TW454096B - Method of filling a mold for manufacturing an ophthalmic lens - Google Patents

Abstract

An apparatus and method for filling a mold for casting optical lens. Two molding shells and a closure member form a mold with a molding cavity. To fill the mold a fluid lens-forming material is introduced into the molding cavity through a casting opening formed in the closure member. Air is venting out during the filling process through a venting opening also formed in the closure member. Both the casting opening and the venting opening are located in the upper portion of the molding cavity but spaced apart from each other at an acute angle.

Description

d 5 4 Ο 9 6 V. Description of the invention (1) Background of the invention Field of the invention The present invention includes a device and method for making optical lens molds. 2. Description of the Related Art Nowadays, most lenses are made of molded plastic. 4 a & M is light in weight, low in density, low in refractive index, and because of its lens formation, it is often called in this field; strong. In the shape of a shell. Each of the mold shells has an inner surface: When the two molds of the rear mold and the rear mold are positioned, their inner surfaces are the molds with the cavity. After that, the two and two mold shells are jointly formed into the f #anti + mountain suspension to form the flow of the lens of the early body liquid. Generally, the mold cavity determined by the #t fasteners is locked. Through the casting port, the fluid material forming the lens is solidified into the hardened polymer lens with a nucleus and eighth shape. The fluid that is formed into a hibiscus I? There are two kinds of mold filling methods in the technology of molding lenses. The first one is the top filling method shown in FIG. 1 of the present invention. In FIG. The injection device is located at the top of the mold and is connected to a filling device (not shown) through which the lens-forming fluid material is fed into the mold cavity through a filling needle passing through the opening V. The opening V It also acts as an exhaust pipe during the manufacturing process. Inevitably, some air bubbles generated during the filling process and easily trapped in the opening and may form air plugs that slow down the filling process, ... at the top

WCHENLINVLikaUri 11079. ptd Page 5 4 54 09 6 V. Description of the invention (2) ------- 5 'is a well-known "slurry" effect of glass gas producers. That is to say, the shape f When the viscosity of the lens material is constant, the fluid slowly grabs into the branch cavity C and the air plug formed in the opening v during the filling will further damage the filling process. Due to the unevenness, the fluid forming the lens slowly flows into the cavity. The possibility of optical defects occurring in the formed sheet is increased. The first filling method is the "bottom" filling method shown in Fig. 2 of the present invention. In Fig. 2, the casting port 0 is separated from the exhaust port V by 180. . The mold M is placed in this way. The washing prayer port 0 is located at the bottom of the mold pair, and the fluid material forming the lens is introduced into the mold cavity C from the bottom through the casting port 0. To overcome gravity, a pumping device (not shown) can be used to allow the fluid material forming the lens to flow into the cavity C without applying too much pressure to it. Exhaust is performed through exhaust port V located at the top of cavity C. Because this filling method separates the exhaust port and the casting port, it eliminates the interference of bubbles on the flow of the fluid material forming the lens, so the "slurry" effect is greatly reduced. Therefore it can greatly shorten the filling process. However, the underfill introduces a possible new quality issue. As known to those skilled in the art, the central area of the lens formed is the most optically effective area. So any defect in this area will damage the quality of the lens formed by Po. Because bubbles will inevitably cause optical defects, it is best not to let bubbles pass through this optically effective area. However, as shown in FIG. 2, the bubble B has to pass through this optically effective region to reach the exhaust gas σ ν. In fact, the bubble B spans the entire cavity C ', which greatly increases the possibility of optical defects in the formed lens. Therefore, the underfill method will seriously damage the optical quality of the formed optical lens. '

