技术领域technical field
本发明涉及应用光学技术领域，特别是涉及一种变焦眼镜及其焦距调节方法。The invention relates to the technical field of applied optics, in particular to zoom glasses and a focal length adjustment method thereof.
背景技术Background technique
目前市场上广泛应用的眼镜采用的是定焦距固定度数的镜片。但对于近视或者远视眼来说，过度用眼导致人眼视力也在日积月累中不断变化，这就要求人们要不断地更换眼镜，给生活工作带来很多麻烦。At present, the widely used glasses on the market use lenses with a fixed focal length and a fixed degree of power. However, for myopia or hyperopia, overuse of the eyes leads to the continuous change of human vision over time, which requires people to constantly change their glasses, which brings a lot of trouble to life and work.
为了保护好眼睛，不同种类的眼镜采用了不少新的技术方案，如：双层镜片里面可通过气阀充气或放气来改变镜片的焦距；主镜片架和活动镜片架上分别安装有镜片通过两镜片组合而变焦等等。其方案有一共同点就是眼镜在使用过程中每个镜片的焦距是一定的，或是变焦过程相对复杂拖沓，且不能及时根据眼睛的视力情况的改变而改变，不利于眼睛的健康与视力的保护。In order to protect the eyes, different types of glasses have adopted many new technical solutions, such as: the focal length of the lens can be changed by inflating or deflating the air valve in the double-layer lens; the main lens frame and the movable lens frame are respectively installed with lenses Zooming and so on by combining two lenses. The common point of the solutions is that the focal length of each lens is fixed during the use of the glasses, or the zooming process is relatively complex and protracted, and cannot be changed in time according to the changes in the eyesight conditions, which is not conducive to the health of the eyes and the protection of vision. .
因此，如何提供一种操作简单且能及时根据眼睛的视力情况的改变而准确调节镜片焦距的方法，是本领域技术人员亟待解决的技术问题。Therefore, how to provide a method that is easy to operate and can accurately adjust the focal length of the lens according to changes in the visual acuity of the eye is a technical problem to be solved urgently by those skilled in the art.
发明内容SUMMARY OF THE INVENTION
有鉴于此，本发明的目的在于提供一种变焦眼镜及其焦距调节方法，可以缩短调控时间，简化操作方法，及时根据眼睛的视力情况的改变而准确调节镜片焦距。其具体方案如下：In view of this, the purpose of the present invention is to provide a zoom glasses and a focal length adjustment method thereof, which can shorten the adjustment time, simplify the operation method, and accurately adjust the focal length of the lens according to the change of the visual acuity of the eyes in time. Its specific plan is as follows:
一种变焦眼镜，包括：镜架，与所述镜架连接的镜框，以及安装在所述镜框中的两个镜片；所述镜片为液晶变焦透镜；还包括：A zoom glasses, comprising: a frame, a frame connected with the frame, and two lenses mounted on the frame; the lenses are liquid crystal zoom lenses; further comprising:
集成在所述镜架内部的微型电源，以及与所述微型电源电性连接且设置在所述镜架与所述镜框连接处的视力表获取系统和镜片焦距调节系统；a micro power supply integrated in the frame, and an eye chart acquisition system and a lens focal length adjustment system electrically connected to the micro power supply and arranged at the connection between the frame and the frame;
所述微型电源，用于分别对所述视力表获取系统和所述镜片焦距调节系统提供电源；The micro power supply is used to respectively provide power to the eye chart acquisition system and the lens focal length adjustment system;
所述视力表获取系统，用于在平整墙面上进行投影，获取投影视力表，且经调节后使在投影距离下所述投影视力表上国际标准视力为1.0对应的E的投影高度与标准视力测试距离为5米时国际标准视力表上国际标准视力为1.0对应的E的高度互相对应；The eye chart acquisition system is used for projecting on a flat wall to obtain a projection eye chart, and after adjustment, the international standard visual acuity on the projection eye chart is the projection height and standard of E corresponding to 1.0 under the projection distance. When the visual acuity test distance is 5 meters, the height of E corresponding to the international standard visual acuity of 1.0 on the international standard visual acuity chart corresponds to each other;
所述镜片焦距调节系统，用于根据所述投影视力表，调节所述液晶变焦透镜的焦距，以使所述镜片的度数与用户的实际视力相匹配。The lens focal length adjustment system is used for adjusting the focal length of the liquid crystal zoom lens according to the projection vision chart, so that the degree of the lens matches the actual vision of the user.
优选地，在本发明实施例提供的上述变焦眼镜中，所述投影视力表获取系统包括用于提供激光光束的激光光源，设置在所述激光光束光路上且刻有正常视力范围的视力表的凸透镜，以及激光光源位置调节模块；Preferably, in the above-mentioned zoom glasses provided in the embodiment of the present invention, the projection vision chart acquisition system includes a laser light source for providing a laser beam, and the optical path of the laser beam is arranged on the optical path of the laser beam and is engraved with the vision chart of the normal vision range. Convex lens, and laser light source position adjustment module;
所述凸透镜，用于通过所述激光光束将刻有的视力表投影至所述凸透镜正前方的平整墙面上，获得所述投影视力表；The convex lens is used for projecting the engraved vision chart onto the flat wall directly in front of the convex lens through the laser beam to obtain the projected vision chart;
所述激光光源位置调节模块，用于确定所述激光光源与所述凸透镜之间的目标距离，并根据所述目标距离对所述激光光源的位置进行调节，以调节所述投影视力表上国际标准视力为1.0对应的E的投影高度，直至在投影距离下所述投影视力表上国际标准视力为1.0对应的E的投影高度与标准视力测试距离为5米时国际标准视力表上国际标准视力为1.0对应的E的高度互相对应。The laser light source position adjustment module is used to determine the target distance between the laser light source and the convex lens, and adjust the position of the laser light source according to the target distance, so as to adjust the international distance on the projection eye chart. The projection height of E corresponding to the standard visual acuity of 1.0, until the projection height of E corresponding to the international standard visual acuity of 1.0 on the projection visual chart under the projection distance and the international standard visual acuity on the international standard visual acuity chart when the standard visual acuity test distance is 5 meters The heights of E corresponding to 1.0 correspond to each other.
