CN219126300U - A dynamic vision tester that can adapt to changes in ambient light and variable contrast - Google Patents
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Abstract
本实用新型公开了一种可适应环境光变化及可变对比度的动态视力检测仪,属于医疗检查技术领域。该动态视力检测仪包括电机,电机的输出端连接有转盘,电机能够带动转盘旋转并调节其转速,转盘上嵌接有圆盘,圆盘上嵌接有墨水屏,墨水屏上显示有视标,视标在转盘转动过程中始终保持水平。在使用该动态视力检测仪时,接通电源,电源带动电机使转盘旋转,受试者在指定位置观察运动的视标,检测人员通过调节转盘的转速、视标的对比度、视标的大小和视标的方向,检测多种情境下受试者的动态视力,然后对受试者的测试结果进行分析并作出评价。该机械转盘加墨水屏构成的动态视力检测仪,不会受自发光电子显示器光源和刷新率的影响,测试结果更真实可靠。
The utility model discloses a dynamic visual acuity detector which can adapt to ambient light changes and variable contrast, and belongs to the technical field of medical inspection. The dynamic vision tester includes a motor, the output end of the motor is connected with a turntable, the motor can drive the turntable to rotate and adjust its speed, the turntable is embedded with a disc, the disc is embedded with an ink screen, and the ink screen displays visual marks , the visual mark is always kept horizontal during the rotation of the turntable. When using the dynamic vision tester, turn on the power, the power drives the motor to rotate the turntable, and the subject observes the moving visual target at the designated position. direction, detect the dynamic vision of the subjects in various situations, and then analyze and evaluate the test results of the subjects. The dynamic vision tester composed of a mechanical turntable and an ink screen will not be affected by the light source and refresh rate of the self-luminous electronic display, and the test results are more real and reliable.
Description
技术领域technical field
本实用新型属于医疗检查技术领域,具体涉及一种可适应环境光变化及可变对比度的动态视力检测仪。The utility model belongs to the technical field of medical inspection, and in particular relates to a dynamic vision detector which can adapt to changes in ambient light and variable contrast.
背景技术Background technique
动态视力是指当主体和物体之间存在相对运动时,识别视觉目标细节的能力。通常将它定义为个体能够正确辨识移动中物体细微部分的一种运动视觉能力。动态视觉能力直接影响观察者对动态目标判别的精准能力,是飞行员、驾驶员、运动员等特殊职业人员的重要体检指标,关乎安全驾驶和运动表现。Dynamic vision refers to the ability to recognize details of visual objects when there is relative motion between the subject and the object. It is usually defined as a motor vision ability for individuals to correctly identify subtle parts of moving objects. Dynamic visual ability directly affects the observer's ability to accurately distinguish dynamic targets. It is an important physical examination indicator for special occupations such as pilots, drivers, and athletes, and is related to safe driving and sports performance.
动态视力的检测方式多样化,如Kirschner Rotator、Motorized PegboardRotator、Micromedical Technologies、Athlete-Vision以及DVA-I等检测软件,但与这些检测软件配套使用的都是自发光的电子显示器,电子显示器的亮度、对比度和刷新率等因素都会对动态视力的检查结果产生影响。又因为上述从事特殊职业的人群常在各种各样的光线环境下活动,不同的外部光环境在评估动态视力中尤为重要,但是目前的动态视力的检测设备均应用了自发光液晶屏,无法满足动态视力的检测对外部光环境的严格要求。There are various ways to detect dynamic vision, such as Kirschner Rotator, Motorized PegboardRotator, Micromedical Technologies, Athlete-Vision and DVA-I and other detection software, but these detection software are used in conjunction with self-illuminating electronic displays, the brightness of electronic displays, Factors such as contrast and refresh rate will affect the results of dynamic vision examination. And because the above-mentioned people engaged in special occupations often move in a variety of light environments, different external light environments are particularly important in evaluating dynamic vision. However, the current dynamic vision testing equipment uses self-luminous LCD screens, which cannot Meet the strict requirements of dynamic vision detection on the external light environment.
实用新型内容Utility model content
为了克服上述现有技术的缺点,本实用新型的目的在于提供一种可适应环境光变化及可变对比度的动态视力检测仪,解决现有的动态视力检测方法所用到的自发光电子显示器都会影响动态视力检测结果的问题。In order to overcome the above-mentioned shortcomings of the prior art, the purpose of this utility model is to provide a dynamic visual acuity tester that can adapt to changes in ambient light and variable contrast, so as to solve the problem that the self-luminous electronic display used in the existing dynamic visual acuity testing method will affect the dynamic Problems with vision test results.
为了达到上述目的,本实用新型采用以下技术方案予以实现:In order to achieve the above object, the utility model adopts the following technical solutions to achieve:
本实用新型公开了一种可适应环境光变化及可变对比度的动态视力检测仪,包括电机,电机的输出端连接有转盘,转盘上嵌接有圆盘,圆盘上安装有墨水屏,墨水屏上显示有视标,视标在转盘转动过程中始终保持水平。The utility model discloses a dynamic vision detector which can adapt to changes in ambient light and variable contrast, which comprises a motor, the output end of the motor is connected with a turntable, and a disc is embedded in the turntable, and an ink screen is installed on the disc. There is an optotype displayed on the screen, and the optotype is always kept horizontal during the rotation of the turntable.
优选地,还包括电控箱和支架,电控箱和电机均设置在支架上。Preferably, an electric control box and a bracket are also included, and the electric control box and the motor are both arranged on the bracket.
进一步优选地,支架上固定有同步带轮Ⅰ,圆盘背面固定有同步带轮Ⅱ,同步带轮Ⅰ和同步带轮Ⅱ上连接有一条同步带。Further preferably, a synchronous pulley I is fixed on the support, a synchronous pulley II is fixed on the back of the disc, and a synchronous belt is connected to the synchronous pulley I and the synchronous pulley II.
优选地,支架包括固定支架和支撑支架,电机和电控箱设置在固定支架上。Preferably, the bracket includes a fixed bracket and a supporting bracket, and the motor and the electric control box are arranged on the fixed bracket.
优选地,所述转盘包括依次连接的上连接板、承接板和下连接板,上连接板、承接板和下连接板共同构成圆形的转盘。Preferably, the turntable includes an upper connecting plate, a receiving plate and a lower connecting plate connected in sequence, and the upper connecting plate, the receiving plate and the lower connecting plate together form a circular turntable.
进一步优选地,上连接板、承接板和下连接板之间通过螺钉或搭扣连接。Further preferably, the upper connecting plate, the receiving plate and the lower connecting plate are connected by screws or buckles.
优选地,承接板与电机的输出端连接。Preferably, the receiving plate is connected to the output end of the motor.
优选地,上连接板、承接板和下连接板均能通过合页实现再对折。Preferably, the upper connecting plate, the receiving plate and the lower connecting plate can all be folded in half through hinges.
优选地,墨水屏内置有墨水屏电源,背面设置有开关。Preferably, the ink screen has a built-in ink screen power supply, and a switch is provided on the back.
优选地,所述动态视力检测仪连接有应答器。Preferably, the dynamic vision detector is connected with a transponder.
与现有技术相比,本实用新型具有以下有益效果:Compared with the prior art, the utility model has the following beneficial effects:
本实用新型提供的一种可适应环境光变化及可变对比度的动态视力检测仪,该装置中机械转盘的设计结合不发光的墨水屏来显示视标,墨水屏上的视标在转盘旋转的同时始终保持水平,能够保证视标形状不发生改变,同时,墨水屏上的视标会随着外界光线的变化而变化,能够消除自发光电子显示器对动态视力检测的影响。圆盘式转动设置可以调节视标的运动速度并显示时间,能够解决现有动态视力检测装置为满足视标运动速度过快的情况下,为保证呈现时间而将显示器屏幕做得比较大而使得携带困难和成本高的问题。与常规的动态视力检测软件配套自发光电子显示器的数字式演示相比,机械式转盘与墨水屏视标结合构成的动态视力检测仪演示的场景更接近真实世界,墨水屏上的视标不受显示器光源和刷新率的影响,测试结果更真实可靠,测试更方便,携带更容易,也更适合产业化生产。The utility model provides a dynamic vision detector that can adapt to changes in ambient light and variable contrast. The design of the mechanical turntable in the device is combined with a non-luminous ink screen to display the optotype. The optotype on the ink screen rotates on the turntable. At the same time, it is always kept level, which can ensure that the shape of the visual target does not change. At the same time, the visual target on the ink screen will change with the change of external light, which can eliminate the influence of the self-luminous electronic display on the dynamic vision detection. The disc-type rotation setting can adjust the movement speed of the visual target and display the time, which can solve the problem that the existing dynamic vision detection device meets the situation that the visual target movement speed is too fast, and the display screen is made relatively large to ensure the presentation time, which makes it difficult to carry Difficult and costly problems. Compared with the digital demonstration of self-luminous electronic display with conventional dynamic vision testing software, the scene demonstrated by the dynamic vision testing instrument composed of mechanical turntable and ink screen visual mark is closer to the real world, and the visual mark on the ink screen is not affected by the display. Influenced by the light source and refresh rate, the test results are more real and reliable, the test is more convenient, the portability is easier, and it is more suitable for industrial production.
进一步地,转盘能够拆卸为上连接板、承接板和下连接板,上连接板、承接板和下连接板能通过合页实现进一步折叠,能够减小设备体积,使动态视力检测仪在运输过程中更便携。Furthermore, the turntable can be disassembled into an upper connecting plate, a receiving plate and a lower connecting plate, and the upper connecting plate, the receiving plate and the lower connecting plate can be further folded through hinges, which can reduce the volume of the device and make the dynamic vision detector more portable.
进一步地,机械式转盘和不发光的墨水屏与计算机上的动态视力评估软件结合,通过计算机控制视标的转动速度、方向和对比度,并进行结果的判定,使动态视力检测仪检测范围更广,更智能多样化。Furthermore, the mechanical turntable and the non-luminous ink screen are combined with the dynamic vision evaluation software on the computer, and the computer controls the rotation speed, direction and contrast of the visual target, and judges the results, so that the detection range of the dynamic vision tester is wider. Smarter and more diverse.
附图说明Description of drawings
图1为本实用新型的动态视力检测仪的正面结构示意图;Fig. 1 is the front structure schematic diagram of the dynamic visual acuity tester of the present utility model;
图2为本实用新型的动态视力检测仪的背面结构示意图;Fig. 2 is a schematic view of the back structure of the dynamic vision detector of the present invention;
图3为与动态视力检测仪配合使用的应答器的图;Figure 3 is a diagram of a transponder used in conjunction with a dynamic vision tester;
图4为本实用新型的动态视力检测仪的正面立体装配示意图;Fig. 4 is the front three-dimensional assembly schematic diagram of the dynamic visual acuity tester of the present utility model;
图5为本实用新型的动态视力检测仪的背面立体装配示意图。Fig. 5 is a three-dimensional assembly schematic diagram of the back side of the dynamic vision detector of the present invention.
其中:1.转盘;1-1.上连接板;1-2.承接板;1-3.下连接板;2.圆盘;3.墨水屏;4.支架;4-1.固定支架;4-2.支撑支架;5.同步带轮Ⅰ;6.电机;7.电控箱;8.同步带轮Ⅱ;9.同步带。Among them: 1. Turntable; 1-1. Upper connecting plate; 1-2. Accepting plate; 1-3. Lower connecting plate; 2. Disc; 3. Ink screen; 4. Bracket; 4-1. Fixed bracket; 4-2. Support bracket; 5. Synchronous pulley Ⅰ; 6. Motor; 7. Electric control box; 8. Synchronous pulley Ⅱ; 9. Synchronous belt.
具体实施方式Detailed ways
为了使本技术领域的人员更好地理解本实用新型方案,下面将结合本实用新型实施例中的附图,对本实用新型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实用新型一部分的实施例,而不是全部的实施例。基于本实用新型中的实施例,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,都应当属于本实用新型保护的范围。In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the utility model. Obviously, the described The embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.
需要说明的是,本实用新型的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象,而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换,以便这里描述的本实用新型的实施例能够以除了在这里图示或描述的那些以外的顺序实施。此外,术语“包括”和“具有”以及他们的任何变形,意图在于覆盖不排他的包含,例如,包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元,而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。It should be noted that the terms "first" and "second" in the specification and claims of the present utility model and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific order or sequence . It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device comprising a sequence of steps or elements is not necessarily limited to the expressly listed instead, may include other steps or elements not explicitly listed or inherent to the process, method, product or apparatus.
下面结合附图对本实用新型做进一步详细描述:Below in conjunction with accompanying drawing, the utility model is described in further detail:
本实用新型提供的一种可适应环境光变化及可变对比度的动态视力检测仪,如图1和图2,包括支架4,支架4能够为整个动态视力检测仪提供支撑;支架4上设有运动组件、电机6和电控箱7。电控箱7能够为电机6供电,并接收电脑发出的控制信号,控制电机6启停及转动速度;电机6能够带动运动组件。所述运动组件包括转盘1、圆盘2和墨水屏3,转盘1与电机6的输出端相连,电机6能够带动转盘1进行周向旋转,并根据电控箱7发出的控制信号调节转盘1的转速。圆盘2嵌接在转盘1上,墨水屏3安装在圆盘2上,墨水屏3内置有墨水屏电源,背面设置有开关,通过无线传输形式与电脑端进行数据传输;墨水屏3正面显示视标,视标在转盘1旋转过程中始终保持水平,视标的亮度及颜色会随着外界光线的变化而变化,从而消除自发光电子显示器的光源和刷新率对动态视力检测的影响。如图3,所述动态视力检测仪连接应答器和装有动态视力评估软件的电脑端,动态视力评估软件能够控制电控箱7;通过电脑端能够控制动态视力检测仪视标的方向、转盘1的转速、视标的对比度或视标的大小;通过应答器获取受试者的动态视力检测结果,并将动态视力检测结果传输至电脑端,在电脑端通过动态视力评估软件对受试者的动态视力检测结果进行核对分析并得出动态视力检测报告,使整个动态视力检测过程更科学、便捷、智能。The utility model provides a dynamic vision detector that can adapt to changes in ambient light and variable contrast, as shown in Figures 1 and 2, including a
本实用新型提供的一种可适应环境光变化及可变对比度的动态视力检测仪的使用方法,在进行动态视力检测时,先接通电控箱7电源,装有动态视力评估软件的电脑连接电控箱7并发出信号,驱动电机6带动转盘1旋转,受试者在指定位置观察转盘1上运动的视标,通过调节环境光线、转盘1的转速、视标的对比度、视标的大小和视标的方向,来检测多种情境下受试者观察移动目标时,捕获影像、分解、感知移动目标影像的能力,然后对受试者的测试结果进行分析并作出评价。The utility model provides a method for using a dynamic visual acuity tester that can adapt to changes in ambient light and variable contrast. When performing dynamic visual acuity testing, the power supply of the
