CN101201896A - Camera module for biometric authentication, biometric authentication device, and prism - Google Patents
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Abstract
本发明提供一种实现了小型化、薄型化的手指认证用摄像模块。手指认证用摄像模块(1)包括:LED(16),其照射所要通过人手指(50)的近红外线;棱镜(12),其具有包含射进透射手指(50)后的近红外线的入射区域(22a)的入射面(22)、对从入射区域(22a)射进的光进行反射的多个反射面(21、22、23)以及射出反射后的光的射出面(24);摄像元件(14),其将所入射的近红外线转换为电信号并输出;以及透镜单元(13),其将从棱镜(12)的射出面(24)射出的光在摄像元件(14)上成像。
The present invention provides a camera module for finger authentication that realizes miniaturization and thinning. The camera module (1) for finger authentication includes: LED (16), which irradiates the near-infrared rays that will pass through the human finger (50); The incident surface (22) of (22a), a plurality of reflective surfaces (21, 22, 23) that reflect the light incident from the incident area (22a) and the exit surface (24) that emits the reflected light; (14), which converts the incident near-infrared rays into electrical signals and outputs them; and a lens unit (13), which forms an image of the light emitted from the emitting surface (24) of the prism (12) on the imaging element (14).
Description
技术领域technical field
本发明涉及生物体认证用摄像模块、生物体认证装置及棱镜,更为详细地说涉及适于小型化、薄型化的生物体认证用摄像模块。The present invention relates to an imaging module for biometric authentication, a biometric authentication device, and a prism, and more specifically relates to an imaging module for biometric authentication suitable for miniaturization and thinning.
本申请的权利要求的优先权将出自2006年12月13日提交的日本申请JP2006-306204号公报,及2007年4月19日提交的日本申请JP2007-110945A,2007年4月19日提交的日本申请JP2007-110015,2007年4月19日提交的日本申请JP2007-110960,且本申请是将上述优先权的申请合并在一起。The priority of the claims of this application will be derived from the Japanese application JP2006-306204 published on December 13, 2006, and the Japanese application JP2007-110945A filed on April 19, 2007, and the Japanese application filed on April 19, 2007 Application JP2007-110015, Japanese application JP2007-110960 filed on Apr. 19, 2007, and this application combines the above-mentioned priority applications together.
背景技术Background technique
近年来,便携式电话机或个人电脑(PC)、PDA(Personal Digital Assistant)等的个人设备所共同需求之一便是进一步小型化、薄型化。In recent years, one of the common needs of personal devices such as mobile phones, personal computers (PCs), and PDAs (Personal Digital Assistants) is further miniaturization and thinning.
另一方面,在这些设备领域中,近年来,强烈需要针对设备的遗失和失盗等的不正当使用的安全对策。作为该安全对策之一,例如期待将利用了手指静脉图形的生物体认证应用于个人设备的技术。由于手指静脉图形因人而异,所以作为生物体认证是有效的。尤其是,由于使用了指纹的认证不会使人感到是犯罪搜查因而心理上的抵触感少,另外由于不是从外部可容易观察的生物体表面的信息而是利用了生物体内部的特征,所以具有难以伪造的优点。On the other hand, in these equipment fields, in recent years, there has been a strong need for security measures against unauthorized use such as loss and theft of equipment. As one of such security measures, for example, a technique of applying biometric authentication using a finger vein pattern to a personal device is expected. Since the finger vein pattern varies from person to person, it is effective as biometric authentication. In particular, since authentication using fingerprints does not make people feel that it is a criminal search, there is little psychological resistance, and because it is not information on the surface of the living body that can be easily observed from the outside, but uses the characteristics of the inside of the living body, so It has the advantage of being difficult to counterfeit.
该手指的静脉认证例如利用近红外线。这是因为,近红外线具有相对生物体接近于透明的透射性,且具有被血液中的血红蛋白吸收的性质。在从外部向对象部位即手指照射近红外线并从生物体内向外部放射从而获取的图像中,生物体内的肌肉组织和骨骼的部分显现为亮白,血管部分吸收近红外线而显现为暗黑。利用该亮暗的差异获得静脉图形,并将所取得的静脉图形与预先登记的静脉图形比较,进行本人的认证。This finger vein authentication utilizes, for example, near-infrared rays. This is because near-infrared rays have a transmittance close to transparency with respect to a living body, and have a property of being absorbed by hemoglobin in blood. In an image obtained by irradiating near-infrared rays from the outside to the finger and radiating them from the living body to the outside, the musculature and bones in the living body appear bright white, and blood vessels absorb near-infrared rays and appear dark. A vein pattern is obtained using this difference in brightness and darkness, and the obtained vein pattern is compared with pre-registered vein patterns to perform identity verification.
例如用笔记本PC(笔记本型PC)等的个人设备等实现该静脉认证希望研发出比现有技术进一步小型化、薄型化的摄像模块。For example, to realize this vein authentication with personal devices such as notebook PCs (notebook PCs), it is desired to develop a camera module that is further miniaturized and thinner than the prior art.
作为实现手指认证用摄像模块的小型化的技术,现有技术中公知有日本特开2006-198174号公报所公开的技术。As a technique for realizing miniaturization of the camera module for finger authentication, the technique disclosed in JP-A-2006-198174 is known in the prior art.
日本特开2006-198174号公报公开了以下技术:从手指侧面方向照射近红外线并利用反射镜将放射出的近红外线的方向弯曲,并用CCD传感器转换为电信号,在认证部转换为二维图像数据进而获得生物体信息。Japanese Patent Application Laid-Open No. 2006-198174 discloses the following technology: irradiate near-infrared rays from the side of the finger, bend the direction of the emitted near-infrared rays with a mirror, convert them into electrical signals with a CCD sensor, and convert them into two-dimensional images in the authentication unit The data can then be used to obtain biological information.
现有的小型、薄型的手指认证用摄像模块用反射镜反射入射光并在摄像模块成像,但无法充分实现小型化。Conventional small and thin camera modules for finger authentication use mirrors to reflect incident light and form images on the camera module, but they cannot be sufficiently miniaturized.
发明内容Contents of the invention
于是,本发明的目的在于提供一种实现了小型化、薄型化的生物体认证用摄像模块(撮像モジユ一ル)。Therefore, an object of the present invention is to provide a biometric authentication camera module (imaging module) that has been reduced in size and thickness.
为了解决上述问题,涉及本发明的生物体认证用摄像模块,其特征在于,包括:光源,其将所要通过生物体的光照射到生物体上;棱镜,其具有包含射进透射生物体后的光的入射区域的入射面、将从该入射区域射进的光进行反射的多个反射面和射出反射后的光的射出面;摄像元件,其将入射的光转换为电信号并输出;以及透镜,其将从棱镜的射出面射出的光在摄像元件上成像。In order to solve the above problems, the camera module for biometric authentication of the present invention is characterized in that it includes: a light source, which irradiates the light to pass through the living body onto the living body; an incident surface of a light incident region, a plurality of reflective surfaces that reflect light entering from the incident region, and an exit surface that emits the reflected light; an imaging element that converts the incident light into an electrical signal and outputs it; and The lens forms an image of the light emitted from the emitting surface of the prism on the imaging element.
在上述生物体认证用摄像模块中,其特征在于,棱镜构成为,将包含入射区域的入射面作为第二反射面,对从入射区域射进并在第一反射面反射后的光进行反射。In the biometric authentication camera module described above, the prism is configured to use an incident surface including the incident area as a second reflective surface, and reflect light incident from the incident area and reflected by the first reflective surface.
