TW470865B - Optical system for display panel - Google Patents

Abstract

An ultrathin optical panel, and a method of producing an ultrathin optical panel, are disclosed, including stacking a plurality of glass sheets, which sheets may be coated with a transparent cladding substance or may be uncoated, fastening together the plurality of stacked coated glass sheets using an epoxy or ultraviolet adhesive, applying uniform pressure to the stack, curing the stack, sawing the stack to form an inlet face on a side of the stack and an outlet face on an opposed side of the stack, bonding a coupler to the inlet face of the stack, and fastening the stack, having the coupler bonded thereto, within a rectangular housing having an open front which is aligned with the outlet face, the rectangular housing having therein a light generator which is optically aligned with the coupler. The light generator is preferably placed parallel to and proximate with the inlet face, thereby allowing for a reduction in the depth of the housing. An alternative to this type of light generator is an optical system for producing an accurate image on a highly tilted optical panel inlet face surface relative to the image path. The optical system comprises an image source, an imaging element for creating an image of the object in an intermediate image plane, an anamorphic element for reducing anamorphic distortion of the image, and a telecentric element for reducing keystone-type distortion of the image.

Description

4.065 S7 V. Description of the invention (1) Background of the invention The invention relates to the field of display devices. In detail, Tong He Wan. More specifically, the present invention relates to a light =, which is used to transfer an object image to an ultra-thin flat optical display device, to reduce or eliminate the mishaps that often occur when the image is projected on an inclined position with the projected image. Happening. Ode to Ten Background Description Optical screens usually use a cathode ray tube (CRT) to project images to. The standard «aspect ratio is 4: 3 'and the resolution is a vertical bar. The electron beam sweeps the glory in both horizontal and vertical directions, forming a number of pixels, which together form an image. Conventional cathode ray tubes are limited in size and must be quite deep to accommodate the required electron gun. Larger screens are usually required to include different types of image projection. But this type of curtain has many disadvantages when viewing, for example; limited viewing angle, resolution, brightness, and contrast, and this type of curtain is quite heavy in weight and shape. Even more, we would like the black screen of any tone size to appear black to improve the contrast when viewing. However, the front-viewing CRT cannot actually be black, because this type of curtain uses phosphorescent materials to form images, which are not black. The optical panel can be formed by optical waveguides, each waveguide has a first end and a second end, wherein a plurality of first ends can form an exit surface, and a plurality of second ends can form— Entrance surface. The thickness of this type of panel -4-^ This paper size is applicable to China National Standard (CNS) A4 specification (210 X 297 meals) ---------------____ (Please read the precautions on the back before filling in this Page) Chang -------- Order --------- ^ Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 47086 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention ( 2) It is quite thin compared to its height and width, and the plating of the waveguide can be black to increase the black area, but this type of panel requires expensive and bulky projection equipment in order to spread the image light to the entrance surface, and this This kind of equipment will increase the volume and cost of the panel. Therefore, there is a need for an optical panel that not only has the advantages of a stacked waveguide panel, but also does not require the use of expensive and cumbersome projection equipment, and it does not want to increase unnecessary volume and cost due to the use of such equipment. As far as the optical panel is concerned, the depth of the S 'cabinet (including the optical panel and the projection device) is preferably as small as possible. The projection device is usually located in a position that can fit the overall space limitation. Therefore, the position of the projection device requires an acute angle between the image path and the target entrance surface of the panel. And because the surface of the entrance surface is usually highly inclined to the image path, it is important to have an image system that can produce focus without losing the image. Not only do you want a properly focused image, but the image produced on the surface of the entrance surface must also retain the aspect ratio of the original object, while maintaining a linear point-to-point correspondence between the object and the image. Therefore, there is still a need for an optical system for an optical panel, which can produce an accurate image on the entrance surface surface that is highly inclined with respect to the image path, and there will be no wrongly focused image and no wrong length and width of the original object Ratio and irregular linear point-to-point correspondence between objects and images. Mind image Overview of invention

The present invention provides an optical system capable of projecting an object image onto a display image plane of an optical panel at a projection angle greater than zero. The optical system includes an image source and an image element. The image element is in the middle image level S -----------, -------- order ------ I-^ (Please read the note on the back first? Matters before filling (This page)

V. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economics. Description of the invention (3) Generated images of objects. The optical hand spinning Shao Dan ... also includes-deformable elements, which can reduce the distortion of the image, and include-,-6A ^ ^ ^ ^ return to heart, can reduce the wedge-shaped unhappiness of the image. The present invention also provides another combination of an optical system and an optical panel, which shows that the system is to-solve the problems of the prior art with ttr, such as the heavy and cumbersome projection equipment made in the prior art, provided in the present invention- This kind of optical system has a reduced-coasting optical system, which can produce accurate images on the highly inclined entrance surface of the material image path, and the system of the present invention will not produce the wrong focus image and the wrong original object aspect ratio. And irregular linear point-to-point correspondence between objects and images. The invention also retains the advantages of stacked waveguide panels, such as improved contrast and reduced to the thinnest thickness. Other advantages and benefits of the present invention will become apparent from the following detailed description of the invention. Brief description of the drawings In order to understand the present invention more clearly and be easy to implement, the present invention will be described using the following drawings, in which: FIG. 1 is an isometric inspection chart of an ultra-thin optical panel; FIG. 2 is an ultra-thin Side view cut-away view of an optical panel; Figure 3 is a horizontal and vertical cut-away view of an ultra-thin optical panel using a prismatic coupler; Figure 4 is a simple rear view of an optical system with an optical panel; and Figure 5 is an ultra-thin optical Side view of the panel, which uses a better optical system with a telecentric lens element; -6- This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) ---- ^ --------- Install ------- Order --------- Line (Please read the phonetic on the back? Matters before filling out this page) 470865 Employees of the Intellectual Property Bureau of the Ministry of Economic Affairs Printed by the cooperative A7 B7 V. Description of the invention (4) Figure 6 is a side cross-sectional view of an ultra-thin optical panel using another-preferred optical system containing a telecentric mirror element. The detailed description of the drawings should be understood that the drawings and descriptions of the present invention have been simplified to facilitate the description and clear understanding of the elements required by the present invention, and at the same time, for clarity, many visible on a typical optical display panel will be excluded. Other components. Experts in the industry will find those other elements necessary and / or necessary to implement the present invention. However, since such components are well known in the industry and the understanding of the present invention cannot be enhanced, they are not discussed here. FIG. 1 is an isometric view of the optical panel 10. The optical panel 10 includes a plurality of waveguides 10a ′, wherein one end of each waveguide i0a forms an entrance of the waveguide, and the other end of each waveguide 10a forms an exit of the waveguide 10a. The panel further includes a lighting system 12, a casing 14, the lighting system 12 and a plurality of waveguides 10 a fixed in the casing, and the optical panel further includes a coupler 16. Each waveguide 10a extends horizontally, while a plurality of stacked waveguides 10a extend vertically. The plurality of entrance ends define an entrance surface 20 for receiving shadows, such as light rays 22. The plurality of exit ends define an exit face 24, which is actually parallel to the entrance face 20 for displaying light rays 22. The light 22 may be displayed in a form similar to, but not limited to, a video image 22a (video image). The volume of the casing 14 is larger than the combination of the lighting system 12 and the plurality of waveguides 10a to allow the plurality of 10a and the lighting system 12 to be placed. The casing 14 has an open end to allow viewing of the exit surface 24 and a closed depth D so that the back of the casing 14 can be seen from the open end. -7- The size of this paper applies to China National Standard (CNS) A4 (210 X 297 mm) -------------- installation ------- order ---- ----- Line '(Please read the notes on the back before filling out this page) 4? 〇 A7