优选地，在本发明实施例提供的上述变焦眼镜中，所述激光光源位置调节模块包括处理芯片和带有刻度的激光光源位置调节旋钮；Preferably, in the above zoom glasses provided by the embodiment of the present invention, the laser light source position adjustment module includes a processing chip and a laser light source position adjustment knob with a scale;
所述处理芯片，用于根据所述凸透镜和所述投影视力表之间的实际距离d1，标准视力表上国际标准视力为1.0对应的E的标准高度7.27毫米，以及标准视力测试距离5米，计算出所述投影视力表上国际标准视力为1.0对应的E的目标高度L2，其中L2＝7.27×d1/5000，并采用已训练完成的径向基神经网络确定所述激光光源与所述凸透镜之间的目标距离d2，其中，以所述凸透镜和所述投影视力表之间的实际距离d1及所述目标高度L2组成所述径向基神经网络的输入矢量x＝[d1，L2]T，所述径向基神经网络的表达式为w1～w12均为已训练出来的常数，c1～c12为已训练出来的矢量，φ为径向基函数；The processing chip is used for, according to the actual distance d1 between the convex lens and the projection vision chart, the standard height of E corresponding to the international standard vision of 1.0 on the standard vision chart is 7.27 mm, and the standard vision test distance is 5 meters , calculate the target height L2 of E corresponding to the international standard visual acuity of 1.0 on the projection eye chart, where L2 =7.27×d1 /5000, and use the trained radial basis neural network to determine the laser light source The target distance d2 between the convex lens and the convex lens, wherein the actual distance d1 between the convex lens and the projection eye chart and the target height L2 form the input vector x of the radial basis neural network =[d1 , L2 ]T , the expression of the radial basis neural network is w1 to w12 are constants that have been trained, c1 to c12 are vectors that have been trained, and φ is the radial basis function;
所述激光光源位置调节旋钮，用于根据所述目标距离对所述激光光源的位置进行调节，以使所述投影视力表上国际标准视力为1.0对应的E的投影高度达到所述处理芯片计算出的目标高度。The laser light source position adjustment knob is used to adjust the position of the laser light source according to the target distance, so that the projection height of E corresponding to the international standard visual acuity of 1.0 on the projection eye chart can reach the calculation of the processing chip out target height.
优选地，在本发明实施例提供的上述变焦眼镜中，所述镜片变焦电路系统包括镜片变焦电路和用于调节所述镜片变焦电路的调节电路旋钮；Preferably, in the above zoom glasses provided by the embodiment of the present invention, the lens zoom circuit system includes a lens zoom circuit and an adjustment circuit knob for adjusting the lens zoom circuit;
所述镜片变焦电路，用于通过所述调节电路旋钮的调节，控制所述液晶变焦透镜的电压，以调节所述液晶变焦透镜的折射率和焦距，直至用户清晰看到所述投影视力表上用户所选择的目标国际标准视力值对应的那一行E的图形。The lens zoom circuit is used to control the voltage of the liquid crystal zoom lens through the adjustment of the adjustment circuit knob, so as to adjust the refractive index and focal length of the liquid crystal zoom lens, until the user can clearly see the projection eye chart The graph of the line E corresponding to the target international standard visual acuity value selected by the user.
优选地，在本发明实施例提供的上述变焦眼镜中，所述视力表获取系统和所述镜片焦距调节系统分别设置在所述镜架与所述镜框连接处的左、右两端。Preferably, in the above zoom glasses provided by the embodiment of the present invention, the eye chart acquisition system and the lens focal length adjustment system are respectively arranged at the left and right ends of the connection between the frame and the frame.
优选地，在本发明实施例提供的上述变焦眼镜中，所述微型电源具体设置在所述镜架的后端头。Preferably, in the above-mentioned zoom glasses provided by the embodiment of the present invention, the micro power supply is specifically arranged at the rear end of the glasses frame.
本发明实施例还提供了一种本发明实施例提供的上述变焦眼镜的焦距调节方法，包括：The embodiment of the present invention also provides a method for adjusting the focal length of the zoom glasses provided by the embodiment of the present invention, including:
微型电源分别对视力表获取系统和镜片焦距调节系统提供电源；The micro power supply provides power to the eye chart acquisition system and the lens focal length adjustment system respectively;
所述视力表获取系统在平整墙面上进行投影，获取投影视力表，且经调节后使在投影距离下所述投影视力表上国际标准视力为1.0对应的E的投影高度与标准视力测试距离为5米时国际标准视力表上国际标准视力为1.0对应的E的高度互相对应；The vision chart acquisition system projects on a flat wall to obtain a projection vision chart, and after adjustment, the international standard vision chart on the projection vision chart is the projection height of E corresponding to 1.0 and the standard vision test distance. When it is 5 meters, the height of E corresponding to the international standard visual acuity of 1.0 on the international standard visual acuity chart corresponds to each other;
所述焦距调节系统根据所述投影视力表，调节所述液晶变焦透镜的焦距，以使所述镜片的度数与用户的实际视力相匹配。The focal length adjustment system adjusts the focal length of the liquid crystal zoom lens according to the projection vision chart, so that the power of the lens matches the actual vision of the user.
