TWI810557B

TWI810557B - A human eye pupil extension device

Info

Publication number: TWI810557B
Application number: TW110116348A
Authority: TW
Inventors: 黃旭華
Original assignee: 鋐特科技股份有限公司
Priority date: 2021-05-06
Filing date: 2021-05-06
Publication date: 2023-08-01
Also published as: TW202244563A

Abstract

本發明係「一種人眼瞳孔延伸裝置」，其係藉由至少兩個沉浸式遠心目鏡單元反向對接後，形成一入瞳延伸器；該入瞳延伸器其中一端係位於人眼單一瞳孔前方，相對另一端設置有一影像顯示器。組合兩個入瞳延伸器並再各自搭配稜鏡以便彎折光路後，本案得以應用於影像穿戴設備中，達成將雙眼瞳孔與視覺延伸至該影像顯示器處，以獲取影像顯示於視線前方之作用。 The present invention is "a human eye pupil extension device", which forms an entrance pupil extender after at least two immersive telecentric eyepiece units are reversely docked; one end of the entrance pupil extender is located in front of the single pupil of the human eye , an image display is arranged at the opposite end. After combining the two entrance pupil extenders and then matching them with 稜鏡 to bend the optical path, this project can be applied to image wearable devices, achieving the extension of the pupils and vision of both eyes to the image display, so as to obtain images displayed in front of the line of sight effect.

Description

一種人眼瞳孔延伸裝置 A human eye pupil extension device

本發明一種人眼瞳孔延伸裝置，涉及一種視覺延伸技術，特別是能將人眼瞳孔之視覺位置延伸至另一影像顯示器處之技術領域者。 The invention relates to a human eye pupil extension device, which relates to a visual extension technology, in particular to the technical field capable of extending the visual position of the human eye pupil to another image display.

近年來許多廠商都在研發各式AR實境設備，其可以利用微小的穿戴設備將影像顯示於視線前方。習知該種實境設備，大致使用兩種技術：第一為光波導技術(即穿透式電腦全息片)，其能以延伸眼睛的光線路徑達到所要的目的，該種光波導方式需要與光學引擎(向光學元件投射內容的微型顯示器)配合使用，光學引擎在光波導一面輸入光柵，光線通過鏡片傳播並通過輸出光柵到達用戶眼前。這項技術大致還分成兩類：表面浮雕技術和全息光波導技術；前者是將光學元件雕刻在透鏡中(去除式)或者添加到透鏡上(添加式)，而後者是將光學元件作為全息反射鏡曝光在透鏡內部。第二種技術則為虛像激光投影技術(即反射式電腦全息片)，其係為非對稱的自由曲面投影方法。該兩種技術的共同點是都使用了全息片結構，該種全息膜必須是電腦全息，係為一種繞射光柵，其母片都要使用半導體設備製成，量產牽涉到超精密奈米壓印技術，缺點為成本極高，就製造而言也相當困難。顯見，該等技術與結構要具體商品化存有難度；即便商品化，其售價也會讓人望而卻步。 In recent years, many manufacturers are developing various AR reality devices, which can use tiny wearable devices to display images in front of the line of sight. It is known that this kind of reality equipment generally uses two technologies: the first is the optical waveguide technology (ie, the penetrating computer hologram), which can achieve the desired purpose by extending the light path of the eyes. The optical engine (a microdisplay that projects content to the optical element) is used in conjunction with the input grating on the optical waveguide side of the optical engine, and the light travels through the lens and reaches the user's eyes through the output grating. This technology can be roughly divided into two categories: surface relief technology and holographic optical waveguide technology; the former is to engrave optical elements in the lens (removal) or add to the lens (additive), while the latter is to use optical elements as holographic reflectors. The mirror exposure is inside the lens. The second technology is virtual image laser projection technology (i.e. reflective computer hologram), which is an asymmetric free-form surface projection method. Law. The common point of these two technologies is that they both use a holographic film structure. The holographic film must be a computer holographic film, which is a kind of diffraction grating. The mother film must be made of semiconductor equipment, and mass production involves ultra-precision nanometer Imprinting technology has the disadvantages of extremely high cost, and it is also quite difficult in terms of manufacturing. Obviously, it is difficult to commercialize such technologies and structures; even if they are commercialized, their prices will be prohibitive.

發明人基於前述習知技術之缺失，特以再延發成本案，期能藉本案之提出，以獲致所要達成的瞳孔視覺延伸目的。 Based on the lack of the aforementioned conventional technology, the inventor hereby postpones the issuance of this case, hoping to obtain the goal of pupil vision extension through the proposal of this case.

為改善前述實境設備中習知的光波導技術與虛像激光投影技術的缺點，本發明主要目的在於：提供一種人眼瞳孔延伸裝置，其能將電子資訊等影像以非手持之方式顯示於面前，特別是利用一種將人眼瞳孔與視覺延伸到一影像顯示器處，以達成免手持就能獲取影像之目的；藉此，取得影像只需藉由一配戴於頭部之影像穿戴設備，即能以非手持之方式取得影像於雙眼面前，甚為方便、理想、實用；本案特別更具有成本低、易於實施與商品化等優點，其售價能讓消費者願意入手。 In order to improve the shortcomings of the known optical waveguide technology and virtual image laser projection technology in the aforementioned real-world equipment, the main purpose of the present invention is to provide a device for extending the pupil of the human eye, which can display electronic information and other images in front of the person in a non-hand-held manner. , especially the use of a device that extends the pupil and vision of the human eye to an image display, so as to achieve the purpose of obtaining images without hands-on hands; thereby, obtaining images only requires an image wearable device worn on the head, that is, It is very convenient, ideal, and practical to obtain images in front of both eyes in a non-handheld manner. This case has the advantages of low cost, easy implementation and commercialization, and its price can make consumers willing to buy it.