V. Description of the invention (5) Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs The light emitting system 12 provides a light that can be seen through the waveguide 10a. The lighting system i2 includes a light source 30 and a light redirecting element 32, which can redirect the projected light 2 2 from the light source 30 to the coupler. The light redirecting element 32 and the coupler 1 6 After the combination, the depth D of the case i 4 can be reduced. When the light redirecting member 32 is set to turn the light 22 from the light source 30 to the coupler 6, and then the coupler sharply turns the light 22 to the waveguide 10a, the reduction / woodiness can be reduced, among which The light source 30 is located in the chassis 14 near a plurality of waveguide 10a stacks and parallel to the stack. The coupler 6 is preferably effective at about 4 5. To about 9 0. The image light is diverted so as to produce near-level transmission through the plurality of waveguides 10a. The lighting system 2 may also include a modulator and other imaging optics. This lighting system 12 will be discussed in more detail in FIG. The parallel surfaces of the entrance surface 20 and the exit surface 24 can make the depth of the panel 10 and the enclosure 14 extremely shallow. The panel has a formal thickness τ that is equal to the depth of the waveguide i 0a between the entrance surface 20 and the exit surface 24, and the thickness τ is actually smaller than the height Η and width W of the exit surface 24. For example, the panel 10 can be set to a width to height ratio of 4: 3 or 16: 9 for a standard television. If the height Η is about 100 cm and the width w is about 133 cm, the thickness τ of the panel of the present invention will be about 1 cm. The depth D varies with the thickness T, but in the specific embodiment described above, the depth D of the casing 14 is preferably not greater than about 12 cm. FIG. 2 is a side cross-sectional view of the ultra-thin optical panel 10. The panel 10 includes a plurality of stacked waveguides 10a, a lighting system 12, 2, a coupler 16, and a casing 14. In a specific embodiment of the present invention, the lighting system 12 includes a projector Paper size applies to China National Standard (CNS) A4 (210 X 297 mm) --------------- ^ -------- Order ------- --Blow (please read the note on the back? Matters before filling out this page) 47 (386 〇A7 B7 V. Description of the invention (660), the projector is optically aligned with a light redirecting element 32. An image projection On the light redirecting element 32 and then to the light closing device "for transmission through the waveguide 10a, it is displayed on the exit face 24. In the preferred embodiment, the projector 60 is located close to the entrance At the top of the surface 20, parallel image light rays 22 are projected, and the spacing distance is relatively large to allow the image light rays 22 to be diverted from the light redirecting element 32 to the coupler 16 so as to be transmitted through the waveguide i0a. The projector 60 may A suitable light source 30 is included to generate light 22. The light source 30 may be a light bulb (such as a filament or an arc) or laser light. The projector may be The slide projector or video tape projector of the transformer 62 is used to modulate the light 22 to form an image 22a. The modulator 62 may be, for example, a conventional liquid crystal display (LCD), digital micromirror device (DMD), , Laser grating concealer, PDLC, LCOS, MEMS, or CRT. The projector 60 may also include suitable imaging optics 64 to spread or spread the image light 22 and pass the light horizontally and vertically. Re-directing element 32 to properly focus transmitted light onto coupler 16. The imaging optics 64 may include lenses and / or mirrors for focusing and magnification. One or more lighting systems 12, such as 2 and 4 for example The system can be used to provide light to one or more parts of the coupler 16. The magnifying lens can be used for the imaging optics 64 and the light redirecting element 3 2 'for magnifying the image light 2 2' in horizontal and vertical directions Pass the coupler 16. In addition, an appropriate grating system can be used as the light emitting system 2 to form an image, and the image light 22 can be used as a grating to pass through the coupler 16 horizontally and vertically. Concrete In the example, at the beginning, the light M is located in the case 14. The paper size applies the Chinese National Standard (CNS) A4 specification (21 × 297 mm) (please read the precautions on the back before filling this page). Installation --- ----- Order --------- Printed by the Consumer Cooperative of Intellectual Property Bureau, Ministry of Economic Affairs

