CN117898666A - Human vision measuring device and measuring method thereof - Google Patents
Human vision measuring device and measuring method thereof Download PDFInfo
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- CN117898666A CN117898666A CN202211245974.7A CN202211245974A CN117898666A CN 117898666 A CN117898666 A CN 117898666A CN 202211245974 A CN202211245974 A CN 202211245974A CN 117898666 A CN117898666 A CN 117898666A
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Abstract
A human eye vision measuring device is used for measuring the eye position, fusion ability, adjusting amplitude and eyeball diopter of human eyes. The human eye vision measuring device comprises an imaging element, a zooming element, an imaging lens group, a light splitting element and a control unit. The control unit is electrically connected to the imaging element and the zoom element. The imaging element is used for providing at least one image beam. The zoom element, the imaging lens group and the light splitting element are sequentially arranged on the transmission path of at least one image light beam. The light-splitting element is used for reflecting at least one image light beam to the human eye so as to generate a virtual image, and the light-splitting element is positioned between the imaging positions of the human eye and the virtual image. The control unit is used for controlling the imaging element to change the brightness and/or display content of the virtual image. The zoom element is controlled by the control unit to change the size and/or imaging position of the virtual image. The invention also provides a measurement method of the human eye vision measurement device. The human eye vision measuring device and the measuring method thereof provided by the invention have higher precision, convenience and lower cost.
Description
Technical Field
The present invention relates to a measuring device and a measuring method, and more particularly to a measuring device and a measuring method for human vision.
Background
In the existing human eye vision measurement system, the vision function measurement including ametropia (myopia, hyperopia and astigmatism), eyeball refractive power, color differentiation and the like is performed, but most measurement systems have limitations although many mature measurement technologies exist. Such as conventional talent measurement, for example, users of the scope retinoscopy device need to exercise for a long time to become familiar, and measurement accuracy and measurement repeatability vary from user to user. Or an autorefractor, although the measurement is fast and repeatable, the measurement method does not take into account the experience of the user, which results in lower accuracy of the results.
Although the subjective measurement method has higher accuracy, the use is limited. For example, in the measurement, if the test frame is used for the measurement, the overall measurement requires a larger space, and because of the test lens group, the superposition of the distances between the corrective lens and the test lens will make the measured effective diopter different from the actual value. In addition, the measurement items are limited, and if the measurement of binocular fusion capability or vergence is required, other devices need to be added to the measurement.
Based on the shortcomings of subjective measurement, there are also comprehensive optometry methods. However, the measurement process of the integrated measurement method is more in a dark environment, so the difference of pupil sizes also results in measurement accuracy. In addition, the instrument measurement is close to the face, which easily causes the perception adjustment to influence the measurement accuracy. Therefore, the existing measurement technique has the problems of poor measurement accuracy, insufficient equipment function and higher equipment environment requirement.
The background section is only for the purpose of aiding in the understanding of the present invention and thus the disclosure of the background section may include some techniques that do not form part of the knowledge of one of ordinary skill in the art. The disclosure of the "background" section is not intended to represent the subject matter or problem underlying one or more embodiments of the present invention, as it would be known or appreciated by one of ordinary skill in the art prior to the application of the present invention.
Disclosure of Invention
The invention provides a human eye vision measuring device and a measuring method thereof, which can measure the eye position, fusion ability, adjusting amplitude, eyeball diopter and other human eye vision ability of human eyes, and have higher precision, convenience and lower cost.
Other objects and advantages of the present invention will be further appreciated from the technical features disclosed in the present invention.
In order to achieve one or a part or all of the above or other objects, the present invention provides a human eye vision measuring device for measuring the eye position, fusion ability, adjustment amplitude and diopter of eyes. The eye vision measuring device comprises an imaging element, a zooming element, an imaging lens group, a light splitting element and a control unit. Wherein the control unit is electrically connected to the imaging element and the zoom element. The imaging element is used for providing at least one image beam. The zoom element, the imaging lens group and the light splitting element are sequentially arranged on the transmission path of at least one image light beam. The light-splitting element is used for reflecting at least one image light beam to the human eye so as to generate a virtual image, and the light-splitting element is positioned between the human eye and the imaging position of the virtual image. The control unit is used for controlling the imaging element to change the brightness and/or display content of the virtual image. The zoom element is controlled by the control unit to change the size and/or imaging position of the virtual image.
