580587 A7 _____________Β7 五、發明説明（1 ) 【一、發明所述之技術領域】 本發明係關於一種影像顯示裝置，尤指一種適用於眼 鏡型或頭盔型之影像顯示裝置。 【二、先前技術】 近年來，各種視聽設備與顯示裝置之進步日新月異， 除了功能加強之外，輕薄短小、方便攜帶亦為顯示器發展 之主流；其中一種新興的顯示裝置便為虛擬實境（Virtue reality)技術，藉由各種科技的整合，如顯示器科技、電 腦科技、感官科技與音效科技等，將原本大尺寸的視聽設 備縮小於方寸之間，成為可攜帶式眼鏡型投影顯示裝置。 而一般之平面顯示器雖然重量減輕，但是其尺寸受限於材 料重量以及成本，並無法做到同時放大影像尺寸並容易攜 帶之功效。是以目前之顯示器並無法符合市場追求大尺寸 影像顯示之消費需求。近來，諸多業者競相看好投影之顯 不器，尤其是眼鏡型顯示器，因為其體積小，卻可以利用 光學7L件之組合，讓使用者可以達到大尺寸螢幕之觀賞效 果。一般預料眼鏡型之顯示器可以節省一般顯示器之佔用 空間以及大幅減低達到同等效果顯示器之重量，滿足高級 視聽之需求。然而目前之眼鏡型投影顯示裝置雖然重量較 輕’但是配戴於頭上仍然過於沈重。 而且’目前一般傳統之眼鏡型投影顯示裝置之影像景 木並不大，其產生之影像雖可以辨識，但是影像之品質 (例如景深）尚待提昇。影像景深之加大，即可以提高顯示 國家標：?7^s) Α4^ΓΰΤ〇χ297·----~-~ (請先閲讀背面之注意事項再填寫本頁各欄) 裝---------訂--------線— . 五、發明説明（2 ) 影像之品f °往昔之眼鏡型顯示器係以兩個小尺寸CRT映 像管架設輕用者之眼前，藉由縮短CRT與眼睛之距離達 到放大尺寸之效果。但是此種設計對於使用者頭部之重量 負荷大，JL輻射線強，並不f用。爾近習用之—般眼鏡型 投影顯示裝置採用平面顯示裝置，其原理如圖i所示，包 含一液晶顯示器110、一雙向分光器120、-偏光光束分 離器130、一投影鏡頭14〇以及二平面鏡或凹面鏡丨5()、 160。該液晶顯示器11〇所提供之影像經由該二鏡面ι5〇 與160進行兩次反射，將影像投射於觀測者眼中。但此種 投射方式所形成的最終影像為實像，使用時因為近距離觀 測’會&迫眼睛之水晶體彎曲而壓迫眼球；請接著參見圖 2a土 2e’此係習知之都卜勒效應於人眼作用之示意圖。正 如同時下許多人所使用的錄影機或照相機一般，當使用者 手持照相機在移動中嘗試對焦時，會發現照相機的鏡頭一 $在前後調整其焦距，這是因為照相機必須嘗試去釐清究 =哪些邵分是所欲拍攝的主體、該主體距離相機的距離等 寺，才能正確地調焦而才白出清Μ的影像。人類的眼晴正如 相機的鏡頭一般，必須隨時快速地調整水晶體的曲率、眼 軸的長短以適應不同距離的景物。如圖2a所示，當眼睛所 見物體影像為靜止之實像6時，眼球5與水晶體51維持在 正常的狀態；接著請參見圖2b，當實像61與眼球5〇1處在 一相對移動中時，眼球501為了抓住正確的影像因此必須 快速調整眼軸的長度以及水晶體511的曲率，如在圖。中' 水晶體512曲率變小而變得較為扁平，並且眼球5〇2之眼 軸長為了適應水晶體512之曲率而變短；或者如_中水 晶體5丨3之曲率變大而變得較為厚圓，並且眼球5〇3之軸 長為了適應水晶體513之曲率而變長；最後，如圖。所 示，水晶體5!4調整到一正確之曲率，眼軸也隨之調整到 5 〇4的狀態。在調整的過程當中由於物體移動的速度高於 於眼球調整的速度，因此會有殘像62的產生，亦即$知的 都卜勒效應。並且，在快速調整焦距的過程中，眼球周圍 的微血管大量流通血液會給眼球造成壓力，長時間、頻繁 地調整焦距之下所造成的眼壓過高不僅會對人眼形成不舒 適的感覺，嚴重者更恐有視網膜剥離之虞！因此該種實像 投影裝置若應用於眼鏡型顯示裝置中，觀測時間（數小時 内）拉長時結果會造成觀測者眼壓升高，而產生暈眩不適 的症狀，甚至嚴重者導致視網膜_，所以不適合幼小孩 童或患有心、臟病或高血壓病患使用。而投射實像於眼球成 像，其放大倍數若欲提升，則需要拉長投射鏡組與眼球之 距離’如此;^加大影像放大倍率，則需要加大投影系統 所佔用之空間，於實際上並不實用。 …另外，該形成投影實像於眼中之顯示裝置，於使用者 颈部私動時’會產生因為鬼影以及杜卜勒效應引起之影像 模糊或嚴重晃動，所以顯示品質不佳，應用領域不廣。因 此目幻市場上仍而要一種新的顯示裝置，可有效放大微 顯示器所提供之影像，並維持高解析度，其成像方法不會 壓k眼球’即使近距離、長時間使用亦不會造成眼壓升高 的症狀。 580587 A7 -------- --- 五、發明説明（4 ) '----- …發明人爰因於此，本於積極發明之精神，亟思一種可 以解決上述問題之「具視焦距壓縮組之雙體折射影像顧示 裝置」，幾經研究實，驗終至完成此項嘉惠世人之發明。、 【三、發明内容】 本發明之概述 本發明<王要目的係在提供一種影像顯示裝置，俾能 有效放大微顯示器所提供之影像，佔用空間小，維持影像 解析度.，加大影像景深，避免壓迫眼球，延長使用時間， 材料j本低，電力消耗低，放大倍率調整容易，影像亮度 對比雨，減少杜卜勒及鬼影效應，適合作為眼鏡型或頭蠢 型顯示裝置。 為達成上述之目的，本發明「具視焦距壓縮組之雙體 折射影像顯示裝置」主要包括：二顯示單元；二反射單 元，位於該顯示單元之一側，用以偏折自該顯示單元射出 之光線，且其中蔹二顯示單元位於該二反射單元之間；二 視焦距壓縮單元，分別位於該單一顯示單元與該單一反射 單元之間，以改變光之景深；二折射鏡組，位於該反射單 元之一側，但該折射鏡組不位於該反射單元及詨顯示單元 形成之直線，用以分別偏折自該反射單元穿透或反射之光 線；以及二虛像成像鏡組，係分別位於該二折射鏡組之另 一側，以偏折由該折射鏡組所傳來之光線，且該虚像成像 鏡組將該折射鏡組所形成之影像轉換成虛像；其中，該折 射1¾組位於该反射單元與該虛像成像鏡組之間；且該示 本紙張尺度適用中國國家標準（CNS) A4l^TilOX297公爱） 9 (請先閱讀背面之注意事項再填寫本頁各欄) 裝 ----訂---- 線丨 580587 A7 B7 五、發明説明（5 ) 單儿所顯不之影像，係穿透該視焦距壓縮單元，行進至該 反射單元’再偏折至該折射鏡組，並穿透該折射鏡組偏折 形成與原影像倒立之實像，再經由該虛像成像鏡組轉換 成與原影像倒立之虛像。 、上述之顯示裝置可應用於任何影像、圖片、符號及文 丰〜、示之用途或设備，較佳為電視、電腦、印表機之資訊 ^、示裝置、螢幕、運輸載具（vehicle)之資訊顯示裝置、 信號機器、通訊設備（例如無線手機，電話）之資訊顯示 裝置、電話之資訊顯示裝置、交談式電子書、微顯示器 ( 〇 display)、釣魚（fishing)設備之顯示、個人數位 助理（personal digital assistant )、虛擬遊戲機 (game )、虛擬飛行訓練之資訊顯示裝置、飛機 (airplane)設備之顯示及遊戲眼罩之顯示等。 、由於本發明構造新穎，能提供產業上利用，且確有增 進功效，故依法申請發明專利。 本發明之詳細説明 請先參見圖3及圖4,此二圖為眼晴成像之實像、虛像 差別示意圖。圖3為習知之投影系統所投射為實像狀 況’在眼睛所視為實像的情況下，眼晴必須正確調焦以使 影像成像在視網膜上，才能「看見」影像41，而如前段所 述，調焦的過程會帶給眼睛壓力。圖钧至乜為本發明眼睛 所視為虛像的情況。在此情況下，當該成像鏡.組（凹面 ---------------裝·」 (請先閱讀背面之注意事項再填寫本頁各欄) ------訂--------線. 五、發明説明（6 ) =26〇為透明時，顯示單元（圖中未示）所投射之實像 成像鏡組26G之後形成-虛像43，而由於人眼卜 相察反射面，虛像時，眼球係調整其焦點於該反射面： 疋以人眼晴於觀看反射面之虛像時，眼晴無須另外調整焦 、巨僅而要對焦於反射面〇而反射之物體或顯示器中投射 於反射面（影像若有運動時，因為眼睛所對焦者僅為反射 面一亦即眼球興須因為反射之物體或顯示器中影像運動而 大幅調整焦距，只要反射之物體影像或顯示器中運動之影 像，於經過眼球中水晶體後投射於視網膜上之成像，可以 為數層視網膜所辨識之景深，即可以讓眼睛清楚地看見影 像或分辨影像之運動，但是不必隨著影像快速地調整眼球 之長短以適應影像之運動，是以眼壓不會升高。 而眼球内感覺非透明反射面虛像之遠近，約略可以圖 4b及4c來説明。因為眼球之視網膜為多層之結構，眼球 可以以多層結構來感覺影像之遠近。當虛像以經一反射面 260進入眼球時，眼球會自動調整使非穿透反射面穿過水 日口 之相對成像於視網膜，而該反射面上經反射形成之虛 44像，於經過眼球水晶體後，會在眼球水晶體焦距調整固 定於反射面之情形下，於視網膜多層結構上成像，眼睛透 過視網膜「感覺」到影像4 1 2落於眼球視網膜之前，亦即 「感覺」該影像存在於視網膜上反射面前，介於水晶體與 视網膜之間，如圖4b所示，再傳至腦部後，看到該虚像於 該反射面之前，但是眼球之焦距並無改變。而當實像係位 於反射面260之表面，經水晶體折射後之影像413也將落 11 本紙張尺度適用中國國家標準（CNS) A4規格（210X297公釐） 580587 釐） 12580587 A7 _____________B7 V. Description of the Invention (1) [I. Technical Field of the Invention] The present invention relates to an image display device, especially an image display device suitable for eyeglasses or helmets. [II. Prior Technology] In recent years, various audiovisual equipment and display devices have made rapid progress. In addition to enhanced functions, thinness, lightness, shortness, and portability have become the mainstream of display development. One of the emerging display devices is virtual reality. Reality) technology, through the integration of various technologies, such as display technology, computer technology, sensory technology and sound technology, etc., reduce the original large-sized audiovisual equipment between square inches, and become a portable glasses-type projection display device. Although the weight of a general flat panel display is reduced, its size is limited by the weight of the material and the cost. It cannot achieve the effect of simultaneously enlarging the image size and easily carrying it. Therefore, the current display cannot meet the market demand for large-size image display. Recently, many industry players are optimistic about projection displays, especially glasses-type displays. Because of their small size, they can use a combination of optical 7L pieces to allow users to achieve the viewing effect of large screens. It is generally expected that the glasses-type display can save the space occupied by the general display and greatly reduce the weight of the display with the same effect to meet the needs of advanced audiovisual. However, although the current glasses-type projection display device is relatively lightweight, it is still too heavy to be worn on the head. And ‘the current traditional traditional glasses-type projection display device ’s image scene is not large. Although the image produced can be identified, the image quality (such as depth of field) needs to be improved. Increasing the depth of field of the image can increase the display national standard:? 