TW200403596A - Optical devices and optical reading apparatus - Google Patents

Optical devices and optical reading apparatus Download PDF

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Publication number
TW200403596A
TW200403596A TW092122094A TW92122094A TW200403596A TW 200403596 A TW200403596 A TW 200403596A TW 092122094 A TW092122094 A TW 092122094A TW 92122094 A TW92122094 A TW 92122094A TW 200403596 A TW200403596 A TW 200403596A
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Taiwan
Prior art keywords
light
reading
reading device
light source
information
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TW092122094A
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Chinese (zh)
Inventor
Chihiro Ueki
Masato Nishizawa
Tomoyuki Tsurube
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Matsushita Electric Ind Co Ltd
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Priority claimed from JP2002246546A external-priority patent/JP2004086553A/en
Priority claimed from JP2002246545A external-priority patent/JP2004086552A/en
Application filed by Matsushita Electric Ind Co Ltd filed Critical Matsushita Electric Ind Co Ltd
Publication of TW200403596A publication Critical patent/TW200403596A/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12—Fingerprints or palmprints
    • G06V40/13—Sensors therefor
    • G06V40/1324—Sensors therefor by using geometrical optics, e.g. using prisms

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Human Computer Interaction (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Image Input (AREA)

Abstract

This invention relates to an optical device comprising: a first inclined face for reflecting a first light; a second inclined face for reflecting a second light; and a reading face adjacent to the first inclined face and the second inclined face, reflecting partially the total reflection light of the first light from the first inclined face and reflecting totally the total reflection light of the second light from the second inclined face so as to read the optical information of an object to be pictured.

Description

玖、發明說明： 【發明所屬·^技術領域3 技術領域 本發明係有關於一種可讀取以文字或圖形等之濃淡來 顯示之資訊及以指紋等之凹凸來顯示之資訊的光學元件及 讀取裝置。 I：先前技術3 背景技術 近年來，隨著行動電話裝置或PDA (Personal Digital Assistant)等行動資訊裝置逐漸高性能化，遂有提案各種具 有本人認證裝置之行動資訊裝置。 舉例言之，有提案一技術，係於行動資訊裝置搭載光 學讀取裝置’可拍攝使用者之指紋圖案影像而以該影像進 行本人認證’同時並可藉讀取裝置來拍攝文字或圖形等文 件資訊（如’日本專利公報特開2〇〇1_2832〇7號）。 針對丽述習知技術中進而說明。第21圖係用以說明習 知讀取裝置之動作原理之圖。 如第21圖所示，習知讀取裝置中，設置有一可與使用 者之手指或文件等被攝體201接觸之光學元件202。包夾光 學兀件202 ’在與被攝體2〇1相反側設置光源部。光源部 203配置成以射入角θ a射入光學元件202與被攝體2〇1接觸 之面202a。 又，拍攝元件204所配置之位置係可使自光源部203射 入光學70件2G2之光受光光學元件观與被攝體接觸之面 200403596 202a之反射光成分。而，此時之受光角0 b與射入角（9 a相 等。 習知讀取裝置於該構成下，若以射入角0 a於光學元件 200與被攝體201接觸之面202a中產生全反射之角度作為臨 5 界角（deg)時，滿足20° &lt; 0a〈臨界角之關係。 前述習知讀取裝置中，就文字或圖形等以濃淡來顯示 之文件資訊而言，係可於光學元件202與被攝體201接觸之 面202a的散亂光中讀取拍攝元件204方向之成分來拍攝影 像。又，就指紋等以凹凸來顯示之資訊而言，則可於光學 10 元件202與被攝體201接觸之面202a中讀取反射光成分（相 當於凹部）來拍攝影像。 惟，前述構成中，由於係以未滿臨界角之射入角&lt;9 a對 與手指接觸之面射入光線，因此會產生一課題，即，指紋 之凹部分與光學元件接觸之部分光線散亂，且該散亂光會 15 再度射入光學元件，而使拍攝之影像對比降低。 故，難以分析拍到之指紋影像來獲得本人認證所需之 資訊。 I：發明内容】 發明揭示 20 有鑑於前述課題，本發明之目的在於提供一種無論是 指紋等以凹凸顯示之資訊及文字或圖形等以濃淡顯示之資 訊皆可獲得良好影像之光學元件及讀取裝置。 本發明之光學元件之特徵在於，包含有：一第1傾斜 面，係可使第1光線反射者；一第2傾斜面，係可使第2光線 反射者；及，I 〆 ^ ，取面，係鄰接第1傾斜面與第2傾斜面， 而可使光線於第1傾斜面之全反射光部分反射，並使第2 光線於第2傾斜面之全反射光全反射後，讀取被攝 資訊者。 千 〜藉該構成，可以第1光線拍攝文字或圖形等以濃淡顯示 之資λ並以第2光線拍攝指紋等以凹凸顯示之資訊。又， 由於可藉第2光線之第2傾斜面之反射光全反射，拍攝指紋 等以凹凸顯示之資訊，因此可拍攝出凹部分亮度低且對比 佳之影像。 接著，本發明之讀取裝置之特徵在於，包含有：一第1 光源；，一第2光源部；一第丨傾斜面，係可使來自第丨光源 部之光線全反射者；—第2傾斜面，係可使來自第2光源部 之光線全反射者；一讀取面，係可讀取被寫體之光學資訊， 並没置成鄰接第1傾斜面與第2傾斜面，而可使於第丨傾斜面 全反射之來自第1光源部之光線與於第2傾斜面全反射之來 自第2光源部之光線射入者；及，一拍攝部，係可拍攝讀取 面之散亂光者。 藉該構成，可以來自第1光源部之光線來拍攝文字或圖 形等以濃淡顯示之資訊，並以來自第2光源部之第2光線拍 攝指紋等以凹凸顯示之資訊。 再者，、亦可使第1傾斜面中全反射之來自第丨光源部之 光線於讀取面部分反射，且第2傾斜面中全反射之來自第2 光源部之光線於讀取面全反射。 藉該構成，拍攝指紋等以凹凸顯示之資訊時，可拍攝 出凹部分亮度低且對比佳之影像。 再者，亦可使來自第1光源部之光線之光軸方向與來自 第2光源部之光線之光軸方向彼此平行。 藉該構成’可提供一可輕薄化之讀取裝置。 又，亦可使讀取面與拍攝部間具有一導光機構。 藉該構成，可有效拍攝讀取面之散亂光。 再者，亦可將第1光源部、第2光源部及拍攝部設置於 同一基板上。 藉該構成，可於製造時簡單且容易地決定零件之正 位置。 又 ，亦可將導光機構設置成平行於來自第丨光源部、&gt; 線之光軸方向與來自第2光源部之光線之光軸方向。之一 藉該構成，可提供更輕薄化之讀取裝置。 再者，亦可使導光機構為Grjn透鏡陣列。 造。藉該構成，可間易之構成實現本發明之讀取裝置構 使GRIN透鏡_之共役長 讀取面之距離一致。 、拍攝部1 藉該構成，可拍攝出更鮮明之影像。 再者，亦可於讀取面設置—突起部。 藉該構成，可防止讀取面因摩擦等而產生 又，可使GRIN透鏡陣列之妓 者 突起部前端之距離一致 /、又又貫貝上與拍攝元件至 丨義之距離致，以將原稿#的更午至 再者，曲面亦可為凹面。 200403596 藉該構成，可輕易地防止損傷等。 又，亦可構造成當以讀取面之光線之臨界角作為R (deg)時，來自第1光源部之光線之光軸方向與第1傾斜面 所成之角度a ( deg)以0&lt; a &lt; (R/2)表示。 5 藉該構成，可良好地拍攝出文字或圖形原稿等以濃淡 顯示之影像。 再者，亦可構造成當以讀取面之光線之臨界角作為R (deg)時，來自第2光源部之光線之光軸方向與第2傾斜面 所成之角度/5 (deg)以（R/2) $冷$ 90 —R表示。 10 藉該構成，可良好地拍攝出指紋等以凹凸顯示之資訊。 接著，本發明之光學元件之特徵在於，包含有：一第1 讀取面，係由第1光線照射者；一第2讀取面，係由第2光線 照射者；一半透鏡，係可反射第1讀取面之散亂光，同時使 朝第2讀取面射入之光線穿透，並使第1讀取面之散亂光與 15 朝第2讀取面射入之光線配光於同方向者；及，一聚光機 構，係可將第1讀取面之散亂光及朝第2讀取面射入之光線 聚光於一預定面上者。 藉該構成，可以1個光學元件拍攝具有2個不同屬性之 資訊。再者，由於可以1個聚光元件將2個不同光路加以聚 20 光，因此可實現小型化且厚度薄之光學元件。 又，亦可使第1讀取面為一可讀取以凹凸顯示之資訊之 面，且，將第1光線構造成朝大致垂直方向照射第1讀取面。 藉該構成，可良好地讀取指紋等以凹凸顯示之資訊， 且可獲得對比高之良好影像。 200403596 又，亦可使第2讀取面為一可讀取以濃淡顯示之資訊之 面，且，第2光線照射第2讀取面之角度不超過臨界角。 藉該構成，可良好地讀取文字或圖形等以濃淡顯示之 資訊。 又，亦可使第1讀取面與第2讀取面彼此呈直角。 藉該構成，由於可於將光學元件安裝於資訊裝置等 時，以不同面拍攝具有2個屬性之影像，因此可提供使用者 一便於使用之光學元件。 再者’亦可使聚光機構為GRIN透鏡。说明 Description of the invention: [Technical Field 3 belonging to the invention] [Technical Field 3] The present invention relates to an optical element and a device capable of reading information displayed by the density of text or graphics, and information displayed by the unevenness of a fingerprint, etc. Take the device. I: Prior Art 3 Background Art In recent years, as mobile information devices such as mobile phone devices and PDAs (Personal Digital Assistants) have become increasingly high-performance, various mobile information devices having a personal authentication device have been proposed. For example, there is a proposal of a technology that is based on an optical reading device equipped with a mobile information device 'can take a user's fingerprint pattern image and authenticate itself with that image'. At the same time, a reading device can be used to take pictures such as text or graphics. Information (such as' Japanese Patent Gazette No. 2001-283207). It will be further explained in the conventional art of Lishu. Fig. 21 is a diagram for explaining the operation principle of the conventional reading device. As shown in Fig. 21, the conventional reading device is provided with an optical element 202 that can contact a subject 201 such as a user's finger or a document. The sandwiching optical element 202 'is provided with a light source portion on the side opposite to the subject 201. The light source unit 203 is arranged so as to be incident on a surface 202a of the optical element 202 that is in contact with the subject 201 at an incident angle θa. In addition, the imaging element 204 is disposed at a position where the light-receiving optical element that is incident on the 70 optical elements 2G2 from the light source section 203 and the object contacting the object 200403596 202a are reflected light components. However, at this time, the light receiving angle 0 b is equal to the incident angle (9 a.) Under the configuration of the conventional reading device, if the incident angle 0 a is generated in the surface 202 a where the optical element 200 contacts the subject 201, When the angle of total reflection is close to the 5 boundary angle (deg), the relationship of 20 ° &lt; 0a <critical angle is satisfied. In the aforementioned conventional reading device, as for the document information displayed in shades such as text or graphics, it is Components in the direction of the imaging element 204 can be read from scattered light on the surface 202a where the optical element 202 and the subject 201 are in contact to capture an image. In addition, as for information such as fingerprints that are displayed as unevenness, it can be used in optical 10 The reflected light component (equivalent to the concave portion) is read from the surface 202a where the element 202 is in contact with the subject 201, but the image is captured. However, in the aforementioned configuration, the angle of incidence is less than the critical angle <9 a pair with the finger The contact surface emits light, so there is a problem that the light from the concave portion of the fingerprint and the optical element is scattered, and the scattered light will enter the optical element 15 again, and the contrast of the captured image is reduced. Therefore, it is difficult to obtain the fingerprint image obtained by analysis. Information required for my authentication. I: Summary of the Invention [20] In view of the foregoing problems, the object of the present invention is to provide a fingerprint and other information displayed in bumps and text or graphics and other information displayed in shades. Image optical element and reading device. The optical element of the present invention is characterized by including: a first inclined surface, which can reflect the first light, and a second inclined surface, which can reflect the second light. ; And I 〆 ^, taking a plane, is adjacent to the first inclined surface and the second inclined surface, so that the light can be partially reflected on the totally reflected light of the first inclined surface, and the second light is completely reflected on the second inclined surface. After the reflected light is totally reflected, the person who reads the information is read. With this structure, the first light can be used to capture the information λ such as text or graphics in gradation, and the second light can be used to capture the information such as fingerprints that are displayed as unevenness. Also, Since the reflected light of the second inclined surface of the second light can be totally reflected, and information such as fingerprints and the like displayed on the concave and convex can be photographed, an image with low brightness and good contrast in the concave part can be photographed. Then, the reading device of the present invention It is characterized in that it includes: a first light source; a second light source section; a first inclined surface that allows the light from the first light source section to be totally reflected; a second inclined surface that enables the light from the first 2A total reflection of light from the light source; a reading surface can read the optical information of the object, and is not placed adjacent to the first inclined surface and the second inclined surface, and can be fully reflected on the first inclined surface The light from the first light source unit and the light from the second light source unit that are totally reflected on the second inclined surface; and a photographing unit that can photograph the scattered light on the reading surface. The light from the first light source can be used to capture information displayed in shades, such as text or graphics, and the second light from the second light source can be used to capture information such as fingerprints. Furthermore, the light from the second light source portion that is totally reflected on the first inclined surface may be partially reflected on the reading surface, and the light from the second light source portion that is totally reflected on the second inclined surface may be completely reflected on the reading surface. reflection. With this configuration, when information such as fingerprints is displayed with unevenness, an image with low brightness and good contrast in the concave portion can be taken. Furthermore, the optical axis direction of the light from the first light source portion and the optical axis direction of the light from the second light source portion may be made parallel to each other. By this constitution ', a thin and light reading device can be provided. In addition, a light guide mechanism may be provided between the reading surface and the imaging section. With this configuration, stray light on the reading surface can be effectively captured. The first light source unit, the second light source unit, and the imaging unit may be provided on the same substrate. With this configuration, the exact position of the part can be determined easily and easily at the time of manufacture. In addition, the light guide mechanism may be provided parallel to the direction of the optical axis of the line from the first light source section and the line of light and the direction of the optical axis of the light from the second light source section. One With this configuration, a thinner and lighter reading device can be provided. Furthermore, the light guide mechanism may be a Grjn lens array. Made. With this structure, the structure of the reading device of the present invention can be implemented easily, so that the distances between the reading planes of the GRIN lens and the cooperating length are consistent. ， Photographing unit 1 With this structure, you can shoot more vivid images. Furthermore, a protruding portion may be provided on the reading surface. With this structure, it is possible to prevent the reading surface from being generated due to friction, etc., and to make the distance between the tip of the prostitute protrusion of the GRIN lens array consistent, and the distance from the imaging element to the meaning, so that the original # Noon to noon, the curved surface may also be concave. 200403596 With this structure, damage can be easily prevented. In addition, when the critical angle of the light on the reading surface is taken as R (deg), the angle a (deg) formed by the optical axis direction of the light from the first light source portion and the first inclined surface is 0 °; a &lt; (R / 2). 5 With this structure, it is possible to take good pictures of text or graphic originals displayed in light and shade. Furthermore, when the critical angle of the light on the reading surface is taken as R (deg), the angle formed by the optical axis direction of the light from the second light source unit and the second inclined surface is / 5 (deg) to (R / 2) $ Cold $ 90 —R means. 10 With this structure, it is possible to take good pictures of fingerprints and other information. Next, the optical element of the present invention is characterized in that it includes: a first reading surface, which is irradiated by the first light; a second reading surface, which is irradiated by the second light; and a half lens, which is reflective The scattered light on the first reading surface penetrates the light incident on the second reading surface at the same time, and the scattered light on the first reading surface is distributed with the light incident on the second reading surface. Those in the same direction; and, a light concentrating mechanism, which can condense the scattered light on the first reading surface and the light incident on the second reading surface onto a predetermined surface. With this configuration, information with two different attributes can be captured by one optical element. Furthermore, since one light-condensing element can condense 20 different light paths, it is possible to realize a compact and thin optical element. In addition, the first reading surface may be a surface capable of reading information displayed in concavities and convexities, and the first light beam may be structured to irradiate the first reading surface in a substantially vertical direction. With this configuration, it is possible to read the information displayed in concavities and convexities such as fingerprints well, and obtain a good image with high contrast. 200403596 In addition, the second reading surface may be a surface capable of reading information displayed in shades, and the angle at which the second light irradiates the second reading surface does not exceed the critical angle. With this configuration, information such as text or graphics can be read well in shades. In addition, the first reading surface and the second reading surface may be made at right angles to each other. With this configuration, when an optical element is mounted on an information device or the like, an image having two attributes can be captured on different sides, so that the user can provide an optical element that is convenient to use. Furthermore, a GRIN lens may be used as the light condensing mechanism.

