JP2941090B2 - Optical element molding method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical element molding apparatus for integrally forming a resin layer on the surface of a glass member.

[0002]

2. Description of the Related Art Conventionally, there has been known a method of forming an optical element having a surface shape which is difficult to process with a glass material by forming a thin film made of a resin material on the surface of a glass member. Such a molding method is generally called replica molding. In this replica molding, first, a liquid active energy ray-curable resin is supplied onto a mold member for transferring a desired surface shape to a resin film, and a glass member is placed thereon. A method has been adopted in which a lid for fixing the member is mounted on a mold member, and the resin is cured by irradiating with an active energy ray.

[0003]

However, in a molding apparatus to which the above-mentioned molding method is applied, conventionally,
For example, as disclosed in Japanese Patent Application Laid-Open No. 1-171932, there is a transparent plate inside the lid for pressing a glass member and pressing it against a mold member.
As disclosed in Japanese Unexamined Patent Publication (Kokai) No. 62-288030, there is a light source inside the lid, so that the resin material cannot be supplied to the mold unless the mold member and the lid are separated. There was a problem. For this reason, there is a problem in that the time required for the pre-process of supplying the resin material is longer than the time during which the molding is actually performed, and the productivity does not increase.

Further, when the separated mold member and the lid are fitted and combined with each other, if one of them is slightly inclined, the mold member and the lid are entangled, and the mold member or the lid is attached. There is a problem in that the mold member and the cover are shortened in life due to wear. Therefore, the present invention has been made in view of the above-described problems, and has as its object to mold an optical element which can surely improve productivity and hardly causes wear of a mold member and a cover member. It is to provide a device.

[0005]

Means for Solving the Problems The above-mentioned problems are solved,
In order to achieve the object, a molding method of an optical element according to the present invention is to integrate a glass material and a resin material by forming a resin layer having a predetermined surface shape on a surface of a glass member by molding. A method for molding an optical element, wherein the glass member is held by holding means for supplying the glass member onto a mold member having a molding surface for molding the resin layer. A first resin supply step of supplying a first amount of the resin material to the mold member; a second resin supply step of supplying a second amount of the resin material onto a molding surface of the mold member; By means, the glass member to which the resin material has been supplied is placed on the resin material on the molding surface, and the first amount of resin material supplied to the glass member and the first amount of resin material supplied to the molding surface. Placement work to match 2 amount of resin material When it is characterized by comprising a curing step of curing the resin material is irradiated with an active energy ray to the combined resin material.

In the method for molding an optical element according to the present invention, the sum of the first amount and the second amount defines the molding surface and the thickness of the resin layer from the molding surface. It is characterized in that it is set to be larger than the volume of the space defined by the supporting portion projecting by an amount and supporting the glass member and the surface of the glass member.

[0007]

[0008]

As described above, since the optical element molding apparatus according to the present invention is constituted, the resin material can be supplied to the mold means without completely separating the mold means and the lid means. In addition, the time required for the step of supplying the resin material can be reliably reduced, and the productivity can be improved. Further, since it is not necessary to completely separate the mold means and the lid means, when they are combined, no galling occurs and the life of the mold member and the lid can be extended.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a view showing a structure of a mold for forming an aspheric lens by replica molding. First, before describing the structure of the mold, the outline of a method of molding an optical element by replica molding will be described. This method of forming an optical element by replica molding is for forming a shape that is difficult to process with a glass material on the surface of a glass material. A resin layer having a desired complicated surface shape made of a resin material. As an example, there is a method in which an aspherical resin film is formed on a surface of a glass member processed into a spherical shape, and an aspherical lens is formed by combining a glass material and a resin material. That is, in order to provide a lens whose aberration is corrected by a single lens, it is necessary to make the surface shape of the lens an aspherical shape. However, it is not easy to process a glass material into an aspherical shape. A lens using a resin that is easy to mold into a spherical shape does not easily gain the power of the lens. Therefore, by combining the two, it is intended to take advantage of only the advantages of the two. The lens manufactured in this manner is called a replica lens.