本發明其次要目的在於：藉由該種將人眼瞳孔與視覺延伸到一影像顯示器處，即能以非手持方式取得影像的功能；本案無論是在移動行走或駕車時都能很輕易取得所需影像或電子資訊；當應用於電子語音翻譯時，能即時以非手持方式顯示翻譯文字於眼前；或進行電子搜尋、電子地圖導航時，都能即時呈現影像或相關資訊於雙眼面前，以獲致確保移動安全、增加使用便利性等諸多目的。 The second purpose of the present invention is to: by extending the pupil and vision of the human eye to an image display, the image can be obtained in a non-hand-held manner. The function of the image; this case can easily obtain the required image or electronic information whether it is walking or driving; when it is applied to electronic voice translation, it can display the translated text in front of the eyes in a non-hand-held manner in real time; or conduct electronic search, When navigating on an electronic map, images or related information can be displayed in front of both eyes in real time, so as to achieve many purposes such as ensuring mobile safety and increasing user convenience.

本發明又一目的在於：藉由該種將人眼瞳孔與視覺延伸到一影像顯示器處，不但能以非手持方式取得影像於雙眼面前的功能，同時間，雙眼還是能看見眼前環境的景像，以獲致維持既有視線之目的。 Another object of the present invention is: by extending the pupil and vision of the human eye to an image display, not only can the image be obtained in front of the eyes in a hands-free manner, but at the same time, the eyes can still see the scene of the immediate environment image, in order to achieve the purpose of maintaining the existing line of sight.

為達成上述目的，本案具體之手段為：藉由至少兩個沉浸式遠心目鏡單元反向對接後，以形成一入瞳延伸器。 In order to achieve the above purpose, the specific means of this case is to form an entrance pupil extender after at least two immersive telecentric eyepiece units are reversely docked.

其中一種較佳的實施例，該入瞳延伸器其中一端係位於人眼單一瞳孔前方，相對另一端設置有一影像顯示器。人眼瞳孔經由該入瞳延伸器能將瞳孔視覺延伸至該影像顯示器，並藉以獲取該影像顯示器之影像。 In one preferred embodiment, one end of the entrance pupil extender is located in front of the single pupil of the human eye, and an image display is arranged at the opposite end. The pupil of the human eye can extend the vision of the pupil to the image display through the entrance pupil extender, so as to obtain the image of the image display.

其中一種較佳的實施例，本案係應用於影像穿戴設備中。 One of the preferred embodiments, this case is applied to imaging wearable devices.

其中一種較佳的實施例，該影像穿戴設備係為一配戴於人體眼前之設備；更具體來說，該影像穿戴設備係為一眼鏡形態。 In one of the preferred embodiments, the image wearable device is a device worn in front of the human body; more specifically, the image wearable device is in the form of glasses.

其中一種較佳的實施例，該單一影像穿戴設備中，對應於人體之左眼與右眼，係分別配置有兩組入瞳延伸器。 One of the preferred embodiments, the single image wearable device Among them, corresponding to the left eye and right eye of the human body, two sets of entrance pupil extenders are arranged respectively.

其中一種較佳的實施例，該單一沉浸式遠心目鏡單元，包括有一柱體，該柱體本身之圓周與半徑一致，內部為透明塑膠材料，且該柱體環緣除了兩端以外呈不透光狀態；其中該柱體之一端設置有一透鏡，相對於該透鏡之另一端係為一平接面。 One of the preferred embodiments, the single immersion telecentric eyepiece unit includes a cylinder, the circumference of the cylinder itself is consistent with the radius, the interior is made of transparent plastic material, and the cylinder ring is opaque except for two ends. Light state; wherein one end of the cylinder is provided with a lens, and the other end of the lens is a flat surface.

其中一種較佳的實施例，將該兩個沉浸式遠心目鏡單元之各平接面貼合連結後，即能採反向對接以形成一入瞳延伸器，其一端係位於人眼單一瞳孔前方處，另一相對端之位置係為人眼瞳孔須延伸之位置，亦即影像顯示器之設置處。 In one of the preferred embodiments, after the flat surfaces of the two immersive telecentric eyepiece units are bonded together, they can be butted in reverse to form an entrance pupil extender, one end of which is located in front of the single pupil of the human eye The position at the other opposite end is the position where the pupil of the human eye must extend, that is, the position where the image display is set.

其中一種較佳的實施例，自該人眼瞳孔位置到平接面之距離，定義為TTL(n)；該TTL(n)與一”適眼距Le”(Eye relief)之對應成像大小存有數學條件式關係，須符合條件式；TTL(n)=[Le+ef1*n]=(1+n)*Le；其中該efl定義為透鏡焦距，該Le定義為瞳孔到透鏡前緣之距離，而n定義為塑膠材料之折射率。該透鏡為三片式膠合鏡片，結構組合分別依序是「- + -」，即焦距分配為負，正，負，藉以結合成一個透鏡組。謹先說明，「阿貝正弦條件」又稱阿貝正弦律成像原理，其為德國物理學家恩斯特．阿貝發表的光學鏡頭設計的重要成像關係式。該阿貝公式中：其中N是球形曲面物場介質的折射率 In one of the preferred embodiments, the distance from the position of the pupil of the human eye to the plane joint is defined as TTL(n); the corresponding imaging size of the TTL(n) and a "suitable eye distance Le" (Eye relief) is stored There is a mathematical conditional relationship, which must meet the conditional formula; TTL(n)=[Le+ef1*n]=(1+n)*Le; where the efl is defined as the focal length of the lens, and the Le is defined as the distance from the pupil to the front edge of the lens distance, and n is defined as the refractive index of the plastic material. The lens is a three-piece cemented lens, and the structural combination is "- + -" in sequence, that is, the focal length distribution is negative, positive, and negative, so as to be combined into a lens group. I would like to explain first that "Abbe's sine condition" is also called Abbe's sine law imaging principle, which was developed by German physicist Ernst. Abbe publishes important imaging relations for optical lens design. In the Abbe formula: where N is the refractive index of the spherical surface object field medium

