Spectacle frame analyzer

Abstract

The utility model provides a glasses frame analyzer, comprising: a sighting mark module comprising a display screen used for displaying a sighting mark pattern and projecting sighting mark light corresponding to the sighting mark pattern; the detection module is arranged on one side of the sighting mark module and used for acquiring an image of the face of the user so as to calculate the pupil distance and / or pupil height of the user; and the light guide module is arranged corresponding to the sighting mark module and the detection module at the same time, and the light guide module comprises a semi-transparent and semi-reflective element and is used for guiding the sighting mark light to the eyes of a user and guiding the light of the face of the user to the detection module. According to the mirror frame analyzer provided by the invention, the attention of a user can be improved, so that the accuracy of pupil distance and pupil height measurement is improved.

Description

Technical Field

[0001] The present application relates to the field of ophthalmology, and in particular to a spectacles frame analyzer. Background Art

[0002] Existing methods for measuring pupillary distance and pupil height typically use an interpupillary distance ruler. During measurement, the subject looks straight ahead with both eyes. The measurer aligns the interpupillary distance ruler with the center of the subject's nose bridge and then checks the scale corresponding to the center of the pupil. However, during the measurement process, there is a risk that the subject may lose focus or be distracted by nearby objects such as the interpupillary distance ruler, causing their gaze to wander, leading to measurement errors. Utility Model Content

[0003] On one hand, the present application provides a frame analyzer, comprising:

[0004] The sight mark module comprises a display screen for displaying a sight mark pattern and for projecting sight mark light corresponding to the sight mark pattern;

[0005] a detection module, disposed on one side of the sight mark module, for acquiring an image of the user's face for calculating the user's pupil distance and / or pupil height; and

[0006] The light guiding module is set corresponding to the sight mark module and the detection module. The light guiding module includes a semi-transmissive and semi-reflective element for guiding the sight mark light to the user's eyes and for guiding the light on the user's face to the detection module.

[0007] The frame analyzer provided in the embodiment of the present application can form an optotype pattern on the display screen by setting an optotype module, thereby attracting the user's attention. By setting a detection module to directly obtain an image of the user's face, the user's pupil distance and pupil height can be calculated through the image, avoiding the use of other measurement tools. This is beneficial to avoiding the user's attention being distracted by nearby objects, thereby reducing measurement errors and improving the efficiency and accuracy of measuring pupil distance and pupil height. By setting the light guiding module to include a semi-transparent and semi-reflective element, the optical path of the optotype module can be overlapped with the optical path of the detection module, that is, the semi-transparent and semi-reflective element can reflect the optotype light into the user's eyes and transmit the light from the user's face into the detection module, or transmit the optotype light into the user's eyes and reflect the light from the user's face into the detection module. This is beneficial to improving space utilization.

[0008] In one embodiment, the light guiding module further includes a dimming element, which is arranged between the semi-transmissive and semi-reflective element and the sight mark module in the optical path, and the dimming element is used to modulate the sight mark light so that the user sees an enlarged virtual image of the display screen after receiving the sight mark light.

[0009] In one embodiment, the light guiding module further includes a reflective element, which is disposed between the sight mark module and the dimming element on the optical path and is configured to reflect the sight mark light to the dimming element.

[0010] In one embodiment, the eyeglass frame analyzer further includes a shell, in which the sight mark module, the detection module and the light guiding module are all accommodated. A window is provided on the shell, and the sight mark light guided by the light guiding module can be emitted to the outside of the shell through the window.

[0011] In one embodiment, the detection module includes an image acquisition module, which is arranged on one side of the semi-transparent and semi-reflective element and corresponds to the window; the light from the user's face is transmitted to the image acquisition module through the window and the semi-transparent and semi-reflective element.

[0012] In one embodiment, the housing includes a fixing frame and an outer shell, the fixing frame is used to fix the sight mark module, the detection module and the light guide module; the outer shell accommodates the supporting frame.

[0013] In one embodiment, the eyeglass frame analyzer further comprises a plurality of lighting elements, wherein the lighting elements are disposed on the fixing frame and are configured to provide lighting to the user's face.

[0014] In one embodiment, the eyeglass frame analyzer further comprises a bracket connected to the housing to support the housing.

[0015] In one embodiment, the bracket includes a base and a telescopic rod, two ends of the telescopic rod are respectively connected to the base and the shell, and the telescopic rod is used to drive the shell to move relative to the base.

[0016] In one embodiment, the sight mark pattern changes over time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the structure of the frame analyzer in the embodiment of the present application.

[0018] Figure 2 Schematic diagram of the internal structure of the frame analyzer in the embodiment of the present application.

[0019] Figure 3 Schematic diagram of the optical path structure of the frame analyzer in the embodiment of the present application.

[0020] Figure 4 Schematic diagram of the pattern on the display screen in the embodiment of the present application.

[0021] Description of main component symbols

[0022] Frame Analyzer 100

[0023] Sight mark module 10

[0024] Display 11

[0025] Detection module 30

[0026] Image acquisition module 31

[0027] Lighting element 33

[0028] Light guide module 50

[0029] Transflective element 51

[0030] Dimming element 53

[0031] Reflective element 55

[0032] Housing 70

[0033] Housing 71

[0034] Fixed frame 73

[0035] Windows 732

[0036] Bracket 90

[0037] Base 91

[0038] Telescopic rod 93

[0039] Sight light L1

[0040] Face Light L3

[0041] Sight mark patterns A, A1

[0042] Eyes

[0043] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0045] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0046] In order to further illustrate the technical means and effects adopted by this application to achieve the intended purpose, the following detailed description of this application is made in conjunction with the accompanying drawings and preferred implementation methods.

[0047] Please also refer to Figure 1 and Figure 2 The eyeglass frame analyzer 100 provided in an embodiment of the present application includes an optotype module 10, a detection module 30, a light guide module 50, a housing 70, and a bracket 90. The optotype module 10 is used to display an optotype pattern and to project optotype light corresponding to the optotype pattern, and the detection module 30 is used to obtain a facial image of the user for calculating the user's pupil distance and / or pupil height. The light guide module 50 is configured to correspond to both the optotype module 10 and the detection module 30. The light guide module is used to guide the optotype light to the user's eyes and to guide the light on the user's face to the detection module 30. The housing 70 includes a shell 71 and a fixing frame 73. The fixing frame 73 is used to fix the optotype module 10, the detection module 30, and the light guide module 50. The housing 71 is used to accommodate the fixing frame 73. The bracket 90 is connected to the housing 71 and is used to support the housing 70, the optotype module 10, the detection module 30, and the light guide module 50.

[0048] The frame analyzer 100 provided in an embodiment of the present application is used to test the pupil distance and pupil height of a user. Specifically, the pupil distance refers to the distance between the two pupils of a user, and the pupil height refers to the distance between the frame of the glasses and the pupil when the user wears the glasses. By acquiring a facial image of the user when looking at a sight mark pattern, image information of the user's eyes can be obtained, and the pupil distance and pupil height of the user can be calculated based on the image information. The frame analyzer 100 can be applied to measurements during the glasses configuration process, so as to facilitate obtaining lenses that are adapted to the user. The frame analyzer 100 can also be applied to other scenarios, and this application does not impose any restrictions on this.

[0049] Please also refer to Figure 2 and Figure 3 The sight mark module 10 includes a display screen 11, which is used to display an sight mark pattern A and project sight mark light L1 corresponding to the sight mark pattern A. In this embodiment, the display screen 11 can be a liquid crystal display, a light-emitting diode display, an organic light-emitting diode display, a mini light-emitting diode display, or a micro light-emitting diode display, etc. In other embodiments, the display screen 11 can also be a projection screen, and the sight mark module 10 also includes a projector, which projects the sight mark pattern A onto the display screen 11. This application does not limit the specific structure of the display screen 11.

[0050] In this example, see Figure 4, the optotype pattern A displayed on the display screen 11 is a cross. Specifically, the cross-shaped pattern helps attract the user's attention, directing the user's gaze to the center of the cross, thereby preventing the user's gaze from wandering due to distraction, and thus preventing inaccurate pupillary distance and pupil height measurement results. In other embodiments, the optotype pattern A can also be set to other patterns that can attract the user's attention, and this application is not limited to this.

[0051] In this embodiment, the optotype pattern A changes over time. Specifically, the shape or position of the optotype pattern A can change over time, thereby forming a dynamic image. For example, at one moment, the optotype pattern A is a cross, while at a second moment, a line within the optotype pattern A1 rotates and shifts. At the next moment, the optotype pattern A returns to a cross, thus forming a continuously looping dynamic image. By setting the optotype pattern A to change over time, the user's attention can be further attracted, preventing the user's vision from wandering due to inattention.

[0052] The changes in the sight mark pattern A can be regular changes or irregular random vibrations. Specifically, the sight mark pattern A can rotate or move periodically, for example, rotating around the center of the cross, or translating along a certain path, or rotating while translating, etc. The sight mark pattern A can also be irregular random vibrations or random rotations. The changes in the sight mark pattern A can also be changes in the size or shape of the pattern. For example, from a cross to a line, or from a cross to a quadrilateral, etc. The present application does not limit the way the sight mark pattern A changes. As long as it can attract the user's attention and avoid the user's line of sight from being distracted, it is within the scope of the present application.

[0053] The eyeglass frame analyzer 100 provided in the embodiment of the present application sets the shape of the sight mark pattern A to be cross-shaped and allows the sight mark pattern A to change over time, so that the sight mark pattern A can better attract the user's attention and avoid the user's line of sight from being distracted, thereby improving the accuracy of measuring the pupillary distance and pupil height.

[0054] Please refer to Figure 2 The detection module 30 includes an image acquisition module 31 and an illumination element 33. Both the image acquisition module 31 and the illumination element 33 are fixed to a fixing frame 73. Specifically, the image acquisition module 31 is disposed on the inner side of the fixing frame 73, and the illumination element 33 is disposed on the outer side of the fixing frame, facing the user.

[0055] The lighting element 33 is used to provide illumination for the image acquisition module 31. Specifically, in this embodiment, the lighting element 33 may be a plurality of light-emitting diodes arranged in a row. In other embodiments, the lighting element 33 may also be a light bar, or multiple light-emitting diodes arranged in other ways, such as in multiple rows, multiple columns, or a ring, etc., which is not limited in this application.

[0056] A window 732 is formed on the fixed frame 73, and the window 732 is set corresponding to the image acquisition module 31, and the sight light L1 can be emitted to the outside of the fixed frame 73 through the window 732 under the guidance of the light guide module 50, that is, the user can see the display screen 11 located inside the fixed frame 73 through the window 732.

[0057] The fixing frame 73 can also be used to support and fix other components, such as a heat dissipation element for dissipating heat from the display screen 11, a power supply and a control module electrically connected to the display screen 11, etc., which is not limited in this application.

[0058] In this embodiment, the light guiding module 50 includes a transflective element 51, a dimming element 53, and a reflective element 55. The transflective element 51 is positioned corresponding to the window 732 and is located between the window 732 and the image acquisition module 31. The transflective element 53 is used to transmit the user's facial light L3 to the image acquisition module and to reflect the sight mark light L1 toward the user's eye E. The dimming element 53 is located between the transflective element 51 and the sight mark module 10 in the optical path. The dimming element 53 is used to modulate the sight mark light L1 so that the virtual image seen by the user after receiving the sight mark light L1 is a magnified virtual image of the display screen 11. The reflective element 55 is located between the dimming element 53 and the sight mark module 10 in the optical path and is used to reflect the sight mark light L1 toward the dimming element 53.

[0059] The dimming element 50 is specifically a Fresnel lens. The sight mark pattern A seen by the user through the dimming element 50 is a magnified virtual image A' located at a farther position. That is, the dimming element 50 can be regarded as a magnifying glass, which can form a virtual image of the sight mark pattern A at a farther position from the dimming element 50, thereby allowing the user's line of sight to be focused at a farther position, thereby facilitating the determination of the user's far pupil distance.

