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; and the detection module is arranged on one side of the sighting mark module and is 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. 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] An optotype module, comprising a display screen for displaying an optotype pattern and for projecting optotype light corresponding to the optotype pattern; and

[0005] The detection module is arranged on one side of the sight mark module and is used to obtain an image of the user's face for calculating the user's pupil distance and / or pupil height.

[0006] The frame analyzer provided in the embodiment of the present application can form an optotype pattern on a display screen by providing an optotype module, thereby attracting the user's attention. By providing 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 additional 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 the pupil distance and pupil height.

[0007] In one embodiment, the eyeglass frame analyzer further includes a shell, the sight mark module is accommodated in the shell, a window is provided on the shell, the window is arranged corresponding to the display screen, and the sight mark light can be emitted to the outside of the shell through the window.

[0008] In one embodiment, the eyeglass frame analyzer further comprises a dimming element, which covers the window setting and is used to modulate the sight mark light so that the virtual image seen by the user after receiving the sight mark light is located on a side of the display screen away from the dimming element.

[0009] In one embodiment, the detection module is disposed on the outside of the shell, and the detection module includes a plurality of image acquisition modules, and the plurality of image acquisition modules are arranged in sequence on one side of the window.

[0010] In one embodiment, the detection module further includes a fixing frame, which is connected to the shell and bends and extends from both ends of the window in a direction away from the sight mark module; the multiple image acquisition modules are arranged on the fixing frame.

[0011] In one embodiment, the detection module further includes a plurality of lighting elements, which are disposed on the fixing frame and are used to provide lighting for the image acquisition module.

[0012] In one embodiment, the eyeglass frame analyzer further comprises a bracket connected to the housing to support the housing.

[0013] 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.

[0014] In one embodiment, the sight mark pattern displayed on the display screen is a cross.

[0015] In one embodiment, the sight mark pattern changes over time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the structure of the frame analyzer in the embodiment of the present application.

[0017] Figure 2 Schematic diagram of the internal structure of the frame analyzer in the embodiment of the present application.

[0018] Figure 3 Schematic diagram of the cross-sectional structure of the frame analyzer in the embodiment of the present application.

[0019] Figure 4 Schematic diagram of the optical path structure of the frame analyzer in the embodiment of the present application.

[0020] Figure 5 Schematic diagram of the pattern on the target in the embodiment of this 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] Fixed frame 35

[0029] dimming element 50

[0030] Housing 70

[0031] Housing 71

[0032] Support frame 73

[0033] Windows 732

[0034] Bracket 90

[0035] Base 91

[0036] Telescopic rod 93

[0037] Sight light L1

[0038] Sight mark patterns A, A1

[0039] Virtual image A'

[0040] Eyes

[0041] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0042] 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.

[0043] 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.

[0044] 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.

[0045] Please also refer to Figure 1 and Figure 2The eyeglass frame analyzer 100 provided in the embodiment of the present application includes an optotype module 10, a detection module 30, a dimming element 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. The detection module 30 and the dimming element 50 are arranged on the same side of the optotype module 10, that is, both are arranged on the user's observation side of the optotype module 10. 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 dimming element 50 is used to modulate the optotype light. The housing 70 includes a shell 71 and a support frame 73. The support frame 73 is used to support the optotype module 10. The housing 71 is used to accommodate the support frame 73. The bracket 90 is connected to the shell 71 and is used to support the housing 70, the optotype module 10, the detection module 30 and the dimming element 50.

[0046] 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.

[0047] Please also refer to Figure 3 and Figure 4 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.

[0048] In this example, see Figure 5 , 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.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] Please refer to Figure 2 The support frame 73 is used to support and fix the sight mark module 10. The end of the support frame 73 away from the sight mark module 10 is connected to the detection module 30. A window 732 is opened on the support frame 73. The window 732 is set corresponding to the display screen 11. The sight mark light L1 can be emitted to the outside of the support frame 73 through the window 732. That is, the user can see the display screen 11 located inside the support frame 73 through the window 732.

[0053] The support 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 control module electrically connected to the display screen 11, etc., and this application does not impose any restrictions on this.

[0054] The detection module 30 includes a plurality of image acquisition modules 31, an illumination element 33, and a fixing frame 35. The image acquisition modules 31 and the illumination element 33 are both fixed to the fixing frame 35. The fixing frame 35 is connected to the support frame 73 and bends and extends away from the sight mark module 10 to form an arc-shaped structure. In this embodiment, the support frame 73 and the fixing frame 35 can be integrally formed. In other embodiments, the fixing frame 35 can also be connected and fixed to the support frame 73 by other means, such as snap-fitting, screwing, etc., which is not limited in this application.

[0055] Multiple image acquisition modules 31 are positioned on the fixed frame 35 along its curved extension and arranged sequentially along one side of the viewing window 732, enabling the acquisition of images from any viewing angle within the curved range. When a user's face approaches the curved inner circle of the fixed frame 35 to view the optotype pattern A behind the viewing window 732, the multiple image acquisition modules 31 simultaneously capture images of the user's eyes E, thereby obtaining accurate pupillary distance and pupil height data.

[0056] The lighting elements 33 are disposed on the fixing frame 35 along the direction in which the fixing frame 35 extends, and are used to provide illumination for the image acquisition modules 31. Specifically, in this embodiment, the lighting elements 33 are arranged in two rows on the fixing frame 35 along the arrangement direction of the multiple image acquisition modules 31, so that each image acquisition module 31 is provided with a lighting element 35 on both sides. The lighting elements 33 may specifically be light-emitting diodes. In other embodiments, the lighting elements 33 may be provided in only one row, or be disposed between any two image acquisition modules 31, or be arranged in other arrangements, and this application is not limited thereto.

[0057] Please also refer to Figure 3 and Figure 4 The dimming element 50 is provided to cover the window 732. The dimming element 50 is used to modulate the sight mark light L1 so that the virtual image A' seen by the user after receiving the sight mark light L1 is located on the side of the display screen 11 away from the dimming element 50. Specifically, in this embodiment, the dimming element 50 is provided on the inner side of the support frame 73 and covers the window 732. The dimming element 50 is specifically a Fresnel lens. The sight mark pattern A seen by the user through the dimming element 50 is an enlarged 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 A' of the sight mark pattern A at a farther position from the dimming element 50, thereby making the user's line of sight focus on a farther position, thereby facilitating the acquisition of the user's far pupil distance.

[0058] Please refer to Figure 1 and Figure 2The housing 71 at least accommodates the support frame 73 and is made of an opaque material to prevent external ambient light from interfering with the user's focus on the sight mark pattern A. The housing 71 can also accommodate the detection module 30. At least the portion of the housing 71 corresponding to the image acquisition module 31, the window 732, and the lighting element 33 is made of a transparent material.

[0059] 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.

[0060] The eyeglass frame analyzer 100 provided in the embodiment of the present application can form an optotype pattern A on the display screen 11 by providing an optotype module 10, 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 pupillary height can be calculated based on the image, avoiding the use of additional 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 the pupillary distance and pupil height.

[0061] 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; as well as The detection module is arranged on one side of the sight mark module and is used to obtain an image of the user's face for calculating the user's pupil distance and / or pupil height.

2. The eyeglass frame analyzer according to claim 1, wherein: It also includes a shell, the sight mark module is accommodated in the shell, and a window is opened on the shell. The window is arranged corresponding to the display screen, and the sight mark light can be emitted to the outside of the shell through the window.

3. The eyeglass frame analyzer according to claim 2, wherein: It also includes a dimming element, which covers the window and is used to modulate the sight mark light so that the virtual image seen by the user after receiving the sight mark light is located on the side of the display screen away from the dimming element.

4. The eyeglass frame analyzer according to claim 2, wherein: The detection module is arranged on the outside of the shell, and the detection module includes a plurality of image acquisition modules, and the plurality of image acquisition modules are arranged in sequence on one side of the window.

5. The eyeglass frame analyzer according to claim 4, wherein: The detection module also includes a fixing frame, which is connected to the shell and bends and extends from both ends of the window in a direction away from the sight mark module; the multiple image acquisition modules are arranged on the fixing frame.

6. The eyeglass frame analyzer according to claim 5, wherein: The detection module also includes a plurality of lighting elements, which are arranged on the fixing frame and are used to provide lighting for the image acquisition module.

7. The eyeglass frame analyzer according to claim 2, wherein: A bracket is also included, and the bracket is connected to the shell to support the shell.

8. The eyeglass frame analyzer according to claim 7, 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.

9. The eyeglass frame analyzer according to claim 1, wherein: The sight mark pattern displayed on the display screen is a cross.

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

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