CN206387952U - The big target surface full shot of high definition - Google Patents
The big target surface full shot of high definition Download PDFInfo
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- CN206387952U CN206387952U CN201621453094.9U CN201621453094U CN206387952U CN 206387952 U CN206387952 U CN 206387952U CN 201621453094 U CN201621453094 U CN 201621453094U CN 206387952 U CN206387952 U CN 206387952U
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- lens
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- full shot
- body tube
- target surface
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Abstract
The utility model is related to the big target surface full shot of high definition, it is that negative front lens group, fixed diaphram and focal power are positive rear microscope group that the camera lens, which includes body tube and focal power, the focal range of front lens group is between 15~13.5, the focal range of microscope group is between 5~15 afterwards, front lens group is arranged in order along light incident direction and constituted by the first lens, the second lens, the 3rd lens and the 4th lens, and rear microscope group is arranged in order along light incident direction and constituted by the 5th lens, the 6th lens, the 7th lens and the 8th lens.The camera lens has the advantages that high resolution, moderate, more extensive compared with normal resolution and the application of 4K camera lenses, and the focal length of the camera lens is 2.0mm ± 10%, system monitoring field of view angle up to 190 ° ± 10%, relative aperture D/f ' be 1:2.0 ± 10%, full filed mtf value is applicable more than video camera image planes 1/2.5inch in the case of 100lp/mm more than 0.3..
Description
Technical field
The utility model is related to a kind of big target surface full shot of 5MP high definitions, it is adaptable to protection and monitor field.
Background technology
Domestic security protection market realized double growth in 5 years in the past, up to 500,000,000,000 scales, it is contemplated that remained in a few years from now on
More than 10% fair speed is maintained to increase.Look forward to the future, Third Plenary Session specifies the direction of security protection industry, security protection industry will fill
Benefited new round policy is divided to stimulate, it will be main flow that the updating and upgrading of a product is persistently lifted with permeability；Meanwhile, with resident living water
Flat lifting, the road of the civil nature of domestic security protection tap will gradually be opened.Fish eye lens passes through to introducing barrel distortion, visual angle model
Can be reached by enclosing by 180~270 degree, and can guarantee that the one-to-one relationship of object point and picture point, astronomical, meteorological, forest fire protection with
And there is important application in the field such as national defense and military.In recent years, global security protection video monitoring trade Market competition, international well-known factory
The famous brand name of business all different degrees of entrance China, the competition in front lens market is white-hot.Current producer releases
Fish eye lens have that cost is too high, the more low deficiency of resolution ratio, and waterproof effect is poor.
Utility model content
The purpose of this utility model is to overcome disadvantage mentioned above, and there is provided a kind of big target surface full shot of high definition, camera lens tool
There are high resolution (5MP), moderate cost, it is more extensive compared with normal resolution (MP) and the application of 4K camera lenses, and the camera lens
Focal length be 2.0mm ± 10%, system monitoring field of view angle up to 190 ° ± 10%, relative aperture D/f ' be 1:2.0 ± 10%, it is complete
Visual field mtf value is applicable more than video camera image planes 1/2.5inch in the case of 100lp/mm more than 0.3..
What the utility model was realized in：A kind of big target surface full shot of high definition, it is characterised in that：The camera lens includes master
Lens barrel and the focal power being set in turn in along light incident direction in body tube are front lens group, fixed diaphram and the light focus born
Spend for positive rear microscope group, the focal range of the front lens group between -15~-13.5, the focal range of the rear microscope group 5~
Between 15, the front lens group is arranged in order by the first lens, the second lens, the 3rd lens and the 4th lens along light incident direction
Composition, the rear microscope group is arranged in order group by the 5th lens, the 6th lens, the 7th lens and the 8th lens along light incident direction
Into the gluing unit of the 5th lens and the 6th lens the composition contiguity, the glue of the 7th lens and the 8th lens the composition contiguity
Charge-coupled, first lens are positive selenodont lens, and second lens are positive selenodont lens, and the 3rd lens are the first month of the lunar year
Tooth form lens, the 4th lens are biconvex lens, and the 5th lens are positive selenodont lens, and the 6th lens are biconvex
Lens, the 7th lens are positive selenodont lens, and the 8th lens are biconvex lens, first lens and the second lens
Between the air gap be 2.5~2.7mm, the air gap between second lens and the 3rd lens is 2.1~2.2mm,
The air gap between 3rd lens and the 4th lens is 0.5~0.65mm, between the 4th lens and the 5th lens
The air gap be 1.47~1.6mm, the air gap between the fixed diaphram and rear microscope group is 1.3~1.9mm, described the
The air gap between six lens and the 7th lens is 0.1~0.2mm.
