CN115615334A - Method for measuring parameters of contact lenses - Google Patents
Method for measuring parameters of contact lensesDownload PDFInfo
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- CN115615334A CN115615334ACN202211192839.0ACN202211192839ACN115615334ACN 115615334 ACN115615334 ACN 115615334ACN 202211192839 ACN202211192839 ACN 202211192839ACN 115615334 ACN115615334 ACN 115615334A
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- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/08—Measuring arrangements characterised by the use of optical techniques for measuring diameters
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
- G01B11/2433—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures for measuring outlines by shadow casting
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
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Abstract
Translated fromChinese
Description
Translated fromChinese本申请是申请日为2020年12月15日、申请号为2020114733747、发明名称为测量接触镜的参数的方法的专利申请的分案申请。This application is a divisional application of a patent application with an application date of December 15, 2020, an application number of 2020114733747, and an invention title of a method for measuring parameters of contact lenses.
技术领域technical field
本公开涉及一种接触镜的参数的测量方法。The present disclosure relates to a method for measuring parameters of a contact lens.
背景技术Background technique
接触镜是一种直接戴在眼睛表面的镜片，例如角膜镜、巩膜镜等，其中接触镜的弧区角度、直径等参数可以直接影响接触镜配戴效果及视力安全，因此接触镜参数的测量对于评价接触镜产品质量至关重要。A contact lens is a lens that is worn directly on the surface of the eye, such as a corneal lens, a scleral lens, etc. The parameters such as the arc angle and diameter of the contact lens can directly affect the wearing effect of the contact lens and the safety of vision. Therefore, the measurement of contact lens parameters It is essential for evaluating the quality of contact lens products.
目前，接触镜参数的测量方式一般采用直接投影，比如标准ISO18369-3-2017中规定的测量方式，而接触镜各个弧区的参数则通常使用光学相干断层扫描仪(OCT)来进行测量，然而光学相干断层扫描仪容易受到光线、声音等因素的干扰，造成测量结果准确性较低。At present, the measurement method of contact lens parameters generally adopts direct projection, such as the measurement method specified in the standard ISO18369-3-2017, and the parameters of each arc area of contact lens are usually measured by optical coherence tomography (OCT). However, Optical coherence tomography is susceptible to interference from light, sound and other factors, resulting in low accuracy of measurement results.
另外，接触镜的自身结构也可以影响光学相干断层扫描仪测量的准确性，例如巩膜镜的矢深和边缘的厚度会比普通角膜镜更大，容易导致测量出来的数据误差较大，超过标准规定的允差范围。In addition, the structure of the contact lens itself can also affect the accuracy of the optical coherence tomography scanner. For example, the sagittal depth and edge thickness of the scleral lens will be larger than that of the ordinary corneal lens, which will easily lead to large errors in the measured data, exceeding the standard specified tolerance range.
发明内容Contents of the invention
本公开有鉴于上述现有状况，其目的在于提供一种能够提高测量准确性的测量接触镜的参数的方法。In view of the above existing situation, the present disclosure aims to provide a method for measuring parameters of a contact lens capable of improving measurement accuracy.
为此，本公开提供了一种测量接触镜的参数的方法，其包括：准备固化成型材料并使用所述固化成型材料对所述接触镜进行成型并固化，形成包含所述接触镜的内镜面的轮廓且固化成型的镜片模型；将所述镜片模型与所述接触镜分离，并切割所述镜片模型形成至少一个待测模型，所述镜片模型具有匹配所述内镜面的外表面，所述外表面被形成光滑的表面；并且使用测量仪测量所述至少一个待测模型，并根据所述至少一个待测模型的测量结果获得所述镜片模型的参数，从而得到与所述镜片模型对应的所述接触镜的参数，在测量所述待测模型的过程中，所述测量仪采集所述待测模型的图像并对所述图像进行测量分析以获得所述测量结果。在本公开中，利用固化成型材料获得与接触镜对应的镜片模型，再对镜片模型进行切割并测量以获得接触镜的参数，在这种情况下，通过测量固化的镜片模型能够获得准确的镜片模型的参数，从而能够获得准确的接触镜的参数。To this end, the present disclosure provides a method for measuring parameters of a contact lens, which includes: preparing a cured molding material and molding and curing the contact lens using the cured molding material to form an endoscope comprising the contact lens and solidifying the molded lens model; separating the lens model from the contact lens, and cutting the lens model to form at least one model to be tested, the lens model having an outer surface matching the inner mirror surface, The outer surface is formed into a smooth surface; and using a measuring instrument to measure the at least one model to be tested, and obtain the parameters of the lens model according to the measurement results of the at least one model to be tested, so as to obtain the parameters of the lens model Corresponding to the parameters of the contact lens, during the process of measuring the model to be tested, the measuring instrument collects an image of the model to be tested and performs measurement and analysis on the image to obtain the measurement result. In the present disclosure, the lens model corresponding to the contact lens is obtained by curing the molding material, and then the lens model is cut and measured to obtain the parameters of the contact lens. In this case, an accurate lens can be obtained by measuring the cured lens model The parameters of the model, so that the accurate parameters of the contact lens can be obtained.
另外，在本公开所涉及的方法中，可选地，在分离所述镜片模型与所述接触镜前，对所述接触镜进行标记以在所形成的镜片模型形成与所述接触镜的矢深相关的记号。由此，能够形成带记号的镜片模型。In addition, in the method involved in the present disclosure, optionally, before the lens model is separated from the contact lens, the contact lens is marked so as to form an arrow with the contact lens on the formed lens model. Deeply related tokens. Thus, a marked lens model can be formed.
另外，在本公开所涉及的方法中，可选地，在对所述接触镜进行成型的过程中，将所述固化成型材料填充于所述接触镜的呈凹状的内镜面并覆盖所述接触镜的边缘，以形成所述镜片模型。由此，能够获得与接触接的内镜面相匹配的镜片模型。In addition, in the method involved in the present disclosure, optionally, during the process of molding the contact lens, the cured molding material is filled into the concave inner mirror surface of the contact lens and covers the Contact the edge of the lens to form the lens model. Thus, a lens model matching the contacted inner mirror surface can be obtained.