优选地，在本发明实施例提供的上述变焦眼镜的焦距调节方法中，所述视力表获取系统在平整墙面上进行投影，获取投影视力表，且经调节后使在投影距离下所述投影视力表上国际标准视力为1.0对应的E的投影高度与标准视力测试距离为5米时国际标准视力表上国际标准视力为1.0对应的E的高度互相对应，具体包括：Preferably, in the above-mentioned focal length adjustment method for zoom glasses provided by the embodiment of the present invention, the eye chart acquisition system performs projection on a flat wall to obtain a projection eye chart, and after adjustment, the projection is made at the projection distance. The projection height of E corresponding to the international standard visual acuity of 1.0 on the visual acuity chart corresponds to the height of E corresponding to the international standard visual acuity of 1.0 on the international standard visual acuity test when the standard visual acuity test distance is 5 meters, including:
开启所述视力表获取系统中的激光光源，提供激光光束并射向所述视力表获取系统中的刻有正常视力范围的视力表的凸透镜；Turn on the laser light source in the eye chart acquisition system, provide a laser beam and shoot it towards the convex lens of the eye chart with the normal vision range in the eye chart acquisition system;
所述凸透镜通过所述激光光束将刻有的视力表投影至所述凸透镜正前方的平整墙面上获得所述投影视力表；The convex lens projects the engraved eye chart onto the flat wall directly in front of the convex lens through the laser beam to obtain the projected eye chart;
所述视力表获取系统中的激光光源位置调节模块确定所述激光光源与所述凸透镜之间的目标距离，并根据所述目标距离对所述激光光源的位置进行调节，直至所述投影视力表上国际标准视力为1.0对应的E的投影高度与标准视力测试距离为5米时国际标准视力表上国际标准视力为1.0对应的E的高度互相对应。The laser light source position adjustment module in the eye chart acquisition system determines the target distance between the laser light source and the convex lens, and adjusts the position of the laser light source according to the target distance until the projection eye chart The projection height of E corresponding to the international standard visual acuity of 1.0 corresponds to the height of E corresponding to the international standard visual acuity of 1.0 on the international standard visual acuity chart when the standard visual acuity test distance is 5 meters.
优选地，在本发明实施例提供的上述变焦眼镜的焦距调节方法中，所述视力表获取系统中的激光光源位置调节模块确定所述激光光源与所述凸透镜之间的目标距离，并根据所述目标距离对所述激光光源的位置进行调节，直至所述投影视力表上国际标准视力为1.0对应的E的投影高度与标准视力测试距离为5米时国际标准视力表上国际标准视力为1.0对应的E的高度互相对应，具体包括：Preferably, in the above-mentioned focal length adjustment method for zoom glasses provided by the embodiment of the present invention, the laser light source position adjustment module in the eye chart acquisition system determines the target distance between the laser light source and the convex lens, and determines the target distance between the laser light source and the convex lens according to the The target distance adjusts the position of the laser light source until the international standard visual acuity on the projection visual chart is 1.0 when the projection height of E corresponding to 1.0 and the standard visual acuity test distance are 5 meters, the international standard visual acuity on the international standard visual chart is 1.0 The heights of the corresponding E correspond to each other, including:
所述激光光源位置调节模块中的处理芯片根据所述凸透镜和所述投影视力表之间的实际距离，标准视力表上国际标准视力为1.0对应的E的标准高度7.27毫米，以及标准视力测试距离5米，计算出所述投影视力表上国际标准视力为1.0对应的E的目标高度L2，其中L2＝7.27×d1/5000，并采用已训练完成的径向基神经网络确定所述激光光源与所述凸透镜之间的目标距离d2，其中，以所述凸透镜和所述投影视力表之间的实际距离d1及所述目标高度L2组成所述径向基神经网络的输入矢量x＝[d1，L2]T，所述径向基神经网络的表达式为w1～w12均为已训练出来的常数，c1～c12为已训练出来的矢量，φ为径向基函数；The processing chip in the laser light source position adjustment module is based on the actual distance between the convex lens and the projection vision chart, the standard height of E corresponding to the international standard vision of 1.0 on the standard vision chart is 7.27 mm, and the standard vision test distance 5 meters, calculate the target height L2 of E corresponding to the international standard visual acuity of 1.0 on the projection eye chart, where L2 =7.27×d1 /5000, and use the trained radial basis neural network to determine the The target distance d2 between the laser light source and the convex lens, wherein the actual distance d1 between the convex lens and the projection eye chart and the target height L2 form the input of the radial basis neural network Vector x=[d1 , L2 ]T , the expression of the radial basis neural network is w1 to w12 are constants that have been trained, c1 to c12 are vectors that have been trained, and φ is the radial basis function;
所述激光光源位置调节模块中的激光光源位置调节旋钮根据所述目标距离对所述激光光源的位置进行调节，以使所述投影视力表上国际标准视力为1.0对应的E的投影高度达到所述处理芯片计算出的目标高度。The laser light source position adjustment knob in the laser light source position adjustment module adjusts the position of the laser light source according to the target distance, so that the projection height of E corresponding to the international standard visual acuity of 1.0 on the projection eye chart reaches the required height. The target height calculated by the processing chip.
本发明所提供的一种变焦眼镜及其焦距调节方法，包括：镜架，与镜架连接的镜框，以及在镜框中的两个镜片；镜片为液晶变焦透镜；还包括：集成在镜架内部用于提供电源的微型电源，以及与微型电源电性连接且设置在镜架与镜框连接处的视力表获取系统和镜片焦距调节系统；视力表获取系统在平整墙面上进行投影，获取投影视力表，且经调节后使在投影距离下所述投影视力表上国际标准视力为1.0对应的E的投影高度与标准视力测试距离为5米时国际标准视力表上国际标准视力为1.0对应的E的高度互相对应；镜片焦距调节系统根据投影视力表，调节液晶变焦透镜的焦距，以使镜片的度数与用户的实际视力相匹配。本发明通过投影获取投影视力表，经过镜片焦距调节系统实现液晶变焦透镜的变焦，并同时对用户佩戴调焦后镜片的视力进行实时测量，以使镜片的度数与用户的实际视力相匹配，调控时间短，操作方便，眼镜小型化，镜片透光率高。The zoom glasses and the focal length adjustment method provided by the present invention include: a frame, a frame connected with the frame, and two lenses in the frame; the lenses are liquid crystal zoom lenses; and further comprising: integrated in the frame A micro power supply for supplying power, and an eye chart acquisition system and a lens focal length adjustment system electrically connected to the micro power supply and arranged at the connection between the frame and the frame; the eye chart acquisition system is projected on a flat wall to obtain projected vision After adjustment, the international standard visual acuity on the international standard visual acuity chart is the E corresponding to 1.0 on the international standard visual acuity chart when the projection height of E corresponding to 1.0 and the standard visual acuity test distance are 5 meters on the projection visual chart under the projection distance. The heights of the lenses correspond to each other; the lens focal length adjustment system adjusts the focal length of the liquid crystal zoom lens according to the projection vision chart, so that the degree of the lens matches the user's actual vision. The invention obtains the projection vision chart through projection, realizes the zooming of the liquid crystal zoom lens through the lens focal length adjustment system, and simultaneously measures the visual acuity of the user wearing the lens after focusing in real time, so that the degree of the lens matches the actual visual acuity of the user, and adjusts the The time is short, the operation is convenient, the glasses are miniaturized, and the lens transmittance is high.