The projector 60 printed by the Consumer Property Cooperative in the Intellectual Property Bureau of the Ministry of Economic Affairs projects vertically downward to the bottom of the cabinet equipped with the light redirecting element 32, and then the light redirecting element 32 vertically directs the image light 22 at a small acute angle Redirected to spread across the entire exposed surface of the coupler 16. In another specific embodiment, the projector 60 may be located below the entrance surface 20 instead of behind the entrance surface 20. The allowable projection angle of the shirt like light 2 2 projected on _coupling device 16 depends on the ability of 16 to turn light 22 to the entrance surface 20 of panel 10. The stronger the steering capability of the coupler 16 is, the closer the projector 60 can be installed to the position of the coupler 16 in order to reduce the depth required by the casing 4. FIG. 3 is a cross-sectional view of the ultra-thin optical panel cut horizontally and vertically. The panel 10 includes a plurality of vertically stacked optical waveguides 10a, a light emitting system 12 (see FIG. 2), a coupler 16 and a casing 14. Each of the plurality of waveguides 10a includes a central transparent core 80, which has a first refractive index. The core 80 can be formed using known materials suitable for light wave penetration in the industry, such as heat-resistant organic glass and polymers, but is not limited to the two materials mentioned above. The core 80 can be formed of optical plastic, such as Lexan®. The material is developed and marketed by General Electric Company®, or it is formed of glass, such as BK7 glass. The preferred embodiment of the present invention employs a special glass sheet, which has a typical thickness of 2 to 100 microns, and has an easy-to-use length and width. The central core 80 is covered with at least two plating layers 82. The electric key layer 82 close to the glass has a second refractive index, which is lower than that of the core 80. Therefore, when the light 22 is allowed to transmit through the core 80, it is actually reflected internally. The electroplating 82 can be in accordance with the Chinese National Standard (CNS) A4 specification (210 X 297 mm) at this paper size. I ^ -------- Order --------- Jun (Please read the back Note: Please fill in this page again) 470865 Printed by A7 B7, Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (8) Suitable plastics, such as heat-resistant plexiglass, glass, adhesive, polyurethane, low refractive index Polymer, or epoxy resin, and the color is preferably black. If multiple plating layers 82 are used, a clear plating layer is preferably in contact with the glass, and a black layer is placed between adjacent clear plating layers, thereby improving the internal reflection of the exit surface 24 and the light 22 through the core 80 Visible contrast. Using at least one black layer can improve contrast by providing additional black on the exit face 24. In addition, the exposed end of the black layer on the exit surface 24 can be directly seen by the audience. In addition, after entering the waveguide, the light passing off-axis and passing near the exit surface 24 will be absorbed by the black layer inside. The black layer can be formed in any suitable manner, such as a black spray paint or an epoxy adhesive, which will bond the adjacent cores 80 within one or more black layers together. The method of forming the plated layer 82 and the core 80 will be discussed in more detail below. The waveguide 10a of the preferred embodiment is in the form of a smooth strip extending continuously along the width of the outlet face 24 in the direction of the water t. The strip waveguides 1 are preferably stacked vertically along the height of the exit face 24 as best. Therefore, the vertical resolution of the panel 10 depends on the number of waveguides i0a stacked along the height of the exit face 24. For example, 'stacking 525 waveguides will provide a resolution of 525 vertical lines. In the process of forming a plurality of stacked waveguides, a first broken glass sheet is first placed in a slot, and the size of the slot is slightly larger than the first glass sheet. The tank is then filled with thermally cured epoxide. The epoxide is preferably black in order to form a black layer between the waveguides, thereby providing improved visible contrast. Furthermore, the epoxide should have the characteristics of a suitable electroplated layer 82, such as having a lower refractive index than sloped glass flakes, to allow all of the light 22 to be within this paper rule. Applicable standard (CNS) A4_iiTm () X 297 mm Love) 1 ------------ -------- Order ---------- End (Please read the notes on the back before filling this page) -11- 470863

Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs: Glass reflection. After filling the groove, the glass sheet 8Q will repeat the stack L and form a layer of epoxide between the mother-glass sheet. This stacking operation is preferably repeated until a sheet of about 5⑽ to a sheet is stacked. The pressure is then applied to the β-heap®, which causes the epoxide to flow into the glass sheet: the layer that is generally consistent. In the preferred embodiment of the present invention *, the obtained layer is located between the glass flakes 8 (), which is about 2 ° C. The material is baked and prepared below the Celsius scale. The interval is the time required to prepare the epoxide, after which the stack is slowly cooled to avoid cracking the glass. After the preparation action, the stack is sawed off with a saw: = such as diamond, but not limited to using this rafter, cut the stack # to the desired size. Then, the cut surface of the panel can be polished with a diamond drill polisher 'to remove saw marks. In a preferred embodiment of the present invention, a plurality of glass flakes 80 are coated with a material having a lower refractive index than glass, or immersed in the material, and the plurality of coated flakes are coated with glue or heat. The cured epoxide is fixed in two '. The epoxide is preferably black. A first coated glass sheet 10 is seated in a slot slightly larger than the first-coated glass sheet, filled with black thermally charged black epoxy, and then repeatedly stacking the coated glass. Sheet 10a forms a layer of epoxide between each coated glass sheet 10a. In this case, the stacking operation is preferably repeated until about 500 to 800 sheets are stacked. A consistent pressure is then applied to the stack, the epoxide is then prepared, and the stack is then sawn to the desired size. The stack can be sawn, prepared, or flattened 'and frozen or polished after sawing. In another specific embodiment of the present invention, the width of the glass sheet 80 is preferably ------------- installed -------- ordered -------- -End (Please read the notes on the back before filling out this page) 12-

