KR102127663B1 - Apparatus for measuring major reference point of glasses - Google Patents

Abstract

The present invention relates to a glasses design point measuring apparatus. The glasses design point measuring apparatus of the present invention, in order for optically accurate preparation and processing of glasses, is provided in a form of a measuring jig mounted on a glasses frame in which basic fittings are completed. The glasses design point measuring apparatus includes a plurality of measuring rulers mounted on the glasses frame. The glasses design point measuring apparatus can accurately and quickly measure a design point including a pupillary distance, an optical center point height, and an inclination angle using the measuring ruler when setting the glasses design point using a method by in-point. According to the present invention, it is possible to improve accuracy and speed of preparation and processing of the glasses.

Description

Glasses design point measuring device {APPARATUS FOR MEASURING MAJOR REFERENCE POINT OF GLASSES}

The present invention relates to an eyeglass design point measuring device, and more specifically, in order to improve the accuracy and speed of the preparation and processing of eyeglasses, when setting the eyeglass design point, the method of using a point-of-spot is fixedly mounted on the frame with the basic fitting completed. It relates to a spectacle design point measuring device that accurately and quickly measures the wearer's pupil distance (PD), optical center point height (Oh), and tilt angle.

The wearing population of glasses is increasing year by year, and the use of glasses is also diversifying unlike before. The best glasses are good looking and comfortable to wear. In order to enhance the fit and corrective effect of the glasses, the fitting state must be stable so that the weight of the glasses is evenly distributed over the face contact area, and the design point and the optical center point of the glasses lens must be matched. The function of the glasses can be divided into correction and correction of refraction anomalies, correction of abnormalities in vision and abnormalities in vision. Good eyewear should be formulated to improve wearer's vision function better and more comfortably, as well as to correct wearer's refractive anomalies.

The causes of discomfort when wearing glasses include the incorrect frequency of the glasses and the incorrect preparation of the axis, the degree of coincidence between the pupil center and the lens optical center, the distance between vertices, and the change in the basic curvature of the lens. In particular, if the optical center of the eyeglasses and the pupil center do not coincide, this leads to a triggering obstruction, which may cause a decrease in corrected vision, eye fatigue, diplopia symptoms, dizziness, etc. have. In addition, the older the wearer is, the greater the difference from the previous glasses, the higher the frequency of the lens, the more sensitive the wearer feels. When the optical center point and the pupil center point of the spectacle lens do not coincide, stable fatigue such as headache and diplopia due to triggered incidence may occur, thereby providing a feeling of objection to the first person wearing the glasses.

In recent years, as the optical function of glasses is emphasized, the accuracy of preparation processing is required. For this, measuring the exact design point during the preparation of glasses can be said to be a very important preparation process. Here, the design point is to set the left and right distances and the upper and lower heights of both the eyeglass frame and the wearer's eyes before manufacturing the glasses, and includes a pupil distance (P.D), an optical center point height (Oh), and an inclination angle. The pupillary distance means the distance from the optical center point on the back of the lens to the center of the cornea when wearing glasses, and the optical center point refers to the place where light passes without breaking when light is transmitted through the glasses lens. In addition, the angle of inclination refers to the angle of inclination of the front and legs when the front and legs of the eyeglass frame are viewed from the side, and the front is placed vertically and the angle of inclination on the leg or the user wears glasses and the front and legs are facing upward.

Therefore, the need to accurately and quickly measure the main element pupil space distance (P.D), optical center height (Oh), and inclination angle when establishing eyeglass design points is being raised.

In general, the P.D and Oh measurements include the use of spectacles, the use of P.D meters, and the method of zero point. In practice, the design point is determined by the method of finding the P.D and Oh at the same time, and P.D is checked with a P.D meter and Oh is checked with an eyeglass or insertion scale. For example, when setting a design point by using a method mainly used in the field, there is a hassle of measuring PD and Oh again by using an eyeglasses to grind the magnetic field and erect an angle using a fully automatic jade humidifier. .

In addition, despite the fact that accurate P.D measurement is very important as a basic element of preparation processing, the measurement using the existing spectacles caused a lot of errors in measurement values such as parallax of the measurement and hand tremor.

Korean Registered Patent Publication No. 10-1398774 (Announcement date: June 27, 2014) Korean Registered Patent Publication No. 10-1932568 (Announcement date: December 27, 2018) Korean Patent Publication No. 10-2018-0019123 (Publication Date: February 23, 2018) Korean Registered Utility Model Publication No. 20-0471540 (Announcement date: February 28, 2014)

An object of the present invention is to provide a spectacle design point measuring device that is mounted on a spectacle frame on which basic fitting is completed to measure data related to the design point of the spectacles.

Another object of the present invention is to provide a spectacle design point measuring device capable of accurately and quickly measuring the pupil space distance (P.D), the optical center point height (Oh), and the inclination angle, which are the main elements when setting the design point of the spectacles.

Another object of the present invention is to provide a spectacle design point measuring device that measures a design point by being fixedly mounted on a spectacle frame on which basic fitting is completed by using a method based on a point of view when setting a design point of spectacles.

In order to achieve the above objects, the spectacle design point measuring apparatus of the present invention is mounted on the spectacle frame where the basic fitting is completed by using a method by a point of view when setting the spectacle design point of the spectacles, thereby determining the pupil distance, optical center point height and inclination angle of the spectacles. One feature is to quickly and accurately measure the design points involved. The spectacle design point measuring apparatus of the present invention can satisfy the optical element of the preparation of glasses, and can also improve the efficiency of preparation of glasses.

The spectacle design point measuring apparatus of the present invention according to this feature is formed on a front frame of a basic-fitted spectacle frame and is formed as a separate frame, and provided with a plurality of clip portions at different positions of the frame, inside the frame A holder for fixing each of the upper and lower rims of the eyeglass frame; And a horizontal ruler mounted on an upper portion of the cradle so as to be disposed on the front side of the cradle and having a measurement scale for measuring a pupillary distance (PD) of both eyes when setting a design point of the eyeglass frame, and perpendicular to each side of the horizontal ruler. It includes a measurement ruler that is vertically coupled to each other, and each has a vertical ruler formed with a measurement scale measuring the optical center point height (Oh) of the monocular.

In this aspect, the clip portion, the first and second clip portion is fixed to the upper rim, respectively, fitted in the lower direction from the front and rear of the upper rim; And third and fourth clip portions fitted to the upper rim from each of the front and rear surfaces of the lower rim to fix the lower rim, respectively.

In this aspect, the spectacle design point measuring apparatus further includes an inclination angle measuring ruler provided on at least one of both sides of the measuring ruler and having a measuring scale measuring the inclination angle of the spectacle frame.

As described above, the spectacle design point measuring apparatus of the present invention is provided to fix the measuring ruler to the spectacle frame using a clip, and to set the design point by a method using a point-in-time, so as to quickly and accurately measure the numerical value of the design point This is possible.

In addition, since the spectacle design point measuring device of the present invention is mounted on the spectacle frame, unlike the existing spectacles, it is possible to accurately and quickly measure PD and Oh at the same time, and it is also possible to measure the inclination angle. Not only can it be satisfied, but also the efficiency of preparation processing can be improved.

1 is a view showing the configuration of a spectacle design point measuring device according to the present invention;
Figure 2 is a view showing the configuration of the cradle shown in Figure 1,
3 is a view showing the configuration of the measurement ruler shown in FIG. 1, and
4 is a view showing a state in which the spectacle design point measuring device of the present invention is mounted on the spectacle frame.

The embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be interpreted as being limited by the examples described below. This embodiment is provided to more fully describe the present invention to those skilled in the art. Therefore, the shape of the components in the drawings is exaggerated to emphasize a clearer description.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to FIGS. 1 to 4.

1 is a view showing the configuration of the spectacle design point measuring apparatus according to the present invention, FIG. 2 is a view showing the configuration of the cradle shown in FIG. 1, and FIG. 3 is a view showing the configuration of the measurement ruler shown in FIG. 1 Figure 4 is a view showing a state in which the spectacle design point measuring device of the present invention is mounted on the spectacle frame.

1 to 4, the spectacle design point measuring apparatus 100 of the present invention is for optically correct preparation and processing of spectacles, for example, to the spectacle frame (200 of FIG. 4) in which the main fitting is completed. It is provided in the form of a jig for measurement to be mounted, and when setting the eyeglass design point using the method by centering, the pupil distance (PD), the optical center height (Op) and the inclination angle It is possible to accurately and quickly measure the design point including the. The spectacle design point measuring apparatus 100 of the present invention can improve the accuracy and speed of preparation and processing of spectacles.

To this end, the spectacle design point measuring device 100 of the present invention is an auxiliary measuring device for measuring the design point of the spectacle, and the front face of the spectacle frame 200 is completed in a state in which the basic fitting performed before the processing of the spectacle frame 200 selected by the customer is completed. It is mounted on. The spectacle design point measuring apparatus 100 includes a design ruler 150 for measuring a design point of spectacles, such as a pupil distance (PD), an optical center point height (Oh), and an inclination angle, and is mounted on the spectacle frame 200 Is provided to measure the design point of the glasses.

Specifically, the eyewear design point measuring apparatus 100 includes a holder 110 and a measuring ruler 150.

The cradle 110 is formed of one frame 111 having a shape similar to that of the spectacle frame 200 so as to be easily attached to and detached from the spectacle frame 200, and is measured with the spectacle frame 200 through the frame 111. The ruler 150 is combined. That is, the holder 110 is coupled to the measurement ruler 150 on the front of the frame 111, and the eyeglass frame 200 is coupled to the inside of the frame 111.

The frame 111 is provided with a horizontal support 112, a vertical support (114, 115) and a rotation support (116, 117).

The horizontal support 112 is formed to extend substantially longer than the horizontal length of the spectacle frame 200. In the horizontal support 112, a central protrusion 113 for indicating a center line with respect to the left and right directions of the spectacle frame 200 protrudes downward. The horizontal support 113 is provided with first and second clip portions 120 and 122 at positions spaced apart a predetermined distance from both sides of the central projection 113. Each of the first and second clip portions 120 and 122 is fixedly mounted to the upper rims (210 of FIG. 4) on each side of the spectacle frame 200. Each of the first and second clip portions 120 and 122 is fitted to the upper rim 210 from the top of each of the front and rear surfaces of the upper rim 210 of the spectacle frame 200, and is fixed to the upper rim 210, respectively. The horizontal supports 112 are formed with vertical supports 114 and 115 extending downwardly at each end at a predetermined length.

The vertical supports 114 and 115 are formed to extend substantially longer than the height of the spectacle frame 200. Vertical support (114, 115) is a pivoting support (116, 117) is hinged to each end. The pivoting supports 116 and 117 are coupled to the vertical supports 114 and 115 by one end of the hinge shaft coupling parts 130 and 132, and the third and fourth clip parts 124 and 126 are provided at the other end. The lower rim (212 in FIG. 4) of the spectacle frame 200 mounted on the cradle 110 is rotated in the vertical direction through the hinge shaft coupling portions 130 and 132 to be fixedly mounted and supported or separated. At this time, each of the third and fourth clip portions 124 and 126 is fitted from the bottom to the top in each of the front and rear surfaces of the lower rim 212, thereby fixing the lower rim 212, respectively.

Each of the first to fourth clip portions 120 to 126 is formed with fixed ends made of silicone on each of the front and rear surfaces of the spectacle frame 200, through which the upper rim 210 and the lower rim 212 of the spectacle frame 200 are formed. Fix each.

And the measurement ruler 150 measures the pupil's pupil distance (P.D), the optical center point height (Oh), and the inclination angle while being worn on the spectacle frame (200). That is, the measurement ruler 150 includes the pupil-selected eyeglass frame 200 in the state of the pupil's pupillary distance PD, and the optical center point height Oh from the lower rim 212 of the eyeglass frame 200 to the pupil. ). And the measurement ruler 150 measures the inclination angle from the side of the spectacle frame 200.

To this end, the measurement ruler 150 includes a horizontal ruler 152 for measuring a monocular P.D between the left and right pupils, and a vertical ruler 156, 158 for measuring Oh in both eyes. In addition, on the side of the measurement ruler 150, in order to adjust the aiming line of the wearer's eye to be perpendicular to the lens surface, the aiming line, which is the gaze direction of the eye of the wearer wearing the eyeglass frame 200 on the side of the eyeglass frame 200, and the lens surface of the eyeglass frame An inclination angle measuring ruler (not shown) is provided to measure the inclination angle formed by the vertical line at the time of the meeting and the side rim of the eyeglass frame 200 (214 in FIG. 4). Of course, the inclination angle measuring ruler may be provided on the vertical supports 114 and 115 of the cradle 110. In addition, the measurement ruler 150 includes a plurality of detachable parts 154 and 155 detachably attached to the horizontal support 112 of the cradle 110.

Here, the eye performs both eye movements with the rotation axis of the left and right eye rotation points. Most spectacle prescriptions, except for the prism prescription, require that the spectacle lens and the optical system become a coaxial optical system so that the optical axis passing through the optical center point of the spectacle lens passes through this eyeball rotation point to satisfy the optical elements of preparation and processing. To do this, in the preliminary stage of the preparation process, the horizontal distance between the left and right eye rotation points and the vertical distance from the lower rim of the eyeglass frame to the center of the pupil should be measured. The intersection of these two distances becomes a design point that coincides with the pupil during preparation processing. In the spectacle lens except for the prism prescription, the optical center point becomes the design point, and the optical axis of the lens passes the eye rotation point. The distance between the left and right eye rotation points is referred to as a reference P.D.

