CN104669475A - Mold for forming lens, lens and method for manufacturing lens - Google Patents
Mold for forming lens, lens and method for manufacturing lens Download PDFInfo
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- CN104669475A CN104669475A CN201410044429.0A CN201410044429A CN104669475A CN 104669475 A CN104669475 A CN 104669475A CN 201410044429 A CN201410044429 A CN 201410044429A CN 104669475 A CN104669475 A CN 104669475A
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- mould
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 239000000463 material Substances 0.000 claims description 50
- 230000003287 optical effect Effects 0.000 claims description 29
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000011347 resin Substances 0.000 description 9
- 229920005989 resin Polymers 0.000 description 9
- 238000007493 shaping process Methods 0.000 description 7
- 239000011521 glass Substances 0.000 description 4
- 239000000945 filler Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Abstract
The invention provides a mold for forming a lens, a lens and a method for manufacturing the lens. The mold for forming the lens comprises a mold cavity, an exhaust cavity, a first exhaust channel and at least a second exhaust channel. The exhaust cavity is positioned at the periphery of the mold cavity. The first exhaust channel is communicated with the exhaust cavity and the mold cavity and has a first depth. The second exhaust channel is communicated with the exhaust cavity and the mold cavity and has a second depth. The first depth is different from the second depth. Furthermore, a lens and a method for manufacturing the lens are also provided.
Description
Technical field
The invention relates to a kind of manufacture method of mould, lens and lens in order to form lens.
Background technology
In recent years, along with electronic product is towards light, thin, short, little trend development, the lens length be configured on electronic product (as having the mobile phone of camera function) also reduces thereupon, so lens also have relatively thin thickness on it.But thin lens, when shaping, easily produces shaping bad problem.
In detail, the die cavity structure making lens generally includes optical effect district and the non-optical active region around of central authorities.After die cavity injected by the fluid resin material in order to make lens, can with stable waveform running around die cavity, but due to around die cavity and die cavity central authorities there is offset, resin material can produce resistance when injecting die cavity central authorities, therefore resin material also can seek limit flowing along peripheral direction, and the resin material speed flow to around die cavity comparatively flow to die cavity central authorities soon.So, once resin material is saturation state around die cavity, and under the situation of mould exhaust not yet in effect, lens interior will be covered by with the air in resin injection die cavity, form the bag wind phenomenon be commonly called as.If this bag wind phenomenon is formed in optics of lens active region, light transmittance and the refractive index of lens just can be affected.
For head it off, existing way arranges an exhaust passage communicated with die cavity at the die surface of die cavity, but the degree of depth of this exhaust passage is not easily affectedly bashful.If the degree of depth of exhaust passage is too shallow, air then in die cavity cannot flow out, if but the degree of depth of exhaust passage is too dark, the resin material in die cavity then can overflow in exhaust passage, and produces the part (burr be namely commonly called as) of flash in rims of the lens after lens are shaping.If burr are comparatively outstanding relative to other edge parts of lens, then, when lens can be caused to assemble, easily depart from optical axis position, and then affect image quality.
Summary of the invention
The invention provides a kind of mould in order to form lens, it can provide optical quality good, and is easy to the lens that carry out assembling, and can simplify the processing procedure of lens.
The invention provides a kind of lens, it is easy to assemble, and has lower cost.
The invention provides a kind of manufacture method of lens, it can provide optical quality good, and is easy to the lens that carry out assembling, and has the processing procedure comparatively simplified.
One embodiment of the invention comprise die cavity, discharge chamber, the first exhaust passage and at least one second exhaust passage with the mould forming lens.Discharge chamber is positioned at die cavity periphery.First exhaust channel connection discharge chamber and die cavity, and there is first degree of depth.Second exhaust channel connection discharge chamber and die cavity, and there is second degree of depth.First degree of depth is different from second degree of depth.
The lens of one embodiment of the invention comprise the first optical surface, the second optical surface and edge.Second optical surface is relative with the first optical surface.Edge conjunction first optical surface and the second optical surface, and edge comprises flash portion and at least one arc sections.At least one arc sections is connected with flash portion, and wherein flash portion is less than the distance of arc sections to lens center to the distance of lens center.