10 15 藉該構成，可實現一易於組裝或調整等之構成。 接著，本發明之讀取裝置之特徵在於，包含有：一第1 光源部第2光源部；一第i讀取面，係可由第i光線照射 者，一第2讀取面，係可由第2光線照射者；一半透鏡，係 可反射第1讀取面之散亂光，同時使朝第2讀取面射入之光 線穿透’並使第1讀取面之散亂光與朝第2讀取面射入之光 線配光於同杨者；-聚光機構，射將第H#取面之散亂 先及朝第2讀取面射入之光線聚光於預定面上者；及一拍 攝部，係配置於預定面上者。10 15 With this structure, a structure that can be easily assembled or adjusted can be realized. Next, the reading device of the present invention is characterized by comprising: a first light source section and a second light source section; an i-th reading surface, which can be illuminated by the i-th light, and a second reading surface, which can be viewed by the first 2 light irradiator; half of the lens can reflect the scattered light of the first reading surface, and at the same time allow the light incident on the second reading surface to pass through and make the scattered light of the first reading surface and the first 2 The light incident on the reading surface is distributed to the same Yang;-Concentrating mechanism, which focuses the light scattered on the H # taking surface first and the light incident on the second reading surface to focus on the predetermined surface; And a photographing unit, which is arranged on a predetermined surface.