Therefore, the object to be prepared and processed is the left and right eyeglass lenses, so the design point that will coincide with the pupil center in all eyeglass prescriptions except the prism is called the optical center point of the lens. Therefore, the straight line distance between the optical center points of the left and right lenses becomes the horizontal data of the spectacle lens design. This is called preparation and processing P.D. The distance from the center of the nose ridge at the eye level to the optical center point of the left and right two spectacle lenses located about 12 mm away from the corneal apex is called monocular preparation and processing P.D. In the original glasses, except for the prism prescription, the prepared and processed P.D and the original P.D are the same.

Also, for the measurement of the optical center point height Oh, since the spectacle frame to be used has not been determined at the time of issuing the spectacle prescription, the position of the pupil center in the spectacle frame, or the vertical position of the corneal reflection image, is not known. That is, it is possible to know how high to come from the lower rim of the spectacle frame after the basic fitting of the spectacle frame. The height of the optical center point is not specified on the eyeglass prescription, but it is an important promise that the optician must accurately measure. Even if the position of the pupil center in the horizontal direction, that is, the horizontal design element, the pupil distance P.D, is correct, the optical element of the preparation is not satisfied unless the optical center height Oh is determined. In other words, the design point to be prepared is determined only when the vertical position of the pupil center, that is, the optical center point height Oh as a vertical design element and the pupil distance P.D value as a horizontal design element are simultaneously determined. In case of refractive inequality with different refractive powers of the right and left corrective lenses, Oh should be set more carefully. The optical center height Oh is related to the front horizontal plane bend angle and tilt angle. When the optical axis of the spectacle lens other than the prism prescription coincides with the line of sight of the eye and the line of sight of the eye passes vertically through the lens surface, astigmatism and the like is minimized, and the optical performance of the lens is at its best. This is called the rotation point condition. The angle of inclination must be adjusted so that the aiming line passes vertically from the viewpoint of the lens surface.

In addition, the inclination angle must be accurately adjusted so that the aiming line of the eye passes perpendicularly to the lens surface, that is, in order to satisfy the conditions of optical points and rotation points during preparation. The inclination angle is the angle formed by the vertical rim of the lens frame and the side rim of the spectacle frame by observing it from the side of the spectacle frame that is precisely fitted. It will grow. In everyday visual life, the aiming line does not face directly at the eye level, so it is slightly lower than the horizontal direction toward the eye level. In other words, as you see the ground about 5 to 6m ahead, the aiming line tilts slightly downwards, passing the point of view of the lens. In addition, when the gaze distance is close, the aiming line becomes further downward, so of course, the inclination angle must be increased in order to pass through the viewpoint of the spectacle lens vertically. When looking at a long distance in a natural position, you lean your head forward about 5 degrees, and the aiming line is about 5 to 7 degrees down, facing the ground 5 to 6 meters ahead. Therefore, in order to become vertical at the point where the aiming line meets the spectacle lens surface, the inclination angle of the original spectacles should be about 10 to 12 degrees. In near-glasses, the aiming line should be pointed further down than in Won-Yong to read, so the angle of inclination becomes larger, resulting in approximately 15 to 20 degrees.

Specifically, the horizontal ruler 152 is arranged side by side on the front surface of the horizontal support 111 of the cradle 110 and a P.D measurement scale is formed to measure P.D of the monocular on each of the left and right sides of the surface. The horizontal ruler 152 has a central groove 153 in the center corresponding to the central projection 113 of the cradle 110. Therefore, the horizontal ruler 152 has P.D measurement scales formed on the left and right surfaces along the center groove 153 to measure the P.D of each monocular.

The vertical rulers 156 and 158 have a surface coupled to both ends of the horizontal ruler 152 on the same plane and vertically extend a certain length in the downward direction. Each of the vertical rulers 156 and 158 is formed with an Oh measurement scale on the surface to measure Oh in both eyes.

The detachable portions 154 and 155 are fixed in opposite directions in which the horizontal rulers 152 and the vertical rulers 156 and 158 are respectively engaged, that is, perpendicular to the horizontal rulers 152 and consistent with the vertical rulers 156 and 158. The length is extended to be bent in the shape of a'U', and is fitted in a downward direction from the upper side on both sides of the horizontal support 111 of the mount 110 to mount the measurement ruler 150 to the mount 110.

In addition, the inclination angle measurement ruler (not shown) may be provided on at least one of the horizontal rulers 156 and 158, or at least one of the vertical supports 114 and 115 of the cradle 110. The ruler for measuring the inclination angle is formed by the vertical line at the point of view of the eye of the wearer wearing the spectacle frame 200 and the lens surface of the spectacle frame at the side of the spectacle frame 200 and the side rim 214 of the spectacle frame 200 Measure the angle of inclination. To this end, the inclination angle measurement ruler is provided with a transparent material and an inclination angle measurement scale is formed on the surface to measure the angle between the vertical line and the side rim 214 of the spectacle frame 200.

The glasses design point measuring apparatus 100 of the present invention, as shown in FIG. 4, when the holder 110 on which the measurement ruler 150 is mounted is mounted on the spectacle frame 200, the customer wears the spectacle frame 200 , Through the measurement ruler 150 while wearing the spectacle frame 200, the pupil distance PD, the optical center height Oh, and the inclination angle can be measured and confirmed.

Therefore, the spectacle design point measuring apparatus 100 of the present invention is a method in which the design point measurement using the spectacle and the design point measurement method by the in-situ are mixed, and a plurality of clip parts 120 to 126 are attached to the spectacle frame 200 in which basic fitting is completed. ) To fix and mount the measurement ruler 150 to the cradle 110, and using the measurement ruler 150 mounted to the cradle 110, the pupillary distance (PD), the optical center point height (Oh) and the inclination angle It is possible to quickly and accurately measure a design point including.

In the above, although the configuration and operation of the spectacle design point measuring apparatus according to the present invention are illustrated in accordance with the detailed description and drawings, these are merely examples and have been described, and various changes and within the scope not departing from the technical spirit of the present invention. Changes are possible.

100: glasses design point measuring device
110: cradle
111: frame
112: horizontal support
113: center projection
114, 115: vertical support
116, 118: rotating support
120 ~ 126: clip part
130, 132: hinge shaft coupling
150: measuring ruler
152: horizontal ruler
153: Center groove
154, 155: detachable part
156, 158: vertical ruler

Claims (3)

In the eyeglass design point measuring device:
It is formed of one frame that is mounted on and separated from the front of the basic fitted eyeglass frame, and is provided with a plurality of clip portions at different positions of the frame to fix each of the upper and lower rims of the eyeglass frame inside the frame; And
When installed at the top of the cradle so as to be disposed on the front of the cradle, when a design point of the eyeglass frame is set, a horizontal ruler with a measurement scale measuring a pupillary distance (PD) of both eyes, and vertically at both sides of the horizontal ruler Including;; vertically coupled to the vertical ruler, each measuring the optical center point height (Oh) of the monocular is formed downward and a measurement ruler having a plurality of detachable parts detachably attached to the cradle;
The clip portion,
First and second clip portions which are fitted in a downward direction from an upper portion of each of the front and rear surfaces of the upper rim to fix the upper rim, respectively; And
It includes; a third and a fourth clip portion that is fitted to the upper rim from the lower portion of each of the front and rear surfaces of the lower rim to fix the lower rim, respectively;
The cradle,
It is formed to extend longer than the horizontal length of the spectacle frame, and a central projection protruding in a downward direction indicating a center line for the left and right directions of the spectacle frame is protruded in the lower direction, and the first and A horizontal support provided with the second clip portion;
One end is formed on each end of the horizontal support, vertical support extending downward longer than the height of the eyeglass frame; And
It includes; a pivoting support having one end hinged to each other end of the vertical support and rotated vertically, and provided with the third and fourth clip portions at the other end;
The horizontal ruler is arranged side by side on the front surface of the horizontal support, a measurement scale is formed to measure the distance of the pupil of the monocular on each of the left and right sides of the surface, and a central groove is formed in the center in response to the central projection. Measure the pupillary distance of each monocular from
The vertical ruler is coupled to both ends of the horizontal ruler and vertically extends a certain length in a downward direction, and the optical center point of the monocular through a measurement scale measuring a height (Oh) of the optical center point formed on the same plane as the horizontal ruler. The height (Oh) was measured respectively; And
The detachable portion is extended to a certain length in the opposite direction in which the horizontal ruler and the vertical ruler are coupled, and is bent to fit in a downward direction from the upper side of both sides of the horizontal support, thereby wearing the measuring ruler on the holder Design point measuring device.
delete The method according to claim 1,
The eyeglass design point measuring device,
A transparent material is provided on at least one of both sides of the measuring ruler, and a vertical line and a side rim of the eyeglass frame are formed at the point where the aiming line of the eye of the wearer wearing the eyeglass frame and the lens surface of the eyeglass frame meet at the side of the eyeglass frame. A spectacle design point measuring device, characterized in that a measuring scale for measuring an inclination angle is further formed on the surface and further comprises an inclination angle measurement ruler for measuring the inclination angle.

Images