Visual skiascopy optometry unit
By setting a visual acuity bar and a retinoscopy mechanism on the electric refractometer, and utilizing offset, swinging, and rotating mechanisms, the problems of complex operation and low accuracy of existing retinoscopy methods are solved, achieving convenient, fast, and accurate refraction results.
Patent Information
- Application Number
- CN202423069453.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2034-12-12
AI Technical Summary
Existing retinoscopy methods are complex and cumbersome to operate, and have low accuracy, especially when the astigmatism is low, the test results are inaccurate. In addition, the heavy motorized refractometer head affects the clarity of the light band reflection.
A visual retinoscopy instrument was designed, comprising an electric refractometer, a vision bar, and a retinoscopy mechanism. An offset mechanism is provided between the vision bar and the electric refractometer, and the retinoscopy mechanism has a swing and rotation mechanism. The lens offset and light strip projection are achieved by motor drive.
It achieves more convenient and faster operation, more accurate inspection results, and maintains high precision in light band reflection clarity even in low astigmatism.
Smart Images
Figure CN223914122U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of medical devices, in particular to a visual detection optometry instrument. BACKGROUND
[0002] At present, most detection optometry methods are usually trial frame plug-in and handheld strip light detection methods. This method needs to manually replace the trial lens, one hand replaces the lens, and the other hand rotates the detection lens light strip, which is quite complex and tedious, slow, and the accuracy is also affected. If the detection optometry is performed using the optometry combination table, since the electric optometry head is thick and heavy, the eyes need to look through the viewing hole to the distance, so when using the strip light detection lens to check, the light strip reflection will not be so clear, especially when the power is below -1.00D or above -8.00D and the low astigmatism, the detection accuracy is not accurate because the light strip direction is not accurate, so the test result will be affected. CONTENT OF THE UTILITY MODEL
[0003] In order to solve the above technical problems, the purpose of the present application is to provide a convenient, fast and accurate visual detection optometry instrument.
[0004] The technical scheme provided by the present application is as follows:
[0005] A visual detection optometry instrument, comprising an electric optometry head, a visual rod, a detection mechanism; the visual rod is installed on the electric optometry head and can be placed in front of the electric optometry head, and an offset mechanism is arranged between the electric optometry head and the visual rod to enable the visual rod to offset to the horizontal two sides; the detection mechanism comprises a body and a detection lens; the body is installed on the visual rod and is arranged at a distance from the electric optometry head, and a swing mechanism is arranged between the body and the visual rod to enable the body to swing left and right and front and back; the detection lens is installed in the body, and the body is further provided with a rotating mechanism to enable the detection lens to rotate.
[0006] Preferably, the offset mechanism can move the visual rod a certain angle to the horizontal two sides with the center as the reference, offset to the right side to drive the detection lens to be located 15 degrees outside the front of the right eye when checking the right eye, and offset to the left side to drive the detection lens to be located 15 degrees outside the front of the left eye when checking the left eye.
[0007] Preferably, the offset mechanism comprises an intermediate gear, a left gear and a right gear, the left gear and the right gear are installed on the electric optometry head and are respectively engaged with the intermediate gear, the intermediate gear is connected with the visual rod, and a limiting portion is arranged to enable the intermediate gear to drive the visual rod to rotate only within a certain angle.
[0008] Preferably, the visual rod and the electric optometry head are further provided with an upward turning mechanism to enable the visual rod to turn upward and be clamped above the electric optometry head.
[0009] Preferably, the rotating mechanism comprises a first motor, a planetary gear mechanism, the planetary gear mechanism being connected with the first motor and the reflex camera lens, so that the first motor drives the reflex camera lens to rotate 360 degrees through the planetary gear mechanism, and the reflex camera lens can be stopped at multiple preset directions, so that the reflex camera lens projects a light band to the eye at multiple preset angles.
[0010] Preferably, the swinging mechanism comprises a second motor and a swinging gear mechanism, the second motor being connected with the swinging gear mechanism, so that the reflex camera lens swings left and right and swings forward and backward through the swinging gear mechanism.
[0011] Preferably, the control mechanism is further connected with the rotating mechanism and the swinging mechanism, so as to control the movement of the rotating mechanism and the swinging mechanism, the control mechanism comprising a processing mechanism and a control button, the processing mechanism being connected with the rotating mechanism, the swinging mechanism and the control button, so as to control the movement of the rotating mechanism and the swinging mechanism according to the instruction of the control button.
[0012] Preferably, the processing mechanism is provided with an analysis module for providing the operator with an adjustment luminosity suggestion according to the collected reflex results.
[0013] Preferably, the eye magnification display mechanism is further provided.
[0014] Preferably, the eye magnification display mechanism comprises a camera located at the rear view hole of the electric phoropter and an electronic screen implanted in front of the electric phoropter, or a camera located at the rear view hole of the electric phoropter and a smart terminal screen connected with the camera, or a magnifying glass located at the rear view hole of the electric phoropter and a display screen implanted in front of the electric phoropter, so that the eye image magnified by the magnifying glass is refracted and displayed on the display screen.
[0015] Compared with the prior art, the visual reflex examination phoropter of the utility model can make the operation more convenient and fast and the examination result more accurate through the setting of the visual acuity rod installed on the electric phoropter, the reflex mechanism comprising a body and a reflex camera lens installed on the visual acuity rod, the setting of the offset mechanism between the visual acuity rod and the electric phoropter, the setting of the swinging mechanism between the body and the visual acuity rod, and the setting of the rotating mechanism of the body. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only represent some of the embodiments described in the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.
[0017] Figure 1 The front view of the visual examination optometry instrument according to the present application;
[0018] Figure 2 The side view of the visual examination optometry instrument according to the present application; Figure 1 The top view of the visual examination optometry instrument according to the present application.
[0019] Figure 3 The top view of the visual examination optometry instrument according to the present application. Figure 1 The top view of the visual examination optometry instrument according to the present application. DETAILED DESCRIPTION
[0020] In order to make the technical personnel in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are only some of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0021] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or indirectly on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0022] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the drawings shown, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0023] In addition, the terms "first", "second", etc. are used only for descriptive purposes and should not be construed as implying or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.
[0024] It should be understood that the structures, proportions, sizes, etc. shown in the drawings of the present application are only used to cooperate with the disclosed content, to be understood and read by those skilled in the art, and are not used to limit the conditions for implementing the present application, so they do not have technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and purpose that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application.
[0025] As shown in Figures 1 to 3 The utility model embodiment provides a visual inspection optometry instrument, it mainly includes electric optometry head 1, vision rod 2, inspection mechanism 3.
[0026] In the embodiment, the electric optometry head 1 is reformed on the basis of the existing electric optometry head 1. The electric optometry head 1 is provided with an eyeball magnification display mechanism for magnifying and displaying the eyeball image. The eyeball magnification display mechanism includes a camera 11 located at the rear sight hole of the electric optometry head 1 and an electronic screen 12 implanted in the front window of the front face of the electric optometry head 1. The camera 11 preferably adopts a high-definition camera, and the electronic screen 12 preferably adopts a high-definition electronic screen. The camera 11 transmits the real-time content of the eyeball 4 to the electronic screen 12, and the electronic screen 12 magnifies the image, so that the operator can observe the magnified real-time situation of the front surface of the eyeball 4.
[0027] In other embodiments, the eyeball magnification display mechanism can also use other ways, for example, the collection end is still a camera located at the rear sight hole of the electric optometry head 1, but the display end can be a smart terminal screen connected with the camera, that is, the content collected by the camera is directly imported into the screen of the smart terminal through the data line. It can also include a magnifying glass located at the rear sight hole of the electric optometry head 1 and a display screen implanted in the front window of the front face of the electric optometry head 1, so that the eyeball image magnified by the magnifying glass is refracted and displayed on the display screen. In this way, the display screen can use a common screen, and does not need an electronic screen, but the image may not be as clear as the electronic screen.
[0028] In the embodiment, the vision rod 2 is installed on the electric optometry head 1 and can be placed in front of the electric optometry head 1. The length of the vision rod 2 can be about 60 cm. A vision rod 2 is also provided between the electric optometry head 1 and the electric optometry head 1, which is used to turn the vision rod 2 upward (as Figure 2The left arrow shows) and the upturn mechanism (not shown) buckled above the electric optometry head 1, so that the vision rod 2 is lowered to the horizontal state when in use, and is turned up and buckled above the electric optometry head 1 when not in use, so as to save space. Moreover, the vision rod 2 and the electric optometry head 1 are provided with the offset mechanism 21 which enables the vision rod 2 to offset to the horizontal two sides. The offset mechanism 21 enables the vision rod 2 to move a certain angle (15-25 degrees, such as Figure 1 The left arrow shows) and the upturn mechanism (not shown) buckled above the electric optometry head 1, so that the vision rod 2 is lowered to the horizontal state when in use, and is turned up and buckled above the electric optometry head 1 when not in use, so as to save space. Moreover, the vision rod 2 and the electric optometry head 1 are provided with the offset mechanism 21 which enables the vision rod 2 to offset to the horizontal two sides. The offset mechanism 21 enables the vision rod 2 to move a certain angle (15-25 degrees, such as
[0029] In the embodiment, the shadowing mechanism 3 includes the body 31 and the shadowing lens 32. The body 31 is installed on the vision rod 2, and is provided with a certain distance (the distance can be set to 50 cm) from the electric optometry head 1, and is provided with the swing mechanism 33 which enables the body 31 to swing left and right (such as Figure 3 The lower arrow shows) and swing forward and backward (such as Figure 2 The right arrow shows) between the vision rod 2. The shadowing lens 32 is installed in the body 31, and the body 31 is further provided with the rotation mechanism (not shown) which enables the shadowing lens 32 to rotate (such as Figure 3 The upper arrow shows). Specifically, in the embodiment, the rotation mechanism includes the first motor and the planetary gear mechanism. The planetary gear mechanism connects the first motor and the shadowing lens 32 (for example, the first motor can be connected by the planetary wheel, the sun gear is connected to the shadowing lens 32, and the gear ring is fixed on the body 31), so that the first motor drives the shadowing lens 32 to rotate 360 degrees through the planetary gear mechanism, and can make the shadowing lens 32 stop at multiple preset directions (for example, 90° direction, 180° direction, 45° direction, 135° direction), so that the shadowing lens 32 projects a light band to the eye at multiple preset angles (90°, 180°, 45°, 135°), and checks the cornea. Of course, in other embodiments, the rotation mechanism can adopt other structures, as long as it can rotate the shadowing lens 32 by a certain angle.
[0030] Specifically, in this embodiment, the swing mechanism 33 includes a second motor and a swing gear mechanism (the swing gear mechanism can be composed of a plurality of gears in different directions, for example, a structure similar to an electric fan, which is not described here). The second motor is connected to the swing gear mechanism, which drives the body 31 and in turn drives the viewfinder lens 32 to swing left and right and front and back, so that the light band projected by the viewfinder lens 32 performs vertical or horizontal swinging. Of course, in other embodiments, the swing mechanism can adopt other structures as long as it can make the viewfinder lens 32 swing left and right and front and back.
[0031] In this embodiment, a control mechanism is also included, which is connected to the rotation mechanism and the swing mechanism to control the movement of the rotation mechanism and the swing mechanism. In this embodiment, the control mechanism includes a processing mechanism, control buttons (including rotation buttons and swing buttons), and the processing mechanism is connected to the rotation mechanism, the swing mechanism 33, and the control buttons to control the movement of the rotation mechanism or the swing mechanism 33 according to the instructions of the rotation buttons or the swing buttons. In this embodiment, a computer 5 (or other intelligent terminal) is used for control, which includes a host, a visual screen, and a control keyboard, and the control buttons directly use the control keyboard (a separate remote controller can also be configured). The processing mechanism can be provided with an analysis module for providing the operator with suggestions for adjusting the light intensity according to the collected view results.
[0032] During the examination, the vision rod 2 is lowered, the viewfinder lens 32 first examines the right eye, the vision rod 2 swings to the right by 15°, and a light band is projected at a distance of 50 cm in front of the eye. The control keyboard is used to make the viewfinder lens 323 perform a 60-degree rotation and a four-directional stop operation, and when the confirmation direction is found, the swing button is turned on, the view results are collected by the electric optometry head 1 and the viewfinder lens 32, and the view results are transmitted to the processing mechanism, the analysis module analyzes the view results and provides the operator with suggestions for adjusting the light intensity, and prompts the optometrist to add positive or negative or astigmatic lenses. For example, if the collected view result is a forward movement, it means that a positive lens is added to correct the hyperopia; if the view result is a reverse movement, a negative lens is added to correct the myopia; if the thickness is inconsistent and the view result is a shear movement or a rupture phenomenon, it means that a cylindrical lens is used to correct astigmatism; if the speed of the light band is faster and the brightness is brighter, and the light band quickly fills the pupil area, it means that the neutral state is reached. After the analysis module analyzes the view movement data through simple calculation, the corresponding recommended spherical and cylindrical light intensity is given on the visual screen of the processing mechanism, and then the control keyboard is used to adjust the light intensity to reach the neutral state.
[0033] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A visualizing phoropter, characterized in that, The utility model provides an electric optometry head, vision rod, shadow detection mechanism, the vision rod is installed on electric optometry head, can place in electric optometry head front, and with electric optometry head between is equipped with and makes vision rod can offset to horizontal both sides offset mechanism, the shadow detection mechanism includes body and shadow detection lens, the body is installed on vision rod, is equipped with distance from electric optometry head, and with vision rod between is equipped with and makes body can swing left and right and swing back and forth swing mechanism, the shadow detection lens is installed in the body, and the body is also equipped with and makes shadow detection lens can autorotation rotation mechanism.
2. The phoropter according to claim 1, wherein, The offset mechanism can make the vision rod move a certain angle to the horizontal both sides with the center as the reference, offset to the right side to drive the shadow detection lens to be located outside the right eye front 15 degrees when checking the right eye, offset to the left side to drive the shadow detection lens to be located outside the left eye front 15 degrees when checking the left eye.
3. The phoropter according to claim 2, wherein, The offset mechanism includes intermediate gear, left gear, right gear, the left gear, right gear is installed on electric optometry head, and is engaged with intermediate gear respectively, the intermediate gear is connected with vision rod, and is equipped with limit portion and makes intermediate gear drive vision rod only rotate within a certain angle.
4. The phoropter according to claim 1, wherein, The vision rod and electric optometry head are also equipped with the upper turnover mechanism that makes the vision rod overturn upwards and is buckled above electric optometry head.
5. The phoropter according to claim 1, wherein, The rotation mechanism includes first motor, planetary gear mechanism, the planetary gear mechanism is connected with first motor and shadow detection lens, makes first motor drive shadow detection lens 360 degrees autorotation through planetary gear mechanism, and can make shadow detection lens stop in multiple preset directions, so that shadow detection lens projects the light band with multiple preset angles to the eye.
6. The phoropter according to claim 1, wherein, The swing mechanism includes second motor, swing gear mechanism, the second motor is connected with swing gear mechanism, and drives shadow detection lens swing left and right and swing back and forth through swing gear mechanism.
7. The phoropter according to claim 1, wherein, Also include control mechanism, the control mechanism is connected with rotation mechanism and swing mechanism to control rotation mechanism and swing mechanism movement, the control mechanism includes processing mechanism, control button, the processing mechanism is connected with rotation mechanism, swing mechanism, control button to control rotation mechanism and swing mechanism movement according to the instruction of control button.
8. The phoropter according to claim 7, wherein, The processing mechanism is equipped with the analysis module for providing the operator with the adjustment luminosity suggestion according to the collected shadow detection result.
9. The phoropter according to claim 1, wherein, Also include eyeball amplification display mechanism, for amplifying and displaying the eyeball image.
10. The phoropter according to claim 9, wherein, The eyeball amplification display mechanism includes the camera located at the rear view hole of electric optometry head and the electronic screen implanted in the front window of electric optometry head, or includes the camera located at the rear view hole of electric optometry head and the smart terminal screen connected with the camera, or includes the magnifying glass located at the rear view hole of electric optometry head and the display screen implanted in the front window of electric optometry head, so that the eyeball image amplified through the magnifying glass is refracted and displayed on the display screen.