WO2021142997A1 - 一种接收透镜、 tof 同轴雷达激光收发系统结构及产品 - Google Patents

一种接收透镜、 tof 同轴雷达激光收发系统结构及产品 Download PDF

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WO2021142997A1
WO2021142997A1 PCT/CN2020/091763 CN2020091763W WO2021142997A1 WO 2021142997 A1 WO2021142997 A1 WO 2021142997A1 CN 2020091763 W CN2020091763 W CN 2020091763W WO 2021142997 A1 WO2021142997 A1 WO 2021142997A1
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Prior art keywords
receiving
lens
tof
lens body
system structure
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PCT/CN2020/091763
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English (en)
French (fr)
Inventor
余金榜
王品
句鹏
赖文峰
李志佳
王东宇
涂再买
张家利
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深圳玩智商科技有限公司
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Publication of WO2021142997A1 publication Critical patent/WO2021142997A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/481—Constructional features, e.g. arrangements of optical elements
    • G01S7/4811—Constructional features, e.g. arrangements of optical elements common to transmitter and receiver
    • G01S7/4812—Constructional features, e.g. arrangements of optical elements common to transmitter and receiver transmitted and received beams following a coaxial path

Definitions

  • the invention relates to the technical field of laser radar, and more specifically, to a receiving lens, TOF coaxial radar laser transceiver system structure and products.
  • the traditional coaxial lidar adopts the method of refracting the transmitting light path through a mirror, and then refracting it back through the mirror to hit the receiving lens or the receiving sensor.
  • This method has a complicated structure and requires high parts processing accuracy. Inform the production The process is complicated, the debugging cycle is long, and other shortcomings.
  • There is also a pseudo-coaxial method that is, the transmitting light path and the receiving light path are parallel, but the center of the light path is not on the same axis. Although this method uses the light emission and the diffuse reflection of the target object, the receiving system can capture , But after all, it is not completely coaxial, there is a part of light loss, and the optical path is not concentric in the future. When the target is too close to the radar, such as 20cm, the received light at this time may be too little, and the receiving system may not be able to capture the signal.
  • the technical problem to be solved by the present invention is to provide a receiving lens in view of the above-mentioned defects of the prior art; also provide a TOF coaxial radar laser transceiver system structure, a sensing product and a radar.
  • a receiving lens is constructed, including a lens body, wherein the lens body is a convex lens, and a light-receiving surface is provided with an axial hole for installing a light-emitting tube.
  • the receiving lens of the present invention wherein the axis hole penetrates the lens body.
  • the receiving lens of the present invention wherein the receiving lens is flat.
  • a TOF coaxial radar laser transceiver system structure which includes a lens body, and also includes a light emitting tube, a transmitting circuit, and a receiving circuit matched with the lens body; the light emitting tube is installed in the lens body. In the axial hole of the lens body.
  • the axial hole penetrates the lens body, and the transmitting circuit is arranged on the rear side of the lens body.
  • a dark room is provided between the lens body and the receiving circuit.
  • the front end of the light emitting tube is provided with an emitting diaphragm.
  • the TOF coaxial radar laser transceiving system structure of the present invention wherein the TOF coaxial radar laser transceiving system structure further includes a mechanism support for installing the lens body and the receiving circuit.
  • An induction product according to the above-mentioned receiving lens, wherein the lens body is provided on the induction product.
  • the beneficial effect of the present invention is that the use of the receiving lens of the present application can make the laser emitting and receiving optical paths completely coaxial, and the emitting optical path directly illuminates the target, and then directly enters the lens body after being reflected, and condenses the light to the receiving sensor.
  • the light path is changed by the reflective lens, so that the transmission and reception of the light path are the most direct and effective, the structure is simple, the assembly is convenient, and the detection distance of the finished product is long.
  • FIG. 1 is a schematic diagram of the structure of a receiving lens according to a preferred embodiment of the present invention