在上述生物体认证用摄像模块中,其特征在于,棱镜构成为,在第二反射面的至少构成入射区域的区域中,对从入射区域射进并在第一反射面反射后的光进行全反射。In the aforementioned biometric authentication camera module, it is characterized in that the prism is configured such that, in the area constituting at least the incident area of the second reflective surface, the light incident from the incident area and reflected by the first reflective surface is fully analyzed. reflection.
在上述生物体认证用摄像模块中,其特征在于,棱镜构成为,由形成于第二反射面的入射区域以外的区域中的反射膜对从入射区域射入并在第一反射面反射后的光进行反射。In the aforementioned biometric authentication camera module, it is characterized in that the prism is configured such that the reflective film formed on the second reflective surface in a region other than the incident region Light is reflected.
在上述生物体认证用摄像模块中,其特征在于,棱镜构成为,将用第二反射面反射的光用配置在与第二反射面相对位置上的第三反射面反射,并从射出面射出。In the biometric authentication camera module described above, the prism is configured to reflect the light reflected by the second reflective surface by a third reflective surface disposed at a position opposite to the second reflective surface, and emit the light from the emitting surface. .
在上述生物体认证用摄像模块中,其特征在于,棱镜的第一反射面具有:通过全反射对从入射区域射进的光进行反射的全反射区域;和通过形成于棱镜表面的反射膜进行反射的反射膜形成区域,光源通过全反射区域和入射区域将所要通过生物体的光照射到生物体上。In the above-mentioned camera module for biometric authentication, it is characterized in that the first reflection surface of the prism has: a total reflection area that reflects the light incident from the incident area by total reflection; The reflective film forms an area, and the light source irradiates the light to pass through the living body onto the living body through the total reflection area and the incident area.
为解决上述问题,涉及本发明的生物体认证用摄像模块,其特征在于,所要通过生物体的光从棱镜的入射区域入射并在棱镜内进行多次反射再在摄像元件上成像,棱镜的反射面配置在连结入射区域和摄像元件的光程上。In order to solve the above problems, the camera module for biometric authentication of the present invention is characterized in that the light to pass through the living body is incident from the incident region of the prism and is reflected multiple times in the prism and then imaged on the imaging element, the reflection of the prism The surface is arranged on the optical path connecting the incident region and the imaging element.
在上述生物体认证用摄像模块中,其特征在于,还包含对可见光进行遮断的滤光器。In the aforementioned imaging module for biometric authentication, it further includes a filter for blocking visible light.
在上述生物体认证用摄像模块中,其特征在于,滤光器形成有菲涅耳透镜。In the biometric authentication imaging module described above, the optical filter is formed with a Fresnel lens.
为解决上述问题,涉及本发明的生物体认证装置,其特征在于,包括:光源,其照射所要通过生物体的光;棱镜,其具有包含射进透射生物体后的光的入射区域的入射面、将从该入射区域射进的光进行反射的多个反射面和射出反射后的光的射出面;摄像元件,其将入射后的光转换为电信号并输出;透镜,其将从棱镜的射出面射出后的光在摄像元件上成像;识别机构,其对从摄像元件输出的电信号进行解析并识别生物体的血管图形;保持机构,其预先保持生物体的血管图形;以及认证机构,其将用识别机构识别出的血管图形和保持在保持机构中的血管图形进行比较从而进行个体认证。In order to solve the above-mentioned problems, the biometric authentication device of the present invention is characterized in that it includes: a light source that irradiates light to pass through the living body; , a plurality of reflective surfaces that reflect the light entering from the incident area and an exit surface that emits the reflected light; an imaging element that converts the incident light into an electrical signal and outputs it; a lens that converts the light from the prism The light emitted from the exit surface forms an image on the imaging element; the identification mechanism analyzes the electrical signal output from the imaging element and identifies the blood vessel pattern of the living body; the holding mechanism holds the blood vessel pattern of the living body in advance; and the authentication mechanism, It performs individual authentication by comparing the blood vessel pattern recognized by the recognition means with the blood vessel pattern held in the holding means.
在上述生物体认证装置中,其特征在于,还包括将作为生物体之一的手指配置在规定位置上的手指导向件。The biometric authentication device described above further includes a finger guide for arranging a finger, which is one of the living bodies, at a predetermined position.
在上述生物体认证装置中,其特征在于,手指导向件具有将从光源放射出的光照射到手指上的照射窗。In the biometric authentication device described above, the finger guide has an irradiation window for irradiating the finger with light emitted from the light source.
为解决上述问题,涉及本发明的棱镜,其特征在于,具有:包含射进透射生物体后的光的入射区域的入射面;对从入射区域射进的光进行反射的第一反射面;对在第一反射面反射的光进行反射并兼作入射面的第二反射面;以及射出射进的光的射出面,第二反射面包含对在第一反射面反射后的光通过全反射进行反射的全反射区域。In order to solve the above-mentioned problem, relate to the prism of the present invention, it is characterized in that, have: the incident surface that comprises the incident area of the light that enters the transmission body; The first reflective surface that reflects the light incident from the incident area; The light reflected on the first reflective surface is reflected and also serves as the second reflective surface of the incident surface; and the exit surface of the light that is emitted, the second reflective surface includes reflecting the light reflected by the first reflective surface through total reflection total reflection area.
另外,作为其它问题,在现有的小型、薄型的手指认证用摄像模块的摄像机模块中,虽然利用光学可变光阑对防止无用光侵入进行了研究,但为了使摄像机模块小型化,列举了对大量无用光的可变光阑功能未必足够这一方面。In addition, as another problem, in the camera module of the existing small and thin camera module for finger authentication, although the use of the optical variable diaphragm is studied to prevent the intrusion of unwanted light, in order to reduce the size of the camera module, the The function of the iris diaphragm for a large amount of unwanted light may not be sufficient in this regard.
在此,本发明的目的在于提供一种排除无用光并可得到稳定的摄像质量的生物体认证用摄像模块。Here, an object of the present invention is to provide an imaging module for biometric authentication that eliminates unnecessary light and can obtain stable imaging quality.
为解决上述问题,涉及本发明的生物体认证用摄像模块,其特征在于,具有:光源,其将所要透过生物体的光照射到生物体上;棱镜,其具有包含射进透射生物体后的光的入射区域的入射面、将从入射区域射进后的光进行反射的反射面和射出用反射面反射后的光的射出面;摄像机模块(カメラモジユ一ル),其具有将从棱镜的射出面射出的光转换为电信号再输出的摄像元件;以及箱体,其将棱镜和摄像机模块分别配置在规定位置上并形成有使从棱镜的射出面射出的光通过的光通过孔。In order to solve the above-mentioned problems, the camera module for biometric authentication of the present invention is characterized in that it has: a light source, which irradiates the light to be transmitted through the living body onto the living body; The incident surface of the incident region of the light, the reflective surface that reflects the light entering from the incident region, and the exit surface of the light reflected by the reflective surface; the camera module (camera module), which has a An imaging element that converts the light emitted from the exit surface into an electrical signal and then outputs it; and a housing that arranges the prism and the camera module at predetermined positions and forms a light passage hole through which the light emitted from the exit surface of the prism passes.
在生物体认证用摄像模块中,其特征在于,箱体以使摄像机模块摄像所需的光量通过光通过孔的方式决定光通过孔的直径,In the camera module for biometric authentication, it is characterized in that the housing determines the diameter of the light passage hole so that the amount of light required for imaging by the camera module passes through the light passage hole,
在生物体认证用摄像模块中,其特征在于,箱体由吸收从近紫外线至近红外线的光的材料构成。In the biometric authentication camera module, the housing is made of a material that absorbs light from near ultraviolet rays to near infrared rays.
