阅读说明：本技术 一种采用镜片组件检测视力的方法 (Method for detecting eyesight by using lens assembly ) 是由 刘意 谷中秀 李媛媛 马宇 马俊磊 于 2021-09-22 设计创作，主要内容包括：本发明提供一种采用镜片组件检测视力的方法,该方法包括以下步骤：步骤一、检测者将一只眼睛通过检测口进行观察,另一只眼睛进行遮挡,通过显示屏随机显示图标,显示屏显示的图标经过平面反射镜、半透半反射镜及凹面反射镜传递至检测口处；步骤二、检测者根据自己的观察情况选择手动调整图标的大小然后对图标的信息进行回答或直接进行图标的信息进行回答；步骤三、调节组件根据检测者的回答对图标进行调整,通过凹面镜成像光路的原理,可以将轴向距离进行拉伸,因此可以较小的范围之内即可模拟较远距离的检测效果,通过显示屏显示图标的检测方法可以实现检测图标的随机切换,避免了因待检测者对检测图标进行记忆而导致的检测不准确的现象。(The invention provides a method for detecting vision by adopting a lens assembly, which comprises the following steps: firstly, a detector observes one eye through a detection port, the other eye is shielded, icons are randomly displayed through a display screen, and the icons displayed on the display screen are transmitted to the detection port through a plane reflector, a semi-transparent semi-reflecting mirror and a concave reflector; secondly, the inspector selects to manually adjust the size of the icon according to the observation condition of the inspector and then answers the information of the icon or directly answers the information of the icon; and step three, the adjusting assembly adjusts the icon according to the answer of the inspector, and the axial distance can be stretched according to the principle of the concave mirror imaging light path, so that the detection effect of a longer distance can be simulated in a smaller range, the random switching of the detection icon can be realized by the detection method of displaying the icon on the display screen, and the phenomenon of inaccurate detection caused by the memory of the inspector on the detection icon is avoided.)

1. A method of detecting vision using a lens assembly, the method comprising the steps of:

firstly, a detector observes one eye through a detection port, the other eye is shielded, icons are randomly displayed through a display screen, and the icons displayed on the display screen are transmitted to the detection port through a plane reflector, a semi-transparent semi-reflecting mirror and a concave reflector;

secondly, the inspector selects to manually adjust the size of the icon according to the observation condition of the inspector and then answers the information of the icon or directly answers the information of the icon;

and step three, the adjusting component adjusts the icon according to the answer of the inspector.

2. The method of claim 1, wherein in step two, when the examiner cannot clearly or can clearly observe the current icon and the difference between the current icon and his own vision is large, the adjustment assembly can be adjusted by the adjustment handle, so as to adjust the size of the icon until the examiner feels that the size of the current icon matches his own vision, and then the information of the current icon is answered.

3. The method of claim 2, wherein the step three includes: the adjusting component judges whether the answer of the detector is correct or not according to the chart information displayed by the current display screen, so that the adjusting component is adjusted correspondingly.

4. The method as claimed in claim 3, wherein when the examiner answers the question incorrectly, controlling the first linear adjusting component and the second linear adjusting component to work, increasing the icon, enabling the detector to continue answering the icon information until the detector can answer the icon information correctly, controlling the display screen to randomly display the next icon, repeatedly acquiring the answer information sent by the examiner, when the examiner answers correctly for more than three times continuously, the current detection result is determined as the vision detection value of the examiner, if the examiner can not answer the correct answer for more than three times continuously, the first linear adjusting component and the second linear adjusting component are controlled to work to continuously enlarge the icon, and continuously repeating the detection for three times until the detector can continuously and correctly answer the information of the icon, wherein the current detection result is the vision detection value of the detector.

5. The method as claimed in claim 3, wherein when the examiner answers the questions correctly, the display screen displays a next icon at random, and repeatedly obtains the answer information sent by the examiner, and when the examiner answers correctly for more than three consecutive times, the first and second linear adjustment units are controlled to operate, the icon is further reduced, and the detection is further repeated for three consecutive times, until the examiner cannot answer the icon correctly, and the last detection result that cannot be answered correctly continuously is the detected vision value of the examiner.

Technical Field

The invention relates to the technical field of vision detection, in particular to a method for detecting vision by adopting a lens assembly.

Background

The ophthalmology examination is a very common health-type conventional examination, the main examination part is the eye, the examination items are divided into a plurality of types, including vision examination, color identification examination and the like, in the examination process, a doctor needs to use a plurality of examination tools and examination means, the examination tools or equipment are classified into different types and have various examination directions and ranges, and the ophthalmology information obtained according to the examination tools has reference value and significance.

At present, the eyesight test chart is usually used for testing whether the eyesight is short-sighted or not, and an azimuth symbol E is printed on the eyesight test chart; in the in-service use in-process, illuminate the visual detection table through the light, wait to detect the personnel of eyesight and stand in one side of visual detection table and keep certain distance, wait to detect the position symbol E orientation of visual detection board printing of personnel monocular observation to detect the visual condition of waiting to detect the personnel of eyesight, but this kind of setting up mode will adopt great place could guarantee to wait to detect the person and have certain distance with the visual detection table.

Disclosure of Invention

In view of the above problems, the present application provides a method for detecting eyesight by using a lens assembly to solve the technical problems in the related art.

The invention provides a method for detecting vision by adopting a lens assembly, which comprises the following steps:

firstly, a detector observes one eye through a detection port, the other eye is shielded, icons are randomly displayed through a display screen, and the icons displayed on the display screen are transmitted to the detection port through a plane reflector, a semi-transparent semi-reflecting mirror and a concave reflector;

secondly, the inspector selects to manually adjust the size of the icon according to the observation condition of the inspector and then answers the information of the icon or directly answers the information of the icon;

and step three, the adjusting component adjusts the icon according to the answer of the inspector.

Further, in the second step, when the current icon can not be observed clearly or can be observed clearly by the examiner and the difference between the current icon and the current vision situation of the examiner is large, the adjusting assembly can be adjusted through the adjusting handle, so that the size of the icon can be adjusted until the examiner feels that the size of the current icon conforms to the current vision situation of the examiner, and then the information of the current icon is answered.

Further, the third step includes: the adjusting component judges whether the answer of the detector is correct or not according to the chart information displayed by the current display screen, so that the adjusting component is adjusted correspondingly.

Further, when the examiner answers the question incorrectly, the first linear adjusting assembly and the second linear adjusting piece are controlled to work, the icon is enlarged, the examiner continues to answer the icon information until the examiner can answer the icon information correctly, the display screen is controlled to display a next icon at random, answer information sent by the examiner is repeatedly obtained, when the examiner answers the icon information correctly for more than three times continuously, the current detection result is determined to be the vision detection value of the examiner, if the examiner cannot answer the icon correctly for more than three times continuously, the first linear adjusting assembly and the second linear adjusting piece are controlled to work, the icon continues to be enlarged, the detection is continuously carried out for three times repeatedly, until the examiner can answer the icon information correctly continuously, and the current detection result is the vision detection value of the examiner.

Further, when the question is answered correctly by the inspector, the display screen is enabled to display a next icon at random, answer information sent by the inspector is obtained repeatedly, when the inspector answers correctly for more than three consecutive times, the first linear adjusting component and the second linear adjusting component are controlled to work, the icon is reduced continuously, the detection is carried out for three consecutive times, until the inspector can not answer the information of the icon correctly continuously, and the last detection result which can not be answered correctly continuously is the vision detection value of the inspector.

Furthermore, in order to accurately detect the eyesight by the method, the method for detecting the eyesight further comprises a lens assembly for detecting the eyesight, and the lens assembly comprises a box body, wherein a detection port communicated with the interior of the box body is formed in the box body, an icon assembly, a plane reflector, a semi-transparent semi-reflector and a concave reflector are arranged in the box body, the icon assembly comprises a display screen for displaying a detection icon, the reflecting surface of the plane reflector faces the display screen and can reflect the light emitted by the display screen to the concave reflector, and the semi-transparent semi-reflector is arranged on the light path reflected by the reflecting surface and can reflect the light reflected by the concave reflector to the port.

Further, the detection device also comprises a detection channel which is communicated with the detection port and the interior of the box body, and the direction of the light rays reflected by the semi-transparent semi-reflector is parallel to the detection channel.

Further, the propagation direction of the light reflected by the reflecting surface is parallel to the propagation direction of the light reflected by the concave reflecting mirror.

Further, the icon assembly further comprises an adjusting assembly arranged between the display screen and the plane mirror, and the adjusting assembly is used for adjusting the size of the icon irradiated on the plane mirror by the display screen.

Further, the regulating part includes first straight line regulating part, second straight line regulating part and certainly the display screen extremely convex lens and the concave lens that the direction of plane mirror set gradually, the regulation direction of first straight line regulating part, second straight line regulating part is parallel, first straight line regulating part is used for adjusting convex lens in between the concave lens, and convex lens with distance between the convex lens, second straight line regulating part is used for adjusting the display screen with distance between the convex lens.

Furthermore, the first linear adjusting assembly comprises a first adjusting screw rod rotatably arranged in the box body, a screw nut in threaded connection with the adjusting screw rod, and the screw nut is connected with the convex lens.

Further, the second linear adjusting piece comprises an electric telescopic rod, one end of the electric telescopic rod is connected to the display screen, and the other end of the electric telescopic rod is connected with the box body.

Further, still include that axial direction is on a parallel with the telescopic cylinder of the regulation direction of first straight line adjusting part, the telescopic cylinder is including a first section of thick bamboo and a second section of thick bamboo that the noose is connected, convex lens sets up first section of thick bamboo is kept away from the open position of a second section of thick bamboo, the display screen sets up inside a second section of thick bamboo, screw-nut with first section of thick bamboo is connected, electric telescopic handle with a second section of thick bamboo is connected.

The invention provides a lens component for eyesight detection, which is characterized in that a display screen is arranged for displaying a detection icon and transmitting light to a plane reflector, the plane reflector irradiates the light to a concave reflector through a semi-transparent semi-reflector, the concave reflector reflects the light to the semi-transparent semi-reflector and the light is reflected from a detection port through the semi-transparent semi-reflector, the axial distance can be stretched due to the principle of a concave mirror imaging light path, so that the detection effect of a longer distance can be simulated in a smaller range, a detected person can put eyes at the detection port for observation, the detection icon can be observed from the observation port, and the display icons with different sizes can be displayed through an icon component during the inspection, thereby realizing the eyesight detection of the detected person, and realizing the random switching of the detection icons through the method of displaying the detection icons through the display screen, the phenomenon of inaccurate detection caused by the fact that a person to be detected memorizes the detection icon is avoided.

In addition, when setting up concave surface speculum, semi-permeable half-reflecting mirror, display screen and plane mirror, through the angle between the control three, make the process the propagation direction of the light that the plane of reflection reflects with the process the propagation direction of the light that the concave surface speculum reflects parallels to can make the image of the demonstration icon that the person of examining observes at the detection mouth clear, be favorable to guaranteeing the inspection effect.

In addition, through setting up the icon subassembly to including concave lens, convex lens, the icon that makes the display screen show forms images through convex lens, then make light parallel shine on the plane mirror through concave lens refraction, through parallel arrangement first straight line regulating assembly and second straight line regulating part, realize adjusting the distance between concave lens and convex lens and the display screen, thereby can control the size of forming images through convex lens, thereby realize adjusting the size that shows the icon, can be with the size grow gradually or diminish that shows the icon through this kind of mode of setting, thereby can play better detection effect.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings.

Fig. 1 is a schematic structural view of a lens assembly for vision testing according to the present invention.

Fig. 2 is a schematic partial enlarged view of a portion a of a lens assembly for vision testing according to the present invention.

FIG. 3 is a schematic structural diagram of a control system in a lens assembly for vision testing according to the present invention.

Fig. 4 is a schematic flow chart of a method for detecting vision using the lens assembly.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Example one

The invention provides a method for detecting vision by adopting a lens assembly, and as a specific implementation mode, the method comprises the following steps:

the method comprises the following steps that firstly, a detector observes one eye through a detection port, the other eye shields the eye, icons are displayed randomly through a display screen, the detector observes one eye through the detection port, the other eye shields the eye, the icons are displayed randomly through the display screen, and the icons displayed on the display screen are reflected to the detection port through a plane mirror, a semi-transparent and semi-reflective mirror and a concave mirror;

secondly, the inspector selects to manually adjust the size of the icon according to the observation condition of the inspector and then answers the information of the icon or directly answers the information of the icon;

and step three, the adjusting component adjusts the icon according to the answer of the inspector.

Further, in the second step, when the current icon can not be observed clearly or can be observed clearly by the examiner and the difference between the current icon and the current vision situation of the examiner is large, the adjusting assembly can be adjusted through the adjusting handle, so that the size of the icon can be adjusted until the examiner feels that the size of the current icon conforms to the current vision situation of the examiner, and then the information of the current icon is answered.

Further, the third step includes: the adjusting component judges whether the answer of the detector is correct or not according to the chart information displayed by the current display screen, so that the adjusting component is adjusted correspondingly.

Further, when the examiner answers the question incorrectly, the first linear adjusting assembly and the second linear adjusting piece are controlled to work, the icon is enlarged, the examiner continues to answer the icon information until the examiner can answer the icon information correctly, the display screen is controlled to display a next icon at random, answer information sent by the examiner is repeatedly obtained, when the examiner answers the icon information correctly for more than three times continuously, the current detection result is determined to be the vision detection value of the examiner, if the examiner cannot answer the icon correctly for more than three times continuously, the first linear adjusting assembly and the second linear adjusting piece are controlled to work, the icon continues to be enlarged, the detection is continuously carried out for three times repeatedly, until the examiner can answer the icon information correctly continuously, and the current detection result is the vision detection value of the examiner.

Further, when the question is answered correctly by the inspector, the display screen is enabled to display a next icon at random, answer information sent by the inspector is obtained repeatedly, when the inspector answers correctly for more than three consecutive times, the first linear adjusting component and the second linear adjusting component are controlled to work, the icon is reduced continuously, the detection is carried out for three consecutive times, until the inspector can not answer the information of the icon correctly continuously, and the last detection result which can not be answered correctly continuously is the vision detection value of the inspector.

Example two

Further, in order to accurately detect vision by the above method, the method for detecting vision further comprises a lens assembly for vision detection, referring to fig. 1 and 2, as a specific embodiment, the lens component comprises a box body 1, a detection port 10 communicated with the interior of the box body 1 is arranged on the box body 1, an icon component 2, a plane reflector 11, a semi-transparent semi-reflecting mirror 12 and a concave reflector 13 are arranged in the box body 1, the icon assembly 2 comprises a display screen 21 for displaying the detected icon, the reflecting surface of the plane mirror 11 is arranged facing the display screen 21 and the reflecting surface 110 can reflect the light emitted from the display screen 21 to the concave reflecting mirror 13, the transflective mirror 12 is disposed on a light path reflected by the reflecting surface 110 and can reflect the light reflected by the concave mirror 13 to the port 10.

By arranging a display screen for displaying a detection icon and transmitting light to a plane mirror, the plane mirror irradiates the light to a concave mirror through a semi-transparent semi-reflecting mirror, the concave mirror reflects the light to the semi-transparent semi-reflecting mirror and the light is reflected by the semi-transparent semi-reflecting mirror and then exits from a detection port, and due to the principle of a concave mirror imaging light path, the axial distance can be stretched, so that the detection effect of a longer distance can be simulated in a smaller range, specifically, referring to a graph 3, which is a concave mirror imaging principle diagram, the distance from the detection port to the concave mirror 13 of a detector can be deduced to be R, the distance from the detection icon to the concave mirror 13 is L1, the distance from the concave mirror to the concave mirror through the concave mirror imaging is L2, the magnification times of the concave mirror is &, then the formula (1/L2) + (1/L1) is 2/R, and L2/L1, calculated, R2L 1L 2/(L1 + L2), when in detection, the actually required effect is L1 + R6 meters, so that L1 + R6 can be realized by adjusting the sizes of L1 and L, the distance between R and L1 can be effectively reduced by setting the values, the field for detection is reduced, when in detection, a detected person can put eyes at the detection port to observe, so that the detection icon can be observed from the observation port, and display icons with different sizes can be displayed through an icon assembly during detection, so that the detection of the eyesight of the detected person is realized, and the random switching of the detection icons can be realized by displaying the detection icons through a display screen, so that the phenomenon of inaccurate detection caused by the memory of the detected person on the detection icons is avoided.

Further, referring to fig. 1 and fig. 2, as a preferred embodiment, the detection device further includes a detection channel 101 communicating the detection port 10 with the inside of the case 1, and a direction of light reflected by the half-transparent mirror 12 is parallel to the detection channel 101.

Further, it can be understood that, when the icon observed at the detection port by the person to be detected is mainly from the light reflected by the concave reflector to the half-transparent half-reflective mirror, when the propagation direction of the light reflected by the reflection surface 110 is not parallel to the propagation direction of the light reflected by the concave reflector 13, the light reflected by the plane reflector to the half-transparent half-reflective mirror may be refracted to enter the detection port, thereby affecting the detection effect, and by making the propagation direction of the light reflected by the reflection surface 110 parallel to the propagation direction of the light reflected by the concave reflector 13, the occurrence of this phenomenon can be well avoided, thereby the detection effect can be improved, and when the concave reflector, the half-transparent mirror, the display screen and the plane reflector are arranged, by controlling the angles between the three, the three are fixed in the box body, so that the propagation direction of the light reflected by the reflecting surface is parallel to the propagation direction of the light reflected by the concave reflector, and an image of a display icon observed by a detector at a detection port is clear, thereby being beneficial to ensuring the inspection effect.

Further, referring to fig. 1 and 2, as a preferred embodiment, the icon assembly further includes an adjusting assembly 20 disposed between the display screen 21 and the plane mirror 11, and the adjusting assembly is configured to adjust the size of the icon illuminated on the plane mirror 11 by the display screen. Specifically, the icons with different sizes are displayed through adjustment of the adjusting assembly, and accordingly vision detection is achieved.

Further, referring to fig. 1 and fig. 2, as a specific embodiment, the adjusting assembly 20 includes a first linear adjusting assembly 202, a second linear adjusting member 203, and a convex lens 201 and a concave lens 202 sequentially arranged from the display screen 21 to the plane mirror 11, the adjusting directions of the first linear adjusting assembly 202 and the second linear adjusting member 203 are parallel, the first linear adjusting assembly 202 is used for adjusting the distance between the convex lens 201 and the concave lens 202, and the distance between the convex lens 201 and the convex lens 201, and the second linear adjusting member 203 is used for adjusting the distance between the display screen 21 and the convex lens 202.

The working principle is as follows: the display screen can display icons, the icons displayed on the display screen can be imaged through the convex lens, the distance between the convex lens and the concave lens is controlled to enable the imaged position to be located in the concave lens, then the light rays are enabled to be irradiated on the reflecting surface of the plane reflector in parallel through the concave lens, the plane reflector reflects the light rays and irradiates the concave reflector through the semi-transparent semi-reflecting mirror, the concave reflector reflects the light rays to the semi-transparent semi-reflecting mirror again and irradiates the detection port through the semi-transparent semi-reflecting mirror, when the size of the icons needs to be adjusted, the first linear adjusting assembly can be adjusted to adjust the distance between the concave lens and the convex lens and between the convex lens, the distance between the convex lens and the display screen can be adjusted through adjusting the second linear adjusting piece, the size imaged through the convex lens can be controlled, the size of the displayed icons can be adjusted, and the size of the displayed icons can be gradually increased or decreased through the setting mode, thereby, a better detection effect can be achieved.