4 54 09 6 V. Description of the invention (3) Summary of the invention Molding i ΐ: i overcomes the shortcomings of the prior art, and reveals a new type of " receiving, " puller filling method. In essence, the present invention invents a " side different injection method. An embodiment of the present invention includes a method for molding f-pieces, with a filling method, wherein the mold is formed by two mold shells arranged in the following direction: Xue Xianxian orientation, which has one setting. A ring-shaped locking member at the periphery of the mold is provided. The locking member and the two mold shells jointly determine a mold cavity. The mold cavity has a center and a vertical axis and a horizontal axis which are perpendicular to each other. Both axes pass through the center of the cavity. Therefore, the mold is divided into an upper part and a lower part. The upper part of the mold is provided with at least one port and at least one casting port separated by an angle. This angle is an acute angle, and both the exhaust port and the sound casting port communicate with the cavity. ^ In the practice of the present invention, the fluid material forming the lens enters the mold cavity through the casting port. The lens-forming fluid material is then cured, causing the shovel fluid material to harden to form an optical lens. Finally, remove the shape ^ and the cavity. Another 鲵 月 坆 Because the exhaust port and the wash casting port are separated from each other 'and have a special geometrical arrangement', the fluid material forming the lens is filled into the mold cavity Φ / 丨 wr ^ rfq is not disturbed by the exhaustion process. All trapped air bubbles are moved to the exhaust port by gravity and thus = out of the mold without passing through the optical lens formed. ^, ^ Τ 巧 双 la £ 'Moreover, gravity makes the filling of the fluid material forming the lens Much easier, m two ^ four instead of _ love to pump devices. In this way, the present invention avoids the "slurry" effect, changes the cover to form the quality of the lens, and facilitates the filling process. = According to another embodiment of the present invention, the molded photoacoustic 1μ 1 clothing 7 ^ the lens can pass

UCHENLIN \ Lika \ trill079.ptd Page 7 454 09 i

The 5H mold has a center set on the end face and a base set on the periphery and two upper mold shell cavities and two axes perpendicular to each other pass through the center, so the upper part of the mold is set to separate the exhaust port and each Each of the casting ports is connected to the mold cavity. After the material is introduced into at least one port of the casting port to make the fluid material forming the lens, the optical lens is taken from the mold cavity into a casting port. In addition to the tool of the present invention, the filling process can be further shortened and the production time can be further shortened. The middle lens can use a mold at the end surface and a substantially vertical orientation of the mold shell to jointly determine a vertical axis of the annular cavity of the mold cavity and a vertical axis so that the mold is divided into an upper part and a next communicating with the cavity exhaust vent. The upper part of the shape leaves a certain mold cavity of the exhaust port, and the stream material which solidifies to form the lens is hardened to form an optical lens. In this embodiment, the exhaust port is located at the lens cavity and the liquid material is injected into the cavity For a mold step to achieve, the two mold shells in the vertical orientation and a ring-shaped locking member that together determine the cavity, a vertical axis and a horizontal axis, the mold is divided into an upper part and a lower part . One exhaust port and multiple casting ports at. All constitute an acute angle. After the exhaust port and multiple lens-forming fluid materials pass through multiple mold cavities, the lens-forming fluid material is solidified to form an optical lens. Because this embodiment adopts the advantage of the embodiment having one more casting port, the steps are shortened. Therefore, the molded optical lens is formed in another embodiment of the present invention. "This mold has two housings." With the two locking parts, the mold cavity has a center, and the horizontal axis mutually passes through the center, and the part of the step of setting an optical lens on the upper part of the mold includes injecting the fluid material forming the lens at the mold position. The bulk material is the fluid material that forms the lens and removes the optical lens from the mold cavity. At the highest or uppermost point of the cavity, the shape (ν

\\ CH0 «LIN \ Lika \ trill〇79.ptd

4 5 4 09 G Fifth, the description of the invention (5) is lower than the exhaust port. In all embodiments, the form of the cushion. The latter can be used to pierce the mixture into the mold cavity. During the refilling process, for example, the same or different improvements may be used. This device is oriented with an opposing mold shell, cavity, and cavity having a central axis and a casting port for injection into the cavity of the mold. The exhaust port is provided at the axis to intersect the lock. And the other objective of the present invention is made clearer. It achieves the exhaust gas formed. The structure between the ports will pass through a gasket which is made of elastic material and then can be prefabricated. The exhaust port and the type are used for the mold at the end face and in the mold shell. A vertical axis and port are formed in this position. The ‘locking member may be’ a sleeve. The elastic sleeve may be worn, and the gas port and the washing port are formed by filling needles. 0 The embodiment shows a cavity with a pair of arrangement shells and locks, which are mutually perpendicular, communicate with each other and pass through an uppermost point of the cavity with the cavity, the advantages and the understanding of the scales. The form can also be made from materials. Due to the fluid of the lens, it is also possible to fill the size of the casting gate to make an optical lens package. Basically, a horizontal lens is formed between the fluid and the lens. The improvement of the fluid material is a vertical sharp angle. Reference is made to the detailed description of the invention herein. The invention is described in more detail in the following examples, which are provided for illustrative purposes only, as many modifications and variations will be apparent to those skilled in the art. As used in the specification and as described in the patent application, "" a may mean one or more than one, depending on the context in which it is used. Description will now be made with reference to the drawings, in which all

