TW200409941A - Refraction type single image display apparatus with telescopic elements - Google Patents

Abstract

A refraction type single image display apparatus with telescopic elements includes: a display units; two first refractive optical elements mounted on one side of the display units for deflecting light rays emanating from the display units; two reflective units located at the same side of the display units corresponding to the first refractive optical elements for deflecting light rays emanating from the first refractive optical elements, wherein the two first refractive optical elements are positioned between the two reflective units; two telescopic elements respectively mounted between the single refractive unit and the single reflective unit for altering the depth of view; two second refractive optical elements mounted on one side of the reflective units and each second refractive optical element being out of alignment between the reflective unit and the display unit for deflecting light rays passing through or being reflected from the reflective units; and two virtual image forming assemblies respectively mounted on the other side of the two refractive optical elements for deflecting light rays emanating from the refractive optical elements and transforming images formed by the refractive optical elements into virtual images; wherein the refractive optical elements are mounted between the reflective units and the virtual image forming assemblies; and the images displayed by the display units are refracted by the first refractive optical elements to form an inversed images as opposed to the original images for being reflected to the second refractive optical elements by the reflective units and passed through the second refractive optical elements in a deflected manner to form real images as positive to the original images, and then the real images are transformed into virtual images, being positive to the original images, by means of the virtual image forming assemblies.

Description

200409941 V. Description of the invention ([Technical Field to which Mao Ming belongs] The present invention & μ, t "Off a — a type of image display device, especially a type of image display device suitable for eyeglasses or head disk type. [II. Previous [Technology] Background of the present invention ^ In the past years, the progress of various audiovisual equipment and display devices has been changing rapidly. In addition to this strength, lightness, shortness, and portability have also become the king of displays. Among them, one of the emerging display devices is virtual. Virtual reality technology, through the integration of various technologies, such as display technology, electronic technology, sensory technology and sound technology, etc., to reduce the original large-scale audiovisual equipment between square inches, into a portable glasses type Projection display device. Although the general flat display has reduced weight, its size is limited by the weight and cost of the material, and cannot simultaneously enlarge the image size and is easy to carry. The current display can not meet the market pursuit of large Consumer demand for large-scale image display. Recently, many companies are rushing to see projection displays, especially Because of its small size, glasses-type displays can be combined with optical components, allowing users to achieve the effect of large-sized glory screens.-It is expected that glasses-type displays can save-the general display space and greatly reduced The weight of the display is equivalent to meet the needs of advanced audiovisual. However, although the current glasses-type projection display device is light, it is still too heavy to wear on the head. Moreover, the current image of the eye-type projection display device Depth of field is not unavoidable * Eight '弁 屋 生 & Image # Paper size is applicable to China National Standard (CNS) A4 (210x297 mm). --------- Order -------- _Line! (Please read the precautions on the back before filling out the blocks on this page) 200409941 A7 B7 V. Description of the invention (2) Although it can be identified, the quality of the image (such as depth of field) needs to be improved. The depth of field of the image is increased, That is, the quality of the displayed image can be improved. In the past, the glasses-type display was set up in front of the user's eyes with two small-sized Crt image tubes', which was enlarged by shortening the distance between the CRT and the eyes. Effect of size. However, this design is not practical for the heavy load on the user's head and strong radiation. The general glasses-type projection display device used recently is a flat display device. Its principle is shown in Figure 丨. It includes a liquid crystal display 110, a bidirectional beam splitter 120, a polarizing beam splitter 130, a projection lens 140, and two flat or concave mirrors 50 and 160. The image provided by the liquid crystal display 11 is passed through the The two mirror surfaces 15 and 160 reflect twice to project the image into the observer's eyes. However, the final image formed by this projection method is a real image. When used in close range, it will force the eye's water crystal to bend and compress the eyeball; Please refer to Figure 2a to 2e, which is a schematic diagram of the effect of the Buhler effect on the human eye. Just like many video recorders or cameras used by many people at the same time, when users try to focus while holding the camera while moving, they will find that the camera lens has been adjusting its focus forward and backward. This is because the camera must try to clarify which parts It is the subject you want to shoot, the distance of the subject from the camera, etc., so that you can focus properly and shoot a clear image. The human eye is just like the lens of a camera. It is necessary to quickly adjust the curvature of the lens and the length of the eye axis at any time to adapt to different distances. As shown in the figure, when the eye sees that the body image is a static real image 6, the eyeball 5 and the crystalline lens 51 remain in the shape of a positive reed, and then refer to FIG. 2b, when the real image 6 丨 and the eyeball 5 are at the same position. When the relative