CN1136463C - Manufacture of composite optical element - Google Patents
Manufacture of composite optical element Download PDFInfo
- Publication number
- CN1136463C CN1136463C CNB991185153A CN99118515A CN1136463C CN 1136463 C CN1136463 C CN 1136463C CN B991185153 A CNB991185153 A CN B991185153A CN 99118515 A CN99118515 A CN 99118515A CN 1136463 C CN1136463 C CN 1136463C
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- lens
- set collar
- optical surface
- making
- lateral margin
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Abstract
The present invention relates to a method for manufacturing composite optical elements. Plastic lens raw materials are formed on a lens, wherein the lens has a first optical surface and a second optical surface which are respectively arranged at the upper lateral edge and the lower lateral edge of the lens, wherein the lateral edge is inclined a vertical line of the center of the lens at a certain angle, and a part of first optical surface and the lateral edge of the lens is only coated by lens materials formed form lens raw materials. In this way, the lens materials formed form the lens raw materials are tightly combined with the lens.
Description
The present invention relates to a kind of method for making of optical element, particularly relate to a kind of method for making of composite optic element.
For a composite optic element, can be on transparent optical element (as being material) with glass, quartz with the transparent plastic material model.From the angle of optics, general spherical lens is understood some aberration unavoidably, but if lens surface is made aspheric surface, just can reduce the generation of spherical aberration.
From the aspect of processing, make needed time cost of aspheric surface glass mirror and equipment cost but much larger than making spherical lens.Yet along with the development of model technology, the optical mirror slip of plastic material also is used gradually.Processing of plastic is more better than glass, becomes the needed cost of non-spherical lens also much lower than glass plastic processing, so have good potentiality.In addition, plastics also have in light weight, dyeability (tintability) and good, the lower heat treatment temperature of impact resistance (shock resistance).Glass then has radiation resistance (radiation resistance), permanance (durability), resistance to scraping (scratchresistance) and carries out surface treatment easily.Therefore, just have both characteristics concurrently in conjunction with the compound lens of plastics and glass.
Yet this kind compound lens mainly contains two problems: the thermal expansion coefficient difference of first plastics and glass is very big; It two is that the connectivity of plastics and glass is not good.Generally speaking, if the thermal expansion coefficient difference between the composition of compound lens too conference cause variation that compound lens can't bearing temperature and delamination (delamination) or break.In addition, because molecular structure and functional group can't provide effective chemical bonded refractory (chemical bonding) or physical entanglement (physical entanglement) between glass and plastics, so the interface between glass and the plastics lacks powerful then property.
In order to overcome above shortcoming, existing mode is to apply one deck solid (adhesive) or couplant (coupling agent) between plastic layer and glassy layer, and it is as U.S. Pat 4,793,703 exposure; Or add couplant at plastic layer, such as Jap.P. JP 07306305 exposure; Or utilize the power of seizing on both sides by the arms of plastic overmold glass, such as Jap.P. JP 59046601, JP 01221701 and JP 08190004 exposure.The mode that adds solid or couplant will increase the cost of material and equipment because of many compositions, also must consider the influence that environmental pollution caused, and its procedure of processing is many, also make the efficient step-down of production compound lens.In addition, the mode that utilize to coat will make plastic layer stride across side and extend to the periphery of another optical surface of glass lens from an optical surface of glass lens, causes the mould structure produced comparatively complicated.
Therefore, the present invention proposes a kind of method for making of compound lens, and it only needs simple technology just can produce the compound lens that conjugation grade is good and optical property is good.
The present invention proposes a kind of method for making of compound lens, and it does not need solid or couplant, just the lens of two kinds of unlike materials can be engaged together, and manufacture craft also can be simplified.
The present invention proposes a kind of method for making of compound lens, and the lateral margin of its lens and the pedal line angle that tilts so the plastic lens after forming just can tightly grasp lens by this, and does not come off.Lens tightly need not enveloped and do not resemble prior art, increase the complicacy of structure.
