CN103123433A - Lens module - Google Patents
Lens module Download PDFInfo
- Publication number
- CN103123433A CN103123433A CN2011103710761A CN201110371076A CN103123433A CN 103123433 A CN103123433 A CN 103123433A CN 2011103710761 A CN2011103710761 A CN 2011103710761A CN 201110371076 A CN201110371076 A CN 201110371076A CN 103123433 A CN103123433 A CN 103123433A
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- CN
- China
- Prior art keywords
- lens module
- camera lens
- optical filter
- electrochromic device
- infrared
- 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.)
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- Blocking Light For Cameras (AREA)
- Optical Filters (AREA)
Abstract
The invention provides a lens module which comprises an optical filter. The optical filter comprises an electrochromism device which is colorless and becomes blue when certain voltage is exerted so as to absorb infrared in light projected into the lens module. The optical filter is the electrochromism device which can absorb the infrared in light after the electrochromism device becomes blue when the voltage is exerted, and therefore visible light reflected by the optical filter along with the infrared is effectively reduced, and glaring is effectively reduced.
Description
Technical field
The present invention relates to a kind of camera lens module, particularly a kind of camera lens module with absorption optical filter.
Background technology
The camera lens module comprises a lens barrel and is assembled at least one eyeglass and an optical filter in described lens barrel, and this anti-dazzling screen and this eyeglass are adjoining.Described optical filter is used for filtering only allows the wavelength be that the visible light of 420nm-680nm passes through through the Infrared of the light of this eyeglass.And traditional optical filter is all the Infrared reflection that will be projected in the light of optical filter, allows visible transmission.And in the process that Infrared is reflected, the visible light of nearly 5% left and right can follow Infrared together to be reflected, and this part visible light can form dazzle in the image in imaging after the process Multi reflection.
Summary of the invention
In view of this, be necessary to provide a kind of camera lens module of effective minimizing dazzle.
A kind of camera lens module, it comprises an optical filter; This optical filter comprises an electrochromic device; Thereby when being used for applying a specific voltage, this electrochromic device becomes by colourless the Infrared that blueness absorbs the light that is projected to this camera lens module.
Optical filter in camera lens module provided by the invention is electrochromic device, this electrochromic device becomes Infrared can absorb light after blueness in applying voltage, thereby effectively reduce the visible light of following Infrared to be reflected by optical filter, effectively reduced the formation of dazzle.
Description of drawings
Fig. 1 is the cut-open view of the camera lens module that provides of embodiment of the present invention.
Fig. 2 is the structural representation of the optical filter in camera lens module in Fig. 1.
Fig. 3 is the light transmitted light spectrogram of the optical filter in camera lens module in Fig. 1.
The main element symbol description
| The |
100 |
| |
10 |
| The |
11 |
| The |
12 |
| |
13 |
| |
20 |
| |
30 |
| |
31 |
| The first transparent conducting |
311 |
| The second transparent conducting |
312 |
| The |
313 |
| |
314 |
| |
315 |
| |
32 |
| The |
33 |
| |
40 |
Following embodiment further illustrates the present invention in connection with above-mentioned accompanying drawing.
Embodiment
As shown in Figure 1, be a kind of camera lens module 100 that embodiment of the present invention provides, it comprises a lens barrel 10, at least one eyeglass 20, an optical filter 30 and an image sensor 40.
Described lens barrel 10 is cylindric, and it comprises that a semi-enclosed thing side 11, one are untight as side 12 and one and described thing side 11 and the accommodation space 13 that all is connected as side 12.
Described at least one eyeglass 20 adopts plastic ejection moulding, and it is housed in described accommodation space 13.In present embodiment, described eyeglass module 100 comprises two eyeglasses 20, these two eyeglasses 20 are successively set in lens barrel 10 along the light incident direction, and the thing side 11 of one of them eyeglass 20 contiguous these lens barrel 10 arranges, and the picture side 12 of another eyeglass 20 contiguous these lens barrels 10 arranges.
Described optical filter 30 is housed in described accommodation space 13, and is arranged on eyeglass 20 a close side as side 12 adjoining with picture side 12.This optical filter 30 is used for filtering through the Infrared of the light of described eyeglass 20.Described optical filter 30 comprises an electrochromic device 31, an anti-reflective film 32 and an infrared filtering film 33.
As shown in Figure 2, described electrochromic device 31 comprises first transparent conducting glass 311, second transparent conducting glass 312 and is successively set on a metallic ion layer 313, a dielectric substrate 314 and a metal oxide layer 315 between described the first transparent conducting glass 311 to second transparent conducting glass 312.Described the first transparent conducting glass 311 is toward thing side 11, and described the second transparent conducting glass 312 is toward picture side 12.Described the first transparent conducting glass 311 is connected with negative pole with the positive pole of a power supply (not shown) respectively with the second transparent conducting glass 312.Described metallic ion layer 313 is for providing the Li of positively charged
+Li, described metal oxide layer 315 is WO
3Film, described dielectric substrate 314 is used for Li
+Be sent to WO
3In film.Be appreciated that described metallic ion layer 313 and metal oxide layer 315 also can become blue metallic ion and metal oxide after combining for other, described metallic ion can be Na
+And Ag
+Deng; Described metal oxide can be TiO
2And Nb
2O
5Deng.
Described anti-reflective film 32 platings are located on the first transparent conducting glass 311, and described infrared filtering film 33 platings are located on the second transparent conducting glass 312.Described anti-reflective film 32 comprises that from this first transparent conducting glass 311 to replacing the 1st to the 4th stacking rete away from these the first transparent conducting glass 311 directions, wherein the material of odd number rete is titania, and the material of even number tunic is silicon dioxide.Described infrared filtering film 33 comprises that from this second transparent conducting glass 312 to replacing the 1st to the 54th stacking rete away from these the second transparent conducting glass 312 directions, wherein the material of odd number rete is titania, and the material of even number rete is silicon dioxide.Described anti-reflective film 32 and described infrared filtering film 33 pass through to regulate the thickness of each rete to realize optical characteristics separately.
Be appreciated that described anti-reflective film 32 also can adopt other material and other film structure to realize antireflecting effect, be not limited to the technical scheme that present embodiment provides; Described anti-reflective film 33 also can adopt other material and other film structure to realize antireflecting effect, be not limited to the technical scheme that present embodiment provides; And described anti-reflective film 32 also can adopt different materials from described infrared filtering film 33, and does not require the material that use is identical.
Described image sensor 40 is used for being projected to its surperficial light and is converted into electrical signals, and it is arranged on the picture end 12 of described lens barrel 10, and with described picture end 12 sealings.Described optical filter 30 is between described eyeglass 20 and image sensor 40, and the second surface 312 of described substrate 31 is toward this image sensor 40.
Described camera lens module 100 before use, first to applying specific voltage on the first transparent conducting glass 311 of described electrochromic device 31 and the second transparent conducting glass 312, as 1.2V, or the appropriate voltage of other scopes, make the first electrically conducting transparent electro-conductive glass 311 and the second transparent conducting glass 312 form an electric field.Li in described metallic ion layer 313
+Enter into the WO of described metal oxide layer 315 through described dielectric substrate 314 under the effect of described electric field
3In film, described WO
3Film is receiving Li
+After can be gradually by the colourless blueness that becomes, thereby make whole electrochromic device 31 present blueness.When cancellation was applied to specific voltage on described electrochromic device 31, described electrochromic device 31 kept presenting blue 600 seconds.Described electrochromic device 31 can absorb the Infrared in visible light after becoming blueness.After the light that is projected to camera lens module 100 passes described eyeglass 20 and is projected to optical filter 30, the Infrared that described electrochromic device 31 absorbs in light, and allow the visible light of 420nm-680nm pass through.Because the electrochromic device 31 in present embodiment adopts absorption filtering Infrared, the reflective filtering Infrared compared to traditional has effectively reduced the visible light that is reflected by optical filter 30, thereby has reduced the generation of dazzle.When described electrochromic device 31 was oppositely applied described specific voltage, described electrochromic device 31 was become colourless gradually by blueness.
