CN106772947A - Big motion DV camera lenses of practising physiognomy - Google Patents

Big motion DV camera lenses of practising physiognomy Download PDF

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Publication number
CN106772947A
CN106772947A CN201710054189.6A CN201710054189A CN106772947A CN 106772947 A CN106772947 A CN 106772947A CN 201710054189 A CN201710054189 A CN 201710054189A CN 106772947 A CN106772947 A CN 106772947A
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Prior art keywords
lens
big
glass spherical
focal length
camera lenses
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Granted
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CN201710054189.6A
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Chinese (zh)
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CN106772947B (en
Inventor
李泽民
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Dongguan Yutong Optical Technology Co Ltd
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Dongguan Yutong Optical Technology Co Ltd
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
    • G02B13/005—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having spherical lenses only
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/0055—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element
    • G02B13/006—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element at least one element being a compound optical element, e.g. cemented elements

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

Abstract

The invention belongs to field of optical device technology, more particularly to a kind of big motion DV camera lenses of practising physiognomy, including the first lens being arranged in order from the object side to the image side, second lens, 3rd lens, 4th lens, 5th lens, 6th lens and the 7th lens, first lens are convex-concave negative power glass spherical lens, second lens are concave-concave negative power glass spherical lens, 3rd lens are biconvex positive light coke glass spherical lens, 4th lens are biconvex positive light coke glass spherical lens, 5th lens are concave-concave negative power glass spherical lens；6th lens are plano-convex positive light coke glass spherical lens, and the 7th lens are biconvex positive light coke glass spherical lens.Relative to prior art, the present invention uses 7G glass lens (seven sheet glass eyeglasses) structure, has given full play to glass lens easy to process, cemented doublet color difference eliminating and has improved as the advantage of matter, makes camera lens pixel up to 1600W, and, practise physiognomy big advantage big with the depth of field.

