CN105572850B - A kind of auxiliary imaging devices for intelligent terminal - Google Patents
A kind of auxiliary imaging devices for intelligent terminal Download PDFInfo
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- CN105572850B CN105572850B CN201610128448.0A CN201610128448A CN105572850B CN 105572850 B CN105572850 B CN 105572850B CN 201610128448 A CN201610128448 A CN 201610128448A CN 105572850 B CN105572850 B CN 105572850B
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- lens
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- camera lens
- intelligent terminal
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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
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B15/00—Optical objectives with means for varying the magnification
- G02B15/02—Optical objectives with means for varying the magnification by changing, adding, or subtracting a part of the objective, e.g. convertible objective
- G02B15/10—Optical objectives with means for varying the magnification by changing, adding, or subtracting a part of the objective, e.g. convertible objective by adding a part, e.g. close-up attachment
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
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Abstract
The present invention relates to a kind of auxiliary imaging devices for intelligent terminal, comprising: camera lens is arranged in front of the camera of intelligent terminal；The camera lens, it sequentially include: preceding lens group, rear lens group and diaphragm to image space from object space, wherein, preceding lens group includes the first lens and the second lens, rear lens group includes the third lens, the 4th lens, the 5th lens and the 6th lens, and preceding lens group is negative refractive rate lens group, rear lens group is refractive positive lens group.The embodiment provide the auxiliary imaging devices for intelligent terminal, by before the camera of intelligent terminal be arranged by object space be more than 180 degree field angle compression of images to 90 degree of field angles image camera lens, with realize intelligent terminal big field angle be imaged.
Description
Technical field
The present invention relates to optical lens technology field more particularly to a kind of auxiliary imaging devices for intelligent terminal.
Background technique
The tremendous development of big wide angle shot and monitoring device, so that user obtains big field angle image by intelligent terminal
Demand is further strong, especially the shooting to the 4 π solid angle total spaces.Micro-lens and wide-angle lens conduct can usually be used
The attachment lens of intelligent terminal, so that intelligent terminal obtains big field angle image.
However, the present inventor has found during implementing the invention: being made using micro-lens and wide-angle lens
For the attachment lens of intelligent terminal, the angle of view is small, and imaging effect is poor, and image definition is low.
Summary of the invention
The object of the present invention is to provide a kind of auxiliary imaging devices for intelligent terminal, pass through the camera shooting in intelligent terminal
Head before setting by object space be more than 180 degree field angle compression of images to 90 degree of field angles image camera lens, so as to reality
The big field angle imaging of existing intelligent terminal, and imaging effect is good, image is more clear.
A kind of intelligent terminal auxiliary imaging device provided by the invention, comprising: the camera shooting of intelligent terminal is arranged in camera lens
Before head；The camera lens sequentially includes: preceding lens group, rear lens group and diaphragm to image space from object space, and the visual field of the camera lens
Angle is greater than 180 degree,
Wherein, the preceding lens group includes the first lens and the second lens, and the rear lens group includes the third lens, the 4th
Lens, the 5th lens and the 6th lens, and the preceding lens group is negative refractive rate lens group, the rear lens group is positive refracting power
Lens group.
Optionally, the camera lens is arranged in front of the front camera of the intelligent terminal, the position of the diaphragm of the camera lens
It sets and is overlapped with the position of the front camera diaphragm；Or, the camera lens be arranged in the intelligent terminal rear camera it
Before, the position of the diaphragm of the camera lens is overlapped with the position of the diaphragm of the rear camera.
Optionally, the camera lens includes: the first camera lens, is arranged in front of the front camera of the intelligent terminal, and institute
The position for stating the diaphragm of the first camera lens is overlapped with the position of the diaphragm of the front camera；And second camera lens, it is arranged in institute
Before the rear camera for stating intelligent terminal, and the diaphragm of the position of the diaphragm of second camera lens and the rear camera
Position is overlapped；The optical axis of the optical axis of first camera lens and second camera lens is parallel to each other.