附图说明Description of drawings
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，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的实施例，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，还可以根据提供的附图获得其他的附图。In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to the provided drawings without creative work.
图1为本发明实施例提供的变焦眼镜的结构示意图；1 is a schematic structural diagram of zoom glasses provided by an embodiment of the present invention;
图2为本发明实施例提供的视力表获取系统的原理示意图；2 is a schematic diagram of the principle of an eye chart acquisition system provided by an embodiment of the present invention;
图3为本发明实施例提供的变焦眼镜的焦距调节方法流程图。FIG. 3 is a flowchart of a method for adjusting the focal length of zoom glasses according to an embodiment of the present invention.
具体实施方式Detailed ways
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
本发明提供一种变焦眼镜，如图1所示，包括：镜架1，与镜架1连接的镜框2，以及安装在镜框2中的两个镜片3；镜片3为液晶变焦透镜；还包括：The present invention provides zoom glasses, as shown in FIG. 1 , comprising: a frame 1, a frame 2 connected to the frame 1, and two lenses 3 installed in the frame 2; the lenses 3 are liquid crystal zoom lenses; :
集成在镜架1内部的微型电源4，以及与微型电源4电性连接且设置在镜架1与镜框2连接处的视力表获取系统和镜片焦距调节系统；a micro power supply 4 integrated in the frame 1, and an eye chart acquisition system and a lens focal length adjustment system electrically connected to the micro power supply 4 and arranged at the connection between the frame 1 and the frame 2;
微型电源4，用于分别对视力表获取系统和镜片焦距调节系统提供电源；The micro power supply 4 is used to respectively provide power to the eye chart acquisition system and the lens focal length adjustment system;
视力表获取系统，用于在平整墙面上进行投影，获取投影视力表，且经调节后使在投影距离下投影视力表上国际标准视力为1.0对应的E的投影高度与标准视力测试距离为5米时国际标准视力表上国际标准视力为1.0对应的E的高度相互对应(具有等效视力测试效果)；The eye chart acquisition system is used to project on a flat wall to obtain a projection eye chart, and after adjustment, the projection height of E corresponding to the international standard visual acuity of 1.0 on the projection eye chart under the projection distance and the standard visual acuity test distance are At 5 meters, the height of E corresponding to the international standard visual acuity of 1.0 on the international standard visual acuity chart corresponds to each other (with equivalent visual acuity test effect);
镜片焦距调节系统，用于根据投影视力表，调节液晶变焦透镜的焦距，以使镜片的度数与用户的实际视力相匹配。The lens focal length adjustment system is used to adjust the focal length of the liquid crystal zoom lens according to the projection vision chart, so that the degree of the lens matches the actual vision of the user.
在本发明实施例提供的上述变焦眼镜中，通过投影获取投影视力表，经过镜片焦距调节系统实现液晶变焦透镜的变焦，并同时对用户佩戴调焦后镜片的视力进行测量，以使镜片的度数与用户的实际视力相匹配，调控时间短，操作方便，眼镜小型化，镜片透光率高，解决了用户眼睛近视或远视对生活带来的一些不便与麻烦，可以起到减少眼镜疲劳，改善眼镜健康的作用。In the above-mentioned zoom glasses provided by the embodiment of the present invention, the projection vision chart is obtained by projection, the zoom of the liquid crystal zoom lens is realized through the lens focal length adjustment system, and the user's vision after wearing the focus adjustment lens is measured at the same time, so that the degree of the lens can be adjusted. Matching with the user's actual vision, the adjustment time is short, the operation is convenient, the glasses are miniaturized, and the lens transmittance is high. The role of glasses in health.
具体地，在具体实施时，如图1所示，视力表获取系统和镜片焦距调节系统可以分别设置在镜架1与镜框2连接处的左、右两端，这样的设置不会影响视力表获取系统和镜片焦距调节系统的相互作用，便于操作。需要说明的是，镜架与镜框连接处可以是镜架前端头位置，也可以是镜框的左右两端，或者是镜架与镜框连接处的空间区域单独设置视力表获取系统和镜片焦距调节系统。Specifically, in the specific implementation, as shown in FIG. 1 , the eye chart acquisition system and the lens focal length adjustment system can be respectively arranged at the left and right ends of the connection between the frame 1 and the frame 2, and such settings will not affect the eye chart. The interaction between the acquisition system and the lens focal length adjustment system is easy to operate. It should be noted that the connection between the frame and the frame can be the position of the front end of the frame, the left and right ends of the frame, or the space area where the frame and the frame are connected. .
另外，具体地，在具体实施时，由于镜架的后端头一般较大，且无其他部件，如图1所示，微型电源4可以具体设置在镜架1的后端头，有利于眼镜小型化。In addition, in specific implementation, since the rear end of the spectacle frame is generally large and has no other components, as shown in FIG. miniaturization.
