CN104977695B - Big visual field linear deformation minisize mould pick-up lens - Google Patents
Big visual field linear deformation minisize mould pick-up lens Download PDFInfo
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- CN104977695B CN104977695B CN201510407744.XA CN201510407744A CN104977695B CN 104977695 B CN104977695 B CN 104977695B CN 201510407744 A CN201510407744 A CN 201510407744A CN 104977695 B CN104977695 B CN 104977695B
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- lens
- spacer ring
- visual field
- negative selenodont
- biconvex lens
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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
- G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/04—Reversed telephoto objectives
Abstract
The present invention relates to a kind of big visual field linear deformation minisize mould pick-up lens,Including the optical system being arranged in primary mirror bucket,The optical system is the preceding group of A set gradually along light incident direction,Grating and rear group B,Group A includes setting gradually negative selenodont lens A 1 along light incident direction before described,Negative selenodont lens A 2,Group B includes setting gradually biconvex lens B 1 along light incident direction after described,The gluing unit A of biconvex lens B 2 and negative selenodont lens B 3 contiguity,The gluing unit B of biconvex lens B 4 and negative selenodont lens B 5 contiguity,The camera lens is while possessing chromatic sensitivity,Ensure the fine definition and ultra-wide angle of image in the space of small range,Simultaneously realize bugeye lens linearly low distortion the characteristics of,In insufficient light or in the case of night,Also it can guarantee that the high-quality of image,Reach more than million pixels.
Description
Technical field
The present invention relates to a kind of big visual field linear deformation minisize mould pick-up lens.
Background technology
As the fast development of science and technology, people's awareness of safety gradually step up, constantly entering for security protection market is promoted
Step, therefore pursuit of the market for higher resolution, greater angle, low distortion camera lens is also just ready to appear.Although however, market
Upper morning has various wide-angle tight shots to be applied in monitoring system.But their overall optical performance index is generally inclined
It is low, although some can reach the requirement of high definition, can monitor small space, high-resolution wide-angle requirement in still have many defects, no
Can have the advantages that ultra-wide angle, high-resolution, day and night object lens of large relative aperture, confocal and low distortion simultaneously.
The content of the invention
The purpose of the present invention is to be directed to above weak point, there is provided a kind of big visual field linear deformation minisize mould camera lens
Head, the camera lens ensure the fine definition and ultra-wide angle of image while possessing chromatic sensitivity, in the space of small range, simultaneously
Realize bugeye lens linearly low distortion the characteristics of.In addition, in insufficient light or in the case of night, the height of image also can guarantee that
Quality, reach more than million pixels.
Scheme is a kind of big visual field linear deformation minisize mould pick-up lens used by the present invention solves technical problem,
Including the optical system being arranged in primary mirror bucket, the optical system is preceding group of A, the grating set gradually along light incident direction
With rear group of B, A is organized before described to be included setting gradually negative selenodont lens A-1, negative selenodont lens A-2, institute along light incident direction
Stating rear group of B includes setting gradually biconvex lens B-1, biconvex lens B-2 and negative selenodont lens B-3 contiguity along light incident direction
Gluing unit A, biconvex lens B-4 and negative selenodont lens B-5 contiguity gluing unit B.
Further, the airspace between the preceding group A and rear group B is：5.43mm.
Further, the airspace of negative the selenodont lens A-1 and negative selenodont lens A-2 are：2.15mm institute
Stating lens biconvex lens B-1 and biconvex lens B-2 airspace is：2.04mm, the negative selenodont lens B-3 and lenticular
Mirror B-4 airspace is：0.1mm.
Further, described group of A focal length is -3.24mm, and the rear focal length for organizing B is 5.69mm.
Further, the first spacer ring, the biconvex are provided between the negative selenodont lens A-2 and biconvex lens B-1
The second spacer ring is provided between lens B-1 and biconvex lens B-2, is set between the negative selenodont lens B-3 and biconvex lens B-4
It is equipped with the 3rd spacer ring.
Further, first spacer ring is delustring line spacer ring, second spacer ring, the 3rd spacer ring be staged every
Circle.
Further, the preceding group A and rear group B use low dispersion, the optical glass material of high refraction.
Further, the primary mirror bucket is that high-precision mold injection forms.
Further, the primary mirror bucket is internally provided with some positioning boss for being used to position each component of optical system.
Compared with prior art, the present invention has following beneficial effect：
（1）The retrofocus type structure separated using positive negative power, preceding group of A focal length f=- 3.24mm, the rear focal length f for organizing B
=5.69mm, after the combination of two constituent elements, the rear leading role of camera lens is set to move forward, rear cut-off distance I≤2.35f of camera lens.
（2）Preceding group of A of camera lens two negative selenodont lens all assume responsibility for very big light focus from the glass of high index of refraction
Degree, make the skew ray of wide-angle, after preceding group, quick " convergence ', reduce with the slanted angle of optical axis, it is main after B refractions are organized after
The angle of light and optical axis reduces, and camera lens is realized excellent aberration correction, and make the uniform-illumination of image planes.