The method for making of the disclosed compound lens of the present invention may further comprise the steps:
A kind of method for making of compound lens comprises: a set collar is placed in the mould, and this set collar can be one-body molded with mould.This set collar has inner edge, and inner edge tilts to the geometric center of set collar.Lens are placed in the set collar, and live the lateral margin of lens by the inner edge embedding of set collar, wherein the degree of tilt of the inner edge of set collar is designed to consistently with the lateral margin of lens, and wherein the thickness of set collar is lower than the thickness of these lens.One lens raw material is put in the mould, and covered lens and set collar.One patrix is placed in lens raw material top, and adjusts the position of patrix.Carry out a thermal process, the sclerosis of lens raw material is shaped, to form compound lens.Wherein the lens raw material can be plastics.
Aforesaid lens have first optical surface and second optical surface, are disposed at the upper and lower two edges of the lateral margin of lens respectively, and wherein the mirror heart pedal line of lateral margin and the lens angle that tilts makes the external diameter of the external diameter of second optical surface less than first optical surface.In addition, also can be at first optical surface and the lateral margin of lens, be as the criterion with the mirror heart pedal line of lens, form a chamfering, to slow down stress, prevent the lens fracture of model or break.
A kind of method for making of compound lens comprises: set collar is placed in the mould, and this set collar also can be one-body molded with mould.This set collar has inner edge, and inner edge tilts to the geometric center of set collar.One lens are placed in the set collar, and live the lateral margin of lens by the inner edge embedding of set collar, wherein the degree of tilt of the inner edge of set collar is designed to consistently with the lateral margin of lens, and wherein the thickness of set collar is less than the thickness of lens.One patrix is placed in the lens top, and adjusts the position of patrix.With injection molding method, a lens material is penetrated between set collar, lens and patrix, form compound lens.
In addition, when compound lens adopts jetting formation process, can also on set collar, dispose a plurality of guide rods, and each guide rod contacts with the side edge portions of lens, use and fix lens.Each guide rod with the equal angles mode be disposed at these lens around.
The angle because the lateral margin of lens and pedal line tilt so the plastic lens after the formation just can tightly grasp lens by this, and does not come off, and has and engage effect preferably.And the step of manufacturing is simple, can reduce cost.And keep the optical quality of compound lens.
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, preferred embodiment cited below particularly, and conjunction with figs. elaborates.In the accompanying drawing:
Fig. 1 illustrates the example synoptic diagram according to compound lens of the present invention;
Fig. 2 A to Fig. 2 F illustrates the example of the utilizable lens kind of method for making of compound lens of the present invention;
Fig. 3 A illustrates the synoptic diagram of making compound lens according to embodiments of the invention;
Fig. 3 B illustrates the synoptic diagram of the compound lens that completes according to embodiments of the invention;
Fig. 4 A illustrates method of the present invention, when forming plastic lens with injection molding method, and the arrangement plan of set collar and lens;
Fig. 4 B illustrates method of the present invention, when forming plastic lens with injection molding method, and the arrangement plan of set collar and lens, wherein the thickness of lens is thicker; And
Fig. 4 C illustrates the top view of Fig. 4 B, to show the position relation between guide rod and the lens.
As shown in Figure 1, the present invention is the method for making that proposes a kind of compound lens 10, in order to a lens raw material is formed on the lens 12, wherein lens 12 have the first optical surface 14a and the second optical surface 14b, be disposed at the upper and lower two edges of the lateral margin 16 of lens 12 respectively, wherein lateral margin 16 and the pedal line L angle θ that tilts, and the formed mirror material 18 of lens raw material only coats the first optical surface 14a of lens 12 and the part of lateral margin 16, and it as shown in the figure.Use and make formed mirror material of lens raw material and lens fluid-tight engagement.
Fig. 2 A to Fig. 2 F be depicted as compound lens of the present invention method for making the example of utilizable lens kind.Identical label is represented similar member among the figure, and difference therebetween only is the curvature of optical surface.
In addition, when the angle θ that tilts is excessive, more can be as the criterion with pedal line, form a chamfering at first optical surface 22 and lateral margin 26 of lens 20, as the label among the figure 28,28 ' shown in.Use that to reduce plastic lens excessive and rupture with the intersection stress of lateral margin at the optical surface 22 of glass lens 20.
Below will specifically describe the method for making of compound lens of the present invention.