20 藉該構成，可提供一可拍攝 次 攝八有托紋專以凹凸顯六 貝A及文予或圖形等濃 資訊的讀取裝置。辰^不之貝種不同屬伯 ”更拍攝部之拍攝面至第1讀取面之綱 攝部==至被攝體所配置之面之光路長相等。 構成，可良好地分別拍攝具有2個不同扉 10 再者，亦可使拍攝部之拍攝面至第丨讀取面之光路長及 拍攝部之拍攝面至被攝體所配置之面之光路長與聚光機構 之共役長相等。 藉該構成，可拍攝對焦正確之良好影像。 又，亦可使第1讀取面所讀取之資訊為指紋資訊，而第 2讀取面所讀取之被攝體資訊為文件資訊。 藉該構成，可提供一適合搭載於資訊裝置之讀取裝置。 接著，本發明之資訊裝置之特徵在於，具有讀取裝置 及用以收納該讀取裝置之框體，I，被攝體所配置之面與 框體及被攝體接觸之面一致。 藉/構成可提供一可讀取指紋來進行本人認證及讀 取URL或2次條碼等文件資訊之資訊裝置。又，可於讀取 文件資訊時’使_與簡體接觸，藉此可輯對焦正確 之良好影像。X，由於搭載本發明之讀取裝置，因此可提 崎置。再者，由於可使讀取裝置之第2讀取 ::二衣置之框體之最表面為内側，因此可防止第2讀取 面損傷等而加以保護。 如上所述， 論指紋等以凹凸 資訊皆可獲得對 圖式簡單說明 若使用本發明之光學元件及讀取裝置，無 顯示之資訊及文字或圖形等以濃淡顯示之 比良好之影像，且可使其輕薄化。 弟1圖係顯示本發明第1實施形態之讀取裝置之構成的 200403596 第2(a)圖係顯示本發明第1實施形態之讀取裝置之構 成的立體圖。 第2(b)圖係顯示本發明第1實施形態之讀取裝置之構 成的平面圖。 5 第3圖係用以說明本發明第1實施形態之讀取裝置拍攝 以凹凸顯示之資訊時的動作之圖。 第4圖係用以說明本發明第1實施形態之讀取裝置拍攝 以濃淡顯示之資訊時的動作之圖。 第5 (a)圖係顯示搭載有本發明第1實施形態之讀取裝 10 置的行動電話裝置構成之正面圖。 第5 (b)圖係顯示本發明第1實施形態之行動電話裝置 中搭載有讀取裝置之部分之要部立體圖。 第6圖係顯示本發明第1實施形態之行動電話裝置中搭 載有讀取裝置之部分之要部剖面圖。 15 第7圖係顯示本發明第2實施形態之讀取裝置之構成的 剖面圖。 第8圖係顯示本發明第3實施形態之讀取裝置之構成的 剖面圖。 第9圖係顯示本發明第3實施形態之讀取裝置之構成的 20 概略立體圖。 第10圖係顯示本發明第4實施形態之讀取裝置之構成 的剖面圖。 第11圖係顯示本發明第4實施形態之讀取裝置之構成 的立體圖。 12 200403596 第12圖係用以說明本發明第4實施形態之讀取裝置讀 取以濃淡顯示之資訊時的動作之圖。 第13圖係用以說明本發明第4實施形態之讀取裝置讀 取以凹凸顯示之資訊時的動作之圖。 5 第14圖係顯示本發明第4實施形態之讀取裝置之另一 構成的剖面圖。 第15圖係顯示本發明第4實施形態之讀取裝置之又一 構成的剖面圖。 第16圖係顯示本發明第4實施形態之讀取裝置之再一 10 構成的剖面圖。 第17圖係顯示本發明第5實施形態之讀取裝置之構成 的立體圖。 第18圖係顯示本發明第5實施形態之讀取裝置之構成 的剖面圖。 15 第19圖係顯示本發明第6實施形態之讀取裝置之構成 的立體圖。 第20圖係顯示本發明第6實施形態之讀取裝置之構成 的平面圖。 第21圖係用以說明習知讀取裝置之構成之圖。 20 【方式】 用以實施發明之最佳形態 (第1實施形態） 第1圖係顯示本發明第1實施形態之讀取裝置之構成的 剖面圖。又，第2 (a)圖為顯示其外觀之立體圖，而第2(b) 13 200403596 圖則為平面圖。各圖中，為便於說明’乃記載XYZ之3輛方 向。 第1圖中’本實施形悲之項取裝置1具有一設有第 1LED13之第1基板11、一設有拍攝元件32與第2LED14且與 5 第1基板11貼合之第2基板12及後述之光學元件，且為防止 光漏出，並具有防止來自光學元件之光線漏出之遮蔽構件 28〜31。拍攝元件32可使用CMOS感測器或CCD感測器等眾 所皆知之感測器。本實施形態中，乃使用256x 16像素之 CMOS感測器。 1〇 讀取裝置1中，光學元件係由透明性高之丙烯、聚碳酸 酯或玻璃等眾所皆知之光學材料所構成，並具有一可將來 自第1LED13之光線誘導至稜鏡部18之導光機構17(以下稱 第1導光機構）、一可將來自稜鏡部18之光線誘導至半透鏡 25之導光機構19 (以下稱第2導光機構）、一可將來自第 15 2LED14之光線誘導至原稿讀取部21之導光機構22 (以下稱 第3導光機構）及一由半透鏡25形成之導光機構20 (以下稱 第4導光機構）。 第1導光機構17於射出側（第丨圖中為左側）設有全反 射面40。本實施形態之讀取裝置}*，其全反射面4〇與光線 20之行進方向（第1圖之x軸方向）所成之角度α為45。。 而，第1導光機構17之全反射面40亦可使用線性菲涅耳 等導光板、擴散板或折射袼子等可使光線方向由第1圖中χ 軸方向配光至Υ軸方向之機構。 又，，光學元件更包含一用以拍攝指紋或點字等具有 14 凹凸之貧訊而具有可與被攝體（如手指）接觸之凹凸讀取 面33之稜鏡部18，以及_可於減文字或圖料以濃淡顯 不之貝崎朝向被攝體（如原稿）的由透明性高之塑膠等 小所皆知之光學材料所構叙原稿讀取部Ή。再者，讀取 裳置1包含-具有用以使光線聚光於拍攝元件32之聚光作 用的由透明性高之塑料眾所皆知之光學材料所構成之折 射率分布型透鏡（町稱GRIN透鏡）23&amp;ϋ經全反射 塗敷之全反射面以使光路曲折之全反射機構24。全反射機 構24乃以接著於第！基板Uj^等眾所皆知之方法形成。 稜鏡部18與第2導光機構19間宜構造成保持光學緊 貼，如此一來可提高透過率。又，第2導光機構19與第4導 光機構20間以對第丨圖中又軸方向呈6入5。之角度（厶）形 成有半透鏡25。 又’第2導光機構19與GRIN透鏡23間亦以接著成可保 持光學緊貼為佳。再者，原稿讀取部21與第4導光機構2〇宜 接著成可保持光學緊貼，以提高透過率。 再者’為防止光漏出，第1導光機構1：^GRIN透鏡23 所接觸之界面、GRIN透鏡23、第2導光機構19及第4導光機 構20與第3導光機構22所接觸之界面以黑色塗裝為佳。 再者，遮蔽構件28〜31由塑膠或橡膠等眾所皆知之材 料所構成。遮蔽構件28〜31以由具有吸收光之作用之材料 或黑色材料構成為佳。 而’第1LED13及第2LED14之射出側亦可設置用以聚 光之菲 &gt;圼耳透鏡等具有電容作用之聚光部15、16。藉此， 200403596 可將來自第1LED13及第2LED14之光線有效加以聚光。 而，本實施形態之讀取裝置1之大小於第1圖中為 L=10.2mm、Hl=3.85mm、H2=3.00mm，於第 2 圖中為 W=16mm，實現了足以應付搭載於行動電話裝置等攜帶型 5 資訊裝置時之小型化。 而，如第2圖所示，本實施形態之讀取裝置1中，凹凸 讀取面33之X軸方向寬度及原稿讀取部21之Y軸方向寬度 較原稿或手指大小為窄，因此指紋等具有凹凸之資訊及文 字或圖形等具有濃淡之資訊可連續拍攝其部分影像後加以 10 合成，藉此拍攝全體影像。 接著，說明本實施形態之讀取裝置1之動作。而，以下 為便於說明，光線乃以光軸中心之光線進行說明。 第3圖係用以顯示拍攝指紋等以凹凸顯示之資訊之影 像時讀取裝置1之動作者。而，與第1圖所示之構成要件相 15 同之構成要件則標以相同符號，並省略說明。 首先，以讀取裝置1取得指紋等以凹凸顯示之資訊之影 像的情形為例進行說明。 首先，點亮第1LED13。來自第1LED13之光線由聚光 部15聚光後，射入第1導光機構17。 20 射入第1導光機構17之光線於第1導光機構17中朝第3 圖中X軸方向直進，並於第1導光機構17之設於第3圖中左側 之全反射面40全反射後，大致垂直地（第3圖中Y軸方向） 射入稜鏡部18。射入棱鏡部18之光線由稜鏡部之射出面之 凹凸讀取面33射出。 16 200403596 藉該構成，如第3圖所示，例如當手指63接觸稜鏡部18 之凹凸讀取面33時，手指63與凹凸讀取面33緊貼之部分， 即形成指紋隆起線之凸部分光會散亂。 另一方面，與凹凸讀取面33分開而形成指紋谷線之凹 5部分光散亂較少。 手指63緊貼凹凸讀取部33之部分，即指紋之凸部分散 亂之光線中，相對凹凸讀取面33之鉛直方向，第3圖中r方 向之成分由棱鏡部18穿透第2導光機構19後，由半透鏡25反 射。由半透鏡25反射之光線會由GRIN透鏡23聚光，並由全 10 反射機構24全反射後，射入拍攝元件32。又，本實施形態 中’ T為45° ，而r以超過構成棱鏡部18之材料的臨界角 為佳。 藉該作用，由指紋凸面形成之隆起線部分會拍成白色 (亮度較高），而由凹面形成之谷線部分則會拍成黑色（亮 15度較低）。 又，稜鏡部18於第3圖中以圖中右下之a所示之面係藉 例如黑色塗裝來吸收光，使凹凸讀取面33上未與手指63接 觸之部分可拍攝出A面之黑色，因此可獲得對比佳且由指紋 等凹凸所構成之影像。 2〇 再者，稜鏡部Μ於第3圖中以B及C顯示之面係藉例如 黑色塗裝來吸收光，使炫光或戶外陽光等不良影響降低， 因此可提高由指紋等凹凸所構成之影像之對比。 接著，以第4圖說明使用讀取裝置丨拍攝文字或圖形等 以濃淡構成之資訊時之動作。 17 200403596 第4圖係用以說明以本發明第礞施形態之讀取裝置拍 攝文字或圖形等以濃淡顯示之資訊時之動作者。 第4圖中’拍攝以濃淡顯示之資訊時，點亮第2LED14。 自第2LED14照射之光線由聚光部16聚光後，射人第3導光 5機構22射入第3導光機構22之光線藉設於第3導光機構22 之射出側（第4圖中左側）之折射面27之作用朝第4圖上方 折射並射出。自第3導光機構22射出之光線穿過原稿讀取部 21後自項取裝置1射出。❿，折射面27之角度需依與原稿之 距離來改變，可適當設計以使光線可照射原稿上進行讀取 10 之位置。 如第4圖所示’進行讀取之原稿34朝向讀取裝置1之原 稿讀取部21配置時，自讀取裝置丨射出之光線會照射至原稿 34 〇 原稿34上’黑色印刷之部分，即濃淡較濃之部分會吸 15 收光線。另一方面，白色印刷之部分，即濃淡較淡之部分 光線會擴散反射。於原稿34擴散反射之光線中，部分光線 會再次自原稿讀取部21射入讀取裝置1，並穿透第4導光機 構20及第2導光機構18，而由GRIN透鏡23聚光後，由全反 射機構24全反射並射入拍攝元件32。 20 藉此，除前述指紋等以凹凸顯示之資訊外，可以拍攝 元件32拍攝文字或圖形等以濃淡顯示之原稿34上之資訊。 如此一來，藉本實施形態之讀取裝置1，乃可實現一藉 使用半透鏡25來使來自2個不同方向之光線配光於同一方 向之構成，因此可控制使來自2個不同光源之反射光射入1 18 200403596 個光學系統（GRIN透鏡）並加以拍攝。藉此，可以各自之 光學系統將2個反射光聚光之構成，且將讀取裝置丨於丫軸方 向輕薄化。再者，可將2個光路，即第1導光機構17與第3導 光機構22，甚至GRIN透鏡23之光軸平行配置，以使讀取裝 5 置1於Y軸方向更加輕薄化。 而，本實施形態之讀取裝置1中，為拍攝來自2個不同 面之反射光，乃使GRIN透鏡23之共役長與2個光路之光路 長一致。以下，將詳細說明。 本實施形態之讀取裝置1於第3或第4圖中，滿足grin 1〇 透鏡23之共役長TC=P1〜P4〜P3之光路長=P2〜P4〜P3之關 係。在此，P1為照射凹凸讀取面33之光線之光軸中心點、 P2為照射於讀取之被設體（原稿34)上之光線之光軸中心 點、P3為射入拍攝元件32之光線之光軸中心點、P4為射入 半透鏡25之光線之光軸中心點。 15 由於P3〜P4(拍攝元件32至半透鏡25為止）之光路長於 2個光路相等，因此只要滿足P4〜P1之光路長=P2〜P4之關係 即可。 故，第3或第4圖中，各媒介物中之實際光路長與各媒 介物之折射率之關係只要設計成： 20 (Ll/Nl) +(L2/N2) =(L3/N3) +(L4/N4) + (L5/l.〇) 即可（惟，稜鏡部18中之光路長：LI，折射率：Nl ;第2 導光機構19中之光路長：L2，折射率·· N2，第4導光機構 20中之光路長·· L3，折射率：N3，原稿讀取部21中之光路 長：L4，折射率：N4 ;原稿讀取部21與原稿34間之光路長： 19 200403596 L5，折射率：N5 (=1.0))。 而’本實施形態之讀取裝置1中，GRIN透鏡23之共役 長TC乃使用l〇.2mm (對570nm之光源）者。 本實施形態中，稜鏡部18、第2導光機構19、第4導光 5機構20及原稿讀取部21之材料可分別使用一般光學玻璃材 料之BK7 (折射率：n1=N2=N3=N4=1.5171)，因此本實施 形態中，外觀之光路長：20 Based on this structure, a reading device capable of taking photographs with a trough pattern and displaying uneven information such as A and Wenyu or graphics can be provided. "Chen ^ is not a different kind of shellfish." The shooting path from the shooting surface to the first reading surface is equal to the length of the light path to the surface where the subject is arranged. The structure can be taken separately with 2 In addition, the length of the optical path from the shooting surface of the shooting section to the reading surface and the length of the optical path from the shooting surface of the shooting section to the surface where the subject is configured can be made equal to the cooperating length of the focusing mechanism. With this configuration, a good image with correct focus can be captured. In addition, the information read by the first reading surface can be fingerprint information, and the subject information read by the second reading surface can be document information. This structure can provide a reading device suitable for being mounted on an information device. Next, the information device of the present invention is characterized by having a reading device and a frame for accommodating the reading device, I, the subject is arranged The surface is the same as the surface where the frame and the subject are in contact. Borrowing / composing can provide an information device that can read fingerprints to authenticate itself and read document information such as URLs or secondary barcodes. It can also read documents When you are in the news, you can make contact with Simplified Chinese. Good image. X, because it is equipped with the reading device of the present invention, it can be lifted. Furthermore, because the second reading of the reading device can be made ::: the outermost surface of the frame of the second garment is inside, so The second reading surface can be protected from damage and the like. As mentioned above, it is possible to obtain a simple explanation of the drawing by using bump information such as fingerprints. If the optical element and the reading device of the present invention are used, no information or text is displayed. The graphics and other images are displayed in a good light and shade ratio and can be made thinner. Figure 1 shows the structure of the reading device of the first embodiment of the present invention. 200302596 Figure 2 (a) shows the first implementation of the present invention. A perspective view of the structure of the reading device of the form. Figure 2 (b) is a plan view showing the structure of the reading device of the first embodiment of the present invention. 5 Figure 3 is used to explain the reading of the first embodiment of the present invention. Figure 4 shows the operation of the device when photographing information displayed in bumps. Figure 4 is a diagram illustrating the operation of the reading device in the first embodiment of the present invention when capturing information displayed in shades. Figure 5 (a) shows the display Equipped with the first implementation of the present invention A front view of the configuration of the mobile phone device of the reading device 10 is shown in Fig. 5. (b) is a perspective view of the main part of the mobile phone device according to the first embodiment of the present invention equipped with the reading device. Fig. 6 FIG. 7 is a cross-sectional view showing a main part of a mobile phone device equipped with a reading device according to the first embodiment of the present invention. FIG. 7 is a cross-sectional view showing the structure of a reading device according to the second embodiment of the present invention. Fig. 9 is a cross-sectional view showing the structure of a reading device according to a third embodiment of the present invention. Fig. 9 is a schematic 20 perspective view showing the structure of a reading device according to a third embodiment of the present invention. Sectional view of the structure of a reading device according to an embodiment. FIG. 11 is a perspective view showing the structure of a reading device according to a fourth embodiment of the present invention. 12 200403596 Fig. 12 is a diagram for explaining the operation when the reading device of the fourth embodiment of the present invention reads information displayed in light and shade. Fig. 13 is a diagram for explaining the operation when the reading device according to the fourth embodiment of the present invention reads information displayed in asperities. 5 Fig. 14 is a sectional view showing another configuration of a reading device according to a fourth embodiment of the present invention. Fig. 15 is a sectional view showing still another configuration of a reading device according to a fourth embodiment of the present invention. Fig. 16 is a sectional view showing the structure of still another reading device of the fourth embodiment of the present invention. Fig. 17 is a perspective view showing the structure of a reading device according to a fifth embodiment of the present invention. Fig. 18 is a sectional view showing the structure of a reading device according to a fifth embodiment of the present invention. 15 Fig. 19 is a perspective view showing the structure of a reading device according to a sixth embodiment of the present invention. Fig. 20 is a plan view showing the structure of a reading device according to a sixth embodiment of the present invention. Fig. 21 is a diagram for explaining the structure of a conventional reading device. [Mode] Best Mode for Implementing the Invention (First Embodiment) Fig. 1 is a sectional view showing the structure of a reading device according to a first embodiment of the present invention. Fig. 2 (a) is a perspective view showing the appearance, and Fig. 2 (b) 13 200403596 is a plan view. In each figure, for the sake of explanation, the three directions of XYZ are shown. In the first figure, the item taking device 1 of this embodiment has a first substrate 11 provided with a first LED 13, a second substrate 12 provided with an imaging element 32 and a second LED 14 and bonded to the 5 first substrate 11, and The optical element described later has shielding members 28 to 31 for preventing light leakage and preventing light leakage from the optical element. As the imaging element 32, a known sensor such as a CMOS sensor or a CCD sensor can be used. In this embodiment, a 256 × 16 pixel CMOS sensor is used. In the reading device 1, the optical element is made of a well-known optical material such as acrylic, polycarbonate, or glass, and has a light source capable of inducing light from the first LED 13 to the crotch 18. A light guide mechanism 17 (hereinafter referred to as the first light guide mechanism), a light guide mechanism 19 (hereinafter referred to as the second light guide mechanism) that can induce light from the crotch 18 to the half lens 25, and a light guide mechanism 15 The light of 2LED14 is induced to the light guide mechanism 22 (hereinafter referred to as the third light guide mechanism) of the original reading section 21 and a light guide mechanism 20 (hereinafter referred to as the fourth light guide mechanism) formed by the half lens 25. The first light guide mechanism 17 is provided with a full reflection surface 40 on the emission side (left side in the figure). In the reading device of this embodiment} *, the angle α formed by the total reflection surface 40 and the traveling direction of the light ray 20 (the x-axis direction in Fig. 1) is 45. . In addition, the total reflection surface 40 of the first light guide mechanism 17 can also use a light guide plate such as a linear Fresnel, a diffuser, or a refraction cricket to distribute the light direction from the χ-axis direction in the first figure to the y-axis direction. mechanism. In addition, the optical element further includes a crotch portion 18 for photographing fingerprints, brailles, and other poor information with 14 asperities and having an asperity reading surface 33 that can be contacted with a subject (such as a finger), and _ 可 于The minuscule text or graphic material is composed of small and well-known optical materials, such as plastic, which is oriented toward the subject (such as the original) in a light and shaded manner, and the original reading section Ή. Further, the reading device 1 includes a refractive index distribution lens (machin name) made of a highly-transparent plastic material having a condensing effect for condensing light on the imaging element 32. GRIN lens) 23 &amp; A total reflection mechanism 24 with a total reflection surface coated with total reflection to bend the optical path. Total reflection mechanism 24 continues next! The substrate Uj ^ is formed by a known method. It is preferable that the crotch portion 18 and the second light guide mechanism 19 be configured to maintain optical contact with each other so that the transmittance can be improved. In addition, the second light guide mechanism 19 and the fourth light guide mechanism 20 are 6 to 5 with respect to the axial direction in the figure. The angle (厶) is formed with a half lens 25. It is also preferable that the second light guide mechanism 19 and the GRIN lens 23 are connected to each other so as to maintain optical closeness. Furthermore, it is desirable that the original reading section 21 and the fourth light guiding mechanism 20 are connected so as to maintain optical contact with each other so as to improve the transmittance. Furthermore, in order to prevent light leakage, the first light guide mechanism 1: the interface contacted by the GRIN lens 23, the GRIN lens 23, the second light guide mechanism 19, and the fourth light guide mechanism 20 are in contact with the third light guide mechanism 22. The interface is preferably painted in black. The shielding members 28 to 31 are made of a well-known material such as plastic or rubber. The shielding members 28 to 31 are preferably composed of a material having a function of absorbing light or a black material. On the emitting sides of the first LED 13 and the second LED 14, light condensing units 15 and 16 having a capacitive function, such as a phenanthrene lens for condensing light, may also be provided. In this way, 200403596 can effectively concentrate the light from the first LED13 and the second LED14. The size of the reading device 1 in this embodiment is L = 10.2mm, Hl = 3.85mm, and H2 = 3.00mm in the first figure, and W = 16mm in the second figure. Miniaturization for portable information devices such as telephone equipment. As shown in FIG. 2, in the reading device 1 of this embodiment, the width in the X-axis direction of the uneven reading surface 33 and the width in the Y-axis direction of the original reading section 21 are narrower than the size of the original or the finger. Information such as bumps and text or graphics with light and shade information can be shot continuously and then combined for 10 times to capture the entire image. Next, the operation of the reading device 1 according to this embodiment will be described. In the following, for the sake of explanation, the light is described with the light at the center of the optical axis. Fig. 3 is a view showing an operator of the reading device 1 when taking an image of information such as fingerprints, which is displayed in a concave-convex manner. In addition, the same constituent elements as those shown in FIG. 1 are denoted by the same reference numerals, and descriptions thereof are omitted. First, a case where the reading device 1 acquires an image of information such as a fingerprint displayed as unevenness will be described as an example. First, the first LED 13 is turned on. The light from the first LED 13 is condensed by the condensing unit 15 and then enters the first light guide mechanism 17. 20 The light incident on the first light guide mechanism 17 enters the first light guide mechanism 17 in the X-axis direction in FIG. 3 and goes straight to the total reflection surface 40 of the first light guide mechanism 17 on the left side in FIG. 3. After total reflection, it enters the crotch portion 18 approximately vertically (in the Y-axis direction in FIG. 3). The light incident on the prism portion 18 is emitted from the uneven reading surface 33 of the exit surface of the crotch portion. 16 200403596 With this configuration, as shown in FIG. 3, for example, when the finger 63 contacts the uneven reading surface 33 of the crotch 18, the portion where the finger 63 and the uneven reading surface 33 are in close contact, that is, the convexity of the fingerprint ridge is formed. Part of the light will be scattered. On the other hand, the part of the recess that is separated from the uneven reading surface 33 to form a fingerprint valley line has less light scattering. The part of the finger 63 that is in close contact with the uneven reading portion 33, that is, the scattered light of the convex portion of the fingerprint, is opposite to the vertical direction of the uneven reading surface 33. The component in the r direction in FIG. 3 penetrates the second guide by the prism portion 18. Behind the light mechanism 19, it is reflected by the half lens 25. The light reflected by the half lens 25 is condensed by the GRIN lens 23, and is totally reflected by the total reflection mechanism 24, and then enters the imaging element 32. In this embodiment, 'T is 45 °, and r is preferably greater than the critical angle of the material constituting the prism portion 18. With this effect, the raised line portion formed by the convex surface of the fingerprint will be photographed as white (higher brightness), while the valley line portion formed by the concave surface will be photographed as black (15 degrees brighter). In addition, the surface of the crotch portion 18 in FIG. 3 shown by a in the lower right of the figure is used to absorb light by, for example, black coating, so that the portion of the uneven reading surface 33 that is not in contact with the finger 63 can capture A. The surface is black, so you can get an image with good contrast and composed of irregularities such as fingerprints. 20 Furthermore, the face shown by B and C in Figure 3 as shown in Figure 3 uses black paint to absorb light, which reduces the adverse effects of glare or outdoor sunlight. Therefore, it is possible to improve Contrast of images. Next, a description will be given with reference to FIG. 4 of an operation when a reading device, such as text or graphics, is used to capture information composed of light and shade. 17 200403596 Figure 4 is used to explain the action of the reader when the reading device according to the embodiment of the present invention captures information displayed in shades such as text or graphics. In the fourth picture, when the information displayed in light and shade is captured, the second LED 14 is turned on. After the light irradiated from the second LED 14 is condensed by the light condensing section 16, the light that enters the third light guide mechanism 22 and enters the third light guide mechanism 22 is provided on the exit side of the third light guide mechanism 22 (FIG. 4) The function of the refracting surface 27 on the left side is refracted toward the upper side of FIG. 4 and emitted. The light emitted from the third light guide 22 passes through the document reading section 21 and is emitted from the item picking device 1. Alas, the angle of the refracting surface 27 needs to be changed according to the distance from the original, and it can be appropriately designed so that light can be irradiated on the original for reading 10 position. As shown in FIG. 4 'When the original 34 to be read is arranged toward the original reading section 21 of the reading device 1, the light emitted from the reading device 丨 will be irradiated to the original 34. The' black printed portion 'on the original 34, That is, the denser part will absorb 15 rays of light. On the other hand, in the white printed part, that is, the lighter part, the light will diffuse and reflect. Among the diffusely reflected light of the original document 34, part of the light will enter the reading device 1 again from the original reading section 21, penetrate the fourth light guide mechanism 20 and the second light guide mechanism 18, and be focused by the GRIN lens 23. Then, it is totally reflected by the total reflection mechanism 24 and is incident on the imaging element 32. 20 In this way, in addition to the above-mentioned information displayed by the fingerprints and the like as unevenness, the image capturing element 32 can capture the information on the original 34, such as text or graphics, displayed in light and shade. In this way, by using the reading device 1 of this embodiment, a configuration can be realized in which light from two different directions is distributed in the same direction by using a half lens 25, so that the light from two different light sources can be controlled. The reflected light was incident on 1 18 200403596 optical systems (GRIN lenses) and photographed. Thereby, two reflection lights can be condensed by their respective optical systems, and the reading device can be made thinner in the Y-axis direction. Furthermore, two optical paths, that is, the first light guide mechanism 17 and the third light guide mechanism 22, and even the optical axis of the GRIN lens 23 may be arranged in parallel, so that the reading device 1 can be made lighter and thinner in the Y-axis direction. In addition, in the reading device 1 of this embodiment, in order to capture reflected light from two different surfaces, the co-operative length of the GRIN lens 23 and the optical path length of the two optical paths are made the same. This will be described in detail below. The reading device 1 of this embodiment satisfies the relationship between the joint length TC of the grin 10 lens 23 and the optical path length of P1 to P4 to P3 = P2 to P4 to P3. Here, P1 is the center point of the optical axis of the light irradiated on the embossed reading surface 33, P2 is the center point of the optical axis of the light irradiated on the object to be read (original document 34), and P3 is the point of incidence on the imaging element 32 The center point of the optical axis of light rays, P4 is the center point of the optical axis of light rays entering the half lens 25. 15 Since the optical paths of P3 to P4 (from the imaging element 32 to the half lens 25) are longer than the two optical paths, it is only necessary to satisfy the relationship of the optical path lengths of P4 to P1 = P2 to P4. Therefore, in Figure 3 or 4, the relationship between the actual optical path length of each medium and the refractive index of each medium is designed as: 20 (Ll / Nl) + (L2 / N2) = (L3 / N3) + (L4 / N4) + (L5 / l.〇) is sufficient (but, the light path length in the crotch part 18: LI, refractive index: Nl; the light path length in the second light guide 19: L2, refractive index · N2, the optical path length in the fourth light guiding mechanism 20. L3, the refractive index: N3, the optical path length in the original reading section 21: L4, the refractive index: N4; the optical path between the original reading section 21 and the original 34 Length: 19 200403596 L5, refractive index: N5 (= 1.0)). On the other hand, in the reading device 1 according to the present embodiment, the common length TC of the GRIN lens 23 is 10.2 mm (for a light source of 570 nm). In this embodiment, BK7 (refractive index: n1 = N2 = N3) of ordinary optical glass materials can be used for the material of the crotch portion 18, the second light guiding mechanism 19, the fourth light guiding mechanism 20, and the original reading portion 21. = N4 = 1.5171), so in this embodiment, the optical path of the appearance is long:

Ll+L2-3.33mm L3+L4=0.70mm · 10 L5=1.73mm 〇 如此，構造成使用以拍攝以凹凸顯示之資訊之光路與 用以拍攝以濃淡顯示之資訊之光路的2個光路之光路長與 GRIN透鏡23之共役長相等，藉此本實施形態之讀取裝置1 無論對與原稿讀取部21分開而配置之原稿34之以濃淡構成 15 之資訊及接觸凹凸讀取面33之指紋等以凹凸構成之資訊皆 可拍攝對焦正確、對比良好且鮮明之影像。 而，GRIN透鏡23之共役長與2個光路之光路長之差只 ® 要在GRIN透鏡23之共役長之被攝界深度以内，如約+ 0.5mm，在實用上皆不會有問題。 20 而’本實施形態之讀取裝置1中，若預先使第1LED13 與第2LED14之波長相異，並於稜鏡部18與第2導光機構19 間配置與波長對應第1LED13之帶通濾波器，且於原稿讀取 部21與第4導光機構20間或第4導光機構20與半透鏡25間配 置波長對應第2LED14之帶通濾過器，則可進而獲得外光戋 20 200403596 迷光等影響少且對比良好之以濃淡顯示之資訊之影像及以 凹凸顯示之資訊之影像。 而，讀取資訊之切換，可藉切換點亮之光源，即第 1LED13及弟2LED14而輕易進行。 5 如第1〜4圖所示，本實施形態之讀取裝置1中，凹凸讀 取面33與原稿讀取部21之表面係構造成彼此呈直角。藉該 構成，可提供一將讀取裝置1搭載於行動電話裝置等資訊裝 置時，便於使用者使用之資訊裝置。 於第5圖顯示搭載有前述讀取裝置1之行動電話裝置等 10 資訊裝置之例。 第5圖為搭載有讀取裝置1之行動電話裝置50之外觀 圖，第5 (a)圖為其正面圖，第5 (b)圖為顯示搭載有讀 取裝置1之端部的要部立體圖。 行動電話裝置50係於天線部51、揚聲部52、LCD等之 15 顯示部53、按鍵部54及對講部55等眾所皆知之行動電話裝 置内藏有讀取裝置1之構成。 第5 (b)圖所示，行動電話裝置5〇外部露出部分包含 稜鏡部18之凹凸讀取面33及原稿讀取部21，並使原稿讀取 部21位於行動電話裝置50之框體内側。 2〇 就該構成進而詳細說明。第6圖為搭載有行動電話裝置 50之讀取裝置1之部分的要部剖面圖。第6圖中，讀取裝置i 收納於行動電話裝置50之框體43内，如前所述，露出部分 包含稜鏡部18之凹凸讀取面33及原稿讀取部21。再者，於 與讀取裝置1之GRIN透鏡23其中一共役點P2〆致之位置配 21 200403596 置框體43之外側面，藉此可使原稿34接觸框體心之外側 面’而可減雜34之影像。藉該構成，由於原稿34之焦 點固定，13此可拍攝穩定、對焦正確謂比高之影像，同 時可防止原稿讀取部21受損。 又，使棱鏡部18略為自行動電話裝置50之框體43外側 面突出。第6圖中，Η卜3.85mm，而藉該構造，可使收納於 框體43内部之實降蛛&amp; # 一 1心貝1不靖取裝置1之厚度非常薄 (H2=3.()()mm)’易於搭載於近年來不斷輕薄化之行動電話 裝置。 又’藉搭載本發明之讀取裝置，可分別讀取指紋等凹 凸之面與讀取文字或圖形等以濃淡顯示之資訊之讀取面， 因㈣使用者而言，可提供—十分好用之資訊裝置。而， 如第5圖所示’於行動電話裂置％進行操作之面形成讀取指 紋等以凹凸顯示之資訊之讀取面，並於行動電話5〇之下面 設置讀取文字或圖形等以濃淡顯示之資訊之讀取面，藉 此，可提供-對使用者而言十分易於使用之讀取裝勤内藏 崔之行動電話裝置50。 再者，若構造成搭载有前述讀取裝置之資訊裝置，可 根據使用者之指紋資t轉進行本人認證，且可讀取狐或2 20Ll + L2-3.33mm L3 + L4 = 0.70mm · 10 L5 = 1.73mm 〇In this way, it is configured to use two optical paths of light paths for capturing information displayed in bumps and two optical paths for recording of information displayed in shades. The length is equal to the length of the GRIN lens 23, so that the reading device 1 of this embodiment, regardless of the information of the original document 34 arranged separately from the original document reading unit 21, is composed of the light and shade information 15 and the fingerprint contacts the uneven reading surface 33. Information such as bumps can capture images that are in focus, contrast, and sharp. However, the difference between the length of the GRIN lens 23 and the length of the two optical paths is only within the subjective depth of the length of the GRIN lens 23, such as about + 0.5mm, and there will be no practical problems. 20 In the reading device 1 of this embodiment, if the wavelengths of the first LED 13 and the second LED 14 are different from each other, and a band-pass filter corresponding to the wavelength of the first LED 13 is arranged between the crotch 18 and the second light guiding mechanism 19 And a band-pass filter with a wavelength corresponding to the second LED 14 is arranged between the original reading section 21 and the fourth light guiding mechanism 20 or between the fourth light guiding mechanism 20 and the half lens 25, and then an external light can be obtained. 20 200403596 Such as the image of the information displayed in light and shade and the information displayed in bumps with little influence and good contrast. Moreover, the switching of reading information can be easily performed by switching the light source that is lit, that is, the first LED13 and the second LED14. 5 As shown in Figs. 1 to 4, in the reading device 1 of this embodiment, the uneven reading surface 33 and the surface of the original reading section 21 are structured at right angles to each other. With this configuration, it is possible to provide an information device which is convenient for a user when the reading device 1 is mounted on an information device such as a mobile phone device. Fig. 5 shows an example of an information device 10 such as a mobile phone device equipped with the reading device 1 described above. FIG. 5 is an external view of a mobile phone device 50 equipped with the reading device 1, FIG. 5 (a) is a front view thereof, and FIG. 5 (b) is a main portion showing an end portion of the reading device 1 Perspective view. The mobile phone device 50 has a structure in which the reading device 1 is incorporated in a well-known mobile phone device such as the antenna section 51, the speaker section 52, the 15 display section 53, the key section 54, and the intercom section 55. As shown in FIG. 5 (b), the external exposed portion of the mobile phone device 50 includes the uneven reading surface 33 of the crotch portion 18 and the original reading portion 21, and the original reading portion 21 is located in the frame of the mobile telephone device 50. Inside. 20 This structure will be described in more detail. FIG. 6 is a cross-sectional view of a main part of a part of the reading device 1 on which the mobile phone device 50 is mounted. In FIG. 6, the reading device i is housed in the housing 43 of the mobile phone device 50. As described above, the exposed portion includes the uneven reading surface 33 of the crotch portion 18 and the original reading portion 21. Furthermore, the position of the outer side of the frame 43 is arranged at a position which coincides with one of the GRIN lenses 23 of the reading device 1 at P2. Miscellaneous 34 images. With this configuration, since the focal point of the original 34 is fixed, it is possible to shoot a stable image with a high focus ratio and prevent damage to the original reading section 21 at the same time. Further, the prism portion 18 is made to slightly protrude from the outer surface of the housing 43 of the mobile phone device 50. In Fig. 6, the size of 3.85mm is used, and by virtue of this structure, the thickness of the drop spider &amp;# 一 1 心 贝 1 and the device 1 that are housed inside the frame 43 are very thin (H2 = 3. ) () mm) 'is easy to mount on mobile phone devices that have become thinner and thinner in recent years. Also, by using the reading device of the present invention, it is possible to separately read the uneven surface such as fingerprints and the reading surface of information displayed in shades such as text or graphics, because for users, it can provide-very easy to use Information device. And, as shown in FIG. 5, a reading surface for reading information such as fingerprints is formed on the side where the mobile phone is cracked, and a reading surface such as text or graphics is set below the mobile phone 50. The reading surface of the light and shade display information can thereby provide a very easy-to-use reading of the mobile phone device 50 built in Cui by the user. Furthermore, if it is configured as an information device equipped with the aforementioned reading device, the user can be authenticated according to the fingerprint information of the user, and can read fox or 2 20

次:條碼等文件資訊，因此可提供_具有前所未有多功能 且咼安全性之資訊農置。 (第2實施形態） —接著，說明本發明之第2實施形態。第7圖為顯示本發 明第2實施形態之讀取裝置之構成的剖面圖。 22 200403596 而，本實施形態之讀取裝置61之構成要素中，與第丄 實施形態所示者具有侧翻之構成要素乃^相同標號 並省略說明。 本實施形態之讀取裝置61中，由於文字或圖形等以濃 淡顯示之資訊之讀取方式係同第丨實施形態所示，因此省略 說明。 讀取裝置61中，其指紋等以凹凸顯示之資訊之讀取方 式與第1實施形態所說明之讀取裝置1相異。Times: Document information such as barcodes, so it can provide information farms with unprecedented versatility and security. (Second Embodiment)-Next, a second embodiment of the present invention will be described. Fig. 7 is a sectional view showing the structure of a reading device according to a second embodiment of the present invention. 22 200403596 In addition, among the constituent elements of the reading device 61 of this embodiment, the constituent elements having a rollover as shown in the second embodiment are the same reference numerals, and descriptions thereof are omitted. In the reading device 61 of this embodiment, since the reading method of information displayed in shades such as text or graphics is the same as that described in the first embodiment, the description is omitted. In the reading device 61, the reading method of information such as fingerprints displayed as irregularities is different from the reading device 1 described in the first embodiment.

第1實施形態說明之讀取裝置丨中，讀取與其稜鏡部18 10之凹凸讀取面33接觸之指紋等以凹凸顯示之資訊時，係對 凹凸項取面33以垂直方向照射光後，檢測指紋等之凸面與 凹凸讀取部33接觸之部分之散亂光。In the reading device described in the first embodiment, when reading information displayed as irregularities, such as fingerprints, which are in contact with the uneven reading surface 33 of the central part 18 and 10, the light is irradiated on the uneven surface taking surface 33 in a vertical direction. , Detecting scattered light at a portion where a convex surface of a fingerprint or the like is in contact with the uneven reading portion 33.