（3）Lenticular lens B-1 is placed behind the light bar of camera lens, the aberration that it carrys out corrective lens is effectively utilized, makes
The high resolution of camera lens is up to 3,000,000 pixels.
Brief description of the drawings
Patent of the present invention is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is the optical design configurations schematic diagram of the present invention；
Fig. 2 is the structural representation of the present invention；
Fig. 3 is the MTF curve on daytime of the invention that computer aided design software provides；
Fig. 4 is the night vision MTF curve of the invention that computer aided design software provides.
In figure：
1- bears selenodont lens A-1；2- bears selenodont lens A-2；3- gratings；4- biconvex lens B-1；5- biconvex lens B-
2；6- bears selenodont lens B-3；7- biconvex lens B-4；8- bears selenodont lens B-5；9- image planes；10- body tubes；11- first
Spacer ring；The spacer rings of 12- second；The spacer rings of 13- the 3rd.
The present invention is further described with reference to the accompanying drawings and detailed description.
As Figure 1-4, a kind of big visual field linear deformation minisize mould pick-up lens, including be arranged in primary mirror bucket 10
Optical system, the optical system be set gradually along light incident direction preceding group of A, grating 3 and after organize B, it is described before group A bags
Include along light incident direction and set gradually negative selenodont lens A-1, negative selenodont lens A-2, organizing B after described includes entering along light
Penetrate direction and set gradually biconvex lens B-1, biconvex lens B-2 and gluing unit A, the biconvex lens of negative selenodont lens B-3 contiguity
The gluing unit B of B-4 and negative selenodont lens B-5 contiguity.
In the present embodiment, the airspace between the preceding group A and rear group B is：5.43mm.
In the present embodiment, the airspace of negative the selenodont lens A-1 and negative selenodont lens A-2 are：
2.15mm, the lens biconvex lens B-1 and biconvex lens B-2 airspace are：2.04mm, the negative selenodont lens B-
3 are with biconvex lens B-4 airspace：0.1mm.
In the present embodiment, described group of A focal length is -3.24mm, and the rear focal length for organizing B is 5.69mm.
In the present embodiment, the first spacer ring 11, institute are provided between the negative selenodont lens A-2 and biconvex lens B-1
State and the second spacer ring 12 is provided between biconvex lens B-1 and biconvex lens B-2, the negative selenodont lens B-3 and biconvex lens
The 3rd spacer ring 13 is provided between B-4.
In the present embodiment, in order to eliminate the veiling glare of camera lens, ensure that the airspace between eyeglass is assembled with optical axis, disappear
Except halation, ensure the stability of structure, first spacer ring is delustring line spacer ring, and second spacer ring, the 3rd spacer ring are rank
Ladder type spacer ring.
In the present embodiment, the preceding group A and rear group B use low dispersion, the optical glass material of high refraction, by setting
Meter and optimization correct the various aberrations of optical lens, camera lens is realized ultra-wide angle, high-resolution, object lens of large relative aperture, day and night altogether
The advantages that burnt, linear low distortion.
In the present embodiment, the primary mirror bucket is that high-precision mold injection forms, make its endoporus coordinate tight ness rating to reach with eyeglass
To eyeglass installation requirement, while in order to ensure the uniformity of axiality and all lens light axis between each eyeglass, in body tube
Interior each ladder has strict size and status requirement, and interface uses M12 × 0.5-4h thread management and control, commercially meets general
Property.And the selection of the component materials need to not only need certain intensity, good injection characteristic, must also through various experiments
From -20 DEG C to 60 DEG C, impact variation without out of focus, enables the camera lens various severe to the temperature of living that must meet that the camera lens is amenable to
Under the conditions of use.
In the present embodiment, in order to preferably eliminate the invalid light such as veiling glare and halation, while the thang-kng of eyeglass is ensured
Assembled with optical axis, the primary mirror bucket is internally provided with some positioning boss for being used to position each component of optical system.
In the present embodiment, it is 480 to visible spectral regions on the premise of the angle of visual field is ultra-wide angle during optical design
~850nm carries out aberration correction and balance, camera lens is all had excellent sensitivity in visible spectral regions, realizes day and night altogether
Jiao, i.e. wide spectrum are confocal.Camera lens can not only be in the daytime illumination condition under blur-free imaging, moreover it is possible in the extremely low environment of night illumination
Under, using infrared light filling, reach clearly million picture matter.
In the present embodiment, the camera lens will be scanned with the characteristic for camera lens of taking photo by plane in optical design with wherein, that is, surpassed
Under conditions of wide-angle, realize linear low distortion, the marginal distortion of image be effectively controlled within -0.5% so that center and
The magnifying power of edge imaging is consistent, realizes center and the edge isometric deformation of image, exists without traditional wide-angle lens
Nonlinear distortion lower edge image is by the phenomenon of compression.
In the present embodiment, from Fig. 3 and Fig. 4 MTF curve, camera lens camera lens in the case of day and night
Imaging can reach three mega pixels.