470865 Printed by A7 B7, Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs 5. The invention description (10) is between 0 · 5 " and 1.0 '' and has an easy-to-use length, such as 1 2 " to 3 6 " between. When sheets 80 are stacked, there is a layer of black UV adhesive between each sheet 80. Ultraviolet radiation is then used to prepare each adhesive layer ' and the stack can then be cut and / or polished. After opening and / or polishing the remote stack, 'Each specific embodiment of the method described above further includes bonding a coupler 16 to the entrance face 20 of the stack and fixing the stack' such that the coupler 16 Adhesive into the rectangular casing 4. The stack is fixed such that the open end of the cabinet is aligned with the exit surface 24, and the lighting system 12 inside the cabinet 14 is optically aligned with the coupler! 6Align. The light 2 2 provided by the luminous support system 12 is projected on the _coupling device 16, in fact, as discussed in FIG. 2. The light source 30 of the lighting system 12 can be installed in a suitable position in the casing 14 to reduce the volume and depth of the casing 14. The light source 30 is preferably installed in the housing 14 and immediately after the top of the entrance surface 20, and just starts to project the light vertically downward, and then the light 22 is redirected by the light redirecting element 3 of the lighting system 12 2 is turned into a vertical upward projection, and then the light reaches the coupler 16. In a preferred embodiment of the present invention, the individual waveguides 10a extend horizontally without tilting, so that the image is allowed to be transmitted directly horizontally through the waveguide 10a for direct viewing by the audience, thereby allowing the audience to receive the full intensity light 2 2, To get maximum brightness. Optionally, a piece of diffusing material can be added to the exit surface 24 to improve the viewing angle during display. In addition to adding a piece of diffusing material, a diffusing surface can also be formed on the exit surface 2 4 itself, which can also improve the viewing angle. Therefore, in order to obtain the maximum brightness, the light 22 projected by the lighting system 12 must be turned horizontally. The 稜鏡 coupler i 6 can be used to turn the light at an angle of up to 90 degrees to advance -13- This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) • ------ -------- -------- Order · -------- Jun (Please read the note on the back? Matters before filling out this page) 470865 A7 B7 Employees of Intellectual Property Bureau, Ministry of Economic Affairs Printed by the consumer cooperative V. Description of invention (11) Enter the entrance surface 20. In a specific embodiment of the present invention, a transflective right-corner (TRAF) is used to turn light at 81 degrees. The light coupler 16 abuts the entire entrance surface 20 and can be appropriately engaged therewith to couple or redirect light 22 projected from the lighting system 12 to the entrance surface 20 to transmit through the waveguide 1. a. The waveguide 10a of the present invention may have a limited acceptance angle for receiving the projected light 22, and the coupler 16 is aligned with it to ensure that the image light 22 will be properly turned, and the allowable acceptance Enter the waveguide core within 80 °. In a preferred embodiment of the present invention, the coupler 16 includes a Fresnel triangular groove 16a, which is straight along the width of the entrance surface 20 and maintains a distance from the height of the entrance surface 20 in a vertical direction. In this way, the prismatic coupler 16 can turn the light upward by 90 degrees. In another embodiment of the present invention, the 'shuttle-shaped coupling 16 is a TRAF developed by the 3M company located in St. Paul, Minneapolis, USA. Its trademark is TRAF II®. Alternatively, one option is available. A reflective reflector is placed immediately adjacent to the prismatic coupler 16 to reflect all the deviating light rays 22 in the trench 16a back to the waveguide 10a. In another embodiment of the present invention, the coupler 16 (or the light redirecting surface.) Can also be placed inside the entrance surface 20 itself. The coupling 16 can also be in the form of a diffractive element 16. The diffractive coupler 16 includes a diffractive grating with a large number of small grooves extending horizontally and in a direction parallel to the individual waveguides 10a, and the grooves pass through the height of the entrance face 20 from the vertical direction at a close distance together. The light coupler 16 may also take other forms, including holographic elements, but is not limited to such elements. The chassis 14 actually supports the waveguide stack 10a and the transmitter -14 in a closed space-^ 3 scale Guzhongguanjia Standard (CNS) A4 specification (210 X 297 mm) --------- ------------ Order --------- line (please read the precautions on the back before filling this page) 470865 Printed by A7 B7 of the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs Description of the invention (12) Light system 12. The exit face 24 faces outward and is exposed to the audience and the surrounding light. 'The entrance face 20 and the adjacent coupler 16 face inward. The surface inside the case 14 is taken black.' Contrast provides extra black. This extra black is provided to the exit face 24 due to the passive nature of the waveguide 10a and the coupler 16. When these passive devices are enclosed in a black area, if they are not illuminated by the image light 22 projected by the entrance surface 20, the exit surface 24 will appear black. Fig. 4 is a simplified rear view illustrating an optical system 100 for projecting an image from an image source jo0 onto an optical panel 10 (shown in Fig. 4 for convenience of explanation). The optical system 100 can replace the lighting system 12 described in FIG. 2. The beta optical system 100 includes an image source 110, an image element 120, a deforming element 130, and a telecentric element 140. The optical panel i 0 may be the same type of device as the specific embodiment described above in FIGS. 1-3. Alternatively, the optical panel may be a different type of device, depending on design choices or routine experiments by experienced experts. The image source 110, the image element 120, the deforming element 130, and the telecentric element 140 nominally symmetrically surround a single plane, which ideally hopes to include the center points of curvature of all optical elements. For convenience of discussion, this plane is called "y_? Plane". Here, the 'projection angle Θ is defined as the angle formed by the straight line connected from the center point of the object plane to the center point of the display image plane and the straight line perpendicular to the display image plane. As shown in Figure 5, the projection system uses a lens instead of a mirror. In a specific embodiment using a mirror as an optical element in a projection system, the straight line connecting the center point of the object plane to the center point of the display image plane will "overlap" or "reflect", as shown in Figure 6-15. This paper scale applies China National Standard (CNS) A4 (210 X 297 mm) C Ding Ling, flu n ^^ 1 — ^ inn I n ^^ 1 nm 『aw ί ϋ ^^ 1 If '_ I (Please read the first Please fill in this page again for attention) 4V086 A7 --------- B7 _ _ ..... V. Description of the invention (13) No, the telecentric element used in the case of children is a mirror. The image is projected onto the display image plane at a projection angle 0 greater than W. In a specific embodiment of the invention, the range of the projection angle is about 50. _85. . In a more specific embodiment of the present invention, the projection angle is about 78. . Because the tilt associated with this setting is important, the optical tilt of the image plane is best spread over the entire set of optical equipment. In other words, the optical elements in the entire set of optical equipment, that is, the image element 120, the deformation element 130, and the telecentric element 14, each cause the object image to be tilted. However, it is also possible to use only one or some optical elements in the entire group of optical devices to perform 7G to k tasks. Both the image source 11 and the image element 12 are tilted toward the X axis. Tilting the image source 11 and the image element 120 in this way requires the use of Scheimflug's theorem to cause the middle tilt of the image plane. The image element 120 generates the object image on the intermediate image plane at any one of the angles 1 generated by the image source 11 plane (the “object plane”) and the target population plane 2G plane (the “display image plane”). The deformation element 130 and the telecentric element ^^ are also tilted toward the x-axis so as to generate another intermediate tilt on the image plane. Although the tilt of the anamorphic element 130 is not absolutely necessary for the optical system to produce an oblique image, the anamorphic element 130 can provide a certain degree of tilt, thereby improving the image quality. The image source 110 may be a light-emitting object, such as a LED, or a radioactive object, such as an LED array or a laser. The image element 120 preferably includes a cyclically symmetric surface composed of glass or plastic, and the surface may be spherical or aspherical.疋; The deformation element 130 in the optical system 100 is mainly used to reduce the image. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 _χ 297 public love) (Please read the precautions on the back before filling this page} ; --------- Order --------- Printed by the Consumer Cooperatives of Intellectual Property Bureau of the Saki Ministry of Economy 470865 A7

