CN1782744A - Lens for digital camera and its producing method - Google Patents
Lens for digital camera and its producing method Download PDFInfo
- Publication number
- CN1782744A CN1782744A CNA2004100772910A CN200410077291A CN1782744A CN 1782744 A CN1782744 A CN 1782744A CN A2004100772910 A CNA2004100772910 A CN A2004100772910A CN 200410077291 A CN200410077291 A CN 200410077291A CN 1782744 A CN1782744 A CN 1782744A
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- Prior art keywords
- lens
- digital camera
- filter coating
- matrix
- coating
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Abstract
The present invention provides a kind of lens for digital camera. The lens includes lens body and filtering film, the lens body is one common lens for digital camera, and the filtering film is attached to the lens body through hot pressing. The making process of the lens for digital camera includes coating ultraviolet cured glue, evaporation coating one layer of planar filtering film onto the surface of the ultraviolet cured glue, irradiating with ultraviolet ray to separate the planar filtering film from the glass base, hot pressing the planar filtering film onto the lens body and other steps.
Description
[technical field]
The invention relates to a kind of optical lens, especially about a kind of lens for digital camera and manufacture method thereof.
[background technology]
In the structure of lens module of digital camera, generally all have lens combination, optical filter and image sensor etc.Wherein lens combination is used for the digital camera imaging, generally forms to several lens by one, for the lens transmittance being increased or wear-resisting, often in lens surface evaporation thin film.Optical filter is used to isolate specific infrared light or ultraviolet light receives so that produce noise to prevent image sensor, antireflection (AR coating) optical filter and IR-cut (IR-CUT coating) optical filter are arranged usually, and optical filter mainly is to form with diamond cutter or emery wheel cutting after plated film is made on glass plate.Along with the volume of lens module of digital camera constantly reduces, its inner numerous spare part has influenced reducing of lens module of digital camera volume, also increased the complexity of camera lens module assembling, and evaporated film will prolong the manufacturing time of digital camera on lens.
The basic structure of existing digital camera lens as shown in Figure 6, it mainly is made up of lens barrel 2 and base 3 two parts, wherein the top is equipped with first eyeglass 4 in the lens barrel 2, this eyeglass is equipped with the size of baffle ring 5 in order to aperture between the control eyeglass for 4 times, baffle ring is equipped with second eyeglass, 6, the second eyeglasses 6 for 5 times and has optical filter 7.CMOS (Complementary Metal-Oxide Semiconductor, complementarity matal-oxide semiconductor) or CCD (Charge Coupled Device, charge-coupled device) image sensor 8 are installed in the base 3.When assembling this camera lens module, needing successively, preface is installed to image sensor 8, optical filter 7, second eyeglass 6, baffle ring 5 and first eyeglass 4 in this camera lens module.As seen, since spare part numerous cause this camera lens module volume to be difficult to dwindle and assemble the complexity.
In view of this, provide a kind of and reduce the lens module of digital camera volume, lens for digital camera easy to assembly is real in necessary.
[summary of the invention]
The object of the present invention is to provide a kind of lens module of digital camera volume, lens for digital camera easy to assembly of reducing.
Another object of the present invention is to provide a kind of method of making above-mentioned lens for digital camera.
In order to realize purpose of the present invention, the invention provides a kind of lens for digital camera, comprise lens matrix and filter coating, wherein lens matrix is the ordinary digital camera lens, filter coating is to be attached on the lens matrix by hot pressing mode.
In order to realize another object of the present invention, a kind of method of making above-mentioned lens for digital camera is provided, may further comprise the steps:
The uniform water-soluble ultra-violet curing glue of coating on glass substrate;
Place vacuum evaporation indoor the glass substrate that scribbles ultra-violet curing glue;
In ultra-violet curing glue surface evaporation one layer plane filter coating;
From the indoor taking-up of vacuum evaporation, and irradiating ultraviolet light is separated glass substrate with the plane filter coating with the said goods;
By pressure sintering the plane filter coating is attached on the lens matrix, thus the filter coating on the formation lens;
Utilize the residual ultra-violet curing glue on deionized water (DI water) flush away filter coating surface can obtain lens for digital camera.
This lens for digital camera is combined as a whole lens and filter coating, can realize the dual-use function of lens and optical filter, can reduce the use of optical filter, also reduced the component count in the camera lens, make it simple in structure, easy to assembly, thus reduced built-up time and difficulty.
[description of drawings]
Fig. 1 is a lens for digital camera structural drawing of the present invention;
Fig. 2 is the coating ultra-violet curing glue synoptic diagram of lens for digital camera manufacture method step 1 of the present invention;
Fig. 3 is the vacuum evaporation film synoptic diagram of lens for digital camera manufacture method step 2 of the present invention;
Fig. 4 is the UV-irradiation synoptic diagram of lens for digital camera manufacture method step 3 of the present invention;
Fig. 5 is the hot pressing synoptic diagram of lens for digital camera manufacture method step 4 of the present invention;
Fig. 6 is existing digital camera structural drawing.
[embodiment]
Lens for digital camera of the present invention is to be used for small digital cameras, or portable electronic equipments such as the mobile phone of band digital camera, PDA.
Please refer to shown in Figure 1ly, lens for digital camera 1 of the present invention comprises a lens matrix 10 and a filter coating 20.Wherein lens matrix 10 is common digital camera with spherical lens or non-spherical lens, and its material is the transparent bodies such as glass or plastics, and filter coating 20 is to be attached on the lens matrix 10 by hot pressing mode, and it can be anti-reflective film, infrared cut-off light filtering films etc.
Please be simultaneously with reference to Fig. 2, Fig. 3, Fig. 4 and shown in Figure 5, the manufacture method of this lens for digital camera 1 may further comprise the steps:
The uniform water-soluble ultra-violet curing glue 31 of coating on glass substrate 30;
The glass substrate 30 that scribbles ultra-violet curing glue 31 is placed the vacuum evaporation that vapor deposition source 35 is installed indoor (figure does not show);
In ultra-violet curing glue 31 surperficial evaporation one layer plane filter coatings 33;
From the indoor taking-up of vacuum evaporation, and irradiating ultraviolet light 32 is separated glass substrate 30 with plane filter coating 33 with the said goods;
By pressure sintering plane filter coating 33 is attached on the lens matrix 10, thus the filter coating 20 on the formation lens 1;
Utilize the residual ultra-violet curing glue 31 on deionized water (DI water) flush away filter coating surface can obtain lens for digital camera 1.
The plane filter coating 33 of the vacuum vapour deposition evaporation among the present invention also can be realized by other physical gas-phase deposite method, as vacuum sputtering, vacuum ion plating etc.
Lens for digital camera 1 of the present invention is combined as a whole lens matrix 10 and filter coating 20, can realize the dual-use function of lens and optical filter, can reduce the use of optical filter in the digital camera lens, promptly reduced the component count in the camera lens, make it simple in structure, easy to assembly, thus reduced built-up time and difficulty, and owing to make after 33 one-shot formings of plane filter coating again hot pressing respectively on lens matrix 10, compared to existing with lens plated film tool high-level efficiency more one by one.
Claims (10)
1. lens for digital camera, it is characterized in that: these lens comprise lens matrix and filter coating, and wherein lens matrix is the ordinary digital camera lens, and this filter coating is to be attached on the lens matrix by hot pressing mode.
2. lens for digital camera as claimed in claim 1 is characterized in that: the material of described lens matrix is a glass.
3. lens for digital camera as claimed in claim 1 is characterized in that: the material of described lens matrix is plastics.
4. lens for digital camera as claimed in claim 1 is characterized in that: described lens matrix is a spherical lens.
5. lens for digital camera as claimed in claim 1 is characterized in that: described lens matrix is a non-spherical lens.
6. lens for digital camera as claimed in claim 1 is characterized in that: described filter coating is an anti-reflective film.
