JP2014071420A - Dummy lenses for eyeglass frames, and eyeglass frames - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable the left and right pupillary axes of eyeglass frame wearers to be determined easily with acceptable accuracy to appropriately lay out lenses, particularly progressive power lenses, at the point of purchase in an optician's shop or the like.SOLUTION: Each of left and right dummy lenses 5a and 5b of an eyeglass frame 1 having left and right rims 2a and 2b and a bridge 3 is provided with one horizontal reference line 6a or 6b representing its geometrically vertical center position, one vertical reference line 7a or 7b and a horizontal auxiliary line 8a or 8b. The vertical reference line, orthogonally crossing the horizontal reference line, is arranged at 1/2 of a prescribed standard inter-pupil distance (PD=64 mm) from the center of bridge; the horizontal auxiliary line, orthogonally crossing the vertical reference line, is shorter and/or thicker than and is arranged above the horizontal reference line by a short vertical distance of only h=3 mm.

Description

  The present invention relates to a dummy lens mounted on a spectacle frame before the spectacle lens is framed, and a spectacle frame mounted with the dummy lens.

  In general, a spectacle frame that is commercially available at a spectacle store or the like is equipped with a temporary lens called a dummy lens, such as an insignificant plastic material. The dummy lens is used to prevent deformation of the eyeglass frame during store display, storage, and transportation, and to give the eyeglass frame a texture before use. Remove the eyeglass lens from the eyeglass frame when discarding it. Is done. On the other hand, for eyeglass lenses, near- or far-distance single-focus lenses, multifocal lenses having a plurality of field parts with different refractive indexes, and recently, for example, the refractive index between the distance and near-field parts. A progressive multifocal lens (or a progressive power lens) in which the boundary is removed by progressively changing is widely used.

  A spectacle frame including a dummy lens that functions as a lens pattern for grinding the outer shape of a single focus lens is known (see, for example, Patent Document 1). In this dummy lens, a center hole that indicates the pupil position of the spectacle wearer is provided at the intersection of the horizontal reference line and the vertical reference line. The spectacle lens is cast into a lens so that its optical axis matches the center hole of the dummy lens.

  A spectacle frame in which a graduation mark perpendicular to the width direction of the rim is formed on at least one surface of the left and right dummy lenses is known (see, for example, Patent Document 2). This scale mark is provided along the edge on the ear side of the dummy lens. The optician sees the eyeglass frame that the customer is trying on from the front, and numerically measures the pupil vertical level position from the scale mark. Using this measured value and the interpupillary distance obtained by the PD measuring device, the spectacle lens is processed so that the lens optical axis matches the appropriate position.

  Eye point combining eyeglass frame with eye mark measurement scale printed in the vertical and horizontal direction around the central part of the dummy lens and a digital camera, computer, display device and / or printing machine A measurement system has been proposed (see, for example, Patent Document 3). In this system, the eyeglass frame worn by the subject is photographed with a digital camera from the front, and the pupil position of the subject is read from the eye point measurement scale on the acquired image, and the eye is placed on the actual dummy lens surface from the read value. Mark the point mark and shape the eyeglass lens so that this mark is at the center.

  The progressive multifocal lens is laid out according to the shape of the eyeglass frame so that the wearer's distant line of sight passes through the distance point eye point and the near line of sight passes through the near point eye point. There is a need. For this purpose, the horizontal and vertical lines indicating the distance center position of the lens, the distance eye point hole of the small circle at the intersection of them, the geometric center horizontal line of the lens, and the near circle position corresponding to the near center position of the lens A frame assisting tool in which an eye point hole is provided in a transparent sheet has been proposed (see, for example, Patent Document 4). This framing aid is temporarily mounted on the dummy lens of the spectacle frame, viewed by the spectacle frame wearer from a distance, and the operator's eyes are aligned so that the center of the distance eyepoint hole coincides with the center of the pupil. Adjust while watching. After this, a frame assisting tool is attached to the dummy lens, or the center position of the distance and near eyepoint holes is marked, and the eyeglass lens is laid out using this.

  In the transparent sheet-like frame assisting tool similar to Patent Document 4, a near eyepoint area consisting of a vertically long notch is provided instead of a small circle neareyepoint hole, and a distance eyepoint area is adjacent to it. There is known one provided with an identification mark for displaying a distance (for example, see Patent Document 5). Similarly, after adjusting the center of the distance eye point hole to match the center of the pupil of the wearer, the frame assisting tool is further viewed from the near eye of the wearer, and the spectacle operator identifies from the center of the pupil. Check the near eye point position with the mark.