movement is in progress, the eyeball 5G1 must have the paper size week (cns) in order to grasp the correct image. (* ----- 1 (Please read the precautions on the back before filling in the columns on this page). --Order -------- line — 200409941 A7 B7 V. Explanation of the invention (3) Quickly adjust the length of the eye axis and the curvature of the crystalline lens 511, as shown in Figure 2 It becomes flat, and the axial length of the eyeball 5 〇2 becomes shorter to accommodate the curvature of the crystalline lens 5 1 2; or as shown in FIG. 2d, the curvature of the crystalline lens 5 1 3 becomes thicker and thicker, and the eyeball 5 〇 The axis length of 3 becomes longer to adapt to the curvature of the crystalline lens 5 1 3; Finally, as shown in Figure 2e, 'the crystalline lens 5 1 4 is adjusted to a correct curvature, and the eye axis is also adjusted to the state of 504. During the adjustment process Among them, because the object moves faster than the eyeball adjustment speed, there will be an afterimage 62, which is known The Doppler effect. In the process of quickly adjusting the focal length, a large amount of blood flowing through the microvasculature around the eyeball will cause pressure on the eyeball. The excessively high intraocular pressure caused by long and frequent focal length adjustment will not only cause The human eye feels uncomfortable, and in severe cases, there is a risk of retinal detachment. Therefore, if this real-image projection device is used in a glasses-type display device, the observation time (within a few hours) will be prolonged, which will cause the observer's intraocular pressure. Elevated, causing dizziness and discomfort, or even severe retinal detachment, so it is not suitable for young children or patients with heart disease or hypertension. If the magnification of the projected real image for eyeball imaging is to be increased, you need to The distance between the projection lens group and the eyeball is lengthened, so if you want to increase the image magnification, you need to increase the space occupied by the projection system, which is not practical in practice. In addition, a display device that projects a real image in the eye is used to When the user's head is moved by f, the image caused by ghosting and Doppler effect is blurred or severely shaken, so the display quality is poor. The application field is not wide. Because of this, a new display device is still needed in the city, which can effectively enlarge the image provided by Micro Song and maintain high resolution. Its imaging method will not be 200409941.

V. Description of the invention (4) Putting the eyeballs' will not cause the symptoms of elevated intraocular pressure even if used at close range and for a long time. Because of this, the inventor is based on the spirit of active invention. Although I think-a kind of solution that can solve the above problem: "Single-refraction imaging display device with line-of-sight compression group, the experiment will be completed until the completion of this project. [III. Summary of the invention] Summary of the invention The main purpose of the invention is to provide an image display device, which can effectively enlarge the image provided by the microdisplay, occupy a small space, maintain image resolution, and increase Depth of field of image, avoid stress on the eyeball, prolong the use time, low material cost, low power consumption, easy magnification adjustment, image brightness contrast, reduce Doppler and ghost effects, suitable for glasses-type display device. To achieve the above-mentioned object, an image display device of the present invention mainly includes a display unit; two first refraction mirror groups located on the side of the display unit to deflect light emitted by the display unit; two reflection units, It is located on the same side of the display unit with respect to the first refraction lens group, and is used to deflect the light emitted from the first refraction lens group, wherein the two A refraction lens group is located between the two reflection units; two-view focal length compression units are respectively located between a single first refraction unit and the single reflection unit on the side. A second refractive lens group is located on one side of the reflecting unit, but the first refractive lens group is not located on a straight line formed by the reflecting unit and the first refractive lens group, and is used to deflect and penetrate from the reflecting unit. Or reflected light; and national weaving ^ 110 > < 2 levels (please read the precautions on the back before filling in the columns on this page) V. Description of the invention (5) Two virtual image imaging exercises are respectively located at the other side of the: Yu Yu, deflected the light transmitted by the refractive lens group, and the virtual image imaging: formed by the lens group The image is converted into a virtual image; where the refractive mirror = between the child reflection unit and the virtual image imaging lens group; and the image system displayed by the display unit, i, is refracted by the first refractive lens group to form an interaction with the original image The image is then reflected by the reflection unit to the second fold group and penetrates the second fold The lens group is deflected to form a real image that is orthogonal to the original image, and then converted into a virtual image that is orthogonal to the original image by the virtual image imaging lens group. A display device described above can be applied to any image, picture, symbol and text display The use or equipment is preferably the information display device of television, computer, printer ^ no device, screen, information display device of transportation vehicle (vehiele), signal device, information display device of communication equipment (such as wireless mobile phone, telephone) , Telephone information display device, chat e-book, microdisplay, display of fishing equipment, personal digital assistant, virtual game machine, virtual flight training information display Display of devices, aircraft equipment and game eye masks. Since the present invention has a novel structure, can provide industrial use, and does have an increasing effect, it applies for an invention patent in accordance with the law. For a detailed description of the present invention, please refer to FIG. 3 and FIG. 4 first. These two figures are the intent of the difference between the real image and the virtual image of the eye. Figure 3 shows the real image 4 projected by the conventional projection system. In the case that the eye regards the real image, the eye must be properly focused so that