The manufacture method of the lens of one embodiment of the invention, comprises the following steps.There is provided mould, to form die cavity, wherein die cavity is vented channel connection to the discharge chamber being positioned at die cavity periphery via the first exhaust passage and at least one second.First exhaust passage and the second exhaust passage have first degree of depth and second degree of depth respectively, and first degree of depth is different from second degree of depth.Fill in material in die cavity, and make the gas in die cavity be expelled to discharge chamber via the first exhaust passage and the second exhaust passage.Material cooled is solidified, to form lens in die cavity.
In one embodiment of this invention, above-mentioned mould has and escapes gas cross section and at least one circular arc inner surface, to define die cavity.First exhaust passage is communicated with die cavity via escaping gas cross section, and the distance escaping gas cross section to die cavity central authorities is less than the distance of circular arc inner surface to die cavity central authorities.
In one embodiment of this invention, above-mentioned mould also comprises material hole, be communicated with die cavity, and material hole and the first exhaust passage be arranged at respectively die cavity opposite side.
In one embodiment of this invention, above-mentioned material hole and the connectivity part of die cavity are less than the distance of circular arc inner surface to die cavity central authorities to the distance of die cavity central authorities.
In one embodiment of this invention, the above-mentioned sectional area escaping gas cross section is same as in fact the sectional area of material hole and die cavity joint.
In one embodiment of this invention, the first above-mentioned degree of depth is greater than second degree of depth.
In one embodiment of this invention, the scope of the first above-mentioned degree of depth drops between 0.015 millimeter to 0.025 millimeter, and the scope of second degree of depth drops between 0.005 millimeter to 0.007 millimeter.
In one embodiment of this invention, the first above-mentioned exhaust passage and the second exhaust passage are along surrounding's arrangement of die cavity, and the first exhaust passage and the second exhaust passage communicate with each other.
In one embodiment of this invention, above-mentioned mould comprises the first mould and the second mould.Die cavity, discharge chamber, the first exhaust passage and at least one second exhaust passage is formed between first mould and the second mould.First degree of depth be the first mould and the second mould in the spacing at the first exhaust passage place, and second degree of depth is that the first mould and the second mould are in the spacing at the second exhaust passage place.
In one embodiment of this invention, above-mentioned lens also comprise protuberance.Protuberance is positioned at the opposite side in flash portion, and is connected with arc sections, and wherein protuberance is less than the distance of arc sections to lens center to the distance of lens center, and flash portion is different from the shape of protuberance.
In one embodiment of this invention, wherein when being filled in die cavity by material, above-mentioned material can not be spilled over to the second exhaust passage, and material is spilled over to the first exhaust passage slightly.
In one embodiment of this invention, the part being slightly spilled over to the first exhaust passage of above-mentioned material is not removed.
In one embodiment of this invention, above-mentioned mould comprises the first mould and the second mould, and formed the method for die cavity comprise by the first mould and the second mould superimposed, to form die cavity.Mould simultaneously form discharge chamber, the first exhaust passage and at least one second exhaust passage, wherein first degree of depth be the first mould and the second mould in the spacing at the first exhaust passage place, and second degree of depth is that the first mould and the second mould are in the spacing at the second exhaust passage place.
Based on above-mentioned, the mould of embodiments of the invention and the manufacture method of lens have the first different degree of depth and the design of second degree of depth respectively by the first exhaust passage and the second exhaust passage, effectively can reduce the area that discharge chamber communicates with die cavity, and the air in die cavity still can be made to be easy to circulation, to avoid the generation of bag wind phenomenon, and then it is good and be easy to the lens that carry out assembling to form optical quality.On the other hand, because mould reduces the part that discharge chamber communicates with die cavity, therefore also the material that can effectively reduce in die cavity can overflow to the risk in discharge chamber, so can reducing glass shaping after the flash portion scope that produces in rims of the lens.So, the flash portion of the lens of embodiments of the invention will not need to be removed, and then contribute to manufacturing process and the cost of saving lens, and the unlikely subsequent group process of assembling affecting lens.