More specifically, as shown in FIG. 1, a bonding surface 10 which is one surface of a glass member 100 whose surface is processed into a spherical shape.
A resin layer 102 made of a thin film of an active energy ray-curable resin is formed on the layer 0a. Glass member 100
Has a trunk portion 100b on the outer periphery thereof, and the trunk portion 100b is supported on the support member 14 in a state in which the trunk portion 100b is in contact with the upper end portion 14a of the support member 14. The upper end 14a protrudes by a height h from an edge of the molding surface 12a of the mold member 12 for forming the surface shape of the resin material. The amount of protrusion h is defined so as to have a predetermined thickness (for example, about 30 μm) even at a portion where the thickness of the resin layer is the smallest (because the molding surface 12b has an aspherical shape, the thickness of the resin layer depends on the location). Depending on). Then, the resin material in a liquid state filled in the space defined by the molding surface 12a of the mold member 12 and the bonding surface 100a is irradiated with active energy rays, whereby the resin material is cured to form a replica lens. 105 is completed.

The configuration of a mold 10 for forming a replica lens will be described below with reference to FIG. In FIG. 1, a substantially cylindrical mold member 12 is placed on an upper surface of an index table 24, which will be described later, and has an upper end surface for transferring a predetermined shape to the surface of the resin layer as described above. A molding surface 12a is formed. Mold member 12
A cylindrical support member 14 having an inner diameter that fits into the outer diameter of the mold member 12 is mounted on the outer peripheral surface of the mold member 12. The upper end portion 14 a of the support member 14 It protrudes by the height h as shown. The glass member 100 is placed on the upper end 14 a of the support member 14, and the joining surface 100 a of the glass member 100 and the molding surface 12
The replica lens 105 can be formed by curing the resin material filled in the space defined between the replica lens 105 and the resin lens 105.

At one location on the circumference between the mold member 12 and the support member 14, a push-up pin 18 for releasing the molded replica lens 105 from the mold member 12 is slidable in the vertical direction. The push-up pin 18 is slid vertically upward by a pin driving device 19 on the gantry 22 to be described later, so that the replica lens 105 is inserted.
Can be released from the mold member 12.

A cylindrical lid 16 having an inner diameter slightly larger than the outer diameter of the support member 14 and having a sealed upper end is mounted on the outer peripheral surface of the support member 14. The body 16 is slidable in a direction along the central axis of the support member 14 with the inner diameter fitted to the outer diameter of the support member 14. A hole 16a for supplying a resin material onto the molding surface 12a is formed on the upper surface of the lid 16, and through this hole 16a, a tip of a liquid metering device 36 described later is used as a mold 10 , The resin material can be supplied onto the molding surface 12a without completely removing the lid 16 from the support member 14. Also, through this hole 16a,
The resin material is irradiated with active energy rays.

The upper surface of the glass member 100 is pressed by the lower edge portion 16b of the inner periphery of the hole 16a, so that the bonding surface 100a of the glass member 100
4 can be held in close contact with the upper end portion 14a, and the center of the glass member 100 can be aligned with the center of the molding surface 12a by the centripetal action. Further, a hole 16c is formed in the upper side surface of the lid 16, and the cover 16 is slid upward with respect to the support member 14, and a hand 60 described later passes through the hole 16c. By inserting the glass member 100, which is the base material of the replica lens 105, into the mold 10, the mold 1 can be removed without completely removing the lid 16 from the support member 14.
The glass member 100 can be supplied into the inside of the glass member 0.

FIG. 2 is a perspective view showing the shape of the lid 16, as shown, a hole 16a is formed on the upper surface of the lid 16, and a substantially rectangular shape is formed above the outer peripheral surface. Hole 1
6c is formed. A notch 16 d is formed below the outer peripheral surface of the lid 16, and the notch 16 d
The claw body 25g of the opening / closing device 25 described later enters, and the vertical movement of the claw body 25g causes the lid 16 to open and close the support member 14.

FIGS. 3 to 5 are perspective views showing the configuration of a molding apparatus for arranging a plurality of the above-described molds 10 and efficiently molding a plurality of replica lenses. Further, this figure shows an initial state at the time of starting the operation of the molding apparatus. In FIG. 3, a gantry 22 serving as a base of the entire apparatus is fixed on a floor surface in a factory, and in this state, the replica lens 105 is formed. A disk-shaped index table 24 that supports a mold 10 for molding the replica lens 105 is provided at the center of the substantially square upper surface of the gantry 22.
Are supported by the upper surface of the gantry 22 while being lifted by a predetermined height. The disk-shaped index table 24 is supported by a rotating shaft having its center portion upright on the gantry 22 in a state where it is lifted by the above-described predetermined height. Are rotated intermittently (45 ° at a time).

