CN109375340A - A kind of 360 degree are looked around no dead angle optical imaging system - Google Patents
A kind of 360 degree are looked around no dead angle optical imaging system Download PDFInfo
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- CN109375340A CN109375340A CN201811101307.5A CN201811101307A CN109375340A CN 109375340 A CN109375340 A CN 109375340A CN 201811101307 A CN201811101307 A CN 201811101307A CN 109375340 A CN109375340 A CN 109375340A
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- lens
- group
- imaging system
- degree
- dead angle
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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
Abstract
This application discloses a kind of 360 degree to look around no dead angle optical imaging system, front lens group, diaphragm, rear microscope group and image planes is disposed with from object plane side to image planes side along optical axis direction, the optical imagery meets: -4.0 < fPreceding group< -3.0；4.0 < fGroup afterwards< 4.5；- 1.2 < fGroup afterwards/fPreceding group< -1.1；Wherein: fPreceding groupFor the optical focal length of front lens group, fGroup afterwardsFor the optical focal length of rear microscope group group volume.The optical imaging system of the application system uses the full glass framework of six chip optics, single 195 degree of imaging, then passes through the splicing and cutting of back-end software algorithm, so that the critical seamless connection of former and later two areas imagings is combined into a picture；Realize 360 degrees omnidirection covering.
Description
Technical field
This application involves a kind of optical imaging systems, look around no dead angle optical imaging system more particularly to a kind of 360 degree.
Background technique
As current onboard system, a large amount of of monitoring system popularize, to different scenes, different angle has wished to comprehensive
Covering；From safety considerations, be such as able to achieve 360 look around on the basis of, only by a set of equipment, i.e. saving cost, and can be with
Space and installation are saved to the maximum extent；
And it is most of on the market at present can only realize 180 ° of coverings, if to realize 360 ° must using two equipment, one
Platform equipment is equipped with an optical system, and two optical systems as contemplated by this patent are integrated on a chip and equipment, but
There are no appearance；
Summary of the invention
The purpose of the present invention is to provide a kind of 360 degree to look around no dead angle optical imaging system, to overcome in the prior art
Deficiency.
To achieve the above object, the invention provides the following technical scheme: a kind of 360 degree are looked around no dead angle optical imagery system
System, is disposed with front lens group, diaphragm, rear microscope group and image planes, feature from object plane side to image planes side along optical axis direction and exists
In: the optical imagery meets following condition formulae:
[conditional 1]
- 4.0 < fPreceding group< -3.0
[conditional 2]
4.0 < fGroup afterwards< 4.5
[conditional 3]
- 1.2 < fGroup afterwards/fPreceding group< -1.1
Wherein: fPreceding groupFor the optical focal length of front lens group, fGroup afterwardsFor the optical focal length of rear microscope group group volume.
Preferably, the optical interval of the front lens group and diaphragm is 3.78mm, the optical interval of the diaphragm and rear microscope group
For 2.93mm, the optical interval of the rear microscope group and image planes is more than or equal to 5.7mm.
Preferably, the front lens group is disposed with the first lens, along optical axis direction from object plane side to image planes side
Two lens and the third lens；It is described after microscope group be disposed with along optical axis direction from object plane side to image planes side the 4th lens,
5th lens and the 6th lens.
Preferably, first lens are curved month type negative lens, and second lens are double concave type negative lens, the third
Lens are biconvex positive lens, and the 4th lens are curved month type positive lens, and the 5th lens are biconvex positive lens, described
6th lens are biconvex positive lens.
Preferably, first lens material is H-K9L, and second lens material is H-ZK9B, the third lens
Material is H-ZF12, and the 4th lens material is H-LAK53, and the 5th lens material is H-ZF52A, the 6th lens
Material is H-ZBAF20.
Preferably, the 4th lens and the 5th lens form one group of balsaming lens group.
Preferably, the radius of curvature on the left and right two sides of the third lens is consistent.
Preferably, the optical interval of first lens and the second lens is 1.88mm, the second lens and the third lens
Optical interval is 0.83mm, and the optical interval of the 5th lens and the 6th lens is 0.35mm.
Preferably, the optical imaging system meets:
Wherein:For the first lens strength,For the second lens strength,For the third lens focal power,For
4th lens strength,For the 5th lens strength,For the 6th lens strength.
