CN105511061B - A kind of ultra-wide angle high definition optical lens - Google Patents
A kind of ultra-wide angle high definition optical lens Download PDFInfo
- Publication number
- CN105511061B CN105511061B CN201610050679.4A CN201610050679A CN105511061B CN 105511061 B CN105511061 B CN 105511061B CN 201610050679 A CN201610050679 A CN 201610050679A CN 105511061 B CN105511061 B CN 105511061B
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- lens
- ultra
- high definition
- wide angle
- diaphragm
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Classifications
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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
- G02B13/001—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
- G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
- G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Abstract
The invention discloses a kind of ultra-wide angle high definition optical lens, the first lens being coaxially disposed are sequentially provided between object space and image space, second lens, 3rd lens, 4th lens, 5th lens, 6th lens, 7th lens and the 8th lens, diaphragm is provided between 4th lens and the 5th lens, optical filter is provided between 8th lens and image space, first lens, second lens and the 3rd lens are in curved month type, its concave surface is towards diaphragm, 4th lens are lenticular lens, 5th lens are in curved month type, its concave surface is towards diaphragm, 6th lens and the glued formation balsaming lens of the 7th lens, 8th lens are biconvex lens.The present invention can reach 240 degree of big visual angle, its high-resolution, can reach 16,000,000 pixels, and its relative aperture can reach 2.0, and overall structure element is few, and cost is low.
Description
Technical field
The present invention relates to a kind of optical system, more particularly to one kind to be applied to 360 degree of panorama moving cameras, overall view monitorings etc.
Ultra-wide angle high definition optical lens.
Background technology
The wide-angle lens visual angle of in the market main flow is mostly smaller, is mainly used in the field such as monitoring, photography, vehicle-mounted.But
Some fields, these camera lenses are difficult to meet requirement, as 360 degree of panorama moving cameras in some extreme sports, panorama are supervised
Control etc., above-mentioned wide-angle lens is unfavorable for popularization and application, in addition, existing in general wide-angle lens, resolution ratio is relatively low, especially draws
Face edge, edge image is unintelligible or has distortion, is obviously not suitable for for the higher occasion of some pixel requests.In addition, angle mirror
Head relative aperture is smaller, can only be used in the case where illumination is relatively strong, experience extreme difference of being taken pictures when illumination is weaker.
Drawbacks described above, it is worth improving.
The content of the invention
In order to overcome the shortcomings of existing technology, the present invention provides a kind of ultra-wide angle high definition optical lens.
Technical solution of the present invention is as described below：
A kind of ultra-wide angle high definition optical lens, it is characterised in that be coaxially disposed is sequentially provided between object space and image space
One lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens, the 7th lens and the 8th lens, it is described
Diaphragm is provided between 4th lens and the 5th lens, optical filter is provided between the 8th lens and the image space,
First lens, second lens and the 3rd lens are in curved month type, and its concave surface is towards the light
Door screen, the 4th lens are lenticular lens, and the 5th lens are in curved month type, and its concave surface is towards the diaphragm, described
Six lens and the glued formation balsaming lens of the 7th lens, the 8th lens are biconvex lens.
Further, the focal length of first lens, second lens, the 3rd lens and the 7th lens
It is negative, the 4th lens, the 5th lens, the focal length of the 6th lens and the 8th lens is just.
Further, the 3rd lens, the 5th lens and the 8th lens are plastic lens, the plastic cement
Lens face type is aspherical face type, first lens, second lens, the 4th lens, the 6th lens and
7th lens are glass lens, and glass lens face type is spherical surface type.
Further, the ultra-wide angle high definition optical lens is anti-long distance structure so that system focal length f and overall length T meets to close
SystemThereafter the relation of burnt BFL and overall length isIts outside diameter d is with overall length T relationship
Further, the refractive index Nd and abbe number Vd of first lens and second lens meet：1.6 ＜ Nd
The ＜ Vd ＜ 55 of ＜ 1.8,45.
The refractive index Nd and abbe number Vd of 3rd lens, the 5th lens and the 8th lens meet：
The ＜ Vd ＜ 60 of 1.5 ＜ Nd ＜ 1.55,50.
The refractive index Nd and abbe number Vd of 4th lens meet：The ＜ Vd ＜ 35 of 1.65 ＜ Nd ＜ 1.75,25.
The refractive index Nd and abbe number Vd of 6th lens meet：The ＜ Vd ＜ 55 of 1.7 ＜ Nd ＜ 1.8,45.
The refractive index Nd and abbe number Vd of 7th lens meet：The ＜ Vd ＜ 25 of 1.85 ＜ Nd ＜ 1.95,18.
According to the present invention of such scheme, its advantage is：
1st, the present invention can reach 240 degree of big visual angle, and it is less scarce to overcome the in the market main flow wide-angle lens angle of visual field
Point.
