Optometry detection method and equipment

Abstract

An optometry detection method, which comprises: a collimation corrector is used to capture the pupil position of the subject, and calculate the reference information of the pupil position; an optometric detector emits a refractive light according to the reference information of the pupil position, calculates the diopter information of the eye, and the optometric detector sends the diopter information of the eye to a detector device; An augmented reality display projects a detection visual image according to the reference information of the pupil position, and a test end device judges the detection visual image and a test end answer information to obtain the refraction result. Thus, this disclosure combines augmented reality technology to achieve high accuracy, high efficiency, high interactivity and multi-functional optometry.

Description

Optometry testing methods and equipment The present disclosure relates to a testing method and device, and more particularly to an optometry testing method and device. When light enters the eye, it passes through the lens and focuses on the macula of the retina, producing clear vision. However, when light is not focused on the retina, the image is blurred. In this case, it is necessary to visit a clinic or hospital for glasses to correct vision. The current practice is that the optometrist will first use instruments to check the subject's eye condition, such as the eye's refractive power, to find out whether the subject has myopia, hyperopia or astigmatism. However, the traditional optometry process relies on the optometrist's subjective judgment to determine the results. If the optometrist is inexperienced or makes an error in their judgment, they cannot accurately determine the patient's eye condition. Furthermore, optometrists rely on multiple instruments to complete optometry testing. This is not only inefficient but also uneconomical. Overall, there's currently no effective optometry device available. Furthermore, augmented reality technology hasn't been applied to optometry on the market. Consequently, the industry is actively developing related technologies to find solutions. The main purpose of the present disclosure is to provide an optometry detection method and device combined with augmented reality to assist optometrists in performing optometry, thereby increasing the efficiency of optometry. The aforementioned objectives do not preclude the existence of other objectives. Any objectives that can be derived from the description, patent application scope, or drawings by a person skilled in the art are also included in the objectives of this disclosure. To achieve the above-mentioned objectives, the present disclosure provides an optometry testing method, wherein a subject undergoes optometry testing. The optometry testing method comprises: A collimator is used to capture the subject's pupil position in real time and calculate a perceptual pupil position reference information; An optometry detector emits an optometry light according to the heteronymous pupil position reference information and calculates the eye refractive power information. The optometry detector transmits the eye refractive power information to a tester-end device; and An augmented reality display projects a detection target virtual image according to the external perception pupil position reference information, and a subject end device judges the detection target virtual image and the subject's answer information input into the subject end device to obtain the subject's eye examination result. In another embodiment of the present disclosure, an optometry testing device is provided for a subject to undergo optometry. The optometry testing device includes a trial frame, a collimator, an augmented reality display, and a subject-side device. The trial frame has an optometry lens that can be attached to or detached from the trial frame; the collimator is disposed on the trial frame, and the collimator captures the subject's pupil position in real time and calculates a heteronymous pupil position reference information; the augmented reality display is disposed on the trial frame, and the augmented reality display projects a virtual image of a detection target based on the heteronymous pupil position reference information; the subject-side device is coupled to the augmented reality display via a signal, and the subject-side device determines the virtual image of the detection target and a subject's response information input into the subject-side device to obtain the subject's optometry result. Therefore, the present disclosure has at least the following technical features: 1. This disclosure incorporates augmented reality technology to integrate various optometry equipment. This eliminates the need to purchase different optometry equipment and improves optometry efficiency. 2. This disclosure can avoid misjudgments caused by optometrists’ subjective judgment and lack of experience. 3. The present disclosure uses a collimator to capture the pupil position of the subject to ensure the correctness of the light path, thereby improving the accuracy of the detection. Fourth, the present disclosure uses an interactive optometry method, which not only allows the test subject to feel involved, but also allows the test subject to respond to the virtual image of the test target based on his or her actual visual experience, thereby increasing the accuracy of the optometry. 