在生物体认证用摄像模块中,其特征在于,箱体为使从棱镜的射出面射出的光在箱体中反射后作为杂散光不会再次入射到棱镜中,而对箱体的至少朝向棱镜的面进行吸收从近紫外线至近红外线的光的涂装。In the camera module for biometric authentication, it is characterized in that the casing is such that the light emitted from the exit surface of the prism is reflected in the casing so that it will not re-enter the prism as stray light, and at least toward the prism toward the casing. The surface is coated to absorb light from near ultraviolet to near infrared.
为解决上述问题,涉及本发明的箱体,其特征在于,具有将对透射生物体后的光进行射进并射出的棱镜保持在规定位置上的保持部和将接受从棱镜射出来的光并转换为电信号再输出的摄像机模块安装在规定位置上的安装部,安装部形成有使从棱镜射出来的光通过并入射到摄像机模块中的光通过孔。In order to solve the above-mentioned problems, the box of the present invention is characterized in that it has a holding part that holds a prism that enters and exits the light that has passed through the living body at a predetermined position, and that receives the light emitted from the prism and The camera module, which is converted into an electrical signal and then output, is mounted on a mounting portion at a predetermined position, and the mounting portion is formed with a light passing hole through which light emitted from the prism passes and enters the camera module.
为解决上述问题,涉及本发明的棱镜,其特征在于,具有:包含射进透射生物体后的光的入射区域的入射面;对从入射区域射进的光进行反射的反射面;射出用反射面反射的光的射出面;以及形成于与入射面、反射面、射出面不同的面并涂装为吸收从近紫外线至近红外线的光的面。In order to solve the above-mentioned problem, relate to the prism of the present invention, it is characterized in that, have: the incident surface that comprises the incident region of the light that is injected into the transmission body; The reflective surface that reflects the light that enters from the incident region; The exit surface of the light reflected by the surface; and the surface formed on a surface different from the incident surface, the reflection surface, and the exit surface and coated to absorb light from near ultraviolet rays to near infrared rays.
为解决上述问题,涉及本发明的生物体认证装置,其特征在于,包括:光源,其将所要透射生物体的光照射到生物体上;棱镜,其具有包含射进透射生物体后的光的入射区域的入射面、将从入射区域射进后的光进行反射的反射面和射出用反射面反射后的光的射出面;摄像机模块,其具有将从棱镜的射出面射出的光转换为电信号再输出的摄像元件;箱体,其将棱镜和摄像机模块分别配置在规定位置上并形成有使从棱镜的射出面射出的光通过的光通过孔;识别机构,其对从摄像元件输出的电信号进行解析并识别生物体的血管图形;保持机构,其预先保持生物体的血管图形;以及认证机构,其将用识别机构识别出的血管图形和保持在保持机构中的血管图形进行比较从而进行个体认证。In order to solve the above problems, the biometric authentication device of the present invention is characterized in that it includes: a light source, which irradiates the light to be transmitted through the living body onto the living body; The incident surface of the incident area, the reflective surface that reflects the light entering from the incident area, and the exit surface of the light reflected by the reflective surface; the camera module, which has the function of converting the light emitted from the exit surface of the prism into electrical The imaging element for re-outputting the signal; the box body, which arranges the prism and the camera module at predetermined positions and forms a light passage hole for passing the light emitted from the exit surface of the prism; The electrical signal is analyzed to identify the blood vessel pattern of the living body; the holding mechanism holds the blood vessel pattern of the living body in advance; and the authentication mechanism compares the blood vessel pattern recognized by the recognition mechanism with the blood vessel pattern held in the holding mechanism to thereby Perform individual authentication.
在手指认证用摄像模块中,由于在以适当的位置关系配置棱镜和摄像机模块时可得到良好的摄像质量,所以二者的对位重要。但是,伴随着近年来的手指认证用摄像模块的小型化、薄型化,还存在棱镜和摄像机模块的对位逐渐比现有的结构变困难的问题。In the camera module for finger authentication, since good image quality can be obtained by arranging the prism and the camera module in an appropriate positional relationship, the alignment of both is important. However, with recent downsizing and thinning of the camera module for finger authentication, there is a problem that alignment between the prism and the camera module is becoming more difficult than in the conventional configuration.
这里,本发明的目的在于提供以简单的方法实现棱镜和摄像机模块的对位,从而得到稳定的摄像品质的生物体认证用摄像模块等。Here, an object of the present invention is to provide a biometric authentication camera module and the like that achieve stable image quality by aligning a prism and a camera module with a simple method.
为解决上述问题,涉及本发明的生物体认证用摄像模块,其特征在于,包括:光源,其将所要透射生物体的光照射到生物体上;棱镜,其具有包含射进透射生物体后的光的入射区域的入射面、将从入射区域射进的光进行反射的反射面和射出用反射面反射的光的射出面;摄像机模块,其具有对从棱镜的射出面射出的光进行成像的透镜和接受用透镜成像的光并转换为电信号再输出的摄像元件;以及箱体,其将棱镜保持在规定位置上并具有将摄像机模块嵌合在棱镜的射出面的位置上并进行安装的安装部,从棱镜的射出面射出的光在安装于箱体上的摄像机模块的摄像元件上进行成像。In order to solve the above problems, the camera module for biometric authentication of the present invention is characterized in that it includes: a light source, which irradiates the light to be transmitted through the living body onto the living body; The incident surface of the incident region of the light, the reflective surface that reflects the light entering from the incident region, and the exit surface of the light reflected by the reflective surface; the camera module, which has imaging functions for the light emitted from the exit surface of the prism A lens and an imaging element that receives the light formed by the lens and converts it into an electrical signal and then outputs it; and a box that holds the prism at a predetermined position and has a camera module that is fitted and installed at the position of the exit surface of the prism In the mounting part, the light emitted from the emitting surface of the prism forms an image on the imaging element of the camera module mounted on the housing.
在上述生物体认证用摄像模块中,其特征在于,箱体的安装部是嵌合在摄像机模块的收放透镜的镜筒部上的凹部。In the camera module for biometric authentication described above, the mounting portion of the housing is a recess that fits in the lens barrel portion of the camera module for housing the lens.
在上述生物体认证用摄像模块中,其特征在于,摄像机模块还具有装配件,该装配件具备安装在箱体的安装部上的凸部或凹部,箱体的安装部具有与装配件的凹部或凸部嵌合的凹部或凸部。In the above camera module for biometric authentication, it is characterized in that the camera module further has a fitting, the fitting has a convex portion or a concave portion mounted on the mounting portion of the box, and the mounting portion of the casing has a concave portion with the mounting portion. Or the concave part or the convex part which the convex part fits.
为解决上述问题,涉及本发明的箱体,其特征在于,具有:保持部,其将射进透射生物体后的光并射出的棱镜保持在规定位置上;以及安装部,其将把用摄像元件接受到的光转换为电信号并输出的摄像机模块嵌合安装在从棱镜射出来的光在摄像元件上进行成像的位置上。In order to solve the above-mentioned problems, the box of the present invention is characterized in that it has: a holding part, which holds a prism that enters and passes through a living body and emits it at a predetermined position; The camera module that converts the light received by the element into an electrical signal and outputs it is mounted on the position where the light emitted from the prism forms an image on the imaging element.