N'是球形曲面像場介質的折射率 N' is the refractive index of the spherical surface image field medium

U是入射光線和光軸的夾角 U is the angle between the incident ray and the optical axis

U'是出射光線和光軸的夾角 U' is the angle between the outgoing ray and the optical axis

h是物體的高度 h is the height of the object

h'是成像的高度；當U和U'角度小的時候，上列阿貝公式簡化為：Hnu=h'N'U' h' is the height of the image; when the angle between U and U' is small, the above Abbe formula is simplified to: Hnu=h'N'U'

該公式先前亦已被義大利數學家拉格朗日發現，故又稱為拉格朗日公式；於阿貝公式中的放大率是：M_A=h'/h=NsinU/N'sinU' This formula was previously discovered by the Italian mathematician Lagrange, so it is also called the Lagrange formula; the amplification factor in Abbe's formula is: M _A =h'/h=NsinU/N'sinU'

於拉格朗日公式中放大率是：M_L=h'/h=NU/N'U' The magnification in the Lagrangian formula is: M _L =h'/h=NU/N'U'

由於：tanθ=h/Le Since: tanθ=h/Le

阿貝成像原理tanθ=h/Le=h/efl Abbe imaging principle tanθ=h/Le=h/efl

TTL=(Le+efl) TTL=(Le+efl)

tanφ=he/efl tanφ=he/efl

由阿貝成像公式tanθ=h/Le=h/efl得出efl=Le According to the Abbe imaging formula tanθ=h/Le=h/efl, efl=Le

若於空氣中則TTL=2*Le If in air, TTL=2*Le

假設透鏡後端的折射率n在塑膠中 Assume that the refractive index n at the rear end of the lens is in the plastic

得出：TTL=[Le+efl*n]=(1+n)*Le Get: TTL=[Le+efl*n]=(1+n)*Le

其中he定義為人的瞳孔一半大小，θ定義為人眼視角一半大小，h定義為影像顯示器(OLED)一半大小，efl定義為透鏡焦距，Le定義為瞳孔到透鏡前緣之距離。 Where he is defined as half the size of the human pupil, θ is defined as half the size of the human eye's viewing angle, h is defined as half the size of the video display (OLED), efl is defined as the focal length of the lens, and Le is defined as the distance from the pupil to the front edge of the lens.

定義θ為瞳孔看出去的光線角度，假設：he=1.5 Define θ as the angle of light seen by the pupil, assuming: he=1.5

h=10 h=10

Le=20 Le=20

θ=20° tanθ=1/3 θ=20° tanθ=1/3

EFL=Le=20 n=1.5 EFL=Le=20 n=1.5

在薄透鏡的情況下(假設透鏡厚度0) In the case of a thin lens (assuming lens thickness 0)

TTL(於空氣中)=2*20=40mm TTL(in air)=2*20=40mm

TTL(n)=2.5*20=50mm TTL(n)=2.5*20=50mm

該沉浸式遠心目鏡單元，得於柱體結構中增設有一稜鏡，藉以將柱體改變設計成彎折狀。該稜鏡能用以彎折光路，利用光路的角度互補，以便使該光路進行彎折至所需位置。 The immersive telecentric eyepiece unit can be provided with a bulge in the cylindrical structure, so as to change the design of the cylindrical body into a bent shape. The beam can be used to bend the light path, and the angle of the light path is complementary, so that the light path can be bent to a desired position.

該設置有稜鏡之沉浸式遠心目鏡單元，係應用於人眼視覺之瞳孔延伸；例如實施為適合人臉外型之眼鏡配戴用。 The immersive telecentric eyepiece unit equipped with a rim is applied to the pupil extension of human vision; for example, it is implemented to wear glasses suitable for the shape of the human face.

該設置有稜鏡之沉浸式遠心目鏡單元，其角度互補光路存有數學條件式可以對應：θ1+θ2=90度，θ定義為稜鏡之夾角；TTL(n)=TTL_1(n)+TTL_2(n)；其中自該人眼瞳孔位置到平接面之距離定義為TTL(n)，該TTL_1(n)定義為透鏡到稜鏡之距離，該TTL_2(n)定義為稜鏡到平接面之距離。 This is equipped with an immersive telecentric eyepiece unit whose angle Complementary optical paths have mathematical conditional expressions that can correspond to: θ1+θ2=90 degrees, θ is defined as the angle between the angles; TTL(n)=TTL_1(n)+TTL_2(n); The distance between the surfaces is defined as TTL(n), the TTL_1(n) is defined as the distance from the lens to the surface, and the TTL_2(n) is defined as the distance from the surface to the plane.

由於該彎折光路及稜鏡會遇到全反射的邊界情況，因此需要在稜鏡上製作鍍膜，該邊界條件與鍍膜條件存有數學條件關係式；此鍍膜的折射率必需滿足n’>nsin(ω)才能發生全反射，該n’定義為鍍上的材質係數。由於：tanφ=he/efl=1.5/20=0.075 Since the bent optical path and the rim will encounter the boundary condition of total reflection, it is necessary to make a coating on the rim. There is a mathematical conditional relationship between the boundary condition and the coating condition; the refractive index of the coating must satisfy n'>nsin (ω) Total reflection can occur, and the n' is defined as the material coefficient of the plating. Because: tanφ=he/efl=1.5/20=0.075

Φ=0.075*180/3.14=4.29(in air) Φ=0.075*180/3.14=4.29(in air)

Φ=[0.075*180/3.14]/n=2.7(in n=1.59) Φ=[0.075*180/3.14]/n=2.7(in n=1.59)

ω定義為入射角 ω is defined as the angle of incidence

θ定義為稜鏡角度 θ is defined as the angle

n定義為稜鏡材料折射率 n is defined as the refractive index of the material

n’定義為稜鏡背脊面上鍍膜折射率 n' is defined as the refractive index of the coating on the ridge surface

ω=θ±Φ ω=θ±Φ

基於遵守折射定律(snell’s law) Based on obeying the law of refraction (snell's law)

nsin(ω)<n’才會發生全反射。 nsin(ω)<n' will cause total reflection.