\\ CHENLIN \ Lika \ trill079.ptd Page 9 4 54 09 6 V. Description of the invention (6) The same numbers in the figures represent the same parts. ^ Referring to FIGS. 3-7, a first embodiment of the present invention includes an apparatus and a filling method for manufacturing a filling mold for an optical lens. The mold 丨 〇 is formed by the two mold shells provided with the f end surface, 12B and the ring-shaped locking member 14 provided around the mold shells 12A, 12B. Mold cavity. 1 6. In the first embodiment, the mold shells 12A, 12B are rotationally aligned with each other, and f is axially separated by a required distance (for example, two suitable distances for producing a lens with a desired thickness). When placed in place, the inner surfaces of the mold shells 12A, 12β are negative images of the desired opposing surfaces of the optical lens to be formed. In this embodiment, these two surfaces are coaxial and are denoted by a common axis A. From the cross section, they have H and Sergeant ~ 13. Therefore, if the mold shells 12A, 12b are provided on the end face, the P axis A is basically horizontal, and the mold shells 11A, nB are substantially vertical / 0 and as shown in Figures 4 to 7, the mold cavity 16 and further The mold 10 can be placed on the horizontal axis X of the center 13 through the center 13 and the q q i i τ straight grade & ^ + \. Sting 11A and lower part 11B. The mold 10 has a vertical straight axis γ, and the bean straight axis γ is perpendicular to the axis χ and passes through the center 13. It is easy to see that the mold shell ΐ2A ′ 12B has a round shape in general. Obviously, the shape can take other suitable shapes, such as oval, rectangular or square. The intersection of the stern axis and the upper part of 11 Α determines wedge 17. The highest or highest point of the beer supply chamber W is in the tenth embodiment shown in FIG. Form cavity 16 is formed. The cushion can be formed by 4¾ λχ 1 δ A 1 2 B edge ^; 丄 丄, citrus palladium α τ ,, e pill. The tape may be a bonded composite material or a heat-shrinkable material that will cause the formed cover to dry. to make

4 5 4 09 6 V. Description of the invention σ). However, the elastic material is better, so that the sleeve obtained during the curing process allows the mold shells 12A, 12B to slide along the axis A. In order to compensate for the shrinkage of the lens-forming material. In addition, the locking member 14 may be in the form of a washer (not shown). The locking member 14 has an exhaust port 18 and a casting port 20, and the exhaust port 18 communicates with the mold cavity 16 so that air can be discharged from the mold cavity 丨 6. In the illustrated embodiment, the 'exhaust port 18 is located at the upper portion 11A of the cavity 16, preferably near the uppermost point 17 of the cavity 16 or the uppermost point. The wash port 20 is also in communication with the mold cavity 丨 6, so that the fluid material forming the lens can be introduced into the mold cavity 16 through it. The casting port 20 is also located at the upper part 11Λ of the cavity 6 but separated from the exhaust port 18. As shown in Figs. 3-7, according to the present invention, the position of the exhaust port 18 is always higher than the position of the casting port 20, so that the air bubbles can be easily discharged to the outside through here. Also, as shown in Fig. 4, An included angle ^ is formed between the exhaust port 18 and / yao cast port 20, and the included angle α can be regarded as the included angle between the axis 1 ^ and the axis Lq. M is a radial axis connecting the center 13 and the center of the casting port 20, and LQ is a radial axis connecting the center} 3 and the center of the exhaust port 18. For the embodiment shown in Figs. 3-7, the axis coincides with axis γ, although it does not have to coincide with the axis. 〃, Xinming required angle α is an acute angle. This can guarantee that Β does not work during the filling process? Mirror, the most effective optical zone to reach the exhaust port 18. Indeed, as shown in Fig. 4, the air / bag is easy to reach the exhaust port 8 along the inner surface of the lock member 14. From: ΐ f Γ action ′ During the filling process, bubbles are indeed always poured on the surface of the body 学 of the first right spoon of the learner. Therefore, the present invention makes it possible to completely prevent the first most political area of the lens from being disturbed. In the present invention, although the angle α may be 0. A 9 0. Anything between

