JP2018154507A - Manufacturing apparatus of optical element, manufacturing method of optical element, and setting method of manufacturing apparatus of optical element - Google Patents

Abstract

An optical element manufacturing apparatus, an optical element manufacturing method, and an optical element manufacturing apparatus setting method having high eccentricity accuracy without adjusting the parallelism between plates. An optical element manufacturing apparatus presses and deforms a molding material M arranged in a mold set 10 to mold an optical element, and presses the upper mold 11 and the lower mold 12 constituting the mold set 10. An upper plate 31 and a lower plate 32 each having press surfaces 311 and 321 for applying pressure are provided, and the upper plate 31 transfers a relative inclination between the press surfaces 311 and 321 in the upper plate 31 and the lower plate 32. An attachment 36 capable of mounting the member 35 on the press surface 311 is provided. [Selection] Figure 1

Description

  The present invention relates to an optical element manufacturing apparatus, an optical element manufacturing method, and an optical element manufacturing apparatus setting method.

  In general, in an optical element manufacturing apparatus, a molding die is arranged between flat plates that are arranged to face each other and at least one of which is movable, and the molding material is heated, pressed, and cooled by the die. By doing so, an optical element is manufactured.

  The optical element manufactured by such a method has a problem that the eccentric accuracy of the manufactured optical element deteriorates unless the press surfaces of the two plates that press the mold are parallel to each other. For example, Patent Document 1 proposes a manufacturing apparatus provided with an adjustment mechanism that adjusts the parallelism between the plates.

Japanese Patent No. 5523133

  The adjustment of the parallelism between the plates using the adjustment mechanism proposed in Patent Document 1 is an extremely precise adjustment operation, and in consideration of the safety of the operation, the manufacturing apparatus is not subjected to heat or pressure. There is a need to do. However, in the process of heating and press molding that actually manufactures the optical element, it is inevitably affected by thermal deformation of the manufacturing apparatus and bending of the manufacturing apparatus due to the pressing force of the plate. Even if it adjusts, parallelism will change during manufacture.

  In addition, in the adjustment mechanism proposed in Patent Document 1, it is normal that there is a variation in the tightening degree of the screw for attaching the adjustment mechanism to the manufacturing apparatus. It is difficult to adjust the degree accurately. In addition, as the degree of parallelism is adjusted, the more accurate the decentration accuracy of the optical element is, the more precise it becomes, and the adjustment becomes difficult. In the first place, if the parallelism between the plates is to be adjusted, a complicated adjustment mechanism is required, and the cost increases.

  The present invention has been made in view of the above, and it is possible to set an optical element manufacturing apparatus, an optical element manufacturing method, and an optical element manufacturing apparatus having high decentering accuracy without adjusting the parallelism between the plates. It aims to provide a method.

  In order to solve the above-described problems and achieve the object, an optical element manufacturing apparatus is an optical element manufacturing apparatus that molds an optical element by pressing and deforming a molding material disposed in a mold. An upper plate and a lower plate each having a pressing surface for applying a pressing force to an upper die and a lower die constituting the die, and the upper plate has a relative inclination between the pressing surfaces of the upper plate and the lower plate. The transferred correction member is provided with a connection member that can be mounted on the press surface.

  Further, the optical element manufacturing apparatus according to the present invention includes the correction member in the above invention, and the correction member has an inclination transferred to the correction member so that the inclination between the press surfaces coincides. The connecting member is attached to the press surface of the upper plate.

  In the optical element manufacturing apparatus according to the present invention as set forth in the invention described above, the correction member is made of a material that does not deform in a manufacturing temperature range of the molding material.

  In order to solve the above-described problems and achieve the object, an optical element manufacturing method includes a molding material in which a pressing force is applied to a mold by the press surfaces of an upper plate and a lower plate, and the mold is disposed in the mold. An optical element manufacturing method using a manufacturing apparatus for forming an optical element from an upper die having a flat transfer surface, each of a molding material for a correction member made of a material that does not deform in the manufacturing temperature zone of the molding material And a pressing surface of the upper plate and the lower plate by placing a pressing force on the correction member die by the upper plate and the lower plate. A setting step of mounting the correction member on the press surface of the upper plate after forming a correction member that has transferred the relative inclination of each other, and a desired optical device The molding material is disposed in the mold composed of an upper mold and a lower mold having a transfer surface for creating a surface, and is pressed onto the mold by the upper plate and the lower plate via the correction member. And a manufacturing process of applying pressure and transferring the optical functional surface to the molding material.

