JP7260282B2 - Spectacle lens manufacturing device, spectacle lens manufacturing system, and spectacle lens manufacturing method - Google Patents

Description

The present invention relates to a spectacle lens manufacturing apparatus and a spectacle lens manufacturing method.

In the manufacturing process of spectacle lenses, a sheet member is attached as a protective film to one surface (for example, convex surface) of a lens member called a semi-finished lens, and the surface of the sheet member is attached to a block jig. In the fixed state, the other surface (for example, concave surface) of the lens member is polished (see, for example, Patent Document 1).

JP 2012-187703 A

When the sheet member is attached, air may enter between the sheet member and the lens member, and may remain as air bubbles after the attachment. If the air bubbles remain, they may adversely affect the subsequent polishing process and the like, and as a result, the manufacturing yield of spectacle lenses may decrease. In addition, removing the air bubbles after attaching the sheet member requires time and effort (process), which may lead to deterioration in manufacturing efficiency of spectacle lenses.

SUMMARY OF THE INVENTION An object of the present invention is to provide a technique that enables a sheet member to be attached to a lens member without air bubbles remaining due to entrapment of air.

The present invention has been devised to achieve the above objects.
A first aspect of the present invention is
A spectacle lens manufacturing apparatus for attaching a sheet member to one surface of a lens member,
An opening covered with the sheet member is provided on one side, and a lens support for supporting the lens member is provided on the other side so as to be movable toward the opening, and the sheet member and the lens cover the opening. a chamber forming a sealed space with the lens member supported by a support;
a decompression mechanism for decompressing the sealed space in the chamber;
a movement restriction mechanism that restricts movement of the lens support during decompression by the decompression mechanism;
It is an eyeglass lens manufacturing device comprising:

A second aspect of the present invention is
the lens support is configured to move by the negative pressure of the sealed space;
The spectacle lens manufacturing apparatus according to the first aspect, wherein the movement limiting mechanism is configured to brake the movement of the lens support.

A third aspect of the present invention is
A second aspect according to the second aspect, wherein the movement limiting mechanism is configured to release the brake applied to the lens support in a state where the sheet member covering the opening is bent by the negative pressure of the sealed space. It is an eyeglass lens manufacturing device.

A fourth aspect of the present invention is
any one of the first to third modes, comprising: an operation control unit that varies a mode of movement restriction by the movement restriction mechanism according to at least one of specifications of the lens member, specifications of the sheet member, and environmental conditions. It is the spectacle lens manufacturing apparatus described.

A fifth aspect of the present invention is
A spectacle lens manufacturing method including a step of attaching a sheet member to one surface of a lens member,
The sheet covering the opening by using a chamber in which one side has an opening covered with the sheet member and the other side has a lens support body for supporting the lens member movably disposed toward the opening. forming a sealed space between a member and the lens member supported by the lens support;
depressurizing the sealed space in the chamber and restricting movement of the lens support during depressurization;
After the sheet member covering the opening is bent by the negative pressure of the sealed space, the movement restriction of the lens support is released, and the one surface of the lens member supported by the lens support is placed in the bent state. contacting the sheet member;
A spectacle lens manufacturing method comprising:

According to the present invention, it is possible to stick the sheet member to the lens member without leaving air bubbles due to entrapment of air.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory diagram schematically showing a schematic configuration example of an eyeglass lens manufacturing system including an eyeglass lens manufacturing apparatus according to an embodiment of the present invention; BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory diagram schematically showing a schematic configuration example of an eyeglass lens manufacturing apparatus according to an embodiment of the present invention; BRIEF DESCRIPTION OF THE DRAWINGS It is explanatory drawing which shows typically an example of the characteristic procedure of the spectacle lens manufacturing method which concerns on one Embodiment of this invention.

<One embodiment>
An embodiment of the present invention will be described below with reference to the drawings.

(1) Configuration of Eyeglass Lens Manufacturing System First, the configuration of an eyeglass lens manufacturing system including the eyeglass lens manufacturing apparatus according to the present embodiment will be described.