7 ^ s) Α4 ^ ΓΰΤ〇χ297 · ---- ~-~ (Please read the precautions on the back before filling in the columns on this page) Install --- ------ Order -------- Line——. V. Description of the invention (2) The quality of the image f ° The glasses-type display of the past is set up in front of the light user with two small-sized CRT image tubes. , By reducing the distance between the CRT and the eyes to achieve the effect of enlarged size. However, this design has a large load on the user's head and strong JL radiation, so it is not useful. I ’m familiar with it—the general glasses-type projection display device uses a flat display device. Its principle is shown in Figure i. It includes a liquid crystal display 110, a two-way beam splitter 120, a polarized beam splitter 130, a projection lens 14 and two. Plane or concave mirror 5 (), 160. The image provided by the liquid crystal display 11 is reflected twice through the two mirror surfaces ι50 and 160, and the image is projected into the observer's eyes. However, the final image formed by this projection method is a real image. When used in close observation, the lens will be pressed because the lens will bend and the eye will be bent; please see Figure 2a to 2e. Schematic diagram of eye effects. Just like many video recorders or cameras used by many people at the same time, when a user holds the camera and tries to focus while moving, he will find that the camera lens adjusts its focus in front and back. This is because the camera must try to clarify what = Shao Fen is the main subject to be shot, the distance from the subject to the camera, and so on. Only in this way can he correctly focus the image and reveal the clear image. Human eyes are just like the lens of a camera. You must quickly adjust the curvature of the lens and the length of the eye axis to adapt to scenes at different distances. As shown in FIG. 2a, when the image of the object seen by the eye is a static real image 6, the eyeball 5 and the crystalline lens 51 are maintained in a normal state; then refer to FIG. 2b, when the real image 61 and the eyeball 501 are in a relative movement. In order to grasp the correct image, the eyeball 501 must quickly adjust the length of the eye axis and the curvature of the lens 511, as shown in the figure. Medium 'crystal 512 has a smaller curvature and becomes flatter, and the axial length of the eyeball 502 has been shortened to accommodate the curvature of the crystal 512; or, for example, the curvature of the water crystal 5 丨 3 has become larger and thicker. And the axial length of the eyeball 503 becomes longer in order to adapt to the curvature of the crystalline lens 513; finally, as shown in the figure. As shown, the crystalline lens 5! 4 is adjusted to a correct curvature, and the eye axis is also adjusted to the state of 504. During the adjustment process, since the object moves faster than the eyeball adjustment speed, there will be an afterimage 62, which is known as the Doppler effect. In addition, in the process of rapid focus adjustment, a large amount of blood flowing through the microvessels around the eyeball will cause pressure on the eyeball. Too high intraocular pressure caused by long and frequent adjustment of the focal length will not only cause discomfort to the human eye, In severe cases, there is a risk of retinal detachment! Therefore, if this real image projection device is applied to a glasses-type display device, the observation time (within a few hours) will be prolonged, which will cause the observer's intraocular pressure to rise, which will cause symptoms of dizziness and discomfort, and even severe cases will cause the retina. So it is not suitable for young children or patients with heart, viscera or hypertension. For projecting real images for eyeball imaging, if the magnification is to be increased, the distance between the projection lens group and the eyeball needs to be extended. 'So to increase the image magnification, you need to increase the space occupied by the projection system. Not practical. … In addition, the display device that forms a projected real image in the eyes, when the user's neck moves privately, will cause blurred or severely shaken images due to ghost images and Doppler effects, so the display quality is poor and the application field is not wide . Therefore, a new display device is still needed in the magic market, which can effectively enlarge the image provided by the micro display and maintain high resolution. Its imaging method will not press the eyeballs, even if it is used at short distances and for a long time. Symptoms of increased intraocular pressure. 580587 A7 -------- --- V. Description of the invention (4) '-----… Because of this, the inventor, in the spirit of active invention, urgently thinks of a kind of solution to the above problems. "A two-body refracted image display device with apparent focal length compression group", after several researches, the test was finally completed to the benefit of the world's invention. [3. Summary of the invention] Summary of the present invention The main purpose of the present invention is to provide an image display device that can effectively enlarge the image provided by the microdisplay, occupy a small space and maintain the image resolution. Increase the image Depth of field, avoid stress on the eyes, prolong the use time, low material cost, low power consumption, easy magnification adjustment, image brightness contrast rain, reduce Doppler and ghost effects, suitable for glasses or head-type display devices. In order to achieve the above-mentioned object, the "two-body refracting image display device with visual focal length compression group" of the present invention mainly includes: two display units; two reflection units, which are located