Description

Big motion DV camera lenses of practising physiognomy
Technical field
The invention belongs to field of optical device technology, more particularly to a kind of big motion DV camera lenses of practising physiognomy.
Background technology
Motion DV cameras are used in the outdoor activities of people more and more widely, and it is different from traditional camera, because It needs to be used in various adverse circumstances, and a tight shot of only having arranged in pairs or groups, therefore its requirement to camera chip pixel It is very high.Meanwhile, motion DV cameras are also very harsh to camera lens requirement, and traditional monitoring camera pixel ratio is relatively low, and very little of practising physiognomy, And as angle increases, lens edge is very fast as matter decline.
In view of this, it is necessory to provide a kind of big motion DV camera lenses of practising physiognomy, it uses 7G glass lens (seven sheet glass mirrors Piece) structure, give full play to glass lens easy to process, cemented doublet color difference eliminating and improved as the advantage of matter, make camera lens picture Element is up to 1600W and big with the depth of field, big advantage of practising physiognomy.
The content of the invention
It is an object of the invention to：In view of the shortcomings of the prior art, a kind of big motion DV camera lenses of practising physiognomy are provided, it is used 7G glass lens (seven sheet glass eyeglasses) structure, has given full play to glass lens easy to process, cemented doublet color difference eliminating and has carried Height makes camera lens pixel up to 1600W as the advantage of matter, and big with the depth of field, big advantage of practising physiognomy.
In order to achieve the above object, the present invention is adopted the following technical scheme that：
Big motion DV camera lenses of practising physiognomy, including the first lens, the second lens, the 3rd saturating being arranged in order from the object side to the image side Mirror, the 4th lens, the 5th lens, the 6th lens and the 7th lens, first lens are that convex-concave negative power glass sphere is saturating Mirror, second lens are concave-concave negative power glass spherical lens, and the 3rd lens are biconvex positive light coke glass sphere Lens, the 4th lens are biconvex positive light coke glass spherical lens, and the 5th lens are concave-concave negative power glass marble Face lens；6th lens are plano-convex positive light coke glass spherical lens, and the 7th lens are biconvex positive light coke glass Spherical lens；
4th lens and the glued connection of the 5th lens；
The focal length of the 4th lens and the 5th lens meets following condition with the ratio of the focal length of whole camera lens：
0.8 ＜ | f4/f | ＜ 1.0；
0.65 ＜ | f5/f | ＜ 0.8；
Wherein, f is the focal length of whole camera lens；F4 is the focal length of the 4th lens；F5 is the focal length of the 5th lens.
Improved as big a kind of of motion DV camera lenses that practise physiognomy of the invention, Jiao of first lens to the 7th lens Meet following condition away from, refractive index and radius of curvature：
In upper table, " f " is focal length, and " n " is refractive index, and " R " is radius of curvature, and "-" number represents that direction is negative；
Wherein, f1 to f7 corresponds respectively to the focal length of first lens to the 7th lens；N1 to n7 is corresponded to respectively In the refractive index of first lens to the 7th lens；R1, R3, R5, R7, R9, R11 and R13 correspond respectively to described One lens to the one side near object space of the 7th lens radius of curvature, R2, R4, R6, R8, R10, R12 and R14 are right respectively First lens described in Ying Yu to the one side away from object space of the 7th lens radius of curvature.
Improved as big a kind of of motion DV camera lenses that practise physiognomy of the invention, first lens are directly tight with second lens Lean on.
Improved as a kind of of the invention big the of motion DV camera lenses that practise physiognomy, second lens and the 3rd lens by every Circle close-fitting.
Improved as a kind of of the invention big the of motion DV camera lenses that practise physiognomy, the 3rd lens and the 4th lens by every Circle close-fitting.
Improved as big a kind of of motion DV camera lenses that practise physiognomy of the invention, the 5th lens are directly tight with the 6th lens Lean on.
Improved as a kind of of the invention big the of motion DV camera lenses that practise physiognomy, the 6th lens and the 7th lens by every Circle close-fitting.
Relative to prior art, the present invention has the advantage that：
First, the present invention uses 7G glass lens (seven sheet glass eyeglasses) structure, has given full play to glass lens and has been easy to add Work, cemented doublet color difference eliminating are simultaneously improved as the advantage of matter, make camera lens pixel up to 1600W, and big with the depth of field, practise physiognomy big Advantage.
Second, the present invention realizes big practising physiognomy 1/2.3 by reasonable employment glass lens and glue pellet ", image quality is outstanding, Thang-kng F2.5.The camera lens depth of field is big, i.e., the not defocus in the state of slight defocus, and camera lens is in 1 meter of nearly object distance to infinity object distance Can clearly focus on, it is not necessary to focused again, motion DV can be met to the special requirement as matter and environment.
In a word, compact conformation of the present invention, image quality is high, and can guarantee that the picture matter in big field depth.
Brief description of the drawings
Fig. 1 is optical texture schematic diagram of the invention.
Specific embodiment
The present invention and its advantage are described in further detail below with reference to specific embodiment, but, this hair Bright specific embodiment is not limited thereto.
As shown in figure 1, the big motion DV camera lenses of practising physiognomy that the present invention is provided, including first for being arranged in order from the object side to the image side Lens 1, the second lens 2, the 3rd lens 3, the 4th lens 4, the 5th lens 5, the 6th lens 6 and the 7th lens 7, the first lens 1 It is convex-concave negative power glass spherical lens, the second lens 2 are concave-concave negative power glass spherical lens, and the 3rd lens 3 are double Convex positive light coke glass spherical lens, the 4th lens 4 are biconvex positive light coke glass spherical lens, and the 5th lens 5 are negative for concave-concave Focal power glass spherical lens；6th lens 6 are plano-convex positive light coke glass spherical lens, and the 7th lens 7 are that the positive light of biconvex is burnt Degree glass spherical lens；
