Portable eye-test device

Abstract

This portable eye-test device comprises: an eye-test case having a face-seating part provided with an inner accommodating space and covering the eyes of a user; a display unit disposed on one side of the inner accommodation space of the eye-test case to provide a screen for an eyesight test; reflectors for reflecting the screen-light output from the screen of the display unit to the eyes of the user; a user input unit for inputting user commands; and a control unit for storing eyesight test images including an eyesight test guide for the eyesight test of a user, and controlling the display unit so as output the eyesight test images when user commands for the eyesight test are input into the user input unit.

Description

Portable eye examination device

[0001] The present invention relates to a portable eye examination device, and more specifically, to a portable eye examination device that can be carried personally.

[0002] Due to the current social trend of frequent computer and smart device usage, vision deterioration and related issues are occurring, leading to an increase in the population requiring correction for visual defects such as myopia, astigmatism, and presbyopia. When it is necessary to check one's vision or undergo an eye examination, one visits an ophthalmologist or optician to have their vision and eyes checked using examination equipment. Furthermore, based on the test results, the appropriate prescription is prescribed, and solutions are provided for vision correction devices such as contact lenses or glasses, as well as for corrective eye surgery and treatment of eye diseases.

[0003] People with disabilities who have difficulty moving, the elderly, residents of remote islands and mountainous areas, and patients with eye diseases who require frequent vision and eye examinations face inconveniences in visiting ophthalmologists or opticians.

[0004] Conventional ophthalmic devices are expensive medical equipment worth tens of millions of won, characterized by their large size and length, the need for a table to fix them in place, and the restriction on mobility due to the requirement of separate space for installation.

[0005] To address these problems and limitations, a portable head-mounted ophthalmic device was developed that allows anyone to perform a vision test by attaching a smartphone.

[0006] Therefore, the objective of the present invention is to provide a portable eye examination device that is easy to carry due to reduced size and length, and thereby to provide a portable eye examination device capable of supporting non-face-to-face (contactless) medical treatment without visiting an ophthalmologist or an optician.

[0007] A portable eye examination device according to the present invention for achieving the above objective comprises: an eye examination case having an internal receiving space and a face-seating portion that covers and settles on the user's eye; a display unit disposed on one side of the internal receiving space of the eye examination case and providing a screen for a vision test; a reflector unit that reflects screen light output from the display unit screen onto the user's eyeball; a user input unit for inputting user commands; and a control unit that stores a vision test image including a vision test guide for the user's vision test, and controls the display unit so that the vision test image is output when a user command for a vision test is input into the user input unit. Since the vision test image output from the display unit can be reflected by the reflector unit to secure distance, the size and length can be reduced compared to existing eye examination devices, thereby improving the user's portability.

[0008] Here, the system further includes a speaker that outputs the vision test guidance as voice, and the control unit controls the speaker to output the vision test guidance as voice in response to the vision test guidance being displayed in the vision test video, which is desirable as it can improve the convenience of the user performing the vision test.

[0009] Furthermore, the above-mentioned reflective parts are provided in multiple locations within the internal receiving space of the eye examination case, and the control unit controls the display unit so that a preset screen light output intensity corresponding to the distance of the multiple reflective parts is output. Since the reflective parts are provided in multiple locations, it is desirable to increase the screen light output intensity as much as the distance the screen light of the visual acuity test image travels to the user's eyeball increases.

[0010] Herein, the system further includes an examination camera positioned in the internal receiving space of the eye examination case to photograph the user's eyeball, and the control unit stores multiple disease images for multiple eye diseases, compares the user's eye image captured by the examination camera with the multiple disease images, and if a disease image with a similarity level greater than a preset value is identified as a result of the comparison, it is desirable to be able to photograph the eyeball while performing a visual acuity test and to identify eye diseases using the eye image.

[0011] In addition, if a lens unit including a convex lens and a concave lens is further included to be positioned on the output path of the screen light of the display unit to magnify and reduce the vision test image, it is desirable because although it is difficult to secure the distance for the screen light of the vision test image to reach the user's eye due to the small internal accommodation space, the distance can be secured by using the lens unit.