on one side of the display unit, and are used to deflect the light emitted from the display unit. Light, and the second display unit is located between the two reflection units; the two-view focal length compression unit is respectively located between the single display unit and the single reflection unit to change the depth of field of light; the birefringent mirror group is located on the reflection One side of the unit, but the refraction lens group is not located on a straight line formed by the reflection unit and the display unit, and is used to deflect the light transmitted or reflected from the reflection unit respectively; and two virtual image imaging mirror groups are respectively located at the On the other side of the birefringent lens group, the light transmitted by the refracting lens group is deflected, and the virtual image imaging lens group converts the image formed by the refracting lens group into a virtual image; wherein the refractive group 1¾ is located in the Between the reflection unit and the virtual imaging lens group; and the paper size shown in this paper applies the Chinese National Standard (CNS) A4l ^ TilOX297 public love) 9 (Please read the note on the back first (Fill in the fields on this page again.) Binding-ordering-line 580587 A7 B7 V. Description of the invention (5) The image displayed by a single child penetrates the focal length compression unit and proceeds to the The reflection unit is deflected to the refraction lens group and penetrates the refraction lens group to form a real image inverted with the original image, and then is converted into a virtual image inverted with the original image through the virtual image imaging lens group. The above display device can be applied to any image, picture, symbol and Wenfeng ~, display application or equipment, preferably information of TV, computer, printer ^, display device, screen, transportation vehicle (vehicle ) Information display device, signal equipment, information display device of communication equipment (such as wireless mobile phones, telephones), telephone information display device, chat e-books, micro display (〇display), fishing (fishing) device display, personal Digital assistant (personal digital assistant), virtual game machine (game), information display device for virtual flight training, display of airplane equipment, display of game eye mask, etc. Since the present invention has a novel structure, can provide industrial use, and has an added effect, it has applied for an invention patent in accordance with the law. Detailed description of the present invention Please refer to FIG. 3 and FIG. 4 first, which are schematic diagrams of the difference between the real image and the virtual image of clear eye imaging. Figure 3 shows a real image projected by a conventional projection system. In the case of the eyes as a real image, the eye must be properly focused so that the image is imaged on the retina in order to "see" the image 41. As described in the previous paragraph, Focusing can cause stress on the eyes. Figures Jun to Xun are the virtual images seen by the eyes of the present invention. In this case, when the imaging lens. Group (concave --------------- installed · "(Please read the precautions on the back before filling in the columns on this page) ---- -Order -------- line. V. Description of the invention (6) = 26 ° When it is transparent, the real image imaging lens group 26G projected by the display unit (not shown in the figure) is formed after the virtual image 43-and Because the human eye looks at the reflective surface, when the virtual image is used, the eyeball adjusts its focus on the reflective surface: 疋 When the human eye is clear when viewing the virtual image of the reflective surface, the eye clear does not need to adjust the focus and focus, but only focuses on the reflective surface. 〇Reflected objects or monitors are projected on reflective surfaces (if there is motion in the image, because the person focusing on the eyes is only the reflective surface, that is, the eyeball must adjust the focal length significantly because of the reflected objects or image movement in the display, as long as the reflection The image of an object or a moving image on the monitor is projected on the retina after passing through the lens in the eyeball. It can be recognized by several layers of the retina, which can make the eye clearly see the image or distinguish the movement of the image. The image quickly adjusts the length of the eyeball to fit The movement of the image is that the intraocular pressure does not increase. The distance between the virtual image of the non-transparent reflection surface in the eyeball can be roughly explained in Figures 4b and 4c. Because the retina of the eyeball has a multilayer structure, the eyeball can be felt with a multilayer structure The distance of the image. When the virtual image enters the eyeball through a reflective surface 260, the eyeball will automatically adjust the relative image of the non-penetrating reflective surface through the Shuiri mouth to the retina, and the virtual 44 image formed by reflection on the reflective surface, After passing through the lens of the eyeball, it will be imaged on the multilayer structure of the retina with the focus adjustment of the lens of the eyeball fixed on the reflecting surface. The eye "feels" through the retina to the image 4 1 2 before the eyeball retina, which means "feel" the The image exists in front of the reflection on the retina, between the lens and the retina, as shown in Figure 4b, and after it is transmitted to the brain, the virtual image is seen before the reflection surface, but the focal length of the eyeball has not changed. The real image is located on the surface of the reflective surface 260, and the image 413 refracted by the crystalline lens will also fall. The paper size is in accordance with the Chinese National Standard (CNS) A4 specification (2 10X297 mm) 580587 cm) 12