2nd, high-resolution of the present invention, 16,000,000 pixels can be reached, be effectively improved present main flow wide-angle lens resolution ratio compared with
The shortcomings that low.
3rd, relative aperture of the present invention is larger, can reach 2.0, compared with decreased light using also can obtain preferably imaging effect
Fruit, overcome the shortcomings that in the market main flow wide-angle lens can only use under stronger light.
4th, only by 5 pieces of glass lens and 3 pieces of plastic lens, totally eight pieces of eyeglasses form optical lens of the invention, system member
Part is few, and cost is low, suitable for producing in enormous quantities.
Brief description of the drawings
Fig. 1 is the optical system schematic diagram of the present invention；
Fig. 2 is the MTF figures of the present invention.
In figure, the 1, first lens；2nd, the second lens；3rd, the 3rd lens；4th, the 4th lens；5th, the 5th lens；6th, the 6th
Lens；7th, the 7th lens；8th, the 8th lens；9th, diaphragm；10th, optical filter；11st, image planes.
Embodiment
Below in conjunction with the accompanying drawings and the present invention is further described embodiment：
As shown in figure 1, a kind of ultra-wide angle high definition optical lens for being applied to 360 degree of panorama moving cameras, overall view monitorings etc.,
The first lens 1 being coaxially disposed, the second lens 2, the 3rd lens 3, the 4th lens 4, are sequentially provided between object space and image planes 11
Five lens 5, the 6th lens 6, the 7th lens 7 and the 8th lens 8, diaphragm 9 is provided between the 4th lens 4 and the 5th lens 5, the
Optical filter 10 is provided between eight lens 8 and image planes 11.Wherein, the 3rd lens 3, the 5th lens 5, the 8th lens 8 are plastic lens,
Remaining 5 are glass lens.Plastic lens face type is aspherical face type, and glass lens face type is spherical surface type.This is done so that
Whole optical system components are few, and cost is low.
The shape of first lens 1 is in curved month type, and its concave surface has the function that to converge light refraction angle towards diaphragm；The
The shape of two lens 2 is in curved month type, and its concave surface can also effectively reduce ball towards diaphragm while changing deflection of light angle
Difference；The shape of 3rd lens 3 is in curved month type, and its concave surface is larger towards diaphragm, the curvature in this face of lens second；4th lens 4 are
Lenticular lens, have and ensure that aberration is balanced, control the effect of chief ray angle, the 3rd lens 3 and the 4th lens 4 using positive and negative
Opposite lens, the aberration of the system effectively reduced；The shape of 5th lens 5 is in curved month type, and its concave surface reduces towards diaphragm
System spherical aberration；6th lens 6 and the 7th lens 7 are balsaming lens, effective correcting chromatic aberration；8th lens 8 are biconvex lens, are had
Control chief ray angle balances the effect of aberration simultaneously.
First lens 1 and the second lens 2 all meet the ＜ Vd ＜ 55 of 1.6 ＜ Nd ＜ 1.8,45；3rd lens 3, the 5th lens
5th, the 8th lens 8 all meet the ＜ Vd ＜ 60 of 1.5 ＜ Nd ＜ 1.55,50；4th lens 4 meet the ＜ Vd of 1.65 ＜ Nd ＜ 1.75,25
＜ 35；6th lens 6 meet the ＜ Vd ＜ 55 of 1.7 ＜ Nd ＜ 1.8,45；7th lens 7 meet the ＜ Vd of 1.85 ＜ Nd ＜ 1.95,18
＜ 25.Wherein, Nd refers to the refractive index of lens, and Vd refers to the abbe number of lens.
The present invention uses anti-long distance structure so that system focal length f and overall length T meets relationThereafter it is burnt
The relation of BFL and overall length isIts outside diameter d is with overall length T relationshipAnd then cause system
Visual angle reaches 240 °, aperture reaches F.no and reach 2.0.
Preferably, above-mentioned each simple lens focal length meets：First lens 1, the second lens 2, the 3rd lens 3, focal length are
It is negative, reasonable distribution angular so that glass lens and plastic lens can play maximum effect, the focal length of the 4th lens 4 for just, the
The focal length of five lens 5 be just, the 6th focal length of lens be just, the 7th focal length of lens be bear, the focal length of the 8th lens 8 is just.
As shown in Fig. 2 it is MTF (optical transfer function) figure of optical system of the present invention.The present invention uses big visual angle, reaches
To 240 degree, the less shortcoming of the in the market main flow wide-angle lens angle of visual field is overcome；Relative aperture of the present invention is larger, high-resolution,
Reach 16,000,000 pixels, be effectively improved the shortcomings that present main flow wide-angle lens resolution ratio is relatively low, and can be in the case of light is weaker
Shoot preferable imaging effect.
