TWI267790B - Total reflection fingerprint authentication device - Google Patents

Total reflection fingerprint authentication device Download PDF

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Publication number
TWI267790B
TWI267790B TW94117561A TW94117561A TWI267790B TW I267790 B TWI267790 B TW I267790B TW 94117561 A TW94117561 A TW 94117561A TW 94117561 A TW94117561 A TW 94117561A TW I267790 B TWI267790 B TW I267790B
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Taiwan
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light
total reflection
area
reflection type
reflection
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TW94117561A
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Chinese (zh)
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TW200641700A (en
Inventor
Rung-Chuen Wu
Jyh-Long Chern
Ching-Shan Dai
Yung-Wen Lin
Jr-De Huang
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Chuan Liang Ind Co Ltd
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Publication of TWI267790B publication Critical patent/TWI267790B/en

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Abstract

The present invention provides a total reflection fingerprint authentication device, which comprises a body, a light source, a joint body and a sensor. The body has a touch area, a first reflection area and a light-transmitting area. Light generated by the light source illuminates a finger placed on the touch area through the light-transmitting area of the body. The joint body has a second reflection area, and the sensor is installed on the joint body. There is an aperture in the jointed portion of the body and the joint body. The aperture is a black plated or a blackening opaque cavernous film, allowing only a predetermined light beam to pass through the aperture and filtering out other light beams so as to form an image on the sensor. Therefore, when the fingerprint authentication device of the present invention acquires a fingerprint image, a high-contrast and low-noise effect is achieved. The size of the fingerprint authentication device of the present invention is small, therefore it can be applied to a small-size product. Further, it is easy to manufacture, and the manufacturing cost can be reduce by means of automatic manufacturing.

Description

12677901267790

【發明所屬之技術領域】 本發明係有關一種指紋辨識裝置, 反射式指紋辨識裝置。 寸〜疋有關一種全 【先前技術】 生物辨識是針對 辨識程序來確認真實 紋辨識的發展最為成 傳統的密碼及IC §己憶或身攜帶的 反觀指紋辨識的特點 需隨身攜帶的煩惱, 它具備獨一無二的特 賴度,這也是傳統的 取代的原因。目前使 載於體積嬌小之產品 明之目的即在提出一 人類獨有之生理特微冷—W ,v 野欲進打辨識,透過 身分,經過長時間的菸孱 熟。 J 士展,目前以指[Technical Field] The present invention relates to a fingerprint recognition device, a reflective fingerprint recognition device. Inch~疋About a full [prior technology] Biometric identification is the identification of the program to confirm the development of real-grain identification. The most common password and IC § Reminiscence or the characteristics of the fingerprint recognition carried by the body need to be carried with you. The unique Tetra, this is also the reason for the traditional replacement. At present, the purpose of the product contained in the small size is to present a unique physiological coldness of human beings - W, v wild desire to identify, through identity, after a long period of smoke. J Shizhan, currently pointing

Card等身份辨識的方式,都會有需 不便,且容易被破解或遭竊等胃狀況, 在於它不需人體本身記憶,也沒有必 因此毋需顧慮被竊取的問題,更因為 性’提昇了身份識別的安全性及可信 密碼及IC Card會逐漸被指紋辨識所 用的指紋辨識裝置體積大,不方便搭 ,且指紋辨識裝置價格昂貴,故本發 解決此問題之裝置。 本發明之主要目的,係在提供一種全反射式指紋辨識 裝置’使其擷取指紋影像時,以達到高對比及低雜訊之功 效。 本發明之另一目的,在於提供一體積小和可靠度高的 指紋辨識裝置,使其應用於體積嬌小之產品。Cards and other methods of identification will be inconvenient and easy to be cracked or stolen, etc., because it does not require the human body to remember, and there is no need to worry about the problem of being stolen, and because sex has improved its identity. The identification of the security and the trusted password and the IC card will gradually be fingerprinted by the fingerprint identification device is bulky, inconvenient to take, and the fingerprint identification device is expensive, so the device for solving this problem is issued. The main object of the present invention is to provide a total reflection type fingerprint recognition device for capturing fingerprint images to achieve high contrast and low noise. Another object of the present invention is to provide a fingerprint recognition device that is small in size and highly reliable, and is applied to a product having a small size.

