CN104101985B - Full-width camera lens of digital camera - Google Patents
Full-width camera lens of digital camera Download PDFInfo
- Publication number
- CN104101985B CN104101985B CN201410334567.2A CN201410334567A CN104101985B CN 104101985 B CN104101985 B CN 104101985B CN 201410334567 A CN201410334567 A CN 201410334567A CN 104101985 B CN104101985 B CN 104101985B
- Authority
- CN
- China
- Prior art keywords
- lens
- sphere
- dispersion
- refractive index
- digital camera
- 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.)
- Expired - Fee Related
Links
- 239000006185 dispersion Substances 0.000 claims description 35
- 230000000007 visual effect Effects 0.000 claims description 11
- 239000000463 material Substances 0.000 description 22
- 239000011521 glass Substances 0.000 description 11
- 239000005304 optical glass Substances 0.000 description 10
- 230000003287 optical effect Effects 0.000 description 6
- 230000004075 alteration Effects 0.000 description 4
- 238000005286 illumination Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 241000283080 Proboscidea <mammal> Species 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
Landscapes
- Lenses (AREA)
Abstract
The invention discloses a full-width camera lens of a digital camera. The full-width camera lens of the digital camera comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens sequentially from an object side, wherein the first lens is a spherical positive lens protruding towards the object side, the second lens is a spherical positive lens protruding towards the object side, the third lens is a spherical negative lens sinking towards the object side, the fourth lens is a spherical negative lens sinking towards the object side, the fifth lens is a spherical positive lens protruding towards the object side, the sixth lens is a spherical negative lens sinking towards the object side, and the seventh lens is a spherical positive lens protruding towards the object side. The full-width camera lens of the digital camera has a big field angle, a delicate appearance, and high cost performance.
Description
Technical field
The present invention relates to a kind of digital camera lens, specifically a kind of specification is the digital camera full width mirror of 35mmf2.0
Head.
Background technology
In digital camera equipment, there is blank in the production design of domestic camera lens.Not having a is to have independent intellectual property right.
In existing lens design, such as Nikon, Canon guest must wait that the 35mmf2.0 price of manufacturer production is high, and cost performance is low, to vast general
Logical shutterbugs are white elephants.
Content of the invention
In view of the shortcoming present in above-mentioned prior art, it is an object of the invention to provide a image quality is high, sexual valence
Ratio is high, and the full width angle of view is big, has independent intellectual property right, and the exquisite specification of outward appearance is the digital camera full width of 35mmf2.0
Camera lens.
Realization the technical scheme is that a kind of specification be 35mmf2.0 digital camera full width camera lens, its from object space according to
Secondary inclusion the first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens, the 7th lens.First lens
For being convex to object space sphere plus lens, including the first sphere (convex surface) and the second sphere (concave surface), the second lens are to be convex to object space ball
Face plus lens, including the 3rd (convex surface) sphere and the 4th sphere (convex surface), the 3rd lens are to concave towards object space sphere minus lenses, including
5th sphere (concave surface) and the 6th sphere (convex surface), the 5th sphere and the 4th sphere are glued, and the 4th lens are to concave towards object space sphere
Minus lenses, including the 7th sphere (concave surface) and the 8th sphere ((concave surface), the 5th lens are to be convex to object space sphere plus lens, including
9th sphere (convex surface) and the tenth sphere (concave surface), the 9th sphere and the 8th sphere are glued, and the 6th lens are to concave towards object space sphere
Minus lenses, including the 11st sphere (concave surface) and the 12nd sphere (convex surface), the 7th lens are to be convex to object space sphere plus lens, bag
Include the 13rd sphere (convex surface) and the 14th sphere (convex surface).
First lens are the glass materials bought from Chengdu Guangming Photoelectricity Joint-stock Co., Ltd to the 7th lens entirely.
The refractive index of the first lens is more than 1.3 and is less than 1.6, and its dispersion is more than 60 and is less than 75, preferably adopts hqk3l
The glass of cdgm, refractive index and dispersion are respectively 1.48746,70.04.
The refractive index of the second lens is more than 1.68 and is less than 1.85, and its dispersion is more than 35 and is less than 50, preferably adopts
Hlafm3bcdgm, refractive index and dispersion are respectively 1.7440,44.93.
The refractive index of the 3rd lens is more than 1.55 and is less than 1.7, and its dispersion is more than 25 and is less than 40, preferably adopts
Hzf8cdgm, refractive index and dispersion are 1.65446,33.65 respectively.
The refractive index of the 4th lens is more than 1.6 and is less than 1.9, and its dispersion is more than 20 and is less than 35, preferably adopts
The glass of hzf12cdgm, refractive index and dispersion are respectively 1.76182,26.53.