It should be appreciated that for those of ordinary skills, can according to the above description be improved or converted,
And all these modifications and variations should all belong to the protection domain of appended claims of the present invention.
Exemplary description has been carried out to patent of the present invention above in conjunction with accompanying drawing, it is clear that the realization of patent of the present invention not by
The limitation of aforesaid way, if the various improvement that the methodology of patent of the present invention and technical scheme are carried out are employed, or without
Improve and the design of patent of the present invention and technical scheme are directly applied into other occasions, within the scope of the present invention.
Claims (3)
1. a kind of ultra-wide angle high definition optical lens, it is characterised in that first be coaxially disposed is sequentially provided between object space and image space
Lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens, the 7th lens and the 8th lens, described
Diaphragm is provided between four lens and the 5th lens, optical filter is provided between the 8th lens and the image space,
First lens, second lens and the 3rd lens are in curved month type, its concave surface towards the diaphragm,
4th lens are lenticular lens,
5th lens are in curved month type, its concave surface towards the diaphragm,
6th lens and the glued formation balsaming lens of the 7th lens,
8th lens are biconvex lens,
The ultra-wide angle high definition optical lens is anti-long distance structure so that system focal length f and overall length T meets relation
Thereafter the relation of burnt BFL and overall length isIts outside diameter d is with overall length T relationship
2. ultra-wide angle high definition optical lens according to claim 1, it is characterised in that first lens, described second
The focal length of lens, the 3rd lens and the 7th lens is negative, the 4th lens, the 5th lens, described
The focal length of six lens and the 8th lens is just.
3. ultra-wide angle high definition optical lens according to claim 1, it is characterised in that the 3rd lens, the described 5th
Lens and the 8th lens are plastic lens, and plastic lens face type is aspherical face type, first lens, described
Second lens, the 4th lens, the 6th lens and the 7th lens are glass lens, glass lens face type
For spherical surface type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610050679.4A CN105511061B (en) | 2016-01-26 | 2016-01-26 | A kind of ultra-wide angle high definition optical lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610050679.4A CN105511061B (en) | 2016-01-26 | 2016-01-26 | A kind of ultra-wide angle high definition optical lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105511061A CN105511061A (en) | 2016-04-20 |
| CN105511061B true CN105511061B (en) | 2018-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610050679.4A Expired - Fee Related CN105511061B (en) | 2016-01-26 | 2016-01-26 | A kind of ultra-wide angle high definition optical lens |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107065137B (en) * | 2017-03-30 | 2023-03-28 | 广东弘景光电科技股份有限公司 | Super wide angle optical system of making a video recording and module of making a video recording of using thereof |
| EP3631551A4 (en) * | 2017-06-02 | 2021-03-10 | Owl Labs, Inc. | Wide angle lens and camera system for peripheral field of view imaging |
| CN107167898B (en) * | 2017-06-29 | 2023-05-02 | 江西联创电子有限公司 | Fish-eye lens |
| CN109960004B (en) * | 2017-12-22 | 2021-05-07 | 宁波舜宇车载光学技术有限公司 | Optical lens |
| KR102629490B1 (en) * | 2018-01-08 | 2024-01-25 | 삼성전기주식회사 | Optical Imaging System |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5666228A (en) * | 1995-09-28 | 1997-09-09 | Fuji Photo Optical Co., Ltd. | Retrofocus type lens |
| CN1161461A (en) * | 1995-06-02 | 1997-10-08 | 德克萨斯仪器股份有限公司 | Offset zoom lens for reflective light modulators |
| CN104834076A (en) * | 2015-05-26 | 2015-08-12 | 中山联合光电科技股份有限公司 | Small-f-theta-distortion and high-resolution optical system |
| CN205562933U (en) * | 2016-01-26 | 2016-09-07 | 深圳市谛源光科有限公司 | Super wide angle high definition optical lens |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4232269B2 (en) * | 1999-04-20 | 2009-03-04 | コニカミノルタオプト株式会社 | Projection optical system |
-
2016
- 2016-01-26 CN CN201610050679.4A patent/CN105511061B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1161461A (en) * | 1995-06-02 | 1997-10-08 | 德克萨斯仪器股份有限公司 | Offset zoom lens for reflective light modulators |
| US5666228A (en) * | 1995-09-28 | 1997-09-09 | Fuji Photo Optical Co., Ltd. | Retrofocus type lens |
| CN104834076A (en) * | 2015-05-26 | 2015-08-12 | 中山联合光电科技股份有限公司 | Small-f-theta-distortion and high-resolution optical system |
| CN205562933U (en) * | 2016-01-26 | 2016-09-07 | 深圳市谛源光科有限公司 | Super wide angle high definition optical lens |
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| CN105511061A (en) | 2016-04-20 |
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Granted publication date: 20180206 Termination date: 20210126 |