  In order to solve the above-described problems and achieve the object, the setting method of the optical element manufacturing apparatus applies a pressing force to the mold by the respective press surfaces of the upper plate and the lower plate, and is arranged in the mold. A method of setting a manufacturing apparatus for molding an optical element from a molding material, wherein an upper die and a lower die each having a flat transfer surface are formed on a correction member molding material made of a material that does not deform in the manufacturing temperature zone of the molding material. The correction plate is disposed in a correction member mold, and a pressing force is applied to the correction member mold by the upper plate and the lower plate, so that the press surfaces of the upper plate and the lower plate are relative to each other. After the correction member to which the general inclination is transferred is molded, the correction member is mounted on the press surface of the upper plate.

  According to the present invention, the relative inclination between the press surfaces can be offset by pressing the molding material via the correction member that has transferred the relative inclination between the press surfaces in the upper plate and the lower plate. Therefore, it is possible to manufacture an optical element having high eccentricity accuracy without adjusting the parallelism between the plates.

FIG. 1 is a cross-sectional view showing a configuration of an optical element manufacturing apparatus according to an embodiment of the present invention. FIG. 2 is a flowchart showing a method for manufacturing an optical element according to an embodiment of the present invention. FIG. 3 is a cross-sectional view for explaining a setting method of the optical element manufacturing apparatus according to the embodiment of the present invention. FIG. 4 is a cross-sectional view for explaining an optical element manufacturing apparatus and an optical element manufacturing method using the same according to an embodiment of the present invention. FIG. 5 is a plan view showing an example of a correction member in the optical element manufacturing apparatus according to the embodiment of the present invention. FIG. 6 is a plan view showing another example of the correction member in the optical element manufacturing apparatus according to the embodiment of the present invention. FIG. 7 is a cross-sectional view showing a configuration of a modification of the optical element manufacturing apparatus according to the embodiment of the present invention. FIG. 8 is a cross-sectional view showing a conventional optical element manufacturing apparatus and an optical element manufacturing method using the same.

  Embodiments of an optical element manufacturing apparatus, an optical element manufacturing method, and an optical element manufacturing apparatus setting method according to the present invention will be described below with reference to the drawings. The present invention is not limited to the following embodiments, and constituent elements in the following embodiments include those that can be easily replaced by those skilled in the art or those that are substantially the same.

[Optical element manufacturing equipment]
The optical element manufacturing apparatus (hereinafter referred to as “manufacturing apparatus”) according to the present embodiment presses and deforms a molding material (glass material) placed in a mold to mold an optical element (glass lens). Yes, as shown in FIG. 1, a molding apparatus 1 and a mold set (mold) 10 are provided.

  The molding apparatus 1 is a circulation type molding apparatus that continuously circulates the mold set 10 conveyed into the molding chamber 30 and molds optical elements. The molding apparatus 1 includes a molding chamber 30 including a heating stage 30a, a press stage 30b, and a cooling stage 30c, and a transport arm (not shown) that transports the mold set 10 into the molding chamber 30.

  The molding chamber 30 includes a molding chamber upper plate 301, a molding chamber lower plate 302, an inlet shutter 303 that opens and closes when the mold set 10 is introduced into the molding chamber 30, and when the mold set 10 is discharged from the molding chamber 30. And an exit shutter 304 that opens and closes. The molding chamber 30 is filled with an inert gas (for example, nitrogen gas).

  Each stage (heating stage 30a, press stage 30b, and cooling stage 30c) of the molding chamber 30 is provided with an upper plate 31 on the upper side and a lower plate 32 on the lower side. The upper plate 31 and the lower plate 32 of each stage have press surfaces 311 and 321 for applying a pressing force to the upper die 11 and the lower die 12 constituting the die set 10. Further, the upper plate 31 and the lower plate 32 of each stage are each provided with a heater, and the molding material M in the mold set 10 is heated or cooled via the heater. Further, the upper plate 31 of each stage is provided with a drive unit 33 on the upper side, and the drive unit 33 can perform vertical movement and press on the mold set 10.