在具体实施时，在本发明实施例提供的上述变焦眼镜中，如图1和图2所示，投影视力表获取系统可以包括用于提供激光光束的激光光源5，设置在激光光束光路上且刻有正常视力范围的视力表01的凸透镜6，以及激光光源位置调节模块；In specific implementation, in the above-mentioned zoom glasses provided by the embodiments of the present invention, as shown in FIG. 1 and FIG. 2 , the projection eye chart acquisition system may include a laser light source 5 for providing a laser beam, which is arranged on the optical path of the laser beam and The convex lens 6 of the vision chart 01 with the normal vision range is engraved, and the laser light source position adjustment module;
凸透镜6，用于通过激光光束将刻有的视力表01投影至凸透镜6正前方的平整墙面02上，获得投影视力表03；The convex lens 6 is used to project the engraved eye chart 01 onto the flat wall 02 directly in front of the convex lens 6 through the laser beam to obtain the projected eye chart 03;
激光光源位置调节模块，用于确定激光光源5与凸透镜6之间的目标距离d2，并根据目标距离d2对激光光源5的位置进行调节，直至在投影距离下投影视力表03上国际标准视力为1.0对应的“E”04的投影高度为标准视力测试距离为5米时国际标准视力表上国际标准视力为1.0对应的“E”的高度互相对应。The laser light source position adjustment module is used to determine the target distance d2 between the laser light source 5 and the convex lens 6 , and adjust the position of the laser light source 5 according to the target distance d2 until the projection distance reaches the international standard on the vision chart 03 The projection height of "E" 04 corresponding to the visual acuity of 1.0 is the height of the "E" corresponding to the international standard visual acuity of 1.0 on the international standard visual acuity chart when the standard visual acuity test distance is 5 meters.
进一步地，在具体实施时，在本发明实施例提供的上述变焦眼镜中，如图1和图2所示，激光光源位置调节模块包括处理芯片和带有刻度的激光光源位置调节旋钮7；Further, in the specific implementation, in the above-mentioned zoom glasses provided by the embodiment of the present invention, as shown in FIG. 1 and FIG. 2 , the laser light source position adjustment module includes a processing chip and a laser light source position adjustment knob 7 with a scale;
处理芯片，用于根据凸透镜6和投影视力表03之间的实际距离d1，标准视力表上国际标准视力为1.0对应的E的标准高度，以及标准视力测试距离，计算出投影视力表03上国际标准视力为1.0对应的“E”04的目标高度L2，还用于根据凸透镜6和投影视力表03之间的实际距离d1，以及计算出的目标高度L2，采用已训练完成的径向基神经网络确定激光光源5与凸透镜6之间的目标距离d2；The processing chip is used to calculate the distance d1 between the convex lens 6 and the projection vision chart 03 , the standard height of E corresponding to the international standard vision of 1.0 on the standard vision chart, and the standard vision test distance, to calculate the distance on the projection vision chart 03 The target height L2 of "E" 04 corresponding to the international standard visual acuity of 1.0 is also used according to the actual distance d1 between the convex lens 6 and the projection eye chart 03 , and the calculated target height L2 , using the training completed The radial basis neural network determines the target distance d2 between the laser light source 5 and the convex lens 6;
激光光源位置调节旋钮7，用于根据目标距离d2对激光光源5的位置进行调节，以使投影视力表03上国际标准视力为1.0对应的“E”04的投影高度达到处理芯片计算出的目标高度Ｌ２。The laser light source position adjustment knob 7 is used to adjust the position of the laser light source 5 according to the target distance d2 , so that the projection height of the “E” 04 corresponding to the international standard visual acuity of 1.0 on the projection eye chart 03 reaches the value calculated by the processing chip. Target height L2 .
优选地，目标距离d2计算出来后，激光光源位置调节系统上对应于d2的刻度将有亮点，用户手动调节激光光源位置调节旋钮7至亮点位置附近，即可实现投影视力表03上国际标准视力为1.0对应的“E”04的投影高度达到目标高度L2。Preferably, after the target distance d2 is calculated, there will be a bright spot on the scale corresponding to d2 on the laser light source position adjustment system. The user manually adjusts the laser light source position adjustment knob 7 to the vicinity of the bright spot position, and then the projection eye chart 03 can be achieved. The projected height of "E" 04 corresponding to the standard visual acuity of 1.0 reaches the target height L2 .
需要说明的是，如图1所示，投影视力表获取系统还可以包括激光光源开关8，用于控制激光光源5的开启或关闭。It should be noted that, as shown in FIG. 1 , the projection eye chart acquisition system may further include a laser light source switch 8 for controlling the on or off of the laser light source 5 .
另外，计算投影视力表03上国际标准视力为1.0对应的“E”04的目标高度Ｌ２的具体公式如下：In addition, the specific formula for calculating the target height L2 of "E" 04 corresponding to the international standard visual acuity of 1.0 on the projection vision chart 03 is as follows:
L2＝L×d1/dL2 =L×d1 /d
其中，d1表示凸透镜6和投影视力表03之间的实际距离；L表示标准视力表上国际标准视力为1.0对应的E的标准高度，L＝7.27mm；d表示标准视力测试距离，由于进行标准视力测试时，用户一般站在离标准视力表5米处的位置，因此d＝5m＝5000mm。此时L2＝7.27×d1/5000。Among them, d1 represents the actual distance between the convex lens 6 and the projection visual chart 03; L represents the standard height of E corresponding to the international standard visual acuity of 1.0 on the standard visual chart, L=7.27mm; d represents the standard visual acuity test distance. During the standard vision test, the user generally stands at a position 5 meters away from the standard vision chart, so d=5m=5000mm. At this time, L2 =7.27×d1 /5000.