The spectacle lens manufacturing system exemplified here is used to adhere a sheet member as a protective film to one surface (for example, convex surface) of a lens member called a semi-finished lens in the manufacturing process of spectacle lenses. .

FIG. 1 is an explanatory diagram schematically showing a schematic configuration example of an eyeglass lens manufacturing system.
As shown in FIG. 1 , the spectacle lens manufacturing system includes a peeling roller 21 , a backing paper member winding roller 22 , and a sheet member winding roller 23 .

A tape member formed by sticking a base paper member D to one side of a strip-shaped sheet member S is set on the peeling roller 21 in a wound state.
The sheet member S constituting the tape member is adhered to one surface of the lens member and functions as a protective film for protecting the one surface, and is formed of, for example, a sheet-shaped resin film. One side of the sheet member S is provided with an adhesive layer for adhering to the lens member.
The mount member D constituting the tape member is for protecting the adhesive layer of the sheet member S, and is formed so as to be peelable from the sheet member S as required.

The base paper member take-up roller 22 is for winding only the base paper member D in order to separate the base paper member D from the sheet member S on the outer circumference of the peeling roller 21 .

The sheet member take-up roller 23 is for taking up the sheet member S after the liner member D has been peeled off on the outer circumference of the peel roller 21 .
A pre-application conveying roller 31 and a post-application conveying roller 32 are arranged between the peeling roller 21 and the sheet member take-up roller 23 . The sheet member take-up roller 23 winds up the sheet member S guided by the pre-application conveying roller 31 and the post-application conveying roller 32 .

By winding the sheet member S with the sheet member take-up roller 23, the sheet member S is sent in one direction (eg, horizontal direction) between the pre-application conveying roller 31 and the post-application conveying roller 32. ing. A lens holder 10 is arranged on one side of the sheet member S (that is, the side on which the adhesive layer is provided) between the pre-pasting conveying roller 31 and the post-pasting conveying roller 32 to which the sheet member S is fed. It is
The lens holder 10 functions as a spectacle lens manufacturing apparatus according to this embodiment, as will be described later in detail. A single lens holder 10 may be arranged, or a plurality of (for example, two) lens holders 10 may be arranged side by side along the feeding direction of the sheet member S. In the case of a plurality, each lens holder 10 shall have the same configuration.

It is preferable to dispose the neutralization mechanism 33 upstream of the lens holder 10 in the feeding direction of the sheet member S. As shown in FIG. The static elimination mechanism 33 is for eliminating static electricity charged on the sheet member S due to the peeling of the mount member D. As shown in FIG. As the static elimination mechanism 33, for example, a static elimination brush that contacts the surface of the sheet member S or a static elimination non-woven fabric can be used. However, it is not limited to these, and for example, a voltage application type static eliminator (ionizer), which is a non-contact static elimination mechanism, may be used. Adhesion of foreign matter to the sheet member S due to electrification can be suppressed by such a static elimination mechanism 33 .

(2) Configuration of Spectacle Lens Manufacturing Apparatus Subsequently, the configuration of the spectacle lens manufacturing apparatus according to the present embodiment, more specifically, the configuration of the lens holder 10 functioning as the spectacle lens manufacturing apparatus will be specifically described.

FIG. 2 is an explanatory diagram schematically showing a schematic configuration example of the spectacle lens manufacturing apparatus (that is, the lens holder 10) according to this embodiment.

(overall structure)
The lens holder 10 adheres a sheet member S as a protective film to one surface (for example, convex surface) of a lens member L called a semi-finished lens. For this purpose, the lens holder 10 includes at least a chamber 11 , a pressure reducing mechanism 12 and a movement limiting mechanism 13 .

(chamber)
The chamber 11 has a cylindrical housing, and is configured to accommodate the lens member L in the housing. An opening 11a is provided on one side in the cylinder axis direction (upper side in the drawing). The opening 11a enables the lens member L to be taken in and out of the cylinder.