另外，在本公开所涉及的方法中，可选地，在对所述接触镜进行成型的过程中，将所述接触镜的内镜面朝上放置。由此，能够便于对接触镜的内镜面进行成型。In addition, in the method involved in the present disclosure, optionally, during the molding process of the contact lens, the inner mirror of the contact lens is placed upward. Thus, it is possible to facilitate molding of the inner mirror surface of the contact lens.
另外，在本公开所涉及的方法中，可选地，在将所述固化成型材料填充于所述接触镜时，所述固化成型材料从中心向边缘以螺旋的形式注入所述接触镜的内镜面。由此，能够减少填充接触镜的过程中的气泡的产生。In addition, in the method involved in the present disclosure, optionally, when filling the cured molding material into the contact lens, the cured molding material is injected into the contact lens in a spiral form from the center to the edge. mirror surface. Accordingly, generation of air bubbles during filling of the contact lens can be reduced.
另外，在本公开所涉及的方法中，可选地，在固化成型过程中，填充有所述固化成型材料的所述接触镜以所述内镜面朝下的方式放置。由此，能够减少固化成型过程中发生变形的情况发生。In addition, in the method involved in the present disclosure, optionally, during the curing molding process, the contact lens filled with the curing molding material is placed with the inner mirror facing downward. Thus, it is possible to reduce the occurrence of deformation during curing and molding.
另外，在本公开所涉及的方法中，可选地，所述固化成型材料为印模材料，所述印模材料为硅橡胶印模材料、聚硫橡胶印模材料、聚醚橡胶印模材料、琼脂胶体印模材料、印模石膏或氧化锌丁香油糊膏。由此，能够对接触镜进行成型。In addition, in the method involved in the present disclosure, optionally, the cured molding material is an impression material, and the impression material is a silicone rubber impression material, a polysulfide rubber impression material, or a polyether rubber impression material , agar colloid impression material, impression plaster or zinc oxide clove oil paste. Thereby, the contact lens can be molded.
另外，在本公开所涉及的方法中，可选地，在测量所述待测模型的过程中，将所述待测模型的切割面置于所述测量仪的载物台以进行测量。由此，能够有利于测量待测模型的表面的参数。In addition, in the method involved in the present disclosure, optionally, during the process of measuring the model to be measured, the cut surface of the model to be measured is placed on the stage of the measuring instrument for measurement. Thereby, it can be beneficial to measure the parameters of the surface of the model to be measured.
另外，在本公开所涉及的方法中，可选地，所述接触镜为具有多个弧区的角膜接触镜、角膜塑形镜或巩膜接触镜，所述参数包括所述多个弧区的角度和直径。由此，能够测量多种接触镜的多个弧区的角度和直径。In addition, in the method involved in the present disclosure, optionally, the contact lens is a corneal contact lens, an orthokeratology lens or a scleral contact lens with multiple arcs, and the parameters include the parameters of the multiple arcs. angle and diameter. Thus, angles and diameters of multiple arcuate regions of various contact lenses can be measured.
另外，在本公开所涉及的方法中，可选地，所述测量仪为体视显微镜或高精度投影仪，所述高精度投影仪为具有测量软件或内置XY计数器、测角仪和数码显示器的投影设备。由此，能够利用投影法进行测量。In addition, in the method involved in the present disclosure, optionally, the measuring instrument is a stereo microscope or a high-precision projector, and the high-precision projector has measurement software or a built-in XY counter, a goniometer and a digital display projection equipment. Thereby, measurement can be performed by the projection method.
根据本公开，能够提供一种能够提高测量准确性的测量接触镜的参数的方法。According to the present disclosure, it is possible to provide a method of measuring a parameter of a contact lens capable of improving measurement accuracy.
附图说明Description of drawings
现在将仅通过参考附图的例子进一步详细地解释本公开的实施例，其中：Embodiments of the present disclosure will now be explained in further detail by way of example only with reference to the accompanying drawings, in which:
图1是示出了本公开的示例所涉及的测量接触镜的参数的方法的流程图。FIG. 1 is a flowchart illustrating a method of measuring parameters of a contact lens according to an example of the present disclosure.
图2是示出了本公开的示例所涉及的镜片模型固化成型的场景示意图。FIG. 2 is a schematic diagram showing a scene of solidification and molding of a lens model involved in an example of the present disclosure.
图3是示出了本公开的示例所涉及的镜片模型的结构示意图。FIG. 3 is a schematic diagram showing the structure of a lens model related to an example of the present disclosure.
图4是示出了本公开的示例所涉及的巩膜接触镜的结构示意图。Fig. 4 is a schematic diagram showing the structure of a scleral contact lens according to an example of the present disclosure.
图5是示出了本公开的示例所涉及的待测模型的结构示意图。FIG. 5 is a schematic diagram illustrating the structure of a model to be tested involved in an example of the present disclosure.
图6是示出了本公开的示例所涉及的待测模型测量的场景示意图。FIG. 6 is a schematic diagram of a scene illustrating measurement of a model to be tested involved in an example of the present disclosure.
图7是示出了图6中的待测模型的放大示意图。FIG. 7 is an enlarged schematic view showing the model to be tested in FIG. 6 .
具体实施方式detailed description
本公开引用的所有参考文献全文引入作为参考，如同完全阐述的那样。除非另有定义，本公开所使用的技术和科学术语具有与本公开所属领域的普通技术人员通常理解相同的含义。All references cited in this disclosure are incorporated by reference in their entirety as if fully set forth. Unless defined otherwise, technical and scientific terms used in this disclosure have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.