4th lens 4 and the glued connection of the 5th lens 5；I.e. the present invention is comprising 6 groups of seven tight shots of lens arrangement.
The focal length of the 4th lens 4 and the 5th lens 5 meets following condition with the ratio of the focal length of whole camera lens：
0.8 ＜ | f4/f | ＜ 1.0；
0.65 ＜ | f5/f | ＜ 0.8；
Wherein, f is the focal length of whole camera lens；F4 is the focal length of the 4th lens 4；F5 is the focal length of the 5th lens 5, to realize Pixel high and the effect practised physiognomy greatly.
The focal length of the lens 7 of the first lens 1 to the 7th, refractive index and radius of curvature meet following condition：
In upper table, " f " is focal length, and " n " is refractive index, and " R " is radius of curvature, and "-" number represents that direction is negative；
Wherein, f1 to f7 corresponds respectively to the focal length of the lens 7 of the first lens 1 to the 7th；N1 to n7 corresponds respectively to first The refractive index of the lens 7 of lens 1 to the 7th；R1, R3, R5, R7, R9, R11 and R13 correspond respectively to the lens of the first lens 1 to the 7th The radius of curvature of 7 one side near object space, R2, R4, R6, R8, R10, R12 and R14 correspond respectively to the first lens 1 to the 7th The radius of curvature of the one side away from object space of lens 7.
First lens 1 are directly abutted against with the second lens 2, and the second lens 2 and the 3rd lens 3 are by spacer ring close-fitting, and the 3rd is saturating The lens 4 of mirror 3 and the 4th are directly abutted against by spacer ring close-fitting, the 5th lens 5 with the 6th lens 6, the 6th lens 6 and the 7th lens 7 By spacer ring close-fitting.
Embodiment 1
As shown in figure 1, present embodiments providing a kind of big motion DV camera lenses of practising physiognomy, including it is arranged in order from the object side to the image side The first lens 1, the second lens 2, the 3rd lens 3, the 4th lens 4, the 5th lens 5, the 6th lens 6 and the 7th lens 7, first Lens 1 are convex-concave negative power glass spherical lens, and the second lens 2 are concave-concave negative power glass spherical lens, the 3rd lens 3 It is biconvex positive light coke glass spherical lens, the 4th lens 4 are biconvex positive light coke glass spherical lens, and the 5th lens 5 are double Recessed negative power glass spherical lens；6th lens 6 are plano-convex positive light coke glass spherical lens, the 7th lens 7 be biconvex just Focal power glass spherical lens；4th lens 4 and the glued connection of the 5th lens 5.
The face type of each lens, radius of curvature R, lens thickness, eyeglass spacing and lens index nd meet following bar respectively Part (table 1)：
Face sequence number Face type R D nd
1 Sphere 17.526 0.6 1.68
2 Sphere 3.532 3.132
3 Sphere -9.2 0.42 1.52
4 Sphere 5.2 0.93
5 Sphere 6.374 2.42 1.85
6 Sphere -20.336 2.13
Diaphragm Plane PL 0.01
7 Sphere 7.35 2.132 1.68
9 Sphere -2.6 0.45 1.76
10 Sphere 9.25 0.35
11 Plane PL 1.6 1.68
12 Sphere -7.65 0.523
13 Sphere 13 1.55 1.95
14 Sphere -45.5 1.15
15 Sphere Plane 0.7 1.52
16 Image planes Plane
In table 1, " R " is radius of curvature, and "-" number represents that direction is negative, and " PL " represents plane, and upper table the same face sequence number is existing Refractive index data nd, has data D, data D to represent the thickness at the lens axial line again, the same face sequence number there was only data D and There is no refractive index data nd, data D to represent the lens to the spacing of next lens face.It is saturating that face sequence number 1 and 2 corresponds to first respectively The face towards the face of object space and towards image space of mirror 1；Face sequence number 3 and 4 correspond to respectively the second lens 2 towards the face of object space and court To the face of image space；Face sequence number 5 and 6 corresponds to the face towards the face of object space and towards image space of the 3rd lens 3 respectively；Face sequence number 7 and 8 The face towards the face of object space and towards image space of the 4th lens 4 is corresponded to respectively；Face sequence number 9 and 10 corresponds to the 5th lens 5 respectively Face towards the face of object space and towards image space, face sequence number 11 and 12 correspond to respectively the 6th lens 6 towards the face of object space and direction The face of image space, face sequence number 13 and 14 corresponds to the face towards the face of object space and towards image space of the 7th lens 7 respectively.
In a word, the present invention has the advantage that：
First, the present invention uses 7G glass lens (seven sheet glass eyeglasses) structure, has given full play to glass lens and has been easy to add Work, cemented doublet color difference eliminating are simultaneously improved as the advantage of matter, make camera lens pixel up to 1600W, and big with the depth of field, practise physiognomy big Advantage.
Second, the present invention realizes big practising physiognomy 1/2.3 by reasonable employment glass lens and glue pellet ", image quality is outstanding, Thang-kng F2.5.The camera lens depth of field is big, i.e., the not defocus in the state of slight defocus, and camera lens is in 1 meter of nearly object distance to infinity object distance Can clearly focus on, it is not necessary to focused again, motion DV can be met to the special requirement as matter and environment.
In a word, compact conformation of the present invention, image quality is high, and can guarantee that the picture matter in big field depth.
The announcement and teaching of book according to the above description, those skilled in the art in the invention can also be to above-mentioned embodiment party Formula carries out appropriate change and modification.Therefore, the invention is not limited in specific embodiment disclosed and described above, to this Some modifications and changes of invention should also be as falling into scope of the claims of the invention.Although additionally, this specification In used some specific terms, but these terms are merely for convenience of description, do not constitute any limitation to the present invention.