The chamber 11 is arranged with respect to the sheet member S such that the opening 11a faces the sheet member S, so that the opening 11a can be covered and sealed by the sheet member S. . That is, the chamber 11 has an opening 11a covered with the sheet member S on one side (upper side in the drawing).

Inside the cylinder of the chamber 11, a lens support 11b is arranged on the other side in the cylinder axis direction (opposite side of the opening 11a, lower side in the figure). The lens supporter 11b supports the lens member L, and is configured such that the surface in contact with the other surface (for example, concave surface) of the lens member L is fixed. Fixing of the lens surface may be performed using, for example, a vacuum suction mechanism (not shown), but the present invention is not limited to this, and other known fixing mechanisms may be used. A flange 11c may be provided in the cylinder of the chamber 11 for assisting the support of the lens member L by the lens support 11b.

Further, the lens support 11b is configured to be movable in the cylinder of the chamber 11 along the cylinder axis direction at least toward the opening 11a. More specifically, the lens support 11b is configured to move within the cylinder of the chamber 11 according to an external force acting on the lens support 11b without requiring a drive source. Therefore, if the cylinder axis direction is along the vertical direction (top and bottom direction), normally the lens support 11b is positioned on the lower side by the action of gravity. When a force acting thereon acts, the lens support 11b moves upward (that is, toward the opening 11a). A mechanism for movement is not particularly limited, and may be constructed using a known technique. However, it is assumed that the side of the cylinder on which the lens support 11b is arranged is hermetically sealed by, for example, employing an O-ring or a similar mechanism.

With such a configuration, when the opening 11a is covered with the sheet member S, there is a hermetically sealed gap between the sheet member S covering the opening 11a and the lens member L supported by the lens support 11b in the cylinder of the chamber 11. A space 11d is formed.

(Decompression mechanism)
The decompression mechanism 12 decompresses the sealed space 11 d in the chamber 11 . For this reason, the decompression mechanism 12 includes, for example, an exhaust pipe 12a communicating with the sealed space 11d and a vacuum pump 12b connected to the exhaust pipe 12a.

(movement restriction mechanism)
The movement restriction mechanism 13 restricts the movement of the lens support 11b inside the cylinder of the chamber 11. As shown in FIG. More specifically, the movement limiting mechanism 13 is configured to limit the movement of the lens support 11b by braking the movement thereof. Therefore, when the movement restriction mechanism 13 restricts movement, the lens support 11b does not move within the cylinder of the chamber 11 and remains fixed at the stop position even if some external force is applied.

In order to brake the movement of the lens supporter 11b, the movement restriction mechanism 13 includes, for example, an air brake 13a that moves a cylinder with air and brings a friction member into contact with the lens supporter 11b to brake the lens supporter 11b. and a brake controller 13b such as an electromagnetic valve for controlling the operation. However, it is not necessarily limited to those using air, and for example, those configured using other known techniques, such as those configured by a mechanism using a drive source that operates electromagnetically. You can use it.

(Operation control part)
An operation control unit 14 is connected to the vacuum pump 12b that constitutes the decompression mechanism 12 and the brake controller 13b that constitutes the movement restriction mechanism 13 . The operation control unit 14 instructs each of the vacuum pump 12b and the brake controller 13b to start operation (transition to a predetermined state) or stop operation (release of the predetermined state) according to a predetermined procedure. . That is, the operation control section 14 performs operation control for each of the vacuum pump 12b and the brake controller 13b according to a predetermined procedure.

As such an operation control unit 14, for example, a computer device having a calculation function, a storage function, etc. and executing a predetermined program may be used. However, it is not necessarily limited to this. For example, other known techniques such as a programmable controller that performs sequence control and an operation panel operated by an operator of a spectacle lens manufacturing system are combined. You may use what was comprised using it.

A predetermined program that defines the procedure when the operation control unit 14 performs operation control performs each step, which will be described in detail later, through the operation control of the vacuum pump 12b and the brake controller 13b. It corresponds to the control program to be executed by In that case, if the control program is installed so that the operation control unit 14 can read it, it is stored in a computer-readable recording medium (for example, a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc.). It may be provided by the Internet, or it may be provided from the outside through a network such as the Internet or a dedicated line.