5. Description of the invention (14) When the distortion is lost, and it is in the optical path of the optical system 100, it is preferably immediately after the image element 120. However, in some settings, it may be desirable that the image element 120 be positioned immediately after the deformation element 130 when it is in the optical path of the optical system 100. In this patent specification, the deformable element is an element having different optical powers on any one of two right-angle axes (such as the 乂 and y axes). The anamorphic element 130 preferably includes three element groups, that is, a positive focus group, and 13 1 a negative focus group 13 2, and a negative image magnification group J 3 3. Of the three component groups, at least one cylindrical or bilaterally symmetric component has a spherical surface. Each 7G component group may optionally include a component having a cyclically symmetric surface, and the surface may be spherical or aspherical. Individual component groups can also be tilted or spread outwardly based on the central longitudinal optical axis 101 (FIG. 4) of the optical system 100, respectively, depending on the type or number of corrections desired. According to this patent specification, such adjustments made by individual component groups can be determined through routine experimentation and will be apparent to industry experts. Each of the component groups can be arranged or adjusted separately from other components of the optical system 1 (including other individual component groups in the deformable component 130). For example, the arrangement or adjustment may require that the negative focus group 132 positively tilts the center longitudinal optical axis 101 of the optical system 100, while the positive focus group 13 i and the negative image magnification group 133 are required for the optical system 1. The central longitudinal optical axis 100 is tilted negatively. Of course, according to this specification, other settings should fall within the% range of the present invention. In addition, not every setting requires exactly three groups of elements (within the deformation element 130). Although ideally, any one of the three component groups within the deformed component group 130 will become the object image. -17- This paper size applies the Chinese National Standard (CNS) A4 specification (21 × 297 mm) ( Please read the precautions on the back before filling out this page) Pack ----- Order --------- Saki 'Printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 470863 A7 ----------- B7______ V. Description of the invention (15) Slanting, but the most important thing is that all tilting effects must be a specific 値 and this effect can be compared by the deformation element 13〇 With fewer or more component groups. The number of component groups in the deformable element 130 can be determined by the optical system, the overall settings of the system (including the above-mentioned tilt), the angle of projection angle Θ, and the desired image quality. The telecentric element 140 in the optical system 100 is mainly used to eliminate the trapezoidal image loss (also known as "wedge" loss) of the image, which usually occurs in image systems with a projection angle Θ greater than zero. Also, if necessary, the telecentric element 140 can be selectively used to cause the object image to be tilted (as described above), or can be used to focus the image. In the optical path of the light chapter system 100, the movement element 140 is preferably located behind the deformation element 13 and the image element 120, and may include a lens, or a mirror, or a lens / mirror combination. As described above, it may be necessary to provide a telecentric element 140 for use as a mirror. As shown in FIG. 6, the optical path of the optical system 100 is folded, thereby reducing the housing containing the optical panel 10 and the optical system 100. The overall depth d of 1 4 (see Figures 1-3). To facilitate the description of the present invention, a telecentric element is a device that causes light to become substantially parallel. In other words, the light reflected from the telecentric mirror element, or the light emitted from the telecentric lens element, will no longer be separated (the shape is not conical), thus causing the object to appear to come from an infinite distance. Depending on the type or amount of correction required, it may be desirable to tilt the telecentric element 140 or spread it outwards based on the central longitudinal optical axis 101 of the optical system 100. Such adjustments to the telecentric element 140 can be determined through routine experimentation. According to the present specification, such adjustments are obvious to experienced experts. In a preferred embodiment, the telecentric element 140 may include a toroidal surface and / or a non-spherical asymmetric surface to improve image quality. -18- This paper size applies to China National Standard (CNS) A4 (210 X 297 Mod gt) t.t -------- Order --------- End (Please read the Note: Please fill in this page again) 470865 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (16) In addition, as mentioned above, a telecentric element U0 can also be provided as a lens, reflector, or lens / reflector Combination to electronically reduce or eliminate wedge loss. For example, the image source π 〇 can be a D MD, set to produce an image of "inverted wedge-shaped misalignment J, which can compensate for the wedge-shaped misalignment caused by the optical instrument of the projection path. Of course, this correction technique can be used to compensate Any other misalignment correction or focusing element provided by the optical system. Although a DMD modulator is used as an example to illustrate this technique, a modulator similar to an LCD can also be used. Figure 5 is used as shown in Figure 4. The side view of the ultra-thin optical panel 10 of the preferred optical system 100 is shown. In the description of the optical system, various characteristics of the surface area of the individual components / groups (such as radius, thickness, glass type, Magnification, and whether the surface is conical), you can use common optical design software, such as ZEMAX (Focus software company) to assist. In the exemplary setting shown in Figure 4, the ZEMAX carcass output The surface information used to describe the surface characteristics is shown in Table 1. The surface information of surface # 4_ # 16 (shown in the left stop of Table 丄) corresponds to the image element 120. Surface # 1 9-# 2 6 、 # 2 9-# 3 The surface data of 1, and # 3 5 39 correspond to the positive focus group 131, the negative focus group 132, and the negative image enlargement group 133 within the deformation element 130, respectively. The surface data of surface # 4 3 corresponds to the telecentricity. Element 14. Of course, other surface information of each element / group will become apparent to the industry according to this patent, so it can be based on the overall settings and The positioning (including the above-mentioned tilt), the projection angle β, and the desired image quality are determined through routine experimentation. -19- This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 public love) , T -------- Order --------- A (Please read the notes on the back before filling out this page) 470865 A7 B7 Printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs Description of the invention (17) Table 1 Data output by ZEMAX software, describing the summary and details of the surface data of each component in the optical system 100. Summary of surface data: Surface type radius thickness. Glass sheet magnification conical OBJ STANDARD infinite 0 21.756 0 1 STANDARD Infinity 0 21.756 0 2 COORDBRK-292.175---3 COORDBRK--249.4148---4 STANDARD Infinity 10.69606 SFL6 64.80751 0 5 STANDARD -74.6184 19.99612 65.37593 0 6 STANDARD 228.0807 10.34738 SK5 50.95582 0 7 STANDARD329 -55.44567 4,999 49.81779 0 8 STANDARD Infinity 19,96982 46.37759 0 STO STANDARD Infinity 6 35.65802 0 10 STANDARD -45/74455 15.99918 SF2 37.60689 0 11 STANDARD Infinity 3.357388 56.80725 0 12 STANDARD -184.6081 14.13996 LAKN22 58.86762 0 13 STANDARD7384-42.9 0 14 STANDARD -66.38955 0.5 75.3492 0 15 STANDARD Infinity 15 SK5 88.60007 0 16 STANDARD -100.051 119.414 91.11639 0 17 COORDBRK--84.414---18 COORDBRK 0 -20- This paper is in accordance with China National Standard (CNS) A4 specifications ( 210 X 297 mm) --------------------- Order ----- III (Please read the notes on the back before filling this page) 4 5 6 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 __B7 Invention Description (18) 19 BICONICX unlimited 20 BK7 157.8103 0 20 IRREGU LA Infinite-20 152,2011 0 21 COORDBRK-108.4461---22 COORDBRK-0---23 IRREGULA Infinite 20 BK7 163.0092 0 24 BICONICX Infinite 0 SAN 214.3203 0 25 BICONICX Infinite 15 SFL56 214.3203 0 26 BICONICX Infinite Large -35 227.1676 0 27 COORDBRK-189.2805-»-28 COORDBRK-0---29 BICONICX Infinity 20 BK7 181.0634 0 30 BICONICX Infinity 0 SAN 201.5716 0 31 BICONICX Infinity 25 SFL56 201.5716 0 32 BICONICX Infinity -45 209.3956 0 33 COORDBRK-364.5128---34 COORDBRK-0---35 IRREGULA -194.006 35 POLYCARB 288.6875 0 36 IRREGULA -194.006 -35 309.3933 0 37 COORDBRK-80---38 COORDBRK-0---39 BICONICX Infinity 30 ACRYLIC 306.0721 0 40 BICONICX Infinite -30 252.3439 0 41 COORDBRK-850---42 COORDBRK — 0. -21------------- 't -------- Order · -------- Λ \ (Please read the notes on the back before filling in this page) This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 470865 A7 B7 V. Description of the invention ( 19) 43 BICONICX -3722.143 0 MIRROR 367.4967 0 44 COORDBRK--35---45 COORDBRK--415---46 COORDBRK-0---47 STANDARD infinite -12.5 BK7 0 0 IMA STANDARD infinite 1272.227 0 ------ ------ Chang -------- Order --------- Yin (Please read the notes on the back before filling out this page) Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs- 22- This paper size is in accordance with Chinese National Standard (CNS) A4 (210 X 297 mm) 470865 A7 B7 (n In II 1 ^ 1 1 · In ^ 1 ϋ nnnnn I (Please read the precautions on the back before filling in this Page) Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (20) Surface information details: Surface OBJ Surface 1 Surface 2 Spread outward X Spread outward Y Tilt X Tilt Y Tilt Z Tilt Surface 3 Outer X Outer Y Outward Y Tilt X Tilt Y Tilt Sequential Surface 4 Surface 5 Surface 6 Surface 7 Surface 8 Surface STO Surface 10