以下，参考附图详细地说明本公开的优选实施方式。在下面的说明中，对于相同的部件赋予相同的符号，省略重复的说明。另外，附图只是示意性的图，部件相互之间的尺寸的比例或者部件的形状等可以与实际的不同。Hereinafter, preferred embodiments of the present disclosure will be described in detail with reference to the drawings. In the following description, the same reference numerals are given to the same components, and repeated descriptions are omitted. In addition, the drawings are only schematic diagrams, and the ratio of dimensions between components, the shape of components, and the like may be different from the actual ones.
在本公开中，测量接触镜S的参数的方法可以简称为测量方法。另外，本公开所涉及的测量接触镜S的参数的方法可以包括准备镜片模型2并测量镜片模型2的参数以获得接触镜S的参数。In the present disclosure, a method of measuring a parameter of the contact lens S may be simply referred to as a measurement method. In addition, the method for measuring the parameters of the contact lens S according to the present disclosure may include preparing the lens model 2 and measuring the parameters of the lens model 2 to obtain the parameters of the contact lens S.
在本公开中，接触镜S可以具有内镜面S1和外镜面S2(参见图1)。其中，接触镜S的内镜面S1可以呈凹状，外镜面S2可以呈凸状。另外，本公开所涉及的测量方法可以测量接触镜S的内镜面S1的参数。In the present disclosure, the contact lens S may have an inner mirror surface S1 and an outer mirror surface S2 (see FIG. 1 ). Wherein, the inner mirror surface S1 of the contact lens S may be concave, and the outer mirror surface S2 may be convex. In addition, the measurement method according to the present disclosure can measure the parameters of the inner mirror surface S1 of the contact lens S.
在一些示例中，测量接触镜S的参数的方法可以包括准备镜片模型2；并且测量镜片模型2的参数以获得接触镜S的参数。In some examples, a method of measuring a parameter of a contact lens S may include preparing a lens model 2; and measuring a parameter of the lens model 2 to obtain a parameter of the contact lens S.
在一些示例中，测量接触镜S的参数的方法可以包括准备固化成型材料1并使用固化成型材料1对接触镜S进行成型以形成镜片模型2。In some examples, the method of measuring a parameter of a contact lens S may include preparing a cured molding material 1 and molding the contact lens S using the cured molding material 1 to form a lens model 2 .
图1是示出了本公开的示例所涉及的测量接触镜S的参数的方法的流程图。FIG. 1 is a flowchart illustrating a method of measuring parameters of a contact lens S according to an example of the present disclosure.
在本实施方式中，如图1所示，测量接触镜S的参数的方法可以包括准备固化成型材料1并使用固化成型材料1对接触镜S进行成型并固化，形成包含接触镜S的内镜面S1的轮廓且固化成型的镜片模型2(步骤S10)。In this embodiment, as shown in FIG. 1 , the method for measuring the parameters of the contact lens S may include preparing a cured molding material 1 and using the cured molding material 1 to mold and cure the contact lens S to form an endoscope containing the contact lens S The outline of the surface S1 and the molded lens model 2 are solidified (step S10).
在一些示例中，在步骤S10中，可以将接触镜S置于平面上。在另一些示例中，在步骤S10中，在对接触镜S进行成型的过程中，可以将接触镜S的内镜面S1朝上放置。由此，能够便于对接触镜S的内镜面S1进行成型。另外，可以在15至25℃的室温下对接触镜S进行成型以形成镜片模型2。In some examples, in step S10, the contact lens S may be placed on a flat surface. In some other examples, in step S10 , during the molding process of the contact lens S, the inner mirror surface S1 of the contact lens S may be placed upward. Thus, molding of the inner mirror surface S1 of the contact lens S can be facilitated. Alternatively, the contact lens S may be molded at a room temperature of 15 to 25° C. to form the lens model 2 .
在一些示例中，在步骤S10中，可以利用隐形眼镜吸棒吸附接触镜S的外镜面S1再对接触镜S进行成型。In some examples, in step S10 , the outer mirror surface S1 of the contact lens S may be sucked by a contact lens suction rod, and then the contact lens S may be molded.
在一些示例中，如上所述，步骤S10可以包括准备固化成型材料1。另外，在一些示例中，固化成型材料1可以为印模材料。由此，能够对接触镜S进行成型，能够有利于快速形成形态稳定的镜片模型2。In some examples, as mentioned above, step S10 may include preparing the molding material 1 for curing. Additionally, in some examples, the cured molding material 1 may be an impression material. Thereby, the contact lens S can be molded, and it is advantageous to rapidly form the lens model 2 with a stable shape.
在一些示例中，印模材料可以包括基质和催化剂。另外，在一些示例中，在步骤S10中，可以通过混合基质和催化剂来获得印模材料。也就是说，可以通过混合基质和催化剂来获得固化成型材料1。In some examples, an impression material can include a matrix and a catalyst. In addition, in some examples, in step S10, an impression material may be obtained by mixing a matrix and a catalyst. That is, the cured molding material 1 can be obtained by mixing the matrix and the catalyst.
在一些示例中，在步骤S10中，可以通过更改基质和催化剂的比例来调整固化时间。在另一些示例中，在步骤S10中，固化时间可以为1至3min。例如，固化时间可以为1min、1.2min、1.5min、1.8min、2min、2.5min或3min。另外，通过调整基质和催化剂的比例可以镜片模型2的硬度。例如，基质和催化剂的比例可以为1︰1。由此，能够获得硬度适宜的镜片模型2。In some examples, in step S10, the curing time can be adjusted by changing the ratio of the matrix and the catalyst. In other examples, in step S10, the curing time may be 1 to 3 minutes. For example, the curing time can be 1 min, 1.2 min, 1.5 min, 1.8 min, 2 min, 2.5 min or 3 min. In addition, the hardness of the lens model 2 can be adjusted by adjusting the ratio of the matrix and the catalyst. For example, the ratio of substrate to catalyst can be 1:1. Thereby, the lens model 2 with suitable hardness can be obtained.
