Measuring tool adaptive to progressive multifocal optical lens

Abstract

The utility model provides a measuring tool adaptive to a progressive multifocal optical lens, which mainly realizes the measurement in the pupil distance and pupil height direction. The tool structure comprises a main frame, and the main frame is provided with a transverse sliding rail channel and a longitudinal sliding rail channel. A longitudinal groove shading plate is arranged in the transverse sliding rail channel in a sliding mode, a longitudinal rectangular depth groove is formed in the longitudinal groove shading plate, a transverse groove shading plate is arranged in the longitudinal sliding rail channel in a sliding mode, and a transverse horn opening groove is formed in the transverse groove shading plate. According to the utility model, the slotted hole is adopted for the first time, and the light shielding plate structure with a large thickness is adopted to eliminate interference of foreign objects and light during measurement. The slotted holes formed in the shading plate are horn mouths, and eyeball sight can be guided easily. The movement stroke of the shading plate is large, and the extremely large stroke amount of the shading plate is achieved through the structural design to cover any point on the front frame mirror frame. The clamping structure groove is in a specific shape, and better matching of clamping matching stability and clamping depth is achieved. Unstable clamping is easily caused due to the fact that the shapes are not fit; and sight line interference is easily caused by too deep clamping.

Description

Technical Field

[0001] The utility model relates to the field of measuring tools, in particular to a measuring tool adapted for progressive multi-focal optical lenses. Background Art

[0002] Wearing optical glasses is common in China, and wearing optical glasses is extremely dependent on the measurement of the pupil distance and pupil height direction of the eyes. Chinese patent application number: CN201820667846.4 discloses an auxiliary pupil height measurement tool for near vision. Its technical solution includes: a pupil height measuring ruler, a protective frame and a pupil distance measuring ruler. The surface of the pupil height measuring ruler is provided with a scale label, and the surface of one side of the pupil height measuring ruler is fixedly connected with a buckle. One side of the pupil height measuring ruler is movably installed with a pupil distance measuring ruler, and the surface of the pupil distance measuring ruler is fixedly connected with a pressure block. The periphery of the pupil height measuring ruler is movably installed with a protective frame, and the interior of the protective frame is fixedly connected with a limiting block. The top of the protective frame is movably installed with a limiting rod, and one side of the bottom of the limiting rod is fixedly connected with an insert block. The utility model enables the device to be used for the measurement of pupil height and pupil distance through the combination of various structures.

[0003] There are some pupil height and pupil distance measurement tools on the market, but they are difficult to use. First, the user cannot focus and the focus point is inaccurate only by judging the focus point through the scale on the transparent plate. Second, when using it, a third party determines the fixed point position from a distance. Third, it is impossible to draw points directly on the lens, and there are subjective line of sight judgment errors and fixed point drawing errors. Fourth, the accuracy is affected by external line of sight and light interference. Traditional measurement tools cannot accurately draw points and are inaccurate due to the interference of external objects and light; therefore, we have made improvements to this and proposed a measurement tool suitable for progressive multifocal optical lenses. Utility Model Content

[0004] The purpose of the utility model is to address the problems raised by the existing background technology. In order to achieve the above-mentioned purpose of the utility model, the utility model provides the following technical solutions: a measuring tool adapted for progressive multifocal optical lenses, comprising a main frame, a transverse end cover plate, a straight tooth knob, a spring cover plate, and a clamping lower arm, wherein the main frame is provided with a transverse slide rail channel and a longitudinal slide rail channel, the longitudinal end cover plate knob is installed and fixed at the closed end of the longitudinal slide rail channel, the transverse end cover plate is arranged at the closed end of the transverse slide rail channel, and is characterized in that a transverse groove shading plate is slidably arranged in the longitudinal slide rail channel, the transverse groove shading plate is provided with a transverse horn opening groove, a longitudinal groove shading plate is slidably arranged in the transverse slide rail channel, and the longitudinal groove shading plate is provided with a longitudinal rectangular depth groove.

[0005] As a preferred technical solution of the utility model, the front end of the clamping lower arm is provided with a frame matching groove, the middle end of the clamping lower arm is provided with a through hole, and the rear end of the clamping lower arm is a rotating handle.

[0006] As a preferred technical solution of the utility model, the straight-tooth knob is installed on the horizontal end cover plate and the vertical end cover plate.

[0007] As a preferred technical solution of the utility model, the straight-tooth knob rotates in cooperation with the hole axis in the horizontal end cover plate at the longitudinal end.

[0008] As a preferred technical solution of the utility model, it also includes a silicone strip, which is installed on the moving groove of the shading plate and contacts and rubs with the straight-tooth knob.

[0009] As a preferred technical solution of the utility model, the main frame is provided with a transverse slide rail channel which is a moving channel for two longitudinal groove sunshades.

[0010] As a preferred technical solution of the utility model, the main frame has two longitudinal slide rail channels which are movement channels for two transverse groove sunshades.

[0011] As a preferred technical solution of the utility model, the clamping lower arm and the torsion spring are installed and matched through a spring cover plate.

[0012] As a preferred technical solution of the utility model, the straight-tooth knob contacts the silicone strips on the transverse groove shading plate and the longitudinal groove shading plate, and relies on friction and mechanical meshing for transmission.

[0013] As a preferred technical solution of the utility model, the transverse groove shading plate and the longitudinal groove shading plate are linearly movably connected in a slide rail channel formed by the main frame and the longitudinal end cover plate and the transverse end cover plate.

[0014] Compared with the prior art, the utility model has the following beneficial effects: In the scheme of the utility model: the slotted hole opened by the sunshade is a trumpet mouth (inverted bevel), which is conducive to guiding the sight of the eyeball. The sunshade has a large moving stroke, and the sunshade has an extremely large stroke through structural design, which almost covers any point on the front frame. The clamping structure groove is a specific shape, which refers to the shapes of a large number of front frames of glasses on the market, and achieves a better match between the stability of the clamping fit and the clamping depth. The shape does not fit easily and easily lead to unstable clamping; clamping too deep can easily lead to interference with sight. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the three-dimensional structure provided by the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the spur-tooth knob provided by the utility model;

[0017] Figure 3 A schematic diagram of the spring cover structure provided by the utility model;

[0018] Figure 4This is a schematic diagram of the structure of the silicone strip provided by the utility model;

[0019] Figure 5 A schematic diagram of the main structure provided by the utility model;

[0020] Figure 6 A rear view structural schematic diagram provided by the utility model;

[0021] Figure 7 The utility model is provided with a schematic diagram of a top view structure.

[0022] Indicated in the figure:

[0023] 1. Main frame; 2. Horizontal end cover; 3. Straight tooth knob; 4. Spring cover; 5. Clamping lower arm; 6. Horizontal slot shading plate; 61. Horizontal speaker opening slot; 7. Vertical slot shading plate; 71. Longitudinal rectangular depth slot; 8. Vertical end cover; 9. Torsion spring; 10. Silicone strip. DETAILED DESCRIPTION

[0024] To make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments.

[0025] Therefore, the following detailed description of the embodiments of the utility model is not intended to limit the scope of the utility model for which protection is sought, but merely represents some embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. It should be noted that, in the absence of conflict, the embodiments of the utility model and the features and technical solutions in the embodiments can be combined with each other. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0026] Example 1: Please refer to Figure 1-Figure 7 A measuring tool adapted for progressive multifocal optical lenses, comprising a main frame 1, a straight tooth knob 3, a spring cover plate 4, a clamping lower arm 5, a longitudinal end cover plate 8, and a transverse end cover plate 2. The main frame 1 is provided with a transverse slide rail channel and a longitudinal slide rail channel. The longitudinal end cover plate 8 knob is installed and fixed at the closed end of the longitudinal slide rail channel. The transverse end cover plate 2 is arranged at the closed end of the transverse slide rail channel. A longitudinal groove shading plate 7 is slidably arranged in the transverse slide rail channel. The longitudinal groove shading plate 7 is provided with a longitudinal rectangular depth groove 71. A transverse groove shading plate 6 is slidably arranged in the longitudinal slide rail channel. A transverse horn opening groove 61 is arranged on the transverse groove shading plate 6.

[0027] The front end of the clamping lower arm 5 is provided with a mirror frame matching groove, the middle end of the clamping lower arm 5 is provided with a through hole, and the rear end of the clamping lower arm 5 is a rotating handle. The spur-tooth knob 3 is installed on the horizontal end cover plate 2 and the vertical end cover plate 8. The spur-tooth knob 3 rotates in cooperation with the hole axis in the horizontal end cover plate 2 at the vertical end.

[0028] The silicone strip 10 is installed on the shading plate moving groove and contacts and rubs with the straight tooth knob 3. The main frame 1 is provided with a transverse slide rail channel as a moving channel for the two longitudinal groove shading plates 7. The main frame 1 has two longitudinal slide rail channels as moving channels for the two transverse groove shading plates 6.

[0029] The clamping lower arm 5 and the torsion spring 9 are installed and matched through the spring cover plate 4. The spur knob 3 contacts the silicone strips 10 on the horizontal slot shading plate 6 and the vertical slot shading plate 7, and is driven by friction and mechanical engagement. The horizontal slot shading plate 6 and the vertical slot shading plate 7 are linearly movable and connected in the slide rail channel formed by the main frame 1, the vertical end cover plate 8 and the horizontal end cover plate 2.

[0030] The slotted hole shading plate (hereinafter referred to as the slot) controls the sight direction so that the sight can only pass through the slot. The slot point is the position point. Use a brush to point at the slot point, which is the position point display. In this way, the measurement and display of the pupil height and pupil distance direction can be realized.

[0031] The slot point is determined by the XY axis coordinate system, and the slot point is the intersection of the horizontal slot and the vertical slot.

[0032] The clamping mechanism plays a positioning function to achieve fixed connection between the glasses and the tool. The horizontal groove shading plate 6 moves up and down to determine the position of the pupil height direction in the Y-axis direction, and the vertical groove shading plate 7 moves left and right to determine the position of the pupil distance direction in the X-axis direction.

[0033] Shade plate moving structure: the straight-tooth knob 3 and the silicone rectangular strip on the shading plate are frictionally driven.

[0034] Frame clamping structure: The front frame of the glasses is mechanically clamped by the clamping upper and lower arms, the upper and lower arms have grooves in the shape of the front frame, and the elastic force is provided by the torsion spring 9.

[0035] The slotted hole of the sunshade is a trumpet-shaped chamfered angle, which is conducive to guiding the eye's sight.

[0036] The visor has a large movement stroke, and the structural design enables the visor to have an extremely large stroke, which can almost cover any point on the front frame.

[0037] The groove of the clamping structure is a specific shape, which refers to the shapes of a large number of eyeglass front frames on the market, achieving the best match between the stability of the clamping fit and the clamping depth. If the shape does not fit, it is easy to cause unstable clamping; if the clamping is too deep, it is easy to cause visual interference.

[0038] Main frame 1: 1 piece in total. With 1 transverse slide rail channel as the moving channel for 2 longitudinal slot sunshades 7. With 2 longitudinal slide rail channels as the moving channels for 2 transverse slot sunshades 6.

[0039] Horizontal slotted visor 6: 2 pieces in total, left and right. With a trumpet opening slot, it can be moved in the Y-axis direction. It is used as a secondary element for measuring the pupil height direction and guiding the line of sight with the trumpet opening.

[0040] Vertical slot shading plate 7: 2 pieces on the left and right. With rectangular depth slot, can be moved in the X-axis direction. Used as the pupil distance direction measurement and depth to exclude extraneous light, moving secondary element.

[0041] Longitudinal end cover plate 8: 2 pieces on the left and right, with mounting holes for the spur knob 3. Serves as the fixing position for the knob and the closed end of the longitudinal slide rail channel.

[0042] Horizontal end cover plate 2: 1 piece in total. Closed end of the horizontal slide channel.

[0043] Clamping lower arm 5: There are 2 pieces on the left and right, with a groove for matching the frame at the front end, a through hole in the middle end, and a rotating handle at the rear end. It plays the role of clamping the frame and rotating the secondary element.

[0044] Spring cover plate 4: There are two pieces on the left and right sides, which are used to clamp the lower arm 5 and the torsion spring 9 for installation.

[0045] Torsion spring 9: 2 pieces on the left and right, providing elastic force.

[0046] Silicone strips 10: 4 in total. Installed on the shading plate moving groove. Contact and rub with the straight tooth knob 3 to move the secondary element.

[0047] Straight-tooth knobs 3: 4 in total, mounted on the horizontal and vertical end covers 8. Rotating secondary elements

[0048] Slotted holes or hole visors determine or control the line of sight and exclude the influence of foreign objects and light.

[0049] The chamfers of the slots in the sunshade guide the eye.

[0050] The larger slot depth of the visor can reduce the interference of foreign objects and sight. The visor has a large movement limit and can cover almost all areas of the glasses frame. The shape of the groove of the clamping lower arm 5 is suitable for most products on the market and does not affect the measurement sight.

[0051] The determination of sight point and the measurement of pupil distance and pupil height are not possible with other products. First, the light shielding slots eliminate foreign objects and light interference. Second, the measurement points are objective and accurate, and the position points are directly drawn at the slots. Similar products determine the position points through sight after third-party observation.

[0052] Large measuring range. The shading plate has a much wider range of movement than other products on the market.

[0053] The principle of the utility model is to determine the sight penetration point: by shading and grooving, the uniqueness of the sight line is limited and controlled.

[0054] Movement of the sunshade: The spur-tooth knob 3 contacts the silicone strip 10 on the sunshade, and the transmission is based on friction and slight mechanical engagement.

[0055] Clamping device: The upper and lower arm grooves cooperate with the front frame of the glasses, and the torsion spring 9 provides elastic force to complete the positioning clamping.

[0056] The structural motion relationship of this utility model:

[0057] The shading plate moves linearly in the slide rail channel formed by the main frame 1 and the cover plate.

[0058] The clamping lower arm 5 rotates around the spring cover plate 4 with the column as the axis.

[0059] The spur-tooth knob 3 rotates in cooperation with the hole axis in the horizontal end cover plate 2 at the longitudinal end.

[0060] The process of using the utility model:

[0061] First, the left side transverse speaker opening slot 61 is completely shielded from light, and the right side transverse speaker opening slot 61 is completely exposed.

[0062] Positioning: Open the clamping lower arm 5 and clamp the tool on the front frame of the glasses.

[0063] One-sided shading: The shading plate on one side is adjusted to a fully enclosed state so that the horizontal and vertical slots are not connected, and the shading plate on the other side is adjusted so that the horizontal slot is fully exposed.

[0064] Determine the Y direction of the monocular line of sight: rotate the straight-tooth knob 3 to move the horizontal groove shading plate 6 to determine the Y direction of the line of sight.

[0065] Determine the X direction of the monocular line of sight: rotate the straight-tooth knob 3 to move the longitudinal slot shading plate 7 to determine the Y direction of the line of sight, which is now crossed to form a slot point.

[0066] Position point display: Use a brush to draw on the slot point, and the slot point is the position point.

[0067] Repeat the steps until the desired location is measured.

[0068] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present invention are included in the scope of the claims of the present invention.

Claims

1. A measuring tool adapted for progressive multifocal optical lenses, comprising a main frame (1), a transverse end cover plate (2), a straight tooth knob (3), a spring cover plate (4), and a clamping lower arm (5), wherein the main frame (1) is provided with a transverse slide rail channel and a longitudinal slide rail channel, the longitudinal end cover plate (8) knob is installed and fixed at the closed end of the longitudinal slide rail channel, and the transverse end cover plate (2) is arranged at the closed end of the transverse slide rail channel, characterized in that: A transverse groove shading plate (6) is slidably arranged in the longitudinal slide rail channel, and a transverse horn opening groove (61) is arranged on the transverse groove shading plate (6); a longitudinal groove shading plate (7) is slidably arranged in the transverse slide rail channel, and the longitudinal groove shading plate (7) is provided with a longitudinal rectangular depth groove (71).

2. A measuring tool for fitting progressive addition optical lenses according to claim 1, characterized in that: The front end of the clamping lower arm (5) is provided with a mirror frame matching groove, the middle end of the clamping lower arm (5) is provided with a through hole, and the rear end of the clamping lower arm (5) is a rotating handle.

3. A measuring tool for fitting progressive addition optical lenses according to claim 1, characterized in that: The spur-tooth knob (3) is mounted on the horizontal end cover plate (2) and the vertical end cover plate (8).

4. A measuring tool for fitting progressive addition optical lenses according to claim 3, characterized in that: The spur-tooth knob (3) rotates in cooperation with the hole axis in the horizontal end cover plate (2) at the longitudinal end.

5. A measuring tool for fitting progressive addition optical lenses according to claim 1, characterized in that: It also includes a silicone strip (10), which is installed on the shading plate moving groove and contacts and rubs with the straight tooth knob (3).

6. A measuring tool for fitting progressive addition optical lenses according to claim 5, characterized in that: The main frame (1) is provided with a transverse slide rail channel which is a movement channel for two longitudinal slot shading plates (7).

7. A measuring tool for fitting progressive addition optical lenses according to claim 1, characterized in that: The main frame (1) has two longitudinal slide rail channels which are movement channels for two transverse groove shading plates (6).

8. The measuring tool for fitting progressive addition optical lenses according to claim 1, characterized in that: The clamping lower arm (5) and the torsion spring (9) are installed and matched via a spring cover plate (4).

9. A measuring tool for fitting progressive addition optical lenses according to claim 5, characterized in that: The straight-tooth knob (3) contacts the silicone strip (10) on the transverse groove light shielding plate (6) and the longitudinal groove light shielding plate (7), and is driven by friction and mechanical meshing.

10. A measuring tool for fitting progressive addition optical lenses according to claim 9, characterized in that: The transverse groove shading plate (6) and the longitudinal groove shading plate (7) are linearly movably connected in a slide rail channel formed by the main frame (1) and the longitudinal end cover plate (8) and the transverse end cover plate (2).

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