable head mounted display 4 of the head mounted device is a perspective view of a preferred embodiment of the present invention; FIGS. 5 and 5A are in accordance with an embodiment of the present invention A top-down view of the device; FIG. 6 illustrates a top-down view of a portion in accordance with an embodiment of the present invention; and FIG. 7 illustrates an embodiment of the device not according to one embodiment of the present invention. Part of the top-down view. [Description of symbolic representation] 100 head mounted device 101, 501 area 110 display screen 111 display axis 112 optical path 115 display lens 120 splitter m, 122 reflective surface 124 focus 125, 126, 321, 331, 570, 580, 608, 708, 709 light source 130, 140 sub-light path 132 right-eye reflector 0 \Q0\90299 DOC -24 - 1262339 135 136 142 145 146 150b , 150a m , 152 , 153 , 154 , 155 , 251 , 252 , 253 , 254 , 451 170 189 , 199 , 470 200 310 311 , 312 320 , 330 341 , 342 400 , 500 , 600 , 700 401 433 , 443 434 , 444 460 , 461 471 , 472 right eyepiece optics right eye left eye reflex Left eyepiece optics left eye pupil distance (IPD) moving face plane aperture pupil pattern graphic set lean flow graph time section device center block transition optics diffuser eyepiece opening 0 \90\90299 DOC -25- 1262339

520 , 521 , 522 524 , 124R 571 , 581 572 , 582 573 , 583 574 , 584 575 , 585 576 , 586 590 609 620 621 621 , 622 , 790 690 prism splitting surface reflection focus blue light source green light source red light source first color filter Second color filter source optical path source light reflector polarization reversal splitter surface polarization beam splitter 0 \90\90299 DOC -26 -

Claims (1)

1262339 Picking up, claiming patent scope: 1 generating a plurality of methods including: independent image from a single display screen, the method illuminating the display screen image by a plurality of light sources; and focusing on a display lens by creating a plurality of display sub-hunters Waiting for a sneak peek, each of the displayed sub-images is redirected along a point of a plurality of sub-paths from a point close to the focus of the image. The method of claim 2, wherein each of the light sources illuminates the display screen from a different direction. 3. 4. 5. 6. 8. The method of claim 2, wherein each of the displays The sub-image of the image is related to the direction of the light source for creating the display sub-image. The method of claim 1, wherein the first light source illuminates the display screen by light having a first polarization state, and The second light source illuminates the display screen by the light having a second polarization state. The method of claim 4, wherein the sub-path of the sub-image is displayed and the display sub-image is created. The method of claim 2, further comprising: forming a real image along at least one of the sub-paths. The method of claim 1, wherein the numerical aperture of each of the sub-images Adjusted for viewing by one of the eyes of a user. A method of transferring different images to each eye of a user using a single display screen, the method comprising: creating a plurality of single display screens a sub-image, wherein the sub-images are O:\90\90299 DOC 1262339, and the lens is closer to the far-field display: and from a point close to the focus of the sub-images, each of the sub-images is Oriented to one of a plurality of sub-paths. • The method of claim 8 wherein the plurality of sub-images are created: ～ displaying a plurality of alternating data streams on the display screen, wherein each of the data/ ; L is related to the direction of the light of the display screen. 10. The method of claim 9, wherein the t-first data stream illuminates the display from the first direction The first light source is associated with, and - the data &quot;IL J4 is illuminating the second light of the display screen from a direction of one direction and wherein the display screen is subjected to the first time when the first data stream is displayed Illuminating a light source and illuminating the second light source when the second data stream is illuminated. &quot;• The method of claim 8 wherein the redirecting comprises: focusing each of the sub-images At a focus of the lens; and arranging a splitter close to the focus of the lens. Please use the method of 8 items, where each of the sub-paths is intended for a specific eye view of a user. A. The method of claim 12, wherein the data stream is generated when the user's eyes are inspected - a three-dimensional image. 14. A head mounted display for generating an image, comprising: means for focusing the sub-images; and means for illuminating a display screen from a plurality of directions, wherein a plurality of display screens are created Display sub-images; 〇N9〇\9〇299 DOC -2- 1262339 A component that is close to the focal points of the sub-images for redirecting each of the sub-images along one of the sub-frames. An i5', such as a head-mounted display, wherein the step-by-step includes: source light incident on the display screen from the -first direction to focus the sub-image on a first focus; A second direction is incident on the source light on the display screen, the second light direction focusing the sub-image on a second focus. 16) The head-mounted display of claim 15, wherein the step comprises: constructing a member that blocks light to be inserted into the focusing member and the splitting 17. As in the heading of claim 15 a display, the step-by-step comprising: - a reflective surface positioned to focus light at the first focus along a first sub-path; and a - second reflective surface positioned to follow a second focus Light at the second focus. 