For above-mentioned feature and advantage of the present invention can be become apparent, special embodiment below, and coordinate accompanying drawing to be described in detail below.
Accompanying drawing explanation
Fig. 1 is the schematic side view of a kind of mould in order to form lens of one embodiment of the invention;
Fig. 2 A is the top view of the die cavity of Fig. 1;
Fig. 2 B is the cross-sectional schematic of the die cavity A-A along the line of Fig. 2 A;
Fig. 2 C is the cross-sectional schematic of the die cavity B-B along the line of Fig. 2 A;
Fig. 3 is the flow chart of the manufacture method of a kind of lens of one embodiment of the invention;
Fig. 4 A is the front elevational schematic of the lens of one embodiment of the invention;
Fig. 4 B is the schematic side view of the lens of Fig. 4 A;
Fig. 4 C is the cross-sectional schematic of the lens of Fig. 4 A;
Fig. 5 is that the another kind of one embodiment of the invention is in order to form the front elevational schematic of the die cavity of the mould of lens.
Description of reference numerals:
100,500: mould;
110: die cavity;
120: discharge chamber;
130: the first exhaust passages;
140,540: the second exhaust passages;
150: material hole;
400: lens;
410: the first optical surfaces;
420: the second optical surfaces;
430: edge;
431: flash portion;
432: arc sections;
433: protuberance;
MD1: the first mould;
MD2: the second mould;
SE: escape gas cross section;
SC: circular arc inner surface;
D, d1, d2: the degree of depth;
L1, L2, L3, W1, W2, W3: distance;
C110, C400: central authorities;
A-A, B-B: hatching line;
S110, S120, S130: step.
Detailed description of the invention
Fig. 1 is the schematic side view of a kind of mould in order to form lens of one embodiment of the invention.Fig. 2 A is the top view of the die cavity of Fig. 1.Please refer to Fig. 1 to Fig. 2 A, the present embodiment comprise die cavity 110, discharge chamber 120, first exhaust passage 130, at least one second exhaust passage 140 and material hole 150 in order to the mould 100 forming lens.For example, as shown in Figure 1, in the present embodiment, mould 100 comprises the first mould MD1 and the second mould MD2, and can form die cavity 110, discharge chamber 120, first exhaust passage 130 and at least one second exhaust passage 140 between the first mould MD1 and the second mould MD2.
Furthermore, as shown in Figure 2 A, mould 100 has and escapes gas section S E and at least one circular arc inner surface SC, to define die cavity 110.On the other hand, in the present embodiment, material hole 150 is communicated with die cavity 110, and with the first exhaust passage 130 be arranged at respectively die cavity 110 opposite side.More specifically, the first exhaust passage 130 is communicated with die cavity 110 via escaping gas section S E, and the sectional area wherein escaping gas section S E is same as in fact the sectional area of material hole 150 and die cavity 110 joint.In addition, first exhaust passage 130 and the second exhaust passage 140 are along surrounding's arrangement of die cavity 110, it is peripheral that discharge chamber 120 is positioned at die cavity 110, first exhaust passage 130 and the second exhaust passage 140 are all communicated with discharge chamber 120 and die cavity 110, and the first exhaust passage 130 and the second exhaust passage 140 also communicate with each other.Below will arrange in pairs or groups Fig. 2 B to Fig. 2 C, and the structural design for the first exhaust passage 130 and the second exhaust passage 140 explains orally further.
