TWI691741B - Head-mounted display appaptus and lens - Google Patents
Head-mounted display appaptus and lens Download PDFInfo
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本發明是有關於一種顯示裝置及透鏡,且特別是有關於一種頭戴式顯示裝置及應用於此頭戴式顯示裝置的透鏡。The invention relates to a display device and a lens, and in particular to a head-mounted display device and a lens applied to the head-mounted display device.
虛擬實境(Virtual Reality, VR)是利用電腦技術模擬產生一個三維空間的虛擬世界,提供使用者關於視覺、聽覺等感官模擬,讓使用者感覺身歷其境。在目前的虛擬實境裝置中都是以視覺體驗為主,利用左右眼的兩個視角略有差異的分割畫面來模擬人眼視差,影像光束再經過虛擬實境裝置內的透鏡組後而在左右兩眼內的視網膜成像,以對人眼產生一個廣視角的畫面。Virtual reality (Virtual Reality, VR) is the use of computer technology to generate a virtual world in a three-dimensional space, providing users with visual, auditory and other sensory simulations, allowing users to feel the experience. The current virtual reality devices are mainly based on visual experience. The two different viewing angles of the left and right eyes are used to simulate the parallax of the human eye. The image beam passes through the lens group in the virtual reality device and then Imaging the retina in the left and right eyes to produce a wide-angle view of the human eye.
然而,在現有技術中,通常是使用四片式的透鏡組來對影像光束做光學上的調整,且這四片式透鏡組例如是分成兩組子透鏡組(即每一子透鏡組包括兩片透鏡)的形式分別設置於左右兩眼前。但是,這樣的做法需要較繁雜的組裝過程,並且組裝過程中亦會產生對應的公差,使得影像光束偏離了原先預設的光路而使得整個影像畫面失真。However, in the prior art, a four-piece lens group is usually used to optically adjust the image beam, and the four-piece lens group is divided into two sub-lens groups (that is, each sub-lens group includes two The form of lens) is set in front of the left and right eyes. However, such a method requires a complicated assembly process, and corresponding tolerances are also generated during the assembly process, causing the image beam to deviate from the originally preset optical path and distorting the entire image screen.
本發明提供一種透鏡,其可使應用此透鏡的頭戴式顯示裝置產生一廣視角的顯示畫面外,並具有良好的影像品質。The invention provides a lens, which can enable a head-mounted display device using the lens to produce a wide-angle display screen, and has good image quality.
本發明提供一種頭戴式顯示器,其具有廣視角的顯示畫面且具有良好的影像品質。The present invention provides a head-mounted display with a wide viewing angle and good image quality.
本發明的一實施例中提供一種頭戴式顯示裝置,包括二顯示器以及具有屈光率的透鏡。二顯示器分別提供對應的影像畫面。透鏡具有相對的第一表面、第二表面以及光軸。第一表面朝向二顯示器。第二表面背對二顯示器。第一表面具有第一區域以及第三區域,第一區域位於光軸的第一側,第三區域位於光軸的第二側。第二表面具有第二區域以及第四區域,第二區域位於光軸的第一側,第四區域位於光軸的第二側。二顯示器中的一者所提供的一影像畫面由第一表面的第一區域入射透鏡,且由第二表面的第二區域出射於透鏡。二顯示器中的另一者所提供的另一影像畫面由第一表面的第三區域入射透鏡,且由第二表面的第四區域出射於透鏡。第一區域的曲率半徑為定值且不為零。第三區域的曲率半徑為定值且不為零。第二區域的曲率半徑為定值且不為零,第四區域的曲率半徑為定值且不為零。An embodiment of the present invention provides a head-mounted display device including two displays and a lens with a refractive index. The two displays provide corresponding video frames respectively. The lens has opposing first surfaces, second surfaces, and an optical axis. The first surface faces the two displays. The second surface faces away from the two displays. The first surface has a first area and a third area. The first area is located on the first side of the optical axis, and the third area is located on the second side of the optical axis. The second surface has a second area and a fourth area. The second area is located on the first side of the optical axis, and the fourth area is located on the second side of the optical axis. An image provided by one of the two displays enters the lens from the first area of the first surface and exits the lens from the second area of the second surface. Another image frame provided by the other of the two displays enters the lens from the third area of the first surface and exits the lens from the fourth area of the second surface. The radius of curvature of the first region is fixed and not zero. The radius of curvature of the third region is fixed and not zero. The radius of curvature of the second area is constant and not zero, and the radius of curvature of the fourth area is constant and not zero.
在本發明的一實施例中,上述的第一區域的曲率半徑與第三區域的曲率半徑的範圍落在110毫米至150毫米的範圍內。In an embodiment of the invention, the range of the radius of curvature of the first region and the radius of curvature of the third region falls within a range of 110 mm to 150 mm.
在本發明的一實施例中,上述的透鏡的系統焦距的範圍落在300毫米至600毫米的範圍內。In an embodiment of the invention, the range of the system focal length of the above-mentioned lens falls within the range of 300 mm to 600 mm.
在本發明的一實施例中,上述的第一表面更具有第五區域。第五區域連接第一區域與第三區域。In an embodiment of the invention, the above-mentioned first surface further has a fifth area. The fifth area connects the first area and the third area.
在本發明的一實施例中,上述的第五區域為平面。In an embodiment of the invention, the above-mentioned fifth area is a plane.
在本發明的一實施例中,上述的第五區域的曲率半徑為定值且不為零。In an embodiment of the invention, the radius of curvature of the aforementioned fifth area is a fixed value and is not zero.
在本發明的一實施例中,上述的第一區域的曲率半徑與第三區域的曲率半徑的範圍落在20毫米至45毫米的範圍內。In an embodiment of the present invention, the radius of curvature of the first region and the radius of curvature of the third region fall within a range of 20 mm to 45 mm.
在本發明的一實施例中,上述的透鏡的系統焦距的範圍落在25毫米至90毫米的範圍內。In an embodiment of the invention, the range of the system focal length of the aforementioned lens falls within the range of 25 mm to 90 mm.
在本發明的一實施例中,上述的第二區域的曲率半徑與第四區域的曲率半徑的範圍落在150毫米至250毫米的範圍內。In an embodiment of the present invention, the radius of curvature of the second region and the radius of curvature of the fourth region fall within a range of 150 mm to 250 mm.
在本發明的一實施例中,上述的第二表面更具有第六區域。第六區域連接第二區域與第四區域。In an embodiment of the invention, the above-mentioned second surface further has a sixth area. The sixth area connects the second area and the fourth area.
在本發明的一實施例中,上述的第六區域為平面。In an embodiment of the invention, the above-mentioned sixth area is a plane.
在本發明的一實施例中,上述的第六區域的曲率半徑為定值且不為零。In an embodiment of the invention, the radius of curvature of the sixth region described above is a fixed value and is not zero.
在本發明的一實施例中,上述的第六區域的曲率半徑等於第二區域的曲率半徑,且第六區域的曲率半徑等於第四區域的曲率半徑。In an embodiment of the present invention, the radius of curvature of the sixth area is equal to the radius of curvature of the second area, and the radius of curvature of the sixth area is equal to the radius of curvature of the fourth area.
在本發明的一實施例中,上述的頭戴式顯示裝置具有屈光率的透鏡數量僅一個。In an embodiment of the invention, the above-mentioned head-mounted display device has only one lens with a refractive index.
本發明的一實施例中提供一種具有屈光率的透鏡。透鏡具有光軸。透鏡包括第一表面以及第二表面。第一表面具有第一區域以及第三區域。第一區域位於光軸的第一側。第三區域位於光軸的第二側。第二表面相對於第一表面。第二表面具有第二區域以及第四區域。第二區域位於光軸的第一側。第四區域位於光軸的第二側。第一側相對於第二側。透鏡更滿足以下的條件式組合的其中之一: 條件式組合1:110毫米≤R1≤150毫米、110毫米≤R3≤150毫米、150毫米≤R2≤250毫米且150毫米≤R4≤250毫米; 條件式組合2:20毫米≤R1≤45毫米、20毫米≤R3≤45毫米、150毫米≤R2≤250毫米且150毫米≤R4≤250毫米; 其中,第一區域的曲率半徑為R1,第三區域的曲率半徑為R3,該第二區域的曲率半徑為R2,且第四區域的曲率半徑為R4。 An embodiment of the present invention provides a lens with a refractive power. The lens has an optical axis. The lens includes a first surface and a second surface. The first surface has a first area and a third area. The first area is located on the first side of the optical axis. The third area is located on the second side of the optical axis. The second surface is opposite to the first surface. The second surface has a second area and a fourth area. The second area is located on the first side of the optical axis. The fourth area is located on the second side of the optical axis. The first side is opposite to the second side. The lens satisfies one of the following conditional combinations: Conditional combination 1: 110 mm ≤ R1 ≤ 150 mm, 110 mm ≤ R3 ≤ 150 mm, 150 mm ≤ R2 ≤ 250 mm and 150 mm ≤ R4 ≤ 250 mm; Conditional combination 2: 20 mm ≤ R1 ≤ 45 mm, 20 mm ≤ R3 ≤ 45 mm, 150 mm ≤ R2 ≤ 250 mm and 150 mm ≤ R4 ≤ 250 mm; The radius of curvature of the first region is R1, the radius of curvature of the third region is R3, the radius of curvature of the second region is R2, and the radius of curvature of the fourth region is R4.
在本發明的一實施例中,上述的第一表面更具有第五區域。第五區域連接第一區域與第三區域。In an embodiment of the invention, the above-mentioned first surface further has a fifth area. The fifth area connects the first area and the third area.
在本發明的一實施例中,上述的第五區域為平面。In an embodiment of the invention, the above-mentioned fifth area is a plane.
在本發明的一實施例中,上述的第五區域的曲率半徑為定值且不為零。In an embodiment of the invention, the radius of curvature of the aforementioned fifth area is a fixed value and is not zero.
在本發明的一實施例中,上述的第五區域的曲率半徑等於第一區域的曲率半徑,且第五區域的曲率半徑等於第三區域的曲率半徑。In an embodiment of the invention, the radius of curvature of the fifth region is equal to the radius of curvature of the first region, and the radius of curvature of the fifth region is equal to the radius of curvature of the third region.
在本發明的一實施例中,當上述的透鏡符合條件式組合1時,透鏡的系統焦距的範圍落在300毫米至600毫米的範圍內。In an embodiment of the present invention, when the above-mentioned lens meets
在本發明的一實施例中,當上述的透鏡符合條件式組合2時,透鏡的系統焦距的範圍落在25毫米至90毫米的範圍。In an embodiment of the invention, when the above-mentioned lens meets Conditional Combination 2, the system focal length of the lens falls within the range of 25 mm to 90 mm.
在本發明的一實施例中,上述第二區域的曲率半徑與第四區域的曲率半徑的範圍落在150毫米至250毫米的範圍內。In an embodiment of the invention, the radius of curvature of the second region and the radius of curvature of the fourth region fall within a range of 150 mm to 250 mm.
在本發明的一實施例中,上述的第二表面更具有第六區域,且第六區域連接第二區域與第四區域。In an embodiment of the invention, the above-mentioned second surface further has a sixth area, and the sixth area connects the second area and the fourth area.
在本發明的一實施例中,上述的第六區域為平面。In an embodiment of the invention, the above-mentioned sixth area is a plane.
在本發明的一實施例中,上述的第六區域的曲率半徑為定值且不為零。In an embodiment of the invention, the radius of curvature of the sixth region described above is a fixed value and is not zero.
在本發明的一實施例中,上述的第六區域的曲率半徑等於第二區域的曲率半徑,且第六區域的曲率半徑等於第四區域的曲率半徑。In an embodiment of the present invention, the radius of curvature of the sixth area is equal to the radius of curvature of the second area, and the radius of curvature of the sixth area is equal to the radius of curvature of the fourth area.
基於上述,在本發明的實施例的頭戴式顯示裝置與透鏡中,單片透鏡的第一表面(朝向二顯示器的表面)的第一、第三區域的曲率半徑設計為定值且不為零,此透鏡的第二表面(背向二顯示器的表面)的第二、第四區域的曲率半徑設計為定值且不為零。二影像畫面的一者可依序穿透第一、第三區域並出射於透鏡而可成像於使用者的眼睛,二影像畫面的另一者則依序穿透第二、第四區域並出射於透鏡而可成像於使用者的另一隻眼睛,據此提供使用者一廣視角的影像整合畫面。由於上述的透鏡係為單片式透鏡,因此頭戴式顯示裝置可以以較少的組裝製程而提供給使用者品質更為良好的影像整合畫面。Based on the above, in the head-mounted display device and lens of the embodiment of the present invention, the curvature radii of the first and third regions of the first surface of the single lens (the surface facing the two displays) are designed to be fixed and not Zero, the radius of curvature of the second and fourth regions of the second surface of this lens (the surface facing away from the second display) is designed to be a fixed value and not zero. One of the two image frames can sequentially penetrate the first and third regions and exit the lens to be imaged by the user's eye, and the other of the two image frames sequentially penetrates the second and fourth regions and exit The lens can be imaged on the other eye of the user, thereby providing the user with a wide-angle image integration screen. Since the above lens is a monolithic lens, the head-mounted display device can provide a user with a better quality image integration screen with fewer assembly processes.
為讓本發明的上述特徵和優點能更明顯易懂,下文特舉實施例,並配合所附圖式作詳細說明如下。In order to make the above-mentioned features and advantages of the present invention more obvious and understandable, the embodiments are specifically described below in conjunction with the accompanying drawings for detailed description as follows.
圖1是本發明的一實施例的頭戴式顯示裝置的概要示意圖。圖2是圖1的頭戴式顯示裝置的光學模擬圖。應注意的是,為求圖面簡潔,於圖2中省略示出載架130。FIG. 1 is a schematic diagram of a head-mounted display device according to an embodiment of the invention. FIG. 2 is an optical simulation diagram of the head-mounted display device of FIG. 1. It should be noted that, for simplicity, the
請參照圖1與圖2,在本實施例中,頭戴式顯示裝置100包括二顯示器110、透鏡120與載架130。頭戴式顯示裝置100僅包括一個具有屈光率的透鏡120。於以下的段落中會詳細地說明以上元件。Please refer to FIGS. 1 and 2. In this embodiment, the head-mounted
顯示器110為用以提供使用者影像畫面的電子元件。於本實施例中,顯示器110的數量為二個,且分別設置於使用者的左眼E1與右眼E2前方(如圖2所示)。顯示器110的種類可例如是液晶顯示器(Liquid Crystal Display)、發光二極體顯示器(Light Emitting Diode Display)、微型發光二極體顯示器(Micro LED display)或有機發光二極體顯示器(Organic Light Emitting Diode Display),但不以此為限。The
透鏡120具有第一表面122、第二表面124以及光軸I。第一表面122相對於第二表面124。第一表面122朝向二顯示器110,亦可被稱為顯示側面。第二表面124朝向使用者的眼睛E,亦可被稱為目側面。光軸I具有相對的第一側S1與第二側S2,其中第一側S1例如是對應於使用者的左眼E1的左側,第二側S2例如是對應於使用者的右眼E2的右側。The
於本實施例中,透鏡120的態樣例如是彎月狀透鏡。詳細來說,第一表面122具有第一區域P1、第三區域P3以及第五區域P5。第一區域P1位於光軸I的第一側S1。第三區域P3位於光軸I的第二側S2。光軸I通過第五區域P5。第五區域P5連接第一區域P1與第三區域P3。於本實施例中,第一、第三與第五區域P1、P3、P5所分別具有的曲率半徑R1、R3、R5皆為相同的定值且不為零。也就是說,第一、第三、第五區域P1、P3、P5共同構成一個連續且平滑的曲面,即,整個第一表面122例如是球面,且例如是凸面朝向顯示器110的凸球面。於本發明的實施例中,曲率半徑R1、R3、R5的範圍例如是可被設計成落在110毫米至150毫米的範圍內,以對應不同大小的顯示器110而搭配使用。於本實施例中,較佳地,曲率半徑R1、R3、R5例如是皆被設計為150毫米。In this embodiment, the appearance of the
另一方面,第二表面124具有第二區域P2、第四區域P4以及第六區域P6。第二區域P2位於光軸I的第一側S2。第四區域P4位於光軸I的第二側S2。光軸I通過第六區域P6。第六區域P6連接第二區域P2與第四區域P4。第二、第四與第六區域P2、P4、P6所分別具有的曲率半徑R2、R4、R6亦皆為相同的定值且不為零。也就是說,第二、第四、第六區域P2、P4、P6亦共同構成一個連續且平滑的曲面,即,整個第二表面124例如是球面,且例如是凹面朝向眼睛E的凹球面。於本發明的實施例中,曲率半徑R2、R4、R6例如是可被設計成落在150毫米至250毫米的範圍內,以對應不同大小的顯示器110搭配使用。於本實施例中,曲率半徑R2、R4、R6例如是皆被設計為200毫米。On the other hand, the
此外,在本發明實施例的彎月形透鏡120的重要參數設計範圍如下:透鏡120的系統焦距(Effective Focal Length, EFL)例如是可被設計為落在300毫米至600毫米的範圍內。於本實施例中,系統焦距例如是522毫米,但不以此為限。第一表面122的第一區域P1與顯示器112的最短距離例如為245毫米。應注意的是,第五區域P5與第六區域P6的曲率半徑R5、R6則可以依據製程與設計等考量而設計,本發明並不以此為限。In addition, the design range of important parameters of the
載架130係用以承載透鏡120與二顯示器110的承載元件。二顯示器110與透鏡120設置於載架130內。載架130例如是包括頭帶(未示出),使用者可藉由頭帶將頭戴式顯示裝置100穿戴於頭部。The
於以下的段落中會詳細地說明本實施例的光學效果。The optical effect of this embodiment will be described in detail in the following paragraphs.
請參照圖2,於本實施例中,二顯示器110分別提供對應的影像光束。透鏡120的第一區域P1與第二區域P2位於由顯示器112所提供的影像光束的傳遞路徑上。透鏡120的第三區域P3與第四區域P4位於由顯示器114所提供的影像光束的傳遞路徑上。顯示器112所提供的影像光束由第一表面122的第一區域P1入射於透鏡120,且由第二表面124的第二區域P2出射於透鏡120,並成像於使用者的左眼E1,以使使用者感受到一部分的影像畫面。另一顯示器114所提供的影像光束由第一表面122的第三區域P3入射於透鏡120,且由第二表面122的第四區域P4出射於透鏡120,並成像於使用者的右眼E2,以使使用者感受到另一部分的影像畫面。第五與第六區域P5、P6並未有影像光束通過,而可被稱為光學無效區,其中光學無效區的寬度W1例如是55毫米,但不以此為限。據此,使用者可藉由此單片透鏡120而感受到廣視角(例如是210度)的影像整合畫面,而可實現虛擬實境的相關應用。由於本實施例的頭戴式顯示裝置100採用了單片透鏡120,避免了習知多片式透鏡組中所需的組裝程序以及組裝程序所衍生的畫面失真問題,因此頭戴式顯示裝置100可提供給使用者品質良好的影像整合畫面。Please refer to FIG. 2. In this embodiment, the two
此外,由於作為目側面的第二表面124中的不同區域P2、P4滿足了條件式組合:110毫米≤R2≤150毫米且110毫米≤R4≤150毫米,而此面形設計較為符合大部分的眼鏡架構,而不容易與眼鏡產生結構上的干涉。因此,當使用者在同時穿戴近視(或遠視)眼鏡以及頭戴式顯示裝置100時較不容易產生不適感。In addition, because the different regions P2 and P4 in the
應注意的是,於上述的實施例中,第一、第三與第五區域P1、P3、P5的所分別具有的曲率半徑R1、R3、R5例如是被設計為相同。於其他的實施例中,亦可以被設計為彼此不同,或者是,可以三者中的兩者相同而另一者與其他兩者不同。類似地,第二、第四與第六區域P2、P4、P6的曲率半徑R2、R4、R6例如是彼此被設計為相同,於其他的實施例中,亦可以設計為彼此不同,或者是,可以三者中的兩者相同而另一者與其他兩者不同。It should be noted that in the above-described embodiments, the curvature radii R1, R3, and R5 of the first, third, and fifth regions P1, P3, and P5, respectively, are designed to be the same. In other embodiments, it may be designed to be different from each other, or two of the three may be the same and the other may be different from the other two. Similarly, the curvature radii R2, R4, R6 of the second, fourth, and sixth regions P2, P4, P6 are designed to be the same as each other. In other embodiments, they can also be designed to be different from each other, or, It is possible that two of the three are the same and the other is different from the other two.
在此必須說明的是,以下的實施例沿用上述實施例的元件標號與部分內容,其中採用相同或近似的標號來表示相同或近似的元件,並且省略了相同技術內容的說明。關於省略部分的說明可參考前述實施例,在此不贅述。It must be noted here that the following embodiments follow the element numbers and partial contents of the above embodiments, wherein the same or similar reference numbers are used to indicate the same or similar elements, and the description of the same technical content is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, which will not be repeated here.
圖3至圖5為不同實施例的頭戴式顯示裝置的光學模擬圖。應注意的是,為求圖面簡潔,於圖3至圖5中皆省略示出載架130。3 to 5 are optical simulation diagrams of head-mounted display devices of different embodiments. It should be noted that, for the sake of simplicity, the
請參照圖3,圖3的頭戴式顯示裝置100a與透鏡120a類似於圖1的頭戴式顯示裝置100與透鏡120,其主要差異在於:第一表面122a的第五區域R5a為平面,且第二表面124a的第六區域R6a為平面。即,第五區域P5a與第六區域P6a的曲率半徑R5、R6為無限大。Please refer to FIG. 3, the head-mounted
請參照圖4,圖4的頭戴式顯示裝置100b與透鏡120b類似於圖1的頭戴式顯示裝置100與透鏡120,其主要差異在於:於本實施例中,透鏡120b的態樣例如是雙凸狀透鏡,即第一表面122b的二局部區域(即第一與第三區域P1b、P3b)相較於其他區域(第五區域P5b)凸起的程度更明顯。於本發明的實施例中,第一區域P1b的曲率半徑R1例如是可被設計成落在20毫米至45毫米的範圍內。第三區域P3b的曲率半徑R3例如是可被設計成落在20毫米至45毫米的範圍內。於本實施例中,曲率半徑R1、R3例如是30毫米。另一方面,第二區域P2b的曲率半徑R2例如是可被設計成落在150毫米至250毫米的範圍內。第四區域P4b的曲率半徑R4例如是可被設計成落在150毫米至250毫米的範圍內。於本實施例中,曲率半徑R2、R4例如是200毫米。至於第五區域P5與第六區域P6的曲率半徑R5、R6則可以依據製程與設計等考量而設計,本發明並不以此為限。光學無效區的寬度W2例如是8毫米。Please refer to FIG. 4. The head-mounted
此外,在本發明實施例的雙凸形透鏡120b的重要參數設計範圍如下:透鏡120b的系統焦距例如是可被設計為落在25毫米至90毫米的範圍內。於本實施例中,系統焦距例如是39.8毫米,但不以此為限。第一表面122的第一區域P1與顯示器112的最短距離例如為41毫米。應注意的是,第五區域P5與第六區域P6的曲率半徑R5、R6則可以依據製程與設計等考量而設計,本發明並不以此為限。In addition, the important parameter design range of the
請參照圖5,圖5的頭戴式顯示裝置100c與透鏡120c類似於圖4的頭戴式顯示裝置100b與透鏡120b,其主要差異在於:第五區域P5c與第六區域P6c皆為平面。即,第五區域P5c與第六區域P6c的曲率半徑R5、R6為無限大。Please refer to FIG. 5. The head-mounted
綜上所述,在本發明的實施例的頭戴式顯示裝置與透鏡中,單片透鏡的第一表面(朝向二顯示器的表面)的第一、第三區域的曲率半徑設計為定值且不為零,將透鏡的第二表面(背向二顯示器的表面)的第二、第四區域的曲率半徑設計為定值且不為零。換言之,即單一透鏡中的兩相對表面整合有不同的曲率半徑。二影像畫面的一者可依序穿透第一、第三區域並出射於透鏡而可成像於使用者的眼睛,二影像畫面的另一者則依序穿透第二、第四區域並出射於透鏡而可成像於使用者的另一隻眼睛,據此提供使用者一廣視角的影像整合畫面。由於上述的透鏡係為單片式透鏡,其避免習知多片式透鏡組中繁雜的組裝程序以及組裝程序中所造成的光線路徑誤差所導致的影像畫面失真問題,因此頭戴式顯示裝置可以以較少的組裝製程而提供給使用者品質更為良好的影像整合畫面。In summary, in the head-mounted display device and lens of the embodiment of the present invention, the curvature radii of the first and third regions of the first surface of the single lens (the surface facing the two displays) are designed to be constant and If it is not zero, the radius of curvature of the second and fourth regions of the second surface of the lens (the surface facing away from the second display) is designed to be a fixed value and not zero. In other words, two opposite surfaces in a single lens integrate different radii of curvature. One of the two image frames can sequentially penetrate the first and third regions and exit the lens to be imaged by the user's eye, and the other of the two image frames sequentially penetrates the second and fourth regions and exit The lens can be imaged on the other eye of the user, thereby providing the user with a wide-angle image integration screen. Since the above-mentioned lens is a single-piece lens, it avoids the complicated assembly process in the conventional multi-piece lens group and the image distortion caused by the light path error caused by the assembly process, so the head-mounted display device can Fewer assembly processes provide users with better quality image integration screens.
此外,當本發明的實施例中的透鏡的第一、第二表面符合以下的條件式組合1或2的其中之一時,即:條件式組合1:110毫米≤R1≤150毫米、110毫米≤R3≤150毫米、150毫米≤R2≤250毫米且150毫米≤R4≤250毫米,條件式組合2:20毫米≤R1≤45毫米、20毫米≤R3≤45毫米、150毫米≤R2≤250毫米且150毫米≤R4≤250毫米,搭配上述面形設計,二顯示器所發出的影像光束經由此透鏡後於使用者的眼睛形成的影像畫面為一廣視角的影像畫面,並且其面型設計符合大部分的眼鏡架構。因此,當使用者在穿戴眼鏡的情況下使用本發明實施例的頭戴式顯示裝置時較不容易產生不適感。In addition, when the first and second surfaces of the lens in the embodiment of the present invention meet one of the following
雖然本發明已以實施例揭露如上,然其並非用以限定本發明,任何所屬技術領域中具有通常知識者,在不脫離本發明的精神和範圍內,當可作些許的更動與潤飾,故本發明的保護範圍當視後附的申請專利範圍所界定者為準。Although the present invention has been disclosed as above with examples, it is not intended to limit the present invention. Any person with ordinary knowledge in the technical field can make some changes and modifications without departing from the spirit and scope of the present invention. The scope of protection of the present invention shall be subject to the scope defined in the appended patent application.
100、100a~100c:頭戴式顯示裝置
110、112、114:顯示器
120、120a~120c:透鏡
122、122a~122c:第一表面
124、124a~124c:第二表面
E:眼睛
E1:左眼
E2:右眼
I:光軸
P1、P1a~P1c:第一區域
P2、P2a~P2c:第二區域
P3、P3a~P3c:第三區域
P4、P4a~P4c:第四區域
P5、P5a~P5c:第五區域
P6、P6a~P6c:第六區域
S1:第一側
S2:第二側
W1、W2:光學無效區的寬度
100, 100a~100c: head-mounted
圖1是本發明的一實施例的頭戴式顯示裝置的概要示意圖。 圖2是圖1的頭戴式顯示裝置的光學模擬圖。 圖3至圖5為不同實施例的頭戴式顯示裝置的光學模擬圖。 FIG. 1 is a schematic diagram of a head-mounted display device according to an embodiment of the invention. FIG. 2 is an optical simulation diagram of the head-mounted display device of FIG. 1. 3 to 5 are optical simulation diagrams of head-mounted display devices of different embodiments.
100:頭戴式顯示裝置 100: Head-mounted display device
110、112、114:顯示器 110, 112, 114: display
120:透鏡 120: lens
122:第一表面 122: first surface
124:第二表面 124: second surface
E:眼睛 E: eyes
E1:左眼 E1: left eye
E2:右眼 E2: right eye
I:光軸 I: optical axis
P1:第一區域 P1: First area
P2:第二區域 P2: Second area
P3:第三區域 P3: Third area
P4:第四區域 P4: Fourth area
P5:第五區域 P5: Fifth area
P6:第六區域 P6: Sixth area
S1:第一側 S1: First side
S2:第二側 S2: Second side
W1:光學無效區的寬度 W1: Width of optical ineffective area
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CN206115027U (en) * | 2016-08-11 | 2017-04-19 | 成都虚拟世界科技有限公司 | Wear -type virtual reality display equipment |
TW201721230A (en) * | 2015-12-01 | 2017-06-16 | 中強光電股份有限公司 | Head mounted display device |
CN206348525U (en) * | 2016-10-17 | 2017-07-21 | 成都理想境界科技有限公司 | A kind of wear-type virtual reality display device |
TW201821861A (en) * | 2016-12-06 | 2018-06-16 | 台達電子工業股份有限公司 | Head mounted display |
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TW201721230A (en) * | 2015-12-01 | 2017-06-16 | 中強光電股份有限公司 | Head mounted display device |
CN206115027U (en) * | 2016-08-11 | 2017-04-19 | 成都虚拟世界科技有限公司 | Wear -type virtual reality display equipment |
CN206348525U (en) * | 2016-10-17 | 2017-07-21 | 成都理想境界科技有限公司 | A kind of wear-type virtual reality display device |
TW201821861A (en) * | 2016-12-06 | 2018-06-16 | 台達電子工業股份有限公司 | Head mounted display |
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