Optionally, the distance on the first vertex to the second vertex of the first lens of the preceding lens group that first camera lens includes
Distance for third vertex to the 4th vertex of the first lens of d1, second the camera lens preceding lens group for including is d2, and d1
=d2,
Wherein, the object for the first lens that first vertex includes for the optical axis of first camera lens and first camera lens
The intersection point on square surface, the intersection point for the diaphragm that second vertex includes for the optical axis of first camera lens and first camera lens,
The intersection point of the object side surface for the first lens that the third vertex includes for the optical axis of second camera lens and second camera lens,
The intersection point for the diaphragm that 4th vertex includes for the optical axis of second camera lens and second camera lens.
Optionally, first lens are negative meniscus, and second lens and the 4th lens are double concave
Negative lens, the third lens and the 5th lens are lenticular positive lens, and the 6th lens are positive lens.
Optionally, first lens, second lens, the third lens, the 4th lens, it is described 5th thoroughly
Mirror, the 6th lens, the 7th lens and the 8th lens surface be spherical surface.
Optionally, the camera lens meets the following conditions: 2.5≤| f6/f15 |≤3.5, wherein f6 is the 6th lens
Focal length, f15 be first lens, second lens, the third lens, the 4th lens and the 5th lens
Combined focal length.
Optionally, the camera lens meets the following conditions: 1.5≤| f1/f2 |≤2.5,3≤| f1/f12 |≤3.8,3≤|
F35/f12 |≤4, wherein f1 is the focal length of first lens, and f2 is the focal length of second lens, and f12 is described first
The combined focal length of lens and second lens, f35 are the third lens, the group of the 4th lens and the 5th lens
Complex focus.
Optionally, the Abbe number of the third lens and the 5th lens is less than 40, the Abbe number of the 4th lens
Greater than 40.
Optionally, the camera lens meets the following conditions: 1.4≤| f35/f3 |≤2.2,1.4≤| f35/f5 |≤2.2,
In, f3 be the third lens focal length, f5 be the 5th lens focal length, f35 be the third lens, it is described 4th thoroughly
The combined focal length of mirror and the 5th lens.
A kind of auxiliary imaging devices for intelligent terminal provided based on the above-mentioned technical proposal, by intelligent terminal
Camera lens is set before camera, can be more than by object space 180 degree field angle compression of images to 90 degree of field angles image for
The camera of intelligent terminal is obtained and is imaged, so as to realize the big field angle imaging of intelligent terminal, and imaging effect
More preferably, image is more clear.
Detailed description of the invention
Attached drawing of the invention is the technical solution for further understanding the embodiment of the present invention for convenience.
Fig. 1 is to be shown according to a kind of structure of the auxiliary imaging devices for intelligent terminal provided by one embodiment of the present invention
It is intended to；
Fig. 2 is according to a kind of mirror that the auxiliary imaging devices for intelligent terminal include provided by one embodiment of the present invention
The optical property figure of head；
Fig. 3 is a kind of structure of the auxiliary imaging devices for intelligent terminal provided according to another embodiment of the present invention
Schematic diagram.
Description of symbols:
1 first lens
2 second lens
3 the third lens
4 the 4th lens
5 the 5th lens
6 the 6th lens
7 diaphragms
8 front cameras
9 rear cameras
10 intelligent terminals
11 camera lenses
12 first camera lenses
13 second camera lenses
The sensor of 18 front cameras
The sensor of 19 rear cameras
Specific embodiment
To make the technical solution of the embodiment of the present invention and becoming apparent from for advantage expression, below by drawings and examples,
Technical scheme of the present invention will be described in further detail, and following embodiment is not limited to this for illustrating the application
The range of application.
Fig. 1 is a kind of structural representation of the auxiliary imaging devices for intelligent terminal provided according to embodiments of the present invention
Figure.For before camera lens to be arranged in the front camera of intelligent terminal, and combine Fig. 1 to the technical side of the embodiment of the present invention
Case is illustrated.
As shown in Figure 1, camera lens 11 is arranged in front of the front camera 8 of intelligent terminal 10, the position of the diaphragm 7 of camera lens 11
It is overlapped with the position of the diaphragm of front camera 8.Front camera 8 may include sensor 18, such as: CCD or CMOS, diaphragm
And camera lens.It will be readily appreciated by those skilled in the art that 7 also indicate the simplification structure of diaphragm and camera lens included by camera.