(3) Procedures of Spectacle Lens Manufacturing Method Next, the processing operations in the spectacle lens manufacturing system including the lens holder 10 configured as described above, that is, the procedures of the spectacle lens manufacturing method according to the present embodiment will be specifically described.

FIG. 3 is an explanatory diagram schematically showing an example of characteristic steps of the spectacle lens manufacturing method according to the present embodiment.

(First step)
When the sheet member S is attached to one surface of the lens member L using the lens holder 10 configured as described above, first, as a first step, as shown in FIG. The lens member L is set in the cylinder of . At this time, the lens member L is set so that the adhered surface (for example, convex surface) of the lens member L can be seen from the opening 11 a of the chamber 11 . Then, the set lens member L is supported and fixed to the lens member L.

After setting the lens member L, for example, the chamber 11 itself is entirely moved toward the sheet member S side, so that the sheet member S covers and seals the opening 11a of the chamber 11 . Thereby, a sealed space 11d is formed between the sheet member S covering the opening 11a and the lens member L supported by the lens support 11b.

(Second step)
After forming the sealed space 11d, as a second step, the operation control unit 14 gives an operation instruction to the vacuum pump 12b that constitutes the decompression mechanism 12, so that the chamber 11 is closed. is decompressed in the sealed space 11d. As a result, the sealed space 11d becomes negative pressure, and the sheet member S covering the opening 11a is pushed by the atmospheric pressure and bent so as to protrude toward the sealed space 11d. At this time, if the planar shape of the opening 11a is circular, the sheet member S is convexly bent toward the sealed space 11d so that the vertex is positioned near the center of the circular shape.

However, during depressurization of the sealed space 11 d , the air brake 13 a of the movement limiting mechanism 13 is operated to limit the movement of the lens support 11 b in the chamber 11 . Specifically, the operation control unit 14 gives an operation instruction to the brake controller 13b constituting the movement restriction mechanism 13 so that the air brake 13a brakes the movement of the lens support 11b. As a result, the lens support 11b and the lens member L supported and fixed to the lens support 11b move upward (toward the opening 11a) even when the pressure in the sealed space 11d is negative. Without doing so, the lens member L remains in the set position.

(Third step)
Then, when a predetermined time (for example, 0.3 sec from the start of depressurization) has passed as a time sufficient for the sheet member S to bend, as a third step, as shown in FIG. 3(c), While maintaining the decompressed state by the decompression mechanism 12, the operation control unit 14 controls the air brake 13a to release the brake applied to the lens support 11b while the sheet member S is bent by the negative pressure in the sealed space 11d. , an operation instruction is given to the brake controller 13b. That is, after the sheet member S is bent by the negative pressure in the sealed space 11d, the movement restriction of the lens support 11b by the movement restriction mechanism 13 is released.

When the movement restriction is released, the lens support 11b and the lens member L supported and fixed by the lens support 11b are forced upward (toward the opening 11a) by the negative pressure in the sealed space 11d. ) to move. Then, one surface (adhering surface) of the lens member L supported by the lens support 11b and the bent sheet member S are brought into contact with each other.

At this time, the sheet member S is convexly bent toward the sealed space 11d so that the vertex is positioned near the center of the opening 11a. On the other hand, the lens member L has, for example, a convex surface as a surface to be adhered, and is supported and fixed to the lens support 11b so that the surface to be adhered faces the sheet member S. As shown in FIG. Therefore, the contact between the sheet member S and the lens member L starts from point contact near the respective vertexes, and spreads evenly from there toward the periphery.

(Fourth step)
After that, as a fourth step, as shown in FIG. 3D, sealing is performed by the decompression mechanism 12 until the contact between the sheet member S and the lens member L reaches the entire surface of the lens member L to be adhered. The decompressed state of the space 11d is continued. At this time, the contact between the sheet member S and the lens member L is performed in such a manner that the contact between the sheet member S and the lens member L spreads evenly from the point contact in the vicinity of the vertex. Intrusion of air is suppressed. Therefore, the sheet member S can be adhered to the lens member L without air bubbles remaining due to entrapment of air.