在上述箱体上,其特征在于,安装部是嵌合在摄像机模块的收放有透镜的镜筒部上的凹部。In the case described above, the mounting portion is a concave portion fitted in a lens barrel portion of the camera module in which the lens is housed.
在上述箱体上,其特征在于,安装部是与形成于摄像机模块的装配件上的凸部或凹部嵌合的凹部或凸部。In the case described above, the mounting portion is a concave portion or a convex portion that fits into a convex portion or a concave portion formed on an attachment of the camera module.
为解决上述问题,涉及本发明的摄像机模块,其特征在于,具有:透镜,其对从射进了透射生物体后的光的棱镜射出的光进行成像;摄像元件,其将用透镜成像后的光转换为电信号;以及装配件,形成于由透镜和摄像元件构成的规定位置上并具有与箱体的安装部嵌合的凹部或凸部且在用透镜对从棱镜射出来的光进行成像的位置上配置摄像元件。In order to solve the above-mentioned problems, the camera module of the present invention is characterized in that it has: a lens for forming an image of light emitted from a prism that has entered light transmitted through a living body; Light is converted into an electrical signal; and an assembly is formed at a predetermined position composed of a lens and an imaging element and has a concave or convex portion fitted with a mounting portion of a case and forms an image of light emitted from a prism with the lens The camera element is arranged at the position.
为解决上述问题,涉及本发明的生物体认证装置,其特征在于,具有:光源,其将所要透射生物体的光照射到生物体上;棱镜,其具有包含射进透射生物体后的光的入射区域的入射面、将从入射区域射进后的光进行反射的反射面和射出用反射面反射后的光的射出面;箱体,其具有安装部并将棱镜保持在规定位置上;摄像机模块,其具有嵌合安装在箱体的安装部上并在安装于安装部上时对从棱镜的出射面射出的光进行成像的透镜,和接受用透镜成像的光并转换为电信号再输出的摄像元件;识别机构,其对从摄像机模块的摄像元件输出的电信号进行解析并识别生物体的血管图形;保持机构,其预先保持生物体的血管图形;以及认证机构,其将用识别机构识别出的血管图形和保持在保持机构中的血管图形进行比较从而进行个体认证。In order to solve the above problems, the biometric authentication device of the present invention is characterized in that it has: a light source, which irradiates the light to be transmitted through the living body onto the living body; The incident surface of the incident area, the reflective surface that reflects the light incident from the incident area, and the exit surface of the light reflected by the exit reflective surface; the housing, which has a mounting part and holds the prism at a predetermined position; the camera The module has a lens that is fitted and installed on the installation part of the box and images the light emitted from the exit surface of the prism when it is installed on the installation part, and receives the light imaged by the lens and converts it into an electrical signal and then outputs it the imaging element of the camera module; the recognition mechanism, which analyzes the electrical signal output from the imaging element of the camera module and recognizes the blood vessel pattern of the living body; the holding mechanism, which holds the blood vessel pattern of the living body in advance; and the authentication mechanism, which uses the recognition mechanism The recognized blood vessel pattern is compared with the blood vessel pattern held in the holding mechanism for individual authentication.
再有,存在从光源照射出的光在生物体表面反射并作为无用光进入摄像模块内的问题。这种情况,必须排除无用光,检测透射生物体的光成为困难。另外,照射的光中的进入到生物体的光量变少,其结果,透射生物体的光量变少。Furthermore, there is a problem that the light irradiated from the light source is reflected on the surface of the living body and enters the imaging module as unnecessary light. In this case, it is necessary to exclude unnecessary light, and it becomes difficult to detect light transmitted through a living body. In addition, the amount of light entering the living body among the irradiated light decreases, and as a result, the amount of light passing through the living body decreases.
在此,本发明的目的在于提供一种防止在生物体表面的反射并确保了透射生物体的光量的生物体认证用摄像模块。Here, an object of the present invention is to provide a biometric authentication imaging module that prevents reflection on the surface of a living body and ensures the amount of light transmitted through the living body.
为解决上述问题,涉及本发明的生物体认证用摄像模块,其特征在于,具有:光源,其将所要透过生物体的光照射到生物体上;棱镜,其具有包含射进透射生物体后的光的入射区域的入射面、将从入射区域射进的光进行反射的反射面和射出用反射面反射的光的射出面;摄像机模块,其具有对从棱镜的射出面射出的光进行成像的透镜,和将用透镜成像的光转换为电信号再输出的摄像元件;以及箱体,其将棱镜和摄像机模块分别保持在规定位置上,光源配置成从光源照射的光与棱镜的入射面的法线为相同方向。In order to solve the above-mentioned problems, the camera module for biometric authentication of the present invention is characterized in that it has: a light source, which irradiates the light to be transmitted through the living body onto the living body; The incident surface of the incident area of the light, the reflective surface that reflects the light incident from the incident area, and the exit surface of the light reflected by the reflective surface; the camera module, which has the imaging function of the light emitted from the exit surface of the prism lens, and an imaging element that converts the light formed by the lens into an electrical signal and then outputs it; and a box that holds the prism and the camera module at specified positions, and the light source is configured so that the light irradiated from the light source and the incident surface of the prism The normals of are in the same direction.
在上述生物体认证用摄像模块中,其特征在于,光源配置在不是棱镜的入射面、反射面、射出面的任一面的面一侧。In the biometric authentication imaging module described above, the light source is disposed on a surface side that is not any one of an incident surface, a reflective surface, and an outgoing surface of the prism.
在上述生物体认证用摄像模块中,其特征在于,光源其光源的视场角为45度以内。In the biometric authentication camera module described above, the light source has an angle of view of the light source within 45 degrees.
在上述生物体认证用摄像模块中,其特征在于,光源包含LED和聚光透镜。In the biometric authentication imaging module described above, the light source includes an LED and a condenser lens.
为解决上述问题,本发明的生物体认证装置,其特征在于,具有:光源,其将所要透过生物体的光照射到生物体上;棱镜,其具有包含射进透射生物体后的光的入射区域的入射面、将从入射区域射进后的光进行反射的反射面和射出用反射面反射的光的射出面;摄像机模块,其具有对从棱镜的射出面射出的光进行成像的透镜,和将用透镜成像的光转换为电信号再输出的摄像元件;以及箱体,其将棱镜和摄像机模块分别保持在规定位置上;识别机构,其对从摄像机模块的摄像元件输出的电信号进行解析并识别生物体的血管图形;保持机构,其预先保持生物体的血管图形;以及认证机构,其将用识别机构识别出的血管图形和保持在保持机构中的血管图形进行比较从而进行个体认证,光源配置在延长了连结棱镜的入射区域和摄像机模块的摄像元件的光程的区域以外的区域中,并配置成由光源照射的光与棱镜的入射面的法线为相同方向。In order to solve the above-mentioned problems, the biometric authentication device of the present invention is characterized in that it has: a light source, which irradiates the light to be transmitted through the living body onto the living body; The incident surface of the incident area, the reflective surface that reflects the light entering from the incident area, and the exit surface that emits the light reflected by the reflective surface; the camera module, which has a lens for imaging the light emitted from the exit surface of the prism , and an imaging element that converts the light imaged by the lens into an electrical signal and then outputs it; and a box that keeps the prism and the camera module at predetermined positions respectively; Analyzing and recognizing the blood vessel pattern of the living body; holding means, which holds the blood vessel pattern of the living body in advance; For certification, the light source is arranged in an area other than the area extending the optical path connecting the incident area of the prism and the imaging element of the camera module, and the light irradiated by the light source is arranged in the same direction as the normal to the incident surface of the prism.