200409941 V. Description of the invention (6) The image can only be seen when the image is imaged on the retina. As mentioned above, the focusing process is carried out with strict eye recognition, but it is also regarded as a virtual image. In this case, when the second imaging: eyes, brother 260 is transparent, the real image 42 projected by the display unit (not shown in the figure) is formed after the imaging lens group-the false one, and because the human eye is clear, the burnt offering When the virtual image of the reflective surface, the eye material, adjust the focal surface of the reflective surface, when the human eye is watching the virtual image of the reflective surface, the eye does not need to adjust the focal length, but only needs to focus on the reflective surface. And if there is movement on the reflecting object or the image projected on the reflecting surface, the eye will focus on the reflecting surface only, that is, the eyeball does not need to adjust the focal length greatly because of the reflecting object or the image movement in the display. The image of an object or a moving image on the display is projected on the retina after passing through the lens in the eyeball. It can be recognized by several layers of the retina. It can make the eye clearly see the image or distinguish the movement of the image, but it does not need to follow the The image quickly adjusts the length of the eyeball to adapt to the movement of the image, so that the intraocular pressure will not rise. The distance between the virtual image of the non-transparent reflection surface in the eyeball can be roughly explained in Figs. 4b and 4c. Because the retina of the eyeball has a multi-layered structure, the eyeball can feel the distance of the image in a multi-layered structure. When the virtual image 44 enters the eyeball through a reflective surface 260, the eyeball will automatically adjust the relative image of the non-penetrating reflective surface passing through the lens to the retina, and the virtual 44 image formed by reflection on the reflective surface after passing through the eye lens Under the condition that the focus adjustment of the lens of the eyeball is fixed on the reflective surface, the imaging is performed on the multilayer structure of the retina, and the eye "senses" through the retina to the image 4 1 2 before the eyeball retina, that is, the image exists in the retina. In front of the upper reflection, it is between crystal and blood E; this paper size applies the Chinese National Standard (CNS) A4 specification (21 × 297 mm) 11 (Please read the precautions on the back before filling in the blocks on this page)

200409941 A7 B7 V. Description of the invention (7) Between the retinas, as shown in Figure 4b, after passing to the brain, the virtual image is seen before the reflective surface, but the focal length of the eyeballs has not changed. When the real image is located on the surface of the reflecting surface 260, the image 4 1 3 refracted by the crystalline lens will also fall on the surface of the retina. In combination with Figures 4b and 4c, you can explain the relative motion of the object or image. From the above description, it can be known that when the virtual image is moved, the eyeball does not need to adjust the focus, so there is no increase in intraocular pressure, image overlap or afterimage. The problem of the Keller effect is also an advantage of virtual image projection imaging. Please refer to FIG. 5, FIG. 6, and FIG. 7. These three figures are schematic diagrams of the refractive lens group used in the present invention compared with the conventional art. FIG. 5 is a conventional direct projection lens using a convex lens 170. Since the light path of the external light source 丨 80 is the same as the direction of the light path of the display unit 1900, the external light source will form the projected image. Strong interference; Figure 6 is a conventional projection system using concave 铳 1 7 1 reflection imaging. In this figure, the light path of the external light source 180 is the same as the light path of the image projected by the display unit 190, so it will also produce Strong interference; FIG. 7 is the use of refractive imaging in the present invention. In this figure, there is an angle between the convex lens (refractive imaging lens group) 172 and the display unit 19. When the external light source 180 is refracted by the convex lens 172, the optical path The light path of the image projected from the display unit 90 is not the same and will not interfere with each other, so it can form a good dark room effect and improve the contrast and sharpness of the image. The second refractive lens group of the image display device of the present invention is an image formed by the reflection from the reflection unit, and refracts to form an inverted real image, and then the real image passes through the virtual image imaging unit to form a virtual image. The second refractive lens group of the image display device of the present invention preferably has the function of condensing and enlarging the image at the same time, with # paper size Yan taa 12 (please read the precautions on the back before filling in this page) --- Order ---- line! 200409941 A7 --- ~ ____- B7 V. Description of the invention (8 ^ ~ '-Deflection of light transmitted or reflected from the second reflection unit to form a magnified real image inverted from the original image; and the virtual image imaging lens group Convert the inverted magnified real image formed by the second refractive lens group into an inverted virtual image, preferably an inverted magnified virtual image; according to the above requirements, the distance between the image reflected by the reflection unit and the second refractive lens group is preferably between the