  • Figure 2 is a rear side view of the receiving lens of the preferred embodiment of the present invention.
  • FIG. 3 is a cross-sectional view of the receiving lens of the preferred embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of the TOF coaxial radar laser transceiver system structure according to a preferred embodiment of the present invention.
  • FIG. 5 is a schematic diagram of the structure of the TOF coaxial radar laser transceiver system of the preferred embodiment of the present invention after the dark room and the transmitting aperture are hidden;
  • Fig. 6 is a rear side view of a hidden dark room with the TOF coaxial radar laser transceiver system structure of the preferred embodiment of the present invention.
  • the receiving lens of the preferred embodiment of the present invention includes a lens body 1.
  • the lens body 1 is a convex lens, and the light receiving side is provided with an axis hole 10 for installing a light emitting tube.
  • the use of the receiving lens 1 of the present application can make the laser emitting and receiving optical paths completely coaxial, and the emitting optical path directly illuminates the target, and then directly enters the lens body 1 after being reflected back, and condenses the light to the receiving sensor, without the need for reflection lens conversion Optical path, so that the transmission and reception of the optical path are the most direct, the most effective, the structure is simple, the assembly is convenient, and the detection distance of the finished product is long.
  • the axial hole penetrates the lens body to facilitate the installation of the transmitting circuit; of course, the assembly can be completed without the axial hole penetrated, but it is relatively complicated.
  • This transformation method also belongs to the protection scope of the present application.
  • the receiving lens is flat, adopts a flat design, and has a compact structure, which greatly reduces the height of the radar machine, and makes the laser radar suitable for other multi-functional products.
  • the lens adopts a non-full-circumferential size design; of course, other forms of convex lenses and light-concentrating forms similar to convex lenses can also be used, and this transformation method also belongs to the protection scope of the present application.
  • a TOF coaxial radar laser transceiver system structure According to the above-mentioned receiving lens, as shown in Fig. 4 and referring to Figs. 5 and 6 at the same time, it includes a lens body 1, and also includes a light emitting tube 2, a transmitting circuit 3, and a lens body 1 Cooperating receiving circuit 4;
  • the light emitting tube 2 is installed in the axial hole 10 of the lens body 1; the laser emitting and receiving light paths are completely coaxial, and the emitting light path directly illuminates the target, and then directly enters the lens body 1 after being reflected.
  • the sensor target center 40 on the receiving circuit 4 and the lens body 1 are coaxially arranged, and the receiving circuit can be equivalently replaced with a receiving sensor, etc.
  • This transformation method also belongs to the protection scope of the present application.
  • the shaft hole 10 penetrates the lens body 1, and the emission circuit 3 is arranged on the rear side of the lens body 1; it is convenient to assemble; preferably, the light emission tube is welded to the emission circuit.
  • a dark room 5 is provided between the lens body 1 and the receiving circuit 4 to create a dark light space to prevent external stray light from affecting the receiving light path.
  • an emission aperture 6 is provided at the front end of the light emission tube 2 to play a role of blocking the emission astigmatism.
  • the structure of the TOF coaxial radar laser transceiver system further includes a mechanism support 7 for mounting the lens body 1 and the receiving circuit 4; the mechanism support 7 can be set in various shapes such as a board or a box as required;
  • the darkroom 5 is installed on the mechanism support 7.
  • a sensing product according to the above-mentioned receiving lens, wherein the sensing product is provided with a lens body; this type of sensing product is not limited to radar, but also includes various light sensors based on the principle of light reflection and receiving processing and analysis of reflected light, Detector and so on.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Optical Radar Systems And Details Thereof (AREA)

Abstract

一种接收透镜，包括透镜本体（1），透镜本体（1）为凸透镜，且接收光线的一面开设有安装光线发射管的轴心孔（10）；采用接收透镜，能够使得激光发射和接收光路完全同轴，并且发射光路直接照到目标物，反射回来后直接进入透镜本体（1），聚光到接收传感器，不需要通过反射镜片变换光路，从而使光路发射和接收都是最直接，最有效，结构简单，装配方便，成品探测距离远。