4 54 09 6 V. Description of the invention (8) Zero value, but the angle α range is 5 ° — 2 0 is located on the exhaust port on the left. Each wash port can be a round row. Air port 18 or exhaust port 18 can be cast port 2 0 in foot In addition, the same, wash port support one (not shown in the previous manufacturing or Filling the shape of the note can be used. The above is the number of lenses on the point 17 for the output). The injection needle (Figure 3-7. In the other embodiments, the lens is filled near the vertical during the filling process. The preferred fluid for forming the lens is in the range of 5-85. And the angle 5 is the best 50. It is obvious 'Although the right side of the shallow casting port 18 shown in Figs. 3 and 4', as shown in Fig. 5, the casting port 20 can also be a hole, as shown in Figs. 3-5. From the cross section, the washing and ellipse Or other suitable shapes. Similarly, in fact, it is a hole 'as shown in Figure 3-5. Viewed from a cross section, it is a circle, ellipse or other suitable shape. The exhaust port 8 and the size and shape can be The same can also be different ... As shown in Figure 7, 'exhaust port 18 can be combined with exhaust port 22 "20 can be combined with casting port 24. Exhaust port 22 can be used to generate suction so that air can be easily discharged The casting port 24 of the suction pump can be supported or placed for improving filling (not shown). In the embodiment shown, 'exhaust port 18 and casting port 20 can be pre-empted' in the case where the locking member 14 is made of an elastic material or other synthetic material. 'Exhaust port 18 and casting port 20 can also be filled. It was previously formed by piercing the locking element 4 with a filling needle. The fluid material is introduced into the cavity 16 through the gate 20. Filling station (not shown) is performed, here the mold is set as a base so that the exhaust port 18 is located at the uppermost point 17 of the mold cavity 16 or during the filling process, the filling needle (not out) Used to inject the fluid material into the mold cavity. Filler pins are attached to a library of shaped materials (not shown). If the pouring has been made in advance

UCHENLIN \ Lika \ trill079.ptd Page 12 454096 V. Description of the invention (9) Note 20, then the filling method is used to establish a fluid that communicates with the lens and forms the injection mold cavity of the lens by washing. There are optical lenses in the central area of the cavity 16 filling the part upwards. Why pierce the filling needle with the filling needle. It is best to have material injection gate 20 bit material injection and due to the heavy mold cavity 16 zone. The knotted defects can be inserted into the casting port 20, if not pre-manufactured, the assembly 14 produces a casting port 20, whichever way the fluid is filled between the library and the cavity through the casting port 20 in a continuous manner The required amount is formed into the cavity 16. At the upper part 11 a of the cavity 16, gravity can help the cavity 16. Therefore, it is not necessary to provide a pump mechanism to fill the force. The material forming the lens naturally reaches the exhaust port 18 from the bottom, but without passing through the mold, the most effective optical performance of the formed lens is greatly reduced. Therefore, it is possible to produce a better injection needle from the cavity 16 and the locking member 14 once an appropriate amount of the lens-forming fluid material is introduced into the mold cavity 6. The lens-forming fluid material is then cured and hardened. As will be understood by those skilled in the art, curing can be achieved in several ways. For example, ' the curing method of the present invention includes the time required to expose the lens forming fluid material to < UV " light. In addition, after the lens-forming fluid material is exposed to UV light, the lens-forming fluid material is heated in, for example, an infrared ("IR ") furnace for a predetermined time. If the lens-forming fluid material in the UV step is not sufficiently cured, Then the second heating step solidifies the lens forming fluid material to form a hard lens. Figure 6 shows a third embodiment of the present invention, in which the locking member i 4 has two pouring fronts 2 0 A, 2 0 B The casting port 2 A is separated from the exhaust port 18 by an angle α

4 5 4 09 6 V. Description of the invention (ίο) 1, and the casting port 20B and the exhaust port 18 are separated by an angle sound " ^ ^ = = can be different acute angles. However, preferably they have equal values. In other words, the side prayer openings 20A ′ 20B are preferably symmetrical to the exhaust opening 18. Row ^ 18 = At the highest point of mold cavity 16 or at the highest point 17 or at the highest point 丨 7, the mouth 20A, 20B allows the lens-forming fluid to be injected into the mold cavity 16 with two filling needles, so it is greatly shortened Filling process. Furthermore, we can have more than two wash casting ports, and the angular distance between the plurality of wash casting ports and the exhaust port may be the same or different. The gates can be symmetrically distributed to the exhaust ports. They can also be relative to the exhaust port = 1 called distribution #. Obviously, 'It is not necessary to fill the mold star with every casting port. The combination of Yingming's mold with multiple washing and casting ports and the existing automatic and dynamic technology can greatly reduce the production time of molded lenses. The fluid material of the film is preferably a monomer. A CR424 of the present invention [made by P.P, G of Pittsburgh, sold under the trade mark is known to a professional technician, and known to those skilled in the art, and the lens forming material can also be used in the invention. Can = As discussed, in the implementation of the present invention, the locking member M: heat: sleeve made of material 'This allows the filling needle to pierce through to establish a fluid channel communicating with the cavity 16. In these embodiments, the Ξ: 2 2 垫 pad material is a thermoplastic rubber, which contains KRATON 6 sold by Shell Oil Company of Yiyuan, Texas, which is a combination of tf: ethylene-propylene ( Butene) block copolymer. This type of rubber bag is sold under the trademarks DYNAFLEX⑴G 11 and 27 丨 2 by the GLS company in Cary City, California. The Shore A hardness range of these rubbers is