* !- 广請先閱讀背面之注意事項再填寫本頁各襴} • n n I A7 ------ 五、發明説明（7 ) 於視網膜之表面。而結合圖心及計可以説明物體或影像 及使有相對運動，由以上之説明可以知道、虛像運動時， 眼球不需要調整焦距，因此沒有眼壓增高、影像重疊或殘 像的都卜勒效應之問題，此也為虚像投影成像之優點。 接著請參見圖5、圖6及圖7，此三圖為本發明中所使 用之折射鏡組相較於習知技藝之示意圖。圖5係習知使用 凸透叙1 7 0直接投射者，由於外來光源1 $ 〇之光徑與顯示 單7G190所欲投射成像之光徑方向相同，因此外來光源將 a對所投心之影像形成強烈干擾；圖6則為習知使用凹面 叙1 7 1反射成像之投影系統，在此圖中外來光源1 $ 〇之光 徑與顯π單元190所投射影像之光徑亦相同，因此也會產 生強烈干擾；圖7則為本發明利用折射成像，在本圖中該 凸透鏡（折射成像鏡組）172與顯示單元19〇之間有一夾 角存在，當外來光源180經凸透鏡172之折射後之光徑與 入顯示單元190所投射影像之光徑並不相同，不會互相干 擾，因此能夠形成良好之暗房效果，提高影像之對比以及 清晰度。 本發明影像顯示裝置之折射鏡組係將由反射單元反射 形成《影像，折射形成一倒立之實像，之後該實像會再經 二虛：：像：元形成虛像。本發明影像顯示裝置之折射鏡 =具聚光及放大影像之功能，以分別偏折自該 早：牙Γ反射之光線’形成—與原影像倒立之放大 :、:Γ=:ί成像鏡組將該折射單元折射鏡組所形成之 倒互放大貫像轉換成倒立虛像’較佳為倒立放大虛像.依 T紙張尺度顧中H S緒準_(CNS ) Α4 ϋ ( 裝 訂--------•線____ 580587 五、發明説明（8 求’經該反射單元反射之像與該折射鏡組之間距 二/於孩折射鏡組之焦距與其兩倍焦距之間。本 像頜不裝置之折射鏡組無限制， ~ 、來& * 4凸透鏡、非等曲率凸 或：二一早凸透叙。則叙該二單凸透鏡之曲率可為相同 ;裝；、T圭為該二單凸透鏡之曲率不同。本發明影像顯 , 以自反射早兀《入射光與該折射鏡組與該反射單元 入射面法線形成-夾角γ之範圍較佳為大利度，小於90 度，更佳為介於0度與70度之間。本發明影像顯示裝置之 影像顯示裝置之反射單元，可為習用之可反射之光學鏡 、且車乂佳為具反射功能（二棱鏡，或是於該三棱鏡上鍵有 100%反射率之反射膜。本發明影像顯示裝置之顯示單元 可為習用之顯示器，較佳為微平面顯示器，更佳為LCD、 LTPS LCD，L-C0S微顯示器或DMD微顯示器。本發明 之虛像成像鏡組功用為將物體或實像轉換虛像，較佳2面 鏡、凹透鏡或平面鏡組；若為凹面鏡或凹透鏡，則將物體 或實像放置於其焦距内會於鏡後產生一放大正立虛像；若 為平面鏡，則會於鏡後產生一正立等高虛像；因此，本發 明影像顯示裝置之折射鏡組與該虛像成像鏡組之間距，較 佳為該折射鏡組形成之實像與該虛像成像鏡組之間距小於 該虛像成像鏡組之焦距。本發明更包含一光源，以提供該 顯π單元光線。本發明更可視需要包含至少一半固態液晶 層遮罩於该虛像成像單元之一側，以控制外界光線之進 入；或是利用至少一可調式遮罩，同樣亦置於該虛像成像 I紙張尺度適用中國國家標準（CNS) Α4規格（210X297公釐 580587 五、發明説明（9) 單7L之i、J，以控制外界光線之進入。本發明之虛像成像 單元之透光率無限制’以可同時看到外界環境與虛像即 可，較佳為5〇-7〇%穿透，3〇_5〇%反射。本發明所使用 之視焦距壓縮單元可為習用之視焦距壓縮單元，較佳為一 個或數個由-凹透鏡與一凸透鏡組成之視焦距壓縮组。値 得注意的是，本發明可視需要包含一繞射鏡組，該繞射鏡 組係位於該視焦距壓縮單元與該反射單元該折射鏡組盘該 虛像成像鏡組之間，用以提高自該反射單元發出之 半輝度角。 a 本發明之影像顯示裝置並可選擇性地與一聽覺設備相 結合以形成整體音聲之設備。例如本發明影像顯示裝置可 再與-眼鏡型外罩、内罩相結合，並與—耳機相組裝，形 成-完整的眼鏡型視聽設備。該視聽設備可以連接其他現 有電腦或虛擬實境之微處理器装置以加強功能，例 電腦之顯示裝置器，或連接訓練機器（例如模擬機，太空 人無重力訓練）模擬訓練，或連接視訊系統; 信，教學，會議，監控之用，或作為駕敬交通載具之資;; 顯不及裱境顯示，或作為虛擬遊戲之顯示裝置。 【四、實施方式】 容，特 為能讓貴審查委員能更瞭解本發明之技術内 舉數較佳具體實施例説明如下。 實施例1 本紙帽國賴準（CNS ) A4規袼（210X297公釐） 580587 A7 __________B7____ 五、發明説明（10 ) 請參照圖8，圖8係本發明眼鏡型影像顯示裝置内部 之剖面圖。本實施例包含一殼體，内含二L _ C〇S微顯示 器2 1 0與2 1 1，二光源2丨5，二繞射鏡片2 9 0，二視焦距 壓縮組280，二個三菱鏡220與221(反射單元），二非等 曲率凸透鏡23 0與23 1 (折射透鏡組），以及二經部分鏡面 處理之凹面成像區域240與241(虛像成像單元）。其中， 該二微顯示器2 1 〇與2 1 1，以及光源2 1 5係置於該殼體之 中心位置，該二微顯示器2 1 〇與2 1 1之另一側則分別置有 二繞射片2 9 0與視焦距壓縮組2 8 0，該繞射片2 9 0位於該 顯示器2 1 〇或2 1 1與該視焦距壓縮組2 8 0之間。該二視焦 距壓縮組2 8 0之另一側分別置有三棱鏡2 2 0與三棱鏡 2 2 1 ’使得該二微顯示器2 1 〇與2 1 1與該視焦距壓縮組 2 8 0皆位於三棱鏡2 2 0與2 2 1之間。三稜鏡2 2 0與2 2 1下方 分別置有凸透鏡230與231，該凸透鏡230與231下方分 別為虛像成像區240與241。其中該凸透鏡230與231並 安排成使由三棱鏡2 2 0、2 2 1來之入射光與該凸透鏡2 3 0 與2 3 1與該反射單元入射面法線形成一 3 〇度之夾角γ。 請參照圖9，由顯示器2 1 0與2 1 1發出之光線，分別 往左右兩個方向行進，經由繞射鏡片2 9 0調整光線之半輝 度角，使散射之光線可調整成為平行光；之後再經過視 焦距壓縮組2 8 0，產生景深加大之效果◦之後再到達三棱 鏡220與221處，並反射至凸透鏡230與231處，將原影 像轉換形成一倒立放大實像，之後再經過該凹面鏡2 4 0與 2 4 1 ’再一次放大’形成一倒立放大虚像。 ___ 15 本紙張尺度適用中國國家標準（CNS) A4規格（210X297公楚） (請先閱讀背面之注意事項再填寫本頁各欄) 裝 訂 線！ 580587 A7 Γ---—-------- ---Β7 _ 五、發明説明（11 ) 凊參照圖1 0，圖1 0係本發明眼鏡型影像顯示裝置内 部之側視圖。此圖顯示該三棱鏡2 2 0會將顯示單元所提供 《影像偏折折射至凸透鏡2 3 0處，是為影像2 7 i，且該影 像2 7 1會落在該凸透鏡2 3 〇之焦距與兩倍焦距之間某處， 並依據凸鏡成像原理，在該凸透鏡2 3 〇之另一側的兩倍焦 距外會形成一上下倒立，左右方向不變之放大實像 2 7 2 (右有屏幕置於此則可看到一倒立放大實像），該實像 2 7 2之放大倍率取決於影像2 7丨與凸透鏡2 3 〇之距離，距 離愈近則放大倍率愈高。而該實像2 72須落於該凹面鏡 2 4 0之焦距内，同樣的，依據成像原理，在凹面鏡2 4 〇之 另一側會形成一放大虛像273，且該虛像2 73之放大倍率 亦取決於該實像272與該凹面鏡240之間的距離。値得注 意的是，在本實施例中凸透鏡2 3 〇與凹面鏡2 4 0之間沒有 屏幕，無法看到由凸透鏡2 3 0形成之放大實像；因此，我 們看到的現象是光線經由凸透鏡2 3 〇匯聚偏折至凹面鏡 240，之後於凹面鏡2 4〇偏折投射至觀測者眼中，但該光 線無法於眼球上聚焦成實像，所以眼睛會延伸該光線至 凹面鏡240鏡後，形成一與實像272方向相同之放大虛像 273 〇 熟習此技術領域者可認知到，為了達成上述的成像 設計，該三稜鏡220、凸透鏡230與凹面鏡240三者須成 一特定之相對位置，使得影像2 7 1可落於該凸透鏡2 3 0之 焦距與兩倍焦距之間，且影像272可落於該凹面鏡240之 焦距内。 16 本紙張尺度適用中國國家標準（CNS) A4規格（210X297公釐） (請先閲讀背面之注意事項再填寫本頁各欄) 裝 ------訂-------- ，線！ 五、發明説明（12 ) 合，之影像顯示裝置可選擇性地與一聽覺設備相結 刑外罢圖11所不。上述之影像顯示裝置320可再與一眼鏡 开二L10、Α罩340相結合，並與-耳機33〇相組裝， 疋正的眼叙型視聽設備。該視聽設備可以連接諸 Γ腦或虛擬實境之微處理器以作為電腦之顯示裝置 &、或連接4練機器（例如模擬機）模擬訓練，或連接 =系，進行遠距通信，敎學，會議，監控之用，或作 :::駛又通載具之資訊顯示及環境顯示，或作為虛擬 戲 < 顯示裝置。 實施例2 、、本貫施例構造大致如同實施例1所述，惟不同之處在 於孩虛像成像單元24G由凹面鏡置換為平面鏡。如此，所 形成之影像只經過凸透鏡230 —次折射與放大作用，之後 f經由平面鏡轉換成虛像，平面鏡不具有放大作用。但本 貫施例構造影像放大之倍率及作用，仍可由折射光線之凸 透鏡23 0所完成。 實施例3 本實施例構造大致如同實施例1所述，惟不同之處在 於該虛像成像單元240由凹面鏡置換為具4〇%反射率之凹 透鏡；其成像原理與放大倍率皆如同實施例丨所述。但置 換成凹透鏡之後，觀測者在觀測影像時可同時看見外界= 境。而因為本發明之裝置係以折射投影形成虛像，當採= 580587 A7 五、發明説明（13 ) ' '~' 凹透鏡作為虛像成像單元，該透射該凹透鏡之光線，因為 折射偏折角度較大，所以對於站在使用者前，且視線約略 寺高於眼鏡型顯示器之人，不會看到使用者正在使用或接 收之〜像及貝料，其保密及隱私性佳，且不會干擾周遭其 他人。 實施例4 本實施例構造大致如同實施例1所述，惟不同之處在 於邊虛像成像單元240係由一面鏡與凹透鏡組合而成；其 成像原理與放大倍率皆如同實施例1所述。該面鏡可上; 抽換，因此可依觀測者需要決定是否只觀測影像，或是想 同時看見外界環境。 實施例5 本實施例構造大致如同實施例丨所述，惟不同之處在 於該虚像成像單元240係由一遮罩與凹透鏡組合而成；其 成像原理與放大倍率皆如同實施例丨所述。該遮罩可上下 抽換，因此可依觀測者需要決定是否只觀測影像，或是想 同時看見外界環境。 實施例6 請參見圖12。本實施例構造大致如同實施们所述， 惟不同之處在於該虛像成像單元24〇外部加裝一半固態液 晶層遮罩350以及—偏光鏡片36();其成像原理與放:倍 石氏張尺度it财關家標準（CNS) A4規格(210^97^]----—_1Λ (請先閲讀背面之注意事項再填寫本頁各欄) 裝 Γ ^ ϋ— 1_1 II §ί ^ ^ · m n n ϋ 、τ 580587 丨丨 五、發明説明（14 ) 率皆如同實施例丨所述。惟該半固態液晶層遮罩於通電時 k為处明，使外界之光線通過，使用者可以於接收顯示器 影像之同時接受影像及監看周遭環境。當使用者關閉液: 層遮罩<電源，遮罩復遮除外界之光線，而為不受外界干 擾進行資訊或影像之接收，所以可以通電與否決定其為透 光或=透光狀態，作為一光柵使用。因此可依觀測者需要 決足是否只觀測影像，或是想同時看見外界環境。 此，，由於本實施例係利用凹透鏡作為虛像成像單元 240 ’是u高於使用者視線之外界環境強光（例如太陽 光）透射入該凹透鏡時，其入射凹透鏡後偏折折射角度 大，大邵份之太陽光進入凹透鏡後因為折射角度大，並不 會射入使用者之眼睛，所以本實施例運用折射形成虛像， 可以減少環境光之干擾，相對加強影像之對比。並可以於 觀賞接收影像或資訊時，在不影㈣像或資訊對比情形 ::同時觀察外界環境之動態。此影像顯示裝置應用範圍 〃尤’例如對於駕駛飛機，船，汽車，機車等交通工具之 同時多工進行多種任務操作，並可以兼顧駕 ^前述實施例可知，本發明之成像原理為虛像成像， 利用：折射鏡组(凸透鏡)形成—與原影像倒立之放 而纟後再利用—虛像成像單7L (凹面鏡、凹透鏡或 成像成一與原影像倒立之放大虛像。此種應用虚像 《眼鏡型影像顯示裝置，不會造成眼球壓迫，即 使長時間使用’在數小時内也不會有暈眩之情形產生，為 裝 (請先閲讀背面之注意事項再填寫本頁各欄) -----?τ--------·線丨 (cns) A4w^ (210X297 公釐） 19 A7 B7 580587 五、發明説明（15 ) 現今眼鏡型或頭盎型影像顯示技術之—大突破。本發明係 利用形成虛像於眼球，所以於使用者頭部移動時，影像因 杜卜勒效應及鬼影效應引發之影像模糊降低。另外由於 本發明係利用折射光線以形成虛像於使用者眼球，放大影 像時僅需要調整虛像成像鏡組鏡片，或折射鏡組（例如凸/ 之距離，角度甚至曲率，便可以完成，調整方法簡 早，佔用空間小。相對於該傳統形成實像於使用者眼球， 且需要佔用空間大之投影顯示裝置，具有簡化操作及空間 =用彈性大之相對優點。再者，由㈣發明係利用折射光 相形成虛像於使用者眼球，所以成像之反差對比較高， 大且較不受環境光之干擾，相對於傳統形成實像 万；使用者眼球之投影顯示裝置，影像品質較佳。而使用者 使用時，、對周遭非使用者，由於影像係折射成像，所以透 tf像成像境組之光線折射角度大，並不會影響與使用者 視線約略等高之周遭其他人，干擾相對較低。另外，本發 明利用一視焦距壓縮組增加影像之景深，且在光線進入視 焦距壓縮組之前尚設置有一繞射鏡片組’可使原本散射之 光線集中成為平行之光線，一方面可提高亮度，—方面可 減^由於散射光線干擾所造成之低影像反差或畫面外園反 白的現象。 