5. The present disclosure can also project a virtual image of a spatial sight mark through an augmented reality display and calculate eye position information using a collimator to further obtain relevant eye parameters, such as actual displacement, AC / A value, and CA / C value, to assist optometrists in performing eye examinations. To facilitate the description of the central concept expressed in the above technical content of this disclosure, specific embodiments are presented. The various components of the embodiments are depicted according to proportions, sizes, deformations, or displacements suitable for illustration, and are not drawn to scale according to the actual components. This is to be noted in advance. The following describes exemplary embodiments of the present disclosure in detail with reference to the drawings, and is not intended to limit the technical principles of the present disclosure to the specific disclosed embodiments. Instead, the scope of the present disclosure is limited only by the scope of the claims and encompasses replacements, modifications, and equivalents. 1 to 7 , in an embodiment of the present disclosure, an optometry testing device 100 is provided for performing optometry on a subject 4 . 1 to 3 , the optometry testing device 100 includes a trial glasses frame 10 , a collimator 20 , an augmented reality display 30 , and a subject-end device 40 . Referring to FIG. 1 , a trial frame 10 is provided for a subject 4 to wear and is lightweight. Trial frame 10 includes a trial lens 11. The trial lens 11 can be a digital varifocal lens, a physical varifocal lens, a bi-prism varifocal lens, or a lens of varying degrees of power. The trial lens 11 can be attached to or detached from the trial frame 10. In one embodiment of the present disclosure, the trial frame 10 has a slot 12, which can be one or more. A prescription lens 11 is selectively positioned in the slot 12, allowing an optometrist to replace the prescription lens 11. When the prescription lens 11 is needed, it can be moved to a position on the side of the collimator 20 away from the augmented reality display 30 for testing. Referring to FIG. 2 , the present disclosure provides another form of an optometry testing device 100 to enhance wearing comfort. In this disclosure, optometry testing device 100 comprises an outer housing M, which is coupled to a trial frame 10. For ease of illustration, the housing M in FIG. 2 is shown in perspective. A trial lens 11, a collimator 20, an augmented reality display 30, and an optometry detector 50 are disposed within the housing M, thereby enhancing the visual experience. In one embodiment of the present disclosure, the trial frame 10 has an X-axis adjustment device, a Y-axis adjustment device, and a Z-axis adjustment device, allowing the subject 4 to adjust the position of the trial frame 10. Specifically, the X-axis adjustment device can adjust the interpupillary distance between the eyes, the Y-axis adjustment device can adjust the position of the nose pads, and the Z-axis adjustment device can rotate the collimator 20. A collimator 20 is mounted on the trial glasses frame 10. The collimator 20 emits near-infrared light for correction. The collimator 20 includes a camera 21. The camera 21 captures the eyeballs of the subject 4 to capture the pupil position in real time and calculates a reference pupil position. The augmented reality display 30 is mounted on the trial glasses frame 10. The augmented reality display 30 is used to display various optotype virtual images, such as calibration optotype virtual images, test optotype virtual images, spatial optotype virtual images 31, and graphic optotype virtual images, providing a high-quality visual experience for the examinee 4. The augmented reality display 30 projects a test optotype virtual image based on the extrasensory pupil position reference information. The test optotype virtual image can be an up, down, left, or right pattern or other test pattern. The subject-side device 40, which can be a mobile phone, tablet, or computer, allows the subject 4 to input a set of subject response information. The subject response information corresponds to a virtual image of a detection target. The subject-side device 40 is coupled to the augmented reality display 30 via a signal. The subject-side device 40 compares the virtual image of the detection target with the subject response information input into the subject-side device 40 to obtain the eye examination result of the subject 4. For example, the subject 4 wears the trial glasses frame 10, and the augmented reality display 30 projects a virtual image of a test target. The subject 4 then inputs the subject's response information into the subject-side device 40 based on the virtual image of the test target. When the response information matches the test target image, the virtual reality display projects another set of test target images, thus continuing the eye examination process. When the response information and the test target image do not match, the subject-side device 40 obtains the eye examination result of the subject 4, indicating that the eye examination lenses 11 worn by the subject 4 need to be adjusted. Thus, through repeated responses to the aforementioned process, the eye examination result of the subject 4 is optimized. In one embodiment of the present disclosure, the optometry detection device 100 further includes an optometry detector 50, which can emit a single or multiple stable wavelength light sources. The optometry detector 50 is arranged on the trial frame 10. The optometry detector 50 emits an optometry light according to the heteronomous pupil position reference information and calculates the refractive power information of one eye; and the optometry detector 50 performs calculations based on the heteronomous pupil position reference information provided by the collimator 20, which can further reduce the error rate. In one embodiment of the present disclosure, the optometry detector 50 calculates the refractive power, cylindrical power and axial position parameters of the eye with a built-in algorithm. The optometry detector 50 sends the eye refractive power information to a tester-end device 60, so that the optometrist can know the relevant information of the testee's 4 eye. Please refer to FIG. 4 . Near-infrared light from the optometry detector 50 sequentially passes through a spectroscope 1, a reflector 2, and a variable focus lens 3, and is focused on the eyeball of the subject 4. The spectroscope 1 is used to accurately separate multiple light sources to prevent them from interfering with binocular detection; the spectroscope 1 has a splitting ratio of 90:10. The reflector 2 is used to adjust the angle of the near-infrared light. The variable focus lens 3 is used to focus the near-infrared light; the focal length of the variable focus lens 3 ranges from 10 centimeters (cm) to 1 meter (m). The present disclosure allows for adjustment of the splitting ratio of the spectroscope 1 and the focal length of the variable focus lens 3 based on actual circumstances, but is not intended to be limiting. In one embodiment of the present disclosure, the optometry detector 50 has a camera to capture infrared light reflected from the eyeball of the subject 4 . Please refer to FIG. 5 , the present disclosure provides an optometry testing method 200 , which provides an optometry test for a subject 4 . The optometry testing method 200 includes: Step S1: A collimator 20 is used to capture the pupil position of the subject 4 in real time and calculate the paranormal pupil position reference information. Referring to FIG6(a), the collimator 20 emits a calibration light beam, which is received by the subject 4's eyeball. The collimator 20 then obtains pupil center information 22. The collimator 20 calculates the paranormal pupil position reference information based on the pupil center information 22 and the pupil position. The collimator 20 captures the pupil positions of the subject 4 in real time to obtain a plurality of pupil images 23. Referring to Figures 6(b) and (c), when the pupil positions in the plurality of pupil images 23 are not within the pupil center information 22, the pupil images 23 are considered unacceptable. Referring to Figure 6(d), when any pupil position in the plurality of pupil images 23 matches the pupil center information 22, the pupil images 23 are considered acceptable. The optometry detector 50 performs calculations based on the acceptable pupil images 23 provided by the collimator 20 to reduce the error rate. Step S2: An optometry detector 50 emits an optometry beam based on the heteronymous pupil position reference information and calculates the eye's diopter information. The optometry detector 50 sends the eye's diopter information to a tester's terminal device 60. Referring to FIG. 7 , the optometry detector 50 collects optometry light reflected from the eye of the subject 4 and calculates the eye's diopter information based on the reflected optometry light. Specifically, the optometry detector 50 obtains eye refractive error information based on the amount of deformation between the incident optometry light and the reflected optometry light. Based on this eye refractive error information and a built-in algorithm, the optometry detector 50 calculates the eye's diopter information. Step S3: An augmented reality display 30 projects a detection target image based on the extrasensory pupil position reference information. A subject-side device 40 determines the detection target image and the subject's response information input to the subject-side device 40 to obtain the eye examination result of the subject 4. Step S4 : The AR display 30 projects a spatial visual target virtual image 31 based on the extrasensory pupil position reference information and calculates the eye position information. The AR display 30 sends the eye position information to the detector terminal device 60 . The augmented reality display 30 projects a spatial visual target virtual image 31 toward the eyeballs of the subject 4 according to the external pupil position reference information. The augmented reality display 30 calculates the eyeball position information according to the distance at which the subject 4 looks at the spatial visual target virtual image 31 . Please refer to Figures 8 and 9 . The augmented reality display 30 projects different virtual images 31 of spatial sight marks on both eyes, allowing the subject 4 to view virtual images of sight marks at different distances. For example, the subject 4 is guided to view the virtual images 31 of spatial sight marks with a first spacing D1 and the virtual images 31 of spatial sight marks with a second spacing D2, so as to know the angle of eye rotation. The collimator 20 calculates eye convergence angle information based on the virtual images 31 of spatial sight marks at different spacings of the subject 4. In one embodiment of the present disclosure, the subject-end device 40 simultaneously determines eye convergence angle information based on the response information of the subject 4 at the spatial sight marks at different spacings, that is, calculates the relevant information of the eyeball position. In this way, the calculation accuracy is further improved. Referring to FIG. 9 , the first distance D1 is greater than the second distance D2. The distance between the eyeballs is a third distance D3. When the subject 4 views the virtual image 31 of the spatial sight mark at the first distance D1, the distance between the subject's line of sight and the prescription lens 11 is a fourth distance D4. When the subject views the virtual image 31 of the spatial sight mark at the second distance D2, the distance between the subject's line of sight and the prescription lens 11 is a fifth distance D5. Referring to Figure 10 , there is a step A1 between steps S3 and S4. Step A1: The augmented reality display 30 projects a virtual image of a graphic symbol toward each eyeball of the subject 4 based on the extrasensory pupil position reference information. The subject's device 40 receives dominant eye information corresponding to the graphic symbol virtual image to determine the subject's dominant eye. This dominant eye information further improves the accuracy of eye convergence angle detection. Please refer to FIG. 11 , the graphic optotype virtual image includes a test optotype O1 and a control optotype O2 . The test optotype O1 and the control optotype O2 are provided to the subject 4 for viewing to find out the subject's 4 dominant eye. Step S1 is preceded by step A2, which is to consciously adjust the trial frame 10. Step A2: The augmented reality display 30 projects a calibration target virtual image, which guides the subject 4 to adjust the position of the trial frame 10 so that the trial frame 10 is in the correct wearing position. In summary, the present disclosure has the following technical features: First, this disclosure applies augmented reality technology to the field of optometry, thereby integrating various optometry equipment. This eliminates the need to purchase separate optometry equipment. Furthermore, it increases optometrists' efficiency in performing optometry. Second, each detector disclosed herein can accurately detect eye information, such as diopter, AC / A ratio, and CA / C ratio, and provide it to optometrists. This avoids errors caused by subjective judgment or lack of experience on the part of optometrists. 3. The present disclosure uses the collimator 20 to capture the pupil position of the subject 4 to ensure the correctness of the light path and further improve the accuracy of the detection. Fourth, the present disclosure can not only find the pupil position in a sensory way, but also adjust the position of the trial glasses frame 10 in a sensory way. With the cooperation of the two, the accuracy of the detection is further improved. 5. This disclosure utilizes an interactive method for optometry, optimizing the optometry results of subject 4 through the interactive interaction between augmented reality display 30 and subject device 40. This not only allows subject 4 to feel engaged, but also allows them to respond to the virtual images of the test targets based on their actual visual experience, thereby increasing the accuracy of optometry. 6. The present disclosure projects a spatial visual target virtual image 31 through the augmented reality display 30 to obtain relevant parameters of the eyeball to assist optometrists in performing eye examinations. The aforementioned technical features do not preclude the existence of other features. Features that can be derived from the description, patent application scope, or drawings of this disclosure by a person skilled in the art are also included in the features of this disclosure. In summary, the embodiments of this disclosure are intended only to illustrate the technology of this disclosure and are not intended to limit the scope of the patent application of this disclosure. All modifications or variations that do not violate the spirit of this disclosure are within the scope of protection intended by this disclosure. 100: Optometry Testing Equipment 1: Beam Splitter 2: Reflector 3: Variable Focus Lens 4: Test Subject 5: Lens 10: Trial Frame 11: Test Lens 12: Slot 20: Collimator 21: Camera 22: Pupil Center Information 23: Pupil Image 30: Augmented Reality Display 31: Virtual Image of Spatial Vision Marker 40: Test Subject Device 50: Optometry Detector 60: Tester Device 200: Optometry Testing Method A1, A2: Steps S1-S4: Step D1: First Distance D2: Second Distance D3: Third Distance D4: Fourth Distance D5: Fifth Distance M: Housing O1: Test Vision Marker O2: Reference Vision Marker FIG1 is a schematic perspective view of an optometry device according to an embodiment of the present disclosure, particularly illustrating the appearance features of the optometry device. FIG2 is a schematic perspective view of an optometry device according to another embodiment of the present disclosure. FIG3 is a schematic block diagram of an optometry device according to an embodiment of the present disclosure, particularly illustrating the configuration relationship of various components. FIG4 is a schematic diagram (I) of an optometry device according to an embodiment of the present disclosure, particularly illustrating the light path. FIG5 is a flowchart of an optometry method according to an embodiment of the present disclosure. FIG6 is a schematic diagram of an implementation of a collimator according to an embodiment of the present disclosure, particularly illustrating pupil center information. FIG7 is a schematic diagram (II) of an optometry device according to an embodiment of the present disclosure, particularly illustrating the optometry light collected by the optometry detector. FIG8 and FIG9 are schematic diagrams (III) and (IV) of an optometry device according to an embodiment of the present disclosure, particularly illustrating the virtual image of a spatial sight mark projected by an augmented reality display. FIG10 is a flowchart of an optometry method according to another embodiment of the present disclosure. FIG11 is a schematic diagram (V) of an embodiment of the optometry testing device disclosed herein, particularly a schematic diagram showing a virtual image of a projected graphic sight mark on an augmented reality display. 100: Optometry testing equipment 10: Trial Frame 11: Prescription lenses 12: Card slot 20: Collimation Corrector 30: Augmented Reality Display 50: Optometry detector

Claims

1. A method for optometry detection is provided for a subject to undergo optometry, the method comprising: using a collimator to capture the subject's pupil position in real time and calculate a heteronymous pupil position reference information; using an optometry detector to emit an optometry light according to the heteronymous pupil position reference information and calculate the refractive power information of one eye, the optometry detector sending the refractive power information of one eye to a tester-end device; and using an augmented reality display to project a virtual image of a detection target according to the heteronymous pupil position reference information, a subject-end device judging the virtual image of the detection target and subject response information input into the subject-end device to obtain the subject's optometry result.

2. The optometry detection method as described in claim 1, wherein: The augmented reality display projects a spatial visual mark virtual image according to the extrasensory pupil position reference information, calculates the position information of one eyeball, and sends it to the detector terminal device.

3. The optometry testing method as described in claim 2, wherein: A calibration target virtual image is projected through the augmented reality display, and the calibration target virtual image guides the examinee to adjust the position of a trial glasses frame.

4. The optometry testing method as described in claim 2, wherein: The collimator emits a calibration light, the subject's eyeball receives the calibration light, and the collimator obtains pupil center information. The collimator calculates the external perception pupil position reference information based on the pupil center information and the pupil position.

5. The optometry testing method as described in claim 4, wherein: The collimator captures the subject's pupil position in real time to obtain multiple pupil images. When the pupil position in the pupil images matches the pupil center point information, an acceptable pupil image is obtained. The collimator calculates the heteronymous pupil position reference information based on the acceptable pupil image.

6. The optometry testing method as described in claim 2, wherein: The optometry detector collects the optometry light reflected from the subject's eyeball, and calculates the eyeball diopter information according to the reflected optometry light.

7. The optometry testing method as described in claim 2, wherein: The augmented reality display projects the spatial visual target virtual image toward the eyeballs of the subject according to the extrasensory pupil position reference information.

8. The optometry testing method as described in claim 7, wherein: The collimator calculates the eyeball position information according to the distance at which the subject gazes at the virtual image of the spatial sight mark.

9. The optometry testing method as described in claim 8, wherein: The augmented reality display projects a graphic visual mark virtual image toward the eyeballs of the subject according to the external perception pupil position reference information, and the subject end device receives a beneficial eye information corresponding to the graphic visual mark virtual image.

10. An optometry testing device is provided for a subject to undergo optometry, the optometry testing device comprising: a trial frame having an optometry lens, the optometry lens being attachable to or detachable from the trial frame; a collimator disposed on the trial frame, the collimator capturing the pupil position of the subject in real time and calculating a heteronymous pupil position reference information; an augmented reality display disposed on the trial frame, the augmented reality display projecting a virtual image of a detection target based on the heteronymous pupil position reference information; and a subject-end device coupled to the augmented reality display by a signal, the subject-end device determining the virtual image of the detection target and subject response information input into the subject-end device to obtain the optometry result of the subject.

11. The optometry testing device as described in claim 10, wherein: It also includes an optometry detector, which is arranged on the trial glasses frame. The optometry detector emits an optometry light according to the external perception pupil position reference information and calculates the refractive power information of an eye. The optometry detector sends the refractive power information of the eye to a tester's end device.

12. The optometry testing device as described in claim 11, wherein: The prescription lens is a digital varifocal lens, a physical varifocal lens, or a bi-prism varifocal lens.

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