In addition, when the voltage on being applied to described electrochromic device 31 increases gradually, described electrochromic device 31 by colourless change to light blue, blue, again to dark blue.Because the blueness of different depth is different with assimilation effect to the transmission effects of light, and the color depth that described Infrared has an optimal absorption effect had a particular range, in order to guarantee the consistance of described camera lens module 100, the manufacturer can before described camera lens module 100 dispatches from the factory, regulate the specific voltage that is applied on described electrochromic device 31.
The light penetration of described anti-reflective film 32 is higher, can make most light penetrations, has further reduced the light that directly reflects through the first transparent conducting glass 311.When being projected to described infrared filtering film 33 after the described electrochromic device 31 of light process, the Infrared in described infrared filtering film 33 filtering light, and allow visible light pass through.Described optical filter 30 has further reduced the generation of the light that reflects through optical filter 30, thereby has effectively reduced the formation of dazzle with the process of the Infrared filtering in light.
As shown in 3, wherein the light transmitted light spectrogram that does not plate the camera lens module 100 of the optical filter 30 of establishing anti-reflective film 32 and infrared filtering film 33 is used in the dotted line representative, realizes representing the light transmitted light spectrogram of the camera lens module 100 of the optical filter 30 that uses plating to be provided with anti-reflective film 32 and infrared filtering film 33.As can be seen from Figure 3, two kinds of camera lens modules 100 all have filtration result preferably to Infrared, and the camera lens module 100 that uses plating to be provided with the optical filter 30 of anti-reflective film 32 and infrared filtering film 33 can further improve the filtration result to Infrared.
Optical filter in camera lens module provided by the invention is electrochromic device, this electrochromic device becomes Infrared can absorb light after blueness in applying voltage, thereby effectively reduce the visible light of following Infrared to be reflected by optical filter, effectively reduced the formation of dazzle.
Be understandable that, for the person of ordinary skill of the art, can make change and the distortion that other various pictures are answered by technical conceive according to the present invention, and all these change and distortion all should belong to the protection domain of claim of the present invention.
Claims (8)
1. camera lens module, it comprises an optical filter; It is characterized in that: this optical filter comprises an electrochromic device, thereby becomes by colourless the Infrared that blueness absorbs the light that is projected to this camera lens module when this electrochromic device is used for applying a specific voltage.
2. camera lens module as claimed in claim 1 is characterized in that: described camera lens module also comprises a lens barrel and is contained at least one eyeglass in this lens barrel; This lens barrel comprises a thing side and a picture side relative with this thing side; This optical filter is arranged on the picture side of this lens barrel compared to this eyeglass.
3. camera lens module as claimed in claim 2, it is characterized in that: described camera lens module also comprises an image sensor, this optical filter is arranged between this eyeglass and this image sensor.
4. camera lens module as claimed in claim 1 is characterized in that: this electrochromic device is become colourless by blueness when also being used for oppositely applying described specific voltage.
5. camera lens module as claimed in claim 1, it is characterized in that: described electrochromic device comprises first transparent conducting glass, second transparent conducting glass and is successively set on a metallic ion layer between described the first transparent conducting glass to the second transparent conducting glass, a dielectric substrate and a metal oxide layer.
6. camera lens module as claimed in claim 5, it is characterized in that: described metallic ion layer is the Li ion, described metal oxide layer is WO
3Film.
7. camera lens module as claimed in claim 5, is characterized in that: plate on described the first transparent conducting glass and be provided with an anti-reflective film.
8. camera lens module as described in claim 1-7 any one, is characterized in that: plate on described electrochromic device and be provided with an infrared filtering film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103710761A CN103123433A (en) | 2011-11-21 | 2011-11-21 | Lens module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103710761A CN103123433A (en) | 2011-11-21 | 2011-11-21 | Lens module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103123433A true CN103123433A (en) | 2013-05-29 |
Family
ID=48454469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103710761A Pending CN103123433A (en) | 2011-11-21 | 2011-11-21 | Lens module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103123433A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104280982A (en) * | 2013-07-11 | 2015-01-14 | 文霞 | Imaging device and filtering switching module thereof |
| WO2017181455A1 (en) * | 2016-04-20 | 2017-10-26 | 吉晟光电（深圳）有限公司 | Intelligent optical filter and manufacturing process and application thereof |
| CN107517340A (en) * | 2017-09-22 | 2017-12-26 | 信利光电股份有限公司 | A kind of camera module and electronic equipment |
| CN110913149A (en) * | 2019-11-04 | 2020-03-24 | Oppo广东移动通信有限公司 | Control method, electronic device, and storage medium |
| CN114424103A (en) * | 2019-09-29 | 2022-04-29 | 华为技术有限公司 | Lens system without optical filter |
| CN114578544A (en) * | 2022-01-25 | 2022-06-03 | 信利光电股份有限公司 | Variable spectrum film element, lens module and equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2651768Y (en) * | 2003-09-11 | 2004-10-27 | 鸿富锦精密工业（深圳）有限公司 | Camera lens |
| CN1766677A (en) * | 2004-10-30 | 2006-05-03 | 鸿富锦精密工业（深圳）有限公司 | Optical filter |
| CN201037891Y (en) * | 2006-11-13 | 2008-03-19 | 陈文雷 | Electronic variable lens |
| CN101192015A (en) * | 2006-11-24 | 2008-06-04 | 鸿富锦精密工业（深圳）有限公司 | Camera shutter device and camera module group suing the shutter device |
| CN101210990A (en) * | 2006-12-29 | 2008-07-02 | 鸿富锦精密工业（深圳）有限公司 | Lens module group and its assembling method |
| CN101556344A (en) * | 2008-04-11 | 2009-10-14 | 鸿富锦精密工业（深圳）有限公司 | Optical element |
-
2011
- 2011-11-21 CN CN2011103710761A patent/CN103123433A/en active Pending
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| CN2651768Y (en) * | 2003-09-11 | 2004-10-27 | 鸿富锦精密工业（深圳）有限公司 | Camera lens |
| CN1766677A (en) * | 2004-10-30 | 2006-05-03 | 鸿富锦精密工业（深圳）有限公司 | Optical filter |
| CN201037891Y (en) * | 2006-11-13 | 2008-03-19 | 陈文雷 | Electronic variable lens |
| CN101192015A (en) * | 2006-11-24 | 2008-06-04 | 鸿富锦精密工业（深圳）有限公司 | Camera shutter device and camera module group suing the shutter device |
| CN101210990A (en) * | 2006-12-29 | 2008-07-02 | 鸿富锦精密工业（深圳）有限公司 | Lens module group and its assembling method |
| CN101556344A (en) * | 2008-04-11 | 2009-10-14 | 鸿富锦精密工业（深圳）有限公司 | Optical element |
Non-Patent Citations (1)
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| 冯博学: "基于WO3/NiOx膜系的固态电致变色器件研究", 《功能材料》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104280982A (en) * | 2013-07-11 | 2015-01-14 | 文霞 | Imaging device and filtering switching module thereof |
| WO2017181455A1 (en) * | 2016-04-20 | 2017-10-26 | 吉晟光电（深圳）有限公司 | Intelligent optical filter and manufacturing process and application thereof |
| CN107305307A (en) * | 2016-04-20 | 2017-10-31 | 吉晟光电（深圳）有限公司 | A kind of intelligent optical filter and its preparation technology and application |
| CN107517340A (en) * | 2017-09-22 | 2017-12-26 | 信利光电股份有限公司 | A kind of camera module and electronic equipment |
| CN107517340B (en) * | 2017-09-22 | 2020-11-27 | 信利光电股份有限公司 | Camera module and electronic equipment |
| CN114424103A (en) * | 2019-09-29 | 2022-04-29 | 华为技术有限公司 | Lens system without optical filter |
| CN110913149A (en) * | 2019-11-04 | 2020-03-24 | Oppo广东移动通信有限公司 | Control method, electronic device, and storage medium |
| CN114578544A (en) * | 2022-01-25 | 2022-06-03 | 信利光电股份有限公司 | Variable spectrum film element, lens module and equipment |
| CN114578544B (en) * | 2022-01-25 | 2024-04-09 | 信利光电股份有限公司 | Variable spectrum film element, lens module and equipment |
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Application publication date: 20130529 |
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| RJ01 | Rejection of invention patent application after publication |