  The drive unit 33 is fixed to the upper plate 301 of the molding chamber by a fixing screw 34. The upper plate 31 of the press stage 30b includes an attachment (connecting member) 36 that can be removed by screwing and that can attach (lock) the correction member 35 to the press surface 311. As will be described later, the correction member 35 has a relative inclination between the press surfaces 311 and 321 of the upper plate 31 and the lower plate 32 transferred thereto, and is attached to the press surface 311 by an attachment 36. The attachment 36 has an L-shaped cross section.

  The mold set 10 includes an upper mold 11, a lower mold 12, and a sleeve 13. The upper mold 11 and the lower mold 12 are each formed in a stepped cylindrical shape, and are arranged so that the transfer surfaces 11a and 12a face each other.

  The transfer surface 11a of the upper mold 11 is for creating a concave optical functional surface on the optical element. That is, the upper mold 11 has a spherical convex portion formed on the end surface facing the lower mold 12, and the convex portion constitutes the transfer surface 11a.

  The transfer surface 12a of the lower mold 12 is for creating a convex optical functional surface on the optical element. That is, the lower mold 12 has a spherical recess formed on the end surface facing the upper mold 11, and the recess constitutes the transfer surface 12a.

  The sleeve 13 supports the upper mold 11 and the lower mold 12 and positions both of them. The sleeve 13 is formed in a cylindrical shape and is disposed around the upper mold 11 and the lower mold 12.

  Here, the inclination between the upper plate 31 and the lower plate 32, which is a problem to be solved by the present invention, will be described with reference to FIG. As shown in the figure, the press surface 311 of the upper plate 31 and the press surface 321 of the lower plate 32 have a relative inclination α that is not 0 due to various processing errors, mounting errors, and the like. .

  This inclination α is affected by the thermal expansion and thermal deformation of the members constituting the molding apparatus 1 or the bending due to the pressing force of the molding chamber 30 fixing the press stage 30b when the optical element is actually molded. Change in response. Note that the inclination α is actually assumed to be a minute value of about 1/60 degrees, for example, and FIG. 8 exaggerates the value of the inclination α for convenience of explanation (FIG. 3 to be described later). The inclination α shown in FIGS. 4 and 7 is also the same).

  As shown in FIG. 8, when the molding material M is pressed in a state where the upper and lower press surfaces 311 and 321 have a relative inclination α, the inclination α is also transferred to the optical element after molding. As shown in the figure, when the gap between the upper mold 11 and the lower mold 12 and the sleeve 13 is sufficiently large, the inclination α is directly transferred to the optical element after molding. On the other hand, for example, when the gap between the upper mold 11 and the lower mold 12 and the sleeve 13 is small, the inclination α is regulated by the sleeve 13, so that the upper mold 11 and the lower mold 12 are the optical elements after molding. The maximum possible inclination (<inclination α) is transferred. As described above, the conventional molding apparatus has a problem that an inclination that is not at least 0 is transferred to the optical element after molding.

  Therefore, in the present embodiment, as shown in FIG. 1, the correction member 35 to which the relative inclination α between the upper and lower press surfaces 311 and 321 is previously transferred is manufactured, and the gap between the upper plate 31 and the mold set 10 is manufactured. Further, the inclination α is offset by pressing the correction member 35 with the correction member 35 interposed therebetween.

[Method for Manufacturing Optical Element]
Hereinafter, a method for manufacturing an optical element according to the present embodiment using a manufacturing apparatus will be described with reference to FIGS. As shown in FIG. 2, the manufacturing method of the optical element according to the present embodiment includes a manufacturing device setting step (manufacturing device setting method) S1 and an optical element manufacturing step S2.

  In the manufacturing apparatus setting step S1, as shown in FIG. 3, a correction member molding material Mc made of a material that does not deform in the manufacturing temperature zone of the molding material M is placed in a correction member mold set (correction member mold) 40. In this step, the correction member 35 is formed by applying the pressing force to the correction member mold set 40 by the upper plate 31 and the lower plate 32 and then mounting the correction member 35 on the upper plate 31.

  In the setting step S1 of the manufacturing apparatus, for example, a glass material “L-LAH53” is used as the correction member molding material Mc. L-LAH53 is a material having a yield point At = 607 ° C. and a transition point Tg = 574 ° C., and is easy to mold near 607 ° C. and has a property that does not deform below 574 ° C. The correction member molding material Mc is not limited to the L-LAH 53, but is composed of a material that does not deform in the manufacturing temperature range of the molding material M, as will be described later. The shape of the correction member molding material Mc is, for example, a cylindrical shape having a thickness of 5 mm, and the upper surface and the lower surface are polished.