As shown in FIG. 4, the index table 2
Eight dies 10 are arranged at 45 ° intervals in the vicinity of the outer periphery of the upper surface of 4 in a state where its central axis is located on a circumference along a circular locus about the rotation center axis of the index table 24. Have been. Here, for the sake of convenience in the following description, these eight types are respectively assigned to 10A and 10A as shown in the drawing.
, 10H (the respective dies 10A to 10H are at the illustrated positions in the initial state of the molding apparatus).

At the center of the upper surface of the index table 24, when the glass member 100 is supplied into the dies 10A to 10H and when the molded replica lens 105 is taken out from the dies 10A to 10H, the dies 10A to 10H are removed. An opening / closing device 25 for opening and closing the lid 16 with respect to the support member 14 in the vertical direction is provided. At a position surrounding the outer periphery of the index table 24 on the upper surface of the gantry 22,
Six ultraviolet irradiation devices 26A to 26F are arranged at intervals of 45 ° on a circumference around the rotation axis of the index table 24, and 45
Ultraviolet rays are applied to the respective mold members 10A to 10H corresponding to the movement stop positions of the molds 10A to 10H due to the intermittent movement at intervals of °.

Also, for the eight types 10A to 10H,
Since six ultraviolet irradiation devices 26A to 26F are arranged, two of the eight dies 10A to 10H (1 in FIG.
0A, 10H), no ultraviolet irradiating device is disposed at the position corresponding to the two types (10A, 10H in the figure). 1), a first robot 28 and a second robot 30 are arranged, respectively. Among these, the first robot 28 is a robot for supplying the glass member 100 which is the base material of the molded article to the mold (10A), and the second robot 30 is a robot for feeding the completed replica lens 105. It is a robot for taking out from the mold (10H).

On the floor adjacent to the gantry 22, a robot gantry 31 is arranged.
A hand 34 for supplying the glass member 100 to the first robot 28 and removing the completed replica lens 105 from the second robot 30 and a mold 10
A third robot 32 having a supply device 36 for supplying an active energy ray irradiation type resin, for example, in one embodiment, an ultraviolet curing type resin to A to 10H is provided.

To describe these positional relationships in more detail, in the initial state of the molding apparatus 20, a mold 10A to which the glass member 100 is to be supplied is located at a position corresponding to the first robot 28. And the molding device 20
As shown in FIG. 4, which is a view from above vertically, the mold 10B is located at a position rotated 45 ° in the counterclockwise direction about the center of rotation of the index table 24, and corresponds to the mold 10B. The ultraviolet irradiation device 26A for irradiating the mold (10B) with ultraviolet light is disposed at the position where the ultraviolet light is irradiated. Then, from the mold 10B, the index table 2
The mold 10C is located at a position further rotated 45 ° counterclockwise around the rotation center of 4, so that the mold 10C is located.
The dies 10B to 10H are arranged at positions rotated by 45 ° counterclockwise from the dies 10A, respectively.

Ultraviolet irradiation devices 26A to 26F are disposed at positions corresponding to 10B to 10G among these molds, respectively, so that the molds 10B to 10G can be irradiated with ultraviolet light, respectively. . The mold 10H is
The second robot 30 is located at a position rotated 315 ° counterclockwise with respect to the mold 10A, that is, a position rotated 45 ° clockwise with respect to the mold 10H, and at a position corresponding to the mold 10H. . Then, it is possible to remove the molded replica lens 105 from the mold 10H.

That is, in the initial state of the molding apparatus 20, the mold 10A to which the glass member 100 is supplied by the first robot 28 intermittently rotates by 45 ° with the rotation of the index table 24 in the counterclockwise direction. Are moved to the positions where the molds 10A to 10G were located in the initial state, and the ultraviolet irradiation devices 26A to 26F
Irradiates ultraviolet rays for a predetermined time. As a result, the ultraviolet curable resin is cured to a predetermined hardness, and then the mold 1
Then, the replica lens 105, which has been molded by the second robot 30 at this position,
It is taken out from the mold 10A.

