CN112015023A - Light filtering component used in lens module - Google Patents
Light filtering component used in lens module Download PDFInfo
- Publication number
- CN112015023A CN112015023A CN201910466362.2A CN201910466362A CN112015023A CN 112015023 A CN112015023 A CN 112015023A CN 201910466362 A CN201910466362 A CN 201910466362A CN 112015023 A CN112015023 A CN 112015023A
- Authority
- CN
- China
- Prior art keywords
- filter
- contact
- space
- fixed seat
- supporting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B11/00—Filters or other obturators specially adapted for photographic purposes
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/006—Filter holders
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
Abstract
A filter assembly for being installed in a lens module comprises a fixed seat with a hollow part, a filter arranged at the position of the hollow part, a shading sheet which is annular and arranged on the filter and a contact element. The hollow part is formed by a supporting part extending from the fixed seat to the hollow part in a surrounding way, and a first contact space which can respectively extend the outer peripheries of the optical filter and the shading sheet to the inside is formed between the supporting part and the fixed seat. The contact member is formed in the contact space by injecting an adhesive material into the first contact space and cooling the material so that the filter and the shading sheet are stopped at the position of the hollow part and are fixed on the fixed seat.
Description
Technical Field
The present invention relates to a filter assembly, and more particularly, to a filter assembly applied in a lens module, which can improve the assembling efficiency of the lens module and greatly reduce the labor cost.
Background
The optical filter is mainly installed in a lens module to filter light, thereby ensuring the lens module to have good imaging quality. The conventional optical filter is mainly glued on a spacer ring by a glue dispenser. The conventional dispensing method is prone to cause poor contact force between the optical filter and the spacer ring due to the problems of deterioration, uneven coating or incomplete curing of the adhesive, and the like, thereby causing peeling between the optical filter and the spacer ring, causing failure of the lens module and poor production efficiency.
In addition, as disclosed in taiwan patent No. I366737, a lens module is provided, which includes a lens barrel, and a filter and a spacer ring accommodated in the lens barrel. The filter and the spacer ring are integrally formed. The lens module is in an integral molding structure with the optical filter and the spacing ring, so that the optical filter is stably fixed on the spacing ring and cannot fall off from the spacing ring, and a dispensing process between the optical filter and the spacing ring is avoided, thereby improving the production efficiency of products.
Although the aforesaid patent can prevent the optical filter from falling off from the spacer ring, since the spacer ring is directly formed on the periphery of the optical filter by injection molding, when the optical filter is disposed in an injection mold, in order to avoid the material escaping phenomenon of the plastic material in the injection mold, a certain clamping force must be generated on the optical filter by the injection mold, so that the optical filter is easily broken in the injection mold. In addition, in the cooling process of the plastic material, the spacer ring is easily deformed in the cooling process, so that the assembly of the spacer ring in the lens module causes deviation, and the imaging quality of the lens module is affected.
Therefore, how to provide a filtering assembly capable of improving the assembly efficiency of the lens module and greatly reducing the labor cost is the problem to be solved by the invention.
Disclosure of Invention
The present invention is directed to a light filtering assembly, and more particularly, to a light filtering assembly applied in a lens module, which can improve the assembling efficiency of the lens module and greatly reduce the labor cost.
To achieve the above object, the present invention provides a filter assembly for use in a lens module, which includes a fixing base, a filter, a light shielding sheet and a contact member. The center of the fixed seat is provided with a hollow part, the hollow part is formed by a supporting part which extends from the fixed seat to the hollow part in a surrounding way, and a first contact space is formed between the supporting part and the fixed seat. The optical filter is arranged at the hollow part of the fixed seat and supported by the supporting part, and the outer periphery of the optical filter extends into the first contact space. The contact member is formed in the contact space by injecting an adhesive material into the first contact space and cooling the material so that the filter and the shading sheet are stopped at the position of the hollow portion and fixed on the fixing seat.
In one embodiment, the adhesive material is a silicone rubber.
In an embodiment, the supporting portion further includes a supporting platform, and the filter is carried on the supporting platform.
In an embodiment, the supporting platform further has a second contact space recessed thereon, and the second contact space further includes an auxiliary contact member therein for contacting the filter with the supporting platform through the auxiliary contact member.
In one embodiment, the auxiliary contact member is formed by injecting an adhesive material into the second contact space in advance, then supporting the filter on the support portion, and cooling the filter to form the filter in the second contact space, so that the filter is positioned on the support portion through the second contact member in advance.