1267790 五、發明說明(2) 本發明之再一目的係在於製程簡單,可降低成本,使 其更具有競爭力。 1 根據本發明,一種全反射式指紋辨識裝置包括一本 體、一光源、一接合體及一感測器,本體具有按觸區、第 一反射區及透光區,按觸區係用以將手指放置其上,光源 所產生之光線經過本體的透光區照射在放置於按觸區上的 手指,使手指指紋反射的光線傳遞至第一反射區,接合體 設有第二反射區,接合體係與本體連接在一起,連接處設 有一光圈’且在接合體末端設置感測器,用以接收第二反 區傳遞的光線,使感測器感測到手指指紋成像。 底下藉由具體實施例配合所附的圖式詳加說明,當更 容易瞭解本發明之目的、技術内容、特點及其所達成之功 效0 【實施方式】 本發明係關於-種全反射式指紋辨識裝置,其設有兩 面凹面鏡之設計,藉由凹面鏡聚焦及反 長光學路徑並且可縮小機構尺寸,以達到指識=延 m 〇 如f一圖所示,其係為本發明之結構示意圖,一種入 反射式指紋辨識装置伟白紅 #、、盾4 〜口 種全 ^ t ^ 你包括一光,原4、一本體6、一接人獅 8及一感測器1〇,太驹, 接口體 … 本體6具有一按觸區11、一第一反射區h 及透光區13,按觸^ 对區12 及逍 牧觸£1丨係為透明材質, 力,PC或透光性塑豚铋u l Γ為玻璃,壓克 i膠材料,用以放置手指,光源4產生之1267790 V. INSTRUCTIONS (2) A further object of the present invention is to simplify the process, reduce costs, and make it more competitive. According to the present invention, a total reflection type fingerprint recognition device includes a body, a light source, a joint body, and a sensor. The body has a touch area, a first reflection area, and a light transmission area. The finger is placed thereon, and the light generated by the light source is irradiated on the finger placed on the touch area through the light transmitting area of the body, so that the light reflected by the finger fingerprint is transmitted to the first reflection area, and the joint body is provided with the second reflection area, and the joint is provided. The system is coupled to the body, and an aperture is provided at the joint, and a sensor is disposed at the end of the joint body for receiving the light transmitted by the second reverse zone, so that the sensor senses the fingerprint of the finger. The purpose of the present invention, the technical contents, the features, and the effects achieved by the present invention will be more readily understood by the specific embodiments and the accompanying drawings. [Embodiment] The present invention relates to a total reflection type fingerprint. The identification device is provided with a two-sided concave mirror design, which is characterized by a concave mirror focusing and a reverse long optical path and can reduce the size of the mechanism, so as to achieve the definition of the invention, which is shown in FIG. An in-reflective fingerprint identification device Weibaihong#, Shield 4~ 口种全^t ^ You include a light, the original 4, a body 6, a lion 8 and a sensor 1 〇, too, Interface body... The body 6 has a contact area 11, a first reflection area h and a light transmission area 13, and the touch-sensitive area 12 and the 逍 触 touch £1 are transparent materials, force, PC or light-transmissive plastic Dolphin 铋 Γ is glass, pressed i plastic material, used to place fingers, light source 4 is produced