first The focal length of the birefringent lens group is between twice its focal length. The first-refractive mirror group of the invention's image display device can be a conventional f-optical lens group, preferably a triangular prism with partial reflection and transmission functions, or The two prisms are plated with a reflective film of 50% reflectance and 50% transmittance. The second refractive lens group is unlimited, and can be any conventional refractive lens group, preferably a condenser lens group, and more preferably a convex lens Or two single-convex lenses. The curvature of the two single-convex lenses may be the same or different, preferably the curvature of the two single-convex lenses is different. The incident light from the reflection unit of the image display device of the present invention and the second refractive lens group Incident surface The range of the line forming a cool angle ¥ is preferably greater than 0 degrees, less than 90 degrees, and more preferably between 0 degrees and 70 degrees. The first-refractive mirror group of the image display device of the image display 7F device of the present invention , Is used to change the direction of light travel or the light lost in the reflection part, so that the light can be completely entered into the reflection unit by the first-refraction mirror group; the type of reflection unit is unlimited, and it can be a conventional reflection optical lens group , Preferably a reflective film with a reflection function, or a reflective film plated with a 10 ()% reflectance on the triangular prism. The display unit of the image display device of the present invention may be a conventional display, preferably a micro-planar display *, Preferably lcd, ltpslcd, l_co. Display or DMD micro-display. The function of the virtual image imaging lens group of the present invention is to convert an object or real image into a virtual image, preferably a concave mirror, a concave lens or a plane mirror group; if it is a concave mirror or a concave lens, then Rotate the object or place it at its focal length and turn it into a paper size of 7 papers. (CiSiA4 Regulations-13 (Please read the precautions on the back before filling in the columns on this page). Install --------- Order- --- Line 丨 200409941 _ A7 ^ ____ B7__ Explanation 17 ^ '~~ ^ An inside a magnified upright virtual image is generated behind the mirror. If it is a flat mirror, it will be generated behind the mirror-upright contour high virtual image. Therefore, the ^ th refracting mirror of the image display device of the present invention The distance between the group and the virtual imaging lens group is preferably the second refraction " " and the distance between the formed real image and the virtual imaging lens group is smaller than the virtual image imaging = group AI focal length. The present invention further includes a light source for Provide light for the display unit. The present invention may optionally include i less one _ solid state> night crystal layer mask on one side of the virtual image imaging unit to control the entry of external light; or use earth) an adjustable mask, It is also placed on one side of the virtual image imaging unit, = to control the entry of external light. The light transmittance of the virtual image imaging unit of the present invention is unlimited, so that the external environment and the virtual image can be seen at the same time, preferably 5〇_ 70% tooth penetration and 30-50% reflection. The focal length compression unit used in the present invention may be a conventional focal length compression unit, preferably one or more focal length compression groups consisting of a concave lens and a convex lens. It should be noted that this visual It is necessary to include a -diffraction mirror group, which is located between the apparent focal length compression unit and the reflection unit to increase the half-brightness angle of the light emitted from the reflection unit. a The image display device of the present invention can be optionally combined with an auditory device to form an overall sound device. For example, the image display device of the present invention can be combined with a glasses-type outer cover and an inner cover and assembled with a headphone to form a complete glasses-type audiovisual equipment. The audiovisual equipment can be connected to other existing computers or virtual reality microprocessor devices to enhance functions, for example: as a computer display device, or connected to training machines (such as simulators, astronauts without gravity training) simulation training, or, Connect to video system for long-distance communication. The paper size is applicable to China National Standard (CNS) A4 specification (210X297 public director) --'------_ 14 installed --------- order ----- (Please read the notes on the back before filling in this page) ^! 200409941 A7 _---------- B7__ V. Description of the invention (10) '' ~~~-For letter, teaching, conference, monitoring The information for the driving vehicle is not as good as% i, or as a display device for a virtual game. [Fourth, the implementation mode] In order to allow the review committee to better understand the technical content of the present invention, The preferred specific embodiments are described below. Embodiment 1 Please refer to FIG. 8. FIG. 8 is a cross-sectional view of the interior of the glasses-type image display device of the present invention. This embodiment includes a T-shaped housing containing a B_ (: : 〇§Micro display 2 10, two light sources 2 1 1, two of which are coated with 50% reflectance reflective film Ling 1 brother 2 2 0 and 2 2 1 (first refractive lens group), two focal length compression group 280, two diffraction lens 290, two other prisms 230 and 231 (reflection unit), two non-equal curvature convex lens 240 and 241 (second refraction lens group), and two concave imaging areas 2 50 and 2 51 (virtual image imaging units) which are partially mirror-finished. Among them, two triangular prisms 220 and 220 are disposed on the same side of the micro display 2 10 221, and two prisms 230 and 231 are respectively provided with triangular prisms 2 3 0 and 2 3 1 on both sides, and the triangular prisms 2 2 0, 2 2 1 and 3 稜鏡 2 3 0, 2 3 1 are respectively disposed. There is a viewing focal length compression group 2 8 0, and a prism lens group 2 9 0 is further provided between the triangular prisms 2 3 0, 2 3 1 and the viewing focal length compression group 2 8 0. The micro display 2 1 0, the visual The focal length compression group and the triangular prisms 2 2 0 and 2 2 1 are both between the triangular prisms 2 3 0 and 2 3 1, and the straight line formed by the display 2 10 and the triangular prisms 220 and 221 and the triangular prism 2 2 0 , 2 2 1 and the triangular prism 2 3 0, 2 3 1 are formed in a straight line 15 ^ Paper China National Standard (CNS) A4 size (210X297 mm) (Please read the back first (Notes, please fill in each column on this page)