In one embodiment, the adhesive material is a silicone rubber.
In one embodiment, the first contact member has a contact groove respectively surrounding the outer peripheries of the filter and the light shielding sheet, and the outer peripheries of the filter and the light shielding sheet are covered by the contact groove.
In one embodiment, the contact groove is further formed by a first contact surface, a second contact surface opposite to the first contact surface, and a third contact surface connected between the first contact surface and the second contact surface.
In one embodiment, the first contact surface is located on one surface of the optical filter having a light shielding sheet, and is in contact with a part of the optical filter and a part of the light shielding sheet respectively.
In one embodiment, the second contact surface is located on the other surface of the filter opposite to the light shielding sheet and contacts with part of the filter.
Compared with the prior art, the filter assembly of the invention has the following advantages:
the filter assembly is formed by fixing the filter and the shading sheet on the fixing seat through the contact element, so that the filter assembly can be quickly installed in the lens module.
The optical filter and the shading sheet are mutually contacted with the fixed seat through the contact piece, so that the problem that the fixed seat is deformed due to shrinkage when the known fixed seat is formed on the optical filter in an injection molding mode can be avoided, and the production yield of the optical filter assembly can be greatly improved.
Drawings
FIG. 1 is an exploded perspective view of the present invention from a first perspective; FIG. 2 is a perspective view of a second perspective view of the present invention
An exploded view;
FIG. 3 is an exploded plan view of the present invention;
FIG. 4 is a schematic cross-sectional view of FIG. 3;
fig. 5 is a partially enlarged schematic view of fig. 4.
In the above figures, the reference numerals have the following meanings:
10 light filtering assembly
20 fixed seat
21 hollow part
22 support part
23 first contact space
24 supporting platform
25 second contact space
30 optical filter
40 light shading sheet
50 contact
51 contact groove
52 first contact surface
53 second contact surface
54 third contact surface
60 auxiliary contact
Detailed Description
The following description of the present invention and its technical contents will be made with reference to the accompanying drawings:
as shown in fig. 1 to 5, the present invention is a light filtering assembly for use in a lens module, the light filtering assembly 10 includes a fixing base 20, a light filter 30, a light shielding sheet 40, a contact 50 and an auxiliary contact 60.
The fixing base 20 is formed by injection molding of a plastic material, the fixing base 20 has a hollow portion 21 at the center, the hollow portion 21 is surrounded by a supporting portion 22 extending from the fixing base 20 toward the hollow portion 21, and a first contact space 23 is formed between the supporting portion 22 and the fixing base 20. In addition, a supporting platform 24 is further formed on the supporting portion 21, and a second contact space 25 is formed on the supporting platform 24.
The filter 30 is mounted on the hollow portion 21 and carried on the supporting platform 24 of the supporting portion 22, and the outer periphery of the filter 30 extends into the first contact space 23.
The light shielding sheet 40 is in a ring shape, and is disposed on the filter 30, opposite to the supporting portion 22, and an outer periphery of the light shielding sheet 40 extends into the first contact space 23.
The contact element 50 is formed by injecting an adhesive material into the first contact space 23 and cooling the material, so that the contact element 50 covers the outer peripheries of the filter 30 and the light shielding sheet 40 in the first contact space 23. Because the contact member 50 has adhesiveness, after the contact member 50 is molded in the first contact space 23, the filter 30 and the light shielding sheet 40 can be effectively bonded to the fixing base 20, and the filter 30 can be effectively positioned in the hollow portion 21.
The auxiliary contact member 60 is pre-injected into the second contact space 25 by using the same adhesive material as the contact member 50, so that when the filter 30 is supported on the support portion 22, the filter 30 can be stably supported on the support portion 22 in advance, thereby preventing the contact member 50 from causing the filter 30 to shift on the support portion 22 during molding.
In practical operation, the fixing base 20 is formed by injection molding, the fixing base 20 is placed in a lower mold base (not shown), an adhesive material is injected into the second contact space 25 of the fixing base 20, and the optical filter 30 and the light shielding sheet 40 are sequentially placed in the hollow portion 21, such that the optical filter 30 is supported on the supporting platform 24 and is bonded to the supporting portion 22, and is pre-positioned on the supporting portion 22. Then, an upper mold base (not shown) is covered on the lower mold base, and then an adhesive material is injected between the upper mold base and the lower mold base, so that the adhesive material is filled in the first contact space 23, after the adhesive material is cooled in the first contact space 23 and the second contact space 25, the contact element 50 is formed in the first contact space 23, the auxiliary contact element 60 is formed in the second contact space 25, and finally the molded filter assembly 10 is taken out from between the upper mold base and the lower mold base.