In order to achieve one or a part or all of the above or other objects, the present invention further provides a measurement method of an eye vision measurement device for measuring the eye position, fusion ability, adjustment range and diopter of eyes. The eye vision measuring device comprises an imaging element, a zooming element, an imaging lens group, a light splitting element and a control unit. The measuring method of the vision measuring device comprises the following steps: the imaging element displays a measurement image and provides at least one image beam; the method comprises the steps that at least one image beam is reflected to a human eye by the light splitting element to form a virtual image formed by a corresponding measurement image, wherein the zoom element, the imaging lens group and the light splitting element are sequentially arranged on a transmission path of the at least one image beam, and the light splitting element is positioned between imaging positions of the human eye and the virtual image; controlling the imaging element by the control unit to change the brightness and/or display content of the virtual image; and controlling the zoom element by means of the control unit to change the size and/or imaging position of the virtual image.
Based on the foregoing, embodiments of the present invention have at least one of the following advantages or effects. In the human eye vision measuring device, when the human eye vision is measured, the imaging element displays the measured image and provides at least one image beam, and the light splitting element reflects the image beam to the human eye to form a virtual image corresponding to the measured image. Therefore, the control unit can control the imaging element to change the brightness and/or display content of the virtual image. And controlling the zoom element by means of the control unit to change the size and/or imaging position of the virtual image. Therefore, by means of the means, the purpose of measuring the eye position, the fusion capacity, the adjusting amplitude, the eyeball diopter and other eye vision capacities of human eyes can be achieved only by the eye vision measuring device, and compared with the traditional device for measuring the eye vision capacity, the device has higher precision, convenience and lower cost.
In order to make the above features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.
Drawings
Fig. 1 is a schematic diagram of an apparatus for measuring human vision according to an embodiment of the invention.
FIG. 2 is a flowchart illustrating a measuring method of an eye vision measuring device according to an embodiment of the invention.
Detailed Description
The foregoing and other features, aspects and advantages of the present invention will become more apparent from the following detailed description of the preferred embodiment, which proceeds with reference to the accompanying drawings. The directional terms mentioned in the following embodiments are, for example: upper, lower, left, right, front or rear, etc., are merely references to the directions of the drawings. Thus, the directional terminology is used for purposes of illustration and is not intended to be limiting of the invention.
Fig. 1 is a schematic diagram of an apparatus for measuring human vision according to an embodiment of the invention. Please refer to fig. 1. The present embodiment provides a human vision measuring device 100, which includes an imaging element 110, a zooming element 120, an imaging lens set 130, a beam splitting element 140 and a control unit 115. The eye vision measuring device 100 is used for measuring the eye position (phoria), the fusion ability (fusional vergence), the adjusting amplitude and the diopter of the eyeball of the human eye 10. The eye vision measurement device 100 may be a system type structure, such as a stand-alone measurement machine, or a portable type structure, and the portable type headset is formed by carrying the imaging element 110, the zoom element 120, the imaging lens assembly 130, the beam splitter 140 and the control unit 115.
The imaging element 110 is configured to provide at least one image beam L, and the zoom element 120, the imaging lens assembly 130 and the beam splitting element 140 are sequentially disposed on a transmission path of the at least one image beam L. For example, the imaging device 110 is an organic light-emitting diode display (OLED display) panel or other image display panel with enough brightness. In the present embodiment, the number of the at least one image light beams L is two, for example, and the at least one image light beams L are respectively transmitted to the left eye and the right eye of the human eye 10, and the left eye and the right eye can be measured respectively or simultaneously.
The zoom element 120 is disposed on a transmission path of at least one image beam L, and is, for example, a zoom lens (zoom lens), a liquid-state zoom lens, or a liquid-crystal zoom lens, which can change a focal length by control. The zoom element 120 can adjust the imaging plane and the corresponding size of the virtual image generated by the human eye vision measuring device 100 by changing the focal length.
The imaging lens assembly 130 is disposed on the transmission path of at least one image beam L, and is a combination of one or more optical lenses with diopters, such as various combinations of non-planar lenses including biconcave lenses, biconvex lenses, meniscus lenses, convex-concave lenses, plano-convex lenses, and plano-concave lenses. The imaging lens assembly 130 is used for condensing, expanding or collimating the image beam L according to the requirement, so as to transmit the image beam L to the beam splitting element 140, which is not limited in the present invention.
The beam splitter 140 is disposed on a transmission path of the at least one image beam L, and is configured to reflect the at least one image beam L to the human eye 10 to generate a virtual image VI in front of the human eye 10. The spectroscopic element 140 is located between the imaging positions E1, E2, E3 (or imaging planes) of the human eye 10 and the virtual image VI. In the present embodiment, the beam splitter 140 is, for example, a beam splitter prism, but the present invention is not limited thereto. In other words, the present embodiment uses Virtual Reality (VR) technology for human eye vision measurement.
In the present embodiment, the human eye vision measuring device 100 further includes an optical lens assembly 140 disposed on a transmission path of at least one image beam L from the imaging element 110, and the zoom element 120 is disposed between the optical lens assembly 140 and the imaging lens assembly 130. The optical lens group 140 includes, for example, a combination of one or more optical lenses having diopters, such as various combinations of non-planar lenses including biconcave lenses, biconvex lenses, meniscus lenses, plano-convex lenses, and plano-concave lenses. The type and kind of the optical lens assembly 140 are not limited in the present invention. The optical lens assembly 140 is used for performing beam shrinking, beam expanding or collimation on at least one image beam L, and the invention is not limited thereto.
The control unit 115 is electrically connected to the imaging element 110 and the zoom element 120, respectively. For example, the control unit 115 is a central processing unit (Central Processing Unit, CPU), or other programmable general purpose or special purpose microprocessor (microprocessor), digital signal processor (DIGITAL SIGNAL processor, DSP), programmable controller, application Specific Integrated Circuit (ASIC), or other similar components or combinations thereof, but the invention is not limited thereto. The human eye vision measuring device 100 adjusts the imaging element 110 by the control unit 115 to change the brightness and/or display content of the virtual image VI, thereby measuring the eye position and fusion capability of the human eye 10. In addition, the human eye vision measuring device 100 further adjusts the zoom element 120 by the control unit 115 to change the size of the virtual image VI and/or the imaging positions E1, E2, E3, so as to measure the adjustment range and the diopter of the eye. In this embodiment, the human visual measurement device 100 further includes an input interface (not shown), such as a touch panel, a keyboard, or a remote controller, for providing the inspector and/or the subject with information such as commands or feedback, so that the control unit 115 correspondingly adjusts the imaging element 110 or the zoom element 120 according to the information such as commands or feedback.
Specifically, the human eye vision measuring device 100 includes a near mode and a far mode, so that the human eye vision measuring device 100 can be switched to the near mode or the far mode by the control unit 115 during the measurement process. When measuring the eye position and the fusion ability in the close-range mode, the distance between the imaging position E1 of the virtual image VI and the human eye 10 is 20 centimeters (cm) or more and 80 centimeters (cm) or less. When the eye position and the fusion ability are measured in the remote mode, the distance between the imaging positions E2, E3 of the virtual image VI and the human eye is 3 meters (m) or more and 8 meters (m) or less, but the present invention is not limited thereto. In this way, the eye position, fusion ability, adjustment range, eyeball diopter and other eye vision ability of the human eye 10 can be measured by the eye vision measuring device 100, and compared with the traditional eye vision ability measuring device, the eye vision ability measuring device has higher accuracy, convenience and lower cost.
FIG. 2 is a flowchart illustrating a measuring method of an eye vision measuring device according to an embodiment of the invention. Please refer to fig. 1 and 2. In this embodiment, the step flowchart of fig. 2 is at least applicable to the human eye vision measuring device 100 shown in fig. 1, so the human eye vision measuring device 100 shown in fig. 1 is taken as an example. In this embodiment, first, step S200 is performed to enable the imaging device 110 to display a measurement image and provide at least one image beam L. Next, after the above step, step S201 is performed, in which at least one image beam L is reflected by the spectroscopic element 140 to the human eye 10 to form a virtual image VI formed by a corresponding measurement image, where the zoom element 120, the imaging lens set 130 and the spectroscopic element 140 are sequentially disposed on the transmission path of the at least one image beam L, and the spectroscopic element 140 is located between the human eye 10 and the imaging position of the virtual image VI. Next, after the above steps, step S202 is performed, in which the control unit 115 controls the imaging element 110 to change the brightness and/or display content of the virtual image VI. Finally, after the above steps, step S203 is performed, in which the control unit 115 controls the zoom element 120 to change the size of the virtual image VI and/or the imaging positions E1, E2, E3. The corresponding measurement values of the visual ability of the human eye can be obtained by adjusting the parameters of the brightness, the display content, the size, the imaging positions E1, E2, E3 and the like of the virtual image VI.
In detail, the process of measuring the eye position is performed by adjusting the index position of the measurement image on the imaging device 110 by the control unit 115. For example, in the process of measuring eye position, it can be classified into, for example, far horizontal eye position measurement (DISTANCE LATERAL phoria, DLP), far vertical eye position measurement (DISTANCE VERTICAL phoria, DVP), near horizontal eye position measurement (NEAR LATERAL phoria, NLP), and near vertical eye position measurement (NEAR VERTICAL phoria, NVP). In detail, at the beginning of the horizontal eye level measurement, a measurement image having a first index pattern and a second index pattern separated from each other is provided on the imaging device 110, wherein the connection lines of the first index pattern and the second index pattern are not parallel and are not perpendicular to one side of the imaging device 110. That is, the subject sees two separate first and second index patterns, and the relative positions should be top right, bottom left. Then, the inspector fixes the position of the first index pattern and the human eye 10 looks at the first index pattern on the virtual image VI formed by the measurement image, and adjusts the position of the second index pattern along the parallel side direction. When the subject observes the second index pattern to align with the first index pattern in the direction of the vertical side edge, a level measurement value of the eye position is obtained.
Similarly, when the vertical eye position measurement is continued, the position of the second index pattern can be fixed and the human eye 10 looks at the second index pattern on the virtual image VI formed correspondingly to the measurement image. Then, the inspector adjusts the position of the first index pattern along the direction of the vertical side. When the subject observes the first index pattern to align with the second index pattern in the direction of the parallel side edges, the vertical measurement value of the eye position is obtained. In this embodiment, when the near-distance eye position measurement is performed, the eye vision measurement device 100 is switched to the near-distance mode, so that the distance from the imaging position E1 of the virtual image VI to the eye 10 is adjusted to be 20 cm or more and 80 cm or less; when the distance eye position measurement is performed, the human eye vision measurement device 100 switches to the distance mode, so that the distance from the imaging positions E2 and E3 of the virtual image VI to the human eye 10 is adjusted to be 3m or more and 8m or less for the distance mode measurement.
In addition, the process of measuring the adjustment range is performed by adjusting the index position of the measurement image on the imaging element 110 by the control unit 115. For example, in the process of measuring the fusion capability, the process may be divided into, for example, a long-distance negative fusion capability (DISTANCE NEGATIVE fusional vergence, DNFV), a long-distance positive fusion capability (distance positive fusional vergence, DPFV), a short-distance negative fusion capability (NEAR NEGATIVE fusional vergence, NNFV), and a short-distance positive fusion capability (near positive fusional vergence, NPFV). For example, in the fusion ability measurement process, the index position of the measured image on the imaging device 110 is adjusted. In detail, in a measurement process, a measurement image with two index patterns overlapping is provided on the imaging element 110. Then, the two overlapped index patterns are gradually separated by adjusting, and the two separated index patterns are gradually overlapped by adjusting, so as to obtain the fusion capability measurement value of human eyes. In detail, when the subject visually feels that the image starts to become blurred, the inspector records as a blurred spot (Blur); continuing to divide the index pattern until the subject feels the index pattern divided into two, at which point it is recorded as a breaking point (Break); then, the two index patterns are started to be close until the subject feels that the index patterns are combined into a clear pattern, and the clear pattern is recorded as a Recovery point (Recovery) at the moment, so that the fusion capability test is completed.
In addition, the procedure of measuring the adjustment range is to use the control unit 115 to adjust the zoom element 120 to match the pattern displayed by the imaging element 110 for inspection. In detail, in the process of measuring the adjustment range, a measurement image with a recognition pattern can be provided on the imaging device 110. Then, the zoom element 130 is adjusted to reduce or increase the distance between the imaging positions E1, E2, E3 of the virtual image VI formed by the corresponding measurement image and the human eye (e.g. move from one imaging position to another imaging position). When the human eye 10 cannot recognize the recognition pattern (i.e., feel blurred) on the virtual image VI, a measurement of the adjustment amplitude of the human eye 10 can be obtained by recording the distance of the virtual image.
Still further, the diopter measurement items include the following five items: equivalent sphere power (SPHERICAL EQUIVALENT, SE), astigmatism component (J0), astigmatism component (J45), back focal line sphere power (F1) and front focal line sphere power (F2), wherein the equivalent sphere power, astigmatism component J0 and astigmatism component J45 are converted values, and the back focal line sphere power and the front focal line sphere power are actual measured values. In detail, in the procedure of measuring diopter of eyeball, first, the subject needs to perform open refraction, and the measured diopter is used as a starting point reference for measuring diopter. Then, a measurement image with a first direction pattern is provided on the imaging element 110, and the inspector adjusts the zoom element 120 by the control unit 115 to reduce the distance from the imaging positions E1, E2, E3 of the virtual image VI formed by the corresponding measurement image to the human eye 10. When the human eye 10 recognizes the first direction pattern, the imaging position of the virtual image VI is defined as the first position. Then, a measurement image with a second direction pattern is provided on the imaging element 110, wherein the first direction is perpendicular to the second direction, and the inspector adjusts the zoom element 120 by the control unit 115 to move the virtual image VI from the first position. When the human eye 10 recognizes the second direction pattern, the imaging positions E1, E2, E3 of the virtual image VI are defined as the second positions, and a diopter measurement value of the human eye 10 is obtained. For example, in measuring, the back focal line sphere power (F1) is measured first, the subject removes the glasses and eyes are alternately measured, when the virtual image position is at a distance (the image is at the position of the previous open prescription measurement plus 2.00D, where D is the diopter unit, however the virtual image position is not limited to the position plus 2.00D, but at least 1.00D is added to ensure that the measurement range is sufficient). At this time, the subject feels blurred in the virtual image, and the examiner adjusts the position of the virtual image at the beginning of measurement, gradually approaches the subject until the subject considers that the virtual image in one direction is clear, and at this time, the image position is recorded as the sphere degree of the back focal line (F1). Then, the subject observes a virtual image perpendicular to the direction of the previously clearer image (for example, when measuring the sphere degree of the back focal line, the subject feels the virtual image in the perpendicular direction clear, and please observe the virtual image in the horizontal direction), and the examiner continues to advance the virtual image position until the subject feels the virtual image clear, and at this time, the sphere degree of the front focal line is recorded (F2). Finally, the measured values of the back focal line sphere power (F1) and the front focal line sphere power (F2) can be converted into equivalent sphere power (SE), astigmatism component (J0) and astigmatism component (J45), but the invention is not limited thereto.
In summary, in the eye vision measuring device of the present invention, when measuring the eye vision, the imaging element displays the measurement image and provides at least one image beam, and the beam splitter reflects the image beam to the eye to form a virtual image corresponding to the measurement image. Therefore, the control unit can control the imaging element to change the brightness and/or display content of the virtual image. And controlling the zoom element by means of the control unit to change the size and/or imaging position of the virtual image. Therefore, by means of the means, the purpose of measuring the eye position, the fusion capacity, the adjusting amplitude, the eyeball diopter and other eye vision capacities of human eyes can be achieved only by the eye vision measuring device, and compared with the traditional device for measuring the eye vision capacity, the device has higher precision, convenience and lower cost.
However, the foregoing is only illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims and their equivalents as filed in light of the foregoing disclosure. Not all of the objects, advantages, or features of the present disclosure are required to be achieved by any one embodiment or claim of the present disclosure. Furthermore, the abstract and title are provided for the purpose of facilitating patent document retrieval only, and are not intended to limit the scope of the claims. Furthermore, references to "first," "second," etc. in this specification or in the claims are only intended to name an element or distinguish between different embodiments or ranges, and are not intended to limit the upper or lower limit on the number of elements.
Reference numerals illustrate:
10: human eyes
100: Human eye vision measuring device
110: Imaging element
115: Control unit
120: Zoom element
130: Imaging lens assembly
140: Optical lens group
E1-E3: imaging position
L: image beam
VI: virtual image
S200-S203: and (3) step (c).
Claims (17)
1. The utility model provides a human eye vision measuring device which characterized in that, human eye vision measuring device is used for measuring eye position, the ability of fusion, the accommodation range of adjusting and eyeball diopter of human eye, just human eye vision measuring device includes imaging element, zoom element, formation of image mirror group, beam split component and control unit, wherein:
The control unit is electrically connected to the imaging element and the zoom element;
The imaging element is used for providing at least one image light beam, and the zoom element, the imaging lens group and the light splitting element are sequentially arranged on a transmission path of the at least one image light beam;
The light splitting element is used for reflecting the at least one image light beam to the human eye so as to generate a virtual image, and the light splitting element is positioned between the human eye and the imaging position of the virtual image;
Controlling the imaging element by the control unit to change the brightness and/or display content of the virtual image; and
The zoom element is controlled by the control unit to change the size of the virtual image and/or the imaging position.
2. The human eye vision measurement device according to claim 1, wherein the human eye vision measurement device includes a near-field mode and a far-field mode, when the eye position and the fusion capability are measured in the near-field mode, a distance from the imaging position of the virtual image to the human eye is 20 cm or more and 80 cm or less, and when the eye position and the fusion capability are measured in the far-field mode, a distance from the imaging position of the virtual image to the human eye is 3 m or more and 8 m or less.
3. The human eye vision measurement device according to claim 1, wherein the control unit adjusts the imaging element to measure the eye position and the fusion ability of the human eye.
4. The human eye vision measurement device according to claim 1, wherein the control unit adjusts the zoom element to measure the adjustment amplitude of the human eye and the eyeball diopter.
5. The human visual measuring device according to claim 1, wherein the imaging element is an organic light emitting diode display panel.
6. The human eye vision measurement device of claim 1, wherein the imaging lens set comprises a combination of one or more optical lenses having diopters.
7. The apparatus according to claim 1, wherein the at least one image beam is transmitted to the left eye and the right eye of the human eye respectively, and the left eye and the right eye can be measured respectively or simultaneously.
8. The human eye vision measurement device of claim 1, further comprising:
the portable structure is used for bearing the imaging element, the zooming element, the imaging lens group, the light splitting element and the control unit.
9. The human eye vision measurement device of claim 8, wherein the portable structure is a head-mounted structure.
10. The human eye vision measurement device according to claim 1, further comprising an optical lens assembly disposed on a transmission path of the at least one image beam, wherein the zoom element is disposed between the optical lens assembly and the imaging lens assembly.
