技术领域technical field
本发明涉及工业检测、安检、军事用途等领域，具体的，涉及一种太赫兹头盔式成像仪。The present invention relates to the fields of industrial detection, security inspection, military use, etc., and specifically relates to a terahertz helmet-mounted imager.
背景技术Background technique
安检系统主要用于机场、火车站、客运站等客流较集中的公共场所。为确保各线路及站点治安稳定和防恐反恐工作的落实，安检系统逐渐出现在各地铁车站中。The security inspection system is mainly used in airports, railway stations, passenger stations and other public places with relatively concentrated passenger flow. In order to ensure the security stability of each line and station and the implementation of anti-terrorism and anti-terrorism work, security inspection systems have gradually appeared in various subway stations.
在机场、地铁以及部分工厂，现用于物品检测的安检设备大都采用X射线。当待检品经X射线照射后，物质的密度和原子序数越大，物质吸收X射线的比率也会越大。食品中的蛋白质、碳水化合物、脂肪、水分以及骨头(钙质)、玻璃(硅质)、金属和毛发等成分均对X射线有不同的吸收比率。X射线检测系统就是根据上述原理实现。In airports, subways, and some factories, most of the security inspection equipment currently used for object detection uses X-rays. When the object to be inspected is irradiated by X-rays, the greater the density and atomic number of the substance, the greater the ratio of the substance to absorb X-rays. Proteins, carbohydrates, fats, water, bones (calcium), glass (silicon), metals and hair in food all have different absorption ratios for X-rays. The X-ray detection system is realized according to the above principles.
然而X射线不带电荷，穿透人体时，与体内物质作用产生“次级粒子”，使物质电离，这一现象称为电离辐射，电离辐射非常危险，长时间的低强度照射能够引起遗传物质的改变，引起癌症等慢性疾病，而高强度的电离辐射能够杀人于无形之中。However, X-rays have no charge. When they penetrate the human body, they interact with the substances in the body to produce "secondary particles" to ionize the substances. This phenomenon is called ionizing radiation. Ionizing radiation is very dangerous. Long-term low-intensity exposure can cause genetic material Changes in the human body can cause chronic diseases such as cancer, and high-intensity ionizing radiation can kill people invisible.
所以X射线检测设备需要提供大量的防护措施避免电离辐射泄漏。同时操作人员也需要进行防护以避免受到伤害。这样的特点给用户的使用带来风险另一方面也增加了使用成本。Therefore, X-ray inspection equipment needs to provide a large number of protective measures to avoid ionizing radiation leakage. At the same time, the operator also needs to be protected to avoid injury. Such characteristics bring risks to the user's use and increase the cost of use on the other hand.
而另外一种技术路线的红外探测设备虽然没有电离辐射等危害，但是只能解决在微光或者弱光环境下的显示、分辨等功能而无法实现穿透探测、识别的功能。Although the infrared detection equipment of another technical route has no harm such as ionizing radiation, it can only solve the functions of display and resolution in low-light or low-light environments, but cannot realize the functions of penetrating detection and recognition.
在安检领域以及军用和警用方面需要一种安全无害的检测系统，可以穿透墙壁、衣物从而在非接触的情况下实现检查、侦查、监视等工作。A safe and harmless detection system is needed in the field of security inspection and military and police applications, which can penetrate walls and clothing to achieve inspection, detection, surveillance, etc. without contact.
因此，如何设计一种安全无害的检测系统，是本领域技术人员急需解决的技术问题。Therefore, how to design a safe and harmless detection system is an urgent technical problem to be solved by those skilled in the art.
发明内容Contents of the invention
本发明的目的是提供一种太赫兹头盔式成像仪，该太赫兹头盔式成像仪采用了低强度对人体无害的太赫兹光线作为检测手段，具有很好的实用性和安全性。The purpose of the present invention is to provide a terahertz helmet-mounted imager, which uses low-intensity terahertz light that is harmless to the human body as a detection means, and has good practicability and safety.