With reference to figure 3A, it is a synoptic diagram of making compound lens according to embodiments of the invention.Wherein the lens with Fig. 2 A are example.At first, a set collar 30 is placed in the mould, or uses set collar 30 and the integrated mould of counterdie.This set collar has inner edge 30a, and inner edge 30a tilts to the geometric center C of set collar 30.Then, lens 32 are placed in the set collar 30, and nationality is lived the part of the lateral margin 32a of lens 32 by the inner edge 30a embedding of set collar 30.Because the degree of tilt of the inner edge 30a of set collar 30 is designed to consistent with the lateral margin 32a of lens 32, so the lateral margin 32a of lens 32 can fix with the inner edge 30a driving fit of set collar 30.By this, can be when carrying out model or ejection formation with lens 32 displacements, to avoid error.
In addition, the thickness h 1 of set collar 32 should be less than the thickness h 2 of lens 32.By this, the plastic lens that forms thereafter just can not be coated to second optical surface 36 of lens 32.
Then, a lens raw material 40 is put in the mould, for example use the raw material of thermosetting plastics and so on, and cover lens 32 and set collar 30.Afterwards, a patrix 50 is placed in lens raw material 40 tops, and adjusts the position of patrix.By this, the lens sizes of desire formation can be determined.At last, carry out a thermal treatment, make the 40 sclerosis shapings of lens raw material and convert plastic lens 42 to, to form the compound lens shown in Fig. 3 B.
As mentioned above, the angle θ because the lateral margin 32a of lens 32 and pedal line tilt so the plastic lens 42 after the formation just can tightly grasp lens 32 by this, and does not come off, and has and engage effect preferably.And the step of manufacturing is simple, can reduce cost.And keep the optical quality of compound lens.
Shown in Fig. 4 A and Fig. 4 B, when using the raw material of thermoplastics and so on, just must use the mode of ejection formation to form plastic lens.Be with the discrepancy of aforesaid manufacture method, must do not insert the lens raw material in the mould earlier.Shown in Fig. 4 A, after lens 62 are inserted set collar 60, patrix 70 is placed in lens 60 tops, and adjusts the position of patrix.With injection molding method, lens material is penetrated between set collar 60, lens 62 and patrix 70, form compound lens.
If the thickness of lens is thicker, the lens 62 shown in Fig. 4 B ', can set collar 60 ' above a plurality of guide rods 64 of configuration, be preferably three, the angles of 120 degree of respectively being separated by are shown in the top view of Fig. 4 B that is illustrated as Fig. 4 C.By this, can be when plastic lens be penetrated, with set collar 60 ' with guide rod 64 seize on both sides by the arms lens 62 ', in the process of avoiding the jet-out plastic lens, the lens displacement.As mentioned above, in like manner, the angle θ because the lateral margin 32a of lens 32 and pedal line tilt so the plastic lens 42 after the formation just can tightly grasp lens 32 by this, and does not come off, and has and engage effect preferably.And the step of manufacturing is simple, can reduce cost.And keep the optical quality of compound lens.
In sum, the method for making of compound lens of the present invention has following advantage and effect under compared with prior art at least:
According to the method for making of compound lens of the present invention, it only needs simple technology just can produce the compound lens that conjugation grade is good and optical property is good.
According to the method for making of compound lens of the present invention, it does not need solid or couplant, just the lens of two kinds of unlike materials can be engaged together, and technology also can be simplified.
According to the method for making of compound lens of the present invention, the lateral margin of its lens and the pedal line angle that tilts so the plastic lens after forming just can tightly grasp lens by this, and does not come off, and the texture ratio prior art is simple, and making easily.Therefore, cost can reduce.
In sum; though the present invention discloses as above in conjunction with a preferred embodiment; yet it is not in order to limit the present invention; those skilled in the art without departing from the spirit and scope of the present invention; can do various changes and retouching, so protection scope of the present invention should be defined by accompanying Claim.
Claims (17)
1. the method for making of a compound lens comprises:
One set collar is disposed in the mould, and this set collar has an inner edge, and this inner edge tilts to the geometric center of this set collar;
One lens are placed in this set collar, and live the part of a lateral margin of these lens by this inner edge embedding of this set collar, wherein the degree of tilt of this inner edge of this set collar is designed to consistently with this lateral margin of these lens, and wherein the thickness of this set collar is less than the thickness of these lens;
One lens raw material is put in this mould, and covered these lens and this set collar;
One mold is placed in this lens raw material top, and adjusts the position of this patrix; And
Carry out a thermal treatment, this lens raw material sclerosis is shaped, to form this compound lens.
2. the method for making of compound lens as claimed in claim 1, wherein this set collar and this mould are one-body molded.
