JP2009210753A - Spectacle lens inspection tool and spectacle lens inspection method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a spectacle lens inspection tool for right and left spectacle lenses to which the frame composing members of a rim-less spectacle frame are attached, the spectacle lens inspecting implement being used to check whether there is any significant difference between the positions of the characteristic parts of spectacle lenses and the joining positions of the frame composing members, and to provide a spectacle lens inspection method. <P>SOLUTION: Since the stage of a lens edging, lens holders 22 have been attached to the right and left spectacle lenses 1A and 1B produced by subjecting material lenses to the lens edging. The lens holders 22 are independently supported by the pair of support members 41 and 42. These support members 41 and 42 are disposed on the guide projection 43B of a base member 43. They are disposed using, as a reference, the upright face 55 of the guide projection 43B serving as a reference face for displacement between the characteristic parts 10. A displacement between the characteristic parts 10 is inspected by comparing the right and left spectacle lenses 1A and 1B. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a jig for inspecting misalignment between feature portions of left and right eyeglass lenses provided with feature portions at edge portions.

  Patent Document 1 and Patent Document 2 below show rimless spectacles that hold a lens without using a rim by a lens holding portion provided on the bridge and the wisdom of the frame constituting member of the spectacle frame.

  An overall view of an example of rimless glasses is shown in FIG. The eyeglass frame 100 of the rimless eyeglasses has both ends connected to the nose side edges of the left and right plastic eyeglass lenses 1 so that the bridge 101 spanned between these eyeglass lenses 1 and the respective eyeglass lenses. 1 and 102 connected to the edge of the ear side. Two pins 103 are provided at both ends of the bridge 101, and two pins 104 are provided in each wisdom 102. Two non-through holes 105 are formed in the nose side edges of the left and right eyeglass lenses 1 toward the inside of the lens, and the respective pins 103 are inserted into these non-through holes 105 filled with adhesive. Thus, the bridge 101 is coupled to each spectacle lens 1. In addition, two non-through holes 106 are formed in the edge portions on the ear side of the left and right eyeglass lenses 1 toward the inside of the lens, and the respective pins 104 are respectively inserted into these non-through holes 106 filled with an adhesive. By being inserted, each wisdom 102 is coupled to each spectacle lens 1.

  Each eyeglass lens 1 is optically finished on both sides, and an uncut lens (hereinafter also referred to as a material lens) with various coatings (hard coat, antireflection film, etc.) and dyeing as required is shaped into a lens. By processing (hereinafter, also referred to as edging), the lens is finished into a predetermined shape.

  As the lens shape of these spectacle lenses 1, there are many rounded shapes (for example, an elliptical shape or a Boston shape) that do not have corners, but in recent years, from the viewpoint of design and fashion, In the case of rimless eyeglasses, there are few restrictions on the shape of the lens, and various shapes can be seen. In such a spectacle lens 1, a portion (for example, a corner portion or a portion having a large curvature, etc., hereinafter referred to as a characteristic portion) whose angle changes abruptly within a short distance in the lens circumferential direction is provided at the edge portion. There is something that has been. In FIG. 25, the feature 10 has a corner shape, and the feature 10 has a nose-side feature 10A and an ear-side feature 10B in each of the left and right eyeglass lenses 1. .

The non-through holes 105 and 106 described above are automatically processed by the automatic processing device on each spectacle lens 1 formed from the material lens into a target lens shape by the edging process, and then the spectacle lens 1 The operation for connecting the bridge 101 and the wisdom 102 described above is performed. The lens is usually attached to the lens holder from when the material lens is trimmed to when the non-through holes 105 and 106 are processed in the spectacle lens 1. For this reason, the attachment center point where the lens holder in the lens is attached is a reference point when the edge lens is processed on the material lens, and the reference when the non-through holes 105 and 106 are processed in the spectacle lens 1. In other words, it is also a processing reference point. Further, this attachment center point is the boxing center in the target lens shape.
WO 2006/046558 A1 WO 2004/107021 A1

  FIG. 26 is a view of the portion of the bridge 101 in FIG. 25 as viewed from the spectacle wearer side, and the characteristic portion 10A and the bridge of the left and right eyeglass lenses 1 when the edging process is performed as prescribed. 101 shows the positional relationship with 101. In this case, the coupling position in the vertical direction of the bridge 101 when compared with the characteristic portion 10A of the right spectacle lens 1A and the coupling in the vertical direction of the bridge 101 when compared with the characteristic portion 10A of the left spectacle lens 1B. The positions are the same, and no difference occurs between these bonding positions.

  In FIG. 27, the shape of the left and right eyeglass lenses 1 is finished within the range of errors allowed by the edge trimming process, but the bridge 101 when compared with the characteristic portion 10A of the right eyeglass lens 1A. A case where a slight difference is generated between the coupling position in the vertical direction and the coupling position in the vertical direction of the bridge 101 when compared with the characteristic portion 10A of the left spectacle lens 1B is shown. In FIG. 27, the difference is exaggerated for easy understanding.

  The reason for this difference is the rigidity of the lens holder used to hold the lens when trimming the material lens, the rigidity of the material lens, and the adhesion between the material lens and the lens holder. It is presumed that the displacement and twist of the part are related. The members constituting the above-described lens holder include the above-described lens holder that is used from edge trimming to automatic processing of the non-through holes 105 and 106 by the above-described automatic processing apparatus.

  The above-described vertical coupling position of the bridge 101 when compared with the characteristic portion 10A of the right spectacle lens 1A and the vertical coupling position of the bridge 101 when compared with the characteristic portion 10A of the left spectacle lens 1B. The difference is slight. However, since the coupling position of the bridge 101 in each of the spectacle lenses 1A and 1B is close to the position where the characteristic portion 10A is formed, the above-described difference becomes conspicuous.

  FIG. 27 shows a case where this conspicuous difference occurs at the edge of the nose side to which the bridge 101 in the left and right spectacle lenses 1 is coupled. It may also occur at the edge of the ear where the wisdom 102 is coupled.

  For this reason, before joining the bridge 101 and the wisdom 102 which are the frame structural members of a rimless spectacle frame to the left and right spectacle lenses 1 obtained by the edging process, It is required to examine whether or not there is a noticeable difference between the position and the coupling position of the frame constituent members.

  When such a conspicuous difference has occurred and this difference can be detected, data based on the inspection result is input as correction data to the above-described automatic processing apparatus for processing the non-through holes 105 and 106. Thus, the frame constituent member can be coupled to the spectacle lenses 1A and 1B so as to have the same positional relationship with respect to the characteristic portions 10 of the left and right spectacle lenses 1.

  In addition, the above-mentioned conspicuous difference arises also when the coupling | bonding structure with respect to the spectacle lens 1 of the frame structural member used as a bridge | bridging and wisdom is other than what is shown by FIGS. That is, in FIG. 28 in which the bridge 201 is shown as a frame constituent member, the spectacle lens 1 is formed with a notch 205 extending from the lens end to the inside of the lens, and the bridge 201 corresponds to the notch 205. A bifurcated fitting insertion portion 203 is formed. A cutout portion 205 formed on at least one of the convex surface and the concave surface of the spectacle lens 1 that is a meniscus lens (the cutout portion 205 in FIG. 28 is formed across both the convex surface and the concave surface of the spectacle lens 1. The bridge 201 is coupled to the spectacle lens 1 by applying an adhesive to the cut-out portion 205 and applying the fitting insertion portion 203 to the notch portion 205. Further, in FIG. 29 in which the bridge 301 is shown as a frame constituent member, the eyeglass lens 1 is provided with one tapered hole 305 and straight hole 306 (the tapered hole 305 in FIG. And the straight hole 306 penetrates in the lens thickness direction.), And the bridge 301 is provided with one taper pin 303 and one straight pin 304, respectively. The bridge 301 is coupled to the spectacle lens 1 by press-fitting the taper pin 303 into the taper hole 305, inserting the straight pin 304 into the straight hole 306, and fixing the pin 304 to the hole 306 with an adhesive.

  It is an object of the present invention to investigate whether or not there is a noticeable difference between the position of the spectacle lens feature and the position where the frame component is coupled to the left and right spectacle lenses to which the frame component of the rimless spectacle frame is attached. A spectacle lens inspection jig and a spectacle lens inspection method are provided.

  The eyeglass lens inspection jig according to the present invention is a lens holder that is attached to each of the material lenses when the left and right material lenses are rimmed, and the edge from the material lens by the edging process. A pair of lens holders that are individually attached to the left and right eyeglass lenses to which the frame constituting member of the rimless eyeglass frame is coupled, and the left and right eyeglass lenses are arranged side by side In order to do this, a member for individually supporting the pair of lens holders, and inspecting the misalignment between the characteristic portions by contrast observation of the left and right eyeglass lenses, And a pair of support members disposed with reference to the reference plane.

  In the spectacle lens inspection method according to the present invention, the left and right eyeglass lenses having a predetermined shape having a characteristic portion at the edge are attached to the left and right material lenses by attaching a lens holder to each of the left and right material lenses. A pair of support members individually supporting the lens holder attached to each of the left and right eyeglass lenses to which the frame constituting member of the rimless eyeglass frame is coupled; A second step for arranging the left and right eyeglass lenses side by side by disposing these support members on a reference plane that is a reference for the direction of displacement between the feature portions; and And a third step for inspecting misalignment between the feature portions by contrast observation.

  According to the present invention, the left and right eyeglass lenses obtained from the material lens by the edging process are attached with the lens holders that have been attached since the edging process, and these lens holders are supported by the pair of support members. These support members are arranged with reference to the reference plane with respect to the direction of the misalignment when the misalignment between the features is inspected by contrast observation of the left and right spectacle lenses. Thus, it is possible to inspect the positional deviation between the feature portions by contrast observation. Therefore, by performing this inspection, whether or not there is a noticeable difference between the position of the spectacle lens feature and the position of the frame constituent member between the left and right spectacle lenses to which the frame constituent member of the rimless spectacle frame is coupled. You can find out.

  In the present invention, an example of the above-described “arranging the left and right eyeglass lenses side by side” is to place these eyeglass lenses on the left and right.

  According to this, it is possible to inspect the positional shift between the feature portions formed on the nose side edge portions of the left and right eyeglass lenses or between the feature portions formed on the ear side edge portions.

  In addition, when the characteristic portions are on the nose side and the ear side of each spectacle lens, a pair of lens holders individually attached to the left and right spectacle lenses are used as a pair of support members arranged on the left and right. It may be exchangeable and supportable.

  According to this, by exchanging a pair of lens holders with a pair of support members and supporting them, one of the nose-side feature parts and the ear-side feature parts is exchanged before the exchange. After the replacement, it is possible to inspect the misalignment between the other feature portions of the nose side feature portions and the ear side feature portions.

  In addition, when the characteristic portions are on the nose side and the ear side of each spectacle lens, the pair of support members arranged on the left and right may be exchangeable with the left and right reversed.

  In this case, by performing the work of arranging and exchanging the pair of support members so that the left and right sides are opposite to each other, one of the nose-side feature portions and the ear-side feature portions is exchanged before the exchange. It is possible to inspect the positional deviation between each other, and after the replacement, it is possible to inspect the positional deviation between the other characteristic parts among the characteristic parts on the nose side and the characteristic parts on the ear side.

  Further, in the present invention, another example of the above-described “arranging the left and right eyeglass lenses side by side” is to place these eyeglass lenses facing each other.

  According to this, when the characteristic part is formed only on the nose side edge of the left and right eyeglass lenses, when the characteristic part is formed only on the ear side edge, and on the nose side edge and the ear side It is possible to deal with the case where both the edge portion and the edge portion are formed.

  In other words, since the left and right eyeglass lenses are arranged to face each other, when the characteristic part is formed only at the nose side edge of the left and right eyeglass lenses, Even if the misalignment between the features can be inspected and the feature is formed only on the edge of the ear side of the right and left eyeglass lenses, the misalignment between these features can be detected with this facing arrangement. Can be inspected. In addition, when the feature portions are formed on both the nose side edge and the ear side edge of the left and right eyeglass lenses, the nose side feature portions and the ear side are arranged in this facing state. It is possible to inspect both the positional deviations between the characteristic portions of each other. That is, in this case, by placing the pair of spectacle lenses in a state of facing each other, the nose side edges and the ear side edges of these spectacle lenses can be brought close to each other at the same time. Since the positional deviation can be observed from the edge surface side of these spectacle lenses, the characteristic portions formed at arbitrary positions on the edge portions of these spectacle lenses can be maintained with the arrangement state of the spectacle lenses facing each other. Can be inspected for misalignment.

  The inspection jig according to the present invention may include a base member provided with the above-described reference surface.

  According to this, by arranging a pair of support members on the base member, when the positional deviation between the feature portions is inspected by contrast observation of the left and right eyeglass lenses, each support member is used as a reference surface of the base member. Can be arranged with reference to.

  The base member may be provided with a guide portion that slidably guides the pair of support members.

  According to this, the pair of support members are guided by the guide portion and slid to bring the right and left eyeglass lenses closer to the approach distance necessary for inspecting the misalignment between the feature portions, The spectacle lenses can be butted against each other.

  When such a guide portion is provided on the base member, the guide portion may be a guide protrusion or a guide groove.

  Further, it is preferable that the pair of support members be provided with rotation stopping means for preventing the lens holder from rotating with respect to the support member about the attachment center point of the lens holder in the spectacle lens.

  According to this rotation prevention means, the lens holder can be prevented from rotating with respect to the support member around the lens holder mounting center point in the spectacle lens. It is possible to carry out the inspection accurately.

  Thus, in the case where the pair of support members are provided with rotation stopping means for preventing the lens holder from rotating with respect to the support member around the attachment center point of the lens holder in the spectacle lens, When the key groove used at the time of edging is formed, the rotation stop means is a key inserted into this key groove.

  According to this, the lens holder is formed on the support member around the lens holder mounting center point in the spectacle lens by the key groove formed on the lens holder and used for the edge trimming process and the key provided on the support member. It is possible to prevent rotation with a simple structure.

  The key provided on each support member is a member different from the support member, and may be a key member fixed to the support member with a fixing tool such as a screw, and is formed by a part of the support member. It may be the key part.

  In addition, when performing the inspection of the positional deviation between the feature portions by contrast observation of the left and right eyeglass lenses, if the inspection can be performed visually, the inspection may be performed visually. If it is difficult or impossible, the inspection is performed using a fine field expanding means such as a microscope or a magnifying glass.

  In the present invention, the feature formed on the edge of each spectacle lens may be in the shape of a corner as shown in FIGS. 25 to 29, may be in the shape of a depression, or other unique shape. It may be.

  Furthermore, in the present invention, the constituent members of the rimless spectacle frame coupled to the left and right spectacle lenses may be those shown in FIGS. 25 to 27, may be those shown in FIG. 28, and are shown in FIG. Other than these may be used.

  According to the present invention, it is possible to examine whether or not there is a conspicuous difference between the position of the spectacle lens feature and the coupling position of the frame component between the left and right spectacle lenses to which the frame component of the rimless spectacle frame is attached. The effect is obtained.

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated based on drawing. First, referring to FIG. 1 and FIG. 2, an edge trimming apparatus for producing right and left eyeglass lenses from left and right material lenses will be described.

  FIG. 1 shows a main part of the edge trimming apparatus 20. The edging apparatus 20 includes a lens holder 21 for holding the plastic material lens 1 ′, and the lens holder 21 includes a lens holder 22 attached to the convex surface side of the material lens 1 ′, The lens pressing member 23 is disposed on the concave surface side, and a holder receiving member 24 to which the lens holder 22 is detachably attached. The holder receiving member 24 is coupled to the distal end of the first rotating shaft 25, and the lens pressing member 23 is coupled to the distal end of the second rotating shaft 26 that is coaxially disposed opposite to the first rotating shaft 25.

  As shown in FIG. 2 illustrating the separation of the lens holder 22 and the holder receiving member 24, the holder receiving member 24 has a hole 24A into which the main body 22A having a circular cross section of the lens holder 22 is fitted. A key portion 24 </ b> B that protrudes forward from one place in the circumferential direction is formed at the tip of the holder receiving member 24. The lens holder 22 includes a ring-shaped annular bank portion 22B, and a key groove 22C into which the key portion 24B can be inserted is formed at one circumferential position of the annular bank portion 22B. Has been.

  Further, an adhesive tape 27 having an adhesive applied on both sides is provided on the front end surface of the lens holder 22, and the lens holder 22 when separated from the holder receiving member 24 is previously made of the material with the adhesive tape 27. Attached to the lens 1 '. The lens holder 22 is attached (blocked) to the material lens 1 ′ at a predetermined position (described later) of the material lens 1 ′ by a lens holder mounting device (blocker) not shown in the drawing. When the second rotating shaft 26 of FIG. 1 is in the retracted position on the right side of FIG. 1 by a moving mechanism (not shown), the lens holder 22 is fitted into the hole 24A of the holder receiving member 24 by fitting the main body 22A of the lens holder 22 into the lens holder. 22 is attached to the holder receiving member 24, and the key portion 24B is inserted into the key groove 22C, so that the lens holder 22 and the material lens 1 ′ with respect to the holder receiving member 24 have the first and second rotating shafts 25, 26 is positioned in the rotational direction.

  After the lens holder 22 is attached to the holder receiving member 24, the second rotating shaft 26 is moved to the lens holder 22 side by the moving mechanism, whereby the material lens 1 ′ to which the lens holder 22 is attached is It is held by a holder receiving member 24 and a lens pressing member 23 that constitute the holder 21.

  The attachment center (block center) where the lens holder 22 is attached to the material lens 1 ′ is the frame center (boxing center) of the rimless eyeglass frame. The frame center includes two horizontal lines that are in contact with the upper and lower ends of the spectacle lens 1 produced by the edge processing of the material lens 1 ′ and two vertical lines that are in contact with the left and right ends of the spectacle lens 1. It is the center of a quadrangle surrounded by.

  The position of the frame center in the material lens 1 ′ is calculated based on a design value that has been created in advance and stored in the storage means of the computer to be described later, and the attachment of the lens holder 22 to that position is controlled by the computer. This is performed by the lens holder mounting device.

  The edging apparatus 20 of FIG. 1 includes a grinding wheel 28 in which grinding particles such as diamond particles adhere to the outer peripheral surface. The grinding wheel 28 coupled to the tip of a spindle 29 is integrated with the spindle 29. Rotate to. The grinding wheel 28 has a roughing portion 28A and a finishing portion 28B that are arranged in parallel in the axial direction.

  After the material lens 1 ′ to which the lens holder 22 is attached is held by the holder receiving member 24 and the lens pressing member 23 of the lens holder 21, the material lens 1 that has started to rotate around the first and second rotation shafts 25 and 26. 'Begins to advance toward the rotating grinding wheel 28 due to the movement of the first and second rotary shafts 25, 26 toward the grinding wheel 28 by a forward / backward moving mechanism (not shown). As a result, the edge surface of the material lens 1 ′ comes into contact with the rough machining portion 28 </ b> A of the grinding wheel 28, and the rough edge machining of the material lens 1 ′ starts. In this rough edging process, the first and second rotating shafts 25 and 26 repeat the forward and backward movement with respect to the grinding wheel 28 with the frame center that is the block center of the material lens 1 ′ as a reference position by the forward and backward movement mechanism. Is done. Then, the rotating material lens 1 'repeats forward and backward movement with respect to the grinding wheel 28 in synchronization with the rotation, whereby the material lens 1' is gradually roughly processed into a predetermined shape.

  When the processing amount by the rough edging process reaches a predetermined amount, the first and second rotary shafts 25 and 26 are moved in the axial direction by an axial movement mechanism (not shown), so that the edge surface of the material lens 1 ′ becomes a grinding wheel. The material lens 1 ′ is also in contact with the finishing portion 28 B of 28, and the material lens 1 ′ is moved forward and backward relative to the grinding wheel 28 of the first and second rotating shafts 25 and 26 with respect to the finishing portion 28 B. Repeat the forward and backward movement. Thereby, the material lens 1 ′ is finished.

  The above-described rotation of the first and second rotating shafts 25 and 26 and the frame center (in other words, the axial center position of the first and second rotating shafts 25 and 26) that is made in synchronization with this rotation are used as the reference position. The forward and backward movement of the first and second rotating shafts 25 and 26 is performed based on a computer program for controlling the edging apparatus 20, and the material lens 1 'is controlled by the control of the edging apparatus 20 by this program. Thus, the spectacle lens 1 having a predetermined shape is manufactured.

  The eyeglass lens 1 is manufactured by the edge trimming apparatus 20 for each of the left and right eyeglass lenses 1A and 1B. The eyeglass lenses 1A and 1B are left and right eyeglasses with the lens holder 22 attached thereto. The lens 1A, 1B is sent to an inspection process for examining whether or not there is a noticeable difference between the position of the characteristic portion 10 and the coupling position of the frame constituent member. That is, the eyeglass lenses 1A and 1B are sent from the edge trimming process to the above-described inspection process without removing the lens holder 22.

  The lens holders 22 attached to the left and right eyeglass lenses 1A and 1B are formed with the same dimensions and the same shape.

  3 is a plan view showing the entire inspection jig 40 according to the first embodiment used in the above-described inspection process, FIG. 4 is a front view thereof, and FIG. 5 is a sectional view taken along line S5-S5 of FIG. It is. The inspection jig 40 includes a pair of left and right support members 41 and 42 for individually supporting the two lens holders 22 attached to the left and right eyeglass lenses 1A and 1B, and the support members 41 and 42 are provided in the left and right direction. And a base member 43 slidably set. The two support members 41 and 42 are formed with the same shape and the same dimensions.

  That is, each support member 41, 42 is formed with a small-diameter first hole portion 44 and a large-diameter second hole portion 45 that are continuously formed in the vertical direction, and the lower first hole portion 44. Has a diameter compatible with the main body portion 22 </ b> A of the lens holder 22, and the upper second hole 45 has a diameter compatible with the annular bank portion 22 </ b> B of the lens holder 22. Further, as shown in FIG. 3, a key groove 46 reaching the second hole 45 opened on the upper surface is formed on the upper surface of each support member 41, 42, and is arranged in the key groove 46. The key 47 is fixed to the support members 41 and 42 with a set screw 48 screwed into the support members 41 and 42. Therefore, the main body portion 22A of the lens holder 22 is inserted into the first hole portion 44, the annular bank portion 22B of the lens holder 22 is inserted into the second hole portion 45, and the key 47 is fitted into the key groove 22C of the lens holder 22. As a result, the lens holder 22 is set upward on the support members 41 and 42, and the spectacle lenses 1 </ b> A and 1 </ b> B to which these lens holders 22 are attached are also set upward on the support members 41 and 42.

  At this time, since the key 47 serves as a rotation prevention means, the rotation prevention means causes the lens holder 22 to be attached to the support members 41 and 42 around the above-described attachment center point (frame center) of the lens holder 22 in the eyeglass lenses 1A and 1B. In contrast, rotation is prevented.

  The base member 43 has an inverted T-shape composed of a lower base portion 43A and a guide protrusion 43B that rises vertically from the base portion 43A. As shown in FIG. 5, each support member 41, 42 is formed with a guide groove 49 into which the guide protrusion 43 </ b> B is inserted. By inserting the guide protrusion 43 </ b> B into the guide groove 49, Each of the support members 41 and 42 is set on the base member 43, and these support members 41 and 42 are disposed on the base member 43 so as to be slidable in the left-right direction with the guide protrusion 43B serving as a guide portion.

  The two lens holders 22 attached to the left and right eyeglass lenses 1A and 1B are individually set on the pair of support members 41 and 42 as described above, and the support members 41 and 42 are set as described above. FIG. 6 shows a side view of the base member 43 set in the state.

  Further, a set screw 50 is screwed into each of the support members 41 and 42 toward the guide protrusion 43B. After the support members 41 and 42 are slid to appropriate positions in the left and right direction on the base member 43, when the set screw 50 is rotated and tightened, the tip of the set screw 50 faces the set screw 50 in the guide protrusion 43B. In order to press contact with the long groove portion 51 formed on the surface to be supported, the respective support members 41 and 42 are fixed at the positions. Each support member 41, 42 is formed with two holes 53 into which two pins 52 are inserted on the side opposite to the set screw 50, and the distal ends of these pins 52 are guide ridges. The portion 43B is inserted into a long groove portion 54 formed on the surface opposite to the long groove portion 51.

  The vertical dimension of the long groove portion 54 matches the diameter of the pin 52. For this reason, in a state where the tip portions of the two pins 52 are inserted into the long groove portion 54 and the set screw 50 is tightened, the upper surface of the guide groove 49 and the upper surface of the guide protrusion 43B come into contact with each other, thereby supporting The members 41 and 42 are arranged at the exact position in the vertical direction of the base member 43, and the surface 49A (see FIGS. 5 and 6) on the side where the pin 52 is arranged in the guide groove 49 is the surface 49A. Since the rising surfaces 55 of the guide protrusions 43 </ b> B that face each other are pressed against each other, the support members 41 and 42 are arranged at accurate positions in the front-rear direction of the base member 43. Will be. As a result, the correct vertical posture of the lens holder 22 supported by the support members 41 and 42 is maintained, and the correct horizontal posture of the spectacle lenses 1A and 1B to which the lens holder 22 is attached is maintained.

  The two pins 52 prevent the support members 41 and 42 from rotating relative to the base member 43 due to the rotational force from the set screw 50 when the set screw 50 is rotated and tightened. is doing.

  Further, in the case of the inspection jig 40 shown in FIGS. 3 to 5, the support members 41 and 42 cannot be removed from the guide protrusion 43 </ b> B unless the pin 52 is pulled out from the hole 53. For this reason, when the left and right eyeglass lenses 1A and 1B are reversed in the left-right direction, as will be described later, the lens holder 22 attached to the eyeglass lenses 1A and 1B is pulled upward from the support members 41 and 42, These lens holders 22 are inserted into the support members 41 and 42 while being reversed left and right.

  In addition, by configuring the support members 41 and 42 so that they can be easily detached from the guide protrusions 43B, the support members 41 and 42 on which the lens holder 22 is set are reversed left and right with respect to the base member 43 described above. May be set again. In order to realize this, for example, the long groove portion 54 into which the tip portion of the pin 52 is inserted may be formed up to the left and right end portions of the guide protrusion 43B. According to this, by performing the rotation operation to loosen the set screw 50, the support members 41 and 42 can be extracted from the left and right ends of the guide protrusion 43B by the slide operation of these support members 41 and 42. Furthermore, after that, these support members 41 and 42 can be slidably set on the guide protrusion 43B in the left-right direction.

  FIG. 7 shows a plan view of the lens holder 22 before being supported by the support members 41 and 42. FIG. 8 is a view taken in the direction of arrow S8 in FIG. The eyeglass lenses 1A and 1B to which the lens holder 22 is attached at this time are manufactured from the material lens 1 ′ by the edging apparatus 20 of FIG. 1, and thus the edge portions of the eyeglass lenses 1A and 1B. Is formed with a corner-shaped feature 10. The feature 10 includes a nose-side feature 10A and an ear-side feature 10B.

  In order to examine whether or not there is a noticeable difference between the position of the characteristic portion 10 and the coupling position of the frame constituent members in the left and right eyeglass lenses 1A and 1B manufactured from the material lens 1 ′ by the edging apparatus 20 First, as shown in FIG. 9, the lens holder 22 attached to the right eyeglass lens 1 </ b> A is set on the right support member 41 set on the base member 43 and set on the base member 43. The lens holder 22 attached to the left eyeglass lens 1B is set on the left support member 42 thus formed. Thereafter, the respective support members 41 and 42 are slid to the left and right along the guide protrusion 43B of the base member 43, whereby the left and right eyeglass lenses 1A and 1B are brought close to each other or close to each other. The Further, the support members 41 and 42 are fixed to the base member 43 by rotating and tightening the set screws 50 of the support members 41 and 42.

  When the above operations are completed, the left and right eyeglass lenses 1A and 1B are arranged side by side and arranged on the inspection jig 40 according to the present embodiment. Further, the support members 41 and 42 are disposed at accurate positions in the front-rear direction of the base member 43 with the above-described rising surface 55 as a reference plane.

  The upright surface 55 serving as a reference surface is a vertical surface. On the other hand, the arrangement posture of the left and right eyeglass lenses 1A and 1B in the inspection jig 40 is a horizontal posture. The above-mentioned conspicuous difference that occurs in the left and right eyeglass lenses 1A and 1B with respect to the position 10 and the coupling position of the frame constituent members is a difference in the horizontal front-rear direction perpendicular to the rising surface 55. For this reason, the pair of support members 41 and 42 are arranged with reference to the rising surface 55 of the base member 43 that serves as a reference surface for the direction of displacement between the features 10 of the left and right eyeglass lenses 1A and 1B. It will be. Thus, preparations for accurately inspecting the positional deviation between the nose-side feature portions 10A are made by comparative observation of the left and right eyeglass lenses 1A and 1B.

  Next, the entire inspection jig 40 is placed and set on the inspection table 61 of the microscope 60 shown in FIG. This placement set is performed by positioning the nose side features 10A of the left and right eyeglass lenses 1A, 1A directly below a downward eyepiece 62 provided in the microscope 60. Thereafter, the eyepiece lens 62 is moved up and down with respect to the spectacle lenses 1A and 1B by operating the lifting operation member 63, thereby focusing the eyepiece lens 62 on the characteristic portion 10A. FIG. 12 shows a characteristic portion 10A on the observation screen that can be seen when looking into the eyepiece 62 at this time.

  As shown in FIG. 12, the eyepiece 62 is provided with a scale display section 64, and the scale display section 64 is provided with a plurality of scale lines 64A provided at regular intervals in the positional deviation direction between the feature sections 10A. have. For this reason, it is possible to check whether or not a positional deviation has occurred between the characteristic portions 10A of the left and right eyeglass lenses 1A and 1B by using these scale lines 64A. Further, when a positional deviation has occurred, the amount of the positional deviation is represented by a number indicating the distance between the scale lines 64A displayed on the scale display unit 64 (this number is omitted in FIG. 12). I can know.

  When the thicknesses of the left and right eyeglass lenses 1A and 1B are different, the eyepiece 62 cannot be focused on both the feature portions 10A that can be observed on the observation screen of FIG. Although the image of the characteristic portion 10A is blurred, the eyepiece 62 can be moved up and down by the elevating operation member 63. Therefore, the focus of the eyepiece 62 is first focused on one characteristic portion 10A, and then the other characteristic portion 10A. By aligning the focus of the eyepiece lens 62 with each other, it is possible to inspect the positional deviation between these characteristic portions 10A.

  After inspecting the positional deviation between the nose side features 10A of the left and right eyeglass lenses 1A and 1B as described above, the respective lens holders 22 individually attached to the left and right eyeglass lenses 1A and 1B are attached to the base. The members 43 are extracted upward from the respective support members 41 and 42 arranged on the left and right sides of the member 43, and these lens holders 22 are supported on the respective support members 41 and 42 in the right and left direction. Thereby, the arrangement positions of the pair of spectacle lenses 1A and 1B in the inspection jig 40 are reversed left and right. The state at this time is shown in FIG.

  Thereafter, the microscope 60 inspects the positional deviation between the ear-side feature portions 10B of the left and right eyeglass lenses 1A and 1B.

  As described above, the left and right eyeglass lenses are formed when the support members 41 and 42 can be easily detached from the guide protrusion 43B by forming the long groove portion 54 to the left and right ends of the guide protrusion 43B. In order to inspect the misalignment between the ear-side feature portions 10B of 1A and 1B, after inspecting the misalignment between the nose-side feature portions 10A of the left and right eyeglass lenses 1A and 1B, each support member 41, The set screw 50 of 42 is loosened by rotating operation, these support members 41, 42 are extracted from the guide protrusion 43B of the base member 43, and then the support members 41, 42 are reversed left and right to guide guide protrusion 43B. It may be set again. Thereby, the left and right of the pair of spectacle lenses 1A and 1B are reversed. Then, as in the case described above, these spectacle lenses 1A and 1B are brought close to each other or close to each other, and these spectacle lenses 1A and 1B are arranged side by side on the inspection jig 40. Thereafter, the set screws 50 of the support members 41 and 42 are tightened by a rotating operation. Thereby, the positional deviation between the ear-side feature portions 10B of the left and right eyeglass lenses 1A and 1B can be inspected by the microscope 60.

  From the above inspection, it can be determined whether or not there is a noticeable difference between the position of the characteristic portion 10 and the coupling position of the frame constituent members in the left and right spectacle lenses 1A and 1B to which the constituent members of the rimless spectacle frame are coupled. When such a conspicuous difference occurs, the non-through holes 105 and 106 and the notch 205 for coupling the frame constituent members by the bridges 101, 201, and 301 shown in FIGS. Data relating to the amount of positional deviation between the feature portions 10 is input to a computer-controlled automatic processing device for processing the tapered hole 305 and the straight hole 306 into the spectacle lenses 1A and 1B, and the automatic processing device is configured based on this data. Control and correct by computer. Thereby, when the frame constituent member is coupled to the spectacle lenses 1A and 1B, the distance between the coupling position and the position of the feature portion 10 can be the same or substantially the same in the left and right spectacle lenses 1A and 1B.

  According to the present embodiment described above, since the positional shift between the feature portions 10 of the left and right eyeglass lenses 1A and 1B can be inspected, the feature portions are attached to these eyeglass lenses 1A and 1B to which the frame constituent members of the rimless eyeglass frame are attached. It is possible to examine whether or not there is a noticeable difference between the position 10 and the coupling position of the frame constituent member, thereby correcting the coupling position of the frame constituent member in the spectacle lenses 1A and 1B.

  In addition, the inspection jig 40 of this embodiment includes a pair of support members 41 and 42 that individually support the lens holders 22 attached to the left and right eyeglass lenses 1A and 1B, and these support members 41 and 42, respectively. A base member 43 to be set is provided. Since the base member 43 is provided with a rising surface 55 that serves as a reference surface when the positional deviation between the feature portions 10 is inspected by contrast observation of the left and right eyeglass lenses 1A and 1B, In order to accurately inspect the displacement, the support members 41 and 42 can be accurately set on the base member 43, respectively.

  Further, since the base member 43 is formed with guide protrusions 43B that are guide portions for slidably guiding the pair of support members 41, 42 to the left and right, the left and right eyeglass lenses 1A, 1B are It is possible to approach the approaching distance necessary for inspecting the positional deviation between the feature portions 10 or to bring these eyeglass lenses 1A and 1B into contact with each other.

  Further, the pair of support members 41 and 42 is provided with a rotation stopper for preventing the lens holder 22 from rotating with respect to the support members 41 and 42 around the attachment center point of the lens holder 22 in the eyeglass lenses 1A and 1B. Since the key 47 as means is provided, the lens holder 22 does not rotate with respect to the support members 41 and 42 around the mounting center point. For this reason, it is possible to accurately inspect the positional deviation between the characteristic portions 10 performed by contrast observation of the left and right eyeglass lenses 1A and 1B.

  Further, according to the present embodiment, the key 47 of the support members 41 and 42 is formed in advance in the lens holder 22 and is fitted into the key groove 22C used at the time of edge trimming. Can be a simple structure using the key groove 22C used for edge trimming.

  FIG. 13 shows a microscope 70 in which an XY table device 75 is installed on the base table 71. The XY table device 75 includes an X table 75A that is slidable in the left-right direction (X direction) with respect to the base table 71, and a Y table that is slidable in the front-rear direction (Y direction) with respect to the X table 75A. 75B. The slides of the tables 75A and 75B are performed by operating a manual operation member (not shown), and the respective slide amounts in the X direction and the Y direction are displayed on a digital display device (not shown).

  The inspection jig 40 is placed and set on the Y table 75B. Then, by sliding the X table 75A and the Y table 75B, the inspection jig 40 is arranged side by side through the lens holder 22 directly below the eyepiece lens 72 that can be moved up and down by the lifting operation member 73. The eyeglass lens 1A, 1B is placed on the characteristic portion 10 and the eyepiece lens 72 is moved up and down by the elevating operation member 73, so that the eyepiece lens 72 is focused on the eyeglass lens 1A, 1B.

  FIG. 14 shows an observation screen that can be viewed by looking through the eyepiece lens 72. The eyepiece 72 is provided with a cross mark 74 formed by two vertical and horizontal lines. By sliding the X table 75A and the Y table 75B, an intersection 74A of the cross mark 74 is set to the characteristic portion 10 of the left and right eyeglass lenses 1A and 1B. Of these, the position of one feature 10 is set. Thereafter, the X table 75A and the Y table 75B are slid again, and the intersection 74A of the cross mark 74 is aligned with the position of the other feature portion 10. The slide amount of the Y table 75B from when the cross point 74A of the cross mark 74 is set to the position of one feature 10 to when the cross point 74A of the cross mark 74 is set to the position of the other feature 10 is digitally calculated. Read from the display device. Thereby, it is possible to know the amount of positional deviation between the characteristic portions 10 of the left and right eyeglass lenses 1A and 1B.

  Further, since the eyepiece lens 72 is moved up and down by the lifting operation member 73, in other words, the eyepiece lens 72 approaches and separates from the eyeglass lenses 1A and 1B, so that it is similar to the case described with the microscope 60 in FIG. Even if there is a difference in thickness between the left and right eyeglass lenses 1A and 1B, it is possible to inspect the positional deviation between the characteristic portions 10 of the left and right eyeglass lenses 1A and 1B.

  15 is a plan view showing the entire inspection jig 80 according to the second embodiment, FIG. 16 is a front view thereof, and FIG. 17 is a sectional view taken along line S17-S17 in FIG. The inspection jig 80 includes a pair of left and right support members 81 and 82 for individually supporting the two lens holders 22 attached to the left and right eyeglass lenses 1A and 1B, and the support members 81 and 82 are provided in the left-right direction. And a base member 83 set so as to be slidable. The two support members 81 and 82 are formed with the same shape and the same dimensions.

  Explaining the pair of support members 81 and 82, these support members 81 and 82, which have a rectangular block shape as a whole, are formed with a hole portion 84 penetrating vertically, and the diameter of the hole portion 84 is The size is adapted to the diameter of the main body 22A of the lens holder 22. In addition, the vertical dimension of the hole 84 is, in other words, the vertical dimension of the support members 81 and 82 from the end of the lens holder 22 opposite to the mounting surface of the spectacle lenses 1A and 1B. It is larger than the distance to the end surface of the annular bank portion 22B. A key groove 86 into which a key 85 is inserted is formed on the upper surface of each support member 81, 82, and the key 85 is fixed to the support members 81, 82 with a set screw 87.

  The base member 83 is a flat plate member, and a guide groove portion 88 that reaches the left and right end portions of the base member 83 in the left-right direction is formed on the upper surface thereof. By inserting the lower portions of the support members 81 and 82 into the guide groove portion 88, the support members 81 and 82 are set on the base member 83.

  When the main body portions 22A of the lens holders 22 individually attached to the left and right eyeglass lenses 1A and 1B are inserted into the hole portions 84 of the support members 81 and 82 from above, the annular bank portion 22B of the lens holder 22 is supported. By mounting the key 85 on the upper surface of the members 81 and 82 and fitting the key 85 into the key groove 22C formed in the annular bank portion 22B, the above-mentioned mounting center point of the lens holder 22 in the spectacle lenses 1A and 1B is centered. As a result, the lens holder 22 is prevented from rotating with respect to the support members 81 and 82. A side view of the inspection jig 80 at this time is shown in FIG.

  Further, the width dimension of the guide groove portion 88 of the base member 83 is adapted to match the front and rear dimensions of the respective support members 81 and 82. For this reason, when the lower part of each support member 81 and 82 is inserted in the guide groove part 88, each support member 81 and 82 is made into the above-mentioned embodiment by using the wall surfaces 88A and 88B of the front and rear sides of this guide groove part 88 as a reference plane. As in the case of the inspection jig 40, the base members 83 are arranged at accurate positions in the front-rear direction. Further, since the guide groove portion 88 extends in the left-right direction, the pair of support members 81 and 82 are moved in the left-right direction using the guide groove portion 88 as a guide portion, as in the case of the inspection jig 40 of the above-described embodiment. Can be slid. In addition, the pair of lens holders 22 attached to the left and right eyeglass lenses 1A and 1B are extracted from the support members 81 and 82 disposed on the left and right of the base member 83, and these lens holders 22 are reversed left and right. The support members 81 and 82 can also be supported. Further, the support members 81 and 82 can be set again in the guide groove portion 88 with the left and right sides reversed.

  For this reason, even with the inspection jig 80 of this embodiment, the positional deviation between the nose-side feature portions 10A formed at the edges of the left and right spectacle lenses 1A and 1B and the position between the ear-side feature portions 10B. The deviation can be inspected using the microscope 60 in FIG. 11 or the microscope 70 in FIG.

  19 is a plan view showing the entire inspection jig 90 according to the third embodiment, FIG. 20 is a front view thereof, and FIG. 21 is a sectional view taken along line S21-S21 in FIG. The inspection jig 90 of this embodiment is composed of only a pair of left and right support members 91 and 92 for individually supporting the two lens holders 22 attached to the left and right eyeglass lenses 1A and 1B. These support members 91 and 92 are formed with the same shape and the same dimensions.

  Each of the support members 91 and 92 includes a thin plate member 93 and a thick plate member 94 having a thickness larger than that of the thin plate member 93 and having a lateral dimension smaller than that of the thin plate member 93. ing. The lower part of the thick plate member 94 which is perpendicular to the thin plate member 93 is fitted into a notch 93A formed at the end of the thin plate member 93 which is horizontal, and these thin plate members 93 and the thick plate member 94 are coupled by a bolt 95. For this reason, each support member 91 and 92 is L-shaped.

  Since the support members 91 and 92 including the thin plate member 93 are disposed on the upper surface 98A of the fixed rod 98 described later, the thin plate member 93 is provided in order to perform this placement accurately and vertically. It is preferable to increase the front-rear dimension and the left-right dimension. In addition, since a hole for holding the lens holder 22 is formed in the thick plate member 94 as will be described later, the thickness of the thick plate member 94 is sufficiently large to take the depth of the hole. In order to hold the holder 22 with high accuracy, it is preferable to increase the size.

  A first hole 94A having a small diameter is formed in the vertical portion of each support member 91, 92, that is, in each thick plate member 94, and is formed continuously through the thickness direction of the thick plate member 94. A large-diameter second hole portion 94B is formed, the rear first hole portion 94A has a diameter compatible with the main body portion 22A of the lens holder 22, and the front second hole portion 94B is the lens holder 22. The diameter is compatible with the annular bank portion 22B. The thick plate member 94 is formed with a key groove 94C facing the second hole portion 94B, and the key 96 disposed in the key groove 94C is inserted into the thick plate member 94 and screwed into the key 96. The set screw 97 protrudes into the second hole 94B and is fixed to the thick plate member 94.

  Therefore, the main body portion 22A of the lens holder 22 is inserted into the first hole portion 94A, the annular bank portion 22B of the lens holder 22 is inserted into the second hole portion 94B, and the key 96 is fitted into the key groove 22C of the lens holder 22. As a result, the lens holder 22 is set horizontally on the support members 91 and 92, and the spectacle lenses 1A and 1B to which these lens holders 22 are attached are in the vertical posture. 92.

  At this time, since the key 96 serves as a rotation stop means, the lens holder 22 is rotated with respect to the support members 91 and 92 around the above-mentioned attachment center point of the lens holder 22 in the spectacle lenses 1A and 1B. That is blocked. A side view of the inspection jig 90 at this time is shown in FIG.

  In this embodiment, as shown in FIG. 23, the pair of support members 91 and 92 are placed on the upper surface 98 </ b> A that is a flat surface of the surface plate 98. That is, the reference surface of this embodiment is the upper surface 98A. For this reason, in the inspection of the positional deviation between the characteristic portions 10 of the spectacle lenses 1A and 1B performed by the comparative observation of the left and right spectacle lenses 1A and 1B, the pair of support members 91 and 92 are mounted on the upper surface 98A of the surface plate 98. To implement.

  Further, when this inspection is performed, as shown in FIG. 23, the left and right eyeglass lenses 1A and 1B face each other, in other words, these eyeglass lenses 1A and 1B are arranged in the thickness direction. As a result, the nose side features 10A of the spectacle lenses 1A and 1B are arranged in the left-right direction, and the ear-side features 10B are also arranged in the left-right direction.

  FIG. 24 shows an observation screen when the ear-side feature portions 10B are viewed through the loupe, which is a fine visual field enlarging means, like the microscope 60 of FIG. 11 and the microscope 70 of FIG. This loupe may be a portable type or a desktop type that is slidably mounted on the upper surface 98A of the surface plate 98.

  As shown in FIG. 24, the loupe is provided with a scale display portion 99, and the scale display portion 99 has a plurality of scale lines 99A provided at a constant interval in the direction of positional deviation between the characteristic portions 10B. is doing. For this reason, it can be investigated by these scale lines 99A whether position shift has arisen between the characteristic parts 10B. Further, when a positional deviation has occurred, the amount of the positional deviation is represented by a number indicating the distance between the scale lines 99A displayed on the scale display unit 99 (this number is omitted in FIG. 24). I can know.

  Further, the nose side features 10A can also be looked at with a loupe, and thereby the misalignment between these features 10A can also be inspected.

    Even in the case of the inspection jig 90 according to the third embodiment, the pair of support members 91 and 92 are arranged on the left and right sides of the upper surface 98A of the surface plate 98, whereby the inspection treatment of the first embodiment described above. As in the case of the tool 40 and the inspection jig 80 of the second embodiment, the left and right eyeglass lenses 1A and 1B can be arranged side by side. When there is a difference in thickness between the left and right eyeglass lenses 1A and 1B arranged side by side in this way, the eyeglass lenses 1A and 1B are supported via the lens holder 22 from the above-described loupe. The distances to the respective support members 91 and 92 are made different according to the thickness difference between the left and right eyeglass lenses 1A and 1B. Thereby, the focus of a loupe can be simultaneously adjusted to the characteristic part 10 of each spectacle lens 1A, 1B.

  In addition, inspecting the positional deviation between the features of the left and right spectacle lenses 1A and 1B using the inspection jig 90 according to the third embodiment uses a microscope in which the eyepiece is oriented horizontally. You can do it.

  The present invention can be used for inspecting misalignment between feature portions in left and right eyeglass lenses having a feature portion at an edge portion.

FIG. 1 is a diagram illustrating a main part of an edge-grinding apparatus for producing a spectacle lens having a predetermined shape by edge-grinding a material lens W. FIG. 2 is a view showing the lens holder and the holder receiving member shown in FIG. 1 when separated. FIG. 3 is a plan view showing the entire inspection jig according to the first embodiment. FIG. 4 is a front view showing the entire inspection jig according to the first embodiment. 5 is a cross-sectional view taken along line S5-S5 of FIG. FIG. 6 is a side view showing when the lens holder attached to the spectacle lens is set in the inspection jig according to the first embodiment. FIG. 7 is a plan view showing the lens holder before being supported by the support member. FIG. 8 is a view taken in the direction of arrow S8 in FIG. FIG. 9 is a plan view showing when the left and right eyeglass lenses are arranged on the inspection jig according to the first embodiment via the lens holder. FIG. 10 shows that the pair of lens holders shown in FIG. 9 are exchanged and supported by the respective support members so that the left and right eyeglass lenses are arranged upside down on the inspection jig according to the first embodiment. It is a top view which shows time. FIG. 11 is a front view showing the case where the inspection jig according to the first embodiment is set in the microscope and the positional deviation between the characteristic portions of the right and left spectacle lenses is inspected. FIG. 12 is an observation screen that can be viewed when looking into the eyepiece of the microscope of FIG. FIG. 13 is a front view illustrating a case where the inspection jig according to the first embodiment is set in a microscope with an XY table device and the positional deviation between the characteristic portions of the left and right eyeglass lenses is inspected. FIG. 14 is an observation screen that can be seen when looking into the eyepiece of the microscope of FIG. FIG. 15 is a plan view showing the entire inspection jig according to the second embodiment. FIG. 16 is a front view showing the entire inspection jig according to the second embodiment. FIG. 16 is a cross-sectional view taken along line S17-S17 in FIGS. FIG. 18 is a side view showing a state where a lens holder attached to a spectacle lens is set in the inspection jig according to the second embodiment. FIG. 19 is a plan view showing the entire inspection jig according to the third embodiment. FIG. 20 is a front view showing the entire inspection jig according to the third embodiment. 21 is a cross-sectional view taken along line S21-S21 in FIG. FIG. 22 is a side view showing a state where a lens holder attached to a spectacle lens is set in the inspection jig according to the third embodiment. FIG. 23 is a diagram illustrating when the positional deviation between the characteristic portions of the right and left eyeglass lenses is inspected by the inspection jig according to the third embodiment. FIG. 24 is an observation screen that can be viewed by looking into the feature parts with a loupe in order to inspect the positional deviation between the feature parts of the right and left spectacle lenses by the inspection jig of the third embodiment. FIG. 25 is an overall perspective view showing spectacles in which the spectacle frame is a rimless spectacle frame. FIG. 26 is a view of the eyeglass bridge portion shown in FIG. 25 as viewed from the side of the spectacle wearer, and shows a case where the edge trimming work is performed as prescribed. FIG. 27 is a view similar to FIG. 26 showing a case where there is a noticeable difference between the positions of the characteristic portions of these spectacle lenses and the coupling positions of the frame constituent members in the left and right spectacle lenses. FIG. 28 is an exploded perspective view showing a coupling structure when a frame component of a type different from the frame components shown in FIGS. 25 to 27 is coupled to the spectacle lens. FIG. 29 is an exploded perspective view showing a coupling structure when a frame component member of a type different from the frame component members shown in FIGS. 25 to 27 and 28 is coupled to the spectacle lens.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Eyeglass lens 1 'Material lens 1A Right eyeglass lens 1B Left eyeglass lens 10 Characteristic part 10A Nose side characteristic part 10B Ear side characteristic part 20 Rim processing apparatus 22 Lens holder 40, 80, 90 Inspection jig 41, 42, 81, 82, 91, 92 Support member 43, 83 Base member 43B Guide ridge portion 47, 85, 96 as a guide portion 55 Key as a rotation stop means 55 Standing surface as a reference surface 88 Guide groove portion as a guide portion 88A, 88B Wall surface which is a reference plane 98A Upper surface which is a reference plane 100 Rimless spectacle frame 101, 201, 301 Bridge 102 which is a frame constituent member of a rimless spectacle frame 102 Satoshi which is a frame constituent member of a rimless spectacle frame

Claims (15)

A lens holder that is attached to each of the material lenses when the left and right material lenses are trimmed, and is formed into a predetermined shape having a characteristic portion from the material lens to the edge by the edging processing. And a pair of lens holders individually attached to the left and right eyeglass lenses to which the frame components of the rimless eyeglass frame are coupled,
A member for individually supporting the pair of lens holders for arranging the left and right eyeglass lenses side by side, when performing a positional deviation inspection between the feature parts by comparative observation of the left and right eyeglass lenses A pair of support members arranged with reference to a reference plane in the direction of the positional deviation;
An inspection jig for spectacle lenses, comprising:   The eyeglass lens inspection jig according to claim 1, wherein arranging the left and right eyeglass lenses side by side is arranging these eyeglass lenses on the left and right.   3. The eyeglass lens inspection jig according to claim 2, wherein the characteristic portions are on a nose side and an ear side of each of the eyeglass lenses, and the pair of lens holders are arranged on the left and right sides. Inspection jig for left and right eyeglass lenses that can be supported by being replaced with a member.   3. The eyeglass lens inspection jig according to claim 2, wherein the characteristic portions are on a nose side and an ear side of each of the eyeglass lenses, and the pair of support members arranged on the left and right sides are opposite to each other. An inspection jig for spectacle lenses that can be replaced.   The eyeglass lens inspection jig according to claim 1, wherein arranging the left and right eyeglass lenses side by side is arranging these eyeglass lenses facing each other.   6. The spectacle lens inspection jig according to claim 1, further comprising a base member provided with the reference surface.   The spectacle lens inspection jig according to claim 6, wherein the base member is provided with a guide portion that slidably guides the pair of support members.   The spectacle lens inspection jig according to claim 7, wherein the guide portion is a guide protrusion.   The spectacle lens inspection jig according to claim 7, wherein the guide portion is a guide groove portion.   10. The eyeglass lens inspection jig according to claim 1, wherein each of the support members has a lens holder attached to the support member with a center point of the lens holder attached to the eyeglass lens. An eyeglass lens inspection jig provided with anti-rotation means for preventing rotation.   11. The eyeglass lens inspection jig according to claim 10, wherein each lens holder is formed with a key groove used in the edging process, and the rotation stopping means is formed in the key groove. Inspection jig for spectacle lenses that is the key to be inserted. A first step for forming the left and right eyeglass lenses having a predetermined shape having a characteristic part at the edge portion by attaching a lens holder to each of the left and right material lenses;
The lens holder attached to each of the left and right eyeglass lenses to which the frame constituting member of the rimless eyeglass frame is coupled is individually supported by a pair of support members, and the support members are displaced from each other. A second step for arranging the left and right eyeglass lenses side by side by arranging them on a reference plane serving as a reference of direction;
A third step for inspecting misalignment between the features by contrast observation of the left and right eyeglass lenses;
A method for inspecting a spectacle lens, comprising:   13. The spectacle lens inspection method according to claim 12, wherein the characteristic portions are on a nose side and an ear side of each spectacle lens, and arranging the left and right spectacle lenses in the second step side by side is as follows. In the third step, the pair of lens holders are replaced with and supported by the pair of support members disposed on the left and right, respectively. A method for inspecting spectacle lenses in which an operation for inspecting misalignment between the nose-side feature portions and an operation for inspecting misalignment between the ear-side feature portions of the spectacle lenses are performed.   13. The spectacle lens inspection method according to claim 12, wherein the characteristic portions are on a nose side and an ear side of each spectacle lens, and arranging the left and right spectacle lenses in the second step side by side is as follows. In the third step, the pair of support members arranged on the left and right are arranged and exchanged with the left and right reversed, whereby the nose of each of the eyeglass lenses is arranged. A method for inspecting a spectacle lens, wherein an operation for inspecting a positional deviation between the side feature portions and an operation for inspecting a positional deviation between the ear side feature portions of the respective spectacle lenses are performed.   13. The spectacle lens inspection method according to claim 12, wherein arranging the left and right spectacle lenses side by side in the second step is arranging these spectacle lenses facing each other.

Images