Further, referring to fig. 1 and fig. 2, as a specific embodiment, the first linear adjustment assembly 202 includes a first adjustment screw 2021 rotatably disposed on the housing 1 and a screw nut 2022 screwed to the adjustment screw 2021, wherein the screw nut 2022 is connected to the convex lens 202.

Further, the second linear adjustment element 203 comprises an electric telescopic rod 2031, one end of the electric telescopic rod 2031 is connected to the display screen 21, and the other end of the electric telescopic rod 2031 is connected to the box 1.

Further, the telescopic tube 204 is further included, the axial direction of which is parallel to the adjusting direction of the first linear adjusting assembly 202, the telescopic tube 204 includes a first tube 2041 and a second tube 2042 which are connected in a sleeved manner, the convex lens 202 is disposed at an opening position of the first tube 2041 far away from the second tube 2042, the display screen 21 is disposed inside the second tube 2042, the lead screw nut 2022 is connected with the first tube 2041, and the electric telescopic rod 2031 is connected with the second tube 2042.

The adjusting mode is that when a smaller icon needs to be obtained, the first linear adjusting component and the second linear adjusting component can be adjusted to enable the distance between the convex lens and the display screen to be larger than twice of the focal length of the convex lens 202, and enable the distance between the convex lens and the concave lens to be between one focal length and two times of the focal length, thereby forming a reduced real image on the concave lens, when a larger icon is required, the first linear adjustment assembly and the second linear adjustment member can be controlled to make the distance between the convex lens and the display screen between the focal length of one time and the focal length of two times of the convex lens, and the distance between the convex lens and the concave lens is larger than the focal length of two times of the convex lens, thereby forming an enlarged real image on the concave lens, during detection, the first linear adjusting assembly and the second linear adjusting assembly can be gradually adjusted, so that the size of an image formed on the concave lens is controlled, and the size of the icon is adjusted.

The size of the icon can be linearly adjusted through the setting mode, so that the visual acuity can be more favorably detected in a refined mode, and the icon is presented through a display screen display mode.

EXAMPLE III

Further, referring to fig. 3, the present invention provides a lens assembly for vision testing, further comprising a control system, the control system comprising:

the storage module is used for storing image information of various icons and storing program information for adjusting the adjusting modes of the first linear adjusting component and the second linear adjusting component;

the adjusting module comprises an adjusting handle and is used for enabling a detector to adjust the size of the icon;

the execution module is used for acquiring the adjusting information of the adjusting module, transmitting the adjusting information to the storage module, and enabling the first linear adjusting assembly and the second linear adjusting piece to work according to the program information for adjusting the adjusting modes of the first linear adjusting assembly and the second linear adjusting piece, which is stored in the storage module, so that the distance between the convex lens and the display screen and the distance between the convex lens and the concave lens are adjusted, and the size of an icon is adjusted;

the acquisition module is used for acquiring the answer information of the detector and judging whether the detector answers correctly or not according to the chart information displayed by the current display screen;

if not, controlling the execution module to work, turning down the icon, and continuing to detect

If the answer is correct, enabling the display screen to randomly display the next icon, repeatedly acquiring answer information sent by the detector, and controlling the execution module to work to turn down the icon and continue to detect when the detector answers correctly for more than three times;

further, the acquisition module comprises a microphone and a second touch display screen; preferably, the microphone is used for acquiring voice information sent by the examiner, so as to acquire information answered by the examiner, the second touch display screen is used for displaying a plurality of pieces of chart information, one of the plurality of pieces of chart information is correct information, and the examiner can answer a question by selecting the chart information.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.