另一方面，本實施形態之讀取裝置61中，讀取與其稜 鏡部18之凹凸讀取面33接觸之指紋等以凹凸顯示之資訊 15 時，則對凹凸讀取面33以入射角度超過臨界角以上來照射 要射入之全反射光線，並自指紋等之凸面與凹凸讀取面33 接觸之部分的散亂光中，檢測對凹凸讀取面33朝垂直方向 散亂之成分。 更詳細說明，自第1LED13照射之光線透過聚光部15聚 20 光後，射入由支撐構件69所支撐之第1導光機構67。第1導 光機構67中，光線朝第7圖中X軸方向直進，並於全反射面 90全反射後，射入稜鏡部丨8。 而，本實施形態之讀取裝置61中，由於使全反射面90 相對第7圖中X軸方向呈22.5。之角度，因此會以45。之角 23 200403596 度射入凹凸讀取面33。 於稜鏡部18，係以超過臨界角（BK7中約41。）之入 射角度射入凹凸讀取面33，因此若沒有與凹凸讀取面33接 觸之物時，所有光線會反射，射入第7圖中以左下之D所示 5 之面。使D所示之面可吸收光，例如預先進行黑色塗裝，以 使光線於D面被吸收。 凹凸讀取面33接觸到具有凹凸之物，例如手指63時， 其凸部與凹凸讀取面33光學密著之部分中，光線不會全反 射，而會擴散反射。擴散反射之光線中，第7圖之負γ軸方 10向之成分會於支撐構件70所支撐之第4導光機構81表面上 形成之半透鏡85反射’於GRIN透鏡23聚光，並以全反射機 構24全反射後，射入拍攝元件32，藉此將凸部分拍的較白 (亮度高），而將凹部分拍的較黑（亮度低）。 而，本實施形態之讀取裝置61中，係使半透鏡85相對 15第7圖中X軸方向呈45。之角度。而，支撐構件7〇可使用諸 如塑膠或橡膠等眾所皆知之材料。 當然，本實施形態之讀取裝置61亦與第丨實施形態之讀 取裝置1相同，GRIN透鏡23之共役長與拍攝以凹凸顯示之 資汛日^之光路長及拍攝以濃淡顯示之資訊時之光路長相 20同。換言之，第7圖中，由凹凸讀取面33上之點P1透過半透 鏡85面上之點P4到拍攝元件32上之點p3的光路長與由原稿 上34上之點P2透過半透鏡85面上之點P4到拍攝元件32上之 點P3的光路長，以及GRIN透鏡幻之共役長相等。 而，就實用性來說，2個光路長與grin透鏡23之共役 24 200403596 長偏差以被攝界深度以内’如約± 〇.5mm左右為佳。 使用前述讀取裝置61之構成中，對比良好之影像資訊 亦可取得文字或圖形等以濃淡顯示之資訊及指紋等以凹凸 顯示之資訊的2個不同屬性之資訊。 5 而，讀取資说之切換可猎切換點党之光源，即第 1LED13及第2LED14來簡單地進行。 (第3實施形態） 接著，說明本發明第3實施形態。第8圖為顯示本發明 第3實施形態之讀取裝置之構成的剖面圖。第9圖為其概略 10 立體圖。 本實施形態之讀取裝置71中，LED配置之位置，以及 可以光導向器代替第1導光機構17與第3導光機構22之構 成，與第1實施形態之讀取裝置1及第2實施形態之讀取裝置 61相異。如第9圖所示，第1LED96及第2LED97係構造成安 15 裝於讀取裝置71之側面，朝圖中Z軸方向照射光線。 藉讀取裝置71，拍攝指紋等以凹凸顯示之資訊時，係 使第1LED96照射。第8圖或第9圖中，照射於Z軸方向之光 線藉光導向器93使方向改變為Y軸方向。而，光導向器93 可使用諸如用於LCD顯示器等眾所皆知之擴散板、導光板 20 或折射格子等。 藉光導向器93使其方向改變為Y軸方向之光線以垂直 方向（Y軸方向）射入稜鏡部18。之後，可如第1實施形態 所述者相同地拍攝指紋等以凹凸顯示之資訊。稜鏡部18由 支撐構件92支撐。支撐構件92可使用諸如塑膠或橡膠等眾 25 200403596 所皆知之材料。 接著，讀取裝置71中，拍攝（讀取）文字或圖形等以 濃淡顯示之資訊時，係使第2LED97照射。第8圖及第9圖 中，照射於Z軸方向之光線，藉光導向器94使方向改變為X 5 軸方向，並以線性菲涅耳等配光機構95朝第8圖中向下折射 後，照射原稿34。原稿34之散亂光由GRIN透鏡23聚光並以 拍攝元件32拍攝。這與第1實施形態之讀取裝置1及第2實施 形態之讀取裝置61相同。 該光導向器94可使用諸如用於LCD顯示器等眾所皆知 10 之擴散板、導光板或折射格子等。 如此，藉本實施形態之讀取裝置71，可與第1實施形態 之讀取裝置1及第2實施形態之讀取裝置61相同地拍攝以文 字或圖形等以濃淡顯示之資訊及指紋等以凹凸顯示之資 訊。 15 再者，本實施形態之讀取裝置71係構造成不使用第1 導光機構及第3導光機構，而是將LED配置於裝置之側面而 使用光導向器，藉此可實現資訊裝置之進一步輕薄化。 本實施形態之讀取裝置71中，可使L=9.95mm、 Hl=3.85mm、H2=2.7mm，且，使第8圖中Η所示之部分的 20 厚度為H=2.00mm。如此，使第8圖中Η所示之部分變薄、中 間細，藉此可實現一將讀取裝置71安裝於行動電話裝置等 時易於決定位置等之構成。 (第4實施形態） 第10圖為顯示本發明第4實施形態之讀取裝置之構成 26 的剖面圖。第11圖為其立體圖。以下之圖式中，為便於說 明，乃記載有XYZ之3軸方向。 第10圖中，本實施形態之讀取裝置101於同一基板112 上配置有LED等第1光源部102與第2光源部103,以及CMOS 或CCD等拍攝元件ill。又，基板112上以接著等方法安裝 有光學元件113。而，本實施形態之拍攝元件ill乃使用橫 X縱=256x 16像素之CMOS感測器。 光學元件113由透明光學材料構成之第1導光機構104 與第2導光機構109，以及稜鏡部1〇5所構成。本實施形態所 顯示之例為光學元件113皆以丙烯所形成者。 而，第1光源部102與第1導光機構104間以及第2光源部 1〇3與第2導光機構109間亦可設置用以將來自光源部之光 加以聚光之電容透鏡或菲涅耳透鏡等距光光學系統。 稜鏡部105具有使自第1光源部1〇2射出之光線全反射 之第1傾斜面106及使自第2光源部103射出之光線全反射之 第2傾斜面1〇7。再者，稜鏡部1〇5於第1傾斜面1〇6與第2傾 斜面107間並具有用於讀取原稿或指紋等時之讀取面1〇8。 如圖所示，本實施形態中，係使第1傾斜面1〇6相對於 來自第1光源部102之光線的光軸方向（第10圖中χ軸方向） 所呈之角度α為15。又，第2傾斜面107相對於來自第2光源 σΡ 103之光線的光轴方向（第1〇圖中χ轴方向）所呈之角度 /3 為22.5。。 再者，本實施形態之讀取裝置101中，為以拍攝元件lu 將於讀取面108散亂之散亂光加以受光，乃設有第3導光機 構 110 〇 本實施形態中，第3導光機構110之例係顯示一使用複 數圓筒形之折射率分布型透鏡，即GRiN(GRadientlNdex) 透鏡陣列之構成，且其物點與焦點，即表示共役點間之距 離的共役長由拍攝元件111之拍攝面至讀取面108為止之長 度大致相同。本實施形態之讀取裝置1〇1中，共役長約 ，而，讀取裝置1〇1之¥軸方向寬度為ι6ιηπι。 又，為防止光漏出，第1導光機構104及第2導光機構109 與第3導光機構110及空間部114間之境界面宜塗裝成黑色。 接著，說明以前述讀取裝置101進行影像讀取時之動 作。 首先’就讀取對象為文字或圖形等以濃淡顯示之資訊 時之影像讀取加以說明。 第12圖為用以說明本實施形態之讀取裝置中拍攝以濃 淡顯示之資訊時之動作的概略圖。 首先，使第1光源部102發光。來自第1光源部1〇2之光 線透過第1導光機構104射入稜鏡部105。由於第丨導光機構 104與稜鏡部105係緊密接著而使其不產生光學間隙，因此 第1導光機構104與稜鏡部105間之境界面不會產生折射。 接著，光線射入第1傾斜面106。第1傾斜面1〇6設置成 相對光線之光軸所呈之角度α為15°，因此光線會於第1傾 斜面106全反射（入射角為90。一 15。=75。。丙烯之臨界 角約為42° )，並以角度α X 2=30°射入讀取面1〇8。 由於讀取面108上入射角為30° ，因此不會產生全反 射’光線會由讀取面108向外側射出。 由讀取面108射出之光射入配置於讀取面108附近之文 予或圖形等原稿121之表面後，於文字或圖形之著色淡之部 分’即白色部分散亂，並於著色濃之部分，即黑色部分吸 收。 部分於原稿121之白色部分散亂之散亂光再次由讀取 面108射入讀取裝置101。接著，朝向散亂光之拍攝元件ιη 的成分由第3導光機構110聚光，並由拍攝元件拍的較 免〇 另一方面，由於原稿121之黑色部分所吸收之光不會射 入％取裝置101，因此原稿121之黑色部分會由拍攝元件U1 拍的較暗。 藉此’可以讀取裝置101拍攝文字或圖形等以濃淡顯示 之資訊。 接著，就讀取之對象為指紋等以凹凸顯示之資訊時之 影像讀取進行說明。 第13圖為用以說明本實施形態之讀取裝置中拍攝以凹 凸顯示之資訊時之動作的概略圖。 此日守，首先使第2光源部1〇3發光。來自第2光源部1〇3 之光線透過第2導光機構109射入稜鏡部1〇5。由於第2導光 機構應與稜鏡則㈣緊密接著而使其不產生光學間隙， 因此第2導光機構與稜鏡部⑽間之境界面不會產生折 射或反射等。 接者，光線射入第2傾斜面107。第2傾斜面1〇7設置成 200403596 相對光線之光軸所呈之角度/3為22.5° ，因此光線會於第2 傾斜面107全反射（入射角為90° —22.5。=67.5。），並以 角度/3 X 2=45°射入讀取面108。 由於讀取面108上入射角未超過45°與臨界角，因此光 5 會全反射，而不會由讀取裝置101跑到外面（由丙烯射向空 氣中時之臨界角約為42° )。 惟，使手指122與讀取面108緊密接觸時，指紋凹凸之 凸部分與讀取面緊密接觸之部分中，如第13圖所示，讀取 面108上光會散亂。指紋之凹部份中，由於與讀取面108間 10 有空間，因此光不會散亂，而會於讀取面108全反射。 指紋之凸部分與讀取面108間散亂之散亂光再次由讀 取面108射入讀取裝置101。接著，朝向散亂光之拍攝元件 111之部分由第3導光機構110聚光，並由拍攝元件111拍的 較亮。 15 另一方面，由指紋之凹部分與讀取面108間有空間之部 分全反射之光會由拍攝元件111拍的較暗。 藉此，除文字或圖形等以濃淡顯示之資訊外，亦可以 讀取裝置101拍攝指紋等以凹凸顯示之資訊。藉本發明之讀 取裝置，拍攝指紋圖形時之凹部分中，光線於讀取面會朝 20 拍攝元件以外之方向全反射，因此可獲得相較於習知黑等 級較低而對比良好之影像。 而，第10圖中，顯示第1傾斜面106與來自第1光源部102 之光線之光軸（X軸）方向所呈之角度α為15°之情形。根 據檢討，角度α以朝第1傾斜面106射入之入射角為產生全 30 200403596On the other hand, in the reading device 61 of this embodiment, when reading information 15 displayed on the uneven surface such as a fingerprint that is in contact with the uneven reading surface 33 of the crotch portion 18, the incident angle on the uneven reading surface 33 exceeds Above the critical angle, the total reflected light to be incident is irradiated, and from the scattered light of the portion where the convex surface of the fingerprint or the like is in contact with the uneven reading surface 33, a component that scatters the uneven reading surface 33 in the vertical direction is detected. In more detail, after the light irradiated from the first LED 13 passes through the light-condensing section 15 to condense 20 light, it enters the first light guide mechanism 67 supported by the support member 69. In the first light guide mechanism 67, the light rays travel straight in the X-axis direction in FIG. 7 and are totally reflected by the total reflection surface 90, and then enter the ridge 8. In addition, in the reading device 61 of this embodiment, the total reflection surface 90 is made 22.5 with respect to the X-axis direction in FIG. 7. The angle will therefore be 45. The angle 23 200403596 is incident on the uneven reading surface 33. In the crotch 18, the concave-convex reading surface 33 is incident at an incident angle exceeding a critical angle (about 41 in BK7). Therefore, if there is no object that is in contact with the concave-convex reading surface 33, all light will be reflected and incident. Face 5 is shown by D in the lower left in Figure 7. The surface indicated by D can be made to absorb light, for example, black coating is performed in advance so that the light is absorbed on the D surface. When the concave-convex reading surface 33 is in contact with a concave-convex object, such as a finger 63, in the portion where the convex portion and the concave-convex reading surface 33 are optically close, light will not be totally reflected, but will diffuse and reflect. Of the diffusely reflected light, the components in the negative γ-axis direction 10 in FIG. 7 are reflected on the semi-lens 85 formed on the surface of the fourth light guide mechanism 81 supported by the support member 70 to be condensed by the GRIN lens 23 and focused by After the total reflection mechanism 24 is totally reflected, it is incident on the imaging element 32, so that the convex part is shot whiter (higher brightness), and the concave part is shot blacker (lower brightness). In the reading device 61 of this embodiment, the half lens 85 is 45 with respect to the X-axis direction in FIG. 7 and FIG. Angle. However, a well-known material such as plastic or rubber may be used as the support member 70. Of course, the reading device 61 of this embodiment is also the same as the reading device 1 of the first embodiment. The co-commander of the GRIN lens 23 and the length of the light path of the flood season ^ which is displayed as a bump and the information displayed in the shade are recorded. The light path looks the same as 20. In other words, in FIG. 7, the optical path length from the point P1 on the uneven reading surface 33 through the point P4 on the half lens 85 to the point p3 on the imaging element 32 and the point P2 on the document 34 through the half lens 85 The length of the optical path from the point P4 on the plane to the point P3 on the imaging element 32 is equal to the co-operation length of the GRIN lens. In terms of practicality, the co-operation of the two optical path lengths and the grin lens 23 24 200403596 is preferably within a range of the depth of the photographic circle ', such as about ± 0.5 mm. In the configuration of the aforementioned reading device 61, the image information with good contrast can also obtain information of two different attributes, such as text or graphics, which are displayed in shades, and fingerprints, which are displayed in irregularities. 5 In addition, the switching of reading information can be performed simply by switching to the light source of the switching point party, namely, the first LED13 and the second LED14. (Third Embodiment) Next, a third embodiment of the present invention will be described. Fig. 8 is a sectional view showing the structure of a reading device according to a third embodiment of the present invention. Figure 9 is a schematic 10 perspective view. In the reading device 71 of this embodiment, the positions of the LEDs and the configuration in which the light guide can replace the first light guiding mechanism 17 and the third light guiding mechanism 22 are the same as the reading devices 1 and 2 of the first embodiment. The reading device 61 of the embodiment is different. As shown in FIG. 9, the first LED96 and the second LED97 are structured so as to be mounted on the side of the reading device 71 and irradiate light toward the Z-axis direction in the figure. When the reading device 71 is used to capture information such as fingerprints, which is displayed as unevenness, the first LED 96 is illuminated. In Fig. 8 or Fig. 9, the light irradiated in the Z-axis direction is changed to the Y-axis direction by the light guide 93. However, as the light guide 93, a well-known diffusion plate, a light guide plate 20, a refraction grid, or the like can be used, such as those used in LCD displays. The light having its direction changed to the Y-axis direction by the light guide 93 is incident on the crotch portion 18 in the vertical direction (Y-axis direction). After that, information such as fingerprints can be photographed in the same manner as described in the first embodiment. The crotch portion 18 is supported by a support member 92. The support member 92 may be made of a material known from 25 200403596, such as plastic or rubber. Next, in the reading device 71, when photographing (reading) information such as text or graphics displayed in shades, the second LED 97 is illuminated. In FIGS. 8 and 9, the light irradiated in the Z-axis direction is changed to the X 5 -axis direction by the light guide 94, and is refracted downward by a light distribution mechanism 95 such as a linear Fresnel toward the 8th FIG. Then, the original document 34 is irradiated. The scattered light of the original document 34 is condensed by the GRIN lens 23 and captured by the imaging element 32. This is the same as the reading device 1 of the first embodiment and the reading device 61 of the second embodiment. As the light guide 94, a well-known diffuser plate, a light guide plate, a refraction grid, or the like can be used. In this way, with the reading device 71 of this embodiment, it is possible to photograph information such as text or graphics displayed in shades, fingerprints, etc. in the same manner as the reading device 1 of the first embodiment and the reading device 61 of the second embodiment. Bump display information. 15 Furthermore, the reading device 71 of this embodiment is configured so that the first light guide mechanism and the third light guide mechanism are not used, and the LED is disposed on the side of the device and a light guide is used, thereby realizing the information device. Further thinning. In the reading device 71 of this embodiment, L = 9.95mm, H1 = 3.85mm, and H2 = 2.7mm, and the thickness of the portion 20 shown by Η in FIG. 8 is H = 2.00mm. In this way, the portion indicated by Η in FIG. 8 is thinned and the center is thin, thereby realizing a configuration in which the position and the like can be easily determined when the reading device 71 is mounted on a mobile phone device or the like. (Fourth Embodiment) Fig. 10 is a sectional view showing the structure 26 of a reading device according to a fourth embodiment of the present invention. Figure 11 is a perspective view thereof. In the following drawings, for the convenience of explanation, the three-axis directions of XYZ are shown. In FIG. 10, the reading device 101 of this embodiment has a first light source section 102 such as an LED, a second light source section 103, and an imaging element such as a CMOS or a CCD on the same substrate 112. An optical element 113 is mounted on the substrate 112 by a method such as bonding. In addition, the imaging element ill of this embodiment uses a CMOS sensor with horizontal X vertical = 256 × 16 pixels. The optical element 113 is composed of a first light guide mechanism 104 and a second light guide mechanism 109 made of a transparent optical material, and a crotch 105. The example shown in this embodiment is one in which the optical elements 113 are all made of acrylic. In addition, a capacitor lens or a Philippine lens for condensing light from the light source section may be provided between the first light source section 102 and the first light guide mechanism 104 and between the second light source section 103 and the second light guide mechanism 109. Neal lens isometric light optical system. The crotch portion 105 includes a first inclined surface 106 that totally reflects light emitted from the first light source portion 102 and a second inclined surface 107 that totally reflects light emitted from the second light source portion 103. In addition, the crotch portion 105 is provided between the first inclined surface 106 and the second inclined surface 107 and has a reading surface 108 for reading an original document or a fingerprint. As shown in the figure, in this embodiment, the angle α of the first inclined surface 106 with respect to the optical axis direction of the light from the first light source section 102 (the x-axis direction in FIG. 10) is 15. The angle / 3 of the second inclined surface 107 with respect to the optical axis direction of the light from the second light source σP 103 (the x-axis direction in FIG. 10) / 3 is 22.5. . In addition, in the reading device 101 of this embodiment, a third light guide mechanism 110 is provided to receive scattered light scattered on the reading surface 108 by the imaging element lu. In this embodiment, the third The example of the light guide mechanism 110 shows a composition using a plurality of cylindrical refractive index distribution lenses, that is, a GRiN (GRadientlNdex) lens array, and its object point and focal point, that is, the distance between the co-operation points. The length from the imaging surface to the reading surface 108 of the element 111 is substantially the same. In the reading device 101 of this embodiment, the co-service length is about 1500 Å, and the width in the axial direction of the reading device 101 is ι6ιηπι. In order to prevent light leakage, the boundary surfaces between the first light guide mechanism 104 and the second light guide mechanism 109 and the third light guide mechanism 110 and the space 114 should be painted black. Next, an operation when an image is read by the reading device 101 will be described. First, we will explain the image reading when the information to be read is text or graphics displayed in shades. Fig. 12 is a schematic diagram for explaining an operation when photographing information displayed in gradation in the reading device of this embodiment. First, the first light source unit 102 is caused to emit light. The light rays from the first light source section 102 pass through the first light guide mechanism 104 and enter the ridge section 105. Since the first light guiding mechanism 104 and the crotch 105 are closely connected so that no optical gap is generated, the boundary interface between the first light guiding mechanism 104 and the crotch 105 will not be refracted. Then, the light is incident on the first inclined surface 106. The first inclined surface 106 is set to an angle α of 15 ° with respect to the optical axis of the light. Therefore, the light will be totally reflected on the first inclined surface 106 (the incident angle is 90.-15. = 75 .. The criticality of acrylic The angle is about 42 °), and it is incident on the reading surface 108 at an angle α X 2 = 30 °. Since the incident angle on the reading surface 108 is 30 °, no total reflection 'light is emitted from the reading surface 108 to the outside. The light emitted from the reading surface 108 enters the surface of the original 121 such as a text or a figure arranged near the reading surface 108, and is scattered in the light colored portion of the text or the graphic, that is, the white portion, and the colored portion Part, that is, the black part is absorbed. The scattered light partially scattered in the white portion of the original 121 is incident on the reading device 101 through the reading surface 108 again. Next, the components of the imaging element ιη toward the scattered light are condensed by the third light guide mechanism 110, and are more easily taken by the imaging element. On the other hand, the light absorbed by the black part of the original 121 will not be incident into the% Take the device 101, so the black part of the original 121 will be shot darker by the imaging element U1. In this way, it is possible to read information such as text or graphics captured by the device 101 in light and shade. The following is an explanation of image reading when the read object is information displayed in a bump such as a fingerprint. Fig. 13 is a schematic diagram for explaining an operation when photographing information displayed in a concave and convex manner in the reading device of this embodiment. On this day, first, the second light source unit 103 is caused to emit light. The light from the second light source unit 103 passes through the second light guide mechanism 109 and enters the hip unit 105. Since the second light guide mechanism should be closely adhered to the air filter so that no optical gap is generated, the boundary interface between the second light guide mechanism and the crotch will not cause refraction or reflection. Then, the light enters the second inclined surface 107. The second inclined plane 107 is set to an angle of 4032003 relative to the optical axis of the light ray is 22.5 °, so the light will be totally reflected on the second inclined plane 107 (incident angle is 90 °-22.5. = 67.5.), It is incident on the reading surface 108 at an angle / 3 X 2 = 45 °. Because the incident angle on the reading surface 108 does not exceed 45 ° and the critical angle, the light 5 will be totally reflected without the reading device 101 running outside (the critical angle when the acrylic is shot into the air is about 42 °) . However, when the finger 122 is brought into close contact with the reading surface 108, as shown in Fig. 13, the convex portion of the fingerprint unevenness is in close contact with the reading surface, and the light on the reading surface 108 is scattered. Since there is space between the concave portion of the fingerprint and the reading surface 108, the light will not be scattered and will be totally reflected on the reading surface 108. The scattered light scattered between the convex portion of the fingerprint and the reading surface 108 is again incident on the reading device 101 through the reading surface 108. Next, the portion of the imaging element 111 facing the scattered light is condensed by the third light guide mechanism 110, and is captured brighter by the imaging element 111. 15 On the other hand, light that is totally reflected by a portion having a space between the concave portion of the fingerprint and the reading surface 108 will be darkened by the imaging element 111. In this way, in addition to the information displayed in shades such as text or graphics, it is also possible to read the information displayed in bumps such as fingerprints taken by the device 101. With the reading device of the present invention, in the concave part when photographing a fingerprint pattern, the light on the reading surface will be totally reflected in a direction other than 20 imaging elements, so a better contrast image can be obtained compared to the conventional black level. . 10 shows a case where the angle α between the first inclined surface 106 and the optical axis (X-axis) direction of the light from the first light source section 102 is 15 °. According to the review, the angle α takes the angle of incidence of incident on the first inclined plane 106 as the full 30 200403596