STANDARD

STANDARD

COORDBRK 0 0 -14 0 ο

Spread outward and then tilt COORDBRK 0 0 -3.6145015 0 0 Spread outward and then tilt

STANDARD

STANDARD

STANDARD

STANDARD

STANDARD

STANDARD

STANDARD -23- This paper size is applicable to Chinese National Standard (CNS) A4 (210 x 297 mm) 470865 A7 B7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling this page) 5 Description of the invention (21) Surface 11 Surface 12 Surface 13 Surface 14 Surface 15 Surface 16 Surface 17 Spread outward X Spread outward Y Tilt X towards Y Tilt towards Z Sequential surface 18 Spread outward X Spread outward Y towards X Tilt. Tilt to Y. Tilt to Z. Sequential surface. 19 X radius X conical hole.

STANDARD

STANDARD

STANDARD

STANDARD STANDARD.

STANDARD

COORDBRK 0 0 3.6145015 0 0

Fan out and tilt COORDBRK 0 0 -33.784948 0 0

Incline and then spread out BICONICX 173.59718 0 Rectangular hole -24- This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 470865 A7 B7 ----------- t ·- ----- Order --------- ^ (Please read the notes on the back before filling out this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (22) X half width Y Half Width Y-Outward Diffuse Surface 20 Outward Diffuse X Outward Drift Y Tilt X Inclined Y Spherical Astigmatic Coma Hole X Half Width Y Half Width Y-Outward Diffuse Surface 21 Outward Diffuse X Outward Drift Y To X Tilt to Y Tilt to Z Sequential Surface 22

Spread out X 50 57 -35

IRREGULA 0 0 0 0 0 0 0 0 rectangular hole 50 57 -35

COORDBRK 0 0 33.784948 0 0

Spread outward and then tilt COORDBRK 0 -25- This paper size applies the Chinese National Standard (CNS) A4 (210 X 297 mm) 470865 A7 B7 V. Description of the invention (23) Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs Outward Y: 0 Tilt to X: -37.672381 To Y: 0 Tilt to Z 0 Sequence: Tilt then spread outwards surface 23: IRREGULA Divergence outward X: 0 Divergence outward Y: 0 Tilt X: 0 Tilt Y: 0 spherical surface: 0 astigmatism: 0 Coma: 0 hole: rectangular hole X half width: 35 Y half width: 70 Y-spread outward: -48 surface 24: BICONICX X radius: -218.64119 X cone shape 0 hole: rectangular Hole X half-width: 35 Y half-width: 70 Y-spread outward * -48 -26-(Please read the precautions on the back before filling this page) This paper size applies Chinese National Standard (CNS) A4 specification (210 X 297mm) 470S65 A7 B7 V. Description of the invention (24) Printed surface of the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 25 _ · BICONICX X radius: -218.64119 X conical · 0 hole _ · rectangular hole X half width: 35 Y half width: 70 Y-Divergence: -48 Surface 26: BICONICX X Radius: 173. 59718 X Conical: 0 Hole: Rectangular Hole X Half Width: 35 Y Half-Width: 70 Y-Divergence: -48 Surface 27: COORDBRK Spread outward X: 0 Spread outward Y: 0 Tilt toward X: 37.672381 Tilt toward Y: 0 Tilt toward 0 0 Sequence: Spread outward followed by inclined surface 28: COORDBRK Spread outward X: 0 Spread outward Y: 0- 27- (Please read the precautions on the back before filling in this page) -------- Order .------- 丨 Work 'This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) 470865 A7 B7 V. Description of the invention (25) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs Inclined towards X: -19.557286 Inclined towards Y: 0 Inclined towards Z: 0 Sequence * spread outward and then incline surface 29: BICONICX X radius: -97.933517 X cone: 0 hole: rectangular hole X half width: 58 Y half width: 65 Y- outward spread: -43 surface 30: BICONICX X radius: 218.64119 X cone: 0 hole: rectangular hole X Half Width: 58 Y Half Width: 65 Y-Outward Divergence: -43 Surface 31: BICON ICX X radius: 218.64119 X cone: 0 hole: rectangular hole X half width: 58 Y half width: 65 -28- (Please read the precautions on the back before filling this page) --- 唆 This paper size is in accordance with Chinese National Standard (CNS) A4 (210 X 297 mm) 470S65 A7 B7 V. Description of Invention (26) Printed by the Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs

Y- outward spreading surface 32 X radius X conical hole X half width Y half-width Y- outward spreading surface 33 spread outward X spread outward Y tilt X toward Y tilt toward Z inclined sequence surface 34 spread outward X | Scatter outward Y Tilt X Tilt Y Tilt Z Sequential surface 35 Spread outward X -43 BICONICX -218.64119 0 Rectangular hole 58 65 -43 COORDBRK 0 0 19.557286 0 0 Spread outward and then tilt COORDBRK 0 -53.183452 -2.0483201 0 0 Spread outward and then tilt IRREGULA 0 -29. This paper size applies Chinese National Standard (CNS) A4 (210 X 297 mm) (Please read the precautions on the back before filling this page) 470S65 A7 B7 nnn H · nf n · n (t a (—ft n I nn I (Please read the notes on the back before filling this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (27) Spread outward Y tilt X Inclined Y spherical astigmatism Coma X half-width Y half-width surface 36 diffuse outward X diffuse outward Y tilt X inclined Y spherical astigmatic Coma hole X half-width Y half-width surface 37 diffuse outward X diffuse outward Y X tilt 0 0 0 0 0 0 0 rectangular hole 90 80

IRREGULA 0 0 4.132604 0 0 0 0 Rectangular hole 90 80

COORDBRK 0 53.183452 2.0483201 -30- This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 470865 A7 B7 ------------ -------- Order --------- Green (Please read the precautions on the back before filling out this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (28) Tilt to Y and Z to the surface 38 Outer X Outer Y Outward Y Tilt X Tilt Y Tilt Z Sequential Surface 39 X Radius X Conical Hole X Half Width Y Half Width Y-Outward Divergent Surface 40 X Radius X Conical Hole X Half Width Y Half Width Y- spread out 0 0

Tilt then spreads out COORDBRK 0 0 11.853793 0 0

Fan out and then tilt BICONICX -108,26109 -0.43754756 Rectangular hole 90 78 -63

BICONICX 0 0 Rectangular hole 110 78 -63 -31-This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 470865 A7 B7 V. Description of the invention (29) Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs system

