CN104101985A - Full-width camera lens of digital camera - Google Patents
Full-width camera lens of digital camera Download PDFInfo
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- CN104101985A CN104101985A CN201410334567.2A CN201410334567A CN104101985A CN 104101985 A CN104101985 A CN 104101985A CN 201410334567 A CN201410334567 A CN 201410334567A CN 104101985 A CN104101985 A CN 104101985A
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- 239000000463 material Substances 0.000 claims description 44
- 239000006185 dispersion Substances 0.000 claims description 42
- 239000011521 glass Substances 0.000 claims description 29
- 101000782485 Homo sapiens Zinc finger protein 460 Proteins 0.000 claims description 3
- 102100035843 Zinc finger protein 460 Human genes 0.000 claims description 3
- 101000976590 Homo sapiens Zinc finger protein 101 Proteins 0.000 claims description 2
- 102100023576 Zinc finger protein 101 Human genes 0.000 claims description 2
- 239000005304 optical glass Substances 0.000 description 10
- 230000000007 visual effect Effects 0.000 description 8
- 230000003287 optical effect Effects 0.000 description 6
- 230000004075 alteration Effects 0.000 description 4
- 238000003384 imaging method Methods 0.000 description 2
- 241000406668 Loxodonta cyclotis Species 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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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, is that a kind of specification is the digital camera full width camera lens of 35mmf2.0 specifically.
Background technology
In digital camera equipment, the Production design of domestic camera lens exists blank.Not having a is to have independent intellectual property right.But domestic fan is numerous, demand is large.In existing lens design, as Nikon, the guest of Canon must wait the 35mmf2.0 of manufacturer production.Price is high, and cost performance is low, to vast commonness photograph fan, is a white elephant.
Summary of the invention
In view of in above-mentioned prior art, exist shortcoming, the object of this invention is to provide a image quality high, cost performance is high, the full width angle of view is large, has independent intellectual property right, the digital camera full width camera lens that the specification of outward appearance exquisiteness is 35mmf2.0.
Realizing technical scheme of the present invention is: the digital camera full width camera lens that a kind of specification is 35mmf2.0, it comprises 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 is protruding in object space sphere positive lens, comprise the first sphere (convex surface) and the second sphere (concave surface), the second lens are protruding in object space sphere positive lens, comprise the 3rd (convex surface) sphere and the 4th sphere (convex surface), the 3rd lens are recessed to object space sphere negative lens, comprise the 5th sphere (concave surface) and the 6th sphere (convex surface), the 5th sphere and the 4th sphere gummed, the 4th lens are recessed to object space sphere negative lens, comprise the 7th sphere (concave surface) and the 8th sphere ((concave surface), the 5th lens are protruding in object space sphere positive lens, comprise the 9th sphere (convex surface) and the tenth sphere (concave surface), the 9th sphere and the 8th sphere gummed, the 6th lens are recessed to object space sphere negative lens, comprise the 11 sphere (concave surface) and the 12 sphere (convex surface), the 7th lens are protruding in object space sphere positive lens, comprise the 13 sphere (convex surface) and the 14 sphere (convex surface).
First lens to the seven lens are the glass material that the bright Photoelectric Co., Ltd. in Chengdu produces entirely.
The refractive index of first lens is greater than 1.3 and is less than 1.6, and its dispersion is greater than 60 and is less than 75, and preferably adopting model is the glass material of HQK3L, and refractive index and dispersion are respectively 1.48746,70.04.
The refractive index of the second lens is greater than 1.68 and is less than .1.85, and its dispersion is greater than 35 and is less than 50, and preferably adopting model is the glass material of HLAFM3B, and refractive index and dispersion are respectively 1.7440,44.93.
The refractive index of the 3rd lens is greater than 1.55 and is less than 1.7, and its dispersion is greater than 25 and is less than 40, and preferably adopting model is the glass material of HZF8, and refractive index and dispersion are respectively 1.65446,33.65.
The refractive index of the 4th lens is greater than 1.6 and is less than 1.9., and its dispersion is greater than 20 and is less than 35, and preferably adopting model is the glass material of HZF12CDGM, and refractive index and dispersion are respectively 1.76182,26.53.
The refractive index of the 5th lens is greater than 1.65 and is less than 1.85, and its dispersion is greater than 35 and is less than 50, and preferably adopting model is the glass material of HLAF6L, and refractive index and dispersion are respectively 1.75719,47.8.