Each lens of the front lens group need to meet following optical condition:
1.7<n1<1.79,52<v1<52.5；
1.7<n2<1.79,52<v2<52.5；
1.7<n3<1.75,56<v3<57.5；
1.7<n4<1.79,25<v4<28；
Wherein n1-n4 is followed successively by the refractive index of first the-the four lens of lens, and v1-v4 is followed successively by first the-the five lens of lens
Abbe number；
Each lens of the rear microscope group need to meet following optical condition:
1.8<n5<1.95,20<v5<21；
1.5<n6<1.6,80<v6<81.7；
1.9<n7<2.0,20<v7<21；
1.6<n8<1.7,55<v8<56；
Wherein n5-n8 is followed successively by the refractive index of the 5th the-the eight lens of lens, and v5-v8 is followed successively by the 5th the-the eight lens of lens
Abbe number.
The full shot also includes preceding trim ring, the first mechanical spacer ring and the second mechanical spacer ring, and first lens are fixed
It is installed in the front end nozzle of body tube, the preceding trim ring is fixedly installed in outside the front end nozzle of body tube and to the first lens
Front position plays position-limiting action；Second lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens, the 7th
Lens and the 8th lens are fixedly installed in body tube body successively along light incident direction；Described first mechanical spacer ring is fixedly mounted
In body tube back cylinder inwall and positioned between the 4th lens and the 5th lens to limit both airspace, described the
Two mechanical spacer rings are fixedly installed in the back cylinder inwall of body tube and are located between the 6th lens and the 7th lens to limit two
The airspace of person.
The full shot also includes being arranged at the sealing ring in the nozzle of body tube front end between the first lens rear face.
The full shot is that 25.55mm, camera lens width are 30.5mm provided with M12 interfaces and lens length.
First lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens, the 7th lens and
Effective transmissivity of 8th lens in 480~656nm spectral ranges is more than 99.5%.
For prior art, the utility model has advantages below：
The big target surface full shot of high definition that the utility model is provided, is a 5MP, ultra-wide angle, all-glass fish eye lens,
It is simple and practical using eight chip eyeglasses, there is high resolution (5MP), moderate cost, compared with normal resolution (MP)
With 4K camera lenses application it is more extensive, and the camera lens focal length be 2.0mm ± 10%, system monitoring field of view angle up to 190 ° ±
10%th, relative aperture D/f ' is 1:2.0 ± 10%, full filed mtf value is applicable video camera in the case of 100lp/mm more than 0.3.
More than image planes 1/2.5inch, it is 450-850nm to be applicable spectral region, and day and night can be achieved.In addition, the camera lens possesses waterproof
Function, also can normally be used in a humidity environment.
Brief description of the drawings
The utility model is described in further detail in conjunction with the embodiments with reference to the accompanying drawings：
Fig. 1 is the structure chart of the big target surface full shot of the utility model high definition；
Fig. 2 is the index path of the big target surface full shot of the utility model high definition.
Symbol description in figure：1st, body tube, the 2, first lens, the 3, second lens, the 4, the 3rd lens, the 5, the 4th lens, 6,
5th lens, the 7, the 6th lens, the 8, the 7th lens, the 9, the 8th lens, the 10, preceding trim ring, 11, first mechanical spacer ring, the 12, second machine
Tool spacer ring, 13, sealing ring, A, front lens group, B, fixed diaphram, C, rear microscope group.