Surface 41 spread outwards X spread outwards Y tilted X tilted Y tilted towards Z tilted sequence surface 42 spread outward X tilted outwards Y tilted towards X tilted towards Z tilted sequential surface 43 X radius X conical hole X half Width Y half width Y- outward spreading surface 44 spread outwards X spread outward Y COORDBRK 0 0 -11.853793 0 0 spread outward and then tilt COORDBRK 0 0 6.25 0 0 spread outward and then tilt BICONICX -2108.2232 0 rectangular hole 510 92 -92 COORDBRK 0 0 -32- This paper size applies to Chinese National Standard (CNS) A4 specification (210 X 297 mm): ------------ --------- Attack (please read the precautions on the back before filling this page) 470865 A7 B7 V. Description of Invention (30) Printed by the Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs

Tilt towards X Tilt towards Y Tilt towards Sequential surface 45 Spread outward X Spread outward Y towards X towards X towards Y Tilt towards Sequential surface 46 Spread outward X towards outward Y towards X towards Y towards Z Surface 47 holes X half width Y half width Y- diffuse outward surface IMA

0 0 0 Spread outward and then tilt COORDBRK 0 0 6,25 0 0 Spread outward and then tilt COORDBRK 0 -78.542123 79 0 0 Spread outward and then tilt STANDARD rectangular hole 518 391 4 STANDARD -33- The standard of this paper applies Chinese national standard (CNS) A4 specification (210 X 297 mm) ----------- -------- Order · -------- ^ (Please read the notes on the back first (Fill in this page again) 4 ^ 〇86!

Description of the Invention (31) V. Hole X half-width γ half-width rectangular hole 518 391 The optical system 100 described above produces a correctly focused image on the surface of the entrance surface 20 of the optical panel 10, and retains the aspect ratio of the original object, At the same time, the linear point-to-point correspondence of the object to the image is maintained. Experts in the industry can find that the present invention still has numerous modifications and changes. For example, if a lens is not used, the image element 12 and the deformation element 13 may also include a mirror or a lens / mirror combination. If you want to provide the image element 120 and / or the anamorphic element 13G as a mirror or provide an additional :::: optical system !. . The optical path can achieve the effect of finger stack or two, thereby reducing the overall depth D including the optical panel 10 and the light battle 114 (Figure 3). The above description and the case with: by: 100 cover all such modifications and changes. The scope of the patent has been stated. I -------- Order ---------_ ^ (Please read the precautions on the back before filling out this page) Printed by the Intellectual Property Bureau Employee Consumer Cooperatives of the Ministry of Economy -34 -This paper size applies to China National Standard (CNS) A4 (210 X 297 mm)

Claims (1)