采用已训练完成的径向基神经网络确定激光光源5与凸透镜6之间的目标距离d2，具体地确定一个输入矢量x＝[d1,L２］T；将输入矢量输入如下预设公式：Use the trained radial basis neural network to determine the target distance d2 between the laser light source 5 and the convex lens 6 , and specifically determine an input vector x=[d1 , L2 ]T ; input the input vector into the following preset formula :
其中，w1～w12均为已训练出来的常数，c1～c12为已训练出来的矢量，φ为径向基函数。Wherein, w1 to w12 are constants that have been trained, c1 to c12 are vectors that have been trained, and φ is a radial basis function.
在具体实施时，在本发明实施例提供的上述变焦眼镜中，如图1所示，镜片变焦电路系统包括镜片变焦电路9和用于调节镜片变焦电路9的调节电路旋钮10；During specific implementation, in the above-mentioned zoom glasses provided by the embodiment of the present invention, as shown in FIG. 1 , the lens zoom circuit system includes a lens zoom circuit 9 and an adjustment circuit knob 10 for adjusting the lens zoom circuit 9;
镜片变焦电路9，用于通过调节电路旋钮10的调节，控制液晶变焦透镜的电压，以调节液晶变焦透镜的折射率和焦距，直至用户清晰看到投影视力表上用户所选择的目标国际标准视力值r对应的那一行“E”的图形。The lens zoom circuit 9 is used to control the voltage of the liquid crystal zoom lens through the adjustment of the adjustment circuit knob 10 to adjust the refractive index and focal length of the liquid crystal zoom lens until the user can clearly see the target international standard vision selected by the user on the projection eye chart The graph of the row "E" corresponding to the value r.
需要说明的是，用户所选择的目标国际标准视力值可以在用户佩戴该变焦眼镜后，在转动调节电路旋钮之前，选定所要达到的目标国际标准视力r，r可以是0.9、1.0、1.1等具体国际标准视力。It should be noted that the target international standard visual acuity value selected by the user can be selected after the user wears the zoom glasses and before turning the adjustment circuit knob, and the target international standard visual acuity r to be achieved can be selected, and r can be 0.9, 1.0, 1.1, etc. Specific international standard visual acuity.
基于同一发明构思，本发明实施例还提供了一种本发明实施例提供的上述变焦眼镜的焦距调节方法，由于该方法解决问题的原理与前述一种变焦眼镜相似，因此该方法的实施可以参见变焦眼镜的实施，重复之处不再赘述。Based on the same inventive concept, the embodiment of the present invention also provides a method for adjusting the focal length of the zoom glasses provided by the embodiment of the present invention. The implementation of zoom glasses will not be repeated here.
在具体实施时，本发明实施例提供的变焦眼镜的焦距调节方法，如图3所示，具体包括以下步骤：During specific implementation, the focal length adjustment method for zoom glasses provided by the embodiment of the present invention, as shown in FIG. 3 , specifically includes the following steps:
S301，微型电源分别对视力表获取系统和镜片焦距调节系统提供电源；S301, the micro power supply provides power to the eye chart acquisition system and the lens focal length adjustment system respectively;
S302，视力表获取系统在平整墙面上进行投影，获取投影视力表，且经调节后使在投影距离下投影视力表上国际标准视力为1.0对应的E的投影高度与标准视力测试距离为5米时国际标准视力表上国际标准视力为1.0对应的E的高度互相对应；S302, the eye chart acquisition system projects on a flat wall to obtain a projection eye chart, and after adjustment, the projection height of E corresponding to the international standard vision chart on the projection vision chart is 1.0 and the standard vision test distance is 5 The height of E corresponding to the international standard visual acuity of 1.0 on the international standard visual acuity chart in meters corresponds to each other;
S303，镜片焦距调节系统根据投影视力表，调节液晶变焦透镜的焦距，以使镜片的度数与用户的实际视力相匹配。S303, the lens focal length adjustment system adjusts the focal length of the liquid crystal zoom lens according to the projection vision chart, so that the degree of the lens matches the actual vision of the user.
在本发明实施例提供的上述变焦眼镜的焦距调节方法中，可以经过视力表获取系统通过投影获取投影视力表，进而对视力进行实时测量，并经过镜片焦距调节系统实现液晶变焦透镜的变焦，这样可以及时根据眼睛的视力情况的改变而准确调节镜片焦距，并且调控时间短，操作方便，眼镜小型化，镜片透光率高。In the above-mentioned focal length adjustment method for zoom glasses provided by the embodiment of the present invention, the projection vision chart can be obtained through projection through the vision chart acquisition system, and then the vision can be measured in real time, and the zoom of the liquid crystal zoom lens can be realized through the lens focal length adjustment system. The focal length of the lens can be accurately adjusted in time according to the change of the visual acuity of the eyes, and the adjustment time is short, the operation is convenient, the glasses are miniaturized, and the light transmittance of the lens is high.
在具体实施时，在本发明实施例提供的上述变焦眼镜的焦距调节方法中，步骤S302视力表获取系统在平整墙面上进行投影，获取投影视力表，且经调节后使在投影距离下投影视力表上国际标准视力为1.0对应的E的投影高度与标准视力测试距离为5米时国际标准视力表上国际标准视力为1.0对应的E的高度互相对应，具体可以包括以下步骤：In specific implementation, in the above-mentioned focal length adjustment method for zoom glasses provided by the embodiment of the present invention, in step S302, the eye chart acquisition system projects on a flat wall to obtain the projection eye chart, and after adjustment, the projection is made at the projection distance. The projection height of E corresponding to the international standard visual acuity of 1.0 on the visual acuity chart corresponds to the height of E corresponding to the international standard visual acuity of 1.0 on the international standard visual acuity test when the standard visual acuity test distance is 5 meters. Specifically, the following steps may be included:
首先，开启视力表获取系统中的激光光源，提供激光光束并射向视力表获取系统中的刻有正常视力范围的视力表的凸透镜；First, turn on the laser light source in the vision chart acquisition system, provide the laser beam and shoot it towards the convex lens of the vision chart with the normal vision range in the vision chart acquisition system;
然后，凸透镜通过激光光束将刻有的视力表投影至凸透镜正前方的平整墙面上获得投影视力表；Then, the convex lens projects the engraved eye chart onto the flat wall directly in front of the convex lens through the laser beam to obtain the projected eye chart;
最后，视力表获取系统中的激光光源位置调节模块确定激光光源与凸透镜之间的目标距离，并根据目标距离对激光光源的位置进行调节，直至投影视力表上国际标准视力为1.0对应的E的投影高度与标准视力测试距离为5米时国际标准视力表上国际标准视力为1.0对应的E的高度互相对应。Finally, the laser light source position adjustment module in the eye chart acquisition system determines the target distance between the laser light source and the convex lens, and adjusts the position of the laser light source according to the target distance until the international standard visual acuity on the projection eye chart is E corresponding to 1.0. The projection height corresponds to the height of E corresponding to the international standard visual acuity of 1.0 on the international standard visual acuity chart when the standard visual acuity test distance is 5 meters.