在一些示例中，印模材料可以为硅橡胶印模材料、聚硫橡胶印模材料、聚醚橡胶印模材料、琼脂胶体印模材料、印模石膏或氧化锌丁香油糊膏。In some examples, the impression material can be a silicone rubber impression material, polysulfide rubber impression material, polyether rubber impression material, agar gel impression material, impression plaster, or zinc oxide clove oil paste.
在一些示例中，可以将固化成型材料1注入接触镜S的内镜面S1以对接触镜S进行成型形成镜片模型2。In some examples, the cured molding material 1 may be injected into the inner mirror surface S1 of the contact lens S to mold the contact lens S to form the lens model 2 .
在一些示例中，在步骤S10中，在将固化成型材料1填充于接触镜S时，固化成型材料1可以从中心向边缘以螺旋的形式注入接触镜S的内镜面S1。由此，能够减少填充接触镜S(内镜面S1)的过程中的气泡的产生。也就要说，可以从接触镜S的中间开始注入，然后绕圈往外注入。In some examples, in step S10 , when filling the contact lens S with the cured molding material 1 , the cured molding material 1 may be injected into the inner mirror surface S1 of the contact lens S in a spiral form from the center to the edge. Accordingly, it is possible to reduce the generation of air bubbles in the process of filling the contact lens S (inner mirror surface S1 ). That is to say, the injection can be started from the middle of the contact lens S, and then injected around the circle.
在一些示例中，在步骤S10中，可以从接触镜S的中间开始注入，然后绕圈往外注入固化成型材料1并且同时旋转接触镜S。另外，固化成型材料1绕圈的方向可以与接触镜S旋转的方向不同(例如，方向相反)。In some examples, in step S10 , the injection can be started from the middle of the contact lens S, and then the cured molding material 1 can be injected outward in a circle while rotating the contact lens S at the same time. In addition, the direction in which the solidified molding material 1 turns around may be different from the direction in which the contact lens S rotates (eg, in the opposite direction).
在一些示例中，在将固化成型材料1填充于接触镜S时，可以以匀速注入固化成型材料1。由此，能够有利于减少气泡的产生。In some examples, when filling the contact lens S with the cured molding material 1 , the cured molding material 1 may be injected at a constant speed. Thereby, generation of air bubbles can be advantageously reduced.
在一些示例中，在步骤S10中，可以朝向接触镜S的中心进行固化成型材料1的注入。由此，能够有利于固化成型材料1注入过程中接触镜S的固定。另外，在注入固化成型材料1的过程中，可以通过隐形眼镜吸棒固定接触镜S。In some examples, in step S10 , the injection of the cured molding material 1 may be performed toward the center of the contact lens S. Referring to FIG. Thereby, the fixation of the contact lens S during the injection of the cured molding material 1 can be facilitated. In addition, during the process of injecting and curing the molding material 1 , the contact lens S can be fixed by a contact lens suction rod.
图2是示出了本公开的示例所涉及的镜片模型2固化成型的场景示意图。FIG. 2 is a schematic diagram showing the curing and molding scene of the lens model 2 involved in the example of the present disclosure.
具体而言，在对接触镜S进行成型的过程中，可以将固化成型材料1填充于接触镜S的呈凹状的内镜面S1并覆盖接触镜S的边缘，以形成镜片模型2。由此，能够获得与接触接的内镜面S1相匹配的镜片模型2。另外，在一些示例中，如图2所示，固化成型材料1可以溢出接触镜S的边缘。Specifically, during the molding process of the contact lens S, the cured molding material 1 can be filled in the concave inner mirror surface S1 of the contact lens S and cover the edge of the contact lens S to form the lens model 2 . As a result, the lens model 2 matching the contacted inner mirror surface S1 can be obtained. Additionally, in some examples, the cured molding material 1 may overflow the edge of the contact lens S, as shown in FIG. 2 .
在一些示例中，在步骤S10中，可以将填满固化成型材料1的接触镜S倒置在平滑的表面(例如玻璃、金属或塑料的表面)上固化成型。也就是说，在固化成型过程中，填充有固化成型材料1的接触镜S以内镜面S1朝下的方式放置(参见图2)。由此，能够减少固化成型过程中发生变形的情况发生。In some examples, in step S10 , the contact lens S filled with the cured molding material 1 may be turned upside down on a smooth surface (such as a surface of glass, metal or plastic) for curing and molding. That is, during the curing molding process, the contact lens S filled with the curing molding material 1 is placed with the inner mirror surface S1 facing downward (see FIG. 2 ). Thus, it is possible to reduce the occurrence of deformation during curing and molding.
在一些示例中，在步骤S10中，可以包括去除多余的固化成型材料1以形成镜片模型2。在另一些示例中，可以沿着接触镜S的边缘除去多余的固化成型材料1。另外，可以利用刀片去除多余的固化成型材料1。比如，可以利用刀片切除多余的固化成型材料1。In some examples, in step S10 , it may include removing excess cured molding material 1 to form the lens model 2 . In other examples, excess cured molding material 1 may be removed along the edges of the contact lens S. In addition, excess cured molding material 1 can be removed with a blade. For example, a blade can be used to cut off excess cured molding material 1 .
在一些示例中，在步骤S10中，可以通过手或其他工具固定填充有固化成型材料1的接触镜S并去除多余的固化成型材料1。在另一些示例中，去除多余的固化成型材料1的过程中，接触镜S的内镜面S1可以朝下。另外，去除多余的固化成型材料1的过程中，填充有固化成型材料1的接触镜S可以与放置的平面垂直。In some examples, in step S10 , the contact lens S filled with the cured molding material 1 may be fixed by hand or other tools, and excess cured molding material 1 may be removed. In some other examples, during the process of removing excess cured molding material 1 , the inner mirror surface S1 of the contact lens S may face downward. In addition, during the process of removing excess cured molding material 1 , the contact lens S filled with cured molding material 1 may be perpendicular to the plane on which it is placed.