(Fifth step)
After the sheet member S is adhered to the lens member L, the pressure reduction state of the sealed space 11d by the pressure reduction mechanism 12 is released as the fifth step. Then, a cutter blade (not shown) provided in the spectacle lens manufacturing system is used to cut the periphery of the sheet member S attached to the lens member L. FIG. As a result, the lens member L and the sheet member S attached to the lens member L can be separated from the sheet member S that is sent to the sheet member take-up roller 23 and taken up. That is, the lens member L with the sheet member S adhered to one surface is obtained. Since air bubbles do not remain in the lens member L due to entrapment of air, a process (labor) for removing the air bubbles after the sheet member S is adhered is not required.

After removing the lens member L to which the sheet member S is adhered from the lens holder 10, the sheet member S is wound up by the sheet member take-up roller 23 to feed the sheet member S by a predetermined amount, and a new lens member L is attached to the lens. By setting it in the chamber 11 of the holder 10, it becomes possible to attach the sheet member S to the new lens member L according to the procedure described above.

(4) Effects of this embodiment According to this embodiment, one or more of the following effects can be obtained.

(a) In the present embodiment, by decompressing the sealed space 11d in the chamber 11, the sheet member S covering the opening 11a of the chamber 11 is bent toward the sealed space 11d, while the cylinder of the chamber 11 during decompression. limits the movement of the lens support 11b within. Therefore, the lens supporter 11b is not moved until the sheet member S is bent, and the movement restriction of the lens supporter 11b is released after the sheet member S is bent. It becomes possible to move the lens member L supported and fixed to the support 11b toward the sheet member S side. In this way, by differentiating the timing at which the sheet member S bends and the timing at which the lens support 11b moves, the contact between the sheet member S and the lens member L is evenly distributed from the point contact near each vertex to the periphery. It can be done in a spreading manner.
Therefore, according to this embodiment, when the sheet member S is adhered to the lens member L, entry of air between the sheet member S and the lens member L is suppressed. In other words, the sheet member S can be adhered to the lens member L without air bubbles remaining due to entrapment of air.
In this way, if it is possible to prevent air bubbles from remaining when the sheet member S is adhered, there will be no adverse effect on the subsequent polishing process, etc., resulting in a decrease in the production yield of spectacle lenses. It never causes a decline. In addition, since a process (labor) for removing air bubbles after the sheet member S is adhered is not required, the manufacturing efficiency of spectacle lenses is not deteriorated.

(b) In this embodiment, the lens support 11b is moved using the negative pressure in the sealed space 11d. Therefore, a drive source, a drive transmission mechanism, or the like for moving the lens support 11b is not required, so that complication of the configuration of the lens holder 10 can be suppressed.
Moreover, in this embodiment, the movement of the lens support 11b is restricted by applying a brake. Therefore, even if the lens supporter 11b moves due to the negative pressure in the sealed space 11d, the movement can be reliably restricted. Further, for example, if the lens holder 10 has a mechanism for applying a brake to the lens support 11b in order to cut the sheet member S using a cutter blade, that mechanism can be used as the movement limiting mechanism 13. , which is very suitable for suppressing the complication of the configuration of the lens holder 10 .

(c) In this embodiment, the brake applied to the lens support 11b is released while the sheet member S is bent. Therefore, the timing at which the sheet member S bends and the timing at which the lens support 11b moves can be reliably made different. Thus, if the respective timings can be reliably differentiated, the contact between the sheet member S and the lens member L can be reliably started from the point contact. It is very suitable for

(d) In the present embodiment, since the planar shape of the opening 11a is circular, when the sealed space 11d in the chamber 11 is decompressed, the sheet member S is positioned so that the apex of the sealed space 11d is positioned near the center of the circular shape. It bends convexly to the side. Therefore, when the sheet member S and the lens member L are brought into point contact with each other, the sheet member S can be bent into an ideal shape. become a thing.