18向18. If the head-mounted display of the 15th paragraph of the patent application is applied, the multiple data streams are alternately displayed on the screen, and each of the funds flows with the younger one or the second. Any one of the light directions is associated. 19) If the first data stream is displayed, it is self-explanatory, and the display screen is illuminated only when a poor stream is displayed. 20 - a system for generating multiple images, comprising: a display screen, which is subjected to a plurality of U source illuminations to generate a plurality of ..., a one-page head mounted display in which the first light direction of the display screen is received Taking the second O:\90\90299.DOC 1262339 image; a plurality of optical devices disposed proximate to the display screen to be positioned to focus the sub-images; and at least one redirector' configured The focus is operable near the focus of the at least one sub-image to redirect the sub-image along one of the plurality of sub-paths. 2i. The system of claim 20, wherein each light source illuminates the display screen in a different direction. 22. The system of claim 20, further comprising: an aperture stop interposed between the optical device and the at least one director, wherein light generating each of the sub-images is selectively blocked The at least one reflector is illuminated. 23. The system of claim 20, further comprising: a plurality of data streams alternately displayed on the display screen, wherein each of the data/'IL is associated with at least one light source, and wherein the data stream is When displayed, the display is illuminated by the source associated with the data stream. The system of claim 20, wherein the at least one light source reflector is disposed adjacent a display axis, wherein the light source reflector reflects at least a portion of the light from the plurality of light sources onto the display screen, And transmitting at least a portion of the light reflected by the display screen. 25. The system of claim 24, wherein the source reflector is a polarizing beam splitter. 26. The system of claim 2, wherein the plurality of light sources are disposed adjacent to a display axis, and the plurality of redirectors are inserted at the 0\90\90299 DOC -4- 1262339 display screen A partially reflective surface with the light sources. - A method from the beginning of a single display: 4 methods of independent imagery m are illuminated by a plurality of beams. ^ 5 °Hai is displayed to create a plurality of sub-images, at least two of which are ~ Having different polarization states; and focusing on the sub-images by a lens, wherein each of the sub-images is close to the sub-images of the sub-images Redirected along a separate child. D. 28. The method of claim </RTI> </ RTI> wherein the asymmetric V-mirror redirects each of the displayed sub-images along one of the temple paths. 29. The method of claim 27, wherein the lens is a glass. The method of claim 27, wherein the sub-path of the sub-image depends on the polarization state of the light that creates the sub-image. 31' Hunting is a method of transmitting different images to each eye of a user using a single display screen, the method comprising: interlacing a plurality of data streams 'one of each of the data streams and the incident light Light polarization directions are associated; hunting is performed by displaying the interlaced data streams and illuminating the display screen to create a plurality of sub-images of the display screen, wherein the sub-images are focused by a lens close to the display screen; and self-proximity At the point of the focus of the sub-images, each of the sub-images is redirected to one of a plurality of sub-paths. 32. The method of claim 31, wherein the incident light is linearly polarized, circularly polarized or elliptically polarized. 0 \90\90299 DOC -5 - 1262339 33. 34. 35. 36. 37. 38. 39. 40. 41. The method of claim 31, the first direction of the polarization of the light, Light that is polarized in the two directions is associated. a first data stream and a second data stream and a method according to the third member of the patent application scope, wherein when the first data stream is "," the member is not pressed, the display screen is pressed by "and ^ 5 Haidi has a polarized light month in one direction, and when the second data station-one pay-per-view machine is displayed, the display screen is illuminated by light polarized in the first direction. The method of claim 33, wherein when the first data stream is displayed, the light reflected from the display screen is polarized in the first direction: and when the second data stream is displayed, from the display screen The reflected light is polarized in the second direction. The method of claim 31, wherein the redirecting comprises: focusing each of the sub-images at a focus of the lens; and arranging the asymmetric V mirror The method of claim 31, wherein the lens is a glass, such as the method of claim 31, wherein each of the sub-paths is intended for a specific eye view of a user. Such as the scope of patent application The method of claim 3, wherein the data stream generates a three-dimensional image when the user's eyes are viewed. The method of claim 31, wherein the sub-image is transmitted along the same The sub-path depends on the polarization state of the light that creates the sub-image. A head-mounted display for generating an image, comprising: means for illuminating a display screen by a light beam having