Description

一种接收透镜、TOF同轴雷达激光收发系统结构及产品 技术领域
本发明涉及激光雷达技术领域，更具体地说，涉及一种接收透镜、TOF同轴雷达激光收发系统结构及产品。
 背景技术
传统的同轴激光雷达，采用的方式是将发射光路通过镜子折射出去，再通过镜子折射回来打到接收透镜上或者接收传感器上，此种方式结构复杂，对零件加工精度要求很高，通知生产工艺复杂，调试周期长，等缺点。还有一种方式为伪同轴方式，就是发射光路和接收光路平行，但是光路中心并不在一个轴心上，虽然此种方式利用了光发射后照到目标物漫反射后会使接收系统可以捕捉，但毕竟不是完全同轴，有一部分光损失，而且以后光路不同心，当目标物离雷达太近，比如20cm，此时接收到的光由于太少，可能接收系统捕捉不到信号。
 技术问题
本发明要解决的技术问题在于，针对现有技术的上述缺陷，提供一种接收透镜；还提供了一种TOF同轴雷达激光收发系统结构、一种感应产品以及一种雷达。
 技术解决方案
本发明解决其技术问题所采用的技术方案是：
构造一种接收透镜，包括透镜本体，其中，所述透镜本体为凸透镜，且接收光线的一面开设有安装光线发射管的轴心孔。
本发明所述的接收透镜，其中，所述轴心孔贯穿所述透镜本体。
本发明所述的接收透镜，其中，所述接收透镜呈扁形。
一种TOF同轴雷达激光收发系统结构，根据上述的接收透镜，其中，包括透镜本体，还包括光线发射管、发射电路和与所述透镜本体配合的接收电路；所述光线发射管安装在所述透镜本体的所述轴心孔内。
本发明所述的TOF同轴雷达激光收发系统结构，其中，所述轴心孔贯穿所述透镜本体，所述发射电路设置在所述透镜本体的后侧。
本发明所述的TOF同轴雷达激光收发系统结构，其中，所述透镜本体与所述接收电路之间设置有暗室。
本发明所述的TOF同轴雷达激光收发系统结构，其中，所述光线发射管前端设置有发射光阑。
本发明所述的TOF同轴雷达激光收发系统结构，其中，所述TOF同轴雷达激光收发系统结构还包括安装所述透镜本体和所述接收电路的机构支架。
一种感应产品，根据上述的接收透镜，其中，所述感应产品上设置有所述透镜本体。
一种雷达，根据上述的TOF同轴雷达激光收发系统结构，其中，所述雷达上设置有所述TOF同轴雷达激光收发系统结构。
 有益效果
本发明的有益效果在于：采用本申请的接收透镜，能够使得激光发射和接收光路完全同轴，并且发射光路直接照到目标物，反射回来后直接进入透镜本体，聚光到接收传感器，不需要通过反射镜片变换光路，从而使光路发射和接收都是最直接，最有效，结构简单，装配方便，成品探测距离远。
 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将结合附图及实施例对本发明作进一步说明，下面描述中的附图仅仅是本发明的部分实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他附图：
图1是本发明较佳实施例的接收透镜结构示意图；
图2是本发明较佳实施例的接收透镜后侧视图；
图3是本发明较佳实施例的接收透镜剖视图；
图4是本发明较佳实施例的TOF同轴雷达激光收发系统结构结构示意图；
图5是本发明较佳实施例的TOF同轴雷达激光收发系统结构隐藏暗室和发射光阑后结构示意图；
图6是本发明较佳实施例的TOF同轴雷达激光收发系统结构隐藏暗室的后侧视图。
 本发明的实施方式
具体实施方式
为了使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的技术方案进行清楚、完整的描述，显然，所描述的实施例是本发明的部分实施例，而不是全部实施例。基于本发明的实施例，本领域普通技术人员在没有付出创造性劳动的前提下所获得的所有其他实施例，都属于本发明的保护范围。
本发明较佳实施例的接收透镜，如图1所示，同时参阅图2-3，包括透镜本体1，透镜本体1为凸透镜，且接收光线的一面开设有安装光线发射管的轴心孔10；采用本申请的接收透镜1，能够使得激光发射和接收光路完全同轴，并且发射光路直接照到目标物，反射回来后直接进入透镜本体1，聚光到接收传感器，不需要通过反射镜片变换光路，从而使光路发射和接收都是最直接，最有效，结构简单，装配方便，成品探测距离远。
优选的，轴心孔贯穿透镜本体，便于发射电路的安装；当然，轴心孔不贯穿的情况下也能够完成装配，只是相对来说会复杂一些，该种变换方式同样属于本申请保护范围。
优选的，接收透镜呈扁形，采用扁平化设计，结构紧凑，极大程度降低了雷达整机高度，使记激光雷达适配其他多功能产品的领域更大。
优选的，透镜采用非全周尺寸设计；当然，还可以采用其他形式凸透镜和类似凸透镜的可聚光形式，该种变换方式同样属于本申请保护范围。
一种TOF同轴雷达激光收发系统结构，根据上述的接收透镜，如图4所示，同时参阅图5和图6，包括透镜本体1，还包括光线发射管2、发射电路3和与透镜本体1配合的接收电路4；光线发射管2安装在透镜本体1的轴心孔10内；使得激光发射和接收光路完全同轴，并且发射光路直接照到目标物，反射回来后直接进入透镜本体1，聚光到接收电路，不需要通过反射镜片变换光路，从而使光路发射和接收都是最直接，最有效，结构简单，装配方便，成品探测距离远；
优选的，接收电路4上的传感器靶标中心40和透镜本体1同轴设置，接收电路可等同的替换成接收传感器等，该种变换方式同样属于本申请保护范围。
优选的，轴心孔10贯穿透镜本体1，发射电路3设置在透镜本体1的后侧；方便进行装配；较佳的，将光线发射管焊接在发射电路上。
优选的，透镜本体1与接收电路4之间设置有暗室5；以制造一个暗光空间，防止外部杂散光对接收光路的影响。
优选的，光线发射管2前端设置有发射光阑6，以起到发射散光遮挡作用。
优选的，TOF同轴雷达激光收发系统结构还包括安装透镜本体1和接收电路4的机构支架7；机构支架7可以根据需要设置成板、盒等多种形状；
优选的，暗室5安装在机构支架7上。
一种感应产品，根据上述的接收透镜，其中，感应产品上设置有透镜本体；该类感应产品不仅限于雷达，还包括各种基于光线反射并对反射光进行接收处理分析原理的光线感应器、探测仪等等。
一种雷达，根据上述的TOF同轴雷达激光收发系统结构，其中，雷达上设置有TOF同轴雷达激光收发系统结构。
应当理解的是，对本领域普通技术人员来说，可以根据上述说明加以改进或变换，而所有这些改进和变换都应属于本发明所附权利要求的保护范围。