此外，由於本發明影像顯示裝置，使用微顯示器，經過控 制虛像土成像單元（凹面鏡、凹透鏡或平面鏡）及折射鏡組 (凸二透鏡）之相對曲率，即可以達到於使用者眼前相當於放 大至數十对螢幕之效果，但是其所利用之各種光學元件皆 頁 玎 f 尺度適用中國 A4規格（210X297公潑） 20*!-Please read the notes on the back before filling in this page.} • n n I A7 ------ 5. Description of the invention (7) on the surface of the retina. Combining the map and the plan can explain the relative movement of the object or image. From the above description, it can be known that when the virtual image moves, the eyeball does not need to adjust the focal length, so there is no Doppler effect of increased intraocular pressure, image overlap or afterimage. This problem 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 person who uses convex transparent 1 70. Since the light path of the external light source 1 $ 〇 is the same as the light path direction of the projection image 7G190, the external light source will a to the image of the heart. There is a strong interference; Figure 6 is a conventional projection system using concave 1 1 1 reflection imaging. In this figure, the light path of the external light source 1 $ 〇 is the same as the light path of the image projected by the display unit 190, so it is also There will be strong interference; Figure 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 light path is not the same as the light path of the image projected by the display unit 190 and does not interfere with each other, so it can form a good darkroom effect and improve the contrast and sharpness of the image. The refracting mirror group of the image display device of the present invention will be reflected by the reflection unit to form an "image, which will be refracted to form an inverted real image, and then the real image will undergo two virtual :: image: elements to form a virtual image. The refracting mirror of the image display device of the present invention has the function of condensing and enlarging the image, so as to deflect from the early: the light reflected by the tooth Γ—formation magnification inverted to the original image:,: Γ =: ί imaging mirror group Converting the inverted mutual magnified through image formed by the refraction unit refraction lens group into an inverted virtual image 'preferably an inverted magnified virtual image. According to the T paper scale Gu Zhong HS Xu quasi_ (CNS) Α4 ϋ (binding ------ -• Line ____ 580587 V. Description of the invention (8 Find 'the distance between the image reflected by the reflection unit and the refractive lens group / the focal length of Yu's refractive lens group and its double focal length. This image is not equipped with a jaw There are no restrictions on the refractive lens group, ~, Lai & 4 convex lenses, non-equal curvature convex or: early morning convex. Then the curvature of the two single convex lenses can be the same; equipment; The curvature of the convex lens is different. The image of the present invention is based on self-reflection. The range of the angle formed by the incident light and the normal of the refractive lens group and the incident surface of the reflection unit is preferably large, less than 90 degrees, and more preferably Between 0 degrees and 70 degrees. The opposite of the image display device of the image display device of the present invention The reflecting unit can be a conventional reflective optical mirror, and the car can be a reflective function (two prisms, or a reflective film with a 100% reflectivity key on the triangular prism.) The display unit of the image display device of the present invention can For the conventional display, micro flat display is preferred, LCD, LTPS LCD, L-COS micro display or DMD micro display is preferred. The function of the virtual image imaging lens set of the present invention is to convert an object or real image into a virtual image, preferably two sides Mirror, concave lens or flat mirror group; if it is a concave mirror or concave lens, placing an object or real image within its focal length will produce an enlarged upright virtual image behind the mirror; if it is a flat mirror, an upright virtual image will be produced behind the mirror Therefore, the distance between the refracting mirror group of the image display device of the present invention and the virtual image imaging mirror group is preferably smaller than the focal distance of the virtual image imaging mirror group formed by the refractive lens group and the virtual image imaging mirror group. A light source is further provided to provide the light of the π display unit. According to the present invention, at least half of the solid-state liquid crystal layer may be masked on one side of the virtual image imaging unit to control external light. Enter; or use at least one adjustable mask, which is also placed on the virtual image. I paper size applies Chinese National Standard (CNS) A4 specifications (210X297 mm 580587. V. Description of the invention (9) Single 7L i, J In order to control the entry of external light. The 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 50-70% 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 the present invention It is necessary to include a diffractive lens group, which is located between the apparent focal length compression unit and the reflection unit, the refractive lens group disk, and the virtual image imaging lens group, so as to increase the half-brightness angle 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 device. The audiovisual equipment can be connected to other existing computers or virtual reality microprocessor devices to enhance functions, such as computer display devices, or connected to training machines (such as simulators, astronauts without gravity training) simulation training, or connected to video systems; For letter, teaching, conference, monitoring, or as a vehicle for driving traffic ;; Display less than framed