3. the method for making of compound lens as claimed in claim 1, wherein these lens have one first optical surface and one second optical surface, be disposed at the two edges of this lateral margin of these lens respectively, wherein the mirror heart pedal line of this lateral margin and these lens angle that tilts makes the external diameter of the external diameter of this second optical surface less than this first optical surface.
4. the method for making of compound lens as claimed in claim 3 also is included in this first optical surface and this lateral margin of these lens, is as the criterion with the mirror heart pedal line of these lens, forms a chamfering.
5. the method for making of compound lens as claimed in claim 1, wherein these lens are glass-like materials.
6. the method for making of compound lens as claimed in claim 1, wherein this lens raw material is a plastic materials.
7. the method for making of a compound lens comprises:
One set collar is disposed in the mould, and this set collar has an inner edge, and this inner edge tilts to the geometric center of this set collar;
One lens are placed in this set collar, and live the part of a lateral margin of these lens by this inner edge embedding of this set collar, wherein the degree of tilt of this inner edge of this set collar is designed to consistently with this lateral margin of these lens, and wherein the thickness of this set collar is less than the thickness of these lens;
One patrix is placed in this lens top, and adjusts the position of this patrix; And
With injection molding method, a lens material is penetrated between this set collar, these lens and this patrix, form this compound lens.
8. the method for making of compound lens as claimed in claim 7, wherein this set collar and this mould are one-body molded.
9. the method for making of compound lens as claimed in claim 7, wherein further comprising the steps of:
The a plurality of guide rods of configuration on this set collar, and respectively those guide rods contact with this side edge portions of these lens, use and fix this lens.
10. the method for making of compound lens as claimed in claim 9, wherein those guide rods with the equal angles mode be disposed at these lens around.
11. the method for making of compound lens as claimed in claim 10, wherein the number of those guide rods is three, and apart 120 degree.
12. the method for making of compound lens as claimed in claim 7, wherein these lens have one first optical surface and one second optical surface, be disposed at the two edges of this lateral margin of these lens respectively, wherein the mirror heart pedal line of this lateral margin and these lens angle that tilts makes the external diameter of the external diameter of this second optical surface less than this first optical surface.
13. the method for making of compound lens as claimed in claim 12 also is included in this first optical surface and this lateral margin of these lens, is as the criterion with the mirror heart pedal line of these lens, forms a chamfering.
14. the method for making of compound lens as claimed in claim 7, wherein these lens are glass-like materials.
15. the method for making of compound lens as claimed in claim 7, wherein this lens raw material is a plastic materials.
16. the method for making of a compound lens, in order to a lens raw material is formed on the lens, wherein these lens have one first optical surface and one second optical surface, be disposed at the two edges of this lateral margin of these lens respectively, the mirror heart pedal line of this lateral margin and these lens angle that tilts wherein, and the formed mirror material of this lens raw material only coats this first optical surface of these lens and the part of this lateral margin.
17. composite optic element, comprise a glass lens and a parts of plastics, wherein these lens have one first optical surface and one second optical surface, and two lateral margins, the mirror heart pedal line of wherein said lateral margin and the described glass lens angle that tilts, described parts of plastics coats the part of first optical surface and described two lateral margins of described glass lens, thereby by described angle, described glass lens and described parts of plastics is fastened togather.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991185153A CN1136463C (en) | 1999-09-06 | 1999-09-06 | Manufacture of composite optical element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991185153A CN1136463C (en) | 1999-09-06 | 1999-09-06 | Manufacture of composite optical element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1287275A CN1287275A (en) | 2001-03-14 |
| CN1136463C true CN1136463C (en) | 2004-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB991185153A Expired - Fee Related CN1136463C (en) | 1999-09-06 | 1999-09-06 | Manufacture of composite optical element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1136463C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100529821C (en) * | 2006-03-15 | 2009-08-19 | 鸿富锦精密工业（深圳）有限公司 | Optical lens set and its molding method and corresponding model establishing device |
| CN105445843A (en) * | 2014-08-22 | 2016-03-30 | 艾笛森光电股份有限公司 | Optical element structures capable of being spliced |
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1999
- 1999-09-06 CN CNB991185153A patent/CN1136463C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1287275A (en) | 2001-03-14 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Granted publication date: 20040128 Termination date: 20110906 |