Claims (10)

  1. 一种接收透镜，包括透镜本体，其特征在于，所述透镜本体为凸透镜，且接收光线的一面开设有安装光线发射管的轴心孔。
  2. 根据权利要求1所述的接收透镜，其特征在于，所述轴心孔贯穿所述透镜本体。
  3. 根据权利要求1所述的接收透镜，其特征在于，所述接收透镜呈扁形。
  4. 一种TOF同轴雷达激光收发系统结构，根据权利要求1-3任一所述的接收透镜，其特征在于，包括透镜本体，还包括光线发射管、发射电路和与所述透镜本体配合的接收电路；所述光线发射管安装在所述透镜本体的所述轴心孔内。
  5. 根据权利要求4所述的TOF同轴雷达激光收发系统结构，其特征在于，所述轴心孔贯穿所述透镜本体，所述发射电路设置在所述透镜本体的后侧。
  6. 根据权利要求4或5所述的TOF同轴雷达激光收发系统结构，其特征在于，所述透镜本体与所述接收电路之间设置有暗室。
  7. 根据权利要求4或5所述的TOF同轴雷达激光收发系统结构，其特征在于，所述光线发射管前端设置有发射光阑。
  8. 根据权利要求4或5所述的TOF同轴雷达激光收发系统结构，其特征在于，所述TOF同轴雷达激光收发系统结构还包括安装所述透镜本体和所述接收电路的机构支架。
  9. 一种感应产品，根据权利要求1-3任一所述的接收透镜，其特征在于，所述感应产品上设置有所述透镜本体。
  10. 一种雷达，根据权利要求4-8任一所述的TOF同轴雷达激光收发系统结构，其特征在于，所述雷达上设置有所述TOF同轴雷达激光收发系统结构。
PCT/CN2020/091763 2020-01-15 2020-05-22 一种接收透镜、 tof 同轴雷达激光收发系统结构及产品 WO2021142997A1 (zh)

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CN111060894A (zh) * 2020-01-15 2020-04-24 深圳玩智商科技有限公司 一种接收透镜、tof同轴雷达激光收发系统结构及产品

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