Fig. 2 B is the cross-sectional schematic of the die cavity A-A along the line of Fig. 2 A.Fig. 2 C is the cross-sectional schematic of the die cavity B-B along the line of Fig. 2 A.Please refer to Fig. 2 B and Fig. 2 C, discharge chamber 120 has degree of depth D, and the first exhaust passage 130 and the second exhaust passage 140 have the first degree of depth d1 and the second degree of depth d2 respectively, and the first degree of depth d1 is different from the second degree of depth d2.More specifically, referring to Fig. 1, Fig. 2 B and Fig. 2 C, degree of depth D is that the first mould MD1 and the second mould MD2 is in the spacing at discharge chamber 120 place, first degree of depth d1 be the first mould MD1 and the second mould MD2 in the spacing at the first exhaust passage 130 place, and the second degree of depth d2 is that the first mould MD1 and the second mould MD2 is in the spacing at the second exhaust passage 140 place.More specifically, in the present embodiment, the first degree of depth d1 is greater than the second degree of depth d2, and the first degree of depth d1 and the second degree of depth d2 is all less than degree of depth D.For example, the scope of degree of depth D drops between 0.1 millimeter to 0.2 millimeter, and the scope of the first degree of depth d1 drops between 0.015 millimeter to 0.025 millimeter, and the scope of the second degree of depth d2 drops between 0.005 millimeter to 0.007 millimeter, but the present invention is not as limit.In addition, it should be noted, above-mentioned number range only illustratively illustrates, it is also not used to limit the present invention.
Thus, mould 100 has the first different degree of depth d1 and the structural design of the second degree of depth d2 respectively by the first exhaust passage 130 and the second exhaust passage 140, effectively can reduce the area that discharge chamber 120 communicates with die cavity 110, and the air in die cavity 110 still can be made to be easy to circulation, to avoid the generation of bag wind phenomenon, and then the good lens of optical quality can be formed.In addition, because mould 100 reduces the part that discharge chamber 120 communicates with die cavity 110, therefore also the material that can effectively reduce in die cavity 110 can overflow to the risk in discharge chamber 120, so can reducing glass shaping after the flash portion scope that produces in rims of the lens.
In addition, please referring again to Fig. 2 A, in the present embodiment, the distance L1 escaping gas section S E to die cavity central authorities C110 is less than the distance L2 of circular arc inner surface SC to die cavity central authorities C110, and the connectivity part of material hole 150 and die cavity 110 is less than the distance L2 of circular arc inner surface SC to die cavity central authorities C110 to the distance L3 of die cavity central authorities C110.So, when passing through material hole 150 filler to die cavity 110, the protuberance restriction that flash portion and material hole 150 can be formed within a certain range, and then avoids the follow-up assembling processing procedure affecting molded lens.
Fig. 3 is the flow chart of the manufacture method of a kind of lens of one embodiment of the invention.Please refer to Fig. 3, in the present embodiment, the manufacture method of lens such as can utilize the mould 100 of Fig. 1 to perform, but the present invention is not as limit.The manufacture method of the lens of the present embodiment comprises the following steps.First, perform step S110, provide mould 100, to form die cavity 110.For example, please refer to Fig. 1, the method of the formation die cavity 110 of the present embodiment comprises superimposed for the first mould MD1 of mould 100 and the second mould MD2, to form die cavity 110, wherein die cavity 110 is communicated to via the first exhaust passage 130 and the second exhaust passage 140 discharge chamber 120 being positioned at die cavity 110 periphery.On the other hand, as shown in Figure 1, Figure 2 shown in B and Fig. 2 C, discharge chamber 120 has degree of depth D, and the first exhaust passage 130 and the second exhaust passage 140 have the first degree of depth d1 and the second degree of depth d2 respectively, and the first degree of depth d1 is different from the second degree of depth d2.More specifically, the first degree of depth d1 is greater than the second degree of depth d2, and the first degree of depth d1 and the second degree of depth d2 is all less than degree of depth D.
Then, perform step S120, fill in material in die cavity 110, and make the gas in die cavity 110 be expelled to discharge chamber 120 via the first exhaust passage 130 and the second exhaust passage 140.In the present embodiment, the material of this material is such as resin material, but the present invention is not as limit.More specifically, in the present embodiment, mould 100 has the first different degree of depth d1 and the design of the second degree of depth d2 respectively by the first exhaust passage 130 and the second exhaust passage 140, when effectively reducing the area that discharge chamber 120 communicates with die cavity 110, the air in die cavity 110 still can be made to be easy to circulation, to avoid the generation of bag wind phenomenon, and then the good lens of optical quality can be formed.For example, when material is filled in die cavity 110, by vacuumizing or entered by perfusion resin the gas pressure of die cavity 110 itself to die cavity 110, the air in die cavity 110 is made to export in discharge chamber 120 by the first exhaust passage 130 and the second exhaust passage 140, with make the space in die cavity 110 can completely fill in by material, and make material can not be spilled over to the second exhaust passage 140.In addition, in the present embodiment, material is spilled over to the first exhaust passage 130 slightly, and forms flash portion 431(and be illustrated in Fig. 4 A).