Install --------- Order -------- I 200409941 A7 B7 V. Description of Invention (11) Straight. Convex lenses 240 and 241 are disposed below the triangular prisms 230 and 231, respectively. Below the convex lenses 240 and 241 are virtual image imaging areas 250 and 251, respectively. The convex lenses 240 and 241 are arranged so that the incident light from the three lenses 230 and 231 and the normal of the incident surfaces of the convex lenses 240 and 241 form an angle γ of 30 degrees. Please refer to FIG. 9, which is a top view of the interior of the glasses-type image display device of the present invention. This figure shows that the prisms 2 2 0 and 2 2 1 with the Shao reflection function are set at a specific angle, so that the prisms 2 2 0 and 2 2 1 can accept the light emitted from the display 2 1 0 at just the right angle. Deflect it to the prisms 2 3 0 and 2 3 1, and a small part of the scattered light projected on the prisms 2 2 0 will be reflected by the prism 2 2 1 back to the prism 2 2 0 and continue to penetrate. After that, the half-brightness angle of the light is adjusted through the diffractive lens 290, so that the scattered light can be adjusted into parallel light; and then the focal length compression group 280 is used to generate the depth of field. Afterwards, the light penetrated to the three places 230 and 23 1. The image provided by this setting of the display device 2 1 0 is deflected via the prisms 2 2 0 and 2 2 1 'through the diffraction sheet 2 9 0 and the apparent focal length compression group 2 8 0 to the left and right sides. The third one is 2 3 0 and 2 3 1 places. After that, the separated image is reflected by the prisms 230 and 231 to the convex lenses 240 and 241, respectively, to form an inverted magnified real image, which will be described in detail below. Please refer to FIG. 10, which is a side view of the inside of the glasses-type image display device of the present invention. This figure shows that the triangular prism 2 3 0 will refract and refract the image provided by the display unit to the convex lens 2 40 0, which is the image 2 7 1, and the image 27 1 will fall on the focal length and double focal length of the convex lens 240. Somewhere between, and according to the principle of convex lens imaging, the double-focus paper size on the other side of the convex lens 24o applies the Chinese National Standard (CNS) A4 specification (210X297 male (please read the precautions on the back before filling in (Columns on this page) Install --------- Order -------- I. 200409941 A7 B7 V. Description of the invention (12) A distance from the image will form upside down with the image 2 7 1 The magnified real image with the same direction 2 7 2 (If there is a screen placed here, you can see an inverted magnified real image). The magnification of the real image 272 depends on the distance between the image 271 and the convex lens 240. The closer the distance, the higher the magnification. The real image 2 72 must fall within the focal length of the concave mirror 250. Similarly, according to the imaging principle, an enlarged virtual image 273 will be formed on the other side of the concave mirror 250, and the magnification of the virtual image 273 also depends on The distance between the real image 2 7 2 and the concave mirror 25 0. It should be noted that In this embodiment, there is no screen between the convex lens 240 and the concave mirror 250, and the magnified real image formed by the convex lens 240 cannot be seen; therefore, the phenomenon we see is that the light converges to the concave mirror 250 through the convex lens 240, and then The concave mirror 250 is projected into the observer's eyes, but the light cannot be focused on the eyeball into a real image. Therefore, the eye will extend the light to the concave mirror 250 to form an enlarged virtual image in the same direction as the real image 272. 3 familiar with this technology Those skilled in the art can recognize that in order to achieve the above-mentioned imaging design, the three prisms 230, the convex lens 240 and the concave mirror 250 must be in a special relative position so that the image 27 can fall between the focal length of the convex lens 24 and the double focal length. And the image 272 may fall within the focal length of the concave mirror 26. The above-mentioned < image display device may be selectively coupled with an auditory device, as shown in Fig. 11. The above-mentioned image display device 3 2 0 may Combined with a glasses-type outer cover 310 and an inner cover 340, and assembled with a headset 33, forming a complete glasses-type audiovisual equipment. The audiovisual equipment can be connected Such as virtual reality of the computer or microprocessor as the display device of the computer equipment set --------- ----- (Please read the notes on the back of this page and then fill in each field) parameters ·