1267790 五、發明說明(3) 光線經由擴散處理後而形成均勻光,再將其照射在放置於 按觸區11上的手指,接合體8具有另一第二反射區14,接 合體8與本體6為連接關係,兩者連接處設有光圈16,而接 合體8 —端設有感測器10。 其中,按觸區11玎為條形面或傾斜面,或是以菲涅爾 透鏡(Fresnel-type)形式’所組成之平面或曲面透明材 質,光圈1 6為為鍍黑或塗黑之不透光孔狀膜層;本體6之 第一反射區12及接合體8之第二反射區14係為凹面鏡或曲 面,也可以傾斜形式組成,將指紋影像清楚的傳遞至感測 •Π0,且兩者之第一、第二反射區係為反光之金屬鍍膜所 構成,而反射區1 2、1 4總數也不限定只有兩個,可任意延 伸為奇數個或是偶數個,以適當為原則,也可為非球面形 式組成。 本發明之光路導引,係由光源4產生均勻之光線,其 經過本體的透光區1 3照射在放置於按觸區11上的手指,按: 觸區11上的手指因指紋紋路凹凸而有不同的反射光線,按 觸區11上的手指反射光線反射至本體6之第一反射區12, 第一反射區1 2將光線聚焦,且將聚焦後的光線再反射出 j,而由第一反射區12反射出的光線將通過一光圈16,光 1 6為鍵黑或塗黑之不透光孔狀膜層,能讓第一反射區1 2 反射出的光線’依照光路控反射至接合體8之第二反射區 14,第二反射區14將接收的光線聚焦,並且將聚焦後的光 線再反射至感測器1 0,感測器丨〇即可感測到代表手指指紋 紋路的光訊號,而感測器i 〇可為線型或是條狀,可^ :依1267790 V. DESCRIPTION OF THE INVENTION (3) Light is formed into a uniform light after diffusion treatment, and then irradiated on a finger placed on the contact area 11, the joint body 8 has another second reflection area 14, the joint body 8 and the body 6 is a connection relationship, the aperture 16 is provided at the junction of the two, and the sensor 10 is provided at the end of the joint body 8. Wherein, the contact area 11玎 is a strip surface or an inclined surface, or a flat or curved transparent material composed of a Fresnel-type form, and the aperture 16 is black or black. a transparent apertured film layer; the first reflective region 12 of the body 6 and the second reflective region 14 of the bonded body 8 are concave mirrors or curved surfaces, and may also be formed in an oblique form to clearly transmit the fingerprint image to the sensing Π0, and The first and second reflective regions of the two are formed by a reflective metal coating, and the total number of reflective regions 1 2 and 14 is not limited to two, and may be arbitrarily extended to an odd number or an even number, as appropriate. It can also be composed of an aspherical form. The light path guiding of the present invention is to generate uniform light from the light source 4, which is irradiated on the finger placed on the touch area 11 through the light transmitting area 13 of the body, according to: the finger on the touch area 11 is due to the unevenness of the fingerprint texture. There are different reflected rays, and the light reflected by the finger on the contact area 11 is reflected to the first reflection area 12 of the body 6. The first reflection area 12 focuses the light, and reflects the focused light back to j. The light reflected by a reflective area 12 will pass through a diaphragm 16, and the light 16 is a black or black opaque aperture-like film layer, so that the light reflected by the first reflection area 12 is reflected to the light path. The second reflective area 14 of the bonding body 8 focuses the received light and reflects the focused light to the sensor 10, and the sensor 感 senses the finger fingerprint. The optical signal, and the sensor i can be linear or strip, ^:

第8頁 1267790 五、發明說明(4) 附在指紋辨識裝置上 綜合上所述,本發明係 置,其光源之光線照到指紋 冏的反射,形成亮暗的灰階 面凹面鏡之設計,經由第一 射光線經由光圈,光圈讓代 且消除雜光,消除雜光後的 焦’指紋影像成像於感測器 紋紋路與資料庫内之先前指 I分辨識,故,本發明係提 指紋辨識裝置,使使用者於 辨識。 提供一種全反射式指紋辨識裝 Ν' ’會因指紋紋路凹凸而有不 影像,且指紋辨識裝置具有兩 面凹面鏡聚焦及反射光線,反 表手指指紋紋路的光線通過並 光線再經由第二面凹面鏡聚 ,感測器再將感測所得到的指 紋紋路比對,以達到使用者的 ,一種具有高對比及低雜訊之 操作時能更加精確的得到身分 以上所述者, 表不及說明,惟熟 上及細節上的改變 範圍。 為本發明參考其較佳 習本技藝之人士應瞭 ,均不可背離本發明 實施例,並特別地 解的是各種在形式 之精·神與申請專利Page 8 1267790 V. Description of the Invention (4) Attached to the fingerprint identification device, the present invention is configured such that the light of the light source is reflected by the fingerprint , to form a bright and dark gray-scale concave mirror design. The first ray of light passes through the aperture, the aperture allows generation and eliminates stray light, and the image of the focal image after the stray light is imaged in the sensor ridge path and the database is identified. Therefore, the present invention provides fingerprint identification. The device allows the user to recognize. Providing a total reflection type fingerprint identification device '' will have no image due to the concave and convex fingerprint lines, and the fingerprint identification device has two concave mirrors for focusing and reflecting light, and the light of the finger fingerprint pattern passes through and the light is concentrated by the second concave mirror. The sensor then compares the fingerprint lines obtained by the sensing to achieve the user's, and the operation with a high contrast and low noise can more accurately obtain the identity mentioned above, the table is not explained, but cooked The scope of the change in the details and details. Those skilled in the art with reference to the preferred embodiments of the present invention should not depart from the embodiments of the present invention, and particularly understand the various forms of the spirit and the patent application.

第9頁 1267790 圖式簡單說明 【圖式簡單說明】 第一圖為本發明之指紋辨識裝置結構示意圖 6本體 1 0感測器 1 2第一反射區 1 4第二反射區 【主要元件符號說明 4光源 8接合體 11按觸區 1 3透光區 16光圈Page 9 1267790 Brief description of the drawing [Simple description of the drawing] The first figure is a schematic diagram of the structure of the fingerprint identification device of the present invention. 6 Body 10 Sensor 1 2 First reflection area 1 4 Second reflection area [Main component symbol description 4 light source 8 joint body 11 according to the contact area 1 3 light transmission area 16 aperture

第10頁Page 10

Claims (1)

1267790 六、申請專利範圍 1. -種全反射式指紋辨識裝置,其包括: 松:二田其係8又有一按觸區、第-反射區及-透光區,該 备觸區用以放置手指; 主,源其用以將產生之光線照射在放置於該按觸區上的 一 S,使手指指紋反射的光線傳遞至第一反射區,· 接合體’其係與該本體連接,連接處設有一光圈,該接 合體設有第二反射區;以及 二感測器’其設置於該接合體上,用以接收第二反射區傳 ^的光線,使感測器感測到手指指紋成像。 A如申請專利範圍第1項所述之全反射式指紋辨識裝置,’ ^中’該按觸區係為條形或菲涅爾透—type)形 式所組成之平面。 •如申請專利範圍第1項所述之全反射式指紋辨識裝置, 4其中,該按觸區係為透明材質。 如申凊專利範圍第3項所述之全反射式指紋辨識裝置, 其中,該透明材質係為玻璃、壓克力、PC或透光性塑膠材 料者。 5·如申請專利範圍第1項所述之全反射式指紋辨識裝置, 4中,該按觸區及該反射區可為傾斜、玎為曲面或傾斜之 面’控制指紋影像成像於感測器。 •如申請專利範圍第丨項所述之全反射式指紋辨識裂置, 其中,該本體及該接合體連接處之光圈,其為一種鍍黑或 塗專、之不透光孔狀之化學材料膜層。 如申請專利範圍第1項所述之全反射式指紋辨識震置,1267790 6. Patent application scope 1. A total reflection type fingerprint identification device, comprising: a pine: Ertian's series 8 has a touch zone, a first reflection zone and a light transmission zone, and the contact zone is used for placing The main source is used to illuminate the generated light on an S placed on the contact area, so that the light reflected by the finger fingerprint is transmitted to the first reflection area, and the joint body is connected to the body and connected. An aperture is disposed, the joint body is provided with a second reflection area, and two sensors are disposed on the joint body for receiving light transmitted by the second reflection area, so that the sensor senses the finger fingerprint Imaging. A. The total reflection type fingerprint recognition device according to claim 1, wherein the contact area is a plane formed by a strip shape or a Fresnel type. The total reflection type fingerprint recognition device according to claim 1, wherein the contact area is a transparent material. The total reflection type fingerprint identification device according to the third aspect of the invention, wherein the transparent material is glass, acrylic, PC or translucent plastic material. 5. The total reflection type fingerprint recognition device according to claim 1, wherein the contact area and the reflection area may be inclined, curved or curved, and the fingerprint image is imaged on the sensor. . The total reflection type fingerprint identification crack described in the scope of the patent application, wherein the aperture of the body and the joint of the joint body is a black or coated opaque hole-shaped chemical material. Membrane layer. The total reflection type fingerprint identification described in item 1 of the patent application scope is 第11頁 ⑧ 1267790 六、申請專利範圍 其中,該本體及該接合體連接處之光圈’亦可為光纖材 質,其可讓光線依照I路徑行走,同時將不需要之雜散光 阻擋以消除雜光。 ^如申請專利範圍第1項所述之全反射式指紋辨識裝置, 其中,該第一反射區及第二反射區係為凹面鏡。 9 ·如申請專利範圍第1項所述之全反射式指紋辨識裝置, 其中,該反射區總數也不限定只有兩個’可任意延伸為奇 數個或是偶數個,也可為#球面形式組成。 1 〇 ·如申請專利範圍第1項所述之全反射式指紋辨識裝 ’其中’該第一反射區及第二反射區係為具有反射作用 之金屬鍍膜。 11·如申請專利範圍第1項所述之全反射式指紋辨識裝 置,其中,該光源產生之光係經由擴散處理後而形成"均句 光,再將其照射到該按觸區上的手指指紋。 一 1 2 ·如申請專利範圍第1項所述之全反射式指紋辨識装 其中,該感測器可為線型或條狀。 、 ’ 13.如申請專利範圍第i項所述之全反射式指紋辨識 其中,該感測器並非直接附著於指紋辨識裝置上。X夏, 第12頁 ⑧Page 11 8 1267790 6. Patent application scope, the aperture of the body and the joint of the joint body can also be an optical fiber material, which allows the light to walk according to the I path, and blocks unnecessary stray light to eliminate stray light. . The total reflection type fingerprint recognition device according to claim 1, wherein the first reflection area and the second reflection area are concave mirrors. 9. The total reflection type fingerprint recognition device according to claim 1, wherein the total number of the reflection regions is not limited to only two 'optionally extending to an odd number or an even number, or a #spherical form. . 1 〇 The total reflection type fingerprint identification device as described in claim 1 wherein the first reflection region and the second reflection region are metal plating films having a reflection effect. The total reflection type fingerprint identification device of claim 1, wherein the light generated by the light source is formed by diffusion processing to form a "equal sentence light, and then irradiating the light onto the touch area Finger fingerprint. A total reflection type fingerprinting device as described in claim 1, wherein the sensor may be linear or strip-shaped. 13. The total reflection fingerprinting as described in claim i, wherein the sensor is not directly attached to the fingerprint recognition device. X Xia, page 12 8
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TWI398817B (en) * 2008-03-05 2013-06-11 Nec Corp Cleaning device for fingerprint authentication apparatus, cleaning method, and fingerprint authentication system using the same
CN106339663A (en) * 2015-07-09 2017-01-18 金佶科技股份有限公司 Fingerprint identification module
US9818017B2 (en) 2015-07-09 2017-11-14 Gingy Technology Inc. Fingerprint identification module
US10049257B2 (en) 2015-07-09 2018-08-14 Gingy Technology Inc. Fingerprint identification module

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TWI549066B (en) 2015-03-17 2016-09-11 國立高雄應用科技大學 Method and system for enhancing ridges of fingerprint images
US10613256B2 (en) * 2017-08-11 2020-04-07 Industrial Technology Research Institute Biometric device
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TWI398817B (en) * 2008-03-05 2013-06-11 Nec Corp Cleaning device for fingerprint authentication apparatus, cleaning method, and fingerprint authentication system using the same
CN106339663A (en) * 2015-07-09 2017-01-18 金佶科技股份有限公司 Fingerprint identification module
US9818017B2 (en) 2015-07-09 2017-11-14 Gingy Technology Inc. Fingerprint identification module
TWI613597B (en) * 2015-07-09 2018-02-01 金佶科技股份有限公司 Fingerprint identification module
US10049257B2 (en) 2015-07-09 2018-08-14 Gingy Technology Inc. Fingerprint identification module
CN106339663B (en) * 2015-07-09 2019-06-25 金佶科技股份有限公司 Identification of fingerprint module

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