图3是示出了本公开的示例所涉及的镜片模型2的结构示意图。FIG. 3 is a schematic diagram showing the structure of the lens model 2 according to the example of the present disclosure.
在一些示例中，在步骤S10中，如图3所示，镜片模型2可以具有外表面21和底部22。另外，外表面21可以形成为光滑的表面。此外，镜片模型2的底部22可以与外表面21相交(参见图3)。In some examples, in step S10 , as shown in FIG. 3 , the lens model 2 may have an
在一些示例中，镜片模型2的外表面21可以与接触镜S的内镜面S1相匹配。也就是说，镜片模型2可以具有匹配内镜面S1的外表面21。在这种情况下，通过对镜片模型2的外表面21进行测量以获得外表面21的表面形貌，从而能够通过该表面形貌获得接触镜S的内镜面S1的参数，例如几何参数。In some examples, the
在一些示例中，镜片模型2的外表面21可以形成为镜片模型2的轮廓。在一些示例中，接触镜S的镜片模型2可以具有与接触镜S的内镜面S1相匹配的轮廓。换言之，镜片模型2可以拓印接触镜S的内镜面S1的轮廓。在这种情况下，通过对镜片模型2的轮廓进行测量，能够获得接触镜S的内镜面S1的参数。In some examples, the
在一些示例中，如上所述，镜片模型2可以具有与接触镜S的内镜面S1的弧形(即内镜面S1的轮廓)相同的轮廓。具体而言，镜片模型2可以由固化成型材料1填充接触镜S的内镜面S1并固化而形成，因而镜片模型2可以形成有与接触镜S的内镜面S1具有相同轮廓的外表面21。换言之，镜片模型2可以具有与接触镜S的内镜面S1的参数匹配的外表面21(参见图3)。在这种情况下，通过对镜片模型2的外表面21测量能够获得接触镜S的内镜面S1的参数。也就是说，镜片模型2的外表面21的参数可以与接触镜S的内镜面S1的参数一致。另外，镜片模型2的参数可以是指镜片模型2的外表面21的参数。In some examples, the lens model 2 may have the same profile as the arc of the inner mirror surface S1 of the contact lens S (ie, the profile of the inner mirror surface S1 ), as described above. Specifically, the lens model 2 can be formed by filling the inner mirror surface S1 of the contact lens S with the cured molding material 1 and curing it, so that the lens model 2 can be formed with an
在一些示例中，在步骤S10中，镜片模型2可以具有记号。另外，在一些示例中，镜片模型2的记号可以与接触镜S相对应。例如，镜片模型2的记号可以与接触镜S的中轴线相对应、镜片模型2的记号可以与接触镜S的轴向相对应等。In some examples, in step S10, the lens model 2 may have markings. Additionally, the indicia of lens model 2 may correspond to contact lens S in some examples. For example, the mark of the lens model 2 may correspond to the central axis of the contact lens S, the mark of the lens model 2 may correspond to the axial direction of the contact lens S, and so on.
在一些示例中，在步骤S10中，可以使用标记工具对镜片模型2进行标记。例如，可以使用笔、刀片、牙签等标记工具在镜片模型2上进行标记以形成记号。In some examples, in step S10, the lens model 2 may be marked with a marking tool. For example, marking tools such as pens, blades, and toothpicks can be used to mark on the lens model 2 to form marks.
在另一些示例中，镜片模型2可以具有与接触镜S的矢深相关的记号。由此，能够有利于对环曲面镜片(带有散光的接触镜S)的测量。例如，镜片模型2可以具有与接触镜S的双矢深轴位相对应的双矢深轴位记号。此外，镜片模型2的记号可以依据接触镜S具体的结构、设计等进行标记。In other examples, the lens model 2 may have indicia associated with the sagittal depth of the contact lens S. Thereby, the measurement of the toric lens (contact lens S with astigmatism) can be facilitated. For example, lens model 2 may have bi-sagittal deep-axis indicia corresponding to the bi-sagittal deep-axis position of contact lens S. In addition, the marks of the lens model 2 can be marked according to the specific structure and design of the contact lens S.
在一些示例中，在步骤S10中，在分离镜片模型2与接触镜S前(比如，去除多余的固化成型材料1后)，可以对镜片模型2进行标记以形成记号。由此，能够形成带记号的镜片模型2。例如，在分离镜片模型2与接触镜S前，可以对镜片模型2进行标记以在形成与接触镜S的矢深相关的记号。In some examples, in step S10 , before separating the lens model 2 from the contact lens S (for example, after removing excess cured molding material 1 ), the lens model 2 may be marked to form a mark. Thus, the marked lens model 2 can be formed. For example, before separating the lens model 2 from the contact lens S, the lens model 2 may be marked to form a mark related to the sagittal depth of the contact lens S.
在另一些示例中，在步骤S10中，可以在对接触镜S进行成型中进行标记，以在所形成的镜片模型2形成与接触镜S的矢深相关的记号。In other examples, in step S10 , marking may be performed during molding of the contact lens S, so as to form a mark related to the sagittal depth of the contact lens S on the formed lens model 2 .
在一些示例中，在步骤S10中，固化成型材料1固化形成的镜片模型2可以是稳定、不易变形的。In some examples, in step S10 , the lens model 2 formed by curing the molding material 1 may be stable and not easily deformed.
在一些示例中，在步骤S10中，接触镜S可以为具有多个弧区。在另一些示例中，接触镜S的内镜面S1可以为具有多个弧区。另外，在本实施方式中，可以对接触镜S的一个或多个弧区进行测量。In some examples, in step S10, the contact lens S may have multiple arcs. In some other examples, the inner mirror surface S1 of the contact lens S may have multiple arcs. In addition, in this embodiment, one or more arcuate regions of the contact lens S can be measured.