The refractive index of the 6th lens is greater than 1.75 and is less than 1.9, and its dispersion is greater than 35 and is less than 50, and preferably adopting model is the glass material of HZLAF55C, and refractive index and dispersion are respectively 1.83500,42.97.
The refractive index of the 7th lens is greater than 1.75 and is less than 1.9, and its dispersion is greater than 35 and is less than 50, and preferably adopting model is the glass material of HZLAF55C, and refractive index and dispersion are respectively 1.83500,42.97.
Light field is on object space position, and between the 3rd lens and the 4th lens, it can directly utilize the perforate size of aperture to control light-inletting quantity.
This lens parameters is:
The invention has the advantages that: field angle is large, outward appearance is exquisite.And cost performance is high.Compare prior art, field angle of the present invention reaches 64 degree, can meet wider viewfinder range; Eyeglass all adopts sphere design, revises various aberrations, also can avoid because adopting the aberration of the sphere that spherical mirror produces simplified structure and improve image quality.Eyeglass all adopts glass material, has improved the quality of eyeglass own, the sharpness of camera lens.Improved the usability of camera lens.
Accompanying drawing explanation
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 exposure figure of digital camera full width camera lens of the present invention.
In figure, 1 is 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 6th lens, and 7 is the 7th lens, and 8 is image planes, and 9 is light hurdle face.
Embodiment
Referring to shown in Fig. 1 to Fig. 5, the present invention is that a kind of specification is the digital camera full width camera lens of 35mmf2.0, it comprises first lens (1) successively from object space, the second lens (2), the 3rd lens (3), the 4th lens (4), the 5th lens (5), the 6th lens (6), the 7th lens (7).First lens (1) is protruding in object space sphere positive lens, comprise the first sphere (convex surface) and the second sphere (concave surface), the second lens (2) are protruding in object space sphere positive lens, comprise the 3rd (convex surface) sphere and the 4th sphere (convex surface), the 3rd lens (3) are recessed to object space sphere negative lens, comprise the 5th sphere (concave surface) and the 6th sphere (convex surface), the 5th sphere and the 4th sphere gummed, the 4th lens (4) are recessed to object space sphere negative lens, comprise the 7th sphere (concave surface) and the 8th sphere ((concave surface), the 5th lens (5) are protruding in object space sphere positive lens, comprise the 9th sphere (convex surface) and the tenth sphere (concave surface), the 9th sphere and the 8th sphere gummed, the 6th lens (6) are recessed to object space sphere negative lens, comprise the 11 sphere (concave surface) and the 12 sphere (convex surface), the 7th lens (7) are protruding in object space sphere positive lens, comprise the 13 sphere (convex surface) and the 14 sphere (convex surface).
First lens (1) adopts glass material, the refractive index of optical glass material used and the dispersion formula that need meet the following conditions respectively: it is the glass material of HQK3L that this first lens (1) preferably adopts model, and refractive index and dispersion are respectively 1.48746,70.04.
The second lens (2) adopt glass material, the refractive index of optical glass material used and the dispersion formula that meets the following conditions: it is the glass material of HLAFM3B that the second lens (2) material preferentially adopts model, and refractive index and dispersion are respectively 1.7440,44.93.
The 3rd lens (3) adopt optical glass material, the refractive index of optical glass material used and the dispersion formula that meets the following conditions:, it is the glass material of HZF8 that the 3rd lens (3) material preferentially adopts model, and refractive index and dispersion are respectively 1.65446,33.65.
The 4th lens (4) adopt glass material, the refractive index of optical glass material used and the dispersion formula that need meet the following conditions respectively: it is the glass material of HZF12 that the 4th lens (4) preferably adopt model, and refractive index and dispersion are respectively 1.76182,26.53.
The 5th lens (5) adopt glass material, the refractive index of optical glass material used and the dispersion formula that meets the following conditions: it is the glass material of HLAF6L that the 5th lens (5) material preferentially adopts model, and refractive index and dispersion are respectively 1.75719,47.8.
The 6th lens adopt optical glass material, the refractive index of optical glass material used and the dispersion formula that meets the following conditions: it is the glass material of HZLAF55C that the 6th lens (6) material preferentially adopts model, and refractive index and dispersion are respectively 1.83500,42.97.
The 7th lens (7) adopt optical glass material, the refractive index of optical glass material used and the dispersion formula that meets the following conditions: it is the glass material of HZLAF55C that the 7th lens (7) material preferentially adopts model, and refractive index and dispersion are respectively 1.83500,42.97.
Light hurdle face (9) is positioned on object space position, is positioned between the 3rd lens (3) and the 4th lens (4), and it can directly utilize the perforate size of aperture to control light-inletting quantity.
Consult table 1, the related parameter values of optical system of the present invention, it is successively from first lens (1) to the 7th lens (7), and wherein radius of curvature R is the radius-of-curvature of each face and optical axis O surface of intersection, when curvature is infinitely great, shows that this face is plane.Spacing d is for starting above the distance with respect to below along optical axis direction by object space, the effective clear aperture of maximum that effective aperture is each face, and wherein all numerical value of radius of curvature R and spacing d all be take millimeter as measurement unit.
This lens parameters is:
Effective focal length of the present invention is f=35mm, and relative aperture is F=2, and the full field angle of whole optical system is 64 degree, and its camera lens overall length is 5.86mm, makes it can effectively improve the usability of camera lens.
Refer to Fig. 2, half is maximum image height for the diagonal line of definition CMOS useful area, is made as 1.0 visual fields, for measuring the spatial frequency of different image heights, gets 0.8 visual field, 0.6 visual field, 0 visual field.In the present embodiment CMOS diagonal line half be 21.6mm, i.e. 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, the image height of 0 visual field is 0mm, is 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 greater than negative 0.8mm, are less than 0.8mm, and optical distortion is greater than and-5.0% is less than+and 5.0%, all meet the requirement of imaging performance.The relative exposure at its edge reaches 20%, meets imaging performance requirement.Be appreciated that digital camera full width camera lens of the present invention can improve the usability of the equipment such as camera PDA (personal digital assistant) completely.The advantage of this digital camera full width camera lens is: field angle is large, 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, can meet wider viewfinder range; Eyeglass all adopts sphere design, revises various aberrations, also can avoid because adopting the aberration of the sphere that spherical mirror produces simplified structure and improve image quality.Eyeglass all adopts glass material, has improved the quality of eyeglass own, the sharpness of camera lens.Improved the usability of camera lens.
Claims (10)
1. a digital camera full width camera lens, is characterized in that: it comprises 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 is protruding in object space sphere positive lens, comprise the first sphere (convex surface) and the second sphere (concave surface), the second lens are protruding in object space sphere positive lens, comprise the 3rd (convex surface) sphere and the 4th sphere (convex surface), the 3rd lens are recessed to object space sphere negative lens, comprise the 5th sphere (concave surface) and the 6th sphere (convex surface), the 5th sphere and the 4th sphere gummed, the 4th lens are recessed to object space sphere negative lens, comprise the 7th sphere (concave surface) and the 8th sphere ((concave surface), the 5th lens are protruding in object space sphere positive lens, comprise the 9th sphere (convex surface) and the tenth sphere (concave surface), the 9th sphere and the 8th sphere gummed, the 6th lens are recessed to object space sphere negative lens, comprise the 11 sphere (concave surface) and the 12 sphere (convex surface), the 7th lens are protruding in object space sphere positive lens, comprise the 13 sphere (convex surface) and the 14 sphere (convex surface).
2. digital camera full width camera lens as claimed in claim 1, is characterized in that: the glass material that first lens to the seven lens are produced for the bright Photoelectric Co., Ltd. in Chengdu entirely.
3. digital camera full width camera lens as claimed in claim 2, it is characterized in that: the refractive index of first lens is greater than 1.3 and is less than 1.6, its dispersion is greater than 60 and is less than 75, and preferably adopting model is the glass material of HQK3L, and refractive index and dispersion are respectively 1.48746,70.04.
4. digital camera full width camera lens as claimed in claim 3, it is characterized in that: the refractive index of the second lens is greater than 1.68 and is less than 1.85, its dispersion is greater than 35 and is less than 50, and preferably adopting model is the glass material of HLAFM3B, and refractive index and dispersion are respectively 1.7440,44.93.
5. digital camera full width camera lens as claimed in claim 4, it is characterized in that: the refractive index of the 3rd lens is greater than 1.55 and is less than 1.7, its dispersion is greater than 25 and is less than 40, and preferably adopting model is the glass material of HZF8, and refractive index and dispersion are respectively 1.65446,33.65.
6. digital camera full width camera lens as claimed in claim 5, it is characterized in that: the refractive index of the 4th lens is greater than 1.6 and is less than 1.9., its dispersion is greater than 20 and is less than 35, and preferably adopting model is the glass material of HZF12, and refractive index and dispersion are respectively 1.76182,26.53.
7. digital camera full width camera lens as claimed in claim 6, it is characterized in that: the refractive index of the 5th lens is greater than 1.65 and is less than .1.85, its dispersion is greater than 35 and is less than 50, and preferably adopting model is the glass material of HLAF6L, and refractive index and dispersion are respectively 1.75719,47.8.
8. digital camera full width camera lens as claimed in claim 7, it is characterized in that: the refractive index of the 6th lens is greater than 1.75 and is less than 1.9, its dispersion is greater than 35 and is less than 50, and preferably adopting model is the glass material of HZLAF55C, and refractive index and dispersion are respectively 1.83500,42.97.
9. digital camera full width camera lens as claimed in claim 8, it is characterized in that: the refractive index of the 7th lens is greater than 1.75 and is less than 1.9, its dispersion is greater than 35 and is less than 50, and preferably adopting model is the glass material of HZLAF55C, and refractive index and dispersion are respectively 1.83500,42.97.
10. digital camera full width camera lens as claimed in claim 2, is characterized in that this lens parameters is:
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 |
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| Application Number | Priority Date | Filing Date | Title |
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| 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 |
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| Publication Number | Publication Date |
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| CN104101985A true CN104101985A (en) | 2014-10-15 |
| CN104101985B CN104101985B (en) | 2017-01-18 |
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| CN201410334567.2A Expired - Fee Related CN104101985B (en) | 2014-01-25 | 2014-07-15 | Full-width camera lens of digital camera |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105974561A (en) * | 2016-07-08 | 2016-09-28 | 浙江舜宇光学有限公司 | Wide-angle image photographing lens |
| CN107479172A (en) * | 2017-09-27 | 2017-12-15 | 浙江舜宇光学有限公司 | Imaging lens system group |
| CN108227160A (en) * | 2016-12-22 | 2018-06-29 | 卡尔蔡司股份公司 | For the highest image quality compact camera camera lens of the camera with full width sensor |
| WO2019062136A1 (en) * | 2017-09-27 | 2019-04-04 | 浙江舜宇光学有限公司 | Camera lens group |
| CN110501809A (en) * | 2019-09-20 | 2019-11-26 | 沈阳中一光学科技有限公司 | The digital camera silent frame micro-lens of 1-5 times of zoom |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007316146A (en) * | 2006-05-23 | 2007-12-06 | Nikon Corp | Lens system and optical equipment having the same |
| CN102455483A (en) * | 2010-10-20 | 2012-05-16 | 鸿富锦精密工业（深圳）有限公司 | Projection lens |
| JP2013003174A (en) * | 2011-06-13 | 2013-01-07 | Nikon Corp | Telephoto lens, optical device and manufacturing method of telephoto lens |
-
2014
- 2014-07-15 CN CN201410334567.2A patent/CN104101985B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007316146A (en) * | 2006-05-23 | 2007-12-06 | Nikon Corp | Lens system and optical equipment having the same |
| CN102455483A (en) * | 2010-10-20 | 2012-05-16 | 鸿富锦精密工业（深圳）有限公司 | Projection lens |
| JP2013003174A (en) * | 2011-06-13 | 2013-01-07 | Nikon Corp | Telephoto lens, optical device and manufacturing method of telephoto lens |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105974561A (en) * | 2016-07-08 | 2016-09-28 | 浙江舜宇光学有限公司 | Wide-angle image photographing lens |
| WO2018006592A1 (en) * | 2016-07-08 | 2018-01-11 | 浙江舜宇光学有限公司 | Wide angle photographic lens |
| CN105974561B (en) * | 2016-07-08 | 2018-08-24 | 浙江舜宇光学有限公司 | Wide-angle camera |
| US10705322B2 (en) | 2016-07-08 | 2020-07-07 | Zhejiang Sunny Optics Co., Ltd. | Wide-angle camera lens |
| CN108227160A (en) * | 2016-12-22 | 2018-06-29 | 卡尔蔡司股份公司 | For the highest image quality compact camera camera lens of the camera with full width sensor |
| CN107479172A (en) * | 2017-09-27 | 2017-12-15 | 浙江舜宇光学有限公司 | Imaging lens system group |
| WO2019062136A1 (en) * | 2017-09-27 | 2019-04-04 | 浙江舜宇光学有限公司 | Camera lens group |
| CN110501809A (en) * | 2019-09-20 | 2019-11-26 | 沈阳中一光学科技有限公司 | The digital camera silent frame micro-lens of 1-5 times of zoom |
| 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 |
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| CN104101985B (en) | 2017-01-18 |
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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 |
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