The refractive index of the 5th lens is more than 1.65 and is less than 1.85, and its dispersion is more than 35 and is less than 50, preferably adopts
Hlaf6lcdgm, refractive index and dispersion are respectively 1.75719,47.8.
The refractive index of the 6th lens is more than 1.75 and is less than 1.9, and its dispersion is more than 35 and is less than 50, preferably adopts
Hzlaf55ccdgm, refractive index and dispersion are 1.83500,42.97 respectively.
The refractive index of the 7th lens is more than 1.75 and is less than 1.9, and its dispersion is more than 35 and is less than 50, preferably adopts
Hzlaf55ccdgm, refractive index and dispersion are 1.83500,42.97 respectively.
Light bar is located on object space position, and positioned between the 3rd lens and the 4th lens, it can directly utilize the perforate of aperture
Size controls light-inletting quantity.
This lens parameters is:
It is an advantage of the current invention that: the angle of visual field is big, and outward appearance is exquisite, and cost performance is high.Compare prior art, visual field of the present invention
Angle reaches 64 degree, can meet wider viewfinder range；Eyeglass, all using spherical design, to revise various aberrations, also can avoid because
The aberration of the sphere being produced using coquille, is simplified structure and improves image quality.Eyeglass, all using glass material, improves
Quality of eyeglass itself, the definition of camera lens.Improve the serviceability of camera lens.
Brief description
Fig. 1 is the structural representation of digital camera full width camera lens of the present invention.
Fig. 2 is the mtf figure of digital camera full width camera lens of the present invention.
Fig. 3 is the curvature of field figure of digital camera full width camera lens of the present invention.
Fig. 4 is the optical distortion figure of digital camera full width camera lens of the present invention.
Fig. 5 is the relative illumination figure of digital camera full width camera lens of the present invention.
In figure 1 is the first lens, and 2 is the second lens, and 3 is the 3rd lens, and 4 is the 4th lens, and 5 is the 5th lens, and 6 is the
Six lens, 7 is the 7th lens, and 8 is image planes, and 9 is light bar face.
Specific embodiment
Referring to shown in Fig. 1 to Fig. 5, the present invention is a kind of specification is 35mmf2.0 digital camera full width camera lens, and it is from object space
Include the first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens, the 7th lens successively.First is saturating
Mirror is to be convex to object space sphere plus lens, and including the first sphere (convex surface) and the second sphere (concave surface), the second lens are to be convex to object space
Sphere plus lens, including the 3rd (convex surface) sphere and the 4th sphere (convex surface), the 3rd lens are to concave towards object space sphere minus lenses, bag
Include the 5th sphere (concave surface) and the 6th sphere (convex surface), the 5th sphere and the 4th sphere are glued, and the 4th lens are to concave towards object space ball
Face minus lenses, including the 7th sphere (concave surface), ((concave surface), the 5th lens are to be convex to object space sphere plus lens, bag with the 8th sphere
Include the 9th sphere (convex surface) and the tenth sphere (concave surface), the 9th sphere and the 8th sphere are glued, and the 6th lens are to concave towards object space ball
Face minus lenses, including the 11st sphere (concave surface) and the 12nd sphere (convex surface), the 7th lens are to be convex to object space sphere plus lens,
Including the 13rd sphere (convex surface) and the 14th sphere (convex surface).
First lens adopt glass material, the refractive index of optical glass material used and dispersion need to meet following bar respectively
Part formula: this first lens preferably employs the glass of hqk3l cdgm, refractive index and dispersion are respectively 1.48746,70.04.
Second lens adopt glass material, and the refractive index of optical glass material used and dispersion satisfy the following conditional expression: the
Two lens material preferentially adopt hlafm3b cdgm, refractive index and dispersion to be respectively 1.7440,44.93.
3rd lens adopt optical glass material, the refractive index of optical glass material used and dispersion to meet following condition
Formula:, it is 1.65446,33.65 respectively that the 3rd lens material preferentially adopts hzf8cdgm, refractive index and dispersion.
4th lens adopt glass material, the refractive index of optical glass material used and dispersion need to meet following bar respectively
Part formula: the 4th lens preferably employ the glass of hzf12cdgm, refractive index and dispersion are respectively 1.76182,26.53.
5th lens adopt glass material, and the refractive index of optical glass material used and dispersion satisfy the following conditional expression: the
Five lens material preferentially adopt hlaf6l cdgm, refractive index and dispersion to be respectively 1.75719,47.8.
6th lens adopt optical glass material, the refractive index of optical glass material used and dispersion to meet following condition
Formula: it is 1.83500,42.97 respectively that the 6th lens material preferentially adopts hzlaf55c cdgm, refractive index and dispersion.