The camera lens 11 includes: preceding lens group, rear lens group and diaphragm, and the field angle of camera lens 11 is greater than 180 degree.The camera lens
Successively include: from the object side to the image side the first lens 1, the second lens 2, the third lens 3, the 4th lens 4, the 5th lens the 5, the 6th thoroughly
Mirror 6 and diaphragm 7.
Wherein, front lens group includes: the first lens 1 and the second lens 2, and rear lens group includes: that the third lens the 3, the 4th are saturating
Mirror 4, the 5th lens 5 and the 6th lens 6.Also, preceding lens group is negative refractive rate lens group, and rear lens group is refractive positive lens
Group.
Auxiliary imaging devices provided in this embodiment for intelligent terminal, by being set before the camera of intelligent terminal
Set camera lens, can by object space be more than 180 degree field angle compression of images to 90 degree of field angles image taking the photograph for intelligent terminal
As head is obtained and is imaged, so as to realize the big field angle imaging of intelligent terminal, and imaging effect is more preferable, and image is more
Clearly.
It should be understood that in this embodiment, since the preceding lens group of camera lens uses negative refractive rate lens group, rear lens group is used
Refractive positive lens group, so camera lens uses the structure of positive and negative refraction rate lens group separation on the whole, it in this way can be with maximum limit
The aberration that degree ground correction system is introduced due to big wide-angle.
In addition, camera lens visual field will not generate vignetting, so that the imaging illumination of visual field is consistent, it being capable of maximum absorption field
Scape light intensity energy, so the camera lens can be widely applied to big wide-angle scene and pan-shot, for example, can be applied to shooting prison
It controls, in the industries such as entertainment, educational training, display and demonstration.
It should also be understood that camera lens also can be set before the rear camera of intelligent terminal, the position of the diaphragm of camera lens with
The position of the diaphragm of rear camera is overlapped.The specific structure of camera lens is identical with the structure of above-mentioned camera lens 11, and can reach
It is succinct for description to identical effect, it is repeated no more secondary.
Optionally, the first lens 1 are negative meniscus, and the second lens 2 and the 4th lens 4 are double concave negative lens, the
Three lens 3 and the 5th lens 5 are lenticular positive lens, and the 6th lens 6 are positive lens.
Optionally, the first lens 1, the second lens 2, the third lens 3, the 4th lens 4, the 5th lens 5 and the 6th lens 6
Surface can be spherical surface, can also be plane.It is the lens composition of spherical surface or plane, Ke Yi great that the camera lens, which uses surface,
Width reduces processing cost.
Optionally, in one embodiment, camera lens meets the following conditions: 2.5≤| f6/f15 |≤3.5, wherein f6
The focal length of six lens 6, f15 are the first lens 1, the second lens 2, the third lens 3, the group focus of the 4th lens 4 and the 5th lens 5
Away from.
Optionally, in one embodiment, camera lens also meets the following conditions: 1.5≤| f1/f2 |≤2.5,3≤| f1/f12
|≤3.8,3≤| f35/f12 |≤4, wherein f1 is the focal length of the first lens 1, and f2 is the focal length of the second lens 2, f12 first
The combined focal length of lens 1 and the second lens 2, f35 are the third lens 3, the combined focal length of the 4th lens 4 and the 5th lens 5.
Optionally, in one embodiment, camera lens also meets the following conditions: 1.4≤| f35/f3 |≤2.2,1.4≤|
F35/f5 |≤2.2, wherein f3 is the focal length of the third lens 3, and f5 is the focal length of the 5th lens 3, and f35 is the third lens the 3, the 4th
The combined focal length of lens 4 and the 5th lens 5.
Specifically, in this embodiment, the Abbe number of the third lens 3 and the 5th lens 5 less than 40, the 4th lens 4 Ah
Shellfish number is greater than 40.It, under certain conditions, can be with that is, the third lens 3 and the optical property of the 5th lens 5 are almost the same
Using identical lens.
For example, in one embodiment, the field angle of camera lens 11 as shown in Figure 1 is 2 ω=190 °, the diameter D of diaphragm
=2mm.From the object side to the image side successively by the first lens 1, the second lens 2, the third lens 3, the 4th lens 4, the 5th lens 5,
6th lens 6 and diaphragm 7.Camera lens is afocal system, can be 190 degree of image transformations by field angle at field angle be 90 degree at
Picture.
With the object side surface serial number 1 of the first lens 1, image space transmissive surface serial number 2, the object side surface of the second lens 2
Serial number 3, and so on, diaphragm 13, the design data of each optical element is as shown in table 1 in the embodiment.
Table 1
Optical property figure as shown in Figure 2 is the optical property figure according to the camera lens in above-described embodiment.It can be with from Fig. 2
Find out: when the perfect optics camera lens model that focal length is 10mm is added in stop position, the optical property MTF of the camera lens is in 40 lines
To when can achieve 0.1 or more.
Fig. 3 is a kind of structural representation of the auxiliary imaging devices for intelligent terminal provided according to embodiments of the present invention
Figure.Imaging device as shown in Figure 3 includes the first camera lens 12 and the second camera lens 13 staggered relatively, the first camera lens 12 and the second mirror
First 13 structure is identical as the structure of camera lens 11 shown in FIG. 1, and succinct for description, details are not described herein.
First camera lens 12 is arranged in front of the front camera 8 of intelligent terminal 10, and the position of the diaphragm 7 of the first camera lens 12
It is overlapped with the position of the diaphragm of front camera.Second camera lens 13 is arranged in front of the rear camera 9 of intelligent terminal 10, and the
The position of the diaphragm 7 of two camera lenses 13 is overlapped with the position of the diaphragm of rear camera 9.The optical axis and the second camera lens of first camera lens 12
13 optical axis is parallel to each other, and the field angle of the first camera lens 12 and the second camera lens 13 is all larger than 180 degree.
Front camera 8 may include sensor 18, such as: CCD or CMOS, diaphragm and camera lens.Rear camera 9 can be with
Including sensor 19, such as: CCD or CMOS, diaphragm and camera lens.
Specifically, in this embodiment, the first vertex of the first lens 1 of the preceding lens group that the first camera lens 12 includes to
The distance on two vertex is d1, the third vertex of the first lens 1 of the preceding lens group that the second camera lens 13 includes to the 4th vertex away from
From for d2, and d1=d2.
Wherein, the object side surface for the first lens 1 that the first vertex includes for the optical axis of the first camera lens 12 and the first camera lens 12
Intersection point, the second vertex is the optical axis of the first camera lens 12 and the intersection point of the first camera lens 12 diaphragm 7 for including, and third vertex is second
The intersection point of the object side surface for the first lens 1 that the optical axis of camera lens 13 and the second camera lens 13 include, the 4th vertex are the second camera lens 13
Optical axis and the second camera lens 13 diaphragm 7 for including intersection point.
A kind of auxiliary imaging devices for intelligent terminal provided in this embodiment, by the way that field angle staggered relatively is big
Before two camera lenses of 180 degree are separately positioned on the front camera and rear camera of intelligent terminal, object space is surpassed respectively
Cross the compression of images of 180 degree field angle to 90 degree of field angles image for intelligent terminal front camera and rear camera
It is obtained and is imaged, so as to realize the 4 π radian solid angle total space field angles imaging of intelligent terminal.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention
Protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (8)
1. a kind of auxiliary imaging devices for intelligent terminal characterized by comprising
Camera lens is arranged in front of the camera of intelligent terminal；
The camera lens sequentially includes: preceding lens group, rear lens group and diaphragm to image space from object space, and the field angle of the camera lens
Greater than 180 degree, the position of the diaphragm of the camera lens is overlapped with the position of the camera diaphragm；
Wherein, the preceding lens group is made of the first lens and the second lens, the rear lens group by the third lens, the 4th thoroughly
Mirror, the 5th lens and the 6th lens are constituted, and the preceding lens group is negative refractive rate lens group, and the rear lens group is positive refraction
Rate lens group；
The camera lens meets the following conditions:
1.5≤| f1/f2 |≤2.5,3≤| f1/f12 |≤3.8,3≤| f35/f12 |≤4,
Wherein, f1 is the focal length of first lens, and f2 is the focal length of second lens, and f12 is first lens and institute
The combined focal length of the second lens is stated, f35 is the third lens, the combined focal length of the 4th lens and the 5th lens.
2. imaging device according to claim 1, which is characterized in that the camera lens includes:
First camera lens is arranged in front of the front camera of the intelligent terminal, and the position of the diaphragm of first camera lens with
The position of the diaphragm of the front camera is overlapped；And
Second camera lens is arranged in front of the rear camera of the intelligent terminal, and the position of the diaphragm of second camera lens with
The position of the diaphragm of the rear camera is overlapped；
First camera lens and second camera lens are staggered relatively, and the light of the optical axis of first camera lens and second camera lens
Axis is parallel to each other.
3. imaging device according to claim 2, which is characterized in that the first of the preceding lens group that first camera lens includes
The distance on the first vertex of lens to the second vertex is d1, the third of the first lens of the preceding lens group that second camera lens includes
The distance on vertex to the 4th vertex is d2, and d1=d2,
Wherein, the object space table for the first lens that first vertex includes for the optical axis of first camera lens and first camera lens
The intersection point in face, the intersection point for the diaphragm that second vertex includes for the optical axis of first camera lens and first camera lens are described
The intersection point of the object side surface for the first lens that third vertex includes for the optical axis of second camera lens and second camera lens, it is described
The intersection point for the diaphragm that 4th vertex includes for the optical axis of second camera lens and second camera lens.
4. imaging device according to claim 1, which is characterized in that first lens are negative meniscus, described
Second lens and the 4th lens are double concave negative lens, and the third lens and the 5th lens are lenticular just saturating
Mirror, the 6th lens are positive lens.
5. imaging device according to claim 1, which is characterized in that first lens, second lens, described
Three lens, the 4th lens, the 5th lens and the 6th lens surface be spherical surface.
6. imaging device according to any one of claim 1 to 5, which is characterized in that the camera lens meets the following conditions:
2.5≤| f6/f15 |≤3.5,
Wherein, f6 be the 6th lens focal length, f15 be first lens, second lens, the third lens,
The combined focal length of 4th lens and the 5th lens.
7. imaging device according to any one of claim 1 to 5, which is characterized in that the third lens and described
For the Abbe number of five lens less than 40, the Abbe number of the 4th lens is greater than 40.
8. imaging device according to any one of claim 1 to 5, which is characterized in that the camera lens meets the following conditions:
1.4≤| f35/f3 |≤2.2,1.4≤| f35/f5 |≤2.2,
Wherein, f3 is the focal length of the third lens, and f5 is the focal length of the 5th lens, and f35 is the third lens, described
The combined focal length of 4th lens and the 5th lens.
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| CN201610128448.0A CN105572850B (en) | 2016-03-07 | 2016-03-07 | A kind of auxiliary imaging devices for intelligent terminal |
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| CN201610128448.0A CN105572850B (en) | 2016-03-07 | 2016-03-07 | A kind of auxiliary imaging devices for intelligent terminal |
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| CN105572850B true CN105572850B (en) | 2019-03-29 |
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| WO2019000986A1 (en) | 2017-06-28 | 2019-01-03 | 浙江舜宇光学有限公司 | Optical imaging system |
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| US3604786A (en) * | 1969-07-22 | 1971-09-14 | Polaroid Corp | Compact afocal magnifying lens |
| JP4866630B2 (en) * | 2006-03-02 | 2012-02-01 | アルプス電気株式会社 | Optical device |
| KR100930167B1 (en) * | 2007-09-19 | 2009-12-07 | 삼성전기주식회사 | Ultra wide angle optical system |
| CN204009202U (en) * | 2014-06-05 | 2014-12-10 | 厦门奇亚光电科技有限公司 | A kind of full glass wide-angle lens |
| CN105049569A (en) * | 2015-08-20 | 2015-11-11 | 擎亚国际贸易（上海）有限公司 | Panoramic photo composition method based on front and back cameras of cellphone |
| CN205450424U (en) * | 2016-03-07 | 2016-08-10 | 北京疯景科技有限公司 | A supplementary image device for intelligent terminal |
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