該沉浸式遠心目鏡單元總長TTL與適眼距Le，其中眼睛半視角與影像顯示器(OLED)的大小h，存有對應關係之條件式如下：TTL(air)=2*Le The total length of the immersive telecentric eyepiece unit is TTL and the eye distance Le, wherein the half angle of view of the eye and the size h of the image display (OLED) are relatively The conditional expression of the relationship is as follows: TTL(air)=2*Le

θ=arctan(h/Le) θ=arctan(h/Le)

該影像顯示器(OLED)可以控制入瞳大小he以控制影像顯示器(OLED)發光角度調節亮度，其存有數學關係條件式如下：tanφ=he/efl其中：tanθ=h/Le The image display (OLED) can control the size of the entrance pupil he to control the light emitting angle of the image display (OLED) to adjust the brightness. The mathematical relationship conditional formula is as follows: tanφ=he/efl where: tanθ=h/Le

阿貝成像公式tanθ=h/Le=h/efl Abbe imaging formula tanθ=h/Le=h/efl

TTL=(Le+efl) TTL=(Le+efl)

tanφ=he/efl tanφ=he/efl

由阿貝成像公式tanθ=h/Le=h/efl得知efl=Le According to the Abbe imaging formula tanθ=h/Le=h/efl, we know that efl=Le

TTL=2*Le TTL=2*Le

θ=arctan(h/Le) θ=arctan(h/Le)

he定義為瞳孔一半大小 he is defined as half the size of the pupil

θ定義為人眼視角一半大小 θ is defined as half the size of the human eye angle of view

h定義為影像顯示器(OLED)一半大小 h is defined as half the size of the video display (OLED)

efl定義為透鏡焦距 efl is defined as the focal length of the lens

Le定義為瞳孔到透鏡前緣之距離。 Le is defined as the distance from the pupil to the front edge of the lens.

當該人眼瞳孔延伸裝置實施為一眼鏡形態時，其包含整體光路寬度，含兩眼的瞳孔延伸裝置，其與人眼位置為 2*[2*TTL_2(n)+W]；其中，該TTL_2(n)定義為稜鏡到平接面之距離；該W定義為雙眼瞳孔的一半距離。 When the human eye pupil stretching device is implemented as a glasses form, it includes the overall optical path width, including the pupil stretching device of both eyes, and its position with the human eye is 2*[2*TTL_2(n)+W]; Wherein, the TTL_2(n) is defined as the distance from the flat surface to the plane joint; the W is defined as half the distance between the pupils of both eyes.

當該人眼瞳孔延伸裝置實施為一眼鏡形態時，於該光路中設置有空氣間隙做為機械折疊空間，並能用以微調公差空間，可包含複數種狀態結構。其中一種，係於透鏡與稜鏡間設置有一空氣間隙，藉以補償公差。 When the human eye pupil extension device is implemented in the form of glasses, an air gap is set in the light path as a mechanical folding space, which can be used to fine-tune the tolerance space, and can include multiple state structures. In one of them, an air gap is set between the lens and the lens to compensate for the tolerance.

1:沉浸式遠心目鏡單元 1: Immersive telecentric eyepiece unit

11:柱體 11: Cylinder

12:透鏡 12: Lens

13:平接面 13: Flat joint

14:稜鏡 14: 稜鏡

18:空氣間隙 18: Air gap

19:機械折疊空間 19: Mechanical folding space

2:入瞳延伸器 2: Entrance pupil extender

3:眼鏡 3: Glasses

A:瞳孔 A: Pupil

B:影像顯示器 B: video display

第一圖：係為本發明沉浸式遠心目鏡單元之結構示意圖；第二圖：係為本發明將兩個沉浸式遠心目鏡單元反向對接後形成入瞳延伸器之示意圖；第三圖：係為本發明入瞳延伸器之原理示意圖；第四圖：係為本發明入瞳延伸器搭配稜鏡使用之示意圖；第五圖：係為本發明入瞳延伸器搭配稜鏡使用之另一示意圖；第六圖：係為本發明入瞳延伸器搭配稜鏡使用之角度調變示意圖；第七圖：係為本發明兩組入瞳延伸器搭配稜鏡使用之示意圖；第八圖：係在說明本發明稜鏡鍍膜之示意圖；第九圖：係為本發明稜鏡角度調變之示意圖；第十圖：係為本發明稜鏡角度調變之另一示意圖；第十一圖：係為本發明入瞳延伸器結合影像顯示器(OLED )之結構示意圖；第十二圖：係在說明本發明整體光路寬度之示意圖；第十三圖：係為本發明中設置有空氣間隙之示意圖；第十四圖：係為本發明中設置有機械折疊空間之示意圖；第十五圖：係為本發明具體實施之結構部份分解示意圖；第十六圖：係為本發明具體實施之結構外觀示意圖；第十七圖：係為本發明具體實施之結構部份分解示意圖。 The first figure: is the schematic diagram of the structure of the immersive telecentric eyepiece unit of the present invention; the second figure: is the schematic diagram of the entrance pupil extender formed after the reverse docking of two immersive telecentric eyepiece units of the present invention; the third figure: the system It is a schematic diagram of the principle of the entrance pupil extender of the present invention; the fourth figure is a schematic diagram of the use of the entrance pupil extender of the present invention in combination with 稜鏡; the fifth figure is another schematic diagram of the use of the entrance pupil extender of the present invention in combination with 稜鏡Figure 6: It is a schematic diagram of the angle adjustment of the entrance pupil extender of the present invention with the use of 稜鏡; Figure 7: It is a schematic diagram of the use of two sets of entrance pupil extenders of the present invention with the use of 稜鏡; A schematic diagram illustrating the coating of the present invention; the ninth figure: a schematic diagram of the angle modulation of the present invention; the tenth figure: another schematic diagram of the angle modulation of the present invention; the eleventh figure: The entrance pupil extender of the present invention is combined with an image display (OLED) ) structure schematic diagram; the twelfth figure: is a schematic diagram illustrating the overall optical path width of the present invention; the thirteenth figure: is a schematic diagram of the air gap provided in the present invention; the fourteenth figure: is provided with the present invention Schematic diagram of the mechanical folding space; Figure 15: a schematic diagram of the structural part of the embodiment of the present invention; Figure 16: a schematic view of the appearance of the structure of the embodiment of the present invention; Figure 17: the embodiment of the present invention Schematic diagram of the partial decomposition of the structure of the implementation.