  The correction member mold set 40 includes an upper mold 41, a lower mold 42, and a sleeve 43. Each of the upper mold 41 and the lower mold 42 has planar transfer surfaces 41a and 42a that are plane processed with high precision, and transfers the planar upper and lower surfaces to the correction member molding material Mc. A sufficiently large gap of, for example, about 0.1 mm is formed between the upper die 41 and the lower die 42 and the sleeve 43, and the relative inclination α between the upper and lower press surfaces 311 and 321 is set. It is configured not to regulate. Further, in the setting step S1 of the manufacturing apparatus, the configurations other than the correction member mold set 40 and the correction member molding material Mc are the same as those in the optical element manufacturing step S2 described later, and the inclination α can be reproduced. Set the environment.

(Heating process)
In the setting step S1 of the manufacturing apparatus, first, the correction member molding material Mc is arranged in the correction member mold set 40, and the correction member mold set 40 is conveyed to the heating stage 30a of the molding chamber 30 by a conveyance arm (not shown). . In the heating stage 30a, the correction member mold set 40 is heated to 620 ° C. (see step S11 in FIG. 2), and the correction member molding material Mc is softened.

(Pressing process)
Subsequently, as shown in FIG. 3, the correction member mold set 40 is transported to the press stage 30b by a transport arm (not shown), and a pressure of 3 MPa is applied to the upper plate 31 by the drive unit 33 while maintaining 620 ° C. It gives and presses (refer step S12 of FIG. 2). Accordingly, the correction member molding material Mc is gradually deformed, and when the thickness reaches, for example, 4 mm, the upper plate 31 is retracted upward, and the pressing is finished.

(Cooling process)
Subsequently, the correction member mold set 40 is transferred to the cooling stage 30c by a transfer arm (not shown), and the correction member mold set 40 is cooled to 100 ° C. (see step S13 in FIG. 2). The set 40 is discharged from the molding chamber 30. Through the above procedure, the correction member 35 to which the relative inclination α between the upper and lower press surfaces 311 and 321 is transferred is formed.

(Installation process)
Finally, as shown in FIG. 4, the correction member 35 is mounted on the upper plate 31 by the attachment 36 (see step S14 in FIG. 2). Specifically, the correction member 35 is attached to the press surface 311 of the upper plate 31 by the attachment 36 so that the inclination α transferred to the correction member 35 coincides with the inclination α between the upper and lower press surfaces 311 and 321. Installed.

  Further, when the correction member 35 is mounted, it is necessary to mount the correction member 35 with high accuracy with respect to the rotation direction around the optical axis (see the one-dot chain line in FIG. 4). Accordingly, as shown in FIG. 5, for example, the correction member 35 is provided with a flat portion 353 for restricting the rotation direction in at least one direction and the pressing step of the correction member molding material Mc described above (see FIG. 3). ) And the upper plate 31 is mounted on the press surface 311 of the upper plate 31 while maintaining the positional relationship in the rotational direction around the optical axis.

  5 shows a state in which the correction member 35 and the attachment 36 in FIG. 4 are viewed from above. Reference numeral 361 denotes a fixing screw (not shown) for fixing the attachment 36 to the press surface 311 of the upper plate 31. ) Is a screw hole to be inserted. Further, the flat surface portion 353 of the correction member 35 as shown in the figure is, for example, a restriction member having a shape formed by an arc and a straight line at a position corresponding to the flat surface portion 353 in the pressing process of the correction member molding material Mc described above. It can be formed by pressing in the arranged state.

  In addition, for example, as shown in FIG. 6, a marking 354 made of a linear groove or the like is provided on the upper surface 351 of the cylindrical correction member 35 </ b> A, and the marking 354 and the press surface 311 of the upper plate 31 are provided in advance. The correction member 35A may be attached to the press surface 311 by the attachment 36 so that the shape marking (for example, a linear mark) matches. In this case as well, the correction member 35A is held while maintaining the positional relationship in the rotation direction around the optical axis with the upper plate 31 in the pressing step of the correction member molding material Mc (see FIG. 3). Mount on the press surface 311. The marking 354 shown in the figure is pressed by using the upper die 41 provided with a linear protrusion corresponding to the marking 354 on the transfer surface in the pressing step of the correction member molding material Mc described above, for example. Can be formed.