at least two different polarization states; 0 \90\90299 DOC -6- 1262339 means for focusing the beams; and one of the focus sub-paths close to the sub-images to redirect each of the sub-uses for use along a complex number 42. In the patent paradigm (4), the head-mounted display (4) 10A, 〇口进-step package today · The light from the unary source, which is incident on the polarization, thereby creating a first sub-image. The younger one comes from the light source Light, which is incident on the display screen and polarized in the direction of the direction, thereby creating a second sub-image. Brother-Fang. 43. For example, the head-mounted type of the patent application range: the display device, the step-by-step package~ a polarized beam splitting surface ^ at one of the child's sub-images and positioned to focus on a light reflected from the display along a first sub-path; and a sub-reflecting surface that is close to the focus and positioned The light reflected from the display screen is redirected along the first path. 44. As in the head mounted display of claim 43, the light polarized in the _ direction of the μ (four) is redirected to the first The light of the user's -first eye' and polarized in the second direction is redirected along the second sub-path to the second eye of a user. 45. As claimed in claim 43 a wearable display in which a first. Hee-lean stream and a - first Haber stream are alternately displayed on the display screen, wherein when the first stream is displayed, the screen is subjected to the first polarization The light illumination of the direction, and wherein the second data stream is displayed, the display screen is illuminated by light from the second polarization direction. 46_ - A method for generating multiple images from a single-display screen, the method comprising: 〇\9〇\9〇299 D〇C 1262339 illuminating the display to generate an image of the display: by means of a lens Focusing on the image; the image is passed through an adjustable polarizer; and depending on the polarization state of the light, the image is redirected along one of the plurality of sub-paths as a sub-image. 47. The method of claim 1, wherein the method further comprises: /cr at least one of the sub-paths forming a real image. 4 δ. The method of claim 46, wherein the sub-image is adjusted as appropriate for one eye of a user. 49. A head mounted display comprising: a light source for illuminating a display screen to create an image, a lens that focuses the image at a point; a polarization singulation unit operable to form the The light of the image is polarized; and the / knife 4 is positioned adjacent to the focus, operable to redirect the image along one of the plurality of sub-paths depending on the polarization state of the image, as a Sub-image. 50. The head mounted display of claim 49, wherein the polarization adjustment unit is a polarization rotator or a polarization modulator. 51. The head mounted display of claim 49, wherein a first and first bee stream are alternately displayed on the display screen, wherein the polarization adjustment is performed when the first lean stream is displayed The unit polarizes the ^-first direction of the image, and when the second data stream is displayed, the light polarization adjustment unit causes the light to create the image to be in a second direction 0 \90\90299 DOC 1262339 52. 53. 54. 55. 56. 57. Polarization occurred. The head-mounted display of claim 5, wherein: the polarized beam splitting surface is adjacent to the focus and positioned to redirect along a first-direction to be polarized in a first direction And a reflective surface 'close to the focus and positioned to redirect light polarized in a second direction along a second sub-path. A system for generating multiple images, the system comprising: a display that is illuminated by at least one light source; a lens that focuses on light reflected from the display screen; and a knife cracker that is placed close to The focus of the light of at least one of the light sources. The system of claim 53, further comprising: a plurality of light sources </ RTI> wherein the light source illuminates the display screen by light having different polarization states. The system of claim 54, wherein the display screen displays a plurality of data streams, wherein each of the data streams is associated with one of the light sources, and wherein the display screen is only associated with the light source When the data stream is displayed, it is illuminated by each of the light sources. A system as claimed in claim 53 wherein the splitter is an asymmetrical V mirror. A system for generating multiple images, the system comprising: a display screen illuminated by at least one light source, a lens that focuses light reflected from the display screen; a splitter that is placed proximate to The at least one light source Q: \90\90299 DOC -9 - ^62339 The focus of the light; and 58. The vibrating rotator is inserted into the lens and the door of the splitter. The system of claim 57, wherein the display screen displays a first data stream and a second data stream, wherein the first data stream is associated with a brother/_polarization square σ and the second data stream is coupled to a second data stream The two polarization directions are associated, and wherein the polarization rotator rotates the light reflected from the display screen in the first polarization direction when the first data stream is displayed, and when the second data stream is When displayed, the light reflected from the display is rotated in the first-polarization direction. 〇;\90\90299 DOC 10-