  Furthermore, there is known a pupil center confirmation recording apparatus for confirming the pupil center of a spectacle wearer so as to coincide with the optical center of the spectacle lens (see, for example, Patent Document 6). This device takes into account that the objective pupil center when the measurer sees both eyes of the spectacle wearer in the spectacle frame and the subjective pupil center when the spectacle wearer sees a distant view are shifted. To determine the pupil center. For this purpose, a first marking unit that marks the left and right objective pupil centers on the dummy lens of the spectacle frame, a second marking unit that indicates the same mark in front of the left and right pupils of the spectacle wearer, A pointer having a third marking portion for marking the center of the subjective pupil on the dummy lens is movably attached to a guide body attached to the spectacle frame via an adjuster.

Japanese Utility Model Publication 2-41611 Japanese Utility Model Publication No. 2-131723 JP 2011-81248 A Japanese Utility Model Publication No. 63-120225 Utility Model Registration No. 2503770 Japanese Patent No. 3363425

  Various types of progressive multifocal lenses are provided in the arrangement of the distance portion and the near portion, the length of the intermediate portion where the power changes progressively, that is, the progressive zone length. When laying out the progressive multifocal lens, it is important to accurately confirm the positions of the distance and near pupil centers of the wearer for the spectacle frame selected by the spectacle wearer. In addition, when the distance and near eyepoints of the spectacle lens are arranged with good symmetry between the left and right rims of the spectacle frame, the lens performance is better, there is no distortion of the image with the left and right lenses, and more It is advantageous in that glasses can be worn comfortably.

  However, in general, human face features cannot be symmetrical in nature. In fact, the shape and position of the nose on which the nose pad of the eyeglass frame is placed, the shape and height of the ears on which the temple is hung, vary, and the position of the eye with respect to the position of the nose is often not symmetrical. The position is not necessarily the same. In the field such as eyeglass stores, the performance of the eyeglass lens is optimally exhibited, the eyeglasses are comfortable and comfortable to wear, and the appearance when wearing eyeglasses, that is, the position of the eyeglasses on the face and the right and left tilt of the eyeglass frame, etc. The eyeglass frame is fitted by an eyeglass engineer so as to be optimal. However, this fitting is not intended for the layout of the spectacle lens, and therefore it cannot be expected that the distance and near eyepoints of the left and right spectacle lenses are arranged symmetrically on the left and right.

  The device described in Patent Document 6 is for confirming the pupil center of a spectacle wearer in the layout of a progressive multifocal lens, but the structure and operation of the device itself are very complicated. Therefore, the task of determining the pupil center of the spectacle frame wearer for each of the left and right rims of the spectacle frame is not only cumbersome and time consuming and takes a relatively long time, but also requires some skill. There is a problem that the required skill is required.

  Needless to say, it is not appropriate to use the dummy lens described in Patent Documents 1 and 2 for application to a single focus lens as a lens pattern in the layout of a progressive multifocal lens. In addition, since the eye point measurement system described in Patent Document 3 requires additional devices such as a digital camera, a computer, a display device, and a printing machine, the entire system is complicated and expensive, and requires a relatively large occupied space. . In addition, it is necessary to take a relatively long and troublesome work that is troublesome and troublesome, such as photographing the subject's face with a digital camera, reading the scale on the image using a ruler, etc., and marking points on the surface of the dummy lens. Work requires skilled skills.

  The transparent sheet-like frame assisting tools described in Patent Documents 4 and 5 are small circles having a diameter of only 4 mm in accordance with a human pupil diameter in which the distance and near eyepoint holes generally vary between about 2 mm and 8 mm. It is formed with. The operation of moving the frame assisting tool so that the small circle coincides with the center of the pupil while looking at the eye of the wearer through the dummy lens is very troublesome and not easy. In addition, the distance eyepoint position on each side of the left and right rims until a frame assisting tool is actually attached to both the left and right dummy lenses, or until it is marked through the distance and near eyepoint holes. It is difficult to grasp whether or not the distance and / or near eyepoint positions between the left and right rims are unbalanced more than expected.

  The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to have a complicated structure and / or operation when a spectacle lens is laid out at a site such as a spectacle store. Without the need for complicated equipment and equipment, and without troublesome and time-consuming work or long hours, even for a technician with a relatively low level of skill and skill, relatively easily and as accurately as possible, An object of the present invention is to provide a dummy lens of a spectacle frame that can confirm the pupil center of a spectacle frame wearer. In particular, according to the present invention, when laying out a bifocal eyeglass lens such as a progressive multifocal lens, the distance eyepoint of the left and right eyeglass lenses, preferably the near eyepoint is further symmetrical between the left and right rims. It is an object of the present invention to make it possible to confirm the left and right pupil centers of a spectacle frame wearer so that the eyeglass frame wearer can be placed at a more appropriate position.

  Furthermore, the objective of this invention is providing the spectacles frame provided with such a dummy lens.

In order to achieve the above object, the dummy lens of the spectacle frame of the present invention includes spectacles provided with left and right lens holding portions for holding the left and right spectacle lenses and a bridge portion for supporting the nose side of the left and right spectacle lenses. In the frame, a pair of left and right dummy lenses held by the left and right lens holding portions,
Each dummy lens includes one horizontal reference line representing the geometric vertical center position of the dummy lens, one vertical reference line orthogonal to the horizontal reference line, and one orthogonal to the vertical reference line. Horizontal auxiliary lines are provided respectively.
Each vertical reference line is arranged at ½ of a predetermined standard pupil distance from the center of the bridge portion,
The horizontal auxiliary lines are arranged at a slight distance above the horizontal reference line.

  In this way, the horizontal reference line, the vertical reference line, and the horizontal auxiliary line are assumed to be the dummy lenses, and in particular, the distance eye point and the wearer's pupil center are expected in the layout of the bifocal spectacle lens such as a progressive multifocal lens. By providing the regions in consideration, the spectacles engineer can visually grasp the relative positional relationship between these lines and the left and right pupils of the spectacle frame wearer at the site such as a spectacle store. In particular, the positions of the left and right pupil centers can be grasped from the positions of the vertical reference line and the horizontal auxiliary line described above, including the sense of distance from the horizontal / vertical reference line and the horizontal auxiliary line. Therefore, even if the skill and skill level of the spectacles engineer are relatively low, the center of the left and right pupils of the spectacle frame wearer can be confirmed relatively easily and as accurately as possible. An eyeglass engineer simply has to manually write an eye point mark on the surface of each dummy lens with a pen or the like in accordance with the confirmed center position of the left and right pupils, and the structure and / or operation is complicated and expensive. This is advantageous because it does not require troublesome, troublesome work, and does not require a long time. Furthermore, the positional relationship between the left and right pupil centers and the corresponding horizontal reference line, vertical reference line, and horizontal auxiliary line can be easily compared, and the distance eyepoints of the spectacle lens can be set appropriately in the left and right rims. It can be arranged in a suitable position with a good balance between left and right.

  In some embodiments, the horizontal auxiliary line is located 2-4 mm above the horizontal reference line. In many of the progressive multifocal lenses on the market, the distance eye point is arranged at a height of about 2 to 4 mm upward from the geometric center of the lens. It is very effective as an index for confirming the pupil center of the spectacle frame wearer so that the geometric center of the lens is always near the geometric horizontal center position of the lens shape of the left and right rims.

  In another embodiment, the predetermined standard interpupillary distance for placing the vertical reference line is in the range of 60-65 mm. As described later, the distance between pupils of general Japanese adults is in the range of 56 to 72 mm, the average value of adult males is 64 mm, and the average value of adult females is 62 mm. Since the pupil center of the spectacle frame wearer is always near the vertical reference line by setting a predetermined standard interpupillary distance corresponding to the vertical reference line, the vertical reference line is used to confirm the pupil center of the spectacle frame wearer. It is very effective as an index.

  In some embodiments, the horizontal auxiliary line can be shorter and / or thicker than the horizontal auxiliary line. This makes it possible to recognize the horizontal auxiliary line clearly distinct from the horizontal reference line, which is more advantageous as an index for the spectacle engineer to confirm the pupil center of the spectacle frame wearer.

  According to another aspect of the present invention, the dummy lens according to the present invention includes the left and right lens holding portions for holding the left and right eyeglass lenses and the bridge portion for supporting the nose side of the left and right eyeglass lenses. A spectacle frame attached to the left and right lens holders is provided. As a result, at the site of a spectacle store or the like that sells spectacle frames, the spectacles engineer can confirm the center of the left and right pupils of the spectacle frame wearer relatively easily and as accurately as possible for the layout of the spectacle lenses. it can.

1 is a front view of a spectacle frame equipped with a dummy lens according to a preferred embodiment of the present invention. The front view which shows the wearing condition of the spectacles frame of FIG.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The left and right in the eyeglass frame of the present embodiment means the left and right viewed from the wearer side. That is, the left and right in the description of the present embodiment are opposite to the actual left and right on the accompanying drawings.

  FIG. 1 shows a spectacle frame equipped with a dummy lens according to an embodiment of the present invention. The spectacle frame 1 of the present embodiment has a full rim type structure, and a pair of left and right rims 2a and 2b, a bridge 3 that connects the left and right rims on the nose side, and ear-side ends of the left and right rims, respectively. Combined armor 4a and 4b. The left and right rims 2a and 2b hold a pair of left and right dummy lenses 5a and 5b according to the present invention, respectively. The spectacle frame 1 further includes temples that are attached to the respective armatures through hinges so as to be opened and closed, and nose pads that are respectively attached to the nose side end portions of the left and right rims. Omitted for simplicity.

  The dummy lenses 5a and 5b are formed of a transparent synthetic resin material and have an outer peripheral shape corresponding to the lens shape of the spectacle lens to be held on the left and right rims. On the surface of each dummy lens 5a, 5b, one horizontal reference line 6a, 6b, one vertical reference line 7a, 7b orthogonal to the horizontal reference line, and one horizontal reference line orthogonal to the vertical reference line. Auxiliary lines 8a and 8b are provided. The horizontal reference line represents the geometric vertical center position of the dummy lens, that is, 1/2 of its height H. The vertical reference line is arranged at a half of a predetermined standard pupillary distance PD from the center of the bridge 3. The horizontal auxiliary line is disposed at a height separated from the horizontal reference line by a slight distance h. These lines can be provided, for example, by printing on the surface of the dummy lens or by engraving fine grooves.

  In this embodiment, the predetermined standard interpupillary distance PD is set corresponding to this value assuming that the average interpupillary distance of a Japanese adult is 64 mm. The distance between the pupils of a general Japanese adult is 56 to 72 mm, the average value for adult males is 64 mm, and the average value for adult females is 62 mm (for example, “Japanese anthropometric data” , Human Life Engineering Research Center, 1997). Therefore, the standard interpupillary distance PD is not necessarily limited to 64 mm, and is preferably set in a range not far from the average value, for example, in a range of 60 to 65 mm. Further, the standard interpupillary distance PD can be made different between the glasses frame for adult men and the glasses frame for adult women. Further, since the interpupillary distance of children changes with age, the standard interpupillary distance PD can be set appropriately in accordance with the size of the spectacle frame for children, for example, the full width of the front part.

  Further, the horizontal reference lines 6a and 6b extend longer than ½ or more of the width of the dummy lens, but may be provided over the entire width of the dummy lens. The vertical reference lines 7a and 7b are substantially equal in length up and down from the horizontal reference line, and the entire length is set to be approximately ½ of the height H of the dummy lens. It may be provided.

  In this embodiment, the height h of the horizontal auxiliary lines 8a and 8b from the horizontal reference line is set to 3 mm. In many of the progressive multifocal lenses on the market, the distance eye point is disposed at a height of about 2 to 4 mm above the geometric center of the lens. Correspondingly, the height h is preferably selected in the range of 2 to 4 mm, and is not necessarily limited to 3 mm. By setting the height h of the horizontal auxiliary line in this way, in the layout of a progressive multifocal lens, the geometric center can always be located near the geometric horizontal center position of the lens shape of the left and right rims. it can. It is not preferable that the horizontal auxiliary line is far away from the horizontal reference line because a sense of distance from each of these lines may fade or disappear when the pupil center is confirmed. As long as this sense of distance is obtained, the height h may be outside the range of 2 to 4 mm.

  As shown in the figure, the horizontal auxiliary lines 8a and 8b are shorter than the horizontal reference line and extend from the vertical reference line to the left and right to a length substantially equal to the height h. Further, the line widths of the horizontal auxiliary lines 8a and 8b are explicitly thicker than those of the horizontal reference line and the vertical reference line. Thereby, the spectacles engineer can recognize the horizontal auxiliary line distinctly from the horizontal reference line. In this embodiment, the horizontal reference line and the vertical reference line have a line width of 0.2 mm, whereas the horizontal auxiliary line has a line width of 0.35 mm. Needless to say, the line width of each line is not limited to these values. In another embodiment, the horizontal auxiliary line can be provided longer. In addition, the horizontal, vertical reference line, and horizontal auxiliary line may be drawn in whole or in part by a broken line or a one-dot chain line, for example, other than the solid line in the above embodiment.

  FIG. 2 shows from the front the main part in a state in which the customer wears the eyeglass frame 1 of FIG. In practice, at the site of a spectacle store or the like, before the spectacle lens layout, the selected spectacle frame 1 is worn by the customer, and the spectacle frame is preliminarily fitted. This fitting has been performed by an eyeglass engineer in the past, and the width and tilt angle of the left and right temples, the degree of modern contact, Adjust the nose pad spacing, height, contact condition, etc. The state of the eyeglass frame includes whether the eyeglass frame is not too high or too low with respect to the wearer's eyes, and whether the eyeglass frame is tilted to the left or right or to the left or right.

  Next, the wearer of the spectacle frame 1 is caused to see far away, and the right and left eyes 10a and 10b are viewed directly from the front by the spectacles engineer with the same visual line height, and the positions of the pupils 11a and 11b are confirmed. As described above, the left and right dummy lenses 5a and 5b are provided with the horizontal reference lines 6a and 6b, the vertical reference line 7a, 7b and horizontal auxiliary lines 8a and 8b are provided. Therefore, the spectacles engineer can recognize the relative positional relationship between the left and right pupils 11a and 11b of the spectacle frame wearer who is looking far and the horizontal and vertical reference lines and the horizontal auxiliary line.

  In particular, the horizontal auxiliary lines 8a and 8b are made wider than the horizontal reference line, so that the positional relationship between the horizontal auxiliary line and the left and right pupils can be easily grasped by distinguishing from the horizontal reference line. . Further, by shortening the length of the horizontal auxiliary line as described above, it is possible to easily and clearly grasp the sense of distance from the vertical reference line at the center of the left and right pupils from the positional relationship with the horizontal auxiliary line. Can do. As described above, the dummy lens according to the present invention makes it possible to easily and comparatively accurately confirm the positions of the left and right pupils 11a and 11b in the distance view inside the left and right rims 2a and 2b, respectively.

  In addition, since the horizontal and vertical reference lines and horizontal auxiliary lines on the dummy lens are formed as thin lines as described above, the customer copies his / her face into a mirror and passes the dummy lens through the eyeglass frame. There is no hindrance or difficulty in viewing or feeling uncomfortable when looking at the degree of hanging of 1. In view of this, the horizontal and vertical reference lines should be about ½ of those as in this embodiment, rather than being provided over the entire width or height of the dummy lens (or the rim). preferable.

  In this state, the eyeglass technician marks the eye point marks 12a and 12b on the surfaces of the dummy lenses 5a and 5b in accordance with the center positions of the left and right pupils 11a and 11b. The marking is performed by manually writing small black circles as shown in the figure using a felt pen of oil-based ink, for example, from the front side of the spectacle frame 1.

  In FIG. 2, the spectacle frame 1 is arranged substantially horizontally. On the other hand, the pupil 11a of the left eye 10a has its center (12a) located just below the horizontal auxiliary line 8a and immediately to the nose side of the vertical reference line 7a, and the pupil 11b of the right eye 10b has its center ( 11b) is located slightly on the horizontal reference line 6b and slightly closer to the nose side than the vertical reference line 7b. Such a difference in the height between the left and right eyes and a shift in the left and right are because, as described above, the human face is not completely symmetrical on the left and right. In addition, the difference in height between the pupil centers (12a, 12b) and the left-right asymmetry of this level may cause distortion in the image or the size of the image on the left and right even if it is directly reflected in the eyeglass lens layout. It is considered that there is no possibility of causing troubles such as different.

  When the face of the spectacle frame wearer itself is large and asymmetrical, or depending on how the preliminary fitting is adjusted, the position of the pupil in the left and right rims 2a and 2b is greatly shifted from that in FIG. It can be very different or the degree of asymmetry can be large. In this case, the eyeglass engineer similarly determines the difference in height between the left and right pupils of the eyeglass frame wearer and the degree of asymmetry using the dummy lens of the present embodiment, the pupil position, the horizontal and vertical reference lines, and the horizontal auxiliary line. Can be easily and clearly grasped from the relative positional relationship.

  When it is determined that the optical performance of the spectacle lens is exhibited to the extent that there is substantially no problem in the use of spectacles even if the left and right far eyepoints are determined in such a state and the spectacle lens is laid out The eyeglass engineer may mark the eye point marks according to the center positions of the left and right pupils as they are. However, when the optical performance of the spectacle lens is not sufficiently exhibited and it is expected that the use of the spectacles will be hindered, the spectacles engineer performs re-fitting of the spectacle frame 1 so that the right and left of the spectacle frame wearer After adjusting the positions of the left and right rims 2a, 2b with respect to the pupil, the eye point mark is marked. The adjustment of the height and symmetry of the left and right pupils by this re-fitting is performed easily and with higher accuracy by using or referring to the horizontal and vertical reference lines and horizontal auxiliary lines of the dummy lenses 5a and 5b. be able to.

  Contrary to the embodiment of FIG. 2, the spectacle wearer may have the same left and right eye height, and the spectacle frame 1 may be tilted left and right. For example, the position and shape of the nasal bone may be asymmetrical or irregular, or may depend on the comfort and preference of the wearer. Also in such a case, the spectacles engineer similarly determines the inclination of the spectacle frame 1 and the left and right positions from the relative positional relationship between the center of the left and right pupils of the spectacle frame wearer and the horizontal and vertical reference lines and the horizontal auxiliary lines. The shift can be easily and clearly grasped, and can be easily adjusted with high accuracy.

  In this manner, the eyeglass lenses are laid out using the dummy lenses 5a and 5b marked with the eye point marks 12a and 12b, and the outer peripheral shape thereof is processed into a desired target lens shape. At this time, it is not always necessary to match the distance eye point of the spectacle lens with the position of the eye point mark. For example, depending on the rim shape and size of the spectacle frame selected by the customer, priority may be given to placing both the far eyepoint and the near eyepoint of the progressive multifocal lens in the rim. Even in this case, according to the present invention, since the center position of the wearer's pupil can be accurately grasped from the eye point mark, the spectacles engineer can perform the layout of the spectacle lens without impairing the lens performance. It is. Next, the spectacle lens whose outer periphery has been processed is framed in the left and right rims 2a and 2b of the spectacle frame 1 from which the dummy lens has been removed to produce desired spectacles.

  The present invention is not limited to the above embodiments, and can be implemented with various modifications or changes within the technical scope thereof. For example, the present invention is a spectacle frame other than the full rim type of the above embodiment, as long as it includes left and right lens holding portions that hold the spectacle lens and a bridge portion that supports the nose side of the spectacle lens. The present invention can be similarly applied to eyeglass frames having other types of structures such as a half rim, an under rim, and a rimless frame. Needless to say, the present invention can also be applied to a spectacle frame having a structure without a temple, such as a nose spectacle.

DESCRIPTION OF SYMBOLS 1 ... Eyeglass frame, 2a, 2b ... Rim, 3 ... Bridge, 4a, 4b ... Yoroi, 5a, 5b ... Dummy lens, 6a, 6b ... Horizontal reference line, 7a, 7b ... Vertical reference line, 8a, 8b ... Horizontal assistance Line, 10a, 10b ... eye, 11a, 11b ... pupil, 12a, 12b ... eye point mark.

Claims (5)

A pair of left and right dummy held by the left and right lens holding portions in a spectacle frame comprising left and right lens holding portions for holding the left and right eyeglass lenses and a bridge portion for supporting the nose side of the left and right eyeglass lenses A lens,
Each dummy lens includes one horizontal reference line representing the geometric vertical center position of the dummy lens, one vertical reference line orthogonal to the horizontal reference line, and 1 orthogonal to the vertical reference line. Each with a horizontal auxiliary line of books,
Each of the vertical reference lines is arranged at a half of a predetermined standard pupil distance from the center of the bridge portion,
The dummy lens of a spectacle frame, wherein the horizontal auxiliary line is arranged at a slight distance above the horizontal reference line.   The dummy lens of the spectacle frame according to claim 1, wherein the horizontal auxiliary line is arranged at a position 2 to 4 mm above the horizontal reference line.   The dummy lens of the spectacle frame according to claim 1 or 2, wherein the predetermined standard interpupillary distance is in a range of 60 to 65 mm.   4. The eyeglass frame dummy lens according to claim 1, wherein the horizontal auxiliary line is shorter and / or thicker than the horizontal reference line.   The left and right lens holding portions for holding the left and right eyeglass lenses, and a bridge portion for supporting the nose side of the left and right eyeglass lenses, the left and right lens holding portions according to any one of claims 1 to 4. Eyeglass frame characterized by wearing a dummy lens.

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