进一步地，在具体实施时，在本发明实施例提供的上述变焦眼镜的焦距调节方法中，上述视力表获取系统中的激光光源位置调节模块确定激光光源与凸透镜之间的目标距离，并根据目标距离对激光光源的位置进行调节，直至投影视力表上国际标准视力为1.0对应的E的投影高度与标准视力测试距离为5米时国际标准视力表上国际标准视力为1.0对应的E的高度互相对应，具体可以包括：Further, in the specific implementation, in the focal length adjustment method of the above-mentioned zoom glasses provided by the embodiment of the present invention, the laser light source position adjustment module in the above-mentioned eye chart acquisition system determines the target distance between the laser light source and the convex lens, and according to the target distance. Adjust the position of the laser light source until the projection height of E corresponding to the international standard visual acuity of 1.0 on the projection visual chart and the height of E corresponding to the international standard visual acuity of 1.0 on the international standard visual acuity chart when the standard visual acuity test distance is 5 meters Correspondingly, it can specifically include:
激光光源位置调节模块中的处理芯片根据凸透镜和投影视力表之间的实际距离，标准视力表上国际标准视力为1.0对应的E的标准高度7.27毫米，以及标准视力测试距离5米，计算出所述投影视力表上国际标准视力为1.0对应的E的目标高度L2，其中L2＝7.27×d1/5000，并采用已训练完成的径向基神经网络确定所述激光光源与所述凸透镜之间的目标距离d2，其中，以所述凸透镜和所述投影视力表之间的实际距离d1及所述目标高度L2组成所述径向基神经网络的输入矢量x＝[d1,L2]T，所述径向基神经网络的表达式为w1～w12均为已训练出来的常数，c1～c12为已训练出来的矢量，φ为径向基函数；The processing chip in the laser light source position adjustment module calculates the actual distance between the convex lens and the projection vision chart, the standard height of E corresponding to the international standard vision of 1.0 on the standard vision chart, and the standard vision test distance of 5 meters. The target height L2 of E corresponding to the international standard visual acuity of 1.0 on the projection eye chart, where L2 =7.27×d1 /5000, and the trained radial basis neural network is used to determine the laser light source and the convex lens The target distance d2 between, wherein the actual distance d1 between the convex lens and the projection eye chart and the target height L2 form the input vector of the radial basis neural network x=[d1 , L2 ]T , the expression of the radial basis neural network is w1 to w12 are constants that have been trained, c1 to c12 are vectors that have been trained, and φ is the radial basis function;
所述激光光源位置调节模块中的激光光源位置调节旋钮根据所述目标距离对所述激光光源的位置进行调节，以使所述投影视力表上国际标准视力为1.0对应的E的投影高度达到所述处理芯片计算出的目标高度。The laser light source position adjustment knob in the laser light source position adjustment module adjusts the position of the laser light source according to the target distance, so that the projection height of E corresponding to the international standard visual acuity of 1.0 on the projection eye chart reaches the required height. The target height calculated by the processing chip.
上述关于对计算目标高度和目标距离的实施，可以参见变焦眼镜的实施，重复之处不再赘述。For the implementation of the above-mentioned calculation of the target height and the target distance, reference may be made to the implementation of the zoom glasses, and the repetition will not be repeated.