<Other embodiments>
Next, another embodiment of the present invention will be described. However, differences from the above-described embodiment will be mainly described here.

Also in the embodiment described here, as in the case of the above-described embodiment, by differentiating the timing at which the sheet member S bends and the timing at which the lens support 11b moves, the sheet member S is adhered. to prevent air from entering.

However, the time required for the sheet member S to bend completely after the start of depressurization of the sealed space 11d may vary depending on the specifications of the sheet member S (thickness, material, surface finish state, type of adhesive layer, etc.). be. Furthermore, it may change depending on the environmental conditions (temperature, humidity, air pressure, etc.) when the sheet member S is attached. The same applies to the amount of protrusion toward the sealed space 11d after the sheet member S is bent.
Also, the specifications of the lens member L to which the sheet member S is adhered are not necessarily uniform, and there are those formed of materials with different refractive indices and those formed with different curves on the surface to be adhered. obtain. Therefore, depending on the type of lens member L, the distance to the sheet member S covering the opening 11a in the state set in the chamber 11 may change.
That is, depending on at least one of the specifications of the lens member L, the specifications of the sheet member S, and/or the environmental conditions, even if the movement of the lens support 11b is restricted as in the case of the above-described embodiment, it is not always possible to obtain a desired aspect. The sheet member S and the lens member L do not always come into contact with each other.

Therefore, in the embodiment described here, the operation control unit 14 controls the movement of the lens support 11b by the movement restriction mechanism 13 according to at least one of the specifications of the lens member L, the specification of the sheet member S, and the environmental conditions. The aspect of is made variable. More specifically, the operation control unit 14 varies the release timing of the movement restriction as a mode of movement restriction by the movement restriction mechanism 13 .

Specifically, the operation control unit 14 prepares and stores a control table in advance in the storage function of the operation control unit 14 or in an external storage device accessible by the operation control unit 14 . The control table is adapted to achieve contact between the sheet member S and the lens member L in a desired manner with at least one, preferably all, of the specifications of the lens member L, the specifications of the sheet member S, and the environmental conditions. defines, for example, in the form of a table the relationship with the timing for releasing the appropriate movement restriction. It is conceivable that such a control table is set in advance based on empirical rules obtained from experiments and the like, results of simulations, and the like.

Prior to attaching the sheet member S to the lens member L, information regarding at least one of the specifications of the lens member L, the specifications of the sheet member S, and the environmental conditions, preferably all of these, is sent prior to this. Input is made to the control unit 14 from an information input function in the operation control unit 14 or an information input device (not shown) connected to the operation control unit 14 . If the spectacle lens manufacturing system is provided with various sensors, the information about the environmental conditions may be obtained from the sensor detection results.

After obtaining the information in this manner, the operation control unit 14 extracts release timing information (for example, time information from the start of pressure reduction to release of the brake) corresponding to the obtained information while referring to the control table. In adhering the sheet member S to the lens member L, the operation control unit 14 varies the release timing of the movement restriction of the lens support 11b according to the extracted release timing information. Specifically, by releasing the brake at the timing specified by the release timing information, the timing at which the sheet member S bends and the timing at which the lens support 11b moves are made different.

That is, according to the embodiment described here, even if at least one of the specifications of the lens member L, the specifications of the sheet member S, or the environmental conditions changes, the sheet can be It becomes feasible to bring the member S and the lens member L into contact. Therefore, while eliminating the effects of the specifications of the lens member L, the specifications of the sheet member S, environmental conditions, etc., it is possible to reliably suppress the intrusion of air when the sheet member S is attached to the lens member L. It is very suitable for preventing air bubbles from remaining due to the entrapment of . Moreover, since the influence of specifications, conditions, etc. can be eliminated, versatility in using the spectacle lens manufacturing system can be improved, and convenience for users of the system can be greatly enhanced.

<Modifications, etc.>
While embodiments of the present invention have been specifically described above, the above disclosure is intended to illustrate exemplary embodiments of the present invention. That is, the technical scope of the present invention is not limited to the exemplary embodiments described above, and various modifications can be made without departing from the scope of the invention.

In each of the above-described embodiments, the air brake 13a is used to limit the movement of the lens support 11b, but the present invention is not limited to this. The movement of the lens support 11b may be limited by a movement limiting means such as a damping mechanism. Alternatively, the movement of the lens support 11b may be restricted by controlling the movement of the lens support 11b using another drive source such as a motor. In other words, the movement of the lens support 11b is not limited to using the negative pressure of the sealed space 11d, and may be moved using a drive source such as a motor. In that case, it is conceivable to control the movement and movement restriction of the lens support 11b using the same drive source. In other words, the restriction and release of the movement of the lens support 11b may be realized by means other than the brake that restricts the movement by the negative pressure. By differentiating the movement timing of the body 11b, it is possible to suppress the air bubbles from remaining due to the intrusion of air.

Further, in each of the above-described embodiments, the case where one surface of the lens member L to which the sheet member S is attached (surface to be attached) is convex has been exemplified, but the present invention is not limited to this. It is applicable even if the contact surface is not convex. For example, even if the surface to be adhered is a concave surface, if the curvature of the sheet member S in the bent state is larger than the curvature of the concave surface, the contact between the sheet member S and the lens member L is started from point contact. Therefore, it is possible to suppress the remaining air bubbles due to the intrusion of air.

<Preferred embodiment of the present invention>
Preferred embodiments of the present invention are additionally described below.

[Appendix 1]
According to one aspect of the invention,
A spectacle lens manufacturing apparatus for attaching a sheet member to one surface of a lens member,
An opening covered with the sheet member is provided on one side, and a lens support for supporting the lens member is provided on the other side so as to be movable toward the opening, and the sheet member and the lens cover the opening. a chamber forming a sealed space with the lens member supported by a support;
a decompression mechanism for decompressing the sealed space in the chamber;
a movement restriction mechanism that restricts movement of the lens support during decompression by the decompression mechanism;
An eyeglass lens manufacturing apparatus is provided.

[Appendix 2]
Preferably,
the lens support is configured to move by the negative pressure of the sealed space;
The spectacle lens manufacturing apparatus according to Appendix 1 is provided, wherein the movement limiting mechanism is configured to brake the movement of the lens support.

[Appendix 3]
Preferably,
The spectacle lens according to appendix 2, wherein the movement limiting mechanism is configured to release the brake applied to the lens support in a state where the sheet member covering the opening is bent by the negative pressure of the sealed space. A manufacturing apparatus is provided.

[Appendix 4]
Preferably,
3. The mode according to any one of Appendices 1 to 3, further comprising: an operation control unit that varies a mode of movement restriction by the movement restriction mechanism according to at least one of specifications of the lens member, specifications of the sheet member, and environmental conditions. is provided.

[Appendix 5]
Preferably,
The spectacle lens manufacturing apparatus according to Supplementary Note 4 is provided, wherein the operation control section varies timing of releasing the movement restriction as a mode of movement restriction by the movement restriction mechanism.

[Appendix 6]
According to another aspect of the invention,
A spectacle lens manufacturing method including a step of attaching a sheet member to one surface of a lens member,
The sheet covering the opening by using a chamber in which one side has an opening covered with the sheet member and the other side has a lens support body for supporting the lens member movably disposed toward the opening. forming a sealed space between a member and the lens member supported by the lens support;
depressurizing the sealed space in the chamber and restricting movement of the lens support during depressurization;
After the sheet member covering the opening is bent by the negative pressure of the sealed space, the movement restriction of the lens support is released, and the one surface of the lens member supported by the lens support is placed in the bent state. contacting the sheet member;
A method for manufacturing an eyeglass lens is provided.

[Appendix 7]
Preferably,
In the step of restricting the movement of the lens support, the mode of restricting the movement of the lens support is changed according to at least one of specifications of the lens member, specifications of the sheet member, and environmental conditions. is provided.

[Appendix 8]
Preferably,
There is provided the spectacle lens manufacturing method according to appendix 7, wherein, as a mode of movement restriction by the movement restriction mechanism, release timing of the movement restriction is varied.