display, or as a display device for virtual games. [Fourth, the implementation mode] Content, specifically to enable your review committee to better understand the technical enumeration of the present invention, the preferred specific embodiments are described below. Example 1 This paper cap is based on the CNS A4 regulations (210X297 mm) 580587 A7 __________B7____ 5. Description of the invention (10) Please refer to FIG. 8, which is a cross-sectional view of the interior of the glasses-type image display device of the present invention. This embodiment includes a housing containing two L_C0S microdisplays 2 1 0 and 2 1 1, two light sources 2 丨 5, two diffraction lenses 2 9 0, two focal length compression groups 280, two Mitsubishi Mirrors 220 and 221 (reflection unit), two non-equal curvature convex lenses 23 0 and 23 1 (refractive lens group), and two mirrored concave imaging areas 240 and 241 (virtual image imaging unit). Wherein, the two micro-displays 2 1 0 and 2 1 1 and the light source 2 1 5 are placed at the center of the casing, and the other sides of the two micro-displays 2 1 0 and 2 1 1 are respectively provided with two windings. The radiating sheet 290 and the apparent focal length compression group 280 are located between the display 2 10 or 2 1 1 and the apparent focal length compressing group 280. A triangular prism 2 2 0 and a triangular prism 2 2 1 ′ are respectively disposed on the other side of the two-view focal length compression group 2 8 0, so that the two microdisplays 2 1 0 and 2 1 1 and the apparent focal length compression group 2 8 0 are both located on a triangular prism. Between 2 2 0 and 2 2 1. Convex lenses 230 and 231 are respectively disposed below the two sides 2 2 0 and 2 2 1. The convex lenses 230 and 231 are respectively virtual image imaging areas 240 and 241. Wherein, the convex lenses 230 and 231 are arranged so that an incident angle γ between the incident light from the prisms 2 2 0 and 2 21 and the normals of the convex lenses 2 3 0 and 2 3 1 and the incident surface of the reflection unit is 30 °. Please refer to FIG. 9, the light emitted by the displays 2 1 0 and 2 1 1 travels to the left and right directions respectively, and the half-brightness angle of the light is adjusted through the diffractive lens 2 9 0 so that the scattered light can be adjusted into parallel light; After that, it passes the focal length compression group 2 0 0, which has the effect of increasing the depth of field. After that, it reaches the prisms 220 and 221 and reflects to the convex lenses 230 and 231. The original image is converted into an inverted magnified real image. The concave mirrors 2 4 0 and 2 4 1 'magnify again' to form an inverted magnified virtual image. ___ 15 This paper size is in accordance with China National Standard (CNS) A4 (210X297). (Please read the precautions on the back before filling in the columns on this page.) Binding line! 580587 A7 Γ ----------- --- B7 _ 5. Description of the invention (11) 凊 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 prism 2 2 0 will refract the image provided by the display unit to the convex lens 2 3 0, which is the image 2 7 i, and the image 2 7 1 will fall on the focal length of the convex lens 2 3 0 Somewhere between the two focal lengths, and according to the principle of convex lens imaging, an upside-down magnified real image will be formed outside the double focal length on the other side of the convex lens 2 3 0, and the left and right directions will not change. If you place it here, you can see an inverted magnified real image). The magnification of the real image 2 7 2 depends on the distance between the image 2 7 丨 and the convex lens 2 3 0. The closer the distance, the higher the magnification. The real image 2 72 must fall within the focal length of the concave mirror 2 40. Similarly, according to the imaging principle, a magnified virtual image 273 will be formed on the other side of the concave mirror 2 4 0, and the magnification of the virtual image 2 73 depends on The distance between the real image 272 and the concave mirror 240. It should be noted that in this embodiment, there is no screen between the convex lens 2 3 0 and the concave lens 2 4 0, and the magnified real image formed by the convex lens 2 3 0 cannot be seen; therefore, the phenomenon we see is that the light passes through the convex lens 2 〇Converge to the concave mirror 240, and then project into the observer's eye at the concave mirror 240. However, the light cannot be focused on the eyeball into a real image, so the eye will extend the light to the concave mirror 240 to form a real image. 272 magnified virtual image with the same direction 273. Those familiar with this technical field will recognize that in order to achieve the above-mentioned imaging design, the three lenses 220, convex lens 230, and concave mirror 240 must be in a specific relative position, so that the image 2 7 1 can be It falls between the focal length of the convex lens 230 and twice the focal length, and the image 272 can fall within the focal length of the concave mirror 240. 