反射之角度，即超過臨界角之角度，且，朝讀取面108射入 之入射角為不會產生全反射之角度，即未滿臨界角之角度 為佳。換言之，若以R為臨界角，必須滿足以下2式。 R^90- a 5 2x a &lt;R 在實用上，只要滿足以下式即可。 0&lt; a &lt; (R/2) 材料為丙烯時，由於R=42° ，因此以下式為佳。 0° &lt; α &lt;21° 10 且，以下式更為佳。 10。&lt; α &lt;21° 這是因為，若α太小，光線會以接近垂直之角度射入 讀取面108，有時會拾取到來自原稿121之黑色部分之反射 光，因而使對比惡化。 15 接著，角度/3以朝第2傾斜面107射入之入射角為產生 全反射之角度，即超過臨界角R之角度為佳，且，朝讀取面 108射入之入射角亦以為會產生全反射之角度，即超過臨界 角之角度為佳。換言之，若以R為臨界角，必須滿足以下2 式。 20 R^90- β R^2x β 在實用上，只要滿足以下式即可。The angle of reflection, that is, the angle exceeding the critical angle, and the angle of incidence incident on the reading surface 108 is an angle that does not cause total reflection, that is, an angle that is less than the critical angle. In other words, if R is a critical angle, the following two expressions must be satisfied. R ^ 90- a 5 2x a &lt; R In practical terms, it suffices if the following formula is satisfied. 0 &lt; a &lt; (R / 2) When the material is propylene, the following formula is preferred because R = 42 °. 0 ° &lt; α &lt; 21 ° 10 Furthermore, the following formula is more preferable. 10. &lt; α &lt; 21 ° This is because, if α is too small, light will enter the reading surface 108 at a nearly vertical angle, and sometimes the reflected light from the black portion of the original 121 will be picked up, thereby deteriorating the contrast. 15 Next, for angle / 3, the incident angle of incidence on the second inclined surface 107 is the angle that generates total reflection, that is, the angle that exceeds the critical angle R is preferred, and the incident angle of incidence on the reading surface 108 is also considered to be The angle that produces total reflection, that is, the angle that exceeds the critical angle is preferred. In other words, if R is the critical angle, the following two expressions must be satisfied. 20 R ^ 90- β R ^ 2x β In practical terms, it only needs to satisfy the following formula.

