CN113670232B - Eccentric standard sample of virtual reality equipment and measuring method of eccentric value of standard sample - Google Patents
Eccentric standard sample of virtual reality equipment and measuring method of eccentric value of standard sample Download PDFInfo
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Abstract
Description
技术领域Technical Field
本发明涉及光学器件检测技术领域，特别是涉及一种虚拟现实设备偏心标样。本发明还涉及一种标样偏心值测量方法。The present invention relates to the field of optical device detection technology, in particular to a virtual reality device eccentricity standard sample and a standard sample eccentricity value measurement method.
背景技术Background Art
虚拟现实(Virtual Reality，VR)设备的主要结构如图1所示，包括透镜1、外壳2、屏幕3以及屏幕驱动器件4，其中透镜1的光学中心如图所示在位置5，光轴6为透镜1的光轴，外壳2包括上部的透镜安装孔和下部的屏幕安装孔，屏幕3的设计中心如图所示在位置7，光轴6与屏幕3所在平面的交点为8。The main structure of a virtual reality (VR) device is shown in FIG1 , including a lens 1, a housing 2, a screen 3, and a screen driver 4, wherein the optical center of the lens 1 is at position 5 as shown in the figure, the optical axis 6 is the optical axis of the lens 1, the housing 2 includes an upper lens mounting hole and a lower screen mounting hole, the design center of the screen 3 is at position 7 as shown in the figure, and the intersection of the optical axis 6 and the plane where the screen 3 is located is 8.
理论上交点8和屏幕设计中心7重合，但实际上，受到外壳2、透镜1、屏幕3的加工公差或者组装精度的影响，交点8并不经过设计中心7。交点8和屏幕设计中心7在屏幕3上的位置偏差称为VR设备的偏心。Theoretically, the intersection 8 coincides with the screen design center 7, but in reality, due to the processing tolerance or assembly accuracy of the housing 2, lens 1, and screen 3, the intersection 8 does not pass through the design center 7. The position deviation between the intersection 8 and the screen design center 7 on the screen 3 is called the eccentricity of the VR device.
现有技术中，使用已知偏心值的VR设备作为标样，根据标样的偏心值来测得其它VR设备产品的偏心值。但是使用VR设备作为测试标样，容易损坏，而VR设备价格昂贵，会增加经济损失。In the prior art, a VR device with a known eccentricity value is used as a standard sample, and the eccentricity value of other VR device products is measured according to the eccentricity value of the standard sample. However, the VR device used as a test standard sample is easily damaged, and the VR device is expensive, which will increase economic losses.
发明内容Summary of the invention
本发明的目的是提供一种虚拟现实设备偏心标样，用于测量虚拟现实设备偏心值，与现有技术相比能够降低经济损失。本发明还提供一种标样偏心值测量方法。The purpose of the present invention is to provide a virtual reality device eccentricity standard sample, which is used to measure the eccentricity value of the virtual reality device, and can reduce economic losses compared with the prior art. The present invention also provides a standard sample eccentricity value measurement method.
为实现上述目的，本发明提供如下技术方案：To achieve the above object, the present invention provides the following technical solutions:
一种标样装置，包括第一本体、第二本体、透镜和图卡，所述图卡、所述第二本体和所述第一本体依次叠放，所述第一本体设置有用于安装所述透镜的通孔，所述第二本体设置有使所述图卡的图案暴露的通孔。A standard sample device comprises a first body, a second body, a lens and a picture card, wherein the picture card, the second body and the first body are stacked in sequence, the first body is provided with a through hole for installing the lens, and the second body is provided with a through hole for exposing the pattern of the picture card.
优选的，所述第一本体或者所述第二本体上设置有多个定位件。Preferably, a plurality of positioning members are provided on the first body or the second body.
优选的，还包括用于支撑以及连接所述第一本体和所述第二本体的支撑体。Preferably, it also includes a supporting body for supporting and connecting the first body and the second body.
优选的，所述支撑体包括支撑柱，所述第一本体设置有用于与所述支撑柱连接的螺孔，所述第二本体设置有用于与所述支撑柱连接的沉孔。Preferably, the support body comprises a support column, the first body is provided with a screw hole for connecting with the support column, and the second body is provided with a countersunk hole for connecting with the support column.
优选的，还包括发光体，所述发光体位于所述第一本体和所述第二本体之间，用于向所述图卡提供照明光。Preferably, a light-emitting body is further included, and the light-emitting body is located between the first body and the second body, and is used to provide illumination light to the picture card.
优选的，还包括位于所述第一本体和所述第二本体之间的、用于安装所述发光体的承载体。Preferably, it also includes a carrier located between the first body and the second body and used for mounting the light-emitting body.