Embodiment
The utility model content is described in detail with reference to Figure of description and specific embodiment：
As shown in Figure 1-2, the big target surface full shot of a kind of high definition provided for the utility model, it is characterised in that：The mirror
It is negative front lens group A, fixation that head, which includes body tube 1 and is set in turn in the focal power in body tube 1 along light incident direction,
Light bar B and focal power are positive rear microscope group C, and the focal range of the front lens group A is between -15~-13.5, the rear microscope group
C focal range is between 5~15, and the front lens group A is by the first lens 2, the second lens 3, the 3rd lens 4 and the 4th lens 5
Composition is arranged in order along light incident direction, the rear microscope group C is saturating by the 5th lens 6, the 6th lens 7, the 7th lens 8 and the 8th
Mirror 9 is arranged in order composition along light incident direction, the gluing unit of the 5th lens 6 and the 6th lens 7 the composition contiguity, and described the
The gluing unit of seven lens 8 and the 8th lens 9 composition contiguity, first lens 2 are positive selenodont lens, second lens 3
For positive selenodont lens, the 3rd lens 4 are positive selenodont lens, and the 4th lens 5 are biconvex lens, and the described 5th is saturating
Mirror 6 is positive selenodont lens, and the 6th lens 7 are biconvex lens, and the 7th lens 8 are positive selenodont lens, described the
Eight lens 9 are that the air gap between biconvex lens, the lens 3 of the first lens 2 and second is 2.5~2.7mm, described second
The air gap between the lens 4 of lens 3 and the 3rd is 2.1~2.2mm, the air between the 3rd lens 4 and the 4th lens 5
Gap is 0.5~0.65mm, and the air gap between the 4th lens 5 and the 5th lens 6 is 1.47~1.6mm, described solid
It is 1.3~1.9mm, the air between the 6th lens 7 and the 7th lens 8 to determine the air gap between light bar B and rear microscope group C
Gap is 0.1~0.2mm.
Each lens of the front lens group A need to meet following optical condition:
1.7<n1<1.79,52<v1<52.5；
1.7<n2<1.79,52<v2<52.5；
1.7<n3<1.75,56<v3<57.5；
1.7<n4<1.79,25<v4<28；
Wherein n1-n4 is followed successively by the refractive index of the lens 5 of the first lens 2- the 4th, and v1-v4 is followed successively by the first lens 2- the 5th
The Abbe number of lens 5；
Each lens of the rear microscope group C need to meet following optical condition:
1.8<n5<1.95,20<v5<21；
1.5<n6<1.6,80<v6<81.7；
1.9<n7<2.0,20<v7<21；
1.6<n8<1.7,55<v8<56；
Wherein n5-n8 is followed successively by the refractive index of the lens 9 of the 5th lens 6- the 8th, and v5-v8 is followed successively by the 5th lens 6- the 8th
The Abbe number of lens 9.
The full shot also includes the mechanical spacer ring 12 of the mechanical spacer ring 11 and second of preceding trim ring 10, first, and described first is saturating
Mirror 2 is fixedly installed in the front end nozzle of body tube 1, and the preceding trim ring 10 is fixedly installed in outside the front end nozzle of body tube 1 simultaneously
Front position to the first lens 2 plays position-limiting action；Second lens 3, the 3rd lens 4, the 4th lens 5, the 5th lens 6,
6th lens 7, the 7th lens 8 and the 8th lens 9 are fixedly installed in the body of body tube 1 successively along light incident direction；Institute
State the first mechanical spacer ring 11 and be fixedly installed in the back cylinder inwall of body tube 1 and positioned between the 4th lens 5 and the 5th lens 6
To limit both airspaces, the described second mechanical spacer ring 12 is fixedly installed in the back cylinder inwall of body tube 1 and is located at
With both airspaces of restriction between 6th lens 7 and the 7th lens 8.Each mechanical spacer ring precision controlling is in ± 0.01mm.
Each mechanical spacer ring dimensional tolerance control is less than 0.02mm, and axiality control is less than 0.02mm, and screw thread pays fit tolerance national standard
(H7/g6), lens barrel fit tolerance national standard (H8/f7).
The full shot also includes being arranged at the sealing in the front end nozzle of body tube 1 between the rear end face of the first lens 2
Circle 13 so that the full shot possesses water-proof function, also can normally use in a humidity environment.