Preferably, the optical imaging system meets:
First lens: 10≤R2≤11 2.8≤R2≤4.2 0.7≤D≤0.9
Second lens: the 2.5≤R2 of -24≤R1≤- 22≤3.0 0.6≤D≤0.8
The third lens: 17≤R1≤2.3≤D≤2.9 18-18≤R2≤- 17
4th lens: 7.0≤R1≤7.2 2.5≤R2≤3.0 1.8≤D≤2.2
5th lens: 2.5≤R1≤1.3≤D≤1.5 3.0-7≤R2≤- 8
6th lens: 4.5≤R1≤1.2≤D≤1.4 5.0-25≤R2≤- 28
Wherein: R1 is radius of curvature value of the lens close to object plane side, R2 lens close to the radius of curvature value of side of practising physiognomy,
D is the center thickness value of lens.
Compared with prior art, the optical imaging system of the application system uses the full glass framework of six chip optics, single
A 195 degree of imaging, then pass through the splicing and cutting of back-end software algorithm, so that the critical seamless connection of former and later two areas imagings
It is combined into a picture；Realize 360 degrees omnidirection covering.By the reasonable distribution of the focal power of above-mentioned six pieces of optical lenses, this is
System realizes the following conditions: focal length f=1.45mm；Aperture F#=1.8；DFOV=195 ° of angle；Chip φ 4.0.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The some embodiments recorded in application, for those of ordinary skill in the art, without creative efforts,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 is to look around no dead angle optical imaging system schematic diagram for 360 degree in the specific embodiment of the invention；
Fig. 2 is to look around no dead angle optical imaging system in the specific embodiment of the invention and turn back combination diagram for 360 degree；
Fig. 3 looks around the optical aberration schematic diagram of no dead angle optical imaging system for 360 degree in the specific embodiment of the invention；
Fig. 4 is 360 degree of curvature of field for looking around no dead angle optical imaging system and distortion schematic diagram in the specific embodiment of the invention；
Fig. 5 looks around the point range schematic diagram of no dead angle optical imaging system for 360 degree in the specific embodiment of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out detailed retouch
It states, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the present invention
In embodiment, those of ordinary skill in the art's every other implementation obtained without making creative work
Example, shall fall within the protection scope of the present invention.
As shown in connection with fig. 1, no dead angle optical imaging system is looked around for a kind of 360 degree, along optical axis direction from object plane side to picture
Face side is disposed with front lens group, diaphragm, rear microscope group and image planes, it is characterised in that: optical imagery meets following condition formulae:
[conditional 1]
- 4.0 < fPreceding group< -3.0
[conditional 2]
4.0 < fGroup afterwards< 4.5
[conditional 3]
- 1.2 < fGroup afterwards/fPreceding group< -1.1
Wherein: fPreceding groupFor the optical focal length of front lens group, fGroup afterwardsFor the optical focal length of rear microscope group group volume.
Preferably, the optical interval of front lens group and diaphragm is 3.78mm, and the optical interval of diaphragm and rear microscope group is 2.93mm,
The optical interval of microscope group and image planes is more than or equal to 5.7mm afterwards.
In the technical scheme, rear microscope group can opposing optical imaging system carry out 90 degree transfer, pass through 90 degree of rear microscope group
It turns back, the general thickness of product can be made to decline 60%.
Preferably, front lens group is disposed with the first lens, second along optical axis direction thoroughly from object plane side to image planes side
Mirror and the third lens；Microscope group is disposed with the 4th lens, the 5th lens from object plane side to image planes side along optical axis direction afterwards
With the 6th lens.
Preferably, the first lens are curved month type negative lens, and the second lens are double concave type negative lens, and the third lens are biconvex
Positive lens, the 4th lens are curved month type positive lens, and the 5th lens are biconvex positive lens, and the 6th lens are biconvex positive lens.
Preferably, the first lens material is H-K9L, and the second lens material is H-ZK9B, and the third lens material is H-ZF12,
4th lens material is H-LAK53, and the 5th lens material is H-ZF52A, and the 6th lens material is H-ZBAF20.
In the technical scheme, to reduce production cost as far as possible, the first, second, third lens using it is conventional it is low at
This glass material.
Preferably, the 4th lens and the 5th lens form one group of balsaming lens group.
In the technical scheme, the 4th lens and the 5th lens are formed by the photosensitive glue glued adhesion of optical grade.
Preferably, the radius of curvature on the left and right two sides of the third lens is consistent.
In the technical scheme, the directions question for distinguishing the third lens is not had in processing and assembling process, saves working hour.
Preferably, the optical interval of the first lens and the second lens is 1.88mm, the optics of the second lens and the third lens
Between be divided into 0.83mm, the optical interval of the 5th lens and the 6th lens is 0.35mm.