(R/2) ^ β ^90-R 材料為丙烯時，由於R=42° ，因此以下式為佳。 31 200403596 21° &lt; /5 &lt;48。 且，以下式更為佳。 21° &lt; /5 &lt;30。 這是因為，若/3太大，會以較大之入射角射入讀取面 5⑽，取得指紋影像時，來自指紋之.凸部分與讀取面⑽接 觸之部分中，拍攝元件ιη方向之成分會變小，有時會使對 比惡化。 藉本實施形態之讀取裝置101，讀取對象為以濃淡顯示 ，資訊時’只要使第【光源部1〇2點亮來拍攝影像即可，而· ίο讀取對象為以凹凸顯示之資訊時，則只要使第2光源部1〇3 點亮來拍攝影像即可。換言之，利用選擇點亮之光源部的 單純構成，便可由同-讀取面⑽以良好對比拍攝文字或圖 形等以濃淡顯示之資訊與指紋等以凹凸顯示之資％。 又’本實施形態之讀取裂置中，乃使來自第i光源部ι〇2 15之光線之光軸、來自第2光源部1〇3之光線之光轴與自讀取 面108射人㈣元件1U之光狀料大致平行。藉該構 成’可將讀取裝置101之厚度變薄。第1〇圖所示之構成中，Φ 可使圖中Z軸方向之厚度為3mm。若進行將圓筒型之grin 透鏡之徑加以縮小等改良，便可進而輕薄化。如此，可提 20供一可輕易搭載至行動資訊裝置之讀取裝置。 而，本實施形態係顯示光學元件113之材料使用丙烯之 情形，但本發明並未受限於此。當然，亦包括聚碳酸酯或 玻璃等所有眾所皆知之光學材料。 又，本實施形態中，拍攝元件顯示第丨光源部及第2光 32 200403596 源部形成於同一基板上之例。此時，有讀取裝置之組裝易 於進行之優點，而本發明並未限定拍攝元件之位置。舉例 言之’如第14圖所示’拍攝元件lu當然亦可構造成第【光 源部102及第2光源部103不在同一基板上。 5 再者，本實施形態中，第3導光機構110之例顯示一使 用GRIN透鏡陣列之構成’但本發明並未受限於此，只要是 具有聚光作用之光學系統，當然亦包含於本發明中。 又，本實施形態顯示之例為代表第3導光機構11〇的 GRIN透鏡陣列之共役長由拍攝元件⑴至讀取面⑽之距 _ 10離相同者，但舉例言之，第3導光機構11G之共役長超過由 拍攝元件111至讀取面108之長度亦可。 藉月il述構成，如第15圖所示，將讀取裝置1〇1搭載於行 動貧訊裝置等時，可配置讀取襄置1〇1來使讀取面1〇8較行 動資訊裝置之框體13〇更為内側。此時，宜配置成使第3導 15光機構110之共役長拍攝元件111至框體130外側之距離C一 致。藉前述構成，可防止讀取面1〇8受到來自外部之機械損 傷等。 ® 又，本發明之讀取裝置，並未受限於如本實施形態所 不之光學元件113由第1導光機構1〇4、第2導光機構1〇9及稜 20鏡部105構成。如第16圖所示，亦可構造成光學元件151以 壓製成形等眾所皆知之方法一體來形成第丨導光機構、第2 導光機構及稜鏡部之構造。 (第5實施形態） 接著，第5實施形態顯示本發明讀取裝置之另一構成。 33 第17圖為本發明第5實施形態之讀取裝置的立體圖，第 18圖為其剖面圖。 而，為便於說明，與第1實施形態所示之構成要件相同 之構成要件則標以相同符號，並省略說明。 本貫施形態之讀取裝置161相較於第4實施形態所說明 之靖取叙置101，不同處在於其讀取面1〇8兩侧（第17圖中γ 軸方向兩側）設有突起部142。 藉没置前述突起部142，可使讀取面1〇8不會直接接觸 作為頌取對象之原稿等，因此可以保護其不受摩擦或髒污 等表面傷害。 再者，別述構成在取得指紋圖形時，可以沒有讀取面 108中沒有突起部142之中央部分來取得指紋影像。 而，該構成中，第3導光機構110之共役長與拍攝元件 111至突起部142前端部分之距離E宜大致相等，係為了將文 子或圖形等以濃淡顯示之資訊影像拍攝的更鮮明。再者， 為了將指紋等以凹凸顯示之資訊拍攝的更鮮明，被攝界深 度以可將拍攝元件111至讀取面108之距離D與拍攝元件111 至突起部142前端部分之距離£加以遮蓋為佳。 (第6實施形態） 再者’第6實施形態顯示本發明之讀取裝置之另一構 成。 第19圖為本發明第6實施形態之讀取裝置的立體圖，第 20圖為其剖面圖。 而’為便於說明，與第4實施形態所示之構成要件相同 200403596 之構成要件則標以相同符號，並省略說明。 本貫施形態之讀取裝置162相較於第1實施形態所說明 之讀取裝置101，不同處在於其讀取面148中丫軸方向兩端部 分係以曲面構成。 5 藉使讀取面148之兩端部分呈曲面，除可獲得第1實施 形態所述之讀取裝置1〇丨之效果外，可使讀取面148之中央 部分不會直接接觸作為讀取對象之原稿等，因此可以保護 其不受摩擦或髒污等表面傷害。 再者，以前述構成取得指紋圖形時，如第5實施形態之 10 讀取裝置161，由於沒有突起部142，因此讀取面148之Y軸 方向之全域皆可作為讀取面。 而，該構成中，如第20圖所示，第3導光機構110之共 役長與拍攝元件111至讀取面148之最大距離G宜大致相 等，係為了將文字或圖形等以濃淡顯示之資訊影像拍攝的 15 更鮮明。再者，為了將指紋等以凹凸顯示之資訊拍攝的更 鮮明，GRIN透鏡之被攝界深度以可將拍攝元件111至讀取 面148之最大距離G與拍攝元件111至讀取面丨48之最小距離 F加以遮蓋為佳。 而，本實施形態之讀取裝置162中，係顯示讀取面148 20 於Y軸方向為凹面，但本發明之讀取裝置162並未受限於使 此。舉例言之，於z軸方向為凹面當然亦具有防止損傷之效 果。 產業上之利用可能性 如上所述’本發明之光學元件及讀取裝置無論是指紋 35 200403596 等凹凸顯示之資訊或是文字或圖形等以濃淡顯示之資訊都 可獲得對比良好之影像，且具有可輕薄化之效果，因此就 讀取文字或圖形等以濃淡顯示之資訊或指紋等以凹凸顯示 之資訊的光學元件及讀取裝置等而言十分有用。 5 【_式簡單說明】 第1圖係顯示本發明第1實施形態之讀取裝置之構成的 剖面圖。 第2 (a)圖係顯示本發明第1實施形態之讀取裝置之構 成的立體圖。 10 第2 (b)圖係顯示本發明第1實施形態之讀取裝置之構 成的平面圖。 第3圖係用以說明本發明第1實施形態之讀取裝置拍攝 以凹凸顯示之資訊時的動作之圖。 第4圖係用以說明本發明第1實施形態之讀取裝置拍攝 15 以》辰淡顯示之貧訊時的動作之圖。 第5 (a)圖係顯示搭載有本發明第1實施形態之讀取裝 置的行動電話裝置構成之正面圖。 第5 (b)圖係顯示本發明第1實施形態之行動電話裝置 中搭载有讀取裝置之部分之要部立體圖。 20 第6圖係顯示本發明第1實施形態之行動電話裝置中搭 載有讀取裝置之部分之要部剖面圖。 第7圖係顯示本發明第2實施形態之讀取裝置之構成的 剖面圖。 第8圖係顯示本發明第3實施形態之讀取裝置之構成的 36 200403596 剖面圖。 第9圖係顯示本發明第3實施形態之讀取裝置之構成的 概略立體圖。 第10圖係顯示本發明第4實施形態之讀取裝置之構成 5 的剖面圖。 第11圖係顯示本發明第4實施形態之讀取裝置之構成 的立體圖。 第12圖係用以說明本發明第4實施形態之讀取裝置讀 取以濃淡顯示之資訊時的動作之圖。 10 第13圖係用以說明本發明第4實施形態之讀取裝置讀 取以凹凸顯示之資訊時的動作之圖。 第14圖係顯示本發明第4實施形態之讀取裝置之另一 構成的剖面圖。 第15圖係顯示本發明第4實施形態之讀取裝置之又一 15 構成的剖面圖。 第16圖係顯示本發明第4實施形態之讀取裝置之再一 構成的剖面圖。 第17圖係顯示本發明第5實施形態之讀取裝置之構成 的立體圖。 20 第18圖係顯示本發明第5實施形態之讀取裝置之構成 的剖面圖。 第19圖係顯示本發明第6實施形態之讀取裝置之構成 的立體圖。 第20圖係顯示本發明第6實施形態之讀取裝置之構成 37 200403596 的平面圖。 第21圖係用以說明習知讀取裝置之構成之圖。 【圖式之主要元件代表符號表】 1，61，71，101，161，162......讀取 40,90.. ....全反射面 裝置 43,130 ..…框體 11...... 第1基板 50····., .行動電話裝置 12...... 第2基板 51…… .天線部 13,96.. •…第1LED 52...... .擴音部 14,97.. •…第2LED 53...... .顯示部 15,16.. ....聚光部 54…… .按鍵部 17,67，104……第1導光機構 55...... .通話部 18,105 ......稜鏡部 63,122 ......手指 19,109 ......第2導光機構 69,70,92……支撐構件 20,81.. ....第4導光機構 93,94. · 21...... 原稿讀取部 95…… .配光機構 22,110, ......第3導光機構 102···· ..第1光源部 23...... .GRIN透鏡 103···· ..第2光源部 24...... .全反射機構 106···. u第1傾斜面 25,85.. ....半透鏡 107···· • •第2傾斜面 27…… .折射面 108,148......讀取面 28,29,30,31……遮蔽構件 112.... ..基板 32,111 ......拍攝元件 113,151……光學元件 33…·· .凹凸讀取面 142···· ..突起部 34,121 ......原稿(R / 2) ^ β ^ 90-R When the material is acrylic, the following formula is preferred because R = 42 °. 31 200403596 21 ° &lt; / 5 &lt; 48. The following formula is more preferable. 21 ° &lt; / 5 &lt; 30. This is because if / 3 is too large, it will enter the reading surface 5⑽ at a larger incident angle. When a fingerprint image is obtained, the part of the fingerprint that is in contact with the reading surface ， in the direction of the imaging element The composition becomes smaller and sometimes worsens the contrast. With the reading device 101 of this embodiment, the reading object is displayed in light and shade. When information is used, “the light source unit 102 is illuminated to capture an image, and the reading object is information displayed in a bump. In this case, the second light source unit 103 may be turned on to capture an image. In other words, by using the simple configuration of the light source portion that is selected to be lit, the same-reading surface can be used to capture text or graphics with good contrast and the information such as fingerprints displayed in bumps with good contrast. In addition, in the reading splitting of this embodiment, the optical axis of the light from the i-th light source section 2052, the optical axis of the light from the second light source section 103, and the self-reading surface 108 are shot. The light material of the cymbal element 1U is substantially parallel. With this configuration, the thickness of the reading device 101 can be reduced. In the structure shown in FIG. 10, Φ can make the thickness in the Z-axis direction of the figure be 3 mm. Improvements such as reducing the diameter of the cylindrical grin lens can further reduce the weight. In this way, a reading device that can be easily mounted on a mobile information device can be provided. The present embodiment shows a case where acrylic is used as the material of the optical element 113, but the present invention is not limited to this. Of course, it also includes all well-known optical materials such as polycarbonate or glass. In this embodiment, the imaging element displays an example in which the first light source section and the second light source are formed on the same substrate. At this time, there is an advantage that assembly of the reading device is easy to perform, and the present invention does not limit the position of the imaging element. For example, as shown in FIG. 14, the imaging element lu may be structured such that the [light source section 102 and the second light source section 103 are not on the same substrate. 5 Furthermore, in this embodiment, the example of the third light guide mechanism 110 shows a structure using a GRIN lens array, but the present invention is not limited to this, as long as it is an optical system having a light-concentrating effect, it is of course also included in In the present invention. In addition, the example shown in this embodiment is an example in which the distance from the imaging element ⑴ to the reading surface 10 of the GRIN lens array of the third light guide mechanism 110 is the same, but for example, the third light guide The cooperating length of the mechanism 11G may exceed the length from the imaging element 111 to the reading surface 108. According to the description of the structure, as shown in FIG. 15, when the reading device 100 is mounted on a mobile poor-sense device, etc., the reading device 101 can be configured to make the reading surface 108 more than the mobile information device. The frame body 13 is more inside. At this time, it should be arranged so that the distance C between the co-operating imaging element 111 of the third light guide unit 110 and the outside of the frame 130 is consistent. With the foregoing configuration, the reading surface 108 can be protected from external mechanical damage and the like. ® Furthermore, the reading device of the present invention is not limited to the optical element 113 as in this embodiment, which is constituted by the first light guide mechanism 104, the second light guide mechanism 109, and the prism 20 mirror 105. . As shown in FIG. 16, the optical element 151 may be configured to integrally form a structure of the second light guide mechanism, the second light guide mechanism, and the crotch by a well-known method such as press molding. (Fifth Embodiment) Next, a fifth embodiment shows another configuration of the reading device of the present invention. Fig. 17 is a perspective view of a reading device according to a fifth embodiment of the present invention, and Fig. 18 is a sectional view thereof. For convenience of explanation, the same constituent elements as those shown in the first embodiment are denoted by the same reference numerals, and descriptions thereof are omitted. The reading device 161 of this embodiment is different from the description 101 in the fourth embodiment in that the reading device 161 is provided on both sides of the reading surface 108 (both sides in the γ-axis direction in FIG. 17). The protruding portion 142. By not arranging the above-mentioned protrusion 142, the reading surface 108 can be prevented from directly contacting the manuscript or the like as the object of chanting, and therefore it can be protected from surface damage such as friction or dirt. In addition, when the fingerprint pattern is acquired, the fingerprint image can be acquired without the central portion of the reading surface 108 without the protrusion 142. In this configuration, the co-operator of the third light guide mechanism 110 and the distance E from the imaging element 111 to the front end portion of the protruding portion 142 should be substantially equal, in order to shoot the information image such as text or graphics more clearly. In addition, in order to capture more vivid information such as fingerprints and other information displayed with unevenness, the depth of the photographic field is covered by the distance D from the imaging element 111 to the reading surface 108 and the distance from the imaging element 111 to the front end of the protrusion 142. Better. (Sixth embodiment) Furthermore, a sixth embodiment shows another configuration of the reading device of the present invention. Fig. 19 is a perspective view of a reading device according to a sixth embodiment of the present invention, and Fig. 20 is a sectional view thereof. For the convenience of explanation, the constituent elements that are the same as the constituent elements shown in the fourth embodiment 200403596 are denoted by the same reference numerals, and descriptions thereof are omitted. The reading device 162 of this embodiment is different from the reading device 101 described in the first embodiment in that both ends of the reading surface 148 in the Y-axis direction are formed by curved surfaces. 5 If both ends of the reading surface 148 are curved, in addition to obtaining the effect of the reading device 10 described in the first embodiment, the central portion of the reading surface 148 may not be directly contacted for reading. The originals of the subject can be protected from surface damage such as friction or dirt. When the fingerprint pattern is obtained with the aforementioned configuration, as in the reading device 161 of the fifth embodiment, since there is no protrusion 142, the entire area in the Y-axis direction of the reading surface 148 can be used as the reading surface. In this configuration, as shown in FIG. 20, the co-operator of the third light guide mechanism 110 and the maximum distance G of the imaging element 111 to the reading surface 148 should be substantially equal, in order to display characters or graphics in shades of light. 15 of the information image shooting are more vivid. In addition, in order to capture fingerprints and other information more clearly with convex and concave information, the depth of the GRIN lens can be set to the maximum distance G between the imaging element 111 and the reading surface 148 and the imaging element 111 to the reading surface. It is better to cover the minimum distance F. The reading device 162 of this embodiment shows that the reading surface 148 20 is concave in the Y-axis direction, but the reading device 162 of the present invention is not limited to this. For example, a concave surface in the z-axis direction also has the effect of preventing damage. The industrial possibility is as described above. 'The optical element and the reading device of the present invention can obtain a good contrast image regardless of whether the information is displayed as unevenness such as fingerprints 35 200403596 or the information displayed in shades such as text or graphics. The effect of lightening and thinning is very useful for optical elements and reading devices that read information displayed in shades such as text or graphics, or fingerprints and other information displayed in concavities and convexities. [Simplified description of _Form] Fig. 1 is a sectional view showing the structure of a reading device according to the first embodiment of the present invention. Fig. 2 (a) is a perspective view showing the structure of the reading device according to the first embodiment of the present invention. 10 Figure 2 (b) is a plan view showing the structure of the reading device according to the first embodiment of the present invention. Fig. 3 is a diagram for explaining the operation when the reading device according to the first embodiment of the present invention captures information displayed as unevenness. FIG. 4 is a diagram for explaining the operation when the reading device according to the first embodiment of the present invention takes a picture of a poor message displayed in light of 15; Fig. 5 (a) is a front view showing the configuration of a mobile phone device equipped with the reading device according to the first embodiment of the present invention. Fig. 5 (b) is a perspective view of a main part of a part of the mobile phone device according to the first embodiment of the present invention, in which a reading device is mounted. 20 FIG. 6 is a cross-sectional view of a main part of a mobile phone device according to a first embodiment of the present invention, showing a portion on which a reading device is mounted. Fig. 7 is a sectional view showing the structure of a reading device according to a second embodiment of the present invention. Fig. 8 is a cross-sectional view of 20042004596 showing the structure of a reading device according to a third embodiment of the present invention. Fig. 9 is a schematic perspective view showing the structure of a reading device according to a third embodiment of the present invention. Fig. 10 is a sectional view showing the configuration 5 of a reading device according to a fourth embodiment of the present invention. Fig. 11 is a perspective view showing the structure of a reading device according to a fourth embodiment of the present invention. Fig. 12 is a diagram for explaining the operation when the reading device according to the fourth embodiment of the present invention reads information displayed in light and shade. 10 FIG. 13 is a diagram for explaining the operation when the reading device according to the fourth embodiment of the present invention reads information displayed in a concave and convex manner. Fig. 14 is a sectional view showing another configuration of a reading device according to a fourth embodiment of the present invention. Fig. 15 is a sectional view showing the structure of still another 15 of the reading device according to the fourth embodiment of the present invention. Fig. 16 is a sectional view showing still another configuration of a reading device according to a fourth embodiment of the present invention. Fig. 17 is a perspective view showing the structure of a reading device according to a fifth embodiment of the present invention. 20 Fig. 18 is a sectional view showing the structure of a reading device according to a fifth embodiment of the present invention. Fig. 19 is a perspective view showing the structure of a reading device according to a sixth embodiment of the present invention. Fig. 20 is a plan view showing the structure of a reading device 37 200403596 according to a sixth embodiment of the present invention. Fig. 21 is a diagram for explaining the structure of a conventional reading device. [Representative symbol table for main elements of the drawing] 1, 61, 71, 101, 161, 162 ... Read 40, 90 ....... Total reflection surface device 43, 130 ..... Frame 11. ..... 1st substrate 50 ........., mobile phone device 12 ... 2nd substrate 51 .... Antenna section 13, 96 ..... 1st LED 52 ..... .. Loudspeaker section 14,97 .. • ... 2nd LED 53 .... Display section 15,16 ...... Condensing section 54 .... Key section 17,67, 104 ... section 1 light guide mechanism 55 .... call section 18,105 ... chuck 63,122 ... finger 19,109 ... second light guide mechanism 69,70,92 ... ... support members 20,81 ......... 4th light guide mechanism 93,94 ... 21 ... manuscript reading unit 95 .... light distribution mechanism 22,110, ... 3rd Light guide mechanism 102 ......... First light source section 23 ... GRIN lens 103 ... Second light source section 24 ... Total reflection mechanism 106 ... u 1st inclined surface 25,85 ..... half lens 107 ···· • 2nd inclined surface 27 ... .refractive surface 108,148 ... reading surface 28,29,30, 31 ... shielding member 112 ...... substrates 32,111 ... imaging elements 113,151 ... optical elements 33 ... 142 ......... Projection 34,121 ... Original