\\ CHENLIN \ Lika \ trii1079. Page 14 ^ 54096 5. Description of the invention (11)

About 4 3 — 6 2 with a specific gravity of about 0 Q and a range of about 355 — 47 0. The tensile modulus range at 300% elongation is about 113-m, this :; tensile strength is about 68 ° ~ 1 000 psi, tearing strength. However, Ben-I rubber has a smooth surface and a thickness of Fanyuan is expected. In fact, the required / clear jacket material is not limited to a single material-specific monomer compound change. Depending on the certain lens-forming material used to form the lens, it is preferred that a certain cushion material is matched with the lens-forming material. It has been found that the present invention can be achieved satisfactorily by using different cushion materials in combination with another amino acid vinyl acetate. The pager silicon elastomer and KRAWN do not mean that the invention is described in this section, but the scope is included below; the limitations of the invention, many modifications and changes that are restricted. According to the above disclosure, for example, it can be done already Reference uses a row

\\ CHENLIN \ Lika \ trill079.ptd The present invention has been described. However, it is possible to use _ to discharge the second gas out of the mold cavity. Of course, you can use the a 4 gas recorder and the exhaust port of this hair to do the casting. In addition, it is possible to separate the exhaust port and the lens-injected fluid into the mold cavity. A plurality of casting ports can be used to make the openings out of the mold cavity. For example, multiple vents can be used at the top of the upper section but separated from each other. Multiple exhaust vents are arranged in the mold / ^ 54 09 6 Case No. 89110425 J father jj. Amendment i Brief description of the drawing Figure 1 is a vertical sectional view of an existing mold filled from the top of the mold. Fig. 2 is a vertical sectional view of a conventional mold filled from the bottom of the mold. Fig. 3 is a perspective view of the mold of the first embodiment of the present invention with a part of the locking member cut away for clarity. FIG. 4 is a vertical sectional view of the mold of FIG. 3. Fig. 5 is a vertical sectional view of a mold according to a second embodiment of the present invention. Fig. 6 is a vertical sectional view of a mold according to a third embodiment of the present invention. Fig. 7 is a vertical sectional view of a mold according to a fourth embodiment of the present invention. Description of the drawing numbers of the main components A. Shaft B. Bubble C, 16. Mould M, 10 ·. Mould opening. Locking parts 14 0, 20, 20A, 20B 12A, 12B ... Mould shells 18, 22 ..exhaust vent

Unnamed page 16 2001.05.10.016

Claims (1)

4 5 4 09 6 VI. Scope of Patent Application 1. A method for molding an optical lens, the method includes the following steps: a. Provide a mold 'the mold has two mold shells disposed on the end surface and substantially 鳘, and one It is a ring-shaped locking piece arranged on the periphery of the mold shell and sharing the mold cavity with the mold cavity. The mold cavity has a center, a vertical axis and a horizontal axis that are perpendicular to each other. In the upper part and the lower part, the mold has an exhaust port and a casting port which are arranged on the upper part of the mold and separated by = angle, and the gate communicates with the cavity; but b. The lens is formed through the casting port. The fluid material is introduced into the mold cavity; #for curing the fluid material forming the lens, so that the fluid material forming the lens is hardened to form the lens; and Hod, take the optical lens out of the mold cavity. 2. The method according to item 丨 of the patent application scope, wherein the exhaust port is located at or near the uppermost point of the cavity. 3, such as the scope of patent application! The method of item, wherein the position of the casting port is lower than the position of the exhaust port in the mold cavity. 4. The method according to item 1 of the scope of patent application, wherein the included angle between the casting port and the discharge port is an acute angle. "5. The method according to item 1 of the scope of patent application, wherein the locking member is in the form of a sleeve provided on the periphery of the mold shell. 4 54096 6. Scope of patent application The method of the scope of patent application No. 1 'wherein the fluid material forming the lens is a monomer. 7. — β method for molding optical lens, the method includes the following steps: a. Provide a mold having two upper mold shells disposed on an end surface and substantially vertically oriented, and one provided on the periphery and with The two annular shells of the mold cavity define the cavity. The cavity has a center, which is perpendicular to each other. A vertical axis and a horizontal axis. Both upper axes pass through the center. The part of the mold also includes an exhaust port which is arranged on the mold and communicates with the cavity; the upper part of the mold is injected with the fluid forming the lens material into the mold cavity; c. Curing to form the lens Fluid material to harden the formed material to form the optical lens; and to grasp the lens body material d. Take the optical lens out of the cavity. The exhaust port is located in the mold in which the flow of the lens is formed. 8. The method according to item 7 of the patent application scope is the uppermost point of the cavity or near the uppermost point. 9. The method according to item 7 of the scope of patent application The bulk material is a monomer. The locking piece is set 10. The method according to item 7 of the scope of patent application, wherein UCHENLIN \ Lika \ trill〇79.ptd Page 18 4 54 09 0 ~: ~~~ The form of sleeves around the mold shell ^ 1 1. The method of item 10 in the patent scope, in which the sleeve material is formed of. 12. The method according to item 11 of the patent application scope, wherein the step of injecting the fluid material of the shaped sheet further includes the following steps: 'see a. Piercing the elastic sleeve with a filling needle; b. Fluid material is injected into the cavity. 13. A method of molding an optical lens, the method comprising the following steps: ^ a. Provide a mold having two mold shells disposed on an end surface and substantially in an Euclidean orientation and one disposed on a peripheral travel and two The mold shells are common & ring-shaped locks that determine the mold cavity. The mold cavity has a center and two axes that are perpendicular to each other. A horizontal axis and two axes all pass through the center, so the mold is divided into upper parts. And the lower part, the mold also has an exhaust port and a plurality of casting ports which are arranged on the upper part of the mold and are separated from each other. The exhaust port and each casting port form an angle. The exhaust port and the casting port are both Communicate with the mold cavity; b. Inject the fluid material forming the lens into the mold cavity through the casting port; c. Solidify the fluid material forming the lens and harden the fluid material forming the lens. To form an optical lens; and d. Remove the optical lens from the mold cavity. \\ CHENLIN \ Lika \ trill079.ptd page 19 Sixth, the scope of the patent application is located at the lower position of the application method of the special encirclement model ΓΛ, where each wash casting port is an acute angle. 16. As the scope of the patent application. Item d & ar Each angle is placed in the method of item 2 ^ 13, where the lock piece is the square of the 17th item in the patent scope, and the cushion made of a sleeve material is made of a spring. The methods in item 13 of the patent are basically the same. All casting ports 20. The method of item 3 in the scope of patent application, the exhaust ports are basically symmetrical. The first casting port is opposite to 21 kinds of devices for molding optical lenses, which includes a front mold and a rear mold; and b. A locking piece, which is in the same with the front and rear molds. \\ CHENLIN \ Lika \ trill079.ptd page 20 formed for α t) 4 b A cavity for a molded optical lens in which the closure has eight exhaust ports and at least one casting port. The knife should be at least 2 at an acute angle. 2. If the scope of the patent application is 21st, the uppermost point of the cavity of the mechanism where the mold is arranged vertically or near the uppermost point. 2 3. If the scope of the patent application is 21st. The device of this item further comprises a device for causing at least one exhaust port to be located in the module, wherein the lock piece is a piece of which the lock piece is a piece. The sleeve is an elastic material selected from the group consisting of organic crushed elastomers and 25. Polyurethane, polyethylene gas, KRATON (R) G as a set of materials such as the scope of application for the patent No. 24 . 26. An improvement on a molded optical lens device. This device has a pair of opposing mold shells disposed on the end face and substantially vertically oriented. The pair of mold shells and the locking member together form a cavity therebetween. The cavity has a center, which is vertical to each other. A vertical axis and a horizontal axis are provided. The device is connected to the cavity. A washing port which communicates with the cavity for introducing the lens forming fluid material into the cavity and a cavity The same exhaust port's improvements include that the exhaust port is set at the uppermost point of the mold cavity. At this point, the straight axis intersects with the ballast, and the exhaust port and the Yao port \\ CHENLIN \ Lika \ trill079, ptd 4 S 4 Θ9 © Six, the scope of patent application forms an acute angle. Page 22 \\ CH ^ LIN \ Lika \ trill079.ptd i ··