[0012] Here, the convex lens and the concave lens are movable with respect to the eye examination case, and further include a lens movement drive unit for driving the movement of the convex lens and the concave lens; and the control unit is preferably able to increase or decrease the object size of the vision test image by moving the lens so that the object size of the vision test image is adjusted for the user's vision test.

[0013] It is desirable that the control unit further includes a microphone for collecting the user's voice, and stores at least one voice for each of a plurality of objects in the vision test image, controls the output of the vision test image, compares the voice for the outputted object with the user's voice collected by the microphone, and if the comparison result determines that they are identical, controls the output of the next object that is smaller than the outputted object, thereby allowing the user to conveniently perform a vision test using voice.

[0014] According to the present invention, since the distance can be secured by reflecting the vision test image output from the display unit to the reflective unit, the size and length can be reduced compared to existing eye examination devices, thereby improving the user's portability.

[0015] In addition, outputting vision test instructions as voice can improve the convenience of users performing the vision test.

[0016] In addition, since multiple reflective sections are provided, there is an effect of increasing the screen light output intensity by the amount of distance the screen light of the visual acuity test image travels to the user's eye.

[0017] In addition, it is possible to photograph the eyeball while performing a vision test, and it is effective to identify eye diseases using the eyeball images.

[0018] In addition, although it is difficult to secure the distance for the screen light of the visual acuity test image to reach the user's eye due to the small internal receiving space, the lens part can be used to secure the distance.

[0019] In addition, by moving the lens to increase or decrease the size of objects in the vision test image so that they are visible to the user, it has the effect of enabling an accurate vision test.

[0020] In addition, it has the effect of enabling the user to read objects displayed in the vision test images, thereby allowing the vision test to be performed smoothly and conveniently.

[0021] FIG. 1 is an example of a user wearing a portable eye examination device according to the present invention.

[0022] Figure 2 is an example diagram showing how the screen light of the visual acuity test image of the display unit reaches the eyeball.

[0023] Figure 3 is an example of providing voice guidance for a vision test.

[0024] Figure 4 is an example of an inspection camera that photographs a user's eyeball.

[0025] Figure 5 is a diagram showing the movement of the lens.

[0026] Figure 6 is an example of conducting a visual acuity test using voice.

[0027] Figure 7 is a control block diagram of a portable eye examination device.

[0028] Hereinafter, a portable eye examination device (1) according to a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

[0029] FIG. 1 is an example diagram of a user wearing a portable eye examination device (1) according to the present invention, FIG. 2 is an example diagram of a screen light of a vision test image of a display unit (20) reaching the eyeball, FIG. 3 is an example diagram of a vision test guide provided by voice, FIG. 4 is an example diagram of an examination camera (70) that photographs the user's eyeball, FIG. 5 is an operation diagram of a lens (82) moving, FIG. 6 is an example diagram of a vision test conducted using voice, and FIG. 7 is a control block diagram of the portable eye examination device (1).

[0030] The configuration of the portable eye examination device (1) will be explained with reference to FIGS. 1 to 7.

[0031] The portable eye examination device (1) includes an eye examination case (10), a display unit (20), a reflection unit (30), a user input unit (40), a speaker (50), a microphone (60), an inspection camera (70), a lens unit (80), a lens movement driving unit (90), a communication unit (100), and a control unit (110).

[0032] The eye examination case (10) includes a case body (11), a face-seating portion (12), a transparent window (13), and a fixing band (14).

[0033] The case body (11) is shaped like thick glasses that are worn on the user's face, and an internal receiving space is formed.

[0034] The facial seating portion (12) forms an internal receiving space and is seated while covering the user's eyes.

[0035] The transparent window (13) is supported by the case body (11) and can be placed in the face seating area (12).

[0036] The fixing strap (14) can be made of a strap that can be supported behind the user's head while connected to one side and the other side of the case body (11). The fixing strap (14) can have elasticity like a rubber band.

[0037] The display unit (20) is positioned on one side of the internal receiving space of the eye examination case (10) and provides a screen for a vision test. The display unit (20) displays an image based on an image signal processed by image processing. The method of implementing the display unit (20) is not limited and can be implemented using various display methods such as liquid crystal, plasma, light-emitting diode, organic light-emitting diode, surface conduction electron-emitter, carbon nanotube, nanocrystal, etc.

[0038] The display unit (20) may additionally include additional configurations depending on the implementation method. For example, if the display unit (20) is a liquid crystal type, the display unit (20) includes a liquid crystal display panel (not shown), a backlight unit (not shown) that supplies light thereto, and a panel driving board (not shown) that drives the panel (not shown). The display unit (20) may display a voice recognition result as information regarding the recognized voice. Here, the voice recognition result can be displayed in various forms such as text, graphics, and icons, and the text includes characters and numbers. The display unit (20) may further display candidate commands and application information based on the voice recognition result. The user can check whether the voice has been correctly recognized by the voice recognition result displayed on the display unit (20), and can select a command corresponding to the voice spoken by the user from among the displayed candidate commands by operating the user input unit (40) provided on the remote control, or select and check information related to the voice recognition result.

[0039] The reflective part (30) is configured to reflect screen light output from the display part (20) screen to the user's eyeball. The reflective part (30) may be provided in multiple locations within the internal receiving space of the eye examination case (10). The reflective part (30) includes a reflection movement driving part (31).

[0040] The reflection movement drive unit (31) can drive the reflection unit (30) to rotate and move relative to the case body (11).

[0041] The user input unit (40) inputs user commands. The user input unit (40) can receive user touch input or remote input using a remote controller and transmit it to the corresponding control unit (110). Additionally, the user input unit (40) can receive voice input spoken by the user and transmit the voice signal to the control unit (110). In that case, the user input unit (40) can be implemented, for example, as a microphone. The user input unit (110) may also perform signal processing on the received voice signal itself. However, the form of user input that the user input unit (110) can receive is not limited to this, and user input such as motion recognition can also be received.

[0042] The speaker (50) can output a voice message for the vision test.

[0043] The microphone (60) can collect the user's voice.

[0044] The inspection camera (70) is placed in the internal receiving space of the eye examination case (10) and can photograph the user's eyeball. The inspection camera (70) includes a microscope camera (71) and a retinal camera (72).

[0045] The microscope camera (71) may be a camera equipped with a slit lamp microscope for inspecting the surface of the eye.

[0046] The retinal camera (72) may be a camera capable of screening for arteriosclerosis, diabetic disease, and hypertension by examining the retina and optic nerve of the eye.

[0047] The lens portion (80) includes a convex lens (81) and a concave lens (82).

[0048] The convex lens (81) is positioned on the output path of the screen light of the display unit (20) to magnify the vision test image. The convex lens (81) may be movable relative to the eye examination case (10).

[0049] The concave lens (82) is positioned on the output path of the screen light of the display unit (20) to reduce the visual acuity test image. The concave lens (82) may be movable relative to the examination case (10).

[0050] The lens movement drive unit (90) can move the convex lens (81) and the concave lens (82).

[0051] The communication unit (100) can perform wireless communication, and the wireless communication includes at least one of infrared communication, RF, Zigbee, and Bluetooth. The communication unit (100) receives a video signal and transmits it to the control unit (110) to be described later, and can be implemented in various ways corresponding to the specifications of the received video signal and the implementation form of the user terminal. For example, the communication unit (100) can wirelessly receive an RF (radio frequency) signal transmitted from a broadcasting station (not shown), or receive a video signal according to composite video, component video, super video, SCART, HDMI (high definition multimedia interface) specifications, etc. via a wired connection. If the video signal is a broadcast signal, the communication unit (100) may include a tuner that tunes the broadcast signal by channel.

[0052] The control unit (110) stores a vision test image including a vision test guide for a user's vision test, and controls the display unit (20) so that the vision test image is output when a user command for a vision test is input into the user input unit (40).

[0053] The control unit (110) can control the speaker (50) to output the vision test guidance as voice in response to the vision test guidance being displayed in the vision test video.

[0054] The control unit (110) can control the display unit (20) so that a preset screen light output intensity of the display unit (20) corresponding to the distance of a plurality of reflective units (30) is output.

[0055] The control unit (110) stores multiple disease images for multiple eye diseases, compares the user's eye image captured by the inspection camera (70) with the multiple disease images, and can identify disease images with a similarity level greater than a preset level as a result of the comparison.

[0056] Here, the control unit (110) may transmit the user's eye image captured by the inspection camera (70) to a pre-configured ophthalmologist's terminal so that a diagnosis can be made.

[0057] The control unit (110) can control the lens movement drive unit (90) so that the object size of the vision test image for the user's vision test is adjusted.

[0058] The control unit (110) stores at least one voice for each of the multiple objects of the vision test image, controls the output of the vision test image, compares the voice of the outputted object with the user voice collected by the microphone (60), and if the comparison result determines that they are the same, controls the output of the next object that is smaller than the outputted object.

[0059] Here, a vision test can be performed by downloading and installing an application for a vision test on a smartphone, which is a user terminal, and then displaying a vision test video and a vision test guide while the communication unit (100) and the user terminal are paired. In this case, the output and collection of voice can be performed on the user terminal. If there is no user terminal, the vision test can be performed independently. Even when the vision test is performed independently, the test information can be configured to be transmitted to the user terminal and to the pre-configured terminal of a doctor or guardian.

[0060] Figure 2 is an example of the screen light of the visual acuity test image of the display unit (20) reaching the eyeball.

[0061] It is shown that the screen light of the vision test image output from the display unit (20) is reflected by the lower reflector (30) and the left reflector (30) and then reaches the user's eye through the transparent window (13). In this way, the vision test distance can be secured through two reflections.

[0062] Figure 3 is an example of providing voice guidance for a vision test.

[0063] When the user starts the vision test after wearing the portable eye examination device (1), the vision test is conducted by providing voice guidance along with the phrase "Please close your left eye" in the vision test image.

[0064] Figure 4 is an example of an inspection camera (70) that photographs the user's eyeball.

[0065] The screen light of the vision test image output from the display unit (20) is reflected by the lower reflector (30) and the left reflector (30) and then reaches the user's eye through the transparent window (13), and a microscope camera (71) and a retinal camera (72) are positioned on the left side to photograph the user's eye. The eye may be photographed during the vision test, or the eye may be photographed immediately for an eye disease examination. When the eye is photographed, the display unit (20) may output a bright screen light to ensure that the eye is photographed properly.

[0066] FIG. 5 is a diagram showing the movement of the lenses (81, 82).

[0067] It shows that the concave lens (82) moves from position a to position b. By doing so, the size of the object in the visual acuity test image is reduced, and a visual acuity test can be performed using this.

[0068] Figure 6 is an example of conducting a visual acuity test using voice.

[0069] When the user reads object (A) in the visual acuity test video during a visual acuity test, the voice is analyzed to determine if it is identical to the displayed object; if it is identical, since the visual acuity corresponding to the displayed object has been confirmed, an object smaller than the displayed object is displayed to allow the visual acuity test to proceed.

[0070] Modifiable embodiments other than the above embodiments are described.

[0071] The display unit is positioned on the upper inner side of the internal receiving space of the case body when the user wears the eye examination case, and the reflective unit is positioned on the lower side and on the side far from the user's eyeball, so that the screen light of the display unit is reflected from the reflective unit on the lower side and then reflected from the reflective unit on the side far from the user's eyeball and directed toward the user's eyeball.

[0072] Here, the display unit is positioned on either the inner right or inner left side of the internal receiving space of the case body when the user is wearing the eye examination case, and the reflective unit is positioned on the other side, the inner upper side, the inner lower side, and the side far from the user's eyeball. Thus, the screen light of the display unit is reflected from the reflective unit positioned on either the inner right or inner left side of the internal receiving space of the case body, and then reflected from the reflective units positioned on the other side, the inner upper side, the inner lower side, and the side far from the user's eyeball, and directed toward the user's eyeball. By doing so, a longer distance for visual acuity testing can be secured.

[0073] Lenses are placed between the display part and the reflective part, and between the reflective parts, to ensure a distance for the screen light to reach the user's eyeball. Only one lens may be placed, or two lenses may be placed depending on the internal space of the case body.

[0074] The control unit can rotate a reflector positioned far from the user's eyeball so that when examining the user's left eye, the screen light of the visual acuity test image is directed toward the user's left eye, and when examining the user's right eye, the reflector can rotate so that the screen light of the visual acuity test image is directed toward the user's left eye.

[0075] The inspection camera may also be coupled to the case body so as to rotate for inspection of the user's left and right eyes, and may further include a camera rotation drive unit that causes the inspection camera to rotate relative to the case body.

[0076] The control unit stores contact lens information based on visual acuity, and when the user's visual acuity test is completed, it can provide the contact lens information based on the user's visual acuity to the user.

[0077] The control unit can train an AI-based disease estimation model through machine learning that outputs a diagnostic disease for each image. The AI-based disease estimation model is an algorithm that receives first and second fundus images as input and outputs a value corresponding to the type of disease, and can be any one of an Artificial Neural Network, Support Vector Machine (SVM), Decision Tree, or Random Forest. The Artificial Neural Network is primarily used in deep learning and is a statistical learning algorithm inspired by neural networks in machine learning and biology; it can be a Convolutional Neural Network that includes a feature extraction neural network and a classification neural network. In this case, the Convolutional Neural Network is a type of deep feedforward artificial neural network used to analyze visual images, and can be divided into the process of extracting image features and classifying classes, and can recognize images based on the extracted features of a specific image.

[0078] Due to the above-described portable eye examination device (1), the visual acuity test image output from the display unit can be reflected to the reflective unit to secure distance, thereby reducing the size and length compared to conventional eye examination devices and improving the user's portability.

[0079] In addition, the convenience of the user performing the vision test can be improved by outputting the vision test guidance as voice.

[0080] In addition, since multiple reflective parts are provided, the screen light output intensity can be increased as the distance the screen light of the visual acuity test image travels to the user's eye increases.

[0081] In addition, the eyeball can be photographed while performing a vision test, and eye diseases can be identified using the eyeball images.

[0082] In addition, due to the small internal space, it is difficult to secure the distance for the screen light of the visual acuity test image to reach the user's eye, but the distance can be secured by using the lens part.

[0083] In addition, by moving the lens to increase or decrease the size of objects in the vision test image so that they are visible to the user, an accurate vision test can be performed.

[0084] In addition, the user can read the objects shown in the vision test image, enabling the vision test to be performed smoothly and conveniently.

Claims

1. In a portable eye examination device, An eye examination case having an internal receiving space and a facial seating portion that covers and settles over the user's eyes; A display unit positioned on one side of the internal receiving space of the above-mentioned eye examination case to provide a screen for a vision test; A reflector that reflects screen light output from the above-mentioned display unit screen to the user's eyeball; A user input section for inputting user commands; and A portable eye examination device characterized by including a control unit that stores a vision test image including a vision test guide for a user's vision test, and controls the display unit so that the vision test image is output when a user command for a vision test is entered into the user input unit.

2. In Paragraph 1, It further includes a speaker that outputs the above vision test guidance as voice, and The above control unit is, A portable eye examination device characterized by controlling the speaker to output the vision test guidance as voice in response to the vision test guidance being displayed in the vision test video.

3. In Paragraph 1, The above-mentioned reflective parts are provided in multiple locations within the internal receiving space of the eye examination case, and The above control unit is, A portable eye examination device characterized by controlling the display unit so that a preset screen light output intensity of the display unit corresponding to the distance of a plurality of the above-mentioned reflective units is output.

4. In Paragraph 1, It further includes an examination camera placed in the internal receiving space of the above-mentioned examination case to photograph the user's eyeball, and The above control unit is, A portable eye examination device characterized by storing multiple disease images for multiple eye diseases, comparing a user's eye image captured by the examination camera with the multiple disease images, and identifying a disease image with a similarity level greater than a preset value as a result of the comparison.

5. In Paragraph 1, A portable eye examination device characterized by further including a lens unit comprising a convex lens and a concave lens disposed on the output path of the screen light of the display unit to magnify and reduce the vision test image.

6. In Paragraph 1, The above convex lens and concave lens are movable with respect to the above examination case, It further includes a lens movement drive unit that moves the convex lens and the concave lens, and The above control unit is, A portable eye examination device characterized by controlling the lens movement drive unit so that the object size of the vision test image for a user's vision test is adjusted.

7. In Paragraph 1, It further includes a microphone that collects the user's voice, The above control unit is, A portable eye examination device characterized by storing at least one voice for each of a plurality of objects in the above-mentioned visual acuity test image, controlling the output of the above-mentioned visual acuity test image, comparing the voice of the outputted object with the user voice collected by the microphone, and if the comparison result is determined to be the same, controlling the output of the next object that is smaller than the outputted object.

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