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Claims (1)

拾、申請專利範圍： 1·一種光學元件，包含有·· 一第1傾斜面，係可使第丨光線反射者； 一第2傾斜面，係可使第2光線反射者；及 一讀取面，係鄰接前述第1傾斜面與前述第2傾斜面， 而可使前述第1光線於前述第1傾斜面之全反射光部分反 射’並使前述第2光線於前述第2傾斜面之全反射光全反射 後’讀取被攝體之光學資訊者。 2·—種讀取裝置，包含有： 一第1光源部； 一第2光源部； 一第1傾斜面，係可使來自前述第1光源部之光線全反 射者； 一第2傾斜面，係可使來自前述第2光源部之光線全反 射者； 一讀取面，係可讀取被寫體之光學資訊，並設置成鄰 接前述第1傾斜面與前述第2傾斜面，而可使於前述第1傾斜 面全反射之來自前述第1光源部之光線與於前述第2傾斜面 全反射之來自前述第2光源部之光線射入者；及 一拍攝部，係可拍攝前述讀取面之散亂光者。 3.如申請專利範圍第2項之讀取裝置，其中前述第1傾斜面 全反射之來自前述第1光源部之光線係於前述讀取面部勿 反射，而前述第2傾斜面全反射之來自前述第2光源部之光 線則於前述讀取面全反射。 200403596 4. 如申請專利範圍第2或3項之讀取裝置，其中來自前述第1 光源部之光線之光軸方向係與來自前述第2光源部之光線 之光轴方向彼此平行。 5. 如申請專利範圍第2項之讀取裝置，其中前述讀取面與前 5 述拍攝部間係具有一導光機構。 6. 如申請專利範圍第2項之讀取裝置，其中前述第1光源 部、前述第2光源部及前述拍攝部係設置於同一基板上。 7. 如申請專利範圍第5項之讀取裝置，其中該導光機構係設 置成平行於來自前述第1光源部之光線之光軸方向與來自 10 前述第2光源部之光線之光軸方向。 8. 如申請專利範圍第5項之讀取裝置，其中該導光機構係一 GRIN透鏡頭陣列。 9. 如申請專利範圍第8項之讀取裝置，其中該GRIN透鏡頭陣 列之共役長實質上與前述拍攝部至前述讀取面之距離一 15 致。 10. 如申請專利範圍第2項之讀取裝置，其係於前述讀取面 設置一突起部。 11. 如申請專利範圍第10項之讀取裝置，其中該G RIN透鏡頭 陣列之共役長實質上與前述拍攝元件至前述突起部前端之 20 距離一致。 12. 如申請專利範圍第2項之讀取裝置，其中該讀取面係由 一曲面構成。 13. 如申請專利範圍第12項之讀取裝置，其中該曲面係一凹 面。 40 200403596 14.如申請專利範圍第2項之讀取裝置，其中當以前述讀取 面之光線之臨界角作為R (deg)時，來自前述第1光源部之 光線之光軸方向與前述第1傾斜面所成之角度a (deg)係 以0&lt; a &lt; (R/2)表示。 5 15.如申請專利範圍第2項之讀取裝置，其中當以前述讀取 面之光線之臨界角作為R (deg)時，來自前述第2光源部之 光線之光軸方向與前述第2傾斜面所成之角度厶（deg)係 以（R/2) $厶$90 —R表示。 16. —種光學元件，包含有： 10 —第1讀取面，係由第1光線照射者； 一第2讀取面，係由第2光線照射者； 一半透鏡，係可反射前述第1讀取面之散亂光，同時使 朝前述第2讀取面射入之光線穿透，並使前述第1讀取面之 散亂光與朝前述第2讀取面射入之光線配光於同方向者；及 15 一聚光機構，係可將前述第1讀取面之散亂光及朝前述 第2讀取面射入之光線聚光於一預定面上者。 17. 如申請專利範圍第2項之光學元件，其中前述第1讀取面 係一可讀取以凹凸顯示之資訊之面； 且，前述第1光線係構造成朝大致垂直方向照射前述第 20 1讀取面。 18. 如申請專利範圍第16或17項之光學元件，其中前述第2 讀取面係一可讀取以濃淡顯示之資訊之面。 且，前述第2光線照射前述第2讀取面之角度係不超過 臨界角。 41 200403596 19. 如申請專利範圍第16項之光學元件，其中前述第1讀取 面與前述第2讀取面係彼此呈直角。 20. 如申請專利範圍第16項之光學元件，其中該聚光機構係 GRIN透鏡頭。 包含有： 5 21. —種讀取裝置， 一第1光源部； 一第2光源部； 係可由第1光線照射者； 係可由第2光線照射者； 一第1讀取面， 一第2讀取面， 10 一半透鏡，係可反射前述第1讀取面之散亂光，同時使 朝前述第2讀取面射入之光線穿透，並使前述第1讀取面之 散亂光與朝前述第2讀取面射入之光線配光於同方向者； 一聚光機構，係可將前述第1讀取面之散亂光及朝前述 第2讀取面射入之光線聚光於預定面上者；及 15 一拍攝部，係配置於前述預定面上者。 22. 如申請專利範圍第21項之讀取裝置，其中前述拍攝部之 拍攝面至前述第1讀取面之光路長係與前述拍攝部之拍攝 面至被攝體所配置之面之光路長相等。 23. 如申請專利範圍第22項之讀取裝置，其中前述拍攝部之 20 拍攝面至前述第1讀取面之光路長及前述拍攝部之拍攝面 至前述被攝體所配置之面之光路長係與前述聚光機構之共 役長相等。 24. 如申請專利範圍第24項之讀取裝置，其中前述第1讀取 面所讀取之資訊係指紋資訊，而前述第2讀取面所讀取之被 42 200403596 攝體資訊則係文件資訊。 25.—種資訊裝置，係具有申請專利範圍第23或24項之讀取 裝置及用以收納該讀取裝置之框體者； 且，前述被攝體所配置之面係與前述框體及前述被攝 5 體接觸之面一致。Scope of patent application: 1. An optical element including a first inclined surface that reflects the first light; a second inclined surface that reflects the second light; and a reading The surface is adjacent to the first inclined surface and the second inclined surface, so that the first light ray can be partially reflected by the total reflected light of the first inclined surface, and the second light ray is completely formed on the second inclined surface. After the reflected light is totally reflected, a person who reads the optical information of the subject. 2. A reading device comprising: a first light source section; a second light source section; a first inclined surface, which can totally reflect light from the aforementioned first light source section; a second inclined surface, It can make the light from the second light source part fully reflect; a reading surface can read the optical information of the object to be written, and is arranged adjacent to the first inclined surface and the second inclined surface, so that The light from the first light source unit that is totally reflected on the first inclined surface and the light from the second light source unit that is totally reflected on the second inclined surface; and a photographing unit that can photograph the reading Face of scattered light. 3. The reading device according to item 2 of the patent application range, wherein the light from the first light source portion that is totally reflected by the first inclined surface is not reflected on the reading surface, and the light that is totally reflected from the second inclined surface is from The light from the second light source unit is totally reflected on the reading surface. 200403596 4. If the reading device of the second or third aspect of the patent application, the optical axis direction of the light from the first light source unit and the optical axis direction of the light from the second light source unit are parallel to each other. 5. For the reading device of the second scope of the application for a patent, wherein a light guiding mechanism is provided between the reading surface and the above-mentioned photographing unit. 6. For the reading device of the second scope of the patent application, the first light source unit, the second light source unit, and the imaging unit are provided on the same substrate. 7. The reading device according to item 5 of the patent application scope, wherein the light guide mechanism is arranged parallel to the optical axis direction of the light from the first light source section and the optical axis direction of the light from the second light source section 10 . 8. The reading device according to item 5 of the patent application, wherein the light guiding mechanism is a GRIN lens head array. 9. For the reading device of the scope of application for patent No. 8, wherein the co-operative length of the GRIN lens head array is substantially the same as the distance from the aforementioned photographing section to the aforementioned reading surface. 10. As for the reading device in the scope of patent application No. 2, it is provided with a protruding portion on the aforementioned reading surface. 11. The reading device according to item 10 of the patent application scope, wherein the co-operating length of the G RIN lens head array is substantially the same as the distance from the imaging element to the front end of the protrusion. 12. The reading device according to item 2 of the patent application, wherein the reading surface is composed of a curved surface. 13. The reading device of claim 12 in which the curved surface is a concave surface. 40 200403596 14. The reading device according to item 2 of the patent application range, wherein when the critical angle of the light on the reading surface is taken as R (deg), the direction of the optical axis of the light from the first light source portion and the aforementioned 1 The angle a (deg) formed by the inclined surface is expressed as 0 &lt; a &lt; (R / 2). 5 15. The reading device according to item 2 of the scope of patent application, wherein when the critical angle of the light on the reading surface is taken as R (deg), the direction of the optical axis of the light from the second light source portion is the same as that of the second The angle 厶 (deg) formed by the inclined surface is expressed by (R / 2) $ 厶 $ 90 —R. 16. An optical element, including: 10 — a first reading surface, which is illuminated by the first light; a second reading surface, which is illuminated by the second light; a half lens, which can reflect the first The scattered light on the reading surface penetrates the light incident on the second reading surface, and distributes the scattered light on the first reading surface and the light incident on the second reading surface. Those in the same direction; and 15 a light concentrating mechanism, which can condense the scattered light of the first reading surface and the light incident on the second reading surface onto a predetermined surface. 17. The optical element according to item 2 of the scope of patent application, wherein the first reading surface is a surface capable of reading information displayed in concavities and convexities; and the first light beam is configured to illuminate the 20th direction in a substantially vertical direction. 1 Read surface. 18. For the optical element with the scope of patent application No. 16 or 17, wherein the aforementioned second reading surface is a surface that can read information displayed in light and shade. The angle at which the second light irradiates the second reading surface does not exceed a critical angle. 41 200403596 19. The optical element according to item 16 of the application, wherein the first reading surface and the second reading surface are at right angles to each other. 20. The optical element according to item 16 of the patent application scope, wherein the light condensing mechanism is a GRIN lens head. Contains: 5 21. —A reading device, a first light source section; a second light source section; a person that can be illuminated by the first light; a person that can be illuminated by the second light; a first reading surface, a second The reading surface, 10 half lens, can reflect the scattered light of the first reading surface, and at the same time penetrate the light incident on the second reading surface, and make the scattered light of the first reading surface A light concentrating mechanism can converge the scattered light of the first reading surface and the light incident on the second reading surface. Light on a predetermined surface; and 15 a photographing unit, which is disposed on the predetermined surface. 22. For the reading device of the scope of application for patent No. 21, the optical path length from the photographing surface of the photographing section to the first reading surface is the optical path length of the photographing surface of the photographing section to the surface where the subject is arranged. equal. 23. If the reading device of the 22nd patent application scope, wherein the optical path length from the 20th imaging surface of the aforementioned photographing section to the first reading surface and the optical path of the imaging surface of the aforementioned photographing section to the surface where the subject is arranged The length is equal to the co-operator of the aforementioned light-concentrating mechanism. 24. If the reading device of the 24th scope of the patent application, the information read by the aforementioned first reading surface is fingerprint information, and the information read by the aforementioned second reading surface is 42 200403596. The subject information is a document. Information. 25. An information device is a reading device having a patent application scope of 23 or 24 and a frame for accommodating the reading device; and the surface configured by the aforementioned object is the same as the aforementioned frame and The contact surfaces of the aforementioned subject 5 are consistent. 4343
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