200409941 V. Description of the invention (13 devices, or connected to a training machine (such as a simulator) for simulated training, or connected to a video system for long-distance communication, learning, conferences, monitoring, or as the shell of a 4-pass X-pass vehicle Information display and environment display, or as a display device for a virtual game. Embodiment 2 The structure of this embodiment is substantially the same as that described in the embodiment 丨 except that the hidden virtual image imaging unit 250 is replaced with a concave mirror by a flat mirror. The image is only refracted and enlarged once by the convex lens 240, and then converted into a virtual image by a flat mirror. The flat mirror has no magnification effect. However, the magnification and function of the image magnification constructed in this embodiment can still be completed by the convex lens 240 that refracts light. Embodiment 3 The structure of this embodiment is substantially the same as that described in Embodiment 1, except that the virtual image imaging unit 250 is replaced with a concave mirror by a concave lens; the imaging principle and magnification are the same as those described in the embodiment 丨 but replaced by a concave lens After that, the observer can simultaneously see the external environment when observing the image, and because the device of the present invention is The projection forms a virtual image. When a concave lens is used as the virtual image imaging unit, the light transmitted through the concave lens has a large refraction deflection angle. Therefore, people who stand in front of the user and have a line of sight slightly higher than the glasses-type display will not see it. The images and data that the user is using or receiving have good confidentiality and privacy, and will not interfere with other people around them. (Please read the precautions on the back before filling in the blocks on this page) Installation ------- -Order i • Line 200409941 A7 B7 V. Description of the Invention (14) Embodiment 4 The structure of this embodiment is substantially the same as that described in Embodiment 1, except that the virtual image imaging unit 250 is composed of a mirror and a concave lens. The imaging principle and magnification are the same as those described in the embodiment 1. The mirror can be swapped up and down ', so it can be decided according to the needs of the observer whether to observe the image only or to see the external environment at the same time. Embodiment 5 This implementation The structure of the example is roughly the same as that described in the first embodiment, but the difference is that the virtual image imaging unit 250 is a combination of a mask and a concave lens; the imaging principle and magnification are the same as in the embodiment 丨The mask can be swapped up and down, so it can be decided according to the needs of the observer whether to observe only the image or to see the external environment at the same time. Embodiment 6 Please refer to FIG. 12. The structure of this embodiment is substantially the same as that described in Embodiment 3. The only difference is that the solid-state liquid crystal layer mask 350 and the polarizing lens 36 are externally installed on the virtual image imaging unit 25. The imaging principle is as follows: the rate is the same as described in the embodiment. However, the semi-solid state The liquid crystal layer mask becomes transparent when it is energized ^, so that the external light can pass through. The user can receive the image while watching the crying image and monitor the surrounding environment. When the user turns off the liquid: the layer mask ^ power, the mask is restored Cover the light from the outside world, and receive information or images in order to be free from external disturbances, so you can determine whether it is transparent through the power (please read the precautions on the back before filling in the columns on this page). Install ------ --- Order ---- C! ^ Paper size applies + ¾¾¾ (CNS) A4 size 厘 centimeter) 19 200409941

V. Description of the invention (15) 2 = light state, used as-grating. Therefore, you can depend on whether you only observe the image or want to see the external environment at the same time. Because this embodiment _ uses a mirror as a virtual image imaging unit, the light transmission is higher than the user's external environment and strong light (for example, when the sun shoots the concave lens, its angle of deflection after the person shoots the lens, read "Sunlight Advance Because the angle of refraction behind the concave lens is large, it is not I ::: The heart's eyes, so this embodiment uses refraction to form a virtual image, "-V; the interference of the ambient light, which relatively strengthens the contrast of the image. It can be received at rewards. In the case of images or information, observe the dynamics of the external environment without affecting the image or information contrast situation. This image display device has a wide range of applications, such as those who are driving aircraft, boats, cars, locomotives, etc. Multiple tasks can be performed at the same time, and can be performed simultaneously. From the foregoing embodiments, it can be known that the imaging principle of the present invention is virtual image imaging. Wang Yaoxi uses—refraction lens group (convex lens) to form—upside-down magnification with the original image. Real image; then use a virtual image imaging unit (concave mirror, concave lens or plane mirror) to form a magnified virtual image inverted from the original image. This application virtual image imaging The glasses-type image display device based on the principle does not cause eye pressure. Even if it is used for a long time, there will be no dizziness in a few hours, which is a major breakthrough in the current glasses-type or burglar-type image display technology. The invention uses the formation of a virtual image in the eyeball, so when the user's head moves, the image blur caused by the Doppler effect and ghost effect is reduced. In addition, the invention uses refracted light to form a virtual image in the user's eyeball, Zoom in (please read the precautions on the back before filling in the columns on this page) Install ----- Order --------- Line! Λ QL:

200409941 V. Description of the invention (16 To adjust the lens of the virtual imaging imaging group, or the second refractive lens group (for example, ρ 'Ό huge distance' angle or even curvature 'can be completed, the adjustment method = interval two: the space is small. Compared to this Traditionally, a projection display device that forms a real image on the user's eye and takes up a lot of space has the relative advantage of being flexible. Furthermore, since the present invention uses refracted light to form a virtual image on the user's eyeball, the opposite of imaging ^ The image is large and less affected by ambient light, compared to the traditional shape: the image is consistent; the projection display device of the user's eyeball has better image quality. When ^ = is used, it is refracted to the surrounding non-users due to the image system The large angle of refraction of the imaging environment in the imaging environment group of the virtual image does not affect the other users around the eye, and the interference is relatively low. In addition, the invention uses a visual focus compression group to increase the depth of field of the image. In addition, a diffractive lens group is set before the viewing focal length compression group is set, so that the light rays originally emitted can be concentrated into parallel rays, which can increase the brightness', and ^ = can be reduced Reduce the phenomenon of low image reflection caused by scattered light interference. Once again, because of the image display device of the present invention, using only the _micro display 呑, the image can be transmitted to the left and right eyes separately, which is in contrast to the traditional In the technology, one or two displays must be compared with 'the image display device of the present invention is lighter in weight, smaller in size, and has a substantial cost saving. Moreover, the micro-image provided by the micro-display' is an over-k virtual image imaging unit. (Concave mirror, concave lens or flat mirror) and convex lens), the relative curvature can be achieved in front of the user's eyes; magnification to the effect of dozens of labor, but the various optical elements used by it have light weight and volume Small advantages, low material cost, and consumes 21 200409941 V. Description of the invention (17

It uses small power, is easy to carry, has great flexibility in use, and can reduce production costs. It is quite in line with market demand. Features, & the "monolithic birefringent imaging display device" is greatly broken, I urge your reviewing committee to make a clear observation, grant a quasi-patent at an early date, and benefit the society. However, it should be noted that the above-mentioned many examples are merely examples for the convenience of description. The scope of the rights claimed in the present invention should be based on the scope of the patent application, and not limited to the above-mentioned embodiments. [V. Brief Description of Drawings] Figure 1 is a conventional image projection display device. Figures 2a, 2b, 2c, 2d, and 2e are schematic diagrams of the Doppler effect of human eyes. FIG. 3 is a schematic diagram of a human eye viewing a real image. 4a, 4b, and 4c are schematic diagrams of human eyes viewing virtual images. FIG. 5 is a schematic diagram of a conventional magnifying projection using a convex lens. FIG. 6 is a schematic diagram of conventional projection reflection by a concave mirror. FIG. 7 is a schematic diagram of a refraction projection of the present invention. FIG. 8 is a cross-sectional view of the inside of a glasses-type image display device according to the present invention. FIG. 9 is a top view of the inside of the glasses-type image display device of the present invention. Fig. 10 is a side view and a virtual image forming principle inside the glasses-type image display device of the present invention. FIG. 11 is a schematic combination view of the glasses-type image display device of the present invention. FIG. 12 is another schematic combination view of the glasses-type image display device of the present invention. This paper size applies to Chinese National Standard (CNS) A4 specifications (210X297 mm) 22 (Please read the precautions on the back before filling in the blocks on this page) Loading --------- Order i Luxury · 200409941 A7 B7 V. Description of the invention (18) [VI. Illustration of drawing number] 110 LCD TF display 210 L-COS micro display 310 Housing 120 Two-way beam splitter 211 Light source 320 Image display device 130 Polarized beam splitter 220 Triangular prism 330 Headphone 140 Projection lens 221 Triangular prism 340 Inner cover 150 Face lens 230 Triangular prism 350 Semi-solid liquid crystal mask 160 Face lens 231 Triangular lens 360 Polarized lens 170 Convex lens 240 Convex lens 5 Eyeball 171 Concave lens 241 Convex lens 501 Eyeball 172 Convex lens 250 Concave mirror 502 Eyeball 180 External light source 251 Concave mirror 503 Eyeball 190 Display Unit 260 Concave lens 504 Eyeball 4 Real image 270 Image 51 Crystal lens 41 Image 271 Image 511 Crystal lens 412 Image 272 Image 512 Crystal lens 413 Image 273 Image 513 Crystal lens 42 Real image 280 Focal length compression group 514 Crystal lens 43 Virtual image 290 Diffraction lens 6 Real image 44 Virtual image 61 Real image 62 Afterimages 63 Afterimage 64 Real image 23 (Please read the precautions on the back before filling in the blocks on this page) Loading --------- Order ----%. This paper size applies to China National Standard (CNS) A4 specifications (210X297 mm)

Claims (1)

200409941 A8 B8 C8 D8 VI. Patent application scope 1 · An image display device mainly includes: a display unit; side for deflection ^ i (Please read the precautions on the back before filling in the columns on this page) The refraction mirror group is located in the display unit, and the light emitted by the end-members of the early unit is not reflected early, and is relatively the same as the first refraction mirror group in the display unit. The light emitted by the first refractive lens group, among which the two first refractive lens groups are located between the two reflection units, and the two-view focal length compression unit 71 is respectively located between the single-first-refraction unit and the unitary reflection unit. , To change the depth of field of light;, the second refracting mirror group is located on one side of the reflecting unit, but the second refracting lens group is not located on the straight line of the reflecting unit and the first refractive lens group Z, Deflection of the light transmitted or reflected from the reflecting unit respectively; and two virtual image imaging lens groups are respectively located on the other side of the birefringent lens group to deflect the light transmitted from the refractive lens group, and the Virtual imaging mirror Converting the image into a set of refractor formed of the virtual image, - wherein the refractor child group located between the reflecting unit and the virtual image forming lens group; and the line! / 4 The image displayed by the 7F unit is refracted by the first refraction lens group to form an image inverted from the original image, and then reflected by the reflection unit to the second refraction lens group and penetrates the second The refraction lens group is deflected to form a real image of the original M image, and then the virtual image imaging lens group is used to convert the image into a virtual image that is orthogonal to the original image. 