根据本发明,可提供一种实现了小型化、薄型化的生物体用摄像模块。According to the present invention, it is possible to provide a living body imaging module that has been reduced in size and thickness.
结合附图,从下面的本发明的实施方式的说明中,本发明的其它目的、特征和优点将显而易见。Other objects, features and advantages of the present invention will be apparent from the following description of the embodiments of the present invention in conjunction with the accompanying drawings.
附图说明Description of drawings
图1是实施例1的手指认证用摄像模块的外观立体图。FIG. 1 is an external perspective view of a camera module for finger authentication according to
图2是实施例1的摄像模块的剖视图。2 is a cross-sectional view of the camera module of the first embodiment.
图3A、3B是用于说明实施例1的摄像模块中的光导管的近红外线照射的图。3A and 3B are diagrams for explaining near-infrared irradiation of the light guide in the camera module of the first embodiment.
图4是用于说明实施例1的摄像模块的光学配置的图。FIG. 4 is a diagram for explaining an optical arrangement of a camera module according to
图5A-5C是表示实施例2的摄像模块的方式的图。5A-5C are diagrams showing the form of the camera module of the second embodiment.
图6是表示实施例2的摄像模块的方式的剖视图。FIG. 6 is a cross-sectional view showing an aspect of a camera module according to Embodiment 2. FIG.
图7是表示在实施例2的摄像模块上设置了手指导向件的方式的图。FIG. 7 is a diagram showing a mode in which a finger guide is provided on the camera module according to the second embodiment.
图8是表示在实施例2的摄像模块中使用了广角透镜单元组并在摄像元件上进行成像的例子的图。8 is a diagram showing an example in which a wide-angle lens unit group is used in the imaging module of the second embodiment to form an image on the imaging element.
图9是表示实施例2的摄像模块的方式的外观立体图。9 is an external perspective view showing the form of the camera module of the second embodiment.
图10是实施例2的摄像模块的分解图。FIG. 10 is an exploded view of the camera module of the second embodiment.
图11是用于说明实施例2的摄像模块的图。FIG. 11 is a diagram for explaining the camera module of the second embodiment.
图12是用于说明实施例2的摄像模块的其它实施方式的图。FIG. 12 is a diagram for explaining another embodiment of the camera module of Example 2. FIG.
图13是表示采用了实施例1的摄像模块的实施例4的手指认证装置的结构概要的方框图。FIG. 13 is a block diagram showing an outline of the configuration of a finger authentication device of a fourth embodiment using the camera module of the first embodiment.
图中:In the picture:
1、30、40-手指认证用摄像模块(生物体认证用摄像模块);12-棱镜;13-透镜单元;14-摄像元件;15-窗部;16-LED(光源);1, 30, 40-camera module for finger authentication (camera module for biometric authentication); 12-prism; 13-lens unit; 14-camera element; 15-window; 16-LED (light source);
17-光导管;18-照射窗;19-电路基板;20-滤光器;21-第一反射面;17-light guide; 18-irradiation window; 19-circuit substrate; 20-optical filter; 21-first reflective surface;
22-入射面、第二反射面;22a-入射区域;23-第三反射面;22-incident surface, second reflection surface; 22a-incidence area; 23-third reflection surface;
24-射出面;26-识别部;27-手指导向件;28-广角透镜单元组;24-Emitting surface; 26-Identification part; 27-Finger guide; 28-Wide-angle lens unit group;
31、41-箱体;31a、41a-保持部;31b、41b-安装部;31, 41-box body; 31a, 41a-holding part; 31b, 41b-installation part;
32、42-光通过孔;33、43-摄像机模块;34a~34f-LED;41c-凹部;32, 42-light passing hole; 33, 43-camera module; 34a~34f-LED; 41c-recess;
43a-装配件;43b-凸部;50-手指;51-保持部;52-认证部;43a-assembly part; 43b-convex part; 50-finger; 51-holding part; 52-authentication part;
100-手指认证装置(生物体认证装置)。100 - Finger authentication device (biometric authentication device).
具体实施方式Detailed ways
对实施例1进行说明。Example 1 will be described.
以下,参照附图,对用于实施本发明的最佳方式(实施方式)详细进行说明。Hereinafter, the best mode (embodiment) for carrying out the present invention will be described in detail with reference to the drawings.
图1是表示作为涉及本实施方式的生物体认证用摄像模块的一例的手指认证用摄像模块1(以下称之为“摄像模块”)的外观立体图,图2是涉及本实施方式的摄像模块1的剖视图。FIG. 1 is an external perspective view showing a finger authentication camera module 1 (hereinafter referred to as “camera module”) as an example of a biometric authentication camera module according to this embodiment, and FIG. 2 is a perspective view of the
如图1、图2所示,摄像模块1的结构是在箱体10中安装了棱镜12、透镜单元13、摄像元件14、以及电路基板19。并且,箱体10具有作为光源的一例的LED16和光导管17。As shown in FIGS. 1 and 2 , the structure of the
箱体10起到包围摄像模块1并对其进行保护的罩的作用。箱体10在对应于用后述的棱镜12射进近红外线的入射区域22a的位置上形成由窗部15,在窗部15的底部位置安装有黑色滤光器20,该黑色滤光器20防止反射,透射红外线且遮断可见光并保护棱镜12。另外,在箱体10上安装有具备LED16的光导管17。再有,在箱体10上形成有照射LED16所放射的近红外线的照射窗18。The
对应于棱镜12的入射区域22a的箱体10的窗部15其端面倾斜地形成(参照图3B),起到在手指50放置在窗部15上时,不会压迫静脉而使其发生变形的作用。并且成为手指50进入窗部15,即便是接触边缘也不疼的形状。The end surface of the
