CN109239826A - A kind of lens assembly improving skin image capture precision - Google Patents
A kind of lens assembly improving skin image capture precision Download PDFInfo
- Publication number
- CN109239826A CN109239826A CN201811298810.4A CN201811298810A CN109239826A CN 109239826 A CN109239826 A CN 109239826A CN 201811298810 A CN201811298810 A CN 201811298810A CN 109239826 A CN109239826 A CN 109239826A
- Authority
- CN
- China
- Prior art keywords
- camera lens
- optical filter
- dispensing
- image capture
- skin image
- 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
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/025—Mountings, adjusting means, or light-tight connections, for optical elements for lenses using glue
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Blocking Light For Cameras (AREA)
Abstract
The invention discloses a kind of lens assemblies for improving skin image capture precision, including camera lens, the through-hole that light passes through is provided in the middle part of camera lens, one optical filter is fixed on camera lens by mode for dispensing glue and covers through-hole, the shape of its optical filter is polygon, positioned at the angle of polygon position at dispensing, dispensing diameter is 1-1.1mm.Present invention optimizes the gluing process of the structure of camera lens optical filter and optical filter, reduce the shielding rate of camera lens optical path.
Description
Technical field
The present invention relates to skins microcosmic, Image Acquisition, optical lens technology field, especially a kind of raising skin image are adopted
Collect the lens assembly of precision.
Background technique
According to lens imaging principle it is found that there are any small blocking to cause greatly to image in camera lens optical path
Influence.And in micro image acquisition field, camera lens uses amplification characteristic, so the feelings of the image in acquisition zonule
Under condition, the amplification characteristic of camera lens produces the influence directly proportional to camera lens multiple to the minor change of optical path.Assuming that camera lens is not put
In the case where big, the variation of optical path generates the influence that coefficient is 1 to image, but there are 50 times of amplifications for camera lens, then error
50 times will be amplified.
Currently, a kind of mode that skin micro-analysis uses is acquisition skin micro image, passes through software logic algorithm point
Situations such as analysing skin follicle situation, dermatoglyph, skin complexion, acne, red capillary.In order to guarantee the reliable of network analysis
Property, what is taken is quantitative analysis method, i.e., the skin image area needs acquired every time remain unchanged, and subsequent image analysis exists
The relevant data of analyzing skin are carried out under the skin image size of fixed size；In addition, the clarity of microcosmic skin image is got over
Height is analyzed skin image more advantageous；And the bright-dark degree in the microcosmic resulting each region of image of acquisition is consistent, can also improve
Skin analysis precision.
But current skin image capture lens assembly, clarity is not high, and optical filter is when dispensing is fixed
Time, which is be easy to cause, blocks optical path, the presence at the dark angle of image is caused, so that acquired image bright-dark degree is inconsistent.
As shown in Figure 1, the structure for prior art optical filter and its glue-dispensing fixing structure on camera lens, existing optical filtering
Using circular configuration, position for dispensing glue is located on four positions of optical filter piece, for dispensing glue straight due to technique and restriction
Diameter is 1.4mm, and in situation for dispensing glue, glue is easy to block camera lens optical path, and leading to image quadrangle, there are shades.
Summary of the invention
The technical problem to be solved by the present invention is in view of the above shortcomings of the prior art, provide a kind of raising skin image to adopt
Collect the lens assembly of precision.
In order to solve the above technical problems, the technical solution used in the present invention is: a kind of raising skin image capture precision
Lens assembly, including camera lens is provided with the through-hole that light passes through, an optical filter is fixed on by mode for dispensing glue in the middle part of camera lens
It is covered on camera lens and by through-hole, the shape of the optical filter is polygon, and the angle position of polygon, dispensing diameter are located at dispensing
For 1-1.1mm.
In above-mentioned technical proposal, the shape of the optical filter is square.
In above-mentioned technical proposal, the technical parameter of the optical filter: central wavelength is 360 ± 2nm, and half-peak band width is
360 nm of 25nm, peak transmittance T > 60% at, cut-off wave band are 200nm-1100nm, and cut-off depth is OD3-OD6-C,
Clear aperture is that film layer area coverage is greater than 98%.
The beneficial effects of the present invention are:
1, optimize the structure of camera lens optical filter and the gluing process of optical filter, reduce the shielding rate of camera lens optical path.
2, optimize optical filter, improve Image Acquisition clarity.
Detailed description of the invention
Fig. 1 is the fixed structure schematic diagram of prior art camera lens and optical filter；
Fig. 2 is the fixed structure schematic diagram of camera lens and optical filter of the present invention.
In figure, 1, camera lens；2, through-hole；3, optical filter；5, dispensing；6, angle position.
Specific embodiment
The invention will now be described in further detail with reference to the accompanying drawings.