The full shot is that 25.55mm, camera lens width are 30.5mm provided with M12 interfaces and lens length.
First lens 2, the second lens 3, the 3rd lens 4, the 4th lens 5, the 5th lens 6, the 6th lens the 7, the 7th
Effective transmissivity of the lens 9 of lens 8 and the 8th in 480~656nm spectral ranges is more than 99.5%.
The accessible optical index of the utility model is as follows：Focal length：F=2.0mm ± 10%；Relative aperture f/D=1/2.0
± 10%；Angle of visual field 2w >=190 ° ± 10% (image space linear field)；Optical texture length：ΣL
≤31.1mm；It is applicable spectral region：480nm-656nm；Resolution of lens：Imaged with 5MP grades of high-resolution ccd video cameras or CMOS
Machine is adapted to；During spatial frequency 100lp/mm, the MTF of all visual fields is superior to 0.3；Fixed aperture, relative illumination is up to 52%.
Simply the technical solution of the utility model is explained in detail for above-mentioned embodiment, and the utility model is not
Above-described embodiment is only limited only to, every any improvement or replacement according to the utility model principle all should be new in this practicality
Within the protection domain of type.
Claims (6)
1. a kind of big target surface full shot of high definition, it is characterised in that：The camera lens includes body tube (1) and along light incident direction
The focal power being set in turn in body tube (1) is positive rear mirror for negative front lens group (A), fixed diaphram (B) and focal power
Group (C), the focal range of the front lens group (A) is between -15~-13.5, and the focal range of the rear microscope group (C) is 5~15
Between, the front lens group (A) is entered by the first lens (2), the second lens (3), the 3rd lens (4) and the 4th lens (5) along light
Penetrate direction and be arranged in order composition, the rear microscope group (C) is saturating by the 5th lens (6), the 6th lens (7), the 7th lens (8) and the 8th
Mirror (9) is arranged in order the gluing unit of composition, the 5th lens (6) and the 6th lens (7) composition contiguity along light incident direction,
7th lens (8) and the gluing unit of the 8th lens (9) composition contiguity, first lens (2) are positive selenodont lens, institute
The second lens (3) are stated for positive selenodont lens, the 3rd lens (4) are positive selenodont lens, and the 4th lens (5) are double
Convex lens, the 5th lens (6) are positive selenodont lens, and the 6th lens (7) are biconvex lens, the 7th lens
(8) it is positive selenodont lens, the 8th lens (9) are biconvex lens, between first lens (2) and the second lens (3)
The air gap be 2.5~2.7mm, the air gap between second lens (3) and the 3rd lens (4) is 2.1~
2.2mm, the air gap between the 3rd lens (4) and the 4th lens (5) is 0.5~0.65mm, the 4th lens (5)
And the 5th the air gap between lens (6) is 1.47~1.6mm, the air between the fixed diaphram (B) and rear microscope group (C)
Gap is 1.3~1.9mm, and the air gap between the 6th lens (7) and the 7th lens (8) is 0.1~0.2mm.
2. the big target surface full shot of high definition according to claim 1, it is characterised in that：Each of the front lens group (A) is saturating
Mirror need to meet following optical condition:
1.7<n1<1.79,52<v1<52.5；
1.7<n2<1.79,52<v2<52.5；
1.7<n3<1.75,56<v3<57.5；
1.7<n4<1.79,25<v4<28；
Wherein n1-n4 is followed successively by the refractive index of the lens (5) of the first lens (2)-the four, and v1-v4 is followed successively by the first lens (2)-the
The Abbe number of five lens (5)；
Each lens of the rear microscope group (C) need to meet following optical condition:
1.8<n5<1.95,20<v5<21；
1.5<n6<1.6,80<v6<81.7；
1.9<n7<2.0,20<v7<21；
1.6<n8<1.7,55<v8<56；
Wherein n5-n8 is followed successively by the refractive index of the lens (9) of the 5th lens (6)-the eight, and v5-v8 is followed successively by the 5th lens (6)-the
The Abbe number of eight lens (9).