茲謹就本發明一種人眼瞳孔延伸裝置」其結構組成，及所能產生的功效，配合圖式，舉一本案之較佳實施例詳細說明如下。 With regard to the structure and composition of the human eye pupil extension device of the present invention, as well as the functions it can produce, and in conjunction with the drawings, a preferred embodiment of the case will be described in detail as follows.

首請參閱第一圖與第二圖所示，本案該人眼瞳孔延伸裝置，包括有複數個沉浸式遠心目鏡單元1，經將兩沉浸式遠心目鏡單元1反向對接後，以形成一入瞳延伸器2。其中該入瞳延伸器2其中一端係位於人眼單一瞳孔A前方，相對另一端設置有一影像顯示器B。人眼瞳孔處A經由該入瞳延伸器2能將瞳孔視覺延伸至該影像顯示器B，並藉以獲取該影像顯示器B之影像。本案係能應用於一影像穿戴設備中，該影像穿戴設備係為一配戴於人體眼前之設備；更具體來說，該影像穿戴設備係為一眼鏡形態。該單一影像穿戴設備中，對應於人體之左眼與右眼，係分別配置有兩組入瞳延伸器2。 First please refer to the first and second figures, the human eye pupil extension device in this case includes a plurality of immersive telecentric eyepiece units 1, after the two immersive telecentric eyepiece units 1 are reversely docked to form an entrance Pupil extender2. One end of the entrance pupil extender 2 is located in front of the single pupil A of the human eye, and an image display B is arranged at the opposite end. The pupil A of the human eye can extend the pupil vision to the image display B through the entrance pupil extender 2, so as to obtain the image of the image display B. This case can be applied to a wearable image device, which is a device worn in front of the human body; more specifically, the wearable image device is in the form of glasses. In the single-image wearable device, two sets of entrance pupil extenders 2 are respectively arranged corresponding to the left eye and the right eye of the human body.

該單一沉浸式遠心目鏡單元1，包括有一柱體11，該柱體本身之圓周與半徑一致，內部為透明塑膠材料，且該柱體11環緣除了兩端以外呈不透光狀態；其中該柱體之一端設置有一透鏡12，相對於該透鏡之另一端係為一平接面13。經將該兩個沉浸式遠心目鏡單元1之各平接面13貼合連結後(如第二圖)，即能採反向對接以形成一入瞳延伸器2。 This single immersion type telecentric eyepiece unit 1 includes a cylinder 11, the circumference of the cylinder itself is consistent with the radius, the inside is a transparent plastic material, and the ring edge of the cylinder 11 is in an opaque state except for two ends; wherein the A lens 12 is arranged at one end of the cylinder, and a flat surface 13 is formed opposite to the other end of the lens. After bonding and connecting the flat joint surfaces 13 of the two immersive telecentric eyepiece units 1 (as shown in the second figure), they can be reversely butted to form an entrance pupil extender 2 .

請再配合第三圖，自該人眼瞳孔位置到平接面之距離，定義為TTL(n)；該TTL(n)與一”適眼距Le”(Eye relief)之對應成像大小存有數學條件式關係，須符合條件式：TTL(n)=[Le+efl*n]=(1+n)*Le；其中該efl定義為透鏡焦距，該Le定義為瞳孔到透鏡前緣之距離，而n定義為塑膠材料之折射率。該透鏡為三片式膠合鏡片，結構組合分別依序是「- + -」，即焦距分配為正，負，正，藉以結合成一個透鏡組。 Please cooperate with the third picture, the distance from the position of the pupil of the human eye to the plane contact surface is defined as TTL(n); the corresponding imaging size of the TTL(n) and a "suitable eye distance Le" (Eye relief) exists The mathematical conditional relationship must meet the conditional formula: TTL(n)=[Le+efl*n]=(1+n)*Le; where the efl is defined as the focal length of the lens, and the Le is defined as the distance from the pupil to the front edge of the lens , and n is defined as the refractive index of the plastic material. The lens is a three-piece cemented lens, and the structural combination is "- + -" in sequence, that is, the focal length is allocated as positive, negative, and positive, so as to be combined into a lens group.