在一些示例中，镜片模型2的外表面21可以具有与接触镜S的多个弧区分别匹配的多个轮廓区。换言之，镜片模型2可以具有与接触镜S的多个弧区相匹配的多个轮廓区。In some examples, the
如上所述，接触镜S可以具有多个弧区，内镜面S1可以具有多个弧区。在一些示例中，镜片模型2可以具有与接触镜S的多个弧区分别匹配的多个轮廓区。换言之，镜片模型2可以具有与接触镜S的多个弧区一致的多个轮廓区。此外，镜片模型2的多个轮廓区可以形成于镜片模型2的外表面21上。As mentioned above, the contact lens S may have multiple arcs, and the inner mirror S1 may have multiple arcs. In some examples, the lens model 2 may have a plurality of contour areas that match the plurality of arcuate areas of the contact lens S, respectively. In other words, the lens model 2 may have contoured regions that coincide with the curved regions of the contact lens S. Furthermore, a plurality of outline regions of the lens model 2 may be formed on the
在一些示例中，接触镜S可以为角膜接触镜、角膜塑形镜或巩膜接触镜。在另一些示例中，接触镜S可以为具有多个弧区的角膜接触镜、角膜塑形镜或巩膜接触镜。由此，能够测量多种接触接的多个弧区的参数。In some examples, contact lens S can be a contact lens, an orthokeratology lens, or a scleral contact lens. In other examples, contact lens S may be a contact lens with multiple arcs, an orthokeratology lens, or a scleral contact lens. Thus, it is possible to measure parameters of multiple arc regions of various contact joints.
在一些示例中，接触镜S的参数可以包括多个弧区的角度和直径。由此，能够测量接触接的多个弧区的角度和直径。也就是说，接触镜S的参数可以包括内镜面S1的多个弧区的角度和直径。In some examples, the parameters of contact lens S may include angles and diameters of the plurality of arcs. Thereby, angles and diameters of multiple arcs of the contact joint can be measured. That is to say, the parameters of the contact lens S may include the angles and diameters of the multiple arcs of the inner mirror surface S1.
在一些示例中，接触镜S中各个弧区的直径可以是指各个弧区的最外边缘的直径，其中，最外边缘可以是指弧区中最远离接触镜S中央的边缘。在一些示例中，接触镜S中各个弧区的角度可以是指各个弧区分别与各个弧区的直径(或接触镜S的直径)所形成的夹角的角度。In some examples, the diameter of each arc in the contact lens S may refer to the diameter of the outermost edge of each arc, wherein the outermost edge may refer to the edge of the arc that is farthest from the center of the contact lens S. In some examples, the angle of each arc in the contact lens S may refer to the angle formed by each arc and the diameter of each arc (or the diameter of the contact lens S).
图4是示出了本公开的示例所涉及的巩膜接触镜3的结构示意图。FIG. 4 is a schematic diagram showing the structure of a scleral contact lens 3 according to an example of the present disclosure.
在一些示例中，接触镜S可以是具有光学区3a、中周充盈区3b和角膜缘充盈区3c的巩膜接触镜3(参见图1)。也即巩膜接触镜3的内表面31可以具有分别与光学区3a、中周充盈区3b和角膜缘充盈区3c相应的三个弧区。由此，能够测量巩膜接触镜3的光学区3a、中周充盈区3b和角膜缘充盈区3c的内表面的参数。。In some examples, the contact lens S can be a scleral contact lens 3 (see FIG. 1 ) having an
在如图4所示的示例中，巩膜接触镜3可以具有光学区3a、中周充盈区3b和角膜缘充盈区3c。巩膜接触镜3可以具有光学区3a、中周充盈区3b和角膜缘充盈区3c三个弧区。In the example shown in FIG. 4, the scleral contact lens 3 may have an
在一些示例中，如图4所示，光学区3a可以环绕中周充盈区3b，角膜缘充盈区3c可以环绕中周充盈区3b。In some examples, as shown in FIG. 4,
在一些示例中，如图4所示，中周充盈区3b的厚度可以大于光学区3a的厚度。另外，角膜缘充盈区3c的厚度可以大于光学区3a的厚度。在另一些示例中，巩膜接触镜3的厚度可以自光学区3a至角膜缘充盈区3c逐渐增大。In some examples, as shown in FIG. 4, the thickness of the
在一些示例中，角膜缘充盈区3c的厚度可以为0.05mm至0.1mm。例如，角膜缘充盈区3c的厚度可以为0.05mm、0.06mm、0.07mm、0.08mm、0.09mm或0.1mm。In some examples, the
在一些示例中，对巩膜接触镜3成型所形成的镜片模型的外表面可以具有分别与光学区3a、中周充盈区3b和角膜缘充盈区3c匹配的光学轮廓区、中周轮廓区和角膜缘轮廓区。具体而言，对巩膜接触镜3成型所形成的镜片模型的外表面可以具有分别与光学区3a的内镜面、中周充盈区3b的内镜面和角膜缘充盈区3c的内镜面匹配的光学轮廓区、中周轮廓区和角膜缘轮廓区。In some examples, the outer surface of the lens model formed by molding the scleral contact lens 3 may have an optical contour zone, a midperipheral contour zone and a corneal edge contour area. Specifically, the outer surface of the lens model formed by molding the scleral contact lens 3 can have the inner mirror surface of the
在一些示例中，对巩膜接触镜3成型所形成的镜片模型的外表面的参数可以包括光学区3a的内镜面的参数、中周充盈区3b的内镜面的参数和角膜缘充盈区3c的内镜面的参数。In some examples, the parameters of the outer surface of the lens model formed by molding the scleral contact lens 3 may include parameters of the inner mirror surface of the
在一些示例中，通过测量光学轮廓区、中周轮廓区和角膜缘轮廓区的参数，可以获得光学区3a的内镜面的参数、中周充盈区3b的内镜面的参数和角膜缘充盈区3c的内镜面的参数。In some examples, by measuring the parameters of the optical contour zone, the midperipheral contour zone, and the limbal contour zone, parameters of the inner mirror of the
在一些示例中，如图4所示，巩膜接触镜3还可以包括定位区3d。另外，定位区3d可以环绕角膜缘充盈区3c。此外，定位区3d的厚度可以自与角膜缘充盈区3c的交界处至巩膜接触镜3的边缘逐渐减小。In some examples, as shown in FIG. 4 , the scleral contact lens 3 may further include a
在一些示例中，对巩膜接触镜3成型所形成的镜片模型的外表面可以具有与定位区3d匹配的定位轮廓区。另外，通过测量定位轮廓区的参数，可以获得定位区3d的内镜面的参数。In some examples, the outer surface of the lens model formed by molding the scleral contact lens 3 may have a positioning contour area matching the
在一些示例中，在去除多余的固化成型材料1后，可以开始执行步骤S20。In some examples, step S20 may start to be performed after excess cured molding material 1 is removed.