2 · The image display device as described in item 1 of the patent application scope, wherein the second refractive lens group has the function of condensing and enlarging the image at the same time so as to be biased 24 200409941 A8 B8 C8 6. Apply for a patent — 1 — ~ ~ S Fold the light penetrating or reflecting from the reflection unit to form an enlarged real image; and the virtual image imaging lens group converts the real image formed by the refractive lens group into a virtual image. 3. The image display device according to item 1 of the scope of patent application, wherein the first refractive lens group and the second refractive lens group are a condenser lens group. 4. The image display device according to item 1 of the scope of patent application, wherein the incident light of the self-reflecting unit and the normal of the incident surface of the second refractive lens group form an included angle Y; and the included angle γ is greater than 0 degrees and smaller than 9 〇 度。 0 degrees. 5. The image display device according to item 1 of the scope of patent application, wherein each first refractive lens group is two single-convex lenses, and the two single-convex lenses are different. 6. The image display device according to item 1 of the scope of patent application, wherein each first refractive lens group is two single-convex lenses, and the curvatures of the two single-convex lenses are different. 7 · The image display device according to item 1 of the scope of the patent application, wherein the second refractive lens group is a convex lens for deflecting the light of the reflecting unit and simultaneously magnifying the image penetrating the second refractive lens group . 8. The image display device described in item 丨 of the patent application scope, wherein the second refractive lens group is a convex lens for deflecting the light of the reflecting unit and simultaneously magnifying the image penetrating the second refractive lens group . 9 The image display device according to item 1 of the scope of patent application, wherein the display unit is a flat micro-display. 10. The image display device described in item 1 of the scope of patent application, wherein the display unit is an LCD, L-COS microdisplay or DMD microdisplay. 0 ------ 25 5 Puben paper standards are applicable to Chinese national standards ( CNS) A4 specifications (210X297 ^ $ --------- (please read, the notes on the back, and then fill in the columns on this page). 1_1 · ϋ _1ϋ n ^ 1--i ^ i in i— ^ ^ 1 in I 200409941 Patent application scope 11. The image display device described in item 1 of the patent application scope, in which the Wendi refracting mirror unit is a three-pointer with partial reflection and partial penetration functions. The image display device described in the first item of the scope, wherein the reflection unit is a triangular prism with a reflection function. 13. The image display device described in the first item of the patent application scope, wherein the virtual image imaging mirror group is a concave mirror group or a concave lens 14. The image display device according to item 1 of the scope of patent application, wherein the virtual image imaging lens group is a flat mirror group. 15. The image display device according to item 1 of the scope of patent application, wherein Real image formed by the refraction lens group and imaging of the virtual image The distance between the groups is smaller than the focal distance of the virtual image imaging lens group. 16. The image display device according to item 4 of the scope of patent application, wherein the angle between the second refractive lens group and the display unit is between 0 degrees and 70 degrees 17. The image display device as described in item 1 of the scope of patent application, wherein the distance between the image reflected by the child reflection unit and the second refractive lens group is between the focal length of the second refractive lens group and its double focal length. 18. The image display device described in item 1 of the patent application scope, further comprising at least one light source for providing light to the display unit. 19. The image display device described in item 1 of the patent application scope, It also contains at least half of the solid-state liquid crystal layer masked on the _ side of the virtual image imaging unit to control the entry of external light. 26 Sgi This paper size applies to China National Standard (CNS) A4 (210X297 mm) (please read the back first) (Please pay attention to the items on this page before filling in each block) Install --------- Order ---- 200409941 0 ^ 8 8 8 ABCD κ, patent application scope 20 · Image as described in item 1 of patent application scope Display device, more It includes at least one adjustable mask on one side of the virtual image imaging unit to control the entrance of external light. 2 1. The image display device according to item 1 of the scope of patent application, further comprising a diffractive lens group, the The diffractive lens group is located between the refractive lens group and the virtual image imaging lens group, and is used to improve the half-brightness angle of the light emitted from the reflection unit. 2 2 · The image display device as described in the first item of the scope of patent application It is used as a Goggle type display device or a head mount display device. Pack. 1 (Please read the notes on the back before filling in the columns on this page) Line — 27 .-; This paper size applies to China National Standard (CNS) A4 (210X297 mm)