11. The measuring method of the human eye vision measuring device is used for measuring the eye position, the fusion capability, the adjusting amplitude and the eyeball diopter of human eyes, wherein the human eye vision measuring device comprises an imaging element, a zooming element, an imaging lens group, a light splitting element and a control unit, and the measuring method of the vision measuring device comprises the following steps:
Causing the imaging element to display a measurement image and provide at least an image beam;
The at least one image beam is reflected to the human eyes by the light splitting element to form a virtual image corresponding to the measured image, wherein the zoom element, the imaging lens group and the light splitting element are sequentially arranged on a transmission path of the at least one image beam, and the light splitting element is positioned between imaging positions of the human eyes and the virtual image;
Controlling the imaging element by the control unit to change the brightness and/or display content of the virtual image; and
The zoom element is controlled by the control unit to change the size of the virtual image and/or the imaging position.
12. A measuring method according to claim 11, wherein the method for controlling the imaging element by the control unit to change the brightness and/or display content of the virtual image further comprises:
Providing a measurement image with a first index pattern and a second index pattern which are separated from each other on the imaging element, wherein the connecting lines of the first index pattern and the second index pattern are not parallel and perpendicular to the side edge of the imaging element;
fixing the position of the first index pattern and enabling the human eye to watch the first index pattern on a virtual image formed by the measurement image;
adjusting the position of the second index pattern along a direction parallel to the side edge; and
When the second index pattern is aligned with the first index pattern in the direction vertical to the side edge, a level measurement value of the eye position is obtained.
13. A measuring method according to claim 11, wherein the method for controlling the imaging element by the control unit to change the brightness and/or display content of the virtual image further comprises:
fixing the position of the second index pattern and enabling the human eye to watch the second index pattern on a virtual image formed by the measurement image;
Adjusting the position of the first index pattern along a direction perpendicular to the side edge; and
When the first index pattern is aligned with the second index pattern in a direction parallel to the side edge, a vertical measurement value of the eye position is obtained.
14. A measuring method according to claim 11, wherein the method for controlling the imaging element by the control unit to change the brightness and/or display content of the virtual image further comprises:
providing a measurement image with two coincident index patterns on the imaging element;
Adjusting the two index patterns which are overlapped to be gradually separated; and
And adjusting the two separated index patterns to gradually coincide so as to obtain the fusion capability measurement value of the human eyes.
15. A measuring method of a human eye vision measuring device according to claim 11, wherein the method of controlling the zoom element by the control unit to change the size of the virtual image and/or the imaging position further comprises:
providing a measurement image with an identification pattern on the imaging element;
adjusting the zoom element to reduce or increase the distance from the imaging position of the virtual image formed by the corresponding measurement image to the human eye; and
And when the human eyes cannot recognize the identification pattern on the virtual image, obtaining the adjustment amplitude measurement value of the human eyes.
16. A measuring method of a human eye vision measuring device according to claim 11, wherein the method of controlling the zoom element by the control unit to change the size of the virtual image and/or the imaging position further comprises:
Providing a metrology image having a first directional pattern on the imaging element;
adjusting the zoom element to reduce the distance from the imaging position of the virtual image formed by the corresponding measurement image to the human eye;
Defining the imaging position of the virtual image as a first position when the human eye can recognize the first direction pattern;
providing a metrology image having a second direction pattern on the imaging element, wherein the first direction is perpendicular to the second direction;
adjusting the zoom element to move the virtual image from the first position; and
When the human eyes can recognize the second direction pattern, defining the imaging position of the virtual image as a second position, and obtaining the diopter measurement value of the human eyes.
17. The measurement method of the human eye vision measurement device according to claim 11, wherein the method for controlling the zoom element to change the size of the virtual image and/or the imaging position by the control unit when measuring the eye position and the fusion capability of the human eye further comprises:
adjusting the distance from the imaging position of the virtual image to the human eye to be more than or equal to 20 cm and less than or equal to 80 cm so as to perform close-range mode measurement; and
And adjusting the distance from the imaging position of the virtual image to the human eye to be more than or equal to 3 meters and less than or equal to 8 meters so as to carry out remote mode measurement.
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