  In the optical element manufacturing step S2, as shown in FIG. 4, the molding material M is arranged in the mold set 10, and a pressing force is applied to the mold set 10 via the correction member 35 by the upper plate 31 and the lower plate 32. In this process, the optical functional surface is transferred to the molding material M.

  In the optical element manufacturing step S2, as the molding material M, for example, a glass material “S-FPL51” is used. S-FPL51 is a material having a yield point At = 489 ° C. and a transition point Tg = 458 ° C., and is easy to mold near 489 ° C. and has a property that does not deform below 458 ° C. The shape of the molding material M is a ball shape (spherical shape), and the surface is polished.

  In the optical element manufacturing step S2, as described above, in the press stage 30b in which the correction member 35 is mounted on the upper plate 31, the relative inclination α between the upper and lower press surfaces 311 and 321 has the same inclination α. It is offset by the correction member 35. Accordingly, the relative inclination between the lower surface 352 of the correction member 35 and the press surface 321 of the lower plate 32 becomes zero. In FIG. 4, a gap is formed between the lower surface 352 of the correction member 35 and the attachment 36 on the right side of the paper. However, as described above, the actual inclination α is a minute value of about 1/60 degrees. Therefore, the gap described above is actually very small. Furthermore, in the pressing process of the molding material M described later, the correction member 35 is sandwiched between the upper plate 31 and the upper mold 11 without a gap, so the presence or absence of the gap does not cause a problem during molding. .

(Heating process)
In the optical element manufacturing step S <b> 2, first, the molding material M is placed in the mold set 10, and the mold set 10 is transported to the heating stage 30 a of the molding chamber 30 by a transport arm (not shown). And in the heating stage 30a, the type | mold set 10 is heated to 500 degreeC (refer step S21 of FIG. 2), and the molding raw material M is softened.

(Pressing process)
Subsequently, as shown in FIG. 3, the mold set 10 is transported to the press stage 30 b by a transport arm (not shown), and a pressing force of 3 MPa is applied to the upper plate 31 by the drive unit 33 while maintaining 500 ° C. Pressing is performed (see step S22 in FIG. 2). At that time, the pressing force by the upper plate 31 acts on the upper mold 11 via the correction member 35. Further, since the temperature of the correction member 35 at the time of pressing is around 500 ° C., it is sufficiently lower than 574 ° C. (the transition point Tg of L-LAH 53 = 574 ° C.), which is the temperature at which the correction member 35 is deformed. Therefore, the correction member 35 is not deformed during pressing, and it is possible to apply a pressing force to the upper die 11 while maintaining a state in which the relative inclination α between the upper and lower press surfaces 311 and 321 is offset. It becomes. In the pressing step, the molding material M is gradually deformed by such a pressing force, and when the desired thickness is reached, the upper plate 31 is retracted upward and the pressing ends.

(Cooling process)
Subsequently, the mold set 10 is transported to the cooling stage 30c by a transport arm (not shown), the mold set 10 is cooled to 100 ° C. (see step S23 in FIG. 2), and the cooled mold set 10 is discharged from the molding chamber 30. . By the above procedure, an optical element having high eccentricity accuracy in which the relative inclination α between the upper and lower press surfaces 311 and 321 is not transferred can be obtained.

  According to the optical element manufacturing apparatus, the optical element manufacturing method, and the optical element manufacturing apparatus setting method according to the embodiments described above, the press surfaces 311 and 321 of the upper plate 31 and the lower plate 32 are relatively relative to each other. By pressing the molding material M through the correction member 35 to which the inclination is transferred, the relative inclination between the press surfaces 311 and 321 can be canceled out, so that it is high without adjusting the parallelism between the plates. It becomes possible to manufacture an optical element having decentration accuracy.

[Modification]
For example, when the molding material M for molding the optical element is changed to one having a different temperature range, or when maintenance of the molding apparatus 1 is performed, it is necessary to remove the correction member 35 from the upper plate 31. In this case, in the above-described embodiment, the correction member 35 cannot be removed unless the attachment 36 is removed. However, for example, with the configuration shown in FIG. 7, the correction member 35 can be removed more easily. is there.

  The molding apparatus according to the modified example does not include the attachment 36, and a suction portion 37 that performs intake is provided inside the upper plate 31A. The suction unit 37 is connected to a suction device (not shown). In the molding apparatus according to the modified example having such a configuration, the correction member 35 is attracted to and held on the press surface 311 of the upper plate 31A by the suction portion 37. At that time, in order to maintain the positional relationship in the rotational direction around the optical axis between the correction member 35 and the upper plate 31A in the pressing step of the correction member molding material Mc (see FIG. 3), for example, It is preferable that the correction member 35 is attracted to the press surface 311 while pressing the correction member 35 against the press surface 311 using a jig for adjusting the rotational direction.

  The optical element manufacturing apparatus, the optical element manufacturing method, and the optical element manufacturing apparatus setting method according to the present invention have been specifically described above by the embodiments for carrying out the invention. It is not limited to the description, but should be interpreted broadly based on the description of the scope of claims. Needless to say, various changes and modifications based on these descriptions are also included in the spirit of the present invention.

  For example, in the above-described embodiment, the example in which the present invention is applied to the circulating molding apparatus 1 has been described. However, the present invention may be applied to a mold-fixing molding apparatus.

  In the above-described embodiment, the correction member 35 is attached only to the upper plate 31 of the press stage 30b. However, the correction member 35 is attached to the upper plate 31 of the heating stage 30a or the cooling stage 30c as necessary. You may wear it.

DESCRIPTION OF SYMBOLS 1 Molding device 10 Mold set 11 Upper mold 11a Transfer surface 12 Lower mold 12a Transfer surface 13 Sleeve 30 Molding chamber 301 Molding chamber upper plate 302 Molding chamber lower plate 303 Inlet shutter 304 Exit shutter 30a Heating stage 30b Press stage 30c Cooling stage 31, 31A Upper plate 311 Press surface 32 Lower plate 321 Press surface 33 Drive unit 34 Fixing screw 35, 35A Correction member 351 Upper surface 352 Lower surface 353 Planar portion 354 Marking 36 Attachment (connection member)
361 Screw hole 37 Suction part 40 Correction member mold set 41 Upper mold 41a Transfer surface 42 Lower mold 42a Transfer surface 43 Sleeve M Molding material Mc Correction member molding material

Claims (5)

An optical element manufacturing apparatus that molds an optical element by pressing and deforming a molding material disposed in a mold,
An upper plate and a lower plate each having a pressing surface for applying a pressing force to an upper die and a lower die constituting the mold,
The apparatus for manufacturing an optical element, wherein the upper plate includes a connection member that can mount a correction member, which has transferred a relative inclination between the press surfaces of the upper plate and the lower plate, on the press surface. Comprising the correction member;
2. The correction member is mounted on the press surface of the upper plate by the connecting member so that the inclination transferred to the correction member matches the inclination of the press surfaces. 2. An optical element manufacturing apparatus according to 1.   The optical element manufacturing apparatus according to claim 1, wherein the correction member is made of a material that does not deform in a manufacturing temperature range of the molding material. A method of manufacturing an optical element using a manufacturing apparatus that applies a pressing force to a mold by each press surface of an upper plate and a lower plate, and molds the optical element from a molding material disposed in the mold,
The correction member molding material made of a material that does not deform in the manufacturing temperature zone of the molding material is disposed in a correction member mold composed of an upper mold and a lower mold each having a planar transfer surface, and the upper plate And applying a pressing force to the correction member mold by the lower plate to form a correction member in which a relative inclination between the press surfaces of the upper plate and the lower plate is transferred, A setting step of mounting the correction member on the press surface;
The molding material is arranged in the mold composed of an upper mold and a lower mold having a transfer surface for creating a desired optical functional surface, and the upper plate and the lower plate are used to pass the correction member through the correction member. A manufacturing process of applying a pressing force to the mold and transferring the optical functional surface to the molding material;
The manufacturing method of the optical element characterized by the above-mentioned. A method of setting a manufacturing apparatus that applies a pressing force to a mold by each press surface of an upper plate and a lower plate, and molds an optical element from a molding material disposed in the mold,
The correction member molding material made of a material that does not deform in the manufacturing temperature zone of the molding material is disposed in a correction member mold composed of an upper mold and a lower mold each having a planar transfer surface, and the upper plate And applying a pressing force to the correction member mold by the lower plate to form a correction member in which a relative inclination between the press surfaces of the upper plate and the lower plate is transferred, A method for setting an optical element manufacturing apparatus, comprising mounting the correction member on a press surface.

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