On the other hand, at a position between the first robot 28 and the second robot 30 on the gantry 22, a petri dish 40 containing an ultraviolet curable resin is arranged. The third robot 32 is provided with a liquid quantitative supply device 36 for sucking the ultraviolet curing resin from the petri dish 40 and supplying a fixed amount of the ultraviolet curing resin to the molds 10A to 10H and the glass member 100. Have been.

The third robot 32 is further provided with a collet chuck-like gripping hand 34 for gripping the glass member 100 as a base material of the molded product. Then, the pallet 4 on the pallet supply device 42 disposed adjacent to the gantry 22 and within the operation range of the third robot 32
4, the glass member 100 is gripped and taken out by the gripping hand 34 and transferred to the first robot 28.

A control device 46 for controlling the control operations of the robots of the molding apparatus 20 in parallel is disposed on the side of the gantry 22. An operation panel 48 for instructing and monitoring operation is arranged. FIG. 5 is a side view of the molding apparatus, in which the components are arranged in the vertical arrangement as shown.

FIG. 6 is an enlarged view of an opening / closing device 25 for opening and closing the lid 16. At the center of the index table 24, a support 25a is disposed in an upright state, and a support plate 25a is provided on an upper end surface of the support 25a.
b is attached in a state of extending in the horizontal direction. A first air cylinder 25c is attached to the lower surface of the distal end portion of the support plate 25b so that the cylinder rod 25d extends along a vertical line. A second air cylinder 25e is provided at the tip of a cylinder rod 25d of the first air cylinder 25c.
Is mounted along the horizon. Then, the cylinder rod 25f of the second air cylinder 25e
The claw body 25g is attached to the front end of the body in a state of extending horizontally. That is, by the operation of the first and second air cylinders 25c and 25e, the claw body 25g can be moved vertically and horizontally with respect to the index table 24 as indicated by arrows in the drawing. . Therefore, the claw 25 is inserted into the notch 16d of the lid 16 shown in FIG.
g, the first air cylinder 25c
By moving the claw body 25 g upward, the lid 16 can be opened with respect to the support member 14. In addition, by performing the operation reverse to the above, the lid 16
Can be closed with respect to the support member 14.

FIG. 7 is a diagram showing the structure and operation of the first robot 28 and the second robot 30. Since the structures of the first robot 28 and the second robot 30 are almost the same, the structure of the first robot 28 will be described as a representative. In FIG. 7, the main body 50 of the first robot is slidably supported on a rail 52 fixed on the gantry 22, and along the rail 52, along the normal to the outer peripheral portion of the index table 24. It is movable in the direction.

On the upper surface of the main body 50, a column 53 standing upright with respect to the upper surface is mounted so as to be vertically movable by a drive mechanism such as a rack and pinion. A substantially U-shaped support member 56 is mounted via a rotation drive device 54 having a rotation axis. A slide shaft 58 is attached vertically between the U-shaped ends of the support member 56, and a slide member 59 is mounted on the slide shaft 58 so as to be slidable in the vertical direction. ing.
The slide member 59 is further provided with a glass member 100 of a mold 10.
The hand 60 for supplying the inside is installed in a state of extending in the horizontal direction.

The hand 60 has a glass member 100 on its lower surface (in a state shown by a solid line in the drawing) at its tip.
The glass member 100 is held in such a state that the optical axis is aligned with a vertical line. The suction part 60a is connected to a pump provided outside the first robot 28 by a pipe, and the glass member 100 is suctioned to the suction part 60a by sucking air by the pump.

The slide shaft 58 is loosely fitted with a compression spring 57 for urging the upper end surface of the slide member 59 downward with respect to the upper end of the support member 56 in the state shown by the solid line in the figure. The slide member 59 is normally mounted below the support member 56 as shown. Therefore, as shown by the solid line in the drawing, the hand 60 is in a state of being positioned below the support member 56 by the urging force of the compression spring 57 unless a force for pushing the hand 60 upward is applied. Have been.

The support member 56 is rotatable around a rotation axis extending along a horizontal line by the above-described rotary drive device 54. Therefore, the hand 60 is indicated by a solid line in the drawing as necessary. As described above, the suction unit 60a can be moved to a position where the suction unit 60a faces downward, and as shown by a two-dot chain line, a position where the suction unit 60a faces upward. Next, the replica lens 105 is formed by the molding apparatus 20 configured as described above.
The operation of forming the workpiece will be described.