为了实现上述技术目的，本发明提供了一种太赫兹头盔式成像仪，包括太赫兹光源、太赫兹物镜、太赫兹探测器、图像处理器、微显示器、目镜；所述太赫兹光源发出太赫兹光束，所述太赫兹光束反射后通过所述太赫兹物镜聚焦于所述太赫兹探测器，所述太赫兹探测器将所述太赫兹光束转换成数字信号，并传递给所述图像处理器，经过所述图像处理器处理后在所述微显示器上生成图像，通过所述目镜观看所述微显示器上的所述图像；所述成像仪呈头盔式。可选的，设置一组或者多组所述太赫兹物镜和所述太赫兹探测器。In order to achieve the above technical purpose, the present invention provides a terahertz helmet-mounted imager, including a terahertz light source, a terahertz objective lens, a terahertz detector, an image processor, a microdisplay, and an eyepiece; the terahertz light source emits terahertz a light beam, the terahertz beam is reflected and focused on the terahertz detector through the terahertz objective lens, and the terahertz detector converts the terahertz beam into a digital signal and transmits it to the image processor, After being processed by the image processor, an image is generated on the micro-display, and the image on the micro-display is viewed through the eyepiece; the imager is in the form of a helmet. Optionally, one or more sets of the terahertz objective lens and the terahertz detector are provided.
可选的，所述太赫兹探测器为非制冷太赫兹焦平面探测器。Optionally, the terahertz detector is an uncooled terahertz focal plane detector.
可选的，所述太赫兹探测器为制冷型太赫兹焦平面探测器。Optionally, the terahertz detector is a cooled terahertz focal plane detector.
可选的，所述太赫兹头盔式成像仪设有一组或者两组目镜。Optionally, the terahertz helmet-mounted imager is provided with one or two sets of eyepieces.
本发明提供的太赫兹头盔式成像仪，包括太赫兹光源、太赫兹物镜、太赫兹探测器、图像处理器、微显示器、目镜；太赫兹光源发出太赫兹光束，太赫兹光束反射后通过太赫兹物镜聚焦于太赫兹探测器，太赫兹探测器将太赫兹光束转换成数字信号，并传递给图像处理器，经过图像处理器处理后在微显示器上生成图像，通过目镜观看微显示器上的图像；成像仪呈头盔式。The terahertz helmet-mounted imager provided by the present invention includes a terahertz light source, a terahertz objective lens, a terahertz detector, an image processor, a microdisplay, and an eyepiece; the terahertz light source emits a terahertz beam, which passes through the terahertz beam after reflection The objective lens is focused on the terahertz detector, and the terahertz detector converts the terahertz beam into a digital signal and transmits it to the image processor, which generates an image on the microdisplay after being processed by the image processor, and watches the image on the microdisplay through the eyepiece; The imager is helmet-mounted.
该成像仪利用了太赫兹光束成像的方法，太赫兹光束属于低强度对人体无害的电磁辐射，无电离辐射，不会对物质产生破坏作用，与现有技术中的X射线相比，更安全更实用，用户和操作者均无需佩戴防护措施，系统安装简单使用方便。同时，太赫兹光束具有较强的穿透性和对金属材料的强反射特性，太赫兹的高频率使得成像的分辨率更高，所以可以很容易看到隐藏在衣物、鞋内的刀具、枪械等物品，提高了检测系统的检测准确性。The imager utilizes the imaging method of terahertz beams. Terahertz beams belong to low-intensity electromagnetic radiation that is harmless to the human body, without ionizing radiation, and will not cause damage to substances. Safer and more practical, users and operators do not need to wear protective measures, and the system is easy to install and easy to use. At the same time, terahertz beams have strong penetrability and strong reflection characteristics to metal materials. The high frequency of terahertz makes the imaging resolution higher, so it is easy to see knives and firearms hidden in clothing and shoes and other items to improve the detection accuracy of the detection system.
附图说明Description of drawings
附图是用来提供对本发明的进一步理解，并且构成说明书的一部分，与下面的具体实施方式一起用于解释本发明，但并不构成对本发明的限制。The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the description, together with the following specific embodiments, are used to explain the present invention, but do not constitute a limitation to the present invention.
图1为本发明所提供的太赫兹头盔式成像仪一种具体实施方式的原理示意图。FIG. 1 is a schematic diagram of a specific embodiment of a terahertz helmet-mounted imager provided by the present invention.
其中，图1中的附图标记和部件名称之间的对应关系如下：Wherein, the corresponding relationship between the reference numerals and component names in Fig. 1 is as follows:
电源模块1；太赫兹光源2；太赫兹物镜3；太赫兹探测器4；图像处理器5；微显示器6；目镜7。A power module 1; a terahertz light source 2; a terahertz objective lens 3; a terahertz detector 4; an image processor 5; a microdisplay 6;
具体实施方式Detailed ways
以下结合附图对本发明的具体实施方式进行详细说明。应当理解的是，此处所描述的具体实施方式仅用于说明和解释本发明，并不用于限制本发明。Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
请参考图1，图1为本发明所提供的太赫兹头盔式成像仪一种具体实施方式的原理示意图。Please refer to FIG. 1 . FIG. 1 is a principle schematic diagram of a specific embodiment of a terahertz helmet-mounted imager provided by the present invention.
本发明提供了一种太赫兹头盔式成像仪，包括太赫兹光源2、太赫兹物镜3、太赫兹探测器4、图像处理器5、微显示器6、目镜7；所述太赫兹光源2发出太赫兹光束，所述太赫兹光束反射后通过所述太赫兹物镜3聚焦于所述太赫兹探测器4，所述太赫兹探测器4将所述太赫兹光束转换成数字信号，并传递给所述图像处理器5，经过所述图像处理器5处理后在所述微显示器6上生成图像，通过所述目镜7观看所述微显示器6上的所述图像；所述成像仪呈头盔式。The present invention provides a terahertz helmet-mounted imager, comprising a terahertz light source 2, a terahertz objective lens 3, a terahertz detector 4, an image processor 5, a microdisplay 6, and an eyepiece 7; the terahertz light source 2 emits terahertz Hertz beams, the terahertz beams are reflected and focused on the terahertz detector 4 through the terahertz objective lens 3, and the terahertz detector 4 converts the terahertz beams into digital signals and transmits them to the The image processor 5 generates an image on the microdisplay 6 after being processed by the image processor 5, and watches the image on the microdisplay 6 through the eyepiece 7; the imager is in the form of a helmet.
太赫兹光源2发出的太赫兹光束照射到目标后，反射进入成像仪，在太赫兹物镜3的作用下聚焦于太赫兹探测器4，太赫兹探测器4将其转换成数字信号，并传递给图像处理器5，图像处理软件根据数字信号在微显示器6上生成显示图像，再通过目镜7放大从而获得人眼适宜观察的可见光图像。After the terahertz light beam emitted by the terahertz light source 2 irradiates the target, it is reflected into the imager and focused on the terahertz detector 4 under the action of the terahertz objective lens 3. The terahertz detector 4 converts it into a digital signal and transmits it to the The image processor 5 and the image processing software generate a display image on the micro-display 6 according to the digital signal, and then enlarge it through the eyepiece 7 to obtain a visible light image suitable for human eyes to observe.
该成像仪利用了太赫兹光束反射成像的方式，太赫兹属于低强度对人体无害的电磁辐射，无电离辐射，不会对物质产生破坏作用，与现有技术中的X射线相比，更安全更实用，用户和操作者均无需佩戴防护措施，系统安装简单使用方便。The imager uses the way of terahertz beam reflection imaging. Terahertz belongs to low-intensity electromagnetic radiation that is harmless to the human body. It has no ionizing radiation and will not cause damage to substances. Compared with X-rays in the prior art, it is more Safer and more practical, users and operators do not need to wear protective measures, and the system is easy to install and easy to use.
该成像仪还利用了太赫兹辐射波长较短容易穿透的特点。太赫兹能以很小的衰减穿透如陶瓷、脂肪、碳板、布料、塑料等，还可无损穿透墙壁、沙尘烟雾，使得其能在某些特殊领域发挥作用。如该成像仪可直接发射太赫兹波透过墙壁，由警察在室外对室内进行观测，也可以在车站、机场、会场等场所对人员进行快速移动式安检。所以该成像仪填补了红外夜视仪不能透视成像的弱点同时有有效规避了X射线有害的电离辐射。The imager also takes advantage of the fact that terahertz radiation has a relatively short wavelength and is easily penetrated. Terahertz can penetrate ceramics, fat, carbon plates, cloth, plastics, etc. with very little attenuation, and can also penetrate walls, dust and smoke without damage, making it able to play a role in some special fields. For example, the imager can directly emit terahertz waves through the wall, and the police can observe the indoors outdoors, and it can also conduct rapid mobile security checks on personnel in stations, airports, conference venues and other places. Therefore, the imager fills the weakness of the infrared night vision device that cannot see through imaging, and at the same time effectively avoids the harmful ionizing radiation of X-rays.
具体的，在所述检测区域可以设置一组或者多组所述太赫兹光源2照射目标以提高太赫兹探测器4的灵敏度，在所述检测区域太赫兹探测器4灵敏度得到大幅提升后可以不再设置所述太赫兹光源照射目标。Specifically, one or more groups of the terahertz light source 2 can be set in the detection area to illuminate the target to improve the sensitivity of the terahertz detector 4. After the sensitivity of the terahertz detector 4 in the detection area is greatly improved, it is not necessary to Then set the terahertz light source to illuminate the target.
一种优选的实施方式中，在所述检测区域设置一组或者多组太赫兹物镜3和太赫兹探测器4进行单独探测或者组合探测。In a preferred embodiment, one or more sets of terahertz objective lenses 3 and terahertz detectors 4 are arranged in the detection area for individual detection or combined detection.
一种具体的实施方式中，太赫兹探测器4主要采用的非制冷太赫兹焦平面探测器，其核心敏感材料主要采用氧化钒或者多晶硅或者CMOS等其他材料。In a specific implementation manner, the terahertz detector 4 mainly uses an uncooled terahertz focal plane detector, and its core sensitive material mainly uses other materials such as vanadium oxide, polysilicon, or CMOS.
另一种具体的实施方式中，太赫兹探测器4采用制冷型太赫兹焦平面探测器来实现高灵敏度探测。In another specific implementation manner, the terahertz detector 4 adopts a cooled terahertz focal plane detector to achieve high-sensitivity detection.
具体的，太赫兹探测器阵列像素规格有640x480，384x288等多种。可根据视场大小需要来设计阵列的大小。Specifically, the pixel specifications of the terahertz detector array are 640x480, 384x288 and so on. The size of the array can be designed according to the size of the field of view.
上述各具体的实施方式中，太赫兹头盔式成像仪还包括电源模块，所述电源模块向所述太赫兹头盔式成像仪供电。In each of the above specific implementation manners, the terahertz helmet-mounted imager further includes a power module, and the power supply module supplies power to the terahertz helmet-mounted imager.
太赫兹头盔式成像仪采用可见光目镜放大从而获得人眼适宜观察的可见光图像。同时，该太赫兹头盔式成像仪采用显示器取代目镜从而获得人眼适宜观察的图像。The terahertz helmet-mounted imager uses visible light eyepieces to magnify to obtain visible light images suitable for human eyes. At the same time, the terahertz helmet-mounted imager uses a display instead of an eyepiece to obtain images suitable for human eyes.
具体的，太赫兹头盔式成像仪采用一组或者两组目镜7从而实现单筒或者双筒人眼观察。Specifically, the terahertz helmet-mounted imager uses one or two sets of eyepieces 7 to realize single- or binocular human eye observation.
具体的，太赫兹光源前期由于体积或功耗原因可以不集成在太赫兹头盔式成像仪上而采用独立供电方式单独携带；随着技术的成熟太赫兹光源的体积和功耗在满足要求的情况下可以再和太赫兹头盔式成像仪做一体化集成。Specifically, the terahertz light source may not be integrated on the terahertz helmet-mounted imager due to its volume or power consumption in the early stage, but can be carried separately with an independent power supply; as the technology matures, the size and power consumption of the terahertz light source can meet the requirements. Next, it can be integrated with the terahertz helmet-mounted imager.
可以理解的是，以上实施方式仅仅是为了说明本发明的原理而采用的示例性实施方式，然而本发明并不局限于此。对于本领域内的普通技术人员而言，在不脱离本发明的精神和实质的情况下，可以做出各种变型和改进，这些变型和改进也视为本发明的保护范围。It can be understood that, the above embodiments are only exemplary embodiments adopted for illustrating the principle of the present invention, but the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also regarded as the protection scope of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810044768.7ACN108303709A (en) | 2018-01-17 | 2018-01-17 | A kind of Terahertz helmet-type imager |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810044768.7ACN108303709A (en) | 2018-01-17 | 2018-01-17 | A kind of Terahertz helmet-type imager |
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| CN108303709Atrue CN108303709A (en) | 2018-07-20 |
| Application Number | Title | Priority Date | Filing Date |
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| CN201810044768.7APendingCN108303709A (en) | 2018-01-17 | 2018-01-17 | A kind of Terahertz helmet-type imager |
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| CN (1) | CN108303709A (en) |
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| RJ01 | Rejection of invention patent application after publication | Application publication date:20180720 |