3. according to the big target surface full shot of high definition described in claim 1, it is characterised in that：The full shot also includes preceding trim ring
(10), the first mechanical spacer ring (11) and the second mechanical spacer ring (12), first lens (2) are fixedly installed in body tube (1)
In the nozzle of front end, the preceding trim ring (10) is fixedly installed in outside the front end nozzle of body tube (1) and to the front end of the first lens (2)
Play position-limiting action in position；It is second lens (3), the 3rd lens (4), the 4th lens (5), the 5th lens (6), the described 6th saturating
Mirror (7), the 7th lens (8) and the 8th lens (9) are fixedly installed in body tube (1) along light incident direction in vivo successively；It is described
First mechanical spacer ring (11) is fixedly installed in the back cylinder inwall of body tube (1) and positioned at the 4th lens (5) and the 5th lens
(6) to limit both airspaces between, the described second mechanical spacer ring (12) is fixedly installed in the back cylinder of body tube (1)
Inwall simultaneously is located between the 6th lens (7) and the 7th lens (8) to limit both airspaces.
4. the big target surface full shot of high definition according to claim 3, it is characterised in that：The full shot also includes setting
In the sealing ring (13) in the nozzle of body tube (1) front end between the first lens (2) rear end face.
5. the big target surface full shot of high definition according to claim 1, it is characterised in that：The full shot connects provided with M12
Mouthful and lens length is that 25.55mm, camera lens width are 30.5mm.
6. the big target surface full shot of high definition according to any one of claim 1-5, it is characterised in that：First lens
(2), the second lens (3), the 3rd lens (4), the 4th lens (5), the 5th lens (6), the 6th lens (7), the 7th lens (8) and
Effective transmissivity of 8th lens (9) in 480~656nm spectral ranges is more than 99.5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621453094.9U CN206387952U (en) | 2016-12-28 | 2016-12-28 | The big target surface full shot of high definition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621453094.9U CN206387952U (en) | 2016-12-28 | 2016-12-28 | The big target surface full shot of high definition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206387952U true CN206387952U (en) | 2017-08-08 |
Family
ID=59491057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621453094.9U Active CN206387952U (en) | 2016-12-28 | 2016-12-28 | The big target surface full shot of high definition |
Country Status (1)
| Country | Link |
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| CN (1) | CN206387952U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107656350A (en) * | 2017-11-15 | 2018-02-02 | 中山依瓦塔光学有限公司 | A kind of fish eye lens |
| CN107656351A (en) * | 2017-11-15 | 2018-02-02 | 中山依瓦塔光学有限公司 | A kind of fish eye lens |
| CN110174744A (en) * | 2018-02-19 | 2019-08-27 | 日本电产三协株式会社 | Wide-angle lens |
| CN110426815A (en) * | 2019-07-19 | 2019-11-08 | 杭州有人光电技术有限公司 | A kind of small-sized low F number high definition projection lens |
| CN113960768A (en) * | 2021-11-24 | 2022-01-21 | 江西凤凰光学科技有限公司 | Ultra-wide angle fisheye lens |
-
2016
- 2016-12-28 CN CN201621453094.9U patent/CN206387952U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107656350A (en) * | 2017-11-15 | 2018-02-02 | 中山依瓦塔光学有限公司 | A kind of fish eye lens |
| CN107656351A (en) * | 2017-11-15 | 2018-02-02 | 中山依瓦塔光学有限公司 | A kind of fish eye lens |
| CN110174744A (en) * | 2018-02-19 | 2019-08-27 | 日本电产三协株式会社 | Wide-angle lens |
| US11016275B2 (en) | 2018-02-19 | 2021-05-25 | Nidec Sankyo Corporation | Wide-angle lens |
| CN110174744B (en) * | 2018-02-19 | 2021-11-05 | 日本电产三协株式会社 | Wide-angle lens |
| CN110426815A (en) * | 2019-07-19 | 2019-11-08 | 杭州有人光电技术有限公司 | A kind of small-sized low F number high definition projection lens |
| CN110426815B (en) * | 2019-07-19 | 2021-05-18 | 杭州有人光电技术有限公司 | Small low-F-number high-definition projection lens |
| CN113960768A (en) * | 2021-11-24 | 2022-01-21 | 江西凤凰光学科技有限公司 | Ultra-wide angle fisheye lens |
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