First, an operation of supplying the ultraviolet curing resin and the glass member 30 to the mold 10 by the first robot 28 and the third robot 32 will be described with reference to FIGS. That is, as shown in FIG. 7, the first robot 28 is moved in a direction away from the outer peripheral portion of the index table 24, and thereafter, the rotation driving device 54 is operated to
0, as shown by the two-dot chain line in FIG. 7, the suction unit 60a faces upward. Next, one glass member 100 is taken out of the pallet 44 by the hand 34 provided on the third robot 32, and the glass member 100 is taken out of the first robot 28 as shown by a two-dot chain line in FIG. Hand 60
And the hand 60 of the first robot 28 is operated in the suction state. And in this state,
Liquid metering device 36 provided in third robot 32
Thereby, the first predetermined amount of the resin material is supplied onto the upper surface of the glass member 100, that is, on the bonding surface 100a.

Next, as shown in FIG. 8, the second air cylinder 25e of the opening / closing device 25 is operated to insert the claw 25g into the notch 16d of the lid 16, and then the first air cylinder 25c To operate the cover member 16 with respect to the support member 14.
Slide up. In this state, the distal end of the liquid metering device 36 of the third robot 32 is
And the resin material is applied to the molding surface 12 of the mold member 12.
and a second predetermined amount is supplied onto a. At this time, the total amount of the first predetermined amount and the second predetermined amount is the glass member 100
The space defined between the joining surface 100a of the mold member 12 and the molding surface 12a of the mold member 12 is set to an amount slightly larger than the amount just filled. In addition, during the supply operation of the resin material, the direction of the hand 60 is reversed so that the joining surface 100a of the glass member 100 faces downward by operating the rotation driving device 54.

Next, as shown in FIG. 9, after the distal end of the liquid metering device 36 is released from the inside of the mold 10, the hand 60 is moved from the hole 16 c formed in the lid 16 to the inside of the mold 10. , And the column 52 of the first robot 28 is slid downward. By doing so, the glass member 1
00 moves closer to the upper end portion 14a of the support member 14, but at this time, along with the operation of moving down the glass member 100, as shown in FIG. It is spread out on the surface 12a, and the molding surface 12a and the joining surface 1
It spreads evenly in the space defined between 00a.

At this time, the sliding amount of the support 52 to the lower side is determined by the
It is set to be larger than the amount just in contact with a, and the excessive amount of the column 52 going downward is absorbed by the hand 60 moving upward with respect to the slide shaft 58. Since the hand 60 is urged downward by the compression spring 57, the glass member 100 is pressed onto the upper end portion 14a of the support member 14 by the urging force of the compression spring 57, and the glass member 100 is pressed. Is held in a state in which it is securely adhered to the support member 14.

In this state, the suction state of the hand 60 is released, and the column 52 of the first robot 28 is moved upward.
With the tip of the hand 60 separated from the glass member 100, the hand 60 is retracted from the inside of the mold 10. Thereafter, the first air cylinder 25c is operated again to slide the cover 16 downward with respect to the support member 14, and the glass member 100 is sandwiched by the cover 16 to
4. Fix on top. FIG. 11 shows this state.

Thus, the supply of the resin material and the glass member 100 to the mold 10A is completed. When the supply operation of the resin material and the glass member 100 to the mold 10A is completed, the index table 24 is moved counterclockwise in FIG.
After rotating by 5 °, the mold 10A is moved directly below the ultraviolet irradiation device 12A, and the ultraviolet light is irradiated through the hole 16a of the lid 16 for a predetermined time.

Thereafter, as described above, the mold 10A stops at the positions rotated by 45 ° in the counterclockwise rotation direction, and receives the irradiation of the ultraviolet rays by the ultraviolet irradiation devices 12B to 12F, respectively. The position returns to the position corresponding to the second robot 30. When returning to the position corresponding to the second robot 30, the resin material is completely cured, so that the pin driving device 19 on the gantry 22 is operated to push the replica lens 105 by the push-up pin 18. Raised and released from the mold member 12. Thereafter, the replica lens 105 is taken out of the mold 10A by the hand 60 of the second robot 30 by the procedure opposite to the supply operation of the glass member 100 by the first robot 28, and is shown by a two-dot chain line in FIG. The completed replica lens 105 is held in the same state as the state. After the suction state of the hand 60 of the second robot 30 is released, the third robot 3
The replica lens 105 completed by the second hand 34
Is returned to the pallet 44.