实施例1Example 1
本实用新型提供的一种可适应环境光变化及可变对比度的动态视力检测仪,如图4和图5,包括能够提供支撑的支架4,支架4由固定支架4-1和支撑支架4-2组成,支撑支架4-2可快速与固定支架4-1拆分,支架4在不使用时可以通过拆卸实现便携。固定支架4-1上设有电机6和电控箱7;电控箱7能够为电机6供电,并接收电脑发出的控制信号,控制电机启停及转动速度;电机6的输出端连接有转盘1,电机6能够带动转盘1进行周向旋转,并根据电控箱7发出的控制信号调节转盘1的转速。转盘1包括由上至下通过螺钉连接的上连接板1-1、承接板1-2和下连接板1-3,进一步地,所述螺钉还可以换为搭扣,上连接板1-1、承接板1-2和下连接板1-3共同构成圆形的转盘1,承接板1-2的中心也是转盘1的中心,承接板1-2与电机6的输出端连接。进一步地,上连接板1-1、承接板1-2和下连接板1-3相互拆分后还能通过合页实现再对折,在动态视力检测仪运输过程中,对转盘1进行拆分对折便于运输。转盘1的承接板1-2远离圆心的一端嵌接有圆盘2,圆盘2安装有墨水屏3,墨水屏3内置有墨水屏电源,背面设置有开关,正面显示视标,墨水屏3通过无线传输形式与电脑端进行数据传输;墨水屏3显示的视标的亮度及颜色会随外界光线的变化而变化,从而消除自发光电子显示器的光源和刷新率对动态视力检测的影响。支撑支架4-2上还固定有同步带轮Ⅰ5,同步带轮Ⅰ5相对于支撑支架4-2不转动,圆盘2背面固定有同步带轮Ⅱ8,同步带轮Ⅱ8相对于圆盘2不转动,同步带轮Ⅰ5和同步带轮Ⅱ8连接有同一条同步带9,转盘1转动时同步带轮Ⅱ8带动同步带9围绕同步带轮Ⅰ5转动,同步带轮Ⅰ5随同步带9的转动使得圆盘2上的视标始终保持水平。所述动态视力检测仪连接应答器和装有动态视力评估软件的电脑端,通过电脑端控制动态视力检测仪的视标的方向、转盘1的转速、视标的对比度和视标的大小;通过应答器获取受试者的动态视力检测结果,应答器将动态视力检测结果传输至电脑端,在电脑端通过结果评估软件对受试者的动态视力检测结果进行核对分析并得出动态视力检测报告。The utility model provides a dynamic vision detector that can adapt to changes in ambient light and variable contrast, as shown in Figures 4 and 5, including a
本实用新型提供的一种可适应环境光变化及可变对比度的动态视力检测仪的使用方法,在使用动态视力检测仪进行动态视力检测时,接通电控箱7电源,装有动态视力评估软件的电脑连接电控箱7并发出信号,驱动电机6带动转盘1旋转,视标随着转盘1移动,受试者在指定位置观察转盘1上视标的运动,检测人员通过电脑端调节转盘1的转速和视标形状,检测受试者在转盘1的转速由低速升至高速过程中,对不同形状视标的分辨能力;检测人员通过电脑端调节视标的对比度和形状,检测受试者在转盘1匀速转动的条件下,对不同对比度视标的分辨能力;检测人员通过电脑端调节转盘1的转速、视标的对比度和形状,检测受试者在转盘1的不同速度下,对不同对比度视标的分辨能力;检测人员通过电脑端调节视标的大小和形状,检测受试者在转盘1匀速转动的条件下,对不同大小视标的分辨能力;检测人员通过电脑端调节转盘1的转速、视标的大小和形状,检测受试者在转盘1不同速度下,对不同大小视标的分辨能力;检测人员通过电脑端调节转盘1的转速、视标的大小、对比度和形状,检测受试者在转盘1不同速度下,对不同大小和对比度视标的分辨能力;受试者将检测结果通过应答器传送至电脑端,电脑端通过结果评估软件对受试者的测试结果进行分析并作出评价。The utility model provides a method for using a dynamic vision detector that can adapt to changes in ambient light and variable contrast. When using the dynamic vision detector for dynamic vision detection, the power supply of the
以上内容仅为说明本实用新型的技术思想,不能以此限定本实用新型的保护范围,凡是按照本实用新型提出的技术思想,在技术方案基础上所做的任何改动,均落入本实用新型权利要求书的保护范围之内。The above content is only to illustrate the technical idea of the utility model, and cannot limit the protection scope of the utility model. Any changes made on the basis of the technical solution according to the technical idea proposed by the utility model all fall into the scope of the utility model. within the scope of protection of the claims.
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