In the present embodiment, the camera lens has reached following optical index：Focal length：f′=2.1mm；Relative aperture: F=
1.8；The angle of visual field：2W >=160 ° (image space to the η ' of visual field 2 >=Ф 6mm)；Linear distortion： fθ≤-0.5%；Resolution ratio：Can be with 300
Ten thousand pixel high-resolution CCD or cmos camera adaptation adaptation；Total length of light path ∑≤23.77mm, optics rear cut-off distance I ' >=
5.76mm；It is applicable spectral line scope：480nm~850nm.
The object, technical solutions and advantages of the present invention are further described by above-listed preferred embodiment, are answered
Understand, the foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.
Claims (6)
- A kind of 1. big visual field linear deformation minisize mould pick-up lens, it is characterised in that：Including the optics being arranged in primary mirror bucket System, the optical system be set gradually along light incident direction preceding group of A, grating and after organize B, it is described before group A include edge Light incident direction sets gradually negative selenodont lens A-1, negative selenodont lens A-2, and organizing B after described is included along light incidence side To set gradually gluing unit A, the biconvex lens B-4 of biconvex lens B-1, biconvex lens B-2 and negative selenodont lens B-3 contiguity with The gluing unit B of negative selenodont lens B-5 contiguity, the airspace organized before described between A and rear group B are：5.43mm, the negative moon Tooth form lens A-1 and negative selenodont lens A-2 airspace are：2.15mm, the biconvex lens B-1 and biconvex lens B-2 Airspace be：2.04mm, the airspace of the negative selenodont lens B-3 and biconvex lens B-4 are：0.1mm, before described Group A focal length is -3.24mm, and the rear focal length for organizing B is 5.69mm.
- 2. the big visual field linear deformation minisize mould pick-up lens according to claims 1, it is characterised in that：The negative moon The first spacer ring is provided between tooth form lens A-2 and biconvex lens B-1, is set between the biconvex lens B-1 and biconvex lens B-2 The second spacer ring is equipped with, the 3rd spacer ring is provided between the negative selenodont lens B-3 and biconvex lens B-4.
- 3. the big visual field linear deformation minisize mould pick-up lens according to claims 2, it is characterised in that：Described first Spacer ring is delustring line spacer ring, and second spacer ring, the 3rd spacer ring are staged spacer ring.
- 4. the big visual field linear deformation minisize mould pick-up lens according to claims 1, it is characterised in that：Described preceding group A and rear group B are using the optical glass material of low dispersion, high refraction.
- 5. the big visual field linear deformation minisize mould pick-up lens according to claims 1, it is characterised in that：The primary mirror Bucket forms for high-precision mold injection.
- 6. the big visual field linear deformation minisize mould pick-up lens according to claims 1, it is characterised in that：The primary mirror Bucket is internally provided with some positioning boss for being used to position each component of optical system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510407744.XA CN104977695B (en) | 2015-07-14 | 2015-07-14 | Big visual field linear deformation minisize mould pick-up lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510407744.XA CN104977695B (en) | 2015-07-14 | 2015-07-14 | Big visual field linear deformation minisize mould pick-up lens |
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| Publication Number | Publication Date |
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| CN104977695A CN104977695A (en) | 2015-10-14 |
| CN104977695B true CN104977695B (en) | 2018-01-12 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1176401A (en) * | 1996-08-23 | 1998-03-18 | 旭精密株式会社 | Super wide angle lens system using aspherical lens |
| CN204044422U (en) * | 2014-04-30 | 2014-12-24 | 南阳市海科光电有限责任公司 | A kind of ultra-wide angle high definition high-speed camera lens optical system |
| CN204287584U (en) * | 2014-12-16 | 2015-04-22 | 福建福光数码科技有限公司 | Ultra-wide angle high definition day and night focuses mould camera lens |
| CN204855919U (en) * | 2015-07-14 | 2015-12-09 | 福建福光股份有限公司 | Big miniature mould camera lens of visual field linear deformation |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11326756A (en) * | 1998-05-20 | 1999-11-26 | Cosina Co Ltd | Wide-angle lens |
-
2015
- 2015-07-14 CN CN201510407744.XA patent/CN104977695B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1176401A (en) * | 1996-08-23 | 1998-03-18 | 旭精密株式会社 | Super wide angle lens system using aspherical lens |
| JP3062735B2 (en) * | 1996-08-23 | 2000-07-12 | 旭精密株式会社 | Super wide angle lens system using aspherical lens |
| CN204044422U (en) * | 2014-04-30 | 2014-12-24 | 南阳市海科光电有限责任公司 | A kind of ultra-wide angle high definition high-speed camera lens optical system |
| CN204287584U (en) * | 2014-12-16 | 2015-04-22 | 福建福光数码科技有限公司 | Ultra-wide angle high definition day and night focuses mould camera lens |
| CN204855919U (en) * | 2015-07-14 | 2015-12-09 | 福建福光股份有限公司 | Big miniature mould camera lens of visual field linear deformation |
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| Publication number | Publication date |
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| CN104977695A (en) | 2015-10-14 |
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