Thus, the molding operation of the replica lens 105 is completed. In the above description, only the movement of the mold 10A has been described. However, when the mold 10A rotates 45 ° in the counterclockwise direction from the initial position, the mold 10H comes to a position corresponding to the first robot 28. The first robot 28 again applies the resin material and the glass member 100 to the mold 10H.
Is supplied. In this manner, the eight dies 10A to 10D are rotated by rotating the index table 24 at every 45 °.
10F is processed one step away from the next die, and once the first die 10A returns to the position corresponding to the second robot 30, the 45D of the index table 24 is thereafter obtained. By rotation every °, 10B ~ 1
The completed replica lens 105 is taken out from 0H, and the replica lens 105 can be molded in a large amount.

It should be noted that the present invention can be applied to a modification or modification of the above embodiment without departing from the gist thereof. For example, in the above-described embodiment, the case where an ultraviolet curable resin is used as the active energy ray-curable resin has been described. However, the present invention is not limited thereto, and an X-ray curable resin or an infrared curable resin may be used. May be used.

Although the case where a replica lens is formed has been described, the present invention can be similarly applied to other types of optical elements as long as a resin layer is formed on the surface of a glass material. Further, the description has been made such that the resin material is supplied to both the glass member and the mold member. However, the present invention is not limited to this. The entire amount of the resin material is supplied to the glass member or one of the mold members. Is also good.

[0043]

As described above, according to the optical element molding apparatus of the present invention, the resin material can be supplied to the mold means without completely separating the mold means and the lid means. The time required for the step of supplying the resin material can be reliably reduced, and the productivity can be improved. Further, since it is not necessary to completely separate the mold means and the lid means, there is an effect that, when they are combined, no galling occurs and the life of the mold means and the lid means can be extended.

[Brief description of the drawings]

FIG. 1 is a view showing a structure of a mold used in a molding apparatus according to one embodiment.

FIG. 2 is a perspective view showing a shape of a lid in a mold.

FIG. 3 is a perspective view showing a configuration of a molding apparatus according to one embodiment.

FIG. 4 is a view of the molding apparatus as viewed from above.

FIG. 5 is a side view of the molding apparatus.

FIG. 6 is a view showing the structure of a lid opening / closing device.

FIG. 7 is a diagram showing a structure of a first robot.

FIG. 8 is a diagram showing a supply state of a resin material to a mold.

FIG. 9 is a view showing a supply state of a glass member to a mold.

FIG. 10 is a view showing a state where a glass member is placed on a support member.

FIG. 11 is a view showing a state in which a glass member is fixed in a mold.

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 mold 12 mold member 14 support member 16 lid 18 push-up pin 19 pin drive device 20 molding device 22 gantry 24 index table 26A to 26F ultraviolet irradiation device 28 first robot 30 second robot 32 third robot 34 hand 36 Liquid fixed amount supply device 40 Petri dish 42 Pallet supply device 44 Pallet 46 Control device 48 Operation panel

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-1-171933 (JP, A) JP-A-2-304505 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) B29C 39/10-39/12 B29C 39/22-39/24 B29D 11/00

Claims (2)

(57) [Claims] 1. A resin layer having a predetermined surface shape is formed on a surface of a glass member by molding.
In a method for forming an optical element for forming an optical element in which a glass material and a resin material are integrated, the glass member has a molding surface for molding the resin layer.
Held by holding means for supplying on a mold member
And supplying a first amount of the resin material onto the glass member.
Supplying a second amount of the resin material onto a molding surface of the mold member.
A second resin supply step of supplying, and a glass part to which the resin material is supplied by the holding means.
A material is placed on a resin material on the molding surface, and the glass member
The first amount of resin material supplied to the mold and supplied on the molding surface
Placing the combined resin material with a second amount of the resin material, and irradiating the combined resin material with active energy rays
And a curing step of curing the resin material . 2. A combination of the first amount and the second amount.
The thickness is determined based on the molding surface and the thickness of the resin layer from the molding surface.
A support portion projecting by a predetermined amount and supporting the glass member,
Larger than the volume of the space defined by the surface of the glass member
The optical system according to claim 1, wherein the optical system is set.
Element forming method.