CN108427184A - The big target surface Depth Imaging optical system of co carbonization and its camera module of application - Google Patents
The big target surface Depth Imaging optical system of co carbonization and its camera module of application Download PDFInfo
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- CN108427184A CN108427184A CN201810422458.4A CN201810422458A CN108427184A CN 108427184 A CN108427184 A CN 108427184A CN 201810422458 A CN201810422458 A CN 201810422458A CN 108427184 A CN108427184 A CN 108427184A
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- lens
- optical system
- carbonization
- object plane
- image planes
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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
- G02B13/0055—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
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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
- 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
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B35/00—Stereoscopic photography
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- Optics & Photonics (AREA)
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Abstract
The embodiment of the invention discloses a kind of big target surface Depth Imaging optical systems of co carbonization, include successively from object plane to image planes along optical axis：First lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens.The object plane side of first lens and the second lens is convex surface, and image planes side is concave surface, and focal power is negative；The object plane side of the third lens is convex surface, and image planes side is convex surface, and focal power is just；The object plane side of 4th lens is concave surface, and image planes side is concave surface, and focal power is negative；The object plane side of 5th lens is convex surface, and image planes side is convex surface, and focal power is just；The object plane side of 6th lens is convex surface, and image planes side is convex surface, and focal power is just；Wherein, the 4th lens and the mutually glued formation compound lens of the 5th lens.On the other hand, the embodiment of the present invention additionally provides a kind of camera module.The optical system and camera module of the embodiment of the present invention are mainly made of 6 pieces of lens, simple in structure.
Description
Technical field：
The present invention relates to a kind of optical system and its camera modules of application, especially a kind of to be applied to industry and 3D cameras
In optical system and camera module.
Background technology：
Existing to adapt to for industry and the magazine optical systems of 3D or camera module, generally existing is complicated to ask
Topic.
Invention content：
To overcome, tradition is applied to industry and the magazine optical systems of 3D or camera module generally existing is complicated
Problem, an embodiment of the present invention provides a kind of big target surface Depth Imaging optical systems of co carbonization.
A kind of big target surface Depth Imaging optical system of co carbonization includes successively from object plane to image planes along optical axis：First lens,
Second lens, the third lens, the 4th lens, the 5th lens and the 6th lens.
The object plane side of first lens is convex surface, and image planes side is concave surface, and focal power is negative；
The object plane side of second lens is convex surface, and image planes side is concave surface, and focal power is negative；
The object plane side of the third lens is convex surface, and image planes side is convex surface, and focal power is just；
The object plane side of 4th lens is concave surface, and image planes side is concave surface, and focal power is negative；
The object plane side of 5th lens is convex surface, and image planes side is convex surface, and focal power is just；
The object plane side of 6th lens is convex surface, and image planes side is convex surface, and focal power is just；
Wherein, the 4th lens and the mutually glued formation compound lens of the 5th lens.
On the other hand, the embodiment of the present invention additionally provides a kind of camera module.
A kind of camera module includes at least optical lens, the big target surface of co carbonization described above is equipped in optical lens
Depth Imaging optical system.
The optical system and camera module of the embodiment of the present invention are mainly made of 6 pieces of lens, simple in structure；Using difference
Lens are combined with each other and reasonable distribution focal power, have day and night confocal, big target surface, large aperture, wide-angle Depth Imaging etc. good
Optical property, suitable for industry and 3D Depth Imaging cameras.
Description of the drawings：
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is the optical system of the present invention or the structural schematic diagram of camera lens；
Fig. 2 is the optical system of the present invention or the curvature of field, the distortion curve figure of camera lens；
Fig. 3 is MTF curve figure under the optical system of the present invention or the visible light of camera lens；
Fig. 4 is MTF curve figure under the optical system of the present invention or the 850nm of camera lens.
Specific implementation mode：
In order to make the technical problems, technical solutions and beneficial effects solved by the present invention be more clearly understood, below in conjunction with
Accompanying drawings and embodiments, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used
To explain the present invention, it is not intended to limit the present invention.
When the embodiment of the present invention refers to the ordinal numbers such as " first ", " second ", unless based on context its express really it is suitable
The meaning of sequence, it should be understood that only play differentiation and be used.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
As shown in Figure 1, an embodiment of the present invention provides a kind of big target surface Depth Imaging optical system of co carbonization, along optical axis from
Object plane includes successively to image planes 8：First lens 1, the second lens 2, the third lens 3, the 4th lens 4, the 5th lens 5, Yi Ji
Six lens 6.
The object plane side of first lens 1 is convex surface, and image planes side is concave surface, and focal power is negative；
The object plane side of second lens 2 is convex surface, and image planes side is concave surface, and focal power is negative；
The object plane side of the third lens 3 is convex surface, and image planes side is convex surface, and focal power is just；
The object plane side of 4th lens 4 is concave surface, and image planes side is concave surface, and focal power is negative；
The object plane side of 5th lens 5 is convex surface, and image planes side is convex surface, and focal power is just；
The object plane side of 6th lens 6 is convex surface, and image planes side is convex surface, and focal power is just；
Wherein, the 4th lens 4 and the mutually glued formation compound lens of the 5th lens 5.
The optical system and camera module of the embodiment of the present invention are mainly made of 6 pieces of lens, simple in structure；Using difference
Lens are combined with each other and reasonable distribution focal power, have day and night confocal, big target surface, large aperture, wide-angle Depth Imaging etc. good
Optical property, suitable for industry and 3D Depth Imaging cameras.
Further, non-limiting as the preferred embodiment of this programme, focal length f45 and the entire optics of compound lens
The focal length f of system meets：0<f/f45<0.13.Using the intercombination of different lens and reasonable distribution focal power, have day and night altogether
The favorable optical performances such as burnt, big target surface, large aperture, wide-angle Depth Imaging.
Still further, non-limiting as the specific implementation mode of this programme, optical system meets following condition：
(1)-0.31<f/f1<-0.25；
(2)-0.40<f/f2<-0.34；
(3)0.43<f/f3<0.51；
(4)0<f/f45<0.13；
(5)0.29<f/f6<0.36；
Wherein, f1 is the focal length of the first lens 1, and f2 is the focal length of the second lens 2, and f3 is the focal length of the third lens 3, f45
For the focal length of the focal length of compound lens, f6 is the focal length of the 6th lens 6, and f is the focal length of entire optical system.Using different lens
Intercombination and reasonable distribution focal power have the good opticals such as day and night confocal, big target surface, large aperture, wide-angle Depth Imaging
Performance.
Further, non-limiting as the preferred embodiment of this programme, the Refractive Index of Material Nd1 of the first lens 1,
Material Abbe constant Vd1 meets：Nd1 ＞ 1.80, Vd1 ＜ 50.It is simple in structure, it is ensured that good optical property.
Further, non-limiting as the preferred embodiment of this programme, the Refractive Index of Material Nd2 of the second lens 2,
Material Abbe constant Vd2 meets：Nd2 ＜ 1.56, Vd2 ＞ 55.It is simple in structure, it is ensured that good optical property.
Still further, it is non-limiting as the preferred embodiment of this programme, the Refractive Index of Material Nd3 of the third lens 3,
Material Abbe constant Vd3 meets：Nd3 ＞ 1.90, Vd3 ＜ 36.It is simple in structure, it is ensured that good optical property.
Further, non-limiting as the preferred embodiment of this programme, the Refractive Index of Material Nd4 of the 4th lens 4,
Material Abbe constant Vd4 meets：Nd4 ＞ 1.92, Vd4 ＜ 20.It is simple in structure, it is ensured that good optical property.
Further, non-limiting as the preