JP2009294399A - Lens holding tool, and method for coating lens - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lens holding tool by which a lens can be easily attached and detached and further a convex side optical surface and a concave side optical surface of the lens can be continuously coated. <P>SOLUTION: At an annular body 22 surrounding the lens 20 mounted on a mounting plate 3, at least three lens holding means 40 for holding an edge face of the lens 20 and a plurality of bolts 45 for fixing each lens holding means 40 to the annular body 22 are provided. The lens holding means 40 has: a supporting rod 41 which is formed in a T-shape facing a side and thereby which penetrates an inserting hole 29 of the annular body 22 so as to be able to freely move forth and back and to prevent rotation; and a pressing rod 42 which is perpendicularly provided at a front end of the supporting rod 41 so as to orthogonally cross it and which presses the edge face of the lens 20 in a state of line contact or surface contact. A cap 56 formed of a soft material is put on a surface of the pressing rod 42. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a lens holding jig, and more particularly to a lens holding jig and a lens coating method suitable for use in spin coating a coating solution on an optical surface of a spectacle lens.

  Conventionally, as a lens holding jig for holding a lens such as a spectacle lens, various jigs described in, for example, Patent Documents 1 to 4 are known.

  The optical element holding device described in Patent Literature 1 includes three holding portions that hold the optical element by contacting the outer peripheral surface of the optical element from three positions, and one of these holding portions is provided. In order to attach and detach the optical element, it is movable so as to be in contact with and separated from the outer peripheral surface.

  The optical element holding device described in Patent Document 2 is configured to hold a held portion formed on the outer peripheral surface of the optical element at three or more points by the holding portion. The held portion of the optical element is formed of a V-groove or a U-groove, and the holding portion of the optical element holding device is configured by a locking projection or a protruding shape.

  The lens holding jig described in Patent Document 3 has a pair of side holding parts that hold the left and right side edges of the lens, and one lower holding part that holds the lower edge of the lens, At least one of the pair of side holding portions has a V-shaped holding portion that holds the edge surface of the lens, and supports the V-shaped holding portion on the edge of the lens (hereinafter also referred to as an edge surface). And a vertically extending portion extending downward from the V-shaped holding portion, and the vertically extending portion is in contact with or close to the edge surface of the lens.

  Patent Document 4 discloses a technique for fixing the outer periphery of a lens at a pitch of 120 ° with three lens holders. The lens holder includes a holder main body, a roller, and a roller support portion. When the lens holder is fixed to the lens, an attachment jig and a fixing jig are used. That is, first, three lens holders are positioned and installed on a mounting jig, and a lens is placed thereon. Further, the fixing jig is placed on the upper side of the mounting jig, and the side surface of the holder body on which the roller is provided is brought into contact with the inner peripheral surface of the fixing jig. Thus, the lens holder is positioned in the radial direction, and a slight gap is formed between the outer peripheral surface of the lens and the outer peripheral contact portion of the holder body. Then, the gap is filled with an adhesive to fix the lens and the lens holder.

Japanese Patent Application Laid-Open No. 07-239433 JP 07-318774 A JP 2004-268013 A JP 2007-248872 A

  However, in the optical element holding device described in Patent Document 1, a movable holding portion is formed in a conical shape, a peripheral surface thereof is brought into contact with the optical element, and a spring that biases the holding portion in the axial direction is used. Since the pressing force to the optical element is obtained, it is difficult to obtain a large pressing force that can withstand high-speed rotation during spin coating, and the holding portion bends when attempting to obtain a large pressing force by increasing the spring force. There was a problem.

  The optical element holding device described in Patent Document 2 needs to form a V-shaped or U-shaped groove in the optical element, which is cumbersome to process and increases the manufacturing cost of the optical element. There is also a problem that it cannot be applied to an optical element having a thin edge thickness that has been subjected to Mets processing (thin processing).

  The lens holding jig described in Patent Document 3 is formed by bending a thin wire rod, and is a jig used when coating the lens by immersing the lens in a solution such as a hard coat. The holding power is weak and is not suitable as a jig used in a spin coating apparatus.

  Since the lens holder described in Patent Document 4 uses an adhesive to fix the lens, the lens may be soiled by the adhesive and is not suitable for spin coating. In addition, for lenses with different diameters, a jig and lens holder with a diameter suitable for the lens must be prepared each time, which increases the number of types of jigs and is cumbersome to manage. there were.

  The present invention has been made to solve the above-described conventional problems. The object of the present invention is to easily attach and detach the lens and to continuously coat the convex and concave optical surfaces. It is an object of the present invention to provide a lens holding jig and a lens coating method.

  In order to achieve the above object, a lens holding jig according to the present invention is provided with an annular ring surrounding the periphery of a lens placed on a mounting plate, and arranged at equal intervals in the circumferential direction on the annular body. And at least three lens holding means for holding the edge surface of the lens, and a plurality of fixing means for fixing the lens holding means to the annular body, the annular body having an inner peripheral surface and an outer peripheral surface. And the same number of insertion holes as the lens holding means formed radially at equal intervals in the circumferential direction, and the lens holding means is capable of moving forward and backward through the insertion hole of the annular body and prevented from rotating. By comprising a supporting rod that penetrates and a pressing rod that is provided at the front end of the supporting rod so as to be orthogonal to the edge of the lens and that presses the edge surface of the lens, the T-shaped or L-shaped sideways in a side view. Formed in the above Pressure rod surface is covered with a soft material, in which the lens pressing portion in line contact or surface contact with the edge surface of the lens.

  In the lens holding jig according to the present invention, the lens pressing portion is a portion on an extension of the axis of the support rod.

  In the lens holding jig according to the present invention, a rebound preventing portion for preventing the coating solution from rebounding in the lens direction is provided on the inner peripheral surface of the annular body.

  Further, according to the present invention, in the lens holding jig according to the above-described invention, the rebound preventing portion is configured by an inclined surface.

  Furthermore, the present invention includes a step of holding the outer periphery of the lens using the lens holding jig according to the invention, and a step of applying a coating solution to the coated surface of the lens held by the lens holding jig, And a step of heating and curing the coating solution applied to the surface to be coated of the lens.

  In the lens holding jig according to the present invention, the pressing rod is pressed in line contact or surface contact with the edge surface of the lens, so that the lens can be held in a stable state. In addition, since the pressing rod is mounted perpendicular to the support rod and the lens pressing portion does not contact the optical surface, after coating one optical surface, the other optical surface is continuously coated by inverting it. be able to. Further, when the edge surface of the lens is pressed, the pressing rod does not tilt with respect to the support rod, and the lens can be held in a stable state. Further, since the surface of the pressing rod is covered with a soft material, there is no possibility of damaging the lens. Further, the lens holding means can be applied to various lenses having different outer diameters by advancing and retracting according to the outer diameter of the lens. Furthermore, since the lens holding means is fixed to the annular body by the fixing means, it is possible to ensure the lens gripping performance that can sufficiently withstand the high speed spin coating (3000 to 5000 rotations). As the fixing means, appropriate means such as a set screw, a bolt, and a clamp device can be used.

  Further, in the present invention, since the bounce preventing portion for preventing the coating solution from rebounding is provided on the inner peripheral surface of the annular body, the occurrence of defective products due to the rebound solution can be reduced. As the rebound preventing portion, a slope (tapered surface) is used that reflects obliquely downward or diagonally upward and in a direction opposite to the lens direction when the coating solution scattered by the centrifugal force hits the lens surface.

  Furthermore, according to the coating method of the present invention, since the lens holding jig is used, coating can be performed satisfactorily.

Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.
1 is an external perspective view showing an embodiment of a lens holding jig and its jig assembling apparatus according to the present invention, FIG. 2 is a sectional view taken along line II-II in FIG. 1, and FIG. FIG. 4 is an external perspective view showing a state where the lens is held by the lens holding means, and FIG. 5 is an external perspective view of the jig assembling apparatus from which the lens holding jig is removed. FIGS. 6 and 6 are exploded perspective views of the lens holding means, and FIGS. 7A and 7B are a sectional view showing a state of the clamping device before clamping and a sectional view showing a state after clamping. In these drawings, the jig assembling apparatus 1 includes a mounting plate 3 provided above a base plate 2 so as to be movable up and down, and a lens holding jig 21 is installed on the mounting plate 3. .

  On the upper surface of the base plate 2, three support pins 4 for supporting the mounting plate 3 so as to be movable up and down are projected on the same circumference and at equal intervals in the circumferential direction. The upper end portions of these support pins 4 pass through a through hole 5 formed near the outer periphery of the mounting plate 3 and an insertion hole 27 of an annular body 22 described later of the lens holding jig 21 above the annular body 22. A compression coil spring 7 that urges the mounting plate 3 upward is elastically mounted at the lower end. A bearing member 6 that pivotally supports the support pin 4 is press-fitted and fixed in the through hole 5. The compression coil spring 7 has an upper end pressed against the lower surface of the bearing member 6 and a lower end pressed against the upper surface of the base plate 2.

  On the upper surface of the base plate 2, three clamping devices 10 for fixing the mounting plate 3 to the support pins 4 are further provided. As shown in FIGS. 2 and 7, the clamp device 10 is attached to a support column 11 which is positioned outside the mounting plate 3 and is erected on the base plate 2, and to the upper end portion of the support column 11 so as to be vertically movable. The clamp member 12 and a fixing screw 13 for fixing the clamp member 12 to the support column 11 are configured. A screw hole 14 into which the fixing screw 13 is screwed is formed at the upper end portion of the column 11. The clamp member 12 is formed of a substantially rectangular parallelepiped block, and has a through-hole 15 that opens in the vertical direction and through which the column 11 passes, and a plate holding groove 16 that is formed in the front end surface 12a and into which the outer peripheral edge of the mounting plate 3 is fitted. And a long hole 17 formed in the rear end surface 12b and extending in the vertical direction. The fixing screw 13 is inserted into the elongated hole 17 and screwed into the screw hole 14 of the support column 11, thereby fixing the clamp member 12 to the support column 11. The mounting height of the clamp member 12 with respect to the column 11 is adjusted within the range of the long hole 17. The through hole 15 and the long hole 17 communicate with each other.

  2 to 4, on the upper surface of the mounting plate 3, three lens receivers 19 on which a spectacle lens 20 (hereinafter referred to as a lens) 20 before edging is placed, and the lens holding jig 21. Is arranged.

  The lens 20 is a meniscus lens having an outer diameter of, for example, 60 mmφ, 65 mmφ, 70 mmφ, 75 mmφ, and 80 mmφ having a convex optical surface 20a, a concave optical surface 20b, and an edge surface 20c, and the convex optical surface 20a. Is placed on the lens receiver 19.

  The lens receivers 19 are made of small pieces of plates and are arranged at equal intervals in the circumferential direction so as to be located concentrically around the center of the mounting plate 3, and are fixed to the mounting plate 3 by set screws 25. Has been. The lens receiver 19 may be made of a material having a smooth surface and a small friction coefficient.

  The lens holding jig 21 is provided with the annular body 22, three lens holding means 40 that are arranged on the annular body 22 at equal intervals in the circumferential direction, and that hold the edge surface of the lens 20. Three bolts 45 as fixing means for fixing the means 40 to the annular body 22 are provided.

  The annular body 22 surrounds the periphery of the lens 20 and the lens receiver 19 by having an inner diameter (for example, 110 mmφ) sufficiently larger than the outer diameter of the lens 20 and an outer diameter smaller than the outer diameter of the mounting plate 3 described above. Three insertion holes 27 and screw mounting holes 28 (FIGS. 2 to 4) each made of a ring and opened on the upper and lower surfaces, and three rod mounting holes 29 (FIG. 6) opened on the inner and outer peripheral surfaces, respectively. Are formed radially. The three insertion holes 27 are formed at equal intervals in the circumferential direction of the annular body 22, and the upper end portions of the support pins 11 pass therethrough. The opening edge of the insertion hole 27 forms a tapered hole by dishing to facilitate the insertion of the support pin 11. The bolt mounting holes 28 are formed at equal intervals in the circumferential direction of the annular body 22 so as to be positioned between two adjacent insertion holes 27, 27. The bolt mounting hole 28 is formed as a long hole that is long in the radial direction of the annular body 22. Similarly, the rod mounting holes 29 are formed at equal intervals in the circumferential direction of the annular body 22 so as to be positioned between two adjacent insertion holes 27, 27, respectively, thereby communicating with the bolt mounting holes 28, respectively. is doing. A key groove 30 is formed on the bottom surface of the rod mounting hole 29.

  Furthermore, a rebound preventing portion 31 is provided on the inner peripheral surface of the annular body 22 to prevent the coating solution splashed from the outer periphery of the lens due to centrifugal force during spin coating from rebounding in the lens direction. When the coating solution scattered by the centrifugal force hits the lens surface, the rebound prevention unit 31 is diagonally downward or diagonally upward or diagonally upward and downward, and the outside of the annular body 22, in other words, the direction in which the lens 20 is present. It consists of slopes that reflect in the opposite direction. In this case, in the present embodiment, a projecting body having a V-shaped cross section is integrally projected over the entire circumference on the inner circumferential surface of the annular body 22, and the two tapered surfaces (slopes) 31a and 31b are used. Although the example which formed the bounce prevention part 31 and reflected diagonally upward and diagonally downward was shown, it does not restrict to this but toward the taper hole which expands the center hole of the annular body 22 upward, or downward It is good also as a taper hole which expands, and making the taper surface into a bounce prevention part.

  The lens holding means 40 holds three positions of the edge surface 20c of the lens 20, and is disposed in each rod mounting hole 29 of the annular body 22 so as to be able to advance and retract and to be prevented from rotating. Yes. The lens holding means 40 includes a horizontal support rod 41 and a pressing rod 42 (shown in the figure) that is connected to the front end of the support rod 41 so that the center is perpendicular to the support rod 41 and extends above and below the support rod 41. 6), it is formed in a T shape that is laterally viewed from the side. The support rod 41 is formed in a cylindrical shape, penetrates the rod attachment hole 29 so as to be able to advance and retreat, and a key 44 that is slidably fitted in the key groove 30 is attached to the lower surface thereof. Prevents rotation. A screw hole 46 into which the bolt 45 is screwed is formed at the center of the upper surface of the support rod 41. The bolt 45 is screwed into the screw hole 46 through the bolt mounting hole 28.

  An urging spring 47 that urges the support rod 41 outward in the radial direction of the annular body 22 is attached to the rear end portion of the support rod 41, that is, the protruding end portion that projects to the outer peripheral side of the annular body 22. . The urging spring 47 is formed of a compression coil spring, and is attached so that one end presses a collar 48 protruding from the rear end of the support rod 41 and the other end presses the outer periphery of the annular body 22.

  The pressing rod 42 is formed in a columnar shape, and a rear side portion (a portion on the opposite side to the lens side) of the central portion in the longitudinal direction is connected to the front end of the support rod 41 by a connecting pin 51. For this reason, a fitting recess 50 in which the front end portion of the support rod 41 is fitted is formed in the pressing rod 42. The front end of the connecting pin 51 is fitted in a fitting hole 53 formed in the vertical wall of the fitting recess 50, and the rear end is fitted in a fitting hole 54 formed in the front end surface of the support rod 41. The fitting hole 53 is formed above the center of the recessed portion 50, and the fitting hole 54 is formed to be displaced above the center of the support rod 41, thereby preventing the pressing rod 42 from rotating with respect to the support rod 41. is doing.

  On the other hand, the portion of the pressing rod 42 opposite to the portion where the fitting recess 50 is formed, that is, the front central portion facing the lens is a lens pressing portion that presses and holds the edge surface 20c of the lens 20. 55 is formed. The lens pressing portion 55 is positioned on the extension of the axis of the support rod 41 and holds the edge surface 20c of the lens 20 in a line contact or surface contact state via the cap 56. The cap 56 is formed of a soft material such as rubber or synthetic resin so as to protect the lens 20 from being damaged and to securely hold the lens, and covers the outer periphery of the pressing rod 42.

  Furthermore, the jig assembling apparatus 1 includes a pressing device 60 that simultaneously presses all the pressing rods 42 against the edge surface 20c of the lens 20 by operating all the lens holding means 40 simultaneously. The pressing device 60 corresponds to the lens holding means 40, and corresponds to the three rotating levers 62 arranged at equal intervals in the circumferential direction on the mounting plate 3. It is composed of three cam followers 63 disposed on the base plate 2 side, and a weight 64 (FIGS. 1 and 2) as pressurizing means that pressurizes the annular body 22 and operates all the lens holding means 40 simultaneously. Has been.

  The rotating lever 62 is pivotally supported by a horizontal rotating shaft 67 disposed below the mounting plate 3 via a mounting plate 66 so as to be rotatable in the vertical direction. A pressing member 68 that extends above the mounting plate 3 and behind the support rod 41 and that presses the support rod 41 when the lens is held is attached to the upper end. The pressing member 68 is screwed into a screw mounting hole provided at the upper end portion of the rotating lever 62 and is fixed by a nut, whereby the projecting dimension from the rotating lever 62 can be adjusted. In addition, a hemispherical protrusion 68 a is integrally provided at the center of the front end surface of the pressing member 68.