下面以一个具体的例子并结合图1和图2来详细描述下本发明实施例提供的上述变焦眼镜的焦距调节方法，具体步骤如下：The focal length adjustment method of the above-mentioned zoom glasses provided by the embodiment of the present invention is described in detail below with a specific example in conjunction with FIG. 1 and FIG. 2 , and the specific steps are as follows:
步骤一、微型电源提供电源；Step 1. Micro power supply provides power;
步骤二、开启激光光源开关8，激光光源5发出激光光束射向刻有正常视力范围的视力表01的凸透镜6；Step 2, turn on the laser light source switch 8, and the laser light source 5 emits a laser beam to the convex lens 6 of the vision chart 01 engraved with the normal vision range;
步骤三、激光光束将凸透镜6上刻着的视力表01投影至凸透镜6正前方距离为d1的平整墙面02上，在平整墙面02上获得投影视力表03，可以使用长度测量工具测量出d1的实际距离，根据公式L2＝7.27×d1/5000计算出投影视力表03上国际标准视力为1.0那一行中“E”04的目标高度L2；Step 3, the laser beam projects the vision chart 01 engraved on the convex lens 6 onto the flat wall 02 with a distance of d1 in front of the convex lens 6, and obtains the projection vision chart 03 on the flat wall 02, which can be measured using a length measuring tool Get the actual distance of d1 , according to the formula L2 =7.27×d1 /5000, calculate the target height L2 of “E” 04 in the row of the international standard visual acuity of 1.0 on the projection vision chart 03;
步骤四、采用已训练完成的径向基神经网络计算出激光光源5与凸透镜6的目标距离d2；Step 4, using the trained radial basis neural network to calculate the target distance d2 between the laser light source 5 and the convex lens 6;
优选地，根据投影视力表03与凸透镜6的实际距离d1及目标高度L2确定一个输入矢量x＝[d1,L2]T；将输入矢量x输入预设公式Preferably, an input vector x=[d1 , L2 ]T is determined according to the actual distance d1 between the projection eye chart 03 and the convex lens 6 and the target height L2 ; input the input vector x into the preset formula
其中，w1～w12均为已训练出来的常数，c1～c12为已训练出来的矢量，φ为径向基函数；Among them, w1 to w12 are constants that have been trained, c1 to c12 are vectors that have been trained, and φ is the radial basis function;
步骤五、目标距离d2计算出来后，激光光源位置调节系统上对应于d2的刻度将有亮点，用户手动调节激光光源位置调节旋钮7至亮点位置附近，从而使激光光源5与凸透镜6的实际距离达到目标距离d2，即可实现投影视力表03上国际标准视力为1.0对应的“E”04的投影高度达到目标高度L2；Step 5. After the target distance d2 is calculated, there will be a bright spot on the scale corresponding to d2 on the laser light source position adjustment system. When the actual distance reaches the target distance d2 , the projection height of "E" 04 corresponding to the international standard visual acuity of 1.0 on the projection eye chart 03 can reach the target height L2 ;
步骤六、用户选定佩戴变焦眼镜后所要达到的目标国际标准视力r；Step 6. The user selects the target international standard vision r to be achieved after wearing the zoom glasses;
步骤七、通过调节电路旋钮10来调节镜片变焦电路9，调节实际输入液晶变焦透镜的电压，从而调节液晶变焦透镜的折射率，进而调节液晶变焦透镜的焦距，直至投影到前方平整墙面02上的投影视力表03中国际标准视力为r的那一行“E”能清晰看见。Step 7. Adjust the lens zoom circuit 9 by adjusting the circuit knob 10, adjust the voltage actually input to the liquid crystal zoom lens, thereby adjusting the refractive index of the liquid crystal zoom lens, and then adjust the focal length of the liquid crystal zoom lens, until the projection onto the front flat wall 02 The line "E" with the international standard visual acuity r in the projection eye chart 03 can be clearly seen.
经过上述步骤一至步骤七可以完成本发明实施例提供的上述变焦眼镜的焦距调节方法。The method for adjusting the focal length of the zoom glasses provided by the embodiment of the present invention can be completed through the above steps 1 to 7.
本发明实施例提供的一种变焦眼镜及其焦距调节方法，包括：镜架，与镜架连接的镜框，以及在镜框中的两个镜片；镜片为液晶变焦透镜；还包括：集成在镜架内部用于提供电源的微型电源，以及与微型电源电性连接且设置在镜架与镜框连接处的视力表获取系统和镜片焦距调节系统；视力表获取系统在平整墙面上进行投影，获取投影视力表，且经调节后使在投影距离下投影视力表上国际标准视力为1.0对应的E的投影高度与测试距离为5米时国际标准视力表上国际标准视力为1.0对应的E的高度相互对应；镜片焦距调节系统根据投影视力表，调节液晶变焦透镜的焦距，以使镜片的度数与用户的实际视力相匹配。本发明通过投影获取投影视力表，经过镜片焦距调节系统实现液晶变焦透镜的变焦，并同时对用户佩戴调焦后镜片的视力进行实时测量，以使镜片的度数与用户的实际视力相匹配，调控时间短，操作方便，眼镜小型化，镜片透光率高。An embodiment of the present invention provides zoom glasses and a method for adjusting the focal length thereof, including: a frame, a frame connected to the frame, and two lenses in the frame; the lenses are liquid crystal zoom lenses; further comprising: integrated in the frame The internal micro power supply is used to provide power, and the eye chart acquisition system and the lens focal length adjustment system are electrically connected to the micro power supply and arranged at the connection between the frame and the frame; the eye chart acquisition system is projected on a flat wall to obtain the projection. Vision chart, and adjusted so that the projection height of E corresponding to the international standard vision chart on the projection vision chart at the projection distance is 1.0 and the height of E corresponding to the international standard vision chart of 1.0 when the test distance is 5 meters. Correspondingly; the lens focal length adjustment system adjusts the focal length of the liquid crystal zoom lens according to the projection vision chart, so that the degree of the lens matches the actual vision of the user. The invention obtains the projection vision chart through projection, realizes the zooming of the liquid crystal zoom lens through the lens focal length adjustment system, and simultaneously measures the visual acuity of the user wearing the lens after focusing in real time, so that the degree of the lens matches the actual visual acuity of the user, and adjusts the The time is short, the operation is convenient, the glasses are miniaturized, and the lens transmittance is high.
最后，还需要说明的是，在本文中，关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。Finally, it should also be noted that in this document, relational terms are only used to distinguish one entity or operation from another, and do not necessarily require or imply any such actual existence between these entities or operations. relationship or order. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.
以上对本发明所提供的变焦眼镜及其焦距调节方法进行了详细介绍，本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想；同时，对于本领域的一般技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本发明的限制。The zoom glasses and the focal length adjustment method provided by the present invention have been introduced in detail above. In this paper, specific examples are used to illustrate the principles and implementations of the present invention. The descriptions of the above embodiments are only used to help understand the method of the present invention. and its core idea; at the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in the specific implementation and application scope. To sum up, the contents of this specification should not be construed as a limits.
| Application Number | Priority Date | Filing Date | Title |
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| CN201711227020.2ACN107991792B (en) | 2017-11-29 | 2017-11-29 | A kind of zoom glasses and focal length adjustment method thereof |
| Application Number | Priority Date | Filing Date | Title |
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| CN201711227020.2ACN107991792B (en) | 2017-11-29 | 2017-11-29 | A kind of zoom glasses and focal length adjustment method thereof |
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| CN201711227020.2AExpired - Fee RelatedCN107991792B (en) | 2017-11-29 | 2017-11-29 | A kind of zoom glasses and focal length adjustment method thereof |
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