As shown in Fig. 2, a kind of lens assembly of raising skin image capture precision of the utility model, including camera lens, in camera lens
Middle part is provided with the through-hole that light passes through, and an optical filter is fixed on camera lens by mode for dispensing glue and covers through-hole, described in
The shape of optical filter is polygon, and the angle position of polygon is located at dispensing, and dispensing diameter is 1-1.1mm.Institute in the present embodiment
The shape for stating optical filter is square, and tool is there are four angle, just corresponding dispensing everywhere, and carrying out dispensings at this four angles can be with
It avoids blocking camera lens optical path, eliminates image shade.Realize image shielding rate less than 1%(, that is, image shadow region less than 1%).
Wherein, the optical filter uses ultra thin optical glass, and light transmittance, finish, flatness are good；Film layer firmness is good,
Wavelength is quasi-, and stability waits by force various features；Film layer compactness is good, narrow bandwidth, high cutoff rate, high transparency；Its technical parameter:
Central wavelength is 360 ± 2nm, half-peak band width 25nm, 360 nm of the at of peak transmittance T > 60%, and cut-off wave band is
200nm-1100nm, cut-off depth are OD3-OD6-C, and clear aperture (mm) is that film layer area coverage is greater than 98%.This technology parameter
Optical filter be a kind of narrow band filter, be especially suitable for selection 360nm-365nm wave band narrow band filter.The narrow band filter
The light of certain wave band is specified to pass through, the light cut-off other than light passing wave band.Its optical index is mainly central wavelength (CWL), half-band width
(FWHM), it is divided into narrowband and broadband.The light wave band or color of transmission are purer, and the recognition capability of instrument is stronger.Optimize optical filter
Image definition is improved 3%-5% on year-on-year basis by parameter.
The above embodiments are merely illustrative and not limiting of the invention, therefore all according to described in present patent application range
The equivalent change or modification done of method, be included in the scope of the patent application of the present invention.
Claims (3)
1. a kind of lens assembly for improving skin image capture precision, including camera lens, be provided in the middle part of camera lens light pass through it is logical
Hole, an optical filter are fixed on camera lens by mode for dispensing glue and cover through-hole, it is characterised in that: the shape of the optical filter
For polygon, the angle position of polygon is located at dispensing, dispensing diameter is 1-1.1mm.
2. a kind of lens assembly for improving skin image capture precision according to claim 1, it is characterised in that: the filter
The shape of mating plate is square.
3. a kind of lens assembly for improving skin image capture precision according to claim 1, it is characterised in that: the filter
The technical parameter of mating plate: central wavelength is 360 ± 2nm, half-peak band width 25nm, the at of peak transmittance T > 60% 360
Nm, cut-off wave band are 200nm-1100nm, and cut-off depth is OD3-OD6-C, and clear aperture is that film layer area coverage is greater than 98%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811298810.4A CN109239826A (en) | 2018-11-02 | 2018-11-02 | A kind of lens assembly improving skin image capture precision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811298810.4A CN109239826A (en) | 2018-11-02 | 2018-11-02 | A kind of lens assembly improving skin image capture precision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109239826A true CN109239826A (en) | 2019-01-18 |
Family
ID=65080280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811298810.4A Pending CN109239826A (en) | 2018-11-02 | 2018-11-02 | A kind of lens assembly improving skin image capture precision |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109239826A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102073113A (en) * | 2009-11-25 | 2011-05-25 | 鸿富锦精密工业（深圳）有限公司 | Lens module |
| CN102262275A (en) * | 2010-05-28 | 2011-11-30 | 鸿富锦精密工业（深圳）有限公司 | Imaging module and method for assembling the same |
| CN203872257U (en) * | 2014-04-28 | 2014-10-08 | 浙江宇视科技有限公司 | Lens seat with internally-arranged light filtering sheet and monitoring camera using lens seat |
| CN204334762U (en) * | 2015-01-24 | 2015-05-13 | 江苏金成光电科技有限公司 | A kind of mobile phone camera module standard header |
| CN204598139U (en) * | 2015-05-04 | 2015-08-26 | 歌尔声学股份有限公司 | A kind of camera module bracket and camera module |
| CN208888404U (en) * | 2018-11-02 | 2019-05-21 | 广州市皓品信息科技有限公司 | A kind of lens assembly improving skin image capture precision |
-
2018
- 2018-11-02 CN CN201811298810.4A patent/CN109239826A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102073113A (en) * | 2009-11-25 | 2011-05-25 | 鸿富锦精密工业（深圳）有限公司 | Lens module |
| CN102262275A (en) * | 2010-05-28 | 2011-11-30 | 鸿富锦精密工业（深圳）有限公司 | Imaging module and method for assembling the same |
| CN203872257U (en) * | 2014-04-28 | 2014-10-08 | 浙江宇视科技有限公司 | Lens seat with internally-arranged light filtering sheet and monitoring camera using lens seat |
| CN204334762U (en) * | 2015-01-24 | 2015-05-13 | 江苏金成光电科技有限公司 | A kind of mobile phone camera module standard header |
| CN204598139U (en) * | 2015-05-04 | 2015-08-26 | 歌尔声学股份有限公司 | A kind of camera module bracket and camera module |
| CN208888404U (en) * | 2018-11-02 | 2019-05-21 | 广州市皓品信息科技有限公司 | A kind of lens assembly improving skin image capture precision |
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