09888 ABCD 470865 6. Scope of patent application 1. —A kind of projection system U with a projection angle greater than zero — An optical system that projects an image of an object onto a display image plane, including: — an image source; — used to generate an object on an intermediate image plane An image element of the image; a deformable element to reduce the distortion of the image; and a telecentric element to reduce the wedge of the image. 2. The system of item 1 of Shenqing Patent Fanyuan, wherein the angle of the intermediate image plane is an angle between an object plane and the display image plane. 3. The system according to item 1 of the scope of patent application, wherein the center of curvature of the image element, the deformation element, and the telecentric element are aligned on a common plane. mirror. 5. The system according to item 1 of the patent application park, wherein the image element is a lens. 6. The system according to the item of patent application park, wherein the image element is a combination of a lens and a mirror. 7. The system of claim 1 in which the imaging element includes a cyclically symmetric surface. 8. The system of claim 7, wherein the image element includes an aspherical surface. 9. The system according to item 1 of the patent application scope, wherein the image element, the deformation element, and the telecentric element cause the object image to be tilted. 10. The system according to item 1 of the scope of patent application, wherein one or two elements selected from the image element, the deformed element, and the telecentric element cause the object image -35- -install --------- Order --------- line I-r ί Please read the notes on the back before filling out this page) The standard for printing private paper printed by the employee consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs applies the Chinese National Standard (CNS) A4 specification 21〇: 297 mm The consumer property cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs have a preference for printed agriculture. 11 · The system according to item 1 of the patent application scope, wherein the deformation element is a ~ reflector. 1 2. The system according to item 1 of the patent application scope, wherein the deformation element is a mirror. 13 · If the scope of patent application is the first! The system of clause, wherein the deformation element is a combination of ~ a lens and a mirror. · • As claimed in the system of item 1 of the patent scope, wherein the deformation element encloses ~ a cyclically symmetric surface. 15. For the system of item i 4 of the scope of patent application, wherein the image element and the telecentric element are aligned along the central longitudinal optical axis, and wherein the deformed element is inclined with respect to the central longitudinal optical axis and spread outward. 16 · The system of item 14 in the scope of patent claim 4, wherein the deformation element includes a shape-like and non-spherical surface. 17. The system according to item 14 of the scope of patent application, wherein the image element and the telecentric element are aligned along the central longitudinal optical axis, and wherein the deformation element includes spherical and non-spherical surfaces and is opposite to the center The longitudinal optical wheel is oblique and diffuses outward. , 1 _ If the system of item i in the scope of patent application, the deformation element includes a positive focus group, a negative focus group, and a negative image magnification group. ~ 19. The system of item 18 of the patent application park, wherein each group within the deformation element causes the object image to be tilted. ^ 20 · If the system of the 18th in the scope of patent application, wherein each group within one thousandth of the change includes at least one cylindrical element or non-spherical element symmetrical on both sides, -36-This paper standard applies to China Standard (CNS) A4 specification (210 X 297 male f) -------------, Qiu -------- Order · -------- Line {Please first Read the notes on the back and fill in this page) 4 8 ο Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs s___ D8 '-------------- 1 --- 、 Scope of patent application 1' ' For example, the system in the first scope of the patent application, wherein the telecentric element is a reflector. 2 2. The system of claim 1 in which the telecentric element is a lens. 3. The system according to item 1 of the patent application, wherein the telecentric element is a combination of a lens and a mirror. 24. The system of claim i, wherein the telecentric element includes a non-spherical surface. 25. The system of claim 1, wherein the telecentric element includes a toroidal surface. 26. The system of claim 1, wherein the telecentric element includes a non-Symmetry surface. 27. The system according to item 1 of the patent application park, wherein the telecentric element comprises a non-spherical acyclic symmetrical surface. 'As claimed in the system of claim 1, wherein the telecentric element includes a Fresnel surface. 29. The system as claimed in item 1 of the patent scope, wherein the display image plane is defined by the end portions of a plurality of optical waveguides. 30. The system according to item 1 of the patent application park, wherein the projection angle Θ is about 50 ° -85. Inside the van park. 3 1 · The system according to item 30 of the patent application park, wherein the projection angle θ is about 78 ° 〇 3 2. A display system having an optical panel and at least one optical system 'for The projection angle Θ projects the image of the object to the display. 37- This paper size applies the Chinese national standard (α ^ 4 size (21〇χ 297 mm) ^ 1 1- «ί n II ί 1-1 1 II · an f · In n (n 1 bite, tnn ϋ nn I (please read the notes on the back before filling this page) v) v) 4 8 ο printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs where the image element is transparent The image element is transparent, in which the image element includes A8 B8 C8 D8, on the patent application scope image plane, the display system includes an optical panel, including: a plurality of stacked optical waveguides, each waveguide has a first One end and the first end, one of which is defined by a plurality of one end faces, and one of which is defined by a plurality of second ends; and at least one coupler is provided at the inlet face, which will come from the inlet face Unfinished A straight axis of traveling light is redirected to an axis perpendicular to the entrance surface; at least—an optical system, each optical system including: an image source; an image element for establishing an object image on an intermediate image plane; A deforming element for reducing distortion of the image; and a telecentric element for reducing wedge distortion of the image. For example, the application is called the Patent Fanyuan Item 32d system, wherein the angle of the intermediate image plane is an angle between an object plane and the display image plane. 3 (If the system of the scope of patent application No. 32, where the center of curvature of the image element, the deformation element, and the telecentric element are aligned on a common plane. 35. If the system of the scope of patent application No. 32, the image in # — Reflector. 3 6 • System as in Item 32 of the scope of patent application 3 7 • System mirror and mirror combination as in Article 32 of scope of patent application 3 8 • As in Item 32 of the patent application park System 38- Standard (CNS) A4 Specification ⑽χ 挪 公公 爱) ------------ / install -------- order --------- line, (please (Read the notes on the back before filling out this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economics. Cyclic symmetrical surface. : A system declaring item 38 of the patent scope, wherein the image element package has a non-spherical surface. One application is called the Patent Fanyuan Item 32 system, in which the image element, the deformed element, and the telecentric element cause the object image to be tilted. / 41. The system of item 32 in the patent application, wherein one or two elements selected from the image element, the shape 7L element, and the telecentric element cause the object image to tilt. 42. The system of claim 32, wherein the deformable element is a reflector. 43. The system of claim 32, wherein the deformation element is a lens. • The system according to item 32 of the patent application, wherein the deformation element is a combination of a lens and a mirror. • The system of claim 32, wherein the deformation element includes a cyclically symmetric surface. 46. The system according to item 45 of the patent application scope, wherein the image element and the telecentric element are aligned along the central longitudinal optical axis, and wherein the deformed element is inclined relative to the central longitudinal optical axis and spread outward. 47. The system of claim 45, wherein the deformation element includes spherical and non-spherical surfaces. 4 8 · The system according to item 45 of the patent application scope, wherein the image element and the telecentric element are aligned along the central longitudinal optical axis, and wherein the deforming element includes spherical and non-spherical surfaces and is longitudinal with respect to the center Optical axis tilt-39- This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) --------------- Agricultural -------- Order · -------- (Please read the notes on the back before filling in this page) Diagonally and outwardly spread out. 4 9. If the T 4 " system, and death of item 32 of the scope of the patent application, the deformation element includes a focus group, a negative focus group, 5 0 ^ ^ ^ ^, ',,' ', and A negative image zoom group. 50. If item 49 of the patent application park is applied, the system is dead, and each group within the deformed element causes the object image to be tilted. 5 1 · If the scope of the patent application is No. 49, the lack of mystery & heart system, in which the "group" within the deformation element to the cylindrical element or the non-spherical element symmetrical on both sides. The scope system of the scope of the patent No. 32, in which the telecentric element is printed by an employee consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. 53. If the system of the scope of the patent scope of the 32nd application, the mirror. The combination of a system mirror and a mirror according to item 5. 5 5. The aspheric surface of the system as claimed in item 32 of the patent application 56. The system of item 32 as claimed in the patent application, wherein the telecentric element includes an ultra-thin surface 57. The system according to item 32 of the patent application, wherein the telecentric element comprises a non-symmetrical surface. 5 8 The system according to item 32 of the patent application, wherein the telecentric element includes A non-spherical acyclic symmetric surface. 5 9. The system according to item 32 of the patent application range, wherein the telecentric element includes a Fresnel surface. 6 0 · as in the patent application range No. 32 Item system, wherein the display image The surface is unified, where the telecentric element is a penetrating, the telecentric element is a penetrating, and the telecentric element includes a., Order--------- line (Please read the precautions on the back before filling this page) 40- This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 47086 Printed by the Consumers' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs Agricultural A8 Β8 C8 D8 夂, multiple patent applications for multiple waveguides Defined at the two ends. 6 1 · The system according to item 32 of the patent application range, wherein the projection angle Θ is in the range of about 50 ° -85 ^ > 6 2 · As item 6 i of the patent application range A system in which the projection angle is about 78 ° 〇63 ♦ If the system in the scope of patent application No. 32, wherein the display system includes two or more optical systems. 64. In the scope of patent application No. 32 System, wherein the display system includes three optical systems, wherein the optical systems respectively project red, green, and blue light. 65. The system of item 32 of the patent application, wherein each of the plurality of waveguides is formed as a smooth strip to horizontal direction Continue to extend along the exit surface. 6 6. —A method of projecting an object image onto the display image plane with a projection angle θ greater than zero. The method consists of the following steps: projecting an image from an image source; using a The image element guides the object image to the intermediate image plane; a deformation element is used to reduce the distortion of the image; and a telecentric element is used to reduce the wedge distortion of the image. A method for displaying on an image plane of an optical panel, the method is composed of the following steps: projecting an image from an image source; using an image element to guide an object image to an intermediate image plane; using a deformation element to reduce image distortion Loss of confusion; and using a telecentric element to reduce wedge-shaped confusion of the image; wherein the optical panel includes a plurality of stacked optical waveguides, and each wavebook paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 public love)- ------------- 仏 --------- Order --------- line (Please read the precautions on the back before writing this page) 470865 A8 B8 C8 D8 VI. Patent application scope 々, has a first end and a second end 'One of the exit faces is defined by a plurality of%' One of the entrance faces is defined by a plurality of second ends, and the optical The panel further includes at least one coupler on the entrance surface, so that: the traveling light from an axis that is not perpendicular to the entrance D surface is redirected to an axis that is perpendicular to the entrance surface. ------------ * ^ -------- Order --I --- I--line (Please read the precautions on the back before filling this page) Intellectual Property of the Ministry of Economic Affairs Printed by the Bureau's Consumer Cooperatives-42 I This paper size applies to China National Standard (CNS) A4 (210 X 297 g)