CN110488457A - A kind of periscope type lens - Google Patents
A kind of periscope type lens Download PDFInfo
- Publication number
- CN110488457A CN110488457A CN201910645276.8A CN201910645276A CN110488457A CN 110488457 A CN110488457 A CN 110488457A CN 201910645276 A CN201910645276 A CN 201910645276A CN 110488457 A CN110488457 A CN 110488457A
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- CN
- China
- Prior art keywords
- lens
- light
- mirror
- periscope type
- irradiated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0055—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element
- G02B13/006—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element at least one element being a compound optical element, e.g. cemented elements
-
- 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
- G02B13/0055—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element
- G02B13/0065—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element having a beam-folding prism or mirror
Abstract
The invention discloses a kind of periscope type lens, including the first lens, second lens, the third lens, 4th lens, 5th lens, 6th lens, 7th lens and the 8th lens, the light of each visual field starts to be irradiated to the first lens, it is irradiated on the non-ball mirror that degree of being inclined to is placed from passing through to collect in the first lens, light is irradiated on the second lens after the reflection of non-ball mirror, light is pooled to the 5th lens after the combination of the third lens and the 4th lens, light is mapped to the combination of the 6th lens and the 7th lens by the 5th lens entrance again, light is by the 6th lens, 7th lens, 8th lens, finally by the 8th lens imaging to focal plane.Plane mirror is improved to the non-ball mirror of high order by the present invention, in the case where the present invention quotes camera lens, is reached under suitable MTF, can effectively be cut 1 lens, and 1 aspherical, is effectively reduced the development cost of camera lens and is reduced structure.
Description
Technical field
The present invention relates to periscope type lens technical field, in particular to a kind of periscope type lens.
Background technique
It with the universal of mobile phone and rapidly develops, demand of the people to mobile phone camera constantly rises, and simple number is put
Greatly, it is no longer satisfied the demand of people, improves optical magnification into urgent demand, optical zoom camera lens recent years
It is begun to focus on by cell phone manufacturer, and gradually there is the product of 10 Zoom Lens to release.However zoom lens will lead to camera lens
Length, so if through-thickness arrangement in lens length direction virtually increases the thickness of mobile phone, in camera lens end
Add 45 degree of reflecting mirrors, it is parallel with mobile phone in-plane that this periscope type lens make lens length direction, and then has broken mobile phone thickness
The limitation to lens length is spent, therefore periscope type lens recent years are formally widely used on zoom mobile lens.
Currently, this zoom lens needs many piece aspheric lens combination designs just to can satisfy final required high optics
Amplification factor and growing high pixel request.Therefore to camera lens cost and structure size, weight etc., higher want is proposed
Summation challenge.
Summary of the invention
The purpose of the present invention is to provide a kind of periscope type lens, the present invention is by improving 45 degree of reflections on periscope type lens
Mirror reduces lens element number and aspherical quantity, thus reduce the cost of camera lens exploitation and simplify structure, reduce weight, with
Solve that camera lens mentioned above in the background art is at high cost, the big problem of the big weight of structure size.
To achieve the above object, the invention provides the following technical scheme:
A kind of periscope type lens, including the first lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens,
7th lens and the 8th lens, the light of each visual field are irradiated to the first lens, pass through from the first lens and collect and be irradiated to inclination
On the non-ball mirror placed at degree, light is irradiated on the second lens after the reflection of non-ball mirror, and light passes through third
The 5th lens are pooled to after the combination of lens and the 4th lens, light is again by the 5th lens entrance to the 6th lens and the 7th
The combination of lens, light by the 6th lens and the 7th lens dispersion be irradiated to the 8th lens, finally by the 8th lens at
As arriving focal plane.
Further, the one side of first lens is plane, and the one side opposite with plane is concave surface.
Further, the one side of second lens is plane, and the one side opposite with plane is convex surface.
Further, the cross section of the third lens is arcuate structure, the 4th lens and the third lens match group plastic
Close lens.
Further, the two sides that the 5th lens pass through for light is toward outer lug.
Further, the cross section of the 6th lens is arcuate structure, the 7th lens and the 6th lens match group plastic
Close lens.
Further, the cross section of the 8th lens is arcuate structure.
Compared with prior art, the beneficial effects of the present invention are:
1. periscope type lens proposed by the present invention, after reflecting mirror is changed to aspherical mirror, optical system is left 9 mirrors,
It is aspherical comprising 10 altogether including 1 non-ball mirror and 8 lens (two panels balsaming lens), and existing light is adopted
With 10 mirrors (two panels balsaming lens), wherein include 1 plane mirror, 9 lens, 11 high order aspheric surfaces, therefore
Reduce element, reduces aspherical number, reduce costs, alleviate weight, simplify assembly difficulty.
2. 45 degree of plane mirrors are changed to aspheric reverse side mirror, do not increase light by periscope type lens proposed by the present invention
Structure size, and not will increase the element number of former light.
3. periscope type lens proposed by the present invention, to material requirement is not high, processing selection flexibly, can be used non-ball mirror
Press mold aspheric technology, batch easy to accomplish and reduces cost.
Detailed description of the invention
Fig. 1 is lens construction schematic diagram of the invention；
Fig. 2 is that camera lens MTF of the invention schemes；
Fig. 3 is design parameter schematic diagram of the invention；
Fig. 4 is the lens construction schematic diagram before optimization；
Fig. 5 is the camera lens MTF figure before optimization.
In figure: 1, the first lens；2, the second lens；3, the third lens；4, the 4th lens；5, the 5th lens；6, the 6th thoroughly
Mirror；7, the 7th lens；8, the 8th lens；9, non-ball mirror.
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 clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
A kind of periscope type lens, structure such as Fig. 1, including the first lens 1, the second lens 2, the third lens 3, the 4th lens 4,
The light irradiation of 5th lens 5, the 6th lens 6, the 7th lens 7 and the 8th lens 8, each visual field starts to be irradiated to the first lens 1,
The one side of first lens 1 is plane, and the one side opposite with plane is concave surface, can guarantee to converge on non-ball mirror 9, from the
It is passed through in one lens 1 on the non-ball mirror 9 for collecting and being irradiated to and being inclined to 45 degree of placements, 45 degree of plane mirrors is changed to aspheric
Reverse side mirror does not increase the structure size of light, and not will increase the element number of former light, and non-ball mirror 9 wants material
Ask not high, flexibly, press mold aspheric technology can be used in processing selection, batch easy to accomplish and reduces cost, and light is anti-by aspheric
It penetrates after mirror 9 reflects in parallel radiation to the second lens 2, the one side of the second lens 2 is plane, and the one side opposite with plane is convex
Face, can guarantee light is converged to length less than the second lens 2 the third lens 3 and the 4th lens 4, and light is saturating by third
Be pooled to the 5th lens 5 after the combination of mirror 3 and the 4th lens 4, the cross section of the third lens 3 is arcuate structure, the 4th lens 4 with
3 match group of the third lens is at balsaming lens, and the two sides that the 5th lens 5 pass through for light is toward outer lug, and light is again by the 5th
Lens 5 are incident on the combination of the 6th lens 6 and the 7th lens 7, and the cross section of the 6th lens 6 is arcuate structure, the 7th lens 7 with
6th lens, 6 match group is irradiated to the 8th lens 8 by the 6th lens 6 and the dispersion of the 7th lens 7 at balsaming lens, light, finally
It is dispersed into light beam group outward by the 8th lens 8, it is in order to which length is less than in this way that the cross section of the 8th lens 8, which is arcuate structure,
Light can be irradiated to the 8th lens 8 by the 6th lens 6 and the 7th lens 7 of the 8th lens 8.
Such as Fig. 1, after the present invention is by being changed to aspherical mirror for reflecting mirror, optical system is left 9 mirrors, including 1
The non-ball mirror of piece and 8 lens, wherein two panels balsaming lens i.e. the 4th lens 4 match the gluing of composition with the third lens 3 thoroughly
Mirror and the 7th lens 7 match the balsaming lens of composition with the 6th lens 6, aspherical comprising 10 altogether.
Under comparing, traditional lens construction such as Fig. 4, former light uses 10 mirrors (two panels balsaming lens),
In include 1 plane mirror, 9 lens, 11 high order aspheric surfaces.Therefore the present invention reduces element than traditional camera lens,
Reduce aspherical number, reduce costs, alleviate weight, simplify assembly difficulty, traditional camera lens MTF is as shown in Figure 5.
MTF distribution of the invention is as shown in Fig. 2, from the point of view of MTF evaluation, in the case of MTF is not much different, by reflecting mirror
It is changed to after aspherical mirror effectively simplify the complexity of camera lens.The present invention provides the design ginseng of the camera lens case after optimization
Number, such as Fig. 3.
Difference with the prior art of the present invention is: the present invention has been carried out excellent by the face type to 45 degree of reflecting mirrors of periscopic
Change, it is found that the more other lens of face type in the face can significantly affect entire lens imaging effect, therefore plane mirror is improved
For the non-ball mirror of high order.It was found that reaching under suitable MTF in the case where the present invention quotes camera lens, can effectively cutting 1 lens, 1 non-
Spherical surface effectively reduces the development cost and structure of camera lens.
In conclusion periscope type lens proposed by the present invention, the present invention by the face type to 45 degree of reflecting mirrors of periscopic into
It has gone optimization, it is found that the more other lens of face type in the face can significantly affect entire lens imaging effect, therefore by plane reflection
Mirror is improved to the non-ball mirror of high order.It was found that reaching under suitable MTF in the case where the present invention quotes camera lens, 1 can be effectively cut thoroughly
Mirror, 1 aspherical, effectively reduces the development cost of camera lens and reduces structure.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art within the technical scope of the present disclosure, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (7)
1. a kind of periscope type lens, which is characterized in that including the first lens (1), the second lens (2), the third lens (3), the 4th
Lens (4), the 5th lens (5), the 6th lens (6), the 7th lens (7) and the 8th lens (8), the light of each visual field are irradiated to
One lens (1), from being passed through on the non-ball mirror (9) for collecting and being irradiated to and being inclined to 45 degree of placements in the first lens (1), light is passed through
It is irradiated on the second lens (2) after crossing non-ball mirror (9) reflection, light passes through the group of the third lens (3) and the 4th lens (4)
It is pooled to the 5th lens (5) after conjunction, light is incident on the 6th lens (6) and the 7th lens (7) by the 5th lens (5) again
Combination, light are finally imaged by the 8th lens (8) by the 6th lens (6), the 7th lens (7), the 8th lens (8)
Focal plane.
2. a kind of periscope type lens according to claim 1, which is characterized in that the one side of first lens (1) is flat
Face, the one side opposite with plane are concave surface.
3. a kind of periscope type lens according to claim 1, which is characterized in that the one side of second lens (2) is flat
Face, the one side opposite with plane are convex surface.
4. a kind of periscope type lens according to claim 1, which is characterized in that the cross section of the third lens (3) is
Arcuate structure, the 4th lens (4) and the third lens (3) match group are at balsaming lens.
5. a kind of periscope type lens according to claim 1, which is characterized in that the 5th lens (5) are logical for light
The two sides crossed is toward outer lug.
6. a kind of periscope type lens according to claim 1, which is characterized in that the cross section of the 6th lens (6) is
Arcuate structure, the 7th lens (7) and the 6th lens (6) match group are at balsaming lens.
7. a kind of periscope type lens according to claim 1, which is characterized in that the cross section of the 8th lens (8) is
Arcuate structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910645276.8A CN110488457A (en) | 2019-07-17 | 2019-07-17 | A kind of periscope type lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910645276.8A CN110488457A (en) | 2019-07-17 | 2019-07-17 | A kind of periscope type lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110488457A true CN110488457A (en) | 2019-11-22 |
Family
ID=68547339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910645276.8A Pending CN110488457A (en) | 2019-07-17 | 2019-07-17 | A kind of periscope type lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110488457A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203376516U (en) * | 2013-07-10 | 2014-01-01 | 中山联合光电科技有限公司 | Optical zoom system with high definition, small size and low cost |
| CN105467560A (en) * | 2016-01-20 | 2016-04-06 | 北京疯景科技有限公司 | Lens and imaging device |
| CN107092078A (en) * | 2017-06-27 | 2017-08-25 | 中山联合光电科技股份有限公司 | A kind of reflective panorama optical imaging system |
-
2019
- 2019-07-17 CN CN201910645276.8A patent/CN110488457A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203376516U (en) * | 2013-07-10 | 2014-01-01 | 中山联合光电科技有限公司 | Optical zoom system with high definition, small size and low cost |
| CN105467560A (en) * | 2016-01-20 | 2016-04-06 | 北京疯景科技有限公司 | Lens and imaging device |
| CN107092078A (en) * | 2017-06-27 | 2017-08-25 | 中山联合光电科技股份有限公司 | A kind of reflective panorama optical imaging system |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 350015 five floors and three floors of building a and building B, building 1, Chashan Road, Mawei science and Technology Park, Fuzhou City, Fujian Province (within the free trade zone) Applicant after: Tengjing Technology Co., Ltd Address before: 350015 five floors and three floors of building a and building B, building 1, Chashan Road, Mawei science and Technology Park, Fuzhou City, Fujian Province (within the free trade zone) Applicant before: FUZHOU TENGJING OPTOELECTRONICS TECHNOLOGY CO., LTD. |
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| CB02 | Change of applicant information |