7. lens for digital camera as claimed in claim 1 is characterized in that: described filter coating is an infrared cut-off light filtering films.
8. the manufacture method of a lens for digital camera is characterized in that: may further comprise the steps:
The uniform water-soluble ultra-violet curing glue of coating on glass substrate;
Place vacuum evaporation indoor the glass substrate that scribbles ultra-violet curing glue;
In ultra-violet curing glue surface evaporation one layer plane filter coating;
From the indoor taking-up of vacuum evaporation, and irradiating ultraviolet light is separated glass substrate with the plane filter coating with the said goods;
By pressure sintering the plane filter coating is attached on the lens matrix, thus the filter coating on the formation lens;
Utilize the residual ultra-violet curing glue on deionized water flush away filter coating surface can obtain lens for digital camera.
9. the manufacture method of lens for digital camera as claimed in claim 8, it is characterized in that: described plane filter coating also can make by vacuum sputtering.
10. the manufacture method of lens for digital camera as claimed in claim 8, it is characterized in that: described plane filter coating also can make by the vacuum ion plating method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100772910A CN100445773C (en) | 2004-12-03 | 2004-12-03 | Lens for digital camera and its producing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100772910A CN100445773C (en) | 2004-12-03 | 2004-12-03 | Lens for digital camera and its producing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1782744A true CN1782744A (en) | 2006-06-07 |
| CN100445773C CN100445773C (en) | 2008-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100772910A Expired - Fee Related CN100445773C (en) | 2004-12-03 | 2004-12-03 | Lens for digital camera and its producing method |
Country Status (1)
| Country | Link |
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| CN (1) | CN100445773C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7701649B2 (en) | 2007-09-11 | 2010-04-20 | Young Optics Inc. | Fixed-focus lens |
| CN101173991B (en) * | 2006-10-31 | 2010-06-02 | 三星电机株式会社 | Lens having ir cut-off filter, manufacturing method thereof, and camera module using the same |
| CN101452083B (en) * | 2007-12-06 | 2011-09-28 | 鸿富锦精密工业（深圳）有限公司 | Optical element and method for manufacturing same |
| CN103105635A (en) * | 2013-02-07 | 2013-05-15 | 杭州麦乐克电子科技有限公司 | Filter lens |
| CN106772716A (en) * | 2017-02-07 | 2017-05-31 | 长沙青波光电科技有限公司 | The preparation method of big NA aspheric designs |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1057611A (en) * | 1986-03-24 | 1992-01-08 | 埃罗-瓦尼施公司 | Granular metal applies gloss material and preparation method thereof |
| AU741691C (en) * | 1997-05-16 | 2004-08-12 | Hoya Kabushiki Kaisha | Plastic optical component having a reflection prevention film and mechanism for making reflection prevention film thickness uniform |
| JP2002303727A (en) * | 2001-04-06 | 2002-10-18 | Nitto Denko Corp | Method for manufacturing polarizing film |
-
2004
- 2004-12-03 CN CNB2004100772910A patent/CN100445773C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101173991B (en) * | 2006-10-31 | 2010-06-02 | 三星电机株式会社 | Lens having ir cut-off filter, manufacturing method thereof, and camera module using the same |
| US7701649B2 (en) | 2007-09-11 | 2010-04-20 | Young Optics Inc. | Fixed-focus lens |
| CN101452083B (en) * | 2007-12-06 | 2011-09-28 | 鸿富锦精密工业（深圳）有限公司 | Optical element and method for manufacturing same |
| CN103105635A (en) * | 2013-02-07 | 2013-05-15 | 杭州麦乐克电子科技有限公司 | Filter lens |
| CN106772716A (en) * | 2017-02-07 | 2017-05-31 | 长沙青波光电科技有限公司 | The preparation method of big NA aspheric designs |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100445773C (en) | 2008-12-24 |
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Granted publication date: 20081224 Termination date: 20151203 |
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| EXPY | Termination of patent right or utility model |