  Further, the rotation lever 62 is biased in the return direction by the return spring 69 attached to the rotation shaft 67, that is, in the direction in which the pressing member 68 is separated from the support rod 41, so that the required angle is set rearward. Inclined and the back is always in pressure contact with the cam follower 63. The return spring 69 is composed of a torsion coil spring, is attached to the rotary shaft 67, has one end locked to the mounting plate 66, and the other end locked to the rotating lever 62. The cam follower 63 is rotatably attached to one side of the block 70 fixed on the base plate 2. The rear end of the support rod 41 is always pressed against the protrusion 68 a of the pressing member 68 by the spring force of the biasing spring 47.

  The weight 64 is made of a disk having an outer diameter larger than that of the annular body 22, and the pin hole 71 and the bolt hole 72, each of which has three diameters, correspond to the support pins 4 and the bolts 45. Is formed. The pin hole 71 and the bolt hole 72 are constituted by through holes that open in the vertical direction of the weight 64. The weight 64 is placed on the annular body 22 when the lens 20 is held by the lens holding means 40, so that all the lens holding means 40 are simultaneously operated by the gravity. That is, the weight 64 is placed on the annular body 22 and presses the annular body 22 by its gravity. For this reason, the mounting plate 3 descends within the range of the long hole 17 of the clamp member 12 against the spring force of the compression coil spring 7. At this time, the fixing set screw 13 is loosened in advance. When the mounting plate 3 is lowered, the rotation lever 62 is also lowered integrally with the mounting plate 3. At this time, since the back surface of the rotating lever 62 descends along the cam follower 63, the rotating lever 62 gradually rotates counterclockwise in FIG. 2 around the rotating shaft 67 and the protrusion 68 a of the pressing member 68 is raised. The rear end surface of the support rod 41 is pressed against the biasing spring 47. For this reason, the support rod 41 moves forward by a certain amount and presses the pressing rod 42 against the edge surface 20c of the lens 20 with a predetermined pressing force, whereby the three positions of the edge surface 20c of the lens 20 are held by the lens holding means 40. The As such a weight 64, in order to adjust the pressing force by the lens holding means 40, a plurality of kinds of weights having different weights are prepared and selectively used according to the center thickness, outer diameter, etc. of the lens 20. Is done.

  When a coating solution such as a hard coat is applied to the optical surface 20a (or 20b) of the lens 20 by the spin coating device, the lens 20 is first placed on the placement plate 3 of the jig assembling device 1. Further, the fixing screw 13 is loosened, the weight 64 is placed on the annular body 22, the annular body 22 and the placing plate 3 are lowered against the compression coil spring 7, and the rotating lever 62 is moved. Rotate upright. When the turning lever 62 turns and rises forward, the protrusion 68 a of the pressing member 68 presses the rear end surface of the support rod 41 against the compression coil spring 47. For this reason, the support rod 41 advances and presses the lens pressing portion 55 of the pressing rod 42 against the edge surface 20 c of the lens 20. Then, the fixing screw 13 is tightened to fix the clamp member 12 to the support 11, the weight 64 is removed from the annular body 22, and the bolt 45 is tightened from above the weight 64 in this pressed state to fix the support rod 41 to the annular body. 22 is fixed. Thereafter, the annular body 22 holding the lens 20 is removed from the jig assembling apparatus 1 from which the weight 64 is removed, and the lens holding jig 21 holding the lens 20 on the rotation shaft of the spin coating apparatus is removed. Wearing and rotating the rotating shaft at a high speed (for example, 3000 to 5000 rpm), the coating solution is dropped onto the optical surface 20a on the lens 20, and applied to the entire optical surface 20a with a uniform film thickness by centrifugal force. .

  When the application of the coating solution to the optical surface 20a is completed, the lens holding jig 21 holding the lens 20 is removed from the rotating shaft. Then, the lens holding jig 21 holding the lens 20 is reversed and mounted on the rotation shaft of the spin coating apparatus, and the coating solution is applied to the optical surface 20b on the upper side in the same manner as described above.

  Thus, in the lens holding jig 21 having the above-described structure, the lens pressing portion 55 of the pressing rod 42 is provided on the extension of the axis of the support rod 41 and is in surface contact with the edge surface 20c of the lens 20 or Since the lens 20 is pressed and held vertically in a line contact state in the thickness direction of the lens 20, when the lens pressing portion 55 is pressed against the lens, the pressing rod 42 does not tilt with respect to the support rod 41. A uniform force can be applied to the edge surface 20 c of the lens 20. Therefore, the lens can be reliably held in a stable state, and the lens gripping performance that can sufficiently withstand the high speed rotation (3000 to 5000 rotations) of the spin coat can be ensured. In addition, it is possible to obtain a sufficient holding force for a lens subjected to Mets processing. Moreover, since the lens pressing part 55 of the pressing rod 42 does not contact the optical surfaces 20a and 20b of the lens 20, the coating solution can be satisfactorily applied to both the optical surfaces 20a and 20b.

  Further, since the surface of the pressing rod 42 is covered with a cap 56 made of a soft material such as synthetic resin or rubber, there is no possibility of damaging the lens 20. Further, since the inner diameter of the annular body 22 which is the main component of the lens holding jig 21 is set larger than that of the lens 20 having the largest outer diameter, the lens holding means 40 is advanced and retracted according to the size of the lens. Therefore, it can be used in common for lenses of various sizes.

  Furthermore, since the rebound preventing portion 31 is provided on the inner peripheral surface of the annular body 22, there is no possibility that the coating solution scattered from the outer periphery of the lens 20 due to centrifugal force will rebound and adhere to the optical surface 20a or 20b of the lens 20. Generation of defective products can be prevented.

In the above-described embodiment, the example in which the edge surface 20c of the lens 20 is held by the three lens holding means 40 has been described. However, the present invention is not limited to this, and the lens 20 is held by three or more, for example, four lens holding means. It may be.
In the embodiment described above, the lens holding means 40 is formed in a T-shape that is laterally viewed from the side. However, the present invention is not limited to this, and a vertical support rod 41 and a horizontal connected to the lower end of the support rod 41 are used. It may be formed in an L shape in a side view with the pressing rod 42. In that case, the lens pressing portion 55 is formed at the lower end of the pressing rod 42 on the side opposite to the support rod 41.

  The lens holding jig according to the present invention is applicable not only to spectacle lenses but also to various lenses, such as camera lenses.

1 is an external perspective view showing an embodiment of a lens holding jig and a jig assembling apparatus according to the present invention. It is the II-II sectional view taken on the line of FIG. It is an external appearance perspective view which shows the state which mounted the lens on the mounting plate. It is an external appearance perspective view which shows the state which hold | maintained the lens with the lens holding means. It is an external appearance perspective view which shows the state which removed the jig | tool for lens holding | maintenance of a jig | tool assembly apparatus. It is a disassembled perspective view of a lens holding means. (A) is sectional drawing which shows the state before clamping of a clamp apparatus, (b) is sectional drawing which shows the state after clamping.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Jig assembly apparatus, 2 ... Base plate, 3 ... Mounting plate, 4 ... Support pin, 7 ... Compression coil spring, 10 ... Clamp apparatus, 20 ... Eyeglass lens, 21 ... Lens holding jig, 22 ... Ring Body, 29 ... insertion hole, 31 ... bounce prevention part, 40 ... lens holding means, 41 ... support rod, 42 ... pressing rod, 45 ... bolt, 55 ... lens pressing part, 56 ... cap, 60 ... pressing device, 62 ... Rotating lever, 63 ... cam follower, 64 ... weight, 68 ... pressing member.

Claims (5)

An annular body surrounding the periphery of the lens installed on the mounting plate;
At least three lens holding means disposed on the annular body at equal intervals in the circumferential direction and holding an edge surface of the lens;
A plurality of fixing means for fixing each lens holding means to the annular body,
The annular body has the same number of insertion holes as the lens holding means that are opened on the inner peripheral surface and the outer peripheral surface and are radially formed at equal intervals in the circumferential direction,
The lens holding means is provided so as to be able to advance and retreat through the insertion hole of the annular body and prevent rotation, and is provided at the front end of the support rod so as to be orthogonal to the support rod, and presses the edge surface of the lens Is formed in a T-shape or L-shape that is laterally viewed from the side,
The pressing rod has a surface covered with a soft material, and the lens pressing portion is in line contact or surface contact with the edge surface of the lens. The lens holding jig according to claim 1,
The lens holding jig, wherein the lens pressing portion is a portion on an extension of the axis of the support rod. The lens holding jig according to claim 1 or 2,
A jig for holding a lens, wherein an anti-bounce portion for preventing the coating solution from rebounding in the lens direction is provided on the inner peripheral surface of the annular body. The lens holding jig according to claim 3,
The lens holding jig, wherein the rebound preventing portion is a slope. A step of holding the outer periphery of the lens using the lens holding jig according to any one of claims 1 to 4,
Applying a coating solution to the coated surface of the lens held by the lens holding jig;
Heating and curing the coating solution applied to the coated surface of the lens;
A lens coating method comprising:

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