It is worth mentioning that the adhesive material is mainly a silica gel, which has the characteristics of high adhesion, low melting point, etc. Before being injected into the first contact space 23 and the second contact space 25, the silica gel is heated to form a liquid state, so as to be conveniently injected into the first contact space 23 and the second contact space 25, and since the silica gel has the characteristic of low melting point, the fixing seat 20 is not melted, and the fixing seat 20 is not deformed. Meanwhile, after the silica gel is cooled and formed, the optical filter 30 and the light shielding sheet 40 can be effectively ensured to be stably held on the fixing seat 20, and the production yield of the optical filter assembly 10 is further improved.
After the contact element 50 is formed in the first contact space 23, a contact groove 51 surrounding the outer peripheries of the optical filter 30 and the light shielding sheet 40 is formed on the contact element 50, and the contact groove 51 covers the outer peripheries of the optical filter 30 and the light shielding sheet 40. The contact slot 51 includes a first contact surface 52, a second contact surface 53 opposite to the first contact surface 52, and a third contact surface 54 connected between the first contact surface 52 and the second contact surface 53. The first contact surface 52 is located on one surface of the optical filter 30 having the light-shielding sheet 40, and is in contact with a portion of the optical filter 30 and a portion of the light-shielding sheet 40. The second contact surface 53 is located on the other surface of the filter 30 and contacts with a portion of the filter 30, so as to ensure that the filter 30 and the light shielding sheet 40 can be stably adhered to the fixing base 50.
Therefore, the filter assembly can obtain higher production qualification rate, and when the filter assembly is assembled in a lens module (not shown in the figure), the phenomenon that the filter is peeled off from the fixed seat can be effectively prevented, so that the lens module can obtain good imaging quality, and the service life of the lens module can be prolonged.
In conclusion, the present invention has indeed met the requirements of the patent application, and a patent application is legally proposed. However, the above description is only a preferred embodiment of the present invention, and should not be used to limit the scope of the claims of the present invention. Modifications and variations of the present invention, which would occur to those skilled in the art, are intended to be included within the scope of the present invention as defined by the appended claims.
Claims (10)
1. A filter assembly for use in a lens module, comprising:
a fixed seat, the center of which is provided with a hollow part, the hollow part is formed by a supporting part extending from the fixed seat to the hollow part in a surrounding way, and a first contact space is formed between the supporting part and the fixed seat;
the optical filter is arranged at the hollow part of the fixed seat, is supported by the supporting part, and extends into the first contact space from the outer periphery of the optical filter;
a shading sheet which is in a ring shape and is arranged on one surface of the optical filter opposite to the supporting part, and the outer periphery of the shading sheet extends into the first contact space; and
a contact piece, which is injected into the first contact space by using an adhesive material and is formed in the contact space after cooling so as to stop the optical filter and the shading sheet at the position of the hollow part and fix the optical filter and the shading sheet on the fixed seat.
2. The filter assembly of claim 1, wherein the adhesive material is a silicone.
3. The filter assembly of claim 1, wherein the support further comprises a support platform, and the filter is carried on the support platform.
4. The filter assembly of claim 3, wherein the supporting platform further comprises a second contact space recessed therein, the second contact space further comprising an auxiliary contact member for contacting the filter with the supporting platform via the auxiliary contact member.
5. The filter assembly of claim 4, wherein the auxiliary contact member is formed by injecting an adhesive material into the second contact space, supporting the filter on the supporting portion, and cooling the filter to the second contact space, so that the filter is positioned on the supporting portion through the auxiliary contact member.
6. The filter assembly of claim 5, wherein the adhesive material is a silicone.
7. The filter assembly of claim 1, wherein the first contact member has a contact groove surrounding the outer peripheries of the filter and the anti-dazzling screen, and the outer peripheries of the filter and the anti-dazzling screen are covered by the contact groove.
8. The filter assembly of claim 7, wherein the contact groove is further formed by a first contact surface, a second contact surface opposite to the first contact surface, and a third contact surface connected between the first contact surface and the second contact surface.
9. The filter assembly of claim 8, wherein the first contact surface is disposed on a surface of the filter having a light shielding plate and contacts a portion of the filter and a portion of the light shielding plate, respectively.