在本实施方式中，如图1所示，测量接触镜S的参数的方法可以包括将镜片模型2与接触镜S分离，并切割镜片模型2形成至少一个待测模型2a(步骤S20)。In this embodiment, as shown in FIG. 1 , the method for measuring parameters of the contact lens S may include separating the lens model 2 from the contact lens S, and cutting the lens model 2 to form at least one
在一些示例中，如上所述，可以将镜片模型2与接触镜S分离。由此，能够获得独立的镜片模型2。换言之，可以将镜片模型2从接触镜S上卸下获得独立的镜片模型2。In some examples, lens model 2 may be separated from contact lens S, as described above. Thereby, an independent lens model 2 can be obtained. In other words, the lens model 2 can be removed from the contact lens S to obtain an independent lens model 2 .
在一些示例中，在步骤S20中，可以利用具有尖端的辅助工具进行分离。例如，可以使用牙签、针等具有尖端的辅助工具分离镜片模型2与接触镜S。In some examples, in step S20, an auxiliary tool with a sharp point may be used for separation. For example, the lens model 2 and the contact lens S can be separated using a pointed auxiliary tool such as a toothpick or a needle.
在一些示例中，在镜片模型2分离后，可以对镜片模型2进行切割形成待测模型2a。In some examples, after the lens model 2 is separated, the lens model 2 can be cut to form the model to be tested 2a.
图5是示出了本公开的示例所涉及的待测模型2a的结构示意图。FIG. 5 is a schematic diagram showing the structure of a model to be tested 2a involved in an example of the present disclosure.
在一些示例中，在步骤S20中，可以对镜片模型2进行切割以形成待测模型2a(参见图5)。在另一些示例中，可以对镜片模型2进行垂直切割。另外，切割镜片模型2可以形成多个待测模型2a。例如，可以形成2个、3个、4个或6个待测模型2a。In some examples, in step S20, the lens model 2 may be cut to form the model to be tested 2a (see FIG. 5 ). In other examples, the lens model 2 may be cut vertically. In addition, cutting the lens model 2 can form a plurality of
在一些示例中，如图5所示，待测模型2a可以具有切割面23。另外，待测模型2a的表面21a可以由镜片模型2的外表面21经切割而形成，待测模型2a的底面22a可以由镜片模型2的底部22经切割而形成。In some examples, as shown in FIG. 5 , the model to be tested 2 a may have a cutting surface 23 . In addition, the
在一些示例中，可以根据镜片模型2上的记号进行切割。在另一些示例中，可以在镜片模型2的记号上正中向下切割形成具有切割面23的待测模型2a。In some examples, the cutting can be done according to the markings on the lens model 2 . In some other examples, the mark on the lens model 2 can be cut down from the center to form the
在一些示例中，可以使用切割工具进行切割。例如，可以使用锋利的刀片、尺子等切割工具进行切割。另外，切割时，可以通过手或其他工具固定镜片模型2。In some examples, cutting may be performed using a cutting tool. For example, cutting tools such as sharp blades and rulers can be used for cutting. In addition, when cutting, the lens model 2 can be fixed by hand or other tools.
在一些示例中，可以沿着镜片模型2上的中轴线记号进行切割形成两个待测模型2a。另外，在一些示例中，沿着镜片模型2双矢深轴位记号切割可以形成两个矢深不同的待测模型2a。In some examples, two
在一些示例中，在步骤S20中，待测模型2a可以是对称的。由此，能够有利于提高测量的准确性。例如，待测模型2a可以是左右对称的，也即，待测模型2a可以相对于切割面23的中垂面对称。In some examples, in step S20, the model to be tested 2a may be symmetrical. Therefore, it can be beneficial to improve the accuracy of measurement. For example, the model to be tested 2 a may be bilaterally symmetrical, that is, the model to be tested 2 a may be symmetrical with respect to the mid-vertical plane of the cutting surface 23 .
在一些示例中，待测模型2a可以具有与接触镜S的多个弧区相匹配的多个测量区。在另一些示例中，待测模型2a的多个测量区的参数可以与其相对应的接触镜S的多个弧区的参数一致。另外，待测模型2a的参数可以是指待测模型2a的多个测量区的参数。In some examples, the
在一些示例中，待测模型2a的多个测量区可以由镜片模型2的多个轮廓区经切割而形成。In some examples, the multiple measurement areas of the model to be tested 2 a may be formed by cutting multiple contour areas of the lens model 2 .
在本实施方式中，如图1所示，测量待测模型2a，并根据至少一个待测模型2a的测量结果获得镜片模型2的参数，从而得到与镜片模型2对应的接触镜S的参数(步骤S30)。In this embodiment, as shown in FIG. 1, the model to be tested 2a is measured, and the parameters of the lens model 2 are obtained according to the measurement results of at least one model to be tested 2a, thereby obtaining the parameters of the contact lens S corresponding to the lens model 2 ( Step S30).