Claims (7)

1. big practising physiognomy moves DV camera lenses, it is characterised in that：Including the first lens, second saturating being arranged in order from the object side to the image side Mirror, the 3rd lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens, first lens are convex-concave negative power glass Glass spherical lens, second lens are concave-concave negative power glass spherical lens, and the 3rd lens are biconvex positive light coke Glass spherical lens, the 4th lens are biconvex positive light coke glass spherical lens, and the 5th lens are that the negative light of concave-concave is burnt Degree glass spherical lens；6th lens are plano-convex positive light coke glass spherical lens, and the 7th lens are the positive light of biconvex Focal power glass spherical lens；
4th lens and the glued connection of the 5th lens；
The focal length of the 4th lens and the 5th lens meets following condition with the ratio of the focal length of whole camera lens：
0.8 ＜ | f4/f | ＜ 1.0；
0.65 ＜ | f5/f | ＜ 0.8；
Wherein, f is the focal length of whole camera lens；F4 is the focal length of the 4th lens；F5 is the focal length of the 5th lens.
2. big practising physiognomy according to claim 1 moves DV camera lenses, it is characterised in that：First lens are to the described 7th saturating The focal length of mirror, refractive index and radius of curvature meet following condition：
In upper table, " f " is focal length, and " n " is refractive index, and " R " is radius of curvature, and "-" number represents that direction is negative；
Wherein, f1 to f7 corresponds respectively to the focal length of first lens to the 7th lens；N1 to n7 corresponds respectively to institute State the refractive index of the first lens to the 7th lens；It is saturating that R1, R3, R5, R7, R9, R11 and R13 correspond respectively to described first Mirror to the one side near object space of the 7th lens radius of curvature, R2, R4, R6, R8, R10, R12 and R14 are corresponded respectively to First lens to the one side away from object space of the 7th lens radius of curvature.
3. big practising physiognomy according to claim 1 moves DV camera lenses, it is characterised in that：First lens are saturating with described second Mirror is directly abutted against.
4. big practising physiognomy according to claim 1 moves DV camera lenses, it is characterised in that：Second lens are saturating with the described 3rd Mirror passes through spacer ring close-fitting.
5. big practising physiognomy according to claim 1 moves DV camera lenses, it is characterised in that：3rd lens are saturating with the described 4th Mirror passes through spacer ring close-fitting.
6. big practising physiognomy according to claim 1 moves DV camera lenses, it is characterised in that：5th lens are saturating with the described 6th Mirror is directly abutted against.
7. big practising physiognomy according to claim 1 moves DV camera lenses, it is characterised in that：6th lens and described 7th saturating Mirror passes through spacer ring close-fitting.
CN201710054189.6A 2017-01-22 2017-01-22 DV lens with large image plane motion Active CN106772947B (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108873270A (en) * 2018-07-13 2018-11-23 舜宇光学(中山)有限公司 Glass modeling mixing tight shot
CN109557644A (en) * 2019-01-24 2019-04-02 宁波舜宇车载光学技术有限公司 Optical lens and imaging device
CN110045486A (en) * 2019-05-14 2019-07-23 厦门力鼎光电股份有限公司 A kind of optical imaging lens
CN111580252A (en) * 2020-05-22 2020-08-25 玉晶光电(厦门)有限公司 Optical imaging lens
CN111580251A (en) * 2020-05-22 2020-08-25 玉晶光电(厦门)有限公司 Optical imaging lens

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CN202735577U (en) * 2012-08-07 2013-02-13 厦门力鼎光电技术有限公司 Mini type day and night dual-use zoom lens
CN103197409A (en) * 2013-04-01 2013-07-10 东莞市宇瞳光学科技有限公司 Optical compensation zoom lens
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JP2017009973A (en) * 2015-06-26 2017-01-12 京セラ株式会社 Image capturing lens and image capturing device
CN206532025U (en) * 2017-01-22 2017-09-29 东莞市宇瞳光学科技股份有限公司 Big motion DV camera lenses of practising physiognomy

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JPH09218350A (en) * 1996-02-09 1997-08-19 Canon Inc Retrofocus type lens
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Publication number Priority date Publication date Assignee Title
CN108873270A (en) * 2018-07-13 2018-11-23 舜宇光学(中山)有限公司 Glass modeling mixing tight shot
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CN109557644A (en) * 2019-01-24 2019-04-02 宁波舜宇车载光学技术有限公司 Optical lens and imaging device
CN110045486A (en) * 2019-05-14 2019-07-23 厦门力鼎光电股份有限公司 A kind of optical imaging lens
CN110045486B (en) * 2019-05-14 2024-03-29 厦门力鼎光电股份有限公司 Optical imaging lens
CN111580252A (en) * 2020-05-22 2020-08-25 玉晶光电(厦门)有限公司 Optical imaging lens
CN111580251A (en) * 2020-05-22 2020-08-25 玉晶光电(厦门)有限公司 Optical imaging lens
CN111580251B (en) * 2020-05-22 2022-02-08 玉晶光电(厦门)有限公司 Optical imaging lens

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