10. The optical filter assembly according to claim 8, wherein the second contact surface is disposed on the other side of the filter opposite to the light shielding plate and contacts with a portion of the filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910466362.2A CN112015023A (en) | 2019-05-30 | 2019-05-30 | Light filtering component used in lens module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910466362.2A CN112015023A (en) | 2019-05-30 | 2019-05-30 | Light filtering component used in lens module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112015023A true CN112015023A (en) | 2020-12-01 |
Family
ID=73500540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910466362.2A Pending CN112015023A (en) | 2019-05-30 | 2019-05-30 | Light filtering component used in lens module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112015023A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113327861A (en) * | 2021-05-11 | 2021-08-31 | 苏州昀冢电子科技股份有限公司 | Camera module chip packaging base, base combination and manufacturing method thereof |
Citations (10)
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|---|---|---|---|---|
| JPH06300953A (en) * | 1993-04-16 | 1994-10-28 | Olympus Optical Co Ltd | Optical element and adhering method therefor |
| CN1782763A (en) * | 2004-11-29 | 2006-06-07 | 阿尔卑斯电气株式会社 | Camera module |
| KR20130003460A (en) * | 2011-06-30 | 2013-01-09 | 엘지이노텍 주식회사 | Lens assembly and camera module having the same |
| CN104660889A (en) * | 2013-11-21 | 2015-05-27 | 三星电机株式会社 | Camera module |
| CN105051454A (en) * | 2013-03-15 | 2015-11-11 | 摩根阳光公司 | Light panel, optical assembly with improved interface and light panel with improved manufacturing tolerances |
| US20160091644A1 (en) * | 2014-09-29 | 2016-03-31 | Seiko Epson Corporation | Optical filter device, optical module, and electronic apparatus |
| CN207074333U (en) * | 2017-07-19 | 2018-03-06 | 钒德电子股份有限公司 | Vision lenses group connects fixed structure |
| JP2018060161A (en) * | 2016-09-30 | 2018-04-12 | 光寶電子（廣州）有限公司 | Filter assembly and camera module having the same |
| US20180321463A1 (en) * | 2017-05-03 | 2018-11-08 | Semrock, Inc. | Mount for flat optical surface |
| CN208581278U (en) * | 2018-03-29 | 2019-03-05 | 宁波舜宇光电信息有限公司 | Camera module and its filtering assembly, circuit board assemblies and filtering assembly semi-finished product |
-
2019
- 2019-05-30 CN CN201910466362.2A patent/CN112015023A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06300953A (en) * | 1993-04-16 | 1994-10-28 | Olympus Optical Co Ltd | Optical element and adhering method therefor |
| CN1782763A (en) * | 2004-11-29 | 2006-06-07 | 阿尔卑斯电气株式会社 | Camera module |
| KR20130003460A (en) * | 2011-06-30 | 2013-01-09 | 엘지이노텍 주식회사 | Lens assembly and camera module having the same |
| CN105051454A (en) * | 2013-03-15 | 2015-11-11 | 摩根阳光公司 | Light panel, optical assembly with improved interface and light panel with improved manufacturing tolerances |
| CN104660889A (en) * | 2013-11-21 | 2015-05-27 | 三星电机株式会社 | Camera module |
| US20160091644A1 (en) * | 2014-09-29 | 2016-03-31 | Seiko Epson Corporation | Optical filter device, optical module, and electronic apparatus |
| JP2018060161A (en) * | 2016-09-30 | 2018-04-12 | 光寶電子（廣州）有限公司 | Filter assembly and camera module having the same |
| TW201814333A (en) * | 2016-09-30 | 2018-04-16 | 光寶電子（廣州）有限公司 | Filter assembly and camera module having the same |
| US20180321463A1 (en) * | 2017-05-03 | 2018-11-08 | Semrock, Inc. | Mount for flat optical surface |
| CN207074333U (en) * | 2017-07-19 | 2018-03-06 | 钒德电子股份有限公司 | Vision lenses group connects fixed structure |
| CN208581278U (en) * | 2018-03-29 | 2019-03-05 | 宁波舜宇光电信息有限公司 | Camera module and its filtering assembly, circuit board assemblies and filtering assembly semi-finished product |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113327861A (en) * | 2021-05-11 | 2021-08-31 | 苏州昀冢电子科技股份有限公司 | Camera module chip packaging base, base combination and manufacturing method thereof |
| CN113327861B (en) * | 2021-05-11 | 2024-02-09 | 苏州昀冢电子科技股份有限公司 | Camera module chip packaging base, base combination and manufacturing method thereof |
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| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20201201 |
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| WD01 | Invention patent application deemed withdrawn after publication |