16 This paper size applies to China National Standard (CNS) A4 (210X297 mm) (Please read the precautions on the back before filling in the columns on this page) line! V. Description of the invention (12) In combination, the image display device can be selectively combined with an auditory device. The above-mentioned image display device 320 can be further combined with a pair of glasses, two L10, and A cover 340, and assembled with an earphone 33o, which is an eye-sight-type audiovisual device. The audio-visual equipment can be connected to the brain or virtual reality microprocessor as the display device of the computer, or connected to a training machine (such as a simulator) to simulate training, or connected to a system for remote communication and learning. For conference, monitoring, or as a ::: driving information display and environment display, or as a virtual play & display device. The structure of the second embodiment is substantially the same as that described in the first embodiment, except that the virtual imaging unit 24G is replaced with a concave mirror by a flat mirror. In this way, the formed image only passes through the convex lens 230 for sub-refraction and magnification, and then f is converted into a virtual image through a plane mirror, and the plane mirror has no magnification effect. However, the magnification and function of image magnification constructed in this embodiment can still be performed by a convex lens 230 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 240 is replaced by a concave mirror with a concave lens having a reflectance of 40%. The imaging principle and magnification are the same as those in the embodiment. Described. However, after changing to a concave lens, the observer can see the outside world at the same time when observing the image. And because the device of the present invention forms a virtual image by refraction projection, when mining = 580587 A7 V. Description of the invention (13) '~~ A concave lens is used as a virtual image imaging unit. The light transmitted through the concave lens has a large refractive deflection angle. Therefore, for those who stand in front of the user and have a line of sight slightly higher than the glasses-type display, they will not see the images and shell materials that the user is using or receiving. It has good confidentiality and privacy, and will not interfere with others around people. Embodiment 4 The structure of this embodiment is substantially the same as that described in Embodiment 1, except that the edge-virtual imaging unit 240 is a combination of a mirror and a concave lens; the imaging principle and magnification are the same as those described in Embodiment 1. The mirror can be switched on and off, so it is up to the observer to decide whether to observe only the image or to see the external environment at the same time. Embodiment 5 The structure of this embodiment is substantially the same as that described in the embodiment 丨 except that the virtual image imaging unit 240 is a combination of a mask and a concave lens; its imaging principle and magnification are as described in the embodiment 丨. The mask can be swapped up and down, so it is up to the observer to decide 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 by the implementers, except that the virtual image imaging unit 24 is externally equipped with a half-solid-state liquid crystal layer mask 350 and a polarizing lens 36 (); its imaging principle and magnification: Standards IT Financial Standards (CNS) A4 Specification (210 ^ 97 ^) ----—_ 1Λ (Please read the precautions on the back before filling in the columns on this page) Install Γ ^ ϋ— 1_1 II §ί ^ ^ · · mnn ϋ, τ 580587 丨 丨 V. Description of the invention (14) The rate is the same as that described in the embodiment 丨. However, when the semi-solid liquid crystal layer is energized, k is used to make the outside light pass, and the user can receive it The monitor image receives the image and monitors the surrounding environment at the same time. When the user turns off the liquid: the layer mask < power supply, the mask covers the light outside the boundary, and the information or image is received without external interference, so it can be powered on It is determined whether it is in a light-transmitting state or a light-transmitting state, and is used as a grating. Therefore, it can be determined whether the observer only needs to observe the image or whether he wants to see the external environment at the same time. Therefore, this embodiment uses a concave lens as Virtual image imaging unit 240 When u is above the user ’s line of sight, when strong ambient light (such as sunlight) is transmitted into the concave lens, the angle of deflection and refraction after entering the concave lens is large. It enters the eyes of the user, so this embodiment uses refraction to form a virtual image, which can reduce the interference of ambient light and relatively enhance the contrast of the image. It can also be used to view the received image or information without shadowing the image or information contrast :: At the same time, observe the dynamics of the external environment. The scope of application of this image display device is particularly 'for example, for multi-tasking and multi-tasking operations while driving aircraft, boats, automobiles, locomotives and other vehicles, and can take into account driving ^ The foregoing embodiments show that the present invention The imaging principle is virtual image imaging, using: formation of a refraction lens group (convex lens)-put it upside down with the original image and reuse it later-virtual image imaging single 7L (concave mirror, concave lens or imaging into an enlarged virtual image inverted with the original image. Application of virtual image "glasses-type image display device, will not cause eye pressure, even if used for a long time There will be no dizziness during the time, please install it (please read the precautions on the back before filling in the columns on this page) -----? Τ -------- · line 丨 (cns) A4w ^ (210X297 mm) 19 A7 B7 580587 V. Description of the invention (15) A breakthrough in today's glasses-type or head-mounted image display technology. The present 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, since the present invention uses refracted light to form a virtual image in the user's eyeball, only the lens of the virtual image imaging lens group or the refractive lens group needs to be adjusted when the image is enlarged. For example, convex / distance, angle, and even curvature can be completed, the adjustment method is simple and early, and the space is small. Compared with the traditional projection display device that forms a real image in the user's eyeball and requires a large space, it has the relative advantages of simplified operation and space = large flexibility. In addition, the invention uses the refracted light phase to form a virtual image on the user's eyeball, so the contrast of the imaging is high, large and less affected by the ambient light, compared with the traditional formation of a real image; the projection display device of the user's eyeball , Better image quality. When the user is using it, the surrounding non-users, because the image is refraction imaging, so the light refraction angle of the tf image imaging environment group is large, and it will not affect other people around the same height as the user ’s line of sight. Lower. In addition, the present invention uses a focal length compression group to increase the depth of field of the image, and a diffractive lens group is provided before the light enters the focal length compression group, so that the originally scattered light can be concentrated into parallel rays, on the one hand, the brightness can be improved. -The aspect can reduce the phenomenon of low image contrast caused by scattered light interference or the phenomenon of whitening outside the screen. In addition, since the image display device of the present invention uses a micro-display, the relative curvature of the virtual image soil imaging unit (concave mirror, concave lens or plane mirror) and the refractive lens group (convex lens) can be reached in front of the user's eyes, which is equivalent to magnification to Dozens of effects on the screen, but the various optical components used by it are all 玎 f standard applicable to China A4 specification (210X297)
580587 五、發明説明（16 ) t有ί量輕、體積小之優點，材料成本低，且耗用電力 二二使用彈性大，同時可降低生產成本，相當 综上所陳，本發明無論就目的、手段及功效，在在 =顯不其迥料習知技術之特徵，為「具視焦距壓縮组之 又體折射影像顯示裝置」之—大突破，懇請ι審查❹ 明祭，早日賜准專利，俾嘉惠社會，實感德便。惟應注音 的是、，上述諸多實施例僅係為了便於説明而舉例而已，: 發明所主張之權利範圍自應以申請專利範圍所述為準 非僅限於上述實施例。 【五、圖式簡單説明】 圖1係習用影像投影顯示裝置。 圖2 a，2 b，2 c，2 d，2 e係人眼都卜勒效應之示意圖。 圖3係人眼觀看實像之示意圖。 圖4a，4b，4c係人眼觀看虛像之示意圖。. 圖5係習知以凸透鏡直接放大投影之示意圖。 圖6係習知以凹面鏡反射投影之示意圖。 圖7係本發明以折射投影之示意圖〇 圖8係本發明眼鏡型影像顯示裝置内部之剖面圖。 圖9係本發明眼鏡型影像顯示裝置内部之上視圖。 圖1 0係本發明眼鏡型影像顯示裝置内部之側視圖與虛像成 像原理。 圖1 1係本發明眼鏡型影像顯示裝置之組合示意圖。 本紙張尺度適用中國國家標準（CNS) A4規格（210X297公釐） ：裝 i»-----訂--------I (請先閲讀背面之注意事項再填寫本頁各襴) 21 580587 A7 - ----------^B7_ _ 五、發明説明（17 ) 圖1 2係本發明眼鏡型影像顯示裝置之另一組合示意圖。 【六 、圖號説明】 110 液晶顯TF器 210 L-COS微顯示器310 外罩 120 雙向分光器 211 L-COS微顯示器320 影像顯示裝置 130 偏光光束分離器215 光源 330 耳機 140 投影鏡頭 220 三棱鏡 340 内罩 150 面鏡 221 三棱鏡 350 半固態液晶遮罩 160 面鏡 230 凸透鏡 360 偏光鏡片 170 凸透鏡 231 凸透鏡 5 眼球 171 凹面鏡 240 凹面鏡 501 眼球 172 凸透鏡 241 凹面鏡 502 眼球 180 外來光源 260 凹面鏡 503 眼球 190 顯示單元 270 影像 504 眼球 4 實像 271 影像 51 水晶體 41 影像 272 影像 511 水晶體 412 影像 273 影像 512 水晶體 413 影像 280 視焦距壓縮組 513 水晶體 42 實像 290 繞射鏡片 514 水晶體 43 虛像 6 實像 44 虛像 61 實像 62 殘像 63 殘像 64 實像 本紙張尺度適用中國國家標準（CNS) A4規格（210X297公釐） (請先閲讀背面之注意事項再填寫本頁各欄) 裝 _ 訂580587 V. Description of the invention (16) t has the advantages of light weight and small volume, low material cost, high power consumption and high flexibility in use. At the same time, it can reduce production costs. It is quite a summary of the invention. , Means, and effect, are significant breakthroughs in the characteristics of the conventional technology, which is "a refraction image display device with apparent focal length compression group"-a major breakthrough. I urge you to review the Ming Festival and grant a quasi-patent at an early date.俾 Jia Hui society, really feel virtuous. However, it should be noted that the above-mentioned many embodiments are just examples for the convenience of explanation. The scope of the claimed rights of the invention should be based on the scope of the patent application, and is not limited to the above-mentioned embodiments. [V. Brief Description of Drawings] Figure 1 is a conventional image projection display device. Figure 2a, 2b, 2c, 2d, and 2e are schematic diagrams of the human Doppler effect. 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. Figure 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 the present invention by refracting projection. FIG. 8 is a cross-sectional view inside the glasses-type image display device of 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. This paper size applies to China National Standard (CNS) A4 specification (210X297 mm): Install i »----- Order -------- I (Please read the precautions on the back before filling in each page. ) 21 580587 A7----------- ^ B7_ _ V. Description of the invention (17) Figure 12 is a schematic diagram of another combination of the glasses-type image display device of the present invention. [六 、 Illustration of drawing number] 110 LCD TF display 210 L-COS micro-display 310 Cover 120 Bi-directional beam splitter 211 L-COS micro-display 320 Image display device 130 Polarized beam splitter 215 Light source 330 Headphone 140 Projection lens 220 Triangular prism 340 Inside Cover 150 Face mirror 221 Triangular mirror 350 Semi-solid liquid crystal mask 160 Face mirror 230 Convex lens 360 Polarized lens 170 Convex lens 231 Convex lens 5 Eyeball 171 Concave lens 240 Concave lens 501 Eyeball 172 Convex lens 241 Concave mirror 502 Eyeball 180 External light source 260 Concave mirror 503 Eyeball 190 Display unit 270 Image 504 Eyeball 4 Real image 271 Image 51 Water crystal 41 Image 272 Image 511 Water crystal 412 Image 273 Image 512 Water crystal 413 Image 280 Focal length compression group 513 Water crystal 42 Real image 290 Diffraction lens 514 Water crystal 43 Virtual image 6 Real image 44 Virtual image 61 Real image 62 Afterimage 63 Afterimage 63 Afterimage Image 64 real image This paper size applies Chinese National Standard (CNS) A4 specification (210X297 mm) (Please read the precautions on the back before filling in the columns on this page)