Preferably, optical imaging system meets:
Wherein:For the first lens strength,For the second lens strength,For the third lens focal power,For
4th lens strength,For the 5th lens strength,For the 6th lens strength.
Preferably, optical imaging system meets:
First lens: 10≤R2≤11 2.8≤R2≤4.2 0.7≤D≤0.9
Second lens: the 2.5≤R2 of -24≤R1≤- 22≤3.0 0.6≤D≤0.8
The third lens: 17≤R1≤2.3≤D≤2.9 18-18≤R2≤- 17
4th lens: 7.0≤R1≤7.2 2.5≤R2≤3.0 1.8≤D≤2.2
5th lens: 2.5≤R1≤1.3≤D≤1.5 3.0-7≤R2≤- 8
6th lens: 4.5≤R1≤1.2≤D≤1.4 5.0-25≤R2≤- 28
Wherein: R1 is radius of curvature value of the lens close to object plane side, R2 lens close to the radius of curvature value of side of practising physiognomy,
D is the center thickness value of lens.
In technical solution, for the ease of in high volume assembling, optical imaging system front lens group bore is greater than the saturating of rear microscope group
Aperture of mirror, rear microscope group interior lens bore is consistent, but the interior lens bore of front and back microscope group is inconsistent, is so highly convenient for lens
Placement
As shown in Fig. 2, one kind of the specific embodiment of the invention looks around 360 ° without dead angle optical imaging system, in order to give rear end
Software algorithm reserves clip space, and the optical angle of individual system accomplishes 195 °, reserves the cutting that 15 ° of space is stepped down with algorithm
Fig. 3, Fig. 3 and Fig. 4 show the optical imaging system of the big target surface of eight mega pixel of 4K in the specific embodiment of the invention
Optical aberration schematic diagram, the curvature of field and distortion schematic diagram and point range schematic diagram.
In conclusion compared with prior art, the optical imaging system of the application system uses the six full glass of chip optics
Glass framework, single 195 degree of imaging, then pass through the splicing and cutting of back-end software algorithm, so that former and later two areas imagings face
Boundary's seamless connection is combined into a picture；Realize 360 degrees omnidirection covering.Pass through the reasonable of the focal powers of above-mentioned six pieces of optical lenses
Distribution, the system realize the following conditions: focal length f=1.45mm；Aperture F#=1.8；DFOV=195 ° of angle；Chip φ 4.0.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The above is only the specific embodiment of the application, it is noted that for the ordinary skill people of the art
For member, under the premise of not departing from the application principle, several improvements and modifications can also be made, these improvements and modifications are also answered
It is considered as the protection scope of the application.
Claims (10)
1. a kind of 360 degree are looked around no dead angle optical imaging system, set gradually along optical axis direction from object plane side to image planes side
There are front lens group, diaphragm, rear microscope group and image planes, it is characterised in that: the optical imagery meets following condition formulae:
[conditional 1]
- 4.0 < fPreceding group< -3.0
[conditional 2]
4.0 < fGroup afterwards< 4.5
[conditional 3]
- 1.2 < fGroup afterwards/fPreceding group< -1.1
Wherein: fPreceding groupFor the optical focal length of front lens group, fGroup afterwardsFor the optical focal length of rear microscope group group volume.
2. a kind of 360 degree according to claim 1 are looked around no dead angle optical imaging system, it is characterised in that: the preceding mirror
Group and the optical interval of diaphragm are 3.78mm, and the optical interval of the diaphragm and rear microscope group is 2.93mm, the rear microscope group and picture
The optical interval in face is more than or equal to 5.7mm.
3. a kind of 360 degree according to claim 1 are looked around no dead angle optical imaging system, it is characterised in that: the preceding mirror
Group is disposed with the first lens, the second lens and the third lens from object plane side to image planes side along optical axis direction；After described
Microscope group is disposed with lens, the 5th lens and the 6th lens from object plane side to image planes side along optical axis direction.
4. a kind of 360 degree according to claim 3 are looked around no dead angle optical imaging system, it is characterised in that: described first
Lens are curved month type negative lens, and second lens are double concave type negative lens, and the third lens are biconvex positive lens, described
4th lens are curved month type positive lens, and the 5th lens are biconvex positive lens, and the 6th lens are biconvex positive lens.
5. looking around no dead angle optical imaging system according to a kind of 360 degree as claimed in claim 3, it is characterised in that: described first thoroughly
Mirror material is H-K9L, and second lens material is H-ZK9B, and the third lens material is H-ZF12, the 4th lens
Material is H-LAK53, and the 5th lens material is H-ZF52A, and the 6th lens material is H-ZBAF20.