由於：tanθ=h/Le Since: tanθ=h/Le

阿貝成像公式tanθ=h/Le=h/efl Abbe imaging formula tanθ=h/Le=h/efl

TTL=(Le+efl) TTL=(Le+efl)

tanφ=he/efl tanφ=he/efl

若於空氣中則TTL=2*Le If in air, TTL=2*Le

得出：TTL=[Le+efl*n]=(1+n)*Le Get: TTL=[Le+efl*n]=(1+n)*Le

定義θa為瞳孔看出去的光線角度，假設：he=1.5 Define θa as the angle of light seen by the pupil, assuming: he=1.5

h=10 h=10

Le=20 Le=20

θa=20° tanθa=1/3 θa=20° tanθa=1/3

EFL=Le=20 n=1.5 EFL=Le=20 n=1.5

TTL(於空氣中)=2*20=40mm TTL(in air)=2*20=40mm

TTL(n)=2.5*20=50mm TTL(n)=2.5*20=50mm

又如第四圖、第五圖，該沉浸式遠心目鏡單元1，得於結構中增設有一稜鏡14，藉以將柱體11改變設計成彎折狀。該稜鏡能用以彎折光路，利用光路的角度互補，以便使該光路進行彎折至所需位置。該設置有稜鏡14之沉浸式遠心目鏡單元1，其角度互補光路存有數學條件式可以對應：θb1+θb2=90度(如第六圖、第七圖)，θb定義為稜鏡14之夾角；TTL(n)=TTL_1(n)+TTL_2(n)；其中自該人眼瞳孔位置到平接面13之距離定義為TTL(n)，該TTL_1(n)定義為透鏡12到稜鏡14之距離，該TTL_2(n)定義為稜鏡14到平接面13之距離。由於該彎折光路及稜鏡14會遇到全反射的邊界情況，因此需要在稜鏡14上製作鍍膜，該邊界條件與鍍膜條件存有數學條件關係式；此鍍膜的折射率必需滿足n’>nsin(ω)才能發生全反射，該n’定義為鍍上的材質係數。由於：tanφ=he/efl=1.5/20=0.075 As shown in Figures 4 and 5, the immersive telecentric eyepiece unit 1 may be provided with a scallop 14 in the structure, so as to change the design of the cylinder 11 into a bent shape. The beam can be used to bend the light path, and the angle of the light path is complementary, so that the light path can be bent to a desired position. The immersion telecentric eyepiece unit 1 equipped with 訜鏡14 has a mathematical conditional formula for its angle complementary optical path: θb1+θb2=90 degrees (as shown in the sixth and seventh figures), and θb is defined as the distance between the 稜鏡14 Angle; TTL(n)=TTL_1(n)+TTL_2(n); wherein the distance from the position of the pupil of the human eye to the plane joint 13 is defined as TTL(n), and the TTL_1(n) is defined as TTL_2(n) is defined as the distance from the lens 12 to the contact surface 14, and the TTL_2(n) is defined as the distance from the contact surface 13 to the contact surface 13. Since the bent optical path and the 稜鏡 14 will encounter the boundary condition of total reflection, it is necessary to make a coating on the 稜鏡 14. There is a mathematical conditional relationship between the boundary condition and the coating condition; the refractive index of the coating must satisfy n' > nsin(ω) can have total reflection, and the n' is defined as the material coefficient of the plating. Because: tanφ=he/efl=1.5/20=0.075

tanφ

Φ tanφ

Φ

Φ=0.075*180/3.14=4.29(in air) Φ=0.075*180/3.14=4.29(in air)

Φ=[0.075*180/3.14]/n=2.7(in n=1.59) Φ=[0.075*180/3.14]/n=2.7(in n=1.59)

ω定義為入射角 ω is defined as the angle of incidence

θ定義為稜鏡角度 θ is defined as the angle

ω=θ±Φ ω=θ±Φ

nsin(ω)<n’才會發生全反射(如第八圖、第九圖與第十圖)。 nsin(ω)<n' will cause total reflection (such as the eighth, ninth and tenth pictures).

請參考第十一圖，該沉浸式遠心目鏡單元總長TTL與適眼距Le，其中眼睛半視角與影像顯示器(OLED)的大小h，存有對應關係之條件式如下：TTL(air)=2*Le Please refer to Figure 11, the total length of the immersive telecentric eyepiece unit TTL and the eye distance Le, among which the eye half angle of view and the size h of the image display (OLED), the conditional expression for the corresponding relationship is as follows: TTL(air)=2 *Le

θc=arctan(h/Le) θc=arctan(h/Le)

該影像顯示器(OLED)可以控制入瞳大小he以控制影像顯示器(OLED)發光角度調節亮度，其存有數學關係條件式如下：tanφ=he/efl其中：tanθc=h/Le The image display (OLED) can control the entrance pupil size he to control the light emitting angle of the image display (OLED) to adjust the brightness, and the mathematical relationship conditional formula is as follows: tanφ=he/efl where: tanθc=h/Le

阿貝成像公式tanθc=h/Le=h/efl Abbe imaging formula tanθc=h/Le=h/efl

TTL=(Le+efl) TTL=(Le+efl)

tanφ=he/efl tanφ=he/efl

TTL=2*Le TTL=2*Le

θc=arctan(h/Le) θc=arctan(h/Le)

he定義為瞳孔一半大小 he is defined as half the size of the pupil

θc定義為人眼視角一半大小 θc is defined as half the size of the human eye angle of view

efl定義為透鏡焦距 efl is defined as the focal length of the lens

其中一種較佳的實施例，當該人眼瞳孔延伸裝置實施為一眼鏡形態時，其包含整體光路寬度，含兩眼的瞳孔延伸裝置，其與人眼位置為2*[2*TTL_2(n)+W]；其中，該TTL_2(n)定義為稜鏡到平接面之距離；該W定義為雙眼瞳孔的一半距離(請參考第十二圖)。 In one of the preferred embodiments, when the human eye pupil stretching device is implemented in the form of glasses, it includes the overall optical path width, including the pupil stretching device of both eyes, and its position with the human eye is 2*[2*TTL_2(n )+W]; wherein, the TTL_2(n) is defined as the distance from the flat joint to the flat surface; the W is defined as the distance between the pupils of both eyes Half the distance (please refer to Figure 12).

其中一種較佳的實施例，當該人眼瞳孔延伸裝置實施為一眼鏡形態時，於該光路中設置有空氣間隙做為機械折疊空間(如第十三圖)，並能用以微調公差空間，可包含複數種狀態結構。其中一種，係於透鏡與稜鏡間設置有一空氣間隙，藉以補償公差(如第十四圖)。 In one of the preferred embodiments, when the human eye pupil extension device is implemented in the form of glasses, an air gap is set in the optical path as a mechanical folding space (as shown in Figure 13), and can be used to fine-tune the tolerance space , which can contain multiple state structures. One of them is to set an air gap between the lens and the lens to compensate the tolerance (as shown in Fig. 14).

再請參考第十五圖、第十六圖與第十七圖，係為依據前述原理技術所實施之本案結構示意圖。其為一人體穿戴裝置，具體實施成一眼鏡3態樣。結構具體包括有影像顯示器B、透鏡12與入瞳延伸器2等結構，鏡腳具彎折作用，以縮小收合體積。 Please refer to Fig. 15, Fig. 16 and Fig. 17, which are schematic diagrams of the structure of this case implemented according to the aforementioned principles and technologies. It is a body-worn device, which is embodied in the form of a pair of glasses 3 . The structure specifically includes structures such as an image display B, a lens 12, and an entrance pupil extender 2. The temples have a bending function to reduce the volume of the fold.

綜上所述，本案「一種人眼瞳孔延伸裝置」，其技術內容完全符合發明專利之取得要件。本案在產業上確實得以利用，於申請前未曾見於刊物或公開使用，且非為公眾所知悉之技術。再者，本案有效解決先前技術中長期存在的問題並達成相關使用者與消費者長期的需求，得佐證本新型並非能輕易完成。本案富具專利法規定之「產業利用性」、「新穎性」與「進步性」等要件，爰依法提請專利，懇請鈞局詳查，並儘早為准予專利之審定，以保護申請人之智慧財產權，俾勵創新。 To sum up, the technical content of this case "a device for extending the pupil of the human eye" fully complies with the requirements for obtaining an invention patent. This case has indeed been used in the industry, and it has not been published or publicly used before the application, and it is not a technology known to the public. Furthermore, this case effectively solves the long-standing problems in the prior art and meets the long-term needs of relevant users and consumers, which proves that this new model cannot be easily completed. This case is full of the elements of "industrial utilization", "novelty" and "progressiveness" stipulated in the Patent Law. I would like to apply for a patent according to the law. I sincerely ask the Bureau to investigate carefully and approve the patent approval as soon as possible to protect the applicant's wisdom. Property rights to encourage innovation.

本發明已藉由上述之實施例及變化例來詳加描述。然而，熟習該項技術者當了解的是，本發明之所有的實施例在此僅為例示性而非為限制性，亦即，在不脫離本發明實質精神及範圍之內，基於上述所述及之其他變化例及修正例均為本發明所涵蓋，本發明係由後附之申請專利範圍所加以界定。 The present invention has been described in detail by the above-mentioned embodiments and variations. However, those skilled in the art should understand that all aspects of the present invention The embodiments here are only illustrative rather than restrictive, that is, without departing from the spirit and scope of the present invention, other variations and modifications based on the above-mentioned descriptions are all covered by the present invention, and the present invention The invention is defined by the scope of the attached patent application.

12:透鏡 12: Lens

2:入瞳延伸器 2: Entrance pupil extender

3:眼鏡 3: Glasses

B:影像顯示器 B: video display

Claims

一種人眼瞳孔延伸裝置，係由至少兩個沉浸式遠心目鏡單元反向對接後組成一入瞳延伸器；該入瞳延伸器其中一端係位於人眼單一瞳孔前方，相對另一端設置有一影像顯示器；其中該單一沉浸式遠心目鏡單元包括有一柱體，該柱體本身之圓周與半徑一致；該柱體之一端設置有一透鏡，相對於該透鏡之另一端係為一平接面。 A device for extending the pupil of the human eye, which is composed of at least two immersive telecentric eyepiece units reversely docked to form an entrance pupil extender; one end of the entrance pupil extender is located in front of the single pupil of the human eye, and the opposite end is provided with an image display ; Wherein the single immersion type telecentric eyepiece unit includes a cylinder, the circumference of the cylinder itself is consistent with the radius; one end of the cylinder is provided with a lens, and the other end of the lens is a flat surface.

如申請專利範圍第1項所述一種人眼瞳孔延伸裝置，其中該柱體內部為透明塑膠材料，且該柱體環緣除了兩端以外呈不透光狀態。 A human eye pupil extension device as described in item 1 of the scope of the patent application, wherein the interior of the cylinder is made of transparent plastic material, and the rim of the cylinder is opaque except for two ends.

如申請專利範圍第1項所述一種人眼瞳孔延伸裝置，其中該人眼瞳孔延伸裝置係應用於一影像穿戴設備中。 A human eye pupil stretching device as described in item 1 of the scope of the patent application, wherein the human eye pupil stretching device is applied in a video wearable device.

如申請專利範圍第3項所述一種人眼瞳孔延伸裝置，其中該影像穿戴設備係為一配戴於人體眼前之設備，其係為一眼鏡。 A human eye pupil extension device as described in item 3 of the scope of the patent application, wherein the image wearable device is a device worn in front of the human body, which is a pair of glasses.

如申請專利範圍第3項所述一種人眼瞳孔延伸裝置，其中該影像穿戴設備中，對應於人體之左眼與右眼，係分別配置有兩組入瞳延伸器。 A human eye pupil extension device as described in item 3 of the scope of the patent application, wherein in the image wearable device, corresponding to the left eye and right eye of the human body, are equipped with There are two sets of entrance pupil extenders.

如申請專利範圍第1項所述一種人眼瞳孔延伸裝置，其中該入瞳延伸器於該透鏡外端係為人眼瞳孔位置；自該人眼瞳孔位置到平接面之距離，定義為TTL(n)；該TTL(n)與一適眼距Le之對應成像大小存有數學條件式關係，須符合條件式：TTL(n)=[Le+efl*n]=(1+n)*Le；其中該efl定義為透鏡焦距，該Le定義為瞳孔到透鏡前緣之距離，而n定義為塑膠材料之折射率。 A human eye pupil extension device as described in Item 1 of the scope of the patent application, wherein the entrance pupil extender is at the position of the human eye pupil at the outer end of the lens; the distance from the human eye pupil position to the plane joint is defined as TTL (n); There is a mathematical conditional relationship between the TTL(n) and the corresponding image size of a suitable eye distance Le, which must meet the conditional formula: TTL(n)=[Le+efl*n]=(1+n)* Le; wherein the efl is defined as the focal length of the lens, the Le is defined as the distance from the pupil to the front edge of the lens, and n is defined as the refractive index of the plastic material.

如申請專利範圍第1項所述一種人眼瞳孔延伸裝置，其中該沉浸式遠心目鏡單元，於該柱體結構中增設有一稜鏡，藉以將柱體改變設計成彎折狀；該稜鏡能用以彎折光路，利用光路的角度互補，以便使該光路進行彎折至所需位置。 A human eye pupil extension device as described in item 1 of the scope of the patent application, in which the immersive telecentric eyepiece unit is provided with a 稜鏡 in the cylindrical structure, so as to change the design of the cylindrical body into a bent shape; the 稜鏡 can It is used to bend the light path, and the angles of the light path are complementary, so that the light path can be bent to a desired position.

如申請專利範圍第7項所述一種人眼瞳孔延伸裝置，其中該稜鏡上製作有一鍍膜。 A human eye pupil extension device as described in item 7 of the scope of the patent application, wherein a coating is formed on the pupil.

如申請專利範圍第1項所述一種人眼瞳孔延伸裝置，其中該沉浸式遠心目鏡單元總長TTL與適眼距Le，其中眼睛半視角與影像顯示器(OLED)的大小h，存有對應關係之條件式如下：TTL(air)=2*Le，θ=arctan(h/Le)；該影像顯示器 (OLED)可以控制入瞳大小he以控制影像顯示器(OLED)發光角度調節亮度，其存有數學關係條件式如下：tanφ=he/efl；其中：tanθ=h/Le，阿貝成像公式tanθ=h/Le=h/efl，TTL=(Le+efl)，tanφ=he/efl；由阿貝成像公式tanθ=h/Le=h/efl得知efl=Le，TTL=2*Le，θ=arctan(h/Le)；該he定義為瞳孔一半大小，θ定義為人眼視角一半大小，h定義為影像顯示器(OLED)一半大小，efl定義為透鏡焦距，Le定義為瞳孔到透鏡前緣之距離。 A human eye pupil extension device as described in item 1 of the scope of the patent application, wherein the total length of the immersive telecentric eyepiece unit is TTL and the eye distance Le, and there is a corresponding relationship between the half angle of view of the eye and the size h of the image display (OLED). The conditional formula is as follows: TTL(air)=2*Le, θ=arctan(h/Le); the video display (OLED) can control the entrance pupil size he to control the light-emitting angle of the image display (OLED) to adjust the brightness. The mathematical relationship conditional formula is as follows: tanφ=he/efl; where: tanθ=h/Le, Abbe imaging formula tanθ= h/Le=h/efl, TTL=(Le+efl), tanφ=he/efl; from the Abbe imaging formula tanθ=h/Le=h/efl, we know that efl=Le, TTL=2*Le, θ= arctan(h/Le); the he is defined as half the size of the pupil, θ is defined as half the size of the human eye angle of view, h is defined as half the size of the image display (OLED), efl is defined as the focal length of the lens, and Le is defined as the distance from the pupil to the front edge of the lens distance.

如申請專利範圍第1項所述一種人眼瞳孔延伸裝置，其中該人眼瞳孔延伸裝置實施為一眼鏡形態時，其包含整體光路寬度，含兩眼的瞳孔延伸裝置，其與人眼位置為2*[2*TTL_2(n)+W]；其中，該TTL_2(n)定義為稜鏡到平接面之距離；該W定義為雙眼瞳孔的一半距離。 A human eye pupil extension device as described in item 1 of the scope of the patent application, wherein when the human eye pupil extension device is implemented in the form of glasses, it includes the overall optical path width, including the pupil extension device of both eyes, and its position with the human eye is 2*[2*TTL_2(n)+W]; Wherein, the TTL_2(n) is defined as the distance from the flat surface to the plane joint; the W is defined as half the distance between the pupils of both eyes.

如申請專利範圍第1項所述一種人眼瞳孔延伸裝置，其中該人眼瞳孔延伸裝置實施為一眼鏡形態時，於其光路中設置有一空氣間隙做為機械折疊空間，並能用以微調公差空間，可包含複數種狀態結構。 A human eye pupil extension device as described in item 1 of the scope of the patent application, wherein when the human eye pupil extension device is implemented in the form of glasses, an air gap is provided in its optical path as a mechanical folding space, and can be used for fine-tuning tolerances Space, which can contain multiple state structures.