在一些示例中，在步骤S30中，可以分别对多个待测模型2a进行测量。另外，在步骤S30中，可以测量待测模型2a获得待测模型2a的参数。在另一些示例中，可以使用投影法对待测模型2a进行测量。In some examples, in step S30, the
在一些示例中，在步骤S30中，可以使用测量仪4测量至少一个待测模型2a的参数(参见图6)。在另一些示例中，在步骤S30中，在测量待测模型2a的过程中，可以对待测模型2a的多个测量区进行测量。另外，待测模型2a的参数可以是待测模型2a的多个(或一个)测量区的角度和直径(或半径)。In some examples, in step S30, the measuring
在一些示例中，在步骤S30中，通过待测模型2a的参数可以获得镜片模型2的参数。另外，通过镜片模型2的参数可以获得待测模型2a的参数。此外，另外，镜片模型2的参数可以是镜片模型2的多个(或一个)轮廓区的角度和直径。In some examples, in step S30, the parameters of the lens model 2 can be obtained through the parameters of the model to be tested 2a. In addition, the parameters of the model to be tested 2 a can be obtained through the parameters of the lens model 2 . Furthermore, additionally, the parameters of the lens model 2 may be the angles and diameters of multiple (or one) contour areas of the lens model 2 .
在一些示例中，在步骤S30中，测量仪4可以为体视显微镜或高精度投影仪。由此，能够利用投影法进行测量。其中，高精度投影仪可以为具有测量软件或内置XY计数器、测角仪和数码显示器的投影设备。In some examples, in step S30, the measuring
在一些示例中，在步骤S30中，在测量待测模型2a的过程中，测量仪4可以采集待测模型2a的图像。例如，测量仪4可以通过扫描或摄影获得待测模型2a的图像。In some examples, in step S30, during the process of measuring the model to be tested 2a, the measuring
在一些示例中，在步骤S30中，测量仪4可以对图像进行测量分析以获得测量结果。例如，测量仪4可以通过测量软件或测量工具(比如内置XY计数器、测角仪)进行测量分析。In some examples, in step S30, the measuring
图6是示出了本公开的示例所涉及的待测模型2a测量的场景示意图。图7是示出了图6中的待测模型2a的放大示意图。FIG. 6 is a schematic diagram showing the measurement of the model-to-
在一些示例中，如图6所示，测量仪4可以具有载物台41。另外，在一些示例中，如图6和图7所示，在测量待测模型2a的过程中，可以将待测模型2a的切割面23置于测量仪4的载物台41以进行测量。由此，能够有利于测量待测模型2a的表面21a的参数。换言之，待测模型2a的切割面23可以贴附于测量仪4的载物台41进行测量。In some examples, as shown in FIG. 6 , the measuring
在一些示例中，在步骤S30中，测量仪4在测量前可以经过校准。由此，能够有利于提高测量的准确性。另外，可以在15至25℃的室温下进行测量。In some examples, the measuring
在一些示例中，在步骤S30中，待测模型2a的各个测量区的参数可以分别进行测量。In some examples, in step S30, the parameters of each measurement area of the model to be tested 2a may be measured separately.
在一些示例中，在步骤S30中，使用测量仪4测量角度时，可以使基准线与待测模型2a的测量区的切线边重合，然后获得一边的读数，接着测量待测模型2a对称的另一边，获得另一边的读数，两边读数相加取平均值作为角度值。In some examples, in step S30, when using the
在一些示例中，在步骤S30中，可以通过软件的角尺测量同时测量待测模型2a的测量区两边对称的角度并取平均值作为角度值。另外，根据获得的角度值可以得到接触镜S对应的弧区的角度。In some examples, in step S30, the symmetrical angles on both sides of the measurement area of the model to be tested 2a may be simultaneously measured by using a software square measure, and an average value may be taken as the angle value. In addition, the angle of the arc region corresponding to the contact lens S can be obtained according to the obtained angle value.
在本实施方式中，利用固化成型材料1获得与接触镜S对应的镜片模型2，再对镜片模型2进行切割并测量以获得接触镜S的参数，在这种情况下，通过测量固化的镜片模型2能够获得准确的镜片模型2的参数，从而能够获得准确的接触镜S的参数。通过测量固化的镜片模型2获取接触镜S的参数，能够避免像直接测量接触镜S那样的干扰因素的影响，由此能够准确测量接触镜S的参数。In this embodiment, the lens model 2 corresponding to the contact lens S is obtained by curing the molding material 1, and then the lens model 2 is cut and measured to obtain the parameters of the contact lens S. In this case, by measuring the cured lens Model 2 can obtain accurate parameters of lens model 2, thereby obtaining accurate parameters of contact lens S. Obtaining the parameters of the contact lens S by measuring the cured lens model 2 can avoid the influence of interfering factors like direct measurement of the contact lens S, thereby enabling accurate measurement of the parameters of the contact lens S.
根据本公开，能够提供一种能够提高测量准确性的测量接触镜S的参数的方法。According to the present disclosure, it is possible to provide a method of measuring a parameter of a contact lens S capable of improving measurement accuracy.
虽然以上结合附图和实施方式对本公开进行了具体说明，但是可以理解，上述说明不以任何形式限制本公开。本领域技术人员在不偏离本公开的实质精神和范围的情况下可以根据需要对本公开进行变形和变化，这些变形和变化均落入本公开的范围内。Although the present disclosure has been specifically described above in conjunction with the drawings and embodiments, it should be understood that the above description does not limit the present disclosure in any form. Those skilled in the art can make modifications and changes to the present disclosure as needed without departing from the true spirit and scope of the present disclosure, and these modifications and changes all fall within the scope of the present disclosure.
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| CN202010622017.6ACN111595251A (en) | 2020-07-01 | 2020-07-01 | Method for measuring parameters of contact lenses |
| CN202011473374.7ACN112461142B (en) | 2020-07-01 | 2020-12-15 | Method for measuring parameters of contact lenses |
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| CN202011473372.8AActiveCN112361974B (en) | 2020-07-01 | 2020-12-15 | Method for measuring parameters of contact lenses |
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| CN111595251A (en) | 2020-08-28 |
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| CN112461142A (en) | 2021-03-09 |
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