7th lens adopt optical glass material, the refractive index of optical glass material used and dispersion to meet following condition
Formula: it is 1.83500,42.97 respectively that the 7th lens material preferentially adopts hzlaf55c cdgm, refractive index and dispersion.
Light bar is located on object space position, and positioned between the 3rd lens and the 4th lens, it can directly utilize the perforate of aperture
Size controls light-inletting quantity.
Refering to table 1, the related parameter values of optical system of the present invention, it is successively from the first lens to the 7th lens, wherein bent
Rate radius r is the radius of curvature in each face and optical axis o surface of intersection, when curvature is infinitely great, shows that this face is plane.Spacing d is edge
Previously with respect to distance below by object space, effective aperture is the maximum effectively clear aperture in each face to optical axis direction, wherein
All numerical value of radius of curvature r and spacing d are all with millimeter as measurement unit.
This lens parameters is:
The effective focal length of the present invention is f=35mm, and relative aperture is f=2, and the full filed angle of whole optical system is 64
Degree, its camera lens overall length is 5.86mm so as to the serviceability of camera lens can effectively be improved.
Refer to Fig. 2, the diagonal half defining cmos effective area is maximum image height, is set to 1.0 visual fields, for measurement not
With the spatial frequency of image height, take 0.8 visual field, 0.6 visual field, 0 visual field.In the present embodiment, cmos diagonal half is 21.6mm, that is,
The image height of 1.0 visual fields, the image height of 0.8 visual field is 21.6*0.8=17.28, the image height 21.6*0.6=12.96 of 0.6 visual field, and 0 regards
The image height of field is 0mm, as cmos central point.
Refer to Fig. 3 to Fig. 5, digital camera full width camera lens meridianal curvature of field and Sagittal field curvature are more than negative 0.8mm, are less than
0.8mm, optical distortion is more than -5.0% and is less than+5.0%, is satisfied by the requirement of imaging performance.The relative illumination at its edge reaches
20%, meet imaging performance requirement.It is appreciated that digital camera full width camera lens of the present invention can improve photographing unit pda completely
The serviceability of equipment such as (personal digital assistant).The advantage of this digital camera full width camera lens is: regards
Rink corner is big, and outward appearance is exquisite.And cost performance is high.Compare prior art, the digital camera full width angle of view of the present invention reaches 64 degree,
Wider viewfinder range can be met；Eyeglass, all using spherical design, to revise various aberrations, also can avoid because using coquille
The aberration of the sphere producing, simplifies structure and improves image quality.Eyeglass all using glass material, improve eyeglass itself
Quality, the definition of camera lens.Improve the serviceability of camera lens.
Claims (8)
1. a kind of digital camera full width camera lens it is characterised in that: it includes the first lens successively from object space, the second lens, the 3rd
Lens, the 4th lens, the 5th lens, the 6th lens, the 7th lens；First lens are to be convex to object space sphere plus lens, including convex
First sphere in face and the second sphere of concave surface, the second lens are to be convex to object space sphere plus lens, including the 3rd sphere of convex surface
With the 4th sphere of convex surface, the 3rd lens are to concave towards object space sphere minus lenses, including the 5th sphere and the 6th of convex surface of concave surface
Sphere, the 5th sphere and the 4th sphere are glued, and the 4th lens are to concave towards object space sphere minus lenses, include concave surface the 7th sphere and
8th sphere of concave surface, the 5th lens are to be convex to object space sphere plus lens, include the tenth ball of the 9th sphere of convex surface and concave surface
Face, the 9th sphere and the 8th sphere are glued, and the 6th lens are to concave towards object space sphere minus lenses, include concave surface the 11st sphere and
12nd sphere of convex surface, the 7th lens are to be convex to object space sphere plus lens, include the of the 13rd sphere of convex surface and convex surface
14 spheres；Effective focal length f=35mm of described camera lens, relative aperture f=2, the image height of 1.0 visual fields is 21.6mm, wherein
Cornerwise half of cmos effective area is maximum image height, is set to 1.0 visual fields.
2. digital camera full width camera lens as claimed in claim 1 it is characterised in that: the refractive index of the first lens is more than 1.3 little
In 1.6, its dispersion is more than 60 and is less than 75.
3. digital camera full width camera lens as claimed in claim 2 it is characterised in that: the refractive index of the second lens is more than 1.68 little
In 1.85, its dispersion is more than 35 and is less than 50.
4. digital camera full width camera lens as claimed in claim 3 it is characterised in that: the refractive index of the 3rd lens is more than 1.55 little
In 1.7, its dispersion is more than 25 and is less than 40.
5. digital camera full width camera lens as claimed in claim 4 it is characterised in that: the refractive index of the 4th lens is more than 1.6 little
In 1.9, its dispersion is more than 20 and is less than 35.