Afterwards, then perform step S130, material cooled is solidified, to form lens in die cavity 110.In the present embodiment, because mould 100 reduces the part that discharge chamber 120 communicates with die cavity 110, therefore also the material that can effectively reduce in die cavity 110 can overflow to the risk in discharge chamber 120, so can reducing glass shaping after in rims of the lens produce flash portion 431 scope.So, when passing through material hole 150 filler to die cavity 110, the protuberance restriction that flash portion 431 and material hole 150 can be formed within a certain range, the part being slightly spilled over to the first exhaust passage 130 of material can not need to be removed, contribute to the manufacturing process saving molded lens, and therefore can reduce manufacturing cost, and the unlikely subsequent group process of assembling affecting molded lens.
Fig. 4 A is the front elevational schematic of the lens of one embodiment of the invention.Fig. 4 B is the schematic side view of the lens of Fig. 4 A.Fig. 4 C is the cross-sectional schematic of the lens of Fig. 4 A.Please refer to Fig. 4 A to Fig. 4 C, in the present embodiment, lens 400 such as can utilize the mould 100 of Fig. 1 to be formed with the mould 100 of Fig. 3, but the present invention is not as limit.In the present embodiment, lens 400 comprise the first optical surface 410, second optical surface 420 and edge 430.Second optical surface 420 is relative with the first optical surface 410, and 430, edge connects the first optical surface 410 and the second optical surface 420, and edge 430 comprises flash portion 431, at least one arc sections 432 and protuberance 433.At least one arc sections 432 is connected with flash portion 431, and wherein the distance W1 of flash portion 431 to lens center C400 is less than the distance W2 of arc sections 432 to lens center C400.Protuberance 433 is positioned at the opposite side in flash portion 431, and is connected with arc sections 432, and wherein the distance W3 of protuberance 433 to lens center C400 is less than the distance W2 of arc sections 432 to lens center C400.
So, because flash portion 431 and protuberance 433 are all limited within a certain range, therefore do not need to be removed, and then contribute to the manufacturing process and the manufacturing cost that reduce lens 400, and the unlikely subsequent group process of assembling affecting lens 400, lens 400 still can be made to be easy to carry out being assembled in camera lens, and not cause optical axis deviation.In addition, in the present embodiment, as shown in Figure 4 A, flash portion 431 is the edge 430 of arc convex, and different from the shape of protuberance 433.In other words, lens 400, in asymmetrical shape, so contributing to making lens 400 be easy to identification assembling direction in carrying out assembling, and avoiding erroneous judgement situation when assembling to produce.
In addition, though the first exhaust passage 130 of foregoing mould 100 and the second exhaust passage 140 are to communicate with each other as illustrating, the present invention is not as limit.Below will arrange in pairs or groups Fig. 5, be further illustrated for the first exhaust passage 130 and may changing of the second exhaust passage 140.
Fig. 5 is that the another kind of one embodiment of the invention is in order to form the front elevational schematic of the die cavity of the mould of lens.Please refer to Fig. 5, the mould 500 of the present embodiment is similar with the mould 100 of Fig. 2 A, and difference is as described below.In the present embodiment, mould 500 has multiple second exhaust passage 540, and the first exhaust passage 130 of mould 500 and the second exhaust passage 540 are configured to separate each other.In the present embodiment, because mould 500 also has the first different degree of depth d1 and the structural design of the second degree of depth d2 respectively by the first exhaust passage 130 and the second exhaust passage 540, effectively reduce the area that discharge chamber 120 communicates with die cavity 110, and the air in die cavity 110 still can be made to be easy to circulation, to avoid the generation of bag wind phenomenon, and effectively the material reduced in die cavity 110 can overflow to the risk in discharge chamber 120.Therefore, mould 500 has the advantage mentioned by mould 100 equally, just repeats no more at this.In addition, mould 500 also can in order to perform the manufacture method of the lens shown in Fig. 3, and in order to the lens 400 shown in shop drawings 4A, and all there is the advantage mentioned by previous embodiment, also repeat no more at this.
In sum, the mould of embodiments of the invention and the manufacture method of lens have the first different degree of depth and the design of second degree of depth respectively by the first exhaust passage and the second exhaust passage, effectively can reduce the area that discharge chamber communicates with die cavity, and the air in die cavity still can be made to be easy to circulation, to avoid the generation of bag wind phenomenon, and then the good lens of optical quality can be formed.On the other hand, because mould reduces the part that discharge chamber communicates with die cavity, therefore also the material that can effectively reduce in die cavity can overflow to the risk in discharge chamber, so can reducing glass shaping after the flash portion scope that produces in rims of the lens.So, the flash portion of the lens of embodiments of the invention will not need to be removed, and then contribute to manufacturing process and the cost of saving lens, and the unlikely subsequent group process of assembling affecting lens.In addition, the flash portion of lens is different from the shape of protuberance, so will contribute to making lens be easy to identification assembling direction in carrying out assembling, avoids erroneous judgement situation when assembling to produce.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (16)
1. in order to form a mould for lens, it is characterized in that, comprising:
Die cavity;
Discharge chamber, is positioned at this die cavity peripheral;
First exhaust passage, is communicated with this discharge chamber and this die cavity, and has first degree of depth; And
At least one second exhaust passage, is communicated with this discharge chamber and this die cavity, and has second degree of depth, and this first degree of depth is different from this second degree of depth.
2. the mould in order to form lens according to claim 1, it is characterized in that, have and escape gas cross section and at least one circular arc inner surface, to define this die cavity, this first exhaust passage is escaped gas cross section be communicated with this die cavity via this, and this distance escaping gas cross section to these die cavity central authorities is less than the distance of this circular arc inner surface to these die cavity central authorities.
3. the mould in order to form lens according to claim 2, is characterized in that, also comprise material hole, is communicated with this die cavity, and this material hole and this first exhaust passage are arranged at the opposite side of this die cavity respectively.
4. the mould in order to form lens according to claim 3, is characterized in that, the connectivity part of this material hole and this die cavity is less than the distance of this circular arc inner surface to these die cavity central authorities to the distance of these die cavity central authorities.
5. the mould in order to form lens according to claim 3, is characterized in that, this sectional area escaping gas cross section is same as in fact the sectional area of this material hole and this die cavity joint.
6. the mould in order to form lens according to claim 1, is characterized in that, this first degree of depth is greater than this second degree of depth.
7. the mould in order to form lens according to claim 1, is characterized in that, the scope of this first degree of depth drops between 0.015 millimeter to 0.025 millimeter, and the scope of this second degree of depth drops between 0.005 millimeter to 0.007 millimeter.
8. the mould in order to form lens according to claim 1, is characterized in that, this first exhaust passage and this second exhaust passage are along surrounding's arrangement of this die cavity, and this first exhaust passage and this second exhaust passage communicate with each other.
9. the mould in order to form lens according to claim 1, is characterized in that, comprising:
First mould; And
Second mould, wherein form this die cavity, this discharge chamber, this first exhaust passage and this at least one second exhaust passage between this first mould and this second mould, this first degree of depth be this first mould and this second mould in the spacing at this first exhaust passage place, and this second degree of depth is that this first mould and this second mould are in the spacing at this second exhaust passage place.
10. lens, is characterized in that, comprising:
First optical surface;
Second optical surface is relative with this first optical surface; And
Edge, wherein this first optical surface of this edge conjunction and this second optical surface, and this edge comprises:
Flash portion; And
At least one arc sections, is connected with this flash portion, and wherein this flash portion is less than the distance of this arc sections to this lens center to the distance of this lens center.
11. lens according to claim 10, is characterized in that, also comprise:
Protuberance, is positioned at the opposite side in this flash portion, and is connected with this arc sections, and wherein this protuberance is less than the distance of this arc sections to this lens center to the distance of this lens center, and this flash portion is different from the shape of this protuberance.
The manufacture method of 12. 1 kinds of lens, is characterized in that, comprising:
Mould is provided, to form die cavity, wherein this die cavity is vented channel connection to the discharge chamber being positioned at this die cavity periphery via the first exhaust passage and at least one second, this first exhaust passage and this second exhaust passage have first degree of depth and second degree of depth respectively, and this first degree of depth is different from this second degree of depth;
Fill in material in this die cavity, and make the gas in this die cavity be expelled to this discharge chamber via this first exhaust passage and this second exhaust passage; And
This material cooled is solidified, to form lens in this die cavity.
The manufacture method of 13. lens according to claim 12, it is characterized in that, this mould has escapes gas cross section and at least one circular arc inner surface, this the first exhaust channel connection this escape gas cross section, and this distance escaping gas cross section to these die cavity central authorities is less than the distance of this circular arc inner surface to these die cavity central authorities.
The manufacture method of 14. lens according to claim 12, is characterized in that, when being filled in this die cavity by this material, this material can not be spilled over to this second exhaust passage, and this material is spilled over to this first exhaust passage slightly.
The manufacture method of 15. lens according to claim 14, is characterized in that, the part being slightly spilled over to this first exhaust passage of this material is not removed.
The manufacture method of 16. lens according to claim 12, is characterized in that, this mould comprises the first mould and the second mould, and the method forming this die cavity comprises:
By this first mould and this second mould superimposed, to form this die cavity, this mould also forms this discharge chamber, this first exhaust passage and this at least one second exhaust passage simultaneously, wherein this first degree of depth be this first mould and this second mould in the spacing at this first exhaust passage place, and this second degree of depth is that this first mould and this second mould are in the spacing at this second exhaust passage place.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW102143491A TW201520024A (en) | 2013-11-28 | 2013-11-28 | Mold configured to form a lens, lens and manufacturing method of a lens |
| TW102143491 | 2013-11-28 |
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| Publication Number | Publication Date |
|---|---|
| CN104669475A true CN104669475A (en) | 2015-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410044429.0A Pending CN104669475A (en) | 2013-11-28 | 2014-02-07 | Mold for forming lens, lens and method for manufacturing lens |
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| CN (1) | CN104669475A (en) |
| TW (1) | TW201520024A (en) |
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| CN109368996A (en) * | 2018-12-24 | 2019-02-22 | 成都光明光学元件有限公司 | The molding die of array fly's-eye lens |
| WO2020133169A1 (en) * | 2018-12-28 | 2020-07-02 | 瑞声精密制造科技(常州)有限公司 | Mould |
| CN113927835A (en) * | 2021-10-22 | 2022-01-14 | 江苏汇鼎光学眼镜有限公司 | Auxiliary device is filled to resin in resin glasses lens production process |
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| CN114939963B (en) * | 2022-05-11 | 2023-10-03 | 株洲时代瑞唯减振装备有限公司 | Flash-free exhaust device and method for polymer product |
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2014
- 2014-02-07 CN CN201410044429.0A patent/CN104669475A/en active Pending
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| JPH08337428A (en) * | 1995-06-08 | 1996-12-24 | Olympus Optical Co Ltd | Glass lens forming mold |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109368996A (en) * | 2018-12-24 | 2019-02-22 | 成都光明光学元件有限公司 | The molding die of array fly's-eye lens |
| WO2020133169A1 (en) * | 2018-12-28 | 2020-07-02 | 瑞声精密制造科技(常州)有限公司 | Mould |
| CN113927835A (en) * | 2021-10-22 | 2022-01-14 | 江苏汇鼎光学眼镜有限公司 | Auxiliary device is filled to resin in resin glasses lens production process |
| CN113927835B (en) * | 2021-10-22 | 2023-06-30 | 江苏汇鼎光学眼镜有限公司 | Resin filling auxiliary device in production process of resin spectacle lenses |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201520024A (en) | 2015-06-01 |
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Application publication date: 20150603 |