一种标样偏心值测量方法，用于测量以上所述的虚拟现实设备偏心标样的偏心值，所述方法包括：A method for measuring the eccentricity value of a standard sample is used to measure the eccentricity value of the eccentricity standard sample of the virtual reality device described above, the method comprising:
在所述虚拟现实设备偏心标样的第一本体上未安装透镜，获取所述虚拟现实设备偏心标样的图卡上图案的位置；No lens is installed on the first body of the virtual reality device eccentric standard sample, and the position of the pattern on the chart of the virtual reality device eccentric standard sample is obtained;
在所述虚拟现实设备偏心标样的第一本体上安装透镜，获取所述虚拟现实设备偏心标样上透镜的光学中心的位置；Mounting a lens on the first body of the virtual reality device eccentric standard sample, and obtaining the position of the optical center of the lens on the virtual reality device eccentric standard sample;
根据获得的所述虚拟现实设备偏心标样的图卡上图案的位置和所述虚拟现实设备偏心标样上透镜的光学中心的位置，获得所述虚拟现实设备偏心标样的图卡上图案与透镜光学中心的位置偏差量，得到所述虚拟现实设备偏心标样的偏心值。According to the obtained position of the pattern on the chart of the virtual reality device eccentricity standard sample and the position of the optical center of the lens on the virtual reality device eccentricity standard sample, the position deviation between the pattern on the chart of the virtual reality device eccentricity standard sample and the optical center of the lens is obtained, and the eccentricity value of the virtual reality device eccentricity standard sample is obtained.
优选的，在所述虚拟现实设备偏心标样的第一本体或者第二本体上设置有多个定位件；Preferably, a plurality of positioning members are provided on the first body or the second body of the virtual reality device eccentric standard sample;
获取所述虚拟现实设备偏心标样的图卡上图案的位置包括：获取所述虚拟现实设备偏心标样的图卡上图案分别与各个所述定位件的相对位置；Acquiring the position of the pattern on the chart of the virtual reality device eccentric standard sample comprises: acquiring the relative position of the pattern on the chart of the virtual reality device eccentric standard sample and each of the positioning members;
获取所述虚拟现实设备偏心标样上透镜的光学中心的位置包括：获取所述虚拟现实设备偏心标样上透镜的光学中心分别与各个所述定位件的相对位置；Acquiring the position of the optical center of the lens on the eccentric standard sample of the virtual reality device comprises: acquiring the relative position of the optical center of the lens on the eccentric standard sample of the virtual reality device and each of the positioning members;
获得所述虚拟现实设备偏心标样的图卡上图案与透镜光学中心的位置偏差量包括：根据获得的所述虚拟现实设备偏心标样的图卡上图案分别与各个所述定位件的相对位置以及所述虚拟现实设备偏心标样上透镜的光学中心分别与各个所述定位件的相对位置，获得所述虚拟现实设备偏心标样的图卡上图案与透镜光学中心的位置偏差量。Obtaining the position deviation amount between the pattern on the chart of the virtual reality device eccentric standard sample and the optical center of the lens includes: obtaining the position deviation amount between the pattern on the chart of the virtual reality device eccentric standard sample and the optical center of the lens according to the relative positions of the pattern on the chart of the virtual reality device eccentric standard sample and each of the positioning parts and the relative positions of the optical center of the lens on the virtual reality device eccentric standard sample and each of the positioning parts.
优选的，获取所述虚拟现实设备偏心标样的图卡上图案的位置包括：以所述虚拟现实设备偏心标样上预设点为原点建立二维坐标系，测量得到所述虚拟现实设备偏心标样的各个所述定位件的位置以及所述虚拟现实设备偏心标样的图卡上图案的位置，得到所述虚拟现实设备偏心标样的图卡上图案分别与各个所述定位件的相对位置；Preferably, obtaining the position of the pattern on the chart of the virtual reality device eccentric standard sample comprises: establishing a two-dimensional coordinate system with a preset point on the virtual reality device eccentric standard sample as the origin, measuring the positions of each of the positioning members of the virtual reality device eccentric standard sample and the position of the pattern on the chart of the virtual reality device eccentric standard sample, and obtaining the relative positions of the pattern on the chart of the virtual reality device eccentric standard sample and each of the positioning members;
获取所述虚拟现实设备偏心标样上透镜的光学中心的位置包括：以所述虚拟现实设备偏心标样上所述预设点为原点建立二维坐标系，测量得到所述虚拟现实设备偏心标样的各个所述定位件的位置以及所述虚拟现实设备偏心标样上透镜光学中心的位置，得到所述虚拟现实设备偏心标样上透镜的光学中心分别与各个所述定位件的相对位置。Obtaining the position of the optical center of the lens on the eccentric standard sample of the virtual reality device includes: establishing a two-dimensional coordinate system with the preset point on the eccentric standard sample of the virtual reality device as the origin, measuring the positions of each of the positioning parts of the eccentric standard sample of the virtual reality device and the position of the optical center of the lens on the eccentric standard sample of the virtual reality device, and obtaining the relative positions of the optical center of the lens on the eccentric standard sample of the virtual reality device and each of the positioning parts.
优选的，具体包括：Preferably, specifically including:
所述虚拟现实设备偏心标样的图卡上图案与所述虚拟现实设备偏心标样上透镜的光学中心沿X方向的位置偏差量为所述虚拟现实设备偏心标样的图卡上图案与所述虚拟现实设备偏心标样上透镜的光学中心沿Y方向的位置偏差量为 The position deviation along the X direction between the pattern on the chart of the virtual reality device eccentric standard sample and the optical center of the lens on the virtual reality device eccentric standard sample is The position deviation along the Y direction between the pattern on the chart of the virtual reality device eccentric standard sample and the optical center of the lens on the virtual reality device eccentric standard sample is
其中，i表示第i个定位件，N表示共选择N个定位件，N≥3，Δx_i表示所述虚拟现实设备偏心标样的图卡上图案与第i个定位件的相对位置与所述虚拟现实设备偏心标样上透镜的光学中心与第i个定位件的相对位置沿X方向的差量，Δy_i表示所述虚拟现实设备偏心标样的图卡上图案与第i个定位件的相对位置与所述虚拟现实设备偏心标样上透镜的光学中心与第i个定位件的相对位置沿Y方向的差量。Wherein, i represents the i-th positioning member, N represents that a total of N positioning members are selected, N≥3, Δx_i represents the difference between the relative position of the pattern on the chart of the eccentric standard sample of the virtual reality device and the i-th positioning member and the relative position of the optical center of the lens on the eccentric standard sample of the virtual reality device and the i-th positioning member along the X direction, Δy_i represents the difference between the relative position of the pattern on the chart of the eccentric standard sample of the virtual reality device and the i-th positioning member and the relative position of the optical center of the lens on the eccentric standard sample of the virtual reality device and the i-th positioning member along the Y direction.
由上述技术方案可知，本发明所提供的虚拟现实设备偏心标样包括第一本体、第二本体、透镜和图卡，图卡、第二本体和第一本体依次叠放，第一本体设置有用于安装透镜的通孔，第二本体设置有使图卡的图案暴露的通孔。本标样可以作为测量虚拟现实设备偏心值的标样，使得不需要使用虚拟现实设备作为标样，能够降低经济损失。It can be seen from the above technical solution that the virtual reality device eccentricity standard provided by the present invention comprises a first body, a second body, a lens and a chart, the chart, the second body and the first body are stacked in sequence, the first body is provided with a through hole for installing the lens, and the second body is provided with a through hole for exposing the pattern of the chart. The standard can be used as a standard for measuring the eccentricity value of the virtual reality device, so that the virtual reality device does not need to be used as a standard, which can reduce economic losses.
本发明提供的一种标样偏心值测量方法，能够达到上述有益效果。The present invention provides a method for measuring the eccentricity value of a standard sample, which can achieve the above-mentioned beneficial effects.
附图说明BRIEF DESCRIPTION OF THE 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一些实施例，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的附图。In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
图1为虚拟现实设备的主要结构示意图；FIG1 is a schematic diagram of the main structure of a virtual reality device;
图2为本发明实施例提供的一种虚拟现实设备偏心标样的示意图；FIG2 is a schematic diagram of an eccentric standard sample of a virtual reality device provided by an embodiment of the present invention;
图3为图2所示标样的爆炸图；FIG3 is an exploded view of the standard sample shown in FIG2 ;
图4为图2所示标样的俯视图；FIG4 is a top view of the standard sample shown in FIG2 ;
图5为本发明实施例提供的一种标样偏心值测量方法的流程图；FIG5 is a flow chart of a method for measuring the eccentricity of a standard sample provided by an embodiment of the present invention;
图6为本发明实施例中通过测量台测量物体位置的示意图。FIG. 6 is a schematic diagram of measuring the position of an object by a measuring platform according to an embodiment of the present invention.
具体实施方式DETAILED DESCRIPTION
为了使本技术领域的人员更好地理解本发明中的技术方案，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，都应当属于本发明保护的范围。In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.
本实施例提供一种虚拟现实设备偏心标样，包括第一本体、第二本体、透镜和图卡，所述图卡、所述第二本体和所述第一本体依次叠放，所述第一本体设置有用于安装所述透镜的通孔，所述第二本体设置有使所述图卡的图案暴露的通孔。This embodiment provides an eccentric standard sample for a virtual reality device, comprising a first body, a second body, a lens and a picture card, wherein the picture card, the second body and the first body are stacked in sequence, the first body is provided with a through hole for installing the lens, and the second body is provided with a through hole for exposing a pattern of the picture card.
通过第二本体上通孔以及第一本体上通孔能够使图卡上图案暴露出来。可以将本实施例的标样设计成与待测试虚拟现实设备有相同的外形尺寸，从而使用本标样能够测量虚拟现实设备的偏心值。The pattern on the picture card can be exposed through the through hole on the second body and the through hole on the first body. The standard sample of this embodiment can be designed to have the same outer dimensions as the virtual reality device to be tested, so that the eccentricity value of the virtual reality device can be measured using this standard sample.
现有使用虚拟现实设备作为测量产品偏心值的标样，虚拟现实设备的屏幕需要驱动器件进行驱动来点亮屏幕，而驱动器件复杂且体积大，并且屏幕和驱动器件价格昂贵，损坏会产生巨大的经济损失。而本实施例的虚拟现实设备偏心标样，通过图卡显示图案，相比能够降低经济损失。In the prior art, virtual reality devices are used as standard samples for measuring the eccentricity of products. The screen of the virtual reality device needs a driver to light up the screen, but the driver is complex and bulky, and the screen and driver are expensive, and damage will cause huge economic losses. The eccentricity standard sample of the virtual reality device in this embodiment can reduce economic losses by displaying a pattern through a chart.
请参考图2、图3和图4，图2为本实施例提供的一种虚拟现实设备偏心标样的示意图，图3为图2所示标样的爆炸图，图4为图2所示标样的俯视图。如图所示，标样包括第一本体101、第二本体102、透镜(图中未示出)和图卡100。图卡100、第二本体102和第一本体101依次叠放，第二本体102设置有使图卡100图案暴露出的通孔，第一本体101设置有用于安装透镜的通孔。为了与虚拟现实设备的外形结构匹配，第一本体101和第二本体102分别都设置有两个通孔。Please refer to Figures 2, 3 and 4. Figure 2 is a schematic diagram of an eccentric standard sample of a virtual reality device provided in this embodiment, Figure 3 is an exploded view of the standard sample shown in Figure 2, and Figure 4 is a top view of the standard sample shown in Figure 2. As shown in the figure, the standard sample includes a first body 101, a second body 102, a lens (not shown in the figure) and a picture card 100. The picture card 100, the second body 102 and the first body 101 are stacked in sequence, the second body 102 is provided with a through hole to expose the pattern of the picture card 100, and the first body 101 is provided with a through hole for installing the lens. In order to match the appearance structure of the virtual reality device, the first body 101 and the second body 102 are respectively provided with two through holes.
图卡100上图案可以是但不限于十字图形、X图形、环形图形或者点状图形。优选的，图卡100使用不易发生形变的材料制作，可以采用但不限于陶瓷图卡或者玻璃图卡。本实施例标样使用图卡替代虚拟现实设备的电子屏幕进行显示图案，不需要设置驱动器件来点亮屏幕，不仅能够降低成本，并且使标样更实用。The pattern on the chart 100 may be, but is not limited to, a cross pattern, an X pattern, a ring pattern, or a dot pattern. Preferably, the chart 100 is made of a material that is not easily deformed, and may be, but is not limited to, a ceramic chart or a glass chart. In this embodiment, the standard sample uses a chart to replace the electronic screen of a virtual reality device to display the pattern, and does not need to set a driver to light up the screen, which can not only reduce costs, but also make the standard sample more practical.
本实施例标样中，第一本体或者第二本体上设置有定位件，根据标样上定位件可以测量图卡上图案或者安装到标样的透镜的位置。可选的，定位件可以是设置在第一本体或者第二本体上容易识别的图案或者标志物，示例性的可以是设置在第一本体或者第二本体上的定位孔。In the standard sample of this embodiment, a positioning piece is provided on the first body or the second body, and the position of the pattern on the chart or the lens installed on the standard sample can be measured according to the positioning piece on the standard sample. Optionally, the positioning piece can be an easily identifiable pattern or marker provided on the first body or the second body, and an exemplary positioning hole can be provided on the first body or the second body.
优选的，在第一本体或者第二本体上设置多个定位件，优选设置有至少三个定位件，由于需要根据至少三个点构建一个平面，因此本实施例的标样设置至少三个定位件，通过定位件能够确定一个平面，可以测量出图卡图案或者安装到标样的透镜在二维平面内的位置。可参考图4所示，本实施例的标样在第二本体102的边缘不同位置分别设置了三个定位孔103。Preferably, a plurality of positioning members are provided on the first body or the second body, preferably at least three positioning members are provided. Since a plane needs to be constructed based on at least three points, the standard sample of this embodiment is provided with at least three positioning members, and a plane can be determined by the positioning members, and the position of the chart pattern or the lens installed on the standard sample in the two-dimensional plane can be measured. As shown in FIG. 4 , the standard sample of this embodiment is provided with three positioning holes 103 at different positions on the edge of the second body 102.
优选的，标样还可包括用于支撑以及连接所述第一本体和所述第二本体的支撑体，通过支撑体将第一本体和第二本体支撑和连接，以形成标样的结构。请参考图2或者图3所示，本实施例的标样中支撑体包括支撑柱104，采用四个处于不同位置的支撑柱104将第一本体101和第二本体102连接。其中优选的，如图所示，第一本体101设置有用于与支撑柱104连接的螺孔105，第二本体102设置有用于与所述支撑柱104连接的沉孔106，将支撑柱104上端与第一本体101的螺孔105连接，支撑柱104下端与第二本体102的沉孔106连接，从而将第一本体101和第二本体102连接。Preferably, the standard sample may also include a support body for supporting and connecting the first body and the second body, and the first body and the second body are supported and connected by the support body to form the structure of the standard sample. Please refer to Figure 2 or Figure 3. The support body in the standard sample of this embodiment includes a support column 104, and four support columns 104 in different positions are used to connect the first body 101 and the second body 102. Preferably, as shown in the figure, the first body 101 is provided with a screw hole 105 for connecting with the support column 104, and the second body 102 is provided with a countersunk hole 106 for connecting with the support column 104. The upper end of the support column 104 is connected to the screw hole 105 of the first body 101, and the lower end of the support column 104 is connected to the countersunk hole 106 of the second body 102, so as to connect the first body 101 and the second body 102.
可以理解的是，在本发明其它实施例中，可以采用其它连接方式将第一本体和第二本体安装和连接，不限于以上所述方式，可以是可拆卸连接方式或者不可拆卸连接方式，都在本发明保护范围内。It is understandable that in other embodiments of the present invention, other connection methods may be used to install and connect the first body and the second body, not limited to the above-mentioned methods, and may be detachable connection methods or non-detachable connection methods, all within the protection scope of the present invention.
进一步优选的，所述标样还可包括发光体，所述发光体位于所述第一本体和所述第二本体之间，用于向所述图卡提供照明光。在测量本标样图卡上图案的位置时，通过发光体向图卡照明，保证能够准确地获取到图卡上图案的图像，能够准确地测量其位置。当测量场景中没有外界照明光时也能够进行测量。可选的，发光体的形状可以是但不限于环状或者碗状。发光体可以使用但不限于LED。Further preferably, the standard sample may also include a light emitter, which is located between the first body and the second body and is used to provide illumination light to the chart. When measuring the position of the pattern on the standard chart, the chart is illuminated by the light emitter to ensure that the image of the pattern on the chart can be accurately obtained and its position can be accurately measured. Measurement can also be performed when there is no external illumination light in the measurement scene. Optionally, the shape of the light emitter can be but is not limited to a ring or a bowl. The light emitter can use but is not limited to LED.
请参考图2或者图3，图示的标样中发光体107位于第一本体101和第二本体102之间，发光体107为环状，发光体107存在中空部分能够使图卡100上图案暴露出。优选的，图示的标样还包括用于安装发光体107的承载体108，承载体108位于第一本体101和第二本体102之间。优选的，在第一本体101上还设置有用于与承载体108连接的螺孔109，在承载体108上设置有螺孔，可使用螺钉将第一本体101和承载体108连接固定并且使两者可拆卸。Please refer to FIG. 2 or FIG. 3. In the standard sample shown in the figure, the luminous body 107 is located between the first body 101 and the second body 102. The luminous body 107 is annular, and there is a hollow part in the luminous body 107 so that the pattern on the chart 100 can be exposed. Preferably, the standard sample shown in the figure also includes a carrier 108 for mounting the luminous body 107, and the carrier 108 is located between the first body 101 and the second body 102. Preferably, a screw hole 109 for connecting with the carrier 108 is also provided on the first body 101. The screw hole is provided on the carrier 108, and the first body 101 and the carrier 108 can be connected and fixed by screws and the two can be detached.
进一步优选的，可参考图3所示，标样还可包括盖板110，设置在图卡100远离第二本体102一侧，用于起到保护图卡100的作用。Further preferably, as shown in FIG. 3 , the standard sample may further include a cover plate 110 , which is disposed on a side of the image card 100 away from the second body 102 , and is used to protect the image card 100 .
优选的，本实施例标样可采用金属材质，第一本体101、第二本体102或者承载体108可使用金属材质，使结构更稳定不容易变形，有助于提高测量精度。Preferably, the standard sample of this embodiment can be made of metal material, and the first body 101, the second body 102 or the carrier 108 can be made of metal material, so that the structure is more stable and not easy to deform, which helps to improve the measurement accuracy.
相应的，本实施例还提供一种标样偏心值测量方法，用于测量以上所述的虚拟现实设备偏心标样的偏心值。请参考图5，图5为本实施例提供的一种标样偏心值测量方法的流程图，所述方法包括以下步骤：Correspondingly, this embodiment also provides a standard sample eccentricity value measurement method, which is used to measure the eccentricity value of the virtual reality device eccentricity standard sample mentioned above. Please refer to Figure 5, which is a flow chart of a standard sample eccentricity value measurement method provided by this embodiment, and the method includes the following steps:
S200：在所述虚拟现实设备偏心标样的第一本体上未安装透镜，获取所述虚拟现实设备偏心标样的图卡上图案的位置。S200: No lens is installed on the first body of the virtual reality device eccentricity standard sample, and the position of the pattern on the chart of the virtual reality device eccentricity standard sample is obtained.
在虚拟现实设备偏心标样的第一本体上先不安装透镜，测量获得虚拟现实设备偏心标样的图卡上图案的位置。Without installing a lens on the first body of the virtual reality device eccentricity standard sample, the position of the pattern on the chart of the virtual reality device eccentricity standard sample is measured and obtained.
S201：在所述虚拟现实设备偏心标样的第一本体上安装透镜，获取所述虚拟现实设备偏心标样上透镜的光学中心的位置。S201: Mounting a lens on a first body of the virtual reality device eccentricity standard sample, and obtaining a position of an optical center of the lens on the virtual reality device eccentricity standard sample.
在虚拟现实设备偏心标样的第一本体上安装上透镜，测量获得虚拟现实设备偏心标样上透镜的光学中心的位置。An upper lens is mounted on the first body of the virtual reality device eccentric standard sample, and the position of the optical center of the upper lens of the virtual reality device eccentric standard sample is measured.
S202：根据获得的所述虚拟现实设备偏心标样的图卡上图案的位置和所述虚拟现实设备偏心标样上透镜的光学中心的位置，获得所述虚拟现实设备偏心标样的图卡上图案与透镜光学中心的位置偏差量，得到所述虚拟现实设备偏心标样的偏心值。S202: According to the obtained position of the pattern on the chart of the virtual reality device eccentricity standard sample and the position of the optical center of the lens on the virtual reality device eccentricity standard sample, the position deviation between the pattern on the chart of the virtual reality device eccentricity standard sample and the optical center of the lens is obtained to obtain the eccentricity value of the virtual reality device eccentricity standard sample.
本实施例的标样偏心值测量方法，首先在虚拟现实设备偏心标样的第一本体上未安装透镜，获得虚拟现实设备偏心标样的图卡上图案的位置，然后在虚拟现实设备偏心标样的第一本体上安装透镜，获得虚拟现实设备偏心标样上透镜的光学中心的位置，进而得到虚拟现实设备偏心标样的图卡上图案与透镜光学中心的位置偏差量，实现测量得到虚拟现实设备偏心标样的偏心值。The standard sample eccentricity measurement method of the present embodiment is as follows: first, a lens is not installed on the first body of the virtual reality device eccentricity standard sample, and the position of the pattern on the chart of the virtual reality device eccentricity standard sample is obtained; then a lens is installed on the first body of the virtual reality device eccentricity standard sample, and the position of the optical center of the lens on the virtual reality device eccentricity standard sample is obtained; then, the position deviation between the pattern on the chart of the virtual reality device eccentricity standard sample and the optical center of the lens is obtained, so as to measure and obtain the eccentricity value of the virtual reality device eccentricity standard sample.
优选的，在虚拟现实设备偏心标样的第一本体或者第二本体上设置有多个定位件，可基于标样上定位件，测量获得虚拟现实设备偏心标样的图卡上图案的位置以及透镜光学中心的位置，能够减小测量误差，提高测量精度。Preferably, a plurality of positioning members are provided on the first body or the second body of the eccentric standard sample of the virtual reality device. Based on the positioning members on the standard sample, the position of the pattern on the chart of the eccentric standard sample of the virtual reality device and the position of the optical center of the lens can be measured, thereby reducing the measurement error and improving the measurement accuracy.
可选的，在步骤S200中获取虚拟现实设备偏心标样的图卡上图案的位置包括：获取所述虚拟现实设备偏心标样的图卡上图案分别与各个所述定位件的相对位置。Optionally, obtaining the position of the pattern on the chart of the virtual reality device eccentric standard sample in step S200 includes: obtaining the relative position of the pattern on the chart of the virtual reality device eccentric standard sample and each of the positioning members.
可选的在实际测量中，可以以虚拟现实设备偏心标样上预设点为原点建立二维坐标系，测量得到所述虚拟现实设备偏心标样的各个所述定位件的位置以及所述虚拟现实设备偏心标样的图卡上图案的位置，得到所述虚拟现实设备偏心标样的图卡上图案分别与各个所述定位件的相对位置。Optionally, in actual measurement, a two-dimensional coordinate system can be established with a preset point on the eccentric standard sample of the virtual reality device as the origin, and the positions of each positioning member of the eccentric standard sample of the virtual reality device and the position of the pattern on the chart of the eccentric standard sample of the virtual reality device are measured to obtain the relative positions of the pattern on the chart of the eccentric standard sample of the virtual reality device and each positioning member.
可参考图6，图6为本实施例中通过测量台测量物体位置的示意图，将标样300放置在测量台301上，可以以标样300上一点为原点建立二维坐标系，比如以标样300左上角为原点建立x-o-y坐标系，结合使用测量设备302测量得到标样300的至少三个定位件的位置以及标样300的图卡上图案的位置。相应的，根据测得的标样300至少三个定位件的位置以及标样300的图卡上图案的位置，得到标样300的图卡上图案分别与标样300上各个定位件的相对位置。Referring to FIG6 , FIG6 is a schematic diagram of measuring the position of an object by a measuring platform in this embodiment. The standard sample 300 is placed on the measuring platform 301, and a two-dimensional coordinate system can be established with a point on the standard sample 300 as the origin, such as an x-o-y coordinate system with the upper left corner of the standard sample 300 as the origin, and the positions of at least three positioning members of the standard sample 300 and the position of the pattern on the chart of the standard sample 300 are measured by combining with the measuring device 302. Accordingly, according to the measured positions of at least three positioning members of the standard sample 300 and the position of the pattern on the chart of the standard sample 300, the relative positions of the pattern on the chart of the standard sample 300 and each positioning member on the standard sample 300 are obtained.
可选的，在步骤S201中获取虚拟现实设备偏心标样上透镜的光学中心的位置包括：获取所述虚拟现实设备偏心标样上透镜的光学中心分别与各个所述定位件的相对位置。Optionally, obtaining the position of the optical center of the lens on the virtual reality device eccentric standard sample in step S201 includes: obtaining the relative position of the optical center of the lens on the virtual reality device eccentric standard sample and each of the positioning members.
可选的，在实际测量中，可以以虚拟现实设备偏心标样上所述预设点为原点建立二维坐标系，测量得到所述虚拟现实设备偏心标样的各个所述定位件的位置以及所述虚拟现实设备偏心标样上透镜光学中心的位置，得到所述虚拟现实设备偏心标样上透镜的光学中心分别与各个所述定位件的相对位置。Optionally, in actual measurement, a two-dimensional coordinate system can be established with the preset point on the virtual reality device eccentric standard as the origin, and the positions of each of the positioning parts of the virtual reality device eccentric standard and the position of the optical center of the lens on the virtual reality device eccentric standard are measured to obtain the relative positions of the optical center of the lens on the virtual reality device eccentric standard and each of the positioning parts.
将虚拟现实设备偏心标样上安装了透镜之后，同样可以将该标样放置到测量台300上，以标样上与上述相同的点为原点建立二维坐标系，比如仍以标样左上角为原点建立x-o-y坐标系，结合使用测量设备302测量得到标样的至少三个定位件的位置以及标样的透镜光学中心的位置。进而，根据测得的标样至少三个定位件的位置以及标样的透镜光学中心的位置，得到标样的透镜光学中心分别与标样上各个定位件的相对位置。After the lens is installed on the virtual reality device eccentric standard, the standard can also be placed on the measuring table 300, and a two-dimensional coordinate system is established with the same point on the standard as the origin. For example, an x-o-y coordinate system is still established with the upper left corner of the standard as the origin, and the positions of at least three positioning parts of the standard and the position of the lens optical center of the standard are measured by combining the measuring device 302. Then, according to the measured positions of at least three positioning parts of the standard and the position of the lens optical center of the standard, the relative positions of the lens optical center of the standard and each positioning part on the standard are obtained.
可选的，测量台可使用但不限于光学二次元测量仪。Optionally, the measuring platform may use but is not limited to an optical two-dimensional measuring instrument.
可选的，在步骤S202中获得虚拟现实设备偏心标样的图卡上图案与透镜光学中心的位置偏差量，得到虚拟现实设备偏心标样的偏心值，可具体包括：Optionally, in step S202, obtaining the position deviation between the pattern on the chart of the virtual reality device eccentricity standard sample and the optical center of the lens to obtain the eccentricity value of the virtual reality device eccentricity standard sample may specifically include:
所述虚拟现实设备偏心标样的图卡上图案与所述虚拟现实设备偏心标样上透镜的光学中心沿X方向的位置偏差量为所述虚拟现实设备偏心标样的图卡上图案与所述虚拟现实设备偏心标样上透镜的光学中心沿Y方向的位置偏差量为 The position deviation along the X direction between the pattern on the chart of the virtual reality device eccentric standard sample and the optical center of the lens on the virtual reality device eccentric standard sample is The position deviation along the Y direction between the pattern on the chart of the virtual reality device eccentric standard sample and the optical center of the lens on the virtual reality device eccentric standard sample is
其中，i表示第i个定位件，N表示共选择N个定位件，N≥3，Δx_i表示所述虚拟现实设备偏心标样的图卡上图案与第i个定位件的相对位置与所述虚拟现实设备偏心标样上透镜的光学中心与第i个定位件的相对位置沿X方向的差量，Δy_i表示所述虚拟现实设备偏心标样的图卡上图案与第i个定位件的相对位置与所述虚拟现实设备偏心标样上透镜的光学中心与第i个定位件的相对位置沿Y方向的差量。Wherein, i represents the i-th positioning member, N represents that a total of N positioning members are selected, N≥3, Δx_i represents the difference between the relative position of the pattern on the chart of the eccentric standard sample of the virtual reality device and the i-th positioning member and the relative position of the optical center of the lens on the eccentric standard sample of the virtual reality device and the i-th positioning member along the X direction, Δy_i represents the difference between the relative position of the pattern on the chart of the eccentric standard sample of the virtual reality device and the i-th positioning member and the relative position of the optical center of the lens on the eccentric standard sample of the virtual reality device and the i-th positioning member along the Y direction.
即，Δx_i＝lens_xi-cross_xi，lens_xi表示虚拟现实设备偏心标样上透镜的光学中心到第i个定位件沿X方向的距离，cross_xi表示虚拟现实设备偏心标样的图卡上图案到第i个定位件沿X方向的距离。That is, Δx_i=lens_xi-cross_xi, lens_xi represents the distance from the optical center of the lens on the virtual reality device eccentric standard sample to the i-th positioning piece along the X direction, and cross_xi represents the distance from the pattern on the chart of the virtual reality device eccentric standard sample to the i-th positioning piece along the X direction.
Δy_i＝lens_yi-cross_yi，lens_yi表示虚拟现实设备偏心标样上透镜的光学中心到第i个定位件沿Y方向的距离，cross_yi表示虚拟现实设备偏心标样的图卡上图案到第i个定位件沿Y方向的距离。Δy_i=lens_yi-cross_yi, lens_yi represents the distance from the optical center of the lens on the eccentric standard sample of the virtual reality device to the i-th positioning piece along the Y direction, and cross_yi represents the distance from the pattern on the chart of the eccentric standard sample of the virtual reality device to the i-th positioning piece along the Y direction.
即，本实施例标样沿X方向的偏心值为沿Y方向的偏心值为 That is, the eccentricity of the standard sample in this embodiment along the X direction is The eccentricity along the Y direction is
示例性的以建立x-o-y坐标系，以取标样上三个定位件为例，标样的图卡上图案分别与各个定位件的相对位置表示为(cross_x1，cross_y1)、(cross_x2，cross_y2)和(cross_x3，cross_y3)，标样上透镜的光学中心分别与各个定位件的相对位置表示为(lens_x1，lens_y1)、(lens_x2，lens_y2)和(lens_x3，lens_y3)。By way of example, an x-o-y coordinate system is established, with three positioning parts on a standard sample as an example. The relative positions of the patterns on the standard sample chart and the respective positioning parts are represented as (cross_x1, cross_y1), (cross_x2, cross_y2) and (cross_x3, cross_y3), and the relative positions of the optical centers of the lenses on the standard sample and the respective positioning parts are represented as (lens_x1, lens_y1), (lens_x2, lens_y2) and (lens_x3, lens_y3).
相应得到三组相对位置分别沿X方向、Y方向的差量：Correspondingly, the differences of the three sets of relative positions along the X and Y directions are obtained:
Δx_1＝lens_x1-cross_x1，Δy_1＝lens_y1-cross_y1，Δx_1=lens_x1-cross_x1, Δy_1=lens_y1-cross_y1,
Δx_2＝lens_x2-cross_x2，Δy_2＝lens_y2-cross_y2，Δx_3＝lens_x3-cross_x3，Δy_3＝lens_y3-cross_y3。Δx_2=lens_x2-cross_x2, Δy_2=lens_y2-cross_y2, Δx_3=lens_x3-cross_x3, Δy_3=lens_y3-cross_y3.
那么，标样的图卡上图案与透镜的光学中心沿X方向的位置偏差量为(Δx_1+Δx_2+Δx_3)/3，标样的图卡上图案与透镜的光学中心沿Y方向的位置偏差量为(Δy_1+Δy_2+Δy_3)/3。从而测量得到了标样的偏心值。Then, the position deviation between the pattern on the standard sample chart and the optical center of the lens along the X direction is (Δx_1+Δx_2+Δx_3)/3, and the position deviation between the pattern on the standard sample chart and the optical center of the lens along the Y direction is (Δy_1+Δy_2+Δy_3)/3. Thus, the eccentricity value of the standard sample is measured.
现有使用虚拟现实设备作为标样，测量该虚拟现实设备的偏心值时需要拆掉透镜以及再组装透镜，在拆卸或者组装过程中可能使产品外壳发生微小形变，会导致使用该标样测量其它产品的结果不准确，并且在高频率使用的情况下，标样产品容易损坏。另外，虚拟现实设备通过驱动器件驱动点亮屏幕，屏幕与驱动器件连接薄弱，使用寿命短，并且屏幕与驱动器件价格昂贵。而使用本实施例的标样，不需要使用虚拟现实设备作为标样，能够降低成本，降低经济损失。In the existing use of virtual reality devices as standard samples, when measuring the eccentricity value of the virtual reality device, the lens needs to be disassembled and reassembled. During the disassembly or assembly process, the product shell may be slightly deformed, which will lead to inaccurate results when using the standard sample to measure other products. In addition, the standard sample product is easily damaged under high-frequency use. In addition, the virtual reality device is driven by a driver to light up the screen. The connection between the screen and the driver is weak, the service life is short, and the screen and the driver are expensive. When using the standard sample of this embodiment, there is no need to use a virtual reality device as a standard sample, which can reduce costs and reduce economic losses.
以上对本发明所提供的虚拟现实设备偏心标样及标样偏心值测量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。应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以对本发明进行若干改进和修饰，这些改进和修饰也落入本发明权利要求的保护范围内。The above is a detailed introduction to the virtual reality device eccentricity standard and the standard eccentricity value measurement method provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.
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