[0060] The frame analyzer 100 provided in the embodiment of the present application, by providing a semi-transparent and semi-reflective element 51, can enable the user's line of sight to face the image acquisition module 31 when observing the display screen 11, so that the image acquisition module 31 can more accurately obtain the user's facial image and further calculate the user's pupil distance / pupil height.

[0061] In other embodiments, the semi-transmissive and semi-reflective element 51 may also transmit the sight mark light L1 emitted by the sight mark module 10 and reflect the user's facial light L3 to the detection module 30 , and this application does not impose any limitation on this.

[0062] The bracket 90 includes a base 91 and a telescopic rod 93. The ends of the telescopic rod 93 are connected to the base 91 and the housing 70, respectively. The telescopic rod 93 is used to move the housing 70 relative to the base 91. Specifically, the telescopic rod 93 can adjust the distance between the housing 70 and the base 91 to accommodate users of different body shapes.

[0063] The frame analyzer 100 provided in the embodiment of the present application, by providing an optotype module 10, can form an optotype pattern A on the display screen 11, thereby attracting the user's attention. By providing a detection module 30 to directly obtain an image of the user's face, the user's pupillary distance and pupil height can be calculated from the image, avoiding the use of other measurement tools. This helps prevent the user's attention from being distracted by nearby objects, thereby reducing measurement errors and improving the efficiency and accuracy of measuring pupillary distance and pupil height. By providing a light guide module 50, the optical path of the detection module 30 can be merged with the optical path of the optotype module 10, thereby facilitating the acquisition of an image of the user's face when looking straight ahead, and also improving space utilization.

[0064] Those skilled in the art should recognize that the above embodiments are merely intended to illustrate the present application and are not intended to limit the present application. As long as they are within the spirit of the present application, appropriate changes and modifications to the above embodiments are within the scope of protection claimed in the present application.

Claims

1. A frame analyzer, characterized in that: include: The sight mark module comprises a display screen for displaying a sight mark pattern and for projecting sight mark light corresponding to the sight mark pattern; A detection module, used to obtain an image of the user's face for calculating the user's pupil distance and / or pupil height; as well as The light guiding module is set corresponding to the sight mark module and the detection module. The light guiding module includes a semi-transmissive and semi-reflective element for guiding the sight mark light to the user's eyes and for guiding the light on the user's face to the detection module.

2. The eyeglass frame analyzer according to claim 1, wherein: The light guiding module further includes a dimming element, which is arranged between the semi-transmissive and semi-reflective element and the sight mark module on the optical path. The dimming element is used to modulate the sight mark light so that the user sees an enlarged virtual image of the display screen after receiving the sight mark light.

3. The eyeglass frame analyzer according to claim 2, wherein: The light guide module further includes a reflective element, which is arranged between the sight mark module and the dimming element on the optical path and is used to reflect the sight mark light to the dimming element.

4. The eyeglass frame analyzer according to claim 1, wherein: The system further comprises a shell, wherein the sight mark module, the detection module and the light guiding module are all accommodated in the shell, and a window is provided on the shell, through which the sight mark light guided by the light guiding module can be emitted to the outside of the shell.

5. The eyeglass frame analyzer according to claim 4, wherein: The detection module includes an image acquisition module, which is arranged on one side of the semi-transparent and semi-reflective element and corresponds to the window; the light from the user's face is transmitted to the image acquisition module through the window and the semi-transparent and semi-reflective element.

6. The eyeglass frame analyzer according to claim 4, wherein: The housing includes a fixing frame and an outer shell. The fixing frame is used to fix the sight mark module, the detection module and the light guide module; the outer shell accommodates the fixing frame.

7. The eyeglass frame analyzer according to claim 6, wherein: The detection module further includes a lighting element, which is disposed on the fixing frame and is used to provide lighting to the user's face.

8. The eyeglass frame analyzer according to claim 4, wherein: A bracket is also included, and the bracket is connected to the shell to support the shell.

9. The eyeglass frame analyzer according to claim 8, wherein: The bracket includes a base and a telescopic rod, two ends of the telescopic rod are respectively connected to the base and the shell, and the telescopic rod is used to drive the shell to move relative to the base.

10. The eyeglass frame analyzer according to claim 1, wherein: The sight mark pattern changes over time.

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