6. looking around no dead angle optical imaging system according to a kind of 360 degree as claimed in claim 3, it is characterised in that: the described 4th thoroughly
Mirror and the 5th lens form one group of balsaming lens group.
7. looking around no dead angle optical imaging system according to a kind of 360 degree as claimed in claim 3, it is characterised in that: the third is saturating
The radius of curvature on the left and right two sides of mirror is consistent.
8. looking around no dead angle optical imaging system according to a kind of 360 degree as claimed in claim 3, it is characterised in that: described first thoroughly
The optical interval of mirror and the second lens is 1.88mm, and the optical interval of the second lens and the third lens is 0.83mm, the described 5th
The optical interval of lens and the 6th lens is 0.35mm.
9. looking around no dead angle optical imaging system according to a kind of 360 degree as claimed in claim 3, it is characterised in that: the optics at
As system meets:
Wherein:For the first lens strength,For the second lens strength,For the third lens focal power,It is the 4th
Lens strength,For the 5th lens strength,For the 6th lens strength.
10. looking around no dead angle optical imaging system according to a kind of 360 degree as claimed in claim 3, it is characterised in that: the optics at
As system meets:
First lens: 10≤R2≤11 2.8≤R2≤4.2 0.7≤D≤0.9
Second lens: the 2.5≤R2 of -24≤R1≤- 22≤3.0 0.6≤D≤0.8
The third lens: 17≤R1≤18-18≤2.3≤D≤2.9 R2≤- 17
4th lens: 7.0≤R1≤7.2 2.5≤R2≤3.0 1.8≤D≤2.2
5th lens: 2.5≤R1≤3.0-7≤1.3≤D≤1.5 R2≤- 8
6th lens: 4.5≤R1≤5.0-25≤1.2≤D≤1.4 R2≤- 28
Wherein: R1 is radius of curvature value of the lens close to object plane side, and R2 lens are close to the radius of curvature value of side of practising physiognomy, D
The center thickness value of lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811101307.5A CN109375340B (en) | 2018-09-20 | 2018-09-20 | 360-degree looking-around dead-angle-free optical imaging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811101307.5A CN109375340B (en) | 2018-09-20 | 2018-09-20 | 360-degree looking-around dead-angle-free optical imaging system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109375340A true CN109375340A (en) | 2019-02-22 |
| CN109375340B CN109375340B (en) | 2023-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811101307.5A Active CN109375340B (en) | 2018-09-20 | 2018-09-20 | 360-degree looking-around dead-angle-free optical imaging system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113219637A (en) * | 2021-03-16 | 2021-08-06 | 上海峰梅光学科技有限公司 | Vehicle-mounted ADAS wide-angle lens |
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| JP2010224010A (en) * | 2009-03-19 | 2010-10-07 | Olympus Corp | Optical system |
| CN204065536U (en) * | 2012-02-22 | 2014-12-31 | 富士胶片株式会社 | Imaging lens system and possess the camera head of this imaging lens system |
| CN105204142A (en) * | 2015-09-18 | 2015-12-30 | 苏州莱能士光电科技有限公司 | High-resolution and ultra-wide field fish-eye lens optical system with day-and-night confocal function |
| CN107728294A (en) * | 2017-11-21 | 2018-02-23 | 苏州莱能士光电科技股份有限公司 | One kind looks around 360 degree of panoramic high-definition imaging systems |
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2018
- 2018-09-20 CN CN201811101307.5A patent/CN109375340B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010224010A (en) * | 2009-03-19 | 2010-10-07 | Olympus Corp | Optical system |
| CN204065536U (en) * | 2012-02-22 | 2014-12-31 | 富士胶片株式会社 | Imaging lens system and possess the camera head of this imaging lens system |
| CN105204142A (en) * | 2015-09-18 | 2015-12-30 | 苏州莱能士光电科技有限公司 | High-resolution and ultra-wide field fish-eye lens optical system with day-and-night confocal function |
| CN107728294A (en) * | 2017-11-21 | 2018-02-23 | 苏州莱能士光电科技股份有限公司 | One kind looks around 360 degree of panoramic high-definition imaging systems |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113219637A (en) * | 2021-03-16 | 2021-08-06 | 上海峰梅光学科技有限公司 | Vehicle-mounted ADAS wide-angle lens |
| CN113219637B (en) * | 2021-03-16 | 2023-03-14 | 上海峰梅光学科技有限公司 | Vehicle-mounted ADAS wide-angle lens |
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| Publication number | Publication date |
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| CN109375340B (en) | 2023-10-10 |
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