6. digital camera full width camera lens as claimed in claim 5 it is characterised in that: the refractive index of the 5th lens is more than 1.65 little
In 1.85, its dispersion is more than 35 and is less than 50.
7. digital camera full width camera lens as claimed in claim 6 it is characterised in that: the refractive index of the 6th lens is more than 1.75 little
In 1.9, its dispersion is more than 35 and is less than 50.
8. digital camera full width camera lens as claimed in claim 7 it is characterised in that: the refractive index of the 7th lens is more than 1.75 little
In 1.9, its dispersion is more than 35 and is less than 50.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410334567.2A CN104101985B (en) | 2014-01-25 | 2014-07-15 | Full-width camera lens of digital camera |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410036283 | 2014-01-25 | ||
| CN201410036283.5 | 2014-01-25 | ||
| CN2014100362835 | 2014-01-25 | ||
| CN201410334567.2A CN104101985B (en) | 2014-01-25 | 2014-07-15 | Full-width camera lens of digital camera |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104101985A CN104101985A (en) | 2014-10-15 |
| CN104101985B true CN104101985B (en) | 2017-01-18 |
Family
ID=51670265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410334567.2A Expired - Fee Related CN104101985B (en) | 2014-01-25 | 2014-07-15 | Full-width camera lens of digital camera |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104101985B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105974561B (en) * | 2016-07-08 | 2018-08-24 | 浙江舜宇光学有限公司 | Wide-angle camera |
| DE102016125402B4 (en) * | 2016-12-22 | 2018-12-20 | Carl Zeiss Ag | A compact camera lens of the highest image quality for a camera with a full-format sensor, use of such a camera lens and a camera or film camera with such a camera lens |
| WO2019062136A1 (en) * | 2017-09-27 | 2019-04-04 | 浙江舜宇光学有限公司 | Camera lens group |
| CN107479172B (en) * | 2017-09-27 | 2019-03-08 | 浙江舜宇光学有限公司 | Imaging lens system group |
| CN110501809B (en) * | 2019-09-20 | 2021-07-23 | 沈阳中一光学科技有限公司 | Full-frame macro lens of digital camera |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5151068B2 (en) * | 2006-05-23 | 2013-02-27 | 株式会社ニコン | Lens system and optical apparatus having the same |
| CN102455483B (en) * | 2010-10-20 | 2014-07-09 | 鸿富锦精密工业（深圳）有限公司 | Projection lens |
| JP5729152B2 (en) * | 2011-06-13 | 2015-06-03 | 株式会社ニコン | Telephoto lens and optical device |
-
2014
- 2014-07-15 CN CN201410334567.2A patent/CN104101985B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN104101985A (en) | 2014-10-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI585455B (en) | Image capturing lens system, image capturing apparatus and electronic device | |
| TWI522646B (en) | Imaging lens system, image capturing device and electronic device | |
| CN104076486B (en) | Full-width lens of digital camera | |
| TWI451123B (en) | Optical photographing lens system | |
| TWI528049B (en) | Fixed-focus lens | |
| TWI489132B (en) | Imaging lens assembly, imaging device and mobile terminal | |
| CN104101985B (en) | Full-width camera lens of digital camera | |
| TWI612326B (en) | Micro imaging system, imaging apparatus and electronic device | |
| TWI467220B (en) | Imaging lens system | |
| TWI526713B (en) | Image lens system, image capturing device and electronic device | |
| TWI495899B (en) | Image lens assembly | |
| TWI447428B (en) | Imaging lens system | |
| CN206505215U (en) | The big thang-kng small-sized wide-angle lens of 2.8mm | |
| CN103513405A (en) | Single focus optical image capturing system | |
| TWI451121B (en) | Six-piece optical lens system | |
| CN103676100A (en) | Image capturing lens assembly | |
| TWI403755B (en) | Fixed-focus lens | |
| CN103913817A (en) | Ultra-large-aperture full-width lens for digital single-lens reflex camera | |
| TW201641981A (en) | Photographing lens system, image capturing device, and electronic device | |
| CN202583579U (en) | Imaging lens assembly | |
| CN107219609A (en) | 50mmF0.95 digital micro- one camera super large aperture full width camera lens | |
| CN108254881B (en) | Optical lens | |
| TWM529174U (en) | Six-piece wide-angle lens module | |
| TWI504964B (en) | Six-piece optical lens system | |
| CN205581383U (en) | High picture height is like matter optical imaging system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220624 Address after: 110000 No.1, Honghu 1st Street, Shenyang Economic and Technological Development Zone, Liaoning Province Patentee after: SHENYANG ZHONGYI OPTICAL TECHNOLOGY CO.,LTD. Address before: 8-4-2, No. 10, Shaoxing street, Heping District, Shenyang, Liaoning 110001 Patentee before: Xu Zhongyi |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170118 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |