CN105676425A - Digital camera full frame lens device - Google Patents

Digital camera full frame lens device Download PDF

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Publication number
CN105676425A
CN105676425A CN201610156691.3A CN201610156691A CN105676425A CN 105676425 A CN105676425 A CN 105676425A CN 201610156691 A CN201610156691 A CN 201610156691A CN 105676425 A CN105676425 A CN 105676425A
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China
Prior art keywords
lens
spherical surface
dispersion
sphere
refractive index
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CN201610156691.3A
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Chinese (zh)
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CN105676425B (en
Inventor
王晓红
于吉
程立英
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Shenyang Normal University
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Shenyang Normal University
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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00Optical objectives specially designed for the purposes specified below
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00Optical elements characterised by the material of which they are made; Optical coatings for optical elements

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)

Abstract

The invention belongs to the technical field of digital camera lens, and relates to a digital camera full frame lens device, and the device comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens in sequence from the object space; the first lens is a spherical surface plus lens body protruding towards the object space and comprises a first convex spherical surface and a second concave spherical surface, the second lens is a spherical surface plus lens body protruding towards the object space and comprises a third convex spherical surface and a fourth concave spherical surface, the third lens is a spherical surface minus lens body protruding towards the object space and comprises a fifth convex spherical surface and a sixth concave spherical surface, the fourth lens is a spherical surface minus lens body concaving towards the object space and comprises a seventh concave spherical surface and an eighth convex spherical surface, the fifth lens is a spherical surface plus lens body concaving towards the object space and comprises a ninth concave spherical surface and a tenth convex spherical surface, and the sixth lens is a spherical surface plus lens body protruding towards the object space and comprises a eleventh convex spherical surface and a twelfth convex spherical surface. The lens device is a long-focus telescopic lens and has large aperture, fine appearance and high performance cost ratio.

Description

A kind of digital camera silent frame lens assembly
Technical field
The invention belongs to digital camera lens technical field, be specifically related to a kind of digital camera silent frame lens assembly.
Background technology
In digital camera equipment, there is blank in the production design of domestic camera lens, but domestic shutterbugs are numerous, and demand is big, and supporting camera lens price is high, and cost performance is low, is a heavy financial burden to vast commonness photograph fan.
Summary of the invention
In order to solve above-mentioned technical problem, the invention provides a kind of digital camera silent frame lens assembly, model is 50mmF2.0, eyeglass all adopts spherical design to revise various aberration, and all adopt glass material, improve the definition of lens quality and camera lens, be suitable for vast shutterbugs and use.
The present invention is achieved in that a kind of digital camera silent frame lens assembly, includes the first lens, the second lens, the 3rd lens the 4th lens, the 5th lens, the 6th lens successively from thing side, first lens are for being convex to thing side's sphere plus lens, including the first convex surface sphere and the second concave surface sphere, second lens are for being convex to thing side's sphere plus lens, including the 3rd convex surface sphere and the 4th concave surface sphere, 3rd lens are for being convex to thing side's sphere minus lens, including the 5th convex surface sphere and the 6th concave surface sphere, 4th lens are for concaving towards thing side's sphere minus lens, including the 7th concave surface sphere and the 8th convex surface sphere, 5th lens are for concaving towards thing side's sphere plus lens, including the 9th concave surface sphere and the tenth convex surface sphere, 6th lens are for being convex to thing side's sphere plus lens, including the 11st convex surface sphere and the 12nd convex surface sphere.
Further, described first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens and the 6th lens are glass material.
Further, the refractive index of described first lens more than 1.85 less than 1.95, dispersion more than 30 less than 43; First lens preferred material is HZLAF78A-CDGM, and its refractive index is 1.90, dispersion is 37.1.
Further, the refractive index of described second lens more than 1.45 less than 1.55, dispersion more than 70 less than 83;Second lens preferred material is HFK61-CDGM, and its refractive index is 1.497, dispersion is 81.6.
Further, the refractive index of described 3rd lens more than 1.65 less than 1.78, dispersion more than 20 less than 43; 3rd lens preferred material is HZF4-CDGM, and its refractive index is 1.728, dispersion is 28.3.
Further, the refractive index of described 4th lens more than 1.65 less than 1.75, dispersion more than 30 less than 45; 4th lens preferred material is HZF11-CDGM, and its refractive index is 1.699, dispersion is 30.1.
Further, the refractive index of described 5th lens more than 1.75 less than 1.9, dispersion more than 30 less than 43; 5th lens preferred material is HZLAF68B-CDGM, and its refractive index is 1.883, dispersion is 40.8.
Further, the refractive index of the 6th lens more than 1.75 less than 1.9, dispersion more than 30 less than 43; 6th lens preferred material is HZLAF68B-CDGM, and its refractive index is 1.883, dispersion is 40.8.
Further, the parameter of described silent frame lens assembly is:
Compared with prior art, it is an advantage of the current invention that eyeglass all adopts spherical design to revise various aberration, and all adopt glass material, improving the definition of lens quality and camera lens, thus improve the serviceability of camera lens.
Accompanying drawing explanation
Below in conjunction with drawings and the embodiments, the present invention is further detailed explanation:
Fig. 1 is digital camera silent frame lens assembly lens structure schematic diagram provided by the invention;
Fig. 2 is digital camera silent frame lens assembly MTF provided by the invention figure;
Fig. 3 is digital camera silent frame lens assembly curvature of field figure provided by the invention;
Fig. 4 is digital camera silent frame lens assembly optical distortion figure provided by the invention;
Fig. 5 is digital camera silent frame lens assembly relative comparison figure provided by the invention.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearly understand, below in conjunction with embodiment, the present invention is further elaborated. Should be appreciated that specific embodiment described herein is used only for explaining the present invention, be not intended to limit the present invention.
In order to fill up in domestic digital camera market, camera lens produces the blank of design, simultaneously in order to alleviate the financial burden of domestic shutterbugs, the invention provides a kind of model is 50mmF2.0 digital camera silent frame lens assembly, with reference to Fig. 1, the first lens 1 are included successively from thing side, second lens 2, the 3rd lens 3, the 4th lens 4,5th lens 5 and the 6th lens 6, diaphragm 7 is arranged between the 3rd lens 3 and the 4th lens 4, first lens 1 are for being convex to thing side's sphere plus lens, including the first convex surface sphere and the second concave surface sphere, second lens 2 are for being convex to thing side's sphere plus lens, including the 3rd convex surface sphere and the 4th concave surface sphere, 3rd lens 3 are for being convex to thing side's sphere minus lens, including the 5th convex surface sphere and the 6th concave surface sphere, 4th lens 4 are for concaving towards thing side's sphere minus lens, including the 7th concave surface sphere and the 8th convex surface sphere, 5th lens 5 are for concaving towards thing side's sphere plus lens, including the 9th concave surface sphere and the tenth convex surface sphere, 6th lens 6 are for being convex to thing side's sphere plus lens, including the 11st convex surface sphere and the 12nd convex surface sphere.
In order to improve the quality of eyeglass own, as the improvement of technical scheme, the material of all eyeglasses all adopts glass material.
Preferred as technical scheme, the refractive index of the first lens more than 1.85 less than 1.95, dispersion more than 30 less than 43;First lens preferred material is HZLAF78A-CDGM, and its refractive index is 1.90, dispersion is 37.1;
The refractive index of the second lens more than 1.45 less than 1.55, dispersion more than 70 less than 83; Second lens preferred material is HFK61-CDGM, and its refractive index is 1.497, dispersion is 81.6;
The refractive index of the 3rd lens more than 1.65 less than 1.78, dispersion more than 20 less than 43; 3rd lens preferred material is HZF4-CDGM, and its refractive index is 1.728, dispersion is 28.3;
The refractive index of the 4th lens more than 1.65 less than 1.75, dispersion more than 30 less than 45; 4th lens preferred material is HZF11-CDGM, and its refractive index is 1.699, dispersion is 30.1;
The refractive index of the 5th lens more than 1.75 less than 1.9, dispersion more than 30 less than 43; 5th lens preferred material is HZLAF68B-CDGM, and its refractive index is 1.883, dispersion is 40.8;
The refractive index of the 6th lens more than 1.75 less than 1.9, dispersion more than 30 less than 43; 6th lens preferred material is HZLAF68B-CDGM, and its refractive index is 1.883, dispersion is 40.8;
As the improvement of technical scheme, the parameter of silent frame lens assembly is:
50mmF2.0 digital camera silent frame lens assembly effective focal length provided by the invention is f=50mm, and relative aperture is F=2.0, and the full filed angle of whole optical system is 29 degree, and camera lens overall length is 46mm so that it is can effectively improve the serviceability of camera lens.
With reference to Fig. 2, the diagonal half of definition CMOS effective area is maximum image height, is set to 1.0 visual fields, for measuring the spatial frequency of different image height, takes 0.8 visual field, 0.6 visual field, 0 visual field. In the present embodiment, CMOS diagonal half is 21.9mm, i.e. the image height of 1.0 visual fields, and the image height of 0.8 visual field is 21.6*0.7=15.6, the image height 21.6*0.5=10.8 of 0.5 visual field, and the image height of 0 visual field is 0mm, is CMOS central point.
With reference to Fig. 3, Fig. 4 and Fig. 5, digital silent frame camera lens meridianal curvature of field and Sagittal field curvature are more than negative 0.15mm, and less than 0.15mm, optical distortion less than+1.1%, is satisfied by the requirement of imaging performance more than-1.1%. The relative illumination at its edge reaches 30%, meets imaging performance requirement. The advantage of this digital camera silent frame camera lens is in that: aperture super large, and outward appearance is exquisite; And cost performance is high; Comparing prior art, eyeglass all adopts glass material, improves the quality of eyeglass own and the definition of camera lens, improves the serviceability of camera lens.

Claims (9)

1. a digital camera silent frame lens assembly, it is characterised in that described silent frame lens assembly includes the first lens, the second lens, the 3rd lens the 4th lens, the 5th lens, the 6th lens successively from thing side, first lens are for being convex to thing side's sphere plus lens, including the first convex surface sphere and the second concave surface sphere, second lens are for being convex to thing side's sphere plus lens, including the 3rd convex surface sphere and the 4th concave surface sphere, 3rd lens are for being convex to thing side's sphere minus lens, including the 5th convex surface sphere and the 6th concave surface sphere, 4th lens are for concaving towards thing side's sphere minus lens, including the 7th concave surface sphere and the 8th convex surface sphere, 5th lens are for concaving towards thing side's sphere plus lens, including the 9th concave surface sphere and the tenth convex surface sphere, 6th lens are for being convex to thing side's sphere plus lens, including the 11st convex surface sphere and the 12nd convex surface sphere.
2. digital camera silent frame lens assembly according to claim 1, it is characterised in that described first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens and the 6th lens are glass material.
3. digital camera silent frame lens assembly according to claim 1, it is characterised in that the refractive index of described first lens more than 1.85 less than 1.95, dispersion more than 30 less than 43;First lens preferred material is HZLAF78A-CDGM, and its refractive index is 1.90, dispersion is 37.1.
4. digital camera silent frame lens assembly according to claim 1, it is characterised in that the refractive index of described second lens more than 1.45 less than 1.55, dispersion more than 70 less than 83; Second lens preferred material is HFK61-CDGM, and its refractive index is 1.497, dispersion is 81.6.
5. digital camera silent frame lens assembly according to claim 1, it is characterised in that the refractive index of described 3rd lens more than 1.65 less than 1.78, dispersion more than 20 less than 43; 3rd lens preferred material is HZF4-CDGM, and its refractive index is 1.728, dispersion is 28.3.
6. digital camera silent frame lens assembly according to claim 1, it is characterised in that the refractive index of described 4th lens more than 1.65 less than 1.75, dispersion more than 30 less than 45; 4th lens preferred material is HZF11-CDGM, and its refractive index is 1.699, dispersion is 30.1.
7. digital camera silent frame lens assembly according to claim 1, it is characterised in that the refractive index of described 5th lens more than 1.75 less than 1.9, dispersion more than 30 less than 43; 5th lens preferred material is HZLAF68B-CDGM, and its refractive index is 1.883, dispersion is 40.8.
8. digital camera silent frame lens assembly according to claim 1, it is characterised in that the refractive index of described 6th lens more than 1.75 less than 1.9, dispersion more than 30 less than 43; 6th lens preferred material is HZLAF68B-CDGM, and its refractive index is 1.883, dispersion is 40.8.
9. digital camera silent frame lens assembly according to claim 1, it is characterised in that the parameter of described silent frame lens assembly is:
CN201610156691.3A 2016-03-17 2016-03-17 A kind of digital camera silent frame lens assembly Expired - Fee Related CN105676425B (en)

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Cited By (3)

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Publication number Priority date Publication date Assignee Title
CN106526790A (en) * 2016-08-26 2017-03-22 玉晶光电(厦门)有限公司 Optical imaging lens
TWI607238B (en) * 2016-08-22 2017-12-01 大立光電股份有限公司 Optical imaging system, imaging apparatus and electronic device
CN111580244A (en) * 2020-05-22 2020-08-25 玉晶光电(厦门)有限公司 Optical imaging lens

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JP2014153543A (en) * 2013-02-08 2014-08-25 Ricoh Co Ltd Imaging lens and imaging apparatus
JP5712751B2 (en) * 2011-04-11 2015-05-07 株式会社ニコン OPTICAL SYSTEM, IMAGING DEVICE HAVING THE OPTICAL SYSTEM, AND OPTICAL SYSTEM MANUFACTURING METHOD
JP5716995B2 (en) * 2011-04-11 2015-05-13 株式会社ニコン Optical system and imaging apparatus having this optical system
JP5853715B2 (en) * 2012-01-16 2016-02-09 株式会社ニコン OPTICAL SYSTEM, IMAGING DEVICE HAVING THE OPTICAL SYSTEM, AND OPTICAL SYSTEM MANUFACTURING METHOD
JP5966728B2 (en) * 2012-07-30 2016-08-10 リコーイメージング株式会社 Large aperture lens system

Patent Citations (5)

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Publication number Priority date Publication date Assignee Title
JP5712751B2 (en) * 2011-04-11 2015-05-07 株式会社ニコン OPTICAL SYSTEM, IMAGING DEVICE HAVING THE OPTICAL SYSTEM, AND OPTICAL SYSTEM MANUFACTURING METHOD
JP5716995B2 (en) * 2011-04-11 2015-05-13 株式会社ニコン Optical system and imaging apparatus having this optical system
JP5853715B2 (en) * 2012-01-16 2016-02-09 株式会社ニコン OPTICAL SYSTEM, IMAGING DEVICE HAVING THE OPTICAL SYSTEM, AND OPTICAL SYSTEM MANUFACTURING METHOD
JP5966728B2 (en) * 2012-07-30 2016-08-10 リコーイメージング株式会社 Large aperture lens system
JP2014153543A (en) * 2013-02-08 2014-08-25 Ricoh Co Ltd Imaging lens and imaging apparatus

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI607238B (en) * 2016-08-22 2017-12-01 大立光電股份有限公司 Optical imaging system, imaging apparatus and electronic device
CN106526790A (en) * 2016-08-26 2017-03-22 玉晶光电(厦门)有限公司 Optical imaging lens
EP3287826A1 (en) * 2016-08-26 2018-02-28 GeniuS Electronic Optical Co., Ltd. Optical imaging lens
CN106526790B (en) * 2016-08-26 2019-02-22 玉晶光电(厦门)有限公司 Optical imaging lens
US10268019B2 (en) 2016-08-26 2019-04-23 Genius Electronic Optical (Xiamen) Co., Ltd. Optical imaging lens
CN111580244A (en) * 2020-05-22 2020-08-25 玉晶光电(厦门)有限公司 Optical imaging lens
CN111580244B (en) * 2020-05-22 2022-04-05 玉晶光电(厦门)有限公司 Optical imaging lens
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