如图2所示,棱镜12的剖面是大致为菱形的五边形。但是,该剖面形状不限于图2所示的形状。不仅是将第一反射面21和入射面22的边界部分进行倒角的图2所示的形状,还可以是延长了第一反射面21和入射面22的四边形的剖面。棱镜12的材质最好是在所使用的波长区域(可见光~近红线,500至1200nm)为透明的树脂或者玻璃。在小型化方面,最好是折射率高的一种。在树脂中,可以使用丙烯、环烯聚合物,脂环族丙烯树脂,透明氟树脂、透明聚酰亚胺、环氧树脂,苯乙烯系聚合物、聚苯乙烯对苯二甲酸、聚丙烯、聚苯乙烯、硅酮树脂,聚酰胺酰亚胺,聚芳酯(PAR),包含硫磺的聚砜,聚醚砜等。还可以使用在树脂中分散有二氧化硅(SiO2)和五氧化二钽(Ta2O5)等的无机粒子的物质。至于玻璃可使用一般的光学玻璃。As shown in FIG. 2 , the cross section of the
将与箱体10的窗部15相对的棱镜12的面即入射面22中的与窗部15直接面对的从手指50放射的近红外线所入射的区域称为入射区域22a。An area of
关于棱镜12的入射面22之外的面,利用图4在后面进行叙述。The surfaces other than the
透镜单元13由树脂或玻璃构成。透镜单元13对在棱镜12内反复反射(后述)并放射出的近红外线进行聚光,并在后述的摄像元件14上成像。在透镜单元13内设有仅透射特定窄带域(800至1200nm)的近红外线的带通滤光器(省略图示)。The
摄像元件14例如由CCD(Charge Coupled Device)或CMOS(Complementary Metal Oxide Semiconductor)等构成。为了摄像模块1的小型化、薄型化,最好使用1/7英寸型,优选1/7.4英寸型以下的大小的VGA模块。将利用透镜单元13在受光面(省略图示)上成像的近红外线转换为电信号并输出。The
作为LED16,使用发出对生物体具有透射性的近红外线的发光二极管;LED(Light Emitting Diode)。LED17因为可小型化并以低耗电且温度上升也小,所以适合作为近红外线的光源。发出的近红外线波长最好是800至1000nm,更好是850至950nm。As the
光导管17是丙烯及其它树脂,最好是透射LED16放出的近红外线的树脂。作为光导管的材质可组合使用先前列举的树脂和玻璃。The
图3A、3B是用于说明使用了光导管17的近红外线照射的图。3A and 3B are diagrams for explaining near-infrared irradiation using the
图3A是用于说明将光导管17安装在箱体10上状态的图。FIG. 3A is a diagram for explaining a state in which
如图3A所示,在光导管17的侧端面上安装有LED16。并且,为了可从照射窗18放出近红外线,以光导管17的放射面为照射窗18侧的方式安装在箱体10上。从LED16放射出来的近红外线在光导管17的曲线背面反射并从放射面放射。并且,从照射窗18向窗部15一侧放射。As shown in FIG. 3A ,
图3B是用于说明在将近红外线照射到手指50上时的窗部15附近的配置的剖视图。FIG. 3B is a cross-sectional view for explaining the arrangement near the
如图3B所示,光导管17的放射面朝向斜上方向(手指50里侧的方向)。由此,所放射的近红外线向手指50的里侧照射。因此,可对处于从手指皮下至3mm左右的规定范围内的静脉照射近红外线。As shown in FIG. 3B , the radiation surface of the
在箱体10的照射窗18中,光导管17的棱镜12侧(下侧)的罩比光导管17的放射面突出。由此,可防止从光导管17放射出来的近红外线直接进入到棱镜12内。再有,电路基板19自身不直接设置在摄像透镜1上,可以另外搭载在安装有摄像模块1的产品内等。In the
返回到图2,安装在电路基板19上的电子零件包括信号处理部25和识别部(26),信号处理部25对摄像元件14输出的电信号实施除去干扰和修正等的信号处理(参照图13),识别部(26)对用信号处理部25进行信号处理后的图像信号进行解析并识别手指50的静脉图形再输出(参照图13)。电路基板19基于用摄像元件14输出后的电信号将静脉图形输出到外部。关于上述内容利用图13所示的方框图在后面进行叙述。再有,安装在电路基板19上的电子零件在图2中配置在电路基板19上的除了棱镜12与电路基板19抵接的第三反射面23区域的区域中。Returning to Fig. 2, the electronic components mounted on the
以下,利用附图说明具有以上所说明的结构的摄像模块1中的光学配置。Hereinafter, the optical arrangement in the
图4是用于说明涉及本实施方式的摄像模块1的光学配置的图。FIG. 4 is a diagram for explaining the optical configuration of the
从LED16经光导管17并从照射窗18照射出来的近红外线在手指50中漫射并反射,再从窗部15向摄像模块1内入射。The near-infrared rays radiated from the
通过滤光器20从棱镜12的入射面22中的与窗部15面对的入射区域22a入射进来的近红外线照在入射面22的对面所配置的第一反射面21上。在该第一反射面21上蒸镀有铝蒸镀等的金属反射膜,对入射进来的近红外线进行反射。The near-infrared rays entering through the
用第一反射面21反射的近红外线如图4所示向包含入射区域22a的入射面22方向前进。在入射面22中,在第一反射面21反射的近红外线以相对入射面22的法线方向具有规定角度的方式入射。入射面22下次作为反射面发挥作用,所以以下还称之为第二反射面。The near-infrared rays reflected by the first
在包含入射区域22a的第二反射面22中,入射区域22a为了确保近红外线的透光性,而不形成金属蒸镀等的反射膜。但是,入射区域22a以外的区域被箱体10隐藏,近红外线不会透射。另外,越远离第一反射面21入射角越小。因此,在入射区域22a以外的区域形成有反射膜。作为反射膜,可使用Al、Ag、Al合金、Ag合金、Cu、Au等的金属反射膜,或者将折射率不同的透明电介质膜进行层叠后的反射膜。In the second
在第一反射面21反射并入射到第二反射面22中的近红外线的入射光利用棱镜12的折射率和向第二反射面的入射角度的关系,在入射区域22a中将近红外线进行全反射。与此相对,即使在入射区域22a以外的区域中的入射角是不会全反射的角度,也会被反射膜反射。并且,这样用第二反射面22反射的近红外线朝向配置在第二反射面22的对面的第三反射面23。The near-infrared incident light reflected on the first
该第三反射面23与第一反射面21相同,蒸镀金属反射膜,将近红外线反射后向射出面24的方向折弯。近红外线相对射出面24垂直进入,并透过射出面24而朝向透镜单元13。并且,用透镜单元13聚光的近红外线用摄像元件14进行成像。虽然在射出面24上未设有反射膜,但为了防止无用光的入射,也可以在出射光的透射区域以外的部分设置反射膜。Like the first
与入射面22(第二反射面)、第一反射面21、第三反射面23、射出面24不同的面(以下,称之为“侧面”)为了吸收从近紫外线至近红外线的光而进行涂装。通过对侧面进行涂装,例如最好是可吸收从近紫外线至近红外线区域的光。更为详细地说,最好是可吸收用于生物体认证(手指认证)的光的波长成分。在本实施方式中,作为光源采用放出近红外线或者可见光的LED16,所以最好是进行吸收从近红外线至可见光区域的光的涂装。The surface (hereinafter referred to as "side surface") different from the incident surface 22 (second reflection surface), the
在手指50中,在肌肉组织和骨骼等的对近红外线具有透射性的生物体组织中,近红外线透射或者漫射。与此相对,例如血液中的血红蛋白等对近红外线具有吸收性的血管部分吸收近红外线。因此,在用摄像元件14成像后的图像中,血管部分显现为暗,其它组织部分显现为明亮。摄像元件14将成像后的图像转换为电信号并向电路基板19输出。In the
这样,根据本实施方式的摄像模块1,棱镜12具有多个反射面,在棱镜12内反复多次反射。由于根据棱镜12的形状决定多个反射面的配置,所以比使用多个反射镜进行反射的情况,能够以小尺寸准确进行反射面的配置。由此,可将摄像模块1小型化、薄型化。基本上在反射面中,以入射角的关系在不可能全反射的区域中形成反射膜。In this way, according to the
在摄像模块1中,可将较长的光程折弯配置在薄的棱镜12内。由此,可实现薄型的摄像模块1。本实施方式的情况,在从窗部15的端部至摄像元件14的背面的距离为25mm之处,如图4所示,将入射面22和第一反射面21间的角度做成为25度,在入射面22和射出面24之间的角度的补角为50度时,在5mm厚的棱镜12内可实现光程长的折弯。In the
根据摄像模块1,在窗部15的大小大致为20mm见方时,可使包含箱体10及电路基板19的厚度为10mm以下。另外,可使光学偏斜实现为0.7%和2%以下。在手指50的静脉位置上,可实现拍摄层深度为1mm以上,分辨能力30μm。According to the
另外,作为第二反射面22通过利用包含具有透光性的入射区域22a的入射面22,从而可折弯配置光程长。In addition, by using the
再有,在入射区域22a中使近红外线全反射,所以可确保入射区域22a的透光性的同时用作反射面。In addition, since near-infrared rays are totally reflected in the
再有另外,在包含入射区域22a的入射面22中,在无法利用全反射的区域中形成反射膜,所以可靠进行在包含入射区域22a的第二发射面22内的近红外线的反射。In addition, since the reflective film is formed on the
对实施例2进行说明。Example 2 will be described.
图5A至图8是表示摄像模块的其它实施方式。5A to 8 show other embodiments of the camera module.
图5A在棱镜内进行4次反射这一点上与图4所示的摄像模块1不同。在图4所示的摄像模块1中,在约为5mm厚的棱镜12内以3次反射将从入射区域22a至摄像元件14背面的距离进行折弯,与此相对,图5A所示的应用例1中,以4次反射在5mm厚的棱镜12内进行折弯。FIG. 5A is different from the
图5B中第三反射面23接近于第二反射面22这一点与图4所示的摄像模块1不同。在图5B所示的应用例2中,在约5mm厚的棱镜内以4次反射进行折弯。The third
图5C中棱镜内的反射为2次这一点与图4所示的摄像模块1不同。图5C所示的应用例3中,在约6mm厚的棱镜内以2次反射进行折弯。5C is different from the
图6是在图2中的第一反射面21的背面配置LED16结构的摄像模块30的剖视图。FIG. 6 is a cross-sectional view of the
在摄像模块30中构成为,在第一反射面21可利用全反射的区域不蒸镀金属反射膜,使LED16发出的近红外线透射,仅在第一反射面21的不进行全反射的区域中蒸镀反射膜。具体地说,第一反射面21中的接近于入射区域22a的区域是全反射区域,不蒸镀反射膜。对手指50从侧面照射了近红外线的图2所示的摄像模块1中,在手指50的中央附近存在近红外线的光量不足的情况。但是,在该图6所示的摄像模块30中,由于从手指50的正面附近照射近红外线,所以可改善了手指50中央部分的光量不足。In the
图7是表示设有限制手指侧面部的手指导向件27和限制手指前端部的手指导向件27a的摄像模块40的图。在此,虽然手指导向件27a不是必须的,但通过设置它,可准确地限制手指,可提高识别精度。FIG. 7 is a diagram showing a
在摄像模块1中,受验者可凭直觉理解放置手指50的位置。另外,可从较低的位置遮断射入到手指50中的外部光。再有,通过在手指导向件27上配置照射窗18,从而与图1及图2所示的摄像模块1相比,可在接近要摄像的静脉的位置(例如,位于从手指50皮下至3mm以下程度的规定范围内的静脉)上照射近红外线。另外,对手指50可实现均匀照射。In the
图8是表示不使用棱镜而仅利用广角透镜单元组28在摄像元件14上成像的一例的图。FIG. 8 is a diagram showing an example of forming an image on the
是一个不使用棱镜而将摄像模块薄型化的例子。具有可使视场角变广的优点。利用这种结构,还可使摄像模块整体在7mm以下。This is an example of reducing the thickness of the camera module without using a prism. It has the advantage of widening the field of view. Utilizing this structure, the overall size of the camera module can also be kept below 7mm.
此外,还可以做成在滤光器20的表面(手指50一侧的面)形成菲涅耳透镜,构成远心光学系统(Telecentric optical system)(省略图示)。通过使向棱镜12的入射光大致为平行光,从而即使拍摄体位置(手指)波动,像(静脉图形)的大小变化也不大,具有图像处理简单的优点。由于棱镜12的包含窗15的面用作全反射面,所以虽然无法形成菲涅耳透镜单元,但通过在滤光器20上形成菲涅耳透镜单元,从而不会妨碍棱镜12内的全反射。In addition, a Fresnel lens may be formed on the surface of the filter 20 (the surface on the
再有,在上述实施方式中,将棱镜12的反射面全都做成平面,但本发明不限于此。还可以用曲面形成几个反射面(省略图示)。通过这种结构,可省去透镜单元13,可实现进一步的小型化。In addition, in the above-mentioned embodiment, all the reflective surfaces of the
对实施例3进行说明。Example 3 will be described.
图9至图12是表示上述实施方式的摄像模块的其他实施方式的图。9 to 12 are diagrams showing other embodiments of the camera module of the above-mentioned embodiment.
在图9至图11所示的摄像模块30中,箱体3 1保持棱镜12和摄像机模块33。在箱体31的横向配置有作为光源的一例的LED34a~34f。箱体31例如将由黑色聚碳酸酯等的树脂成型而制作。箱体31在保持部31a上保持棱镜12,在棱镜12的射出面24一侧的安装部31b上形成凹部。箱体31的材料最好使用例如吸收从近紫外线至近红外线区域的光的材料。更为详细地叙述,最好是吸收用于生物体认证(手指认证)的光波长成分的材料。在本实施方式中,作为光源采用放出近红外线或可见光的LED34a~34f,所以期望是吸收从近红外线至可见光的光的材料。In the
再有,箱体31为使从棱镜12的射出面24射出的光在箱体31反射后作为杂散光(无用光)不会再射入到棱镜12内,还可以在保持棱镜12的保持部31a的内侧面(面对棱镜12的面)实施涂装。即便是涂装箱体31的情况,例如最好是吸收从近紫外线至近红外线区域的光,更为详细地叙述,最好是吸收用于生物体认证(手指认证)的光波长成分。在本实施方式中,作为光源采用放出近红外线或可见光的LED34a~34f,所以期望是吸收从近红外线至可见光的光的涂装。Furthermore, the
当在箱体31的保持部31a上组装棱镜12后,棱镜12保持在箱体31的规定位置上。并且,在形成于安装部31b上的凹部上嵌合摄像机模块33时,在棱镜12和摄像机模块33之间进行对位。When the
在箱体31的安装部31b上形成开有圆形的光通过孔32。光通过孔32与形成于安装部31b上的凹部同心,并使从棱镜12的射出面24射出的光通过,再入射到摄像机模块33中。光通过孔32以使摄像机模块33摄像所需的光量通过光通过孔32的方式决定直径。由此,减少从棱镜12向摄像机模块33进入的杂散光(无用光)。即、摄像机模块33的光学系统是前可变光阑结构的情况,通过使光通过孔32的直径与摄像所要求的前可变光阑的直径一致,从而在从射出面24射出来的光通过光通过孔32时,进入摄像所需的光量。因此,摄像机模块33可省略前可变光阑。摄像机模块33具有前可变光阑(省略图示)的场合,使光通过孔33的直径为摄像机模块33的前可变光阑的最大直径以上,从而可进行摄像机模块33的滤光调整功能。A circular
LED34a~34f具有与图2所示的LED16等同的性能。使用放出对生物体具有透射性的近红外线或可见光的发光二极管。LED34a~34f配置在将棱镜12的入射区域22a(参照图2)和摄像机模块33的摄像元件(参照图2)连接的光程延长了的区域以外的区域中。LED34a~34f例如如图9所示配置在不是棱镜12的入射面22、第一反射面21、第三反射面22、射出面24(全都参照图2)的任一面的面的侧面一侧。LED34a-34f has the performance equivalent to LED16 shown in FIG. 2. A light-emitting diode that emits near-infrared rays or visible light that is transparent to living organisms is used. The
LED34a~34f最好使用具有较强方向性的元件。例如,期望是视场角(半值全角:发光强度在峰值一半时取得的光的出射强度)为45度以内,更好是30度以内。再有,即便是方向性较弱的LED通过与聚光透镜组合,也可代为使用。It is preferable to use an element with strong directivity for LED34a-34f. For example, it is desirable that the viewing angle (full angle at half maximum: the output intensity of light obtained when the luminous intensity is half of the peak value) is within 45 degrees, more preferably within 30 degrees. Furthermore, even LEDs with weak directivity can be used instead by combining them with condenser lenses.
LED34a~34f在与棱镜12的入射面22的法线相同的方向放射光。由此,LED34a~34f照射出来的光对生物体以大致直角照射,所以在生物体表面的反射变少。再有,还可以使用了未图示的光导管,对生物体以大致直角照射。如果使用光导管则可缓和LED配置的制约。The
在图12所示的摄像模块40中,箱体41保持有棱镜12和摄像机模块43。通过将形成于箱体41的安装部41b上的凹部41c和形成于摄像机模块43的装配件43a上的凸部43b嵌合,从而将摄像机模块43安装在箱体41上这一点与图11的在形成于箱体31的安装部31b上的凹部上嵌合摄像机模块33并进行固定的结构不同。In the
箱体41在保持部41a上保持棱镜12。在箱体41的安装41b上形成有凹部41c。凹部41c为了将摄像机模块43固定在规定位置上而形成两个以上。在箱体41的安装部41b上形成有光通过孔42这一点与图11所示的箱体31相同。The
对实施例4进行说明。Example 4 will be described.
接着,以下利用附图对搭载了上述摄像模块1的手指认证装置100进行说明。Next, the
图13是表示作为生物体认证装置的一例的手指认证装置100的结构概要的方框图。该手指认证装置100可应用与笔记本PC等的个人设备中的本人认证。FIG. 13 is a block diagram showing an outline of the configuration of a
如图13所示,涉及本实施方式的手指认证装置100具备:摄像模块1;预先保持静脉图形的保持部51;将在识别部(后述)中识别出的手指50的静脉图形与预先保持在保持部51中的静脉图形对照进行个体认证的认证部52。摄像模块1具备:将近红外线照射到手指50上的LED16;取得从手指50放出的近红外线的摄像元件14;对从摄像元件14输出的电信号实施信号处理的信号处理部25;基于在信号处理部25中进行了信号处理的图像信号识别静脉图形的识别部26。As shown in FIG. 13 , the
信号处理部25与摄像元件14和识别部26连接,对从摄像元件14输出来的电信号进行干扰除去和修正等的信号处理。The
识别部26对在信号处理部25进行信号处理后的图像信号进行解析,对手指50的静脉图形进行识别后再输出。The
保持部51与认证部52连接。保持部51预先保持利用摄像元件1拍摄的多个静脉图形。另外,根据后述认证部52的指示,将所保持的静脉图形向认证部52输出。再有,从识别部26获取在摄像模块1中新拍摄的并在识别部26识别的人手指50的静脉图形并与该人的个人信息联系起来保持。The holding
认证部52与保持部51和识别部26连接。认证部52将在摄像模块中拍摄的手指50的静脉图形和预先在保持部51保持的静脉图形相对照进行个体认证。The
其次,对利用手指认证装置100的生物体认证方法进行说明。Next, a biometric authentication method using the
在摄像模块1上配置手指50。LED16将近红外线照射到手指50上。透射手指50内部并漫射的近红外线从摄像模块1的窗部15向棱镜12内入射。A
在棱镜12内进行了反射的近红外线经过射出面24及透镜单元13向摄像元件14入射并成像。摄像元件14生成基于成像后的图像的电信号并向电路基板19输出。The near-infrared rays reflected in the
在取得电信号后的电路基板19上,信号处理部25对电信号实施干扰除去和修正并生成图像信号。并且,电路基板19内的识别部26基于生成的图像信号,生成手指50内的静脉图形,并向与摄像模块1连接的认证部52输出。这样,手指50内的静脉图形由摄像模块1拍摄并输出。On the
从摄像模块1取得静脉图形的认证部52与保持部51预先所保持的静脉图形相对照,进行个体认证。由此,手指认证装置100进行生物体认证。The
这样,根据涉及本实施方式的手指认证装置100,由于基于从实现了小型化、薄型化的摄像模块1输出的静脉图形进行个体认证,所以可实现手指认证装置100的小型化、薄型化。Thus, according to the
再有,在上述实施方式中,对应用于生物体认证中的使用了手指50的静脉图形的例子进行了说明,但本发明不限于此,例如,在手掌认证和人额头部分的血管认证中也可应用。In addition, in the above-mentioned embodiment, the example of using the vein pattern of the
本领域技术人员还应当理解到,尽管前述描述已经在本发明的实施方式中,但是本发明不限于此,还包含不背离本发明精神和所附权利要求范围的多种变化和修改。It should also be understood by those skilled in the art that although the foregoing descriptions have been in the embodiments of the present invention, the present invention is not limited thereto, and includes various changes and modifications that do not depart from the spirit of the present invention and the scope of the appended claims.
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Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101866419A (en) * | 2009-04-14 | 2010-10-20 | 株式会社日立制作所 | personal authentication device |
CN101685241B (en) * | 2008-09-23 | 2011-05-18 | 王尤山 | Active infrared camera |
CN102117404A (en) * | 2010-12-06 | 2011-07-06 | 公安部第一研究所 | Reflective finger vein feature acquisition device and personal identity authentication method thereof |
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Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2016126379A (en) * | 2014-12-26 | 2016-07-11 | 三星電子株式会社Samsung Electronics Co.,Ltd. | Authentication optical imaging apparatus and authentication system |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001351099A (en) * | 2000-03-31 | 2001-12-21 | Teshiku Yun | Optical fingerprint read sensor |
US20050249390A1 (en) * | 2004-04-29 | 2005-11-10 | Mcclurg George W | Method and apparatus for discriminating ambient light in a fingerprint scanner |
JP2006102360A (en) * | 2004-10-08 | 2006-04-20 | Matsushita Electric Ind Co Ltd | Living body information presentation device |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2692684B2 (en) * | 1988-05-09 | 1997-12-17 | 富士通株式会社 | Uneven shape detection method |
US5796858A (en) * | 1996-05-10 | 1998-08-18 | Digital Persona, Inc. | Fingerprint sensing system using a sheet prism |
JP5068001B2 (en) * | 2004-07-09 | 2012-11-07 | ソニー株式会社 | Information terminal equipment |
CN2746411Y (en) * | 2004-10-29 | 2005-12-14 | 一品国际科技股份有限公司 | Optical engine structure of fingerprint identifier |
JP2006198174A (en) * | 2005-01-20 | 2006-08-03 | Hitachi Omron Terminal Solutions Corp | Biometric authentication device using finger vein pattern |
-
2006
- 2006-12-13 JP JP2006336204A patent/JP4832273B2/en not_active Expired - Fee Related
-
2007
- 2007-12-11 CN CN 200710196840 patent/CN101201896B/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001351099A (en) * | 2000-03-31 | 2001-12-21 | Teshiku Yun | Optical fingerprint read sensor |
US20050249390A1 (en) * | 2004-04-29 | 2005-11-10 | Mcclurg George W | Method and apparatus for discriminating ambient light in a fingerprint scanner |
JP2006102360A (en) * | 2004-10-08 | 2006-04-20 | Matsushita Electric Ind Co Ltd | Living body information presentation device |
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US10474869B2 (en) | 2013-12-27 | 2019-11-12 | Nec Corporation | Authentication apparatus and prism member for authentication |
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