[Appendix 9]
According to yet another aspect of the present invention,
The sheet covering the opening by using a chamber in which one side has an opening covered with the sheet member and the other side has a lens support body for supporting the lens member movably disposed toward the opening. forming a sealed space between a member and the lens member supported by the lens support;
depressurizing the sealed space in the chamber and restricting movement of the lens support during depressurization;
After the sheet member covering the opening is bent by the negative pressure of the sealed space, the movement restriction of the lens support is released, and the one surface of the lens member supported by the lens support is placed in the bent state. a step of bringing the sheet member into contact with the sheet member and attaching the sheet member to one surface of the lens member;
is provided to the spectacle lens manufacturing apparatus via a computer.

[Appendix 10]
Preferably,
In the step of restricting the movement of the lens support, the mode of restricting the movement of the lens support is changed according to at least one of specifications of the lens member, specifications of the sheet member, and environmental conditions. is provided.

[Appendix 11]
Preferably,
As a form of movement restriction by the movement restriction mechanism, there is provided the control program according to attachment 10, which varies the release timing of the movement restriction.

DESCRIPTION OF SYMBOLS 10... Lens holder (eyeglass lens manufacturing apparatus), 11... Chamber, 11a... Opening, 11b... Lens support, 11d... Sealed space, 12... Decompression mechanism, 12a... Exhaust pipe, 12b... Vacuum pump, 13... Movement restriction mechanism , 13a Air brake 13b Brake controller 14 Operation control unit 21 Peeling roller 22 Base paper member winding roller 23 Sheet member winding roller 31 Pre-pasting conveying roller 32 Post-pasting conveying Roller 33 Eliminating mechanism L Lens member S Sheet member D Backing paper member

Claims (5)

A spectacle lens manufacturing apparatus for attaching a sheet member to one surface of a lens member,
An opening covered with the sheet member is provided on one side, and a lens support for supporting the lens member is provided on the other side so as to be movable toward the opening, and the sheet member and the lens cover the opening. a chamber forming a sealed space with the lens member supported by a support;
a decompression mechanism for decompressing the sealed space in the chamber;
a movement restriction mechanism that restricts movement of the lens support during decompression by the decompression mechanism;
with
The lens support is arranged to be movable according to an external force without having a drive source, and is configured to be moved by the negative pressure of the sealed space,
The movement limiting mechanism brakes the movement of the lens support and releases the brake applied to the lens support while the sheet member covering the opening is bent by the negative pressure of the sealed space. A spectacle lens manufacturing device configured as follows . 2. The spectacle lens manufacturing apparatus according to claim 1, further comprising: an operation control unit that varies a mode of movement restriction by the movement restriction mechanism according to at least one of specifications of the lens member, specifications of the sheet member, and environmental conditions. A spectacle lens manufacturing apparatus according to claim 1 or claim 2;
a conveying roller for sending the strip-shaped sheet member to the spectacle lens manufacturing apparatus,
The spectacle lens manufacturing system, wherein the conveying roller guides the sheet member so that the sheet member is arranged toward the opening of the chamber of the spectacle lens manufacturing apparatus. 4. The spectacle lens manufacturing apparatus according to claim 3, wherein the spectacle lens manufacturing apparatus is configured to move the chamber toward the side of the sheet member arranged toward the opening to form the sealed space. system. A spectacle lens manufacturing method including a step of attaching a sheet member to one surface of a lens member,
A lens support having an opening covered with the sheet member on one side and supporting the lens member on the other side is arranged movably toward the opening, and the lens support has a driving source. forming a sealed space between the sheet member covering the opening and the lens member supported by the lens support, using a chamber arranged to be movable according to an external force ;
depressurizing the sealed space in the chamber and restricting movement of the lens support due to the negative pressure during depressurization;
After the sheet member covering the opening is bent by the negative pressure of the sealed space, the movement restriction of the lens support is released, and the one surface of the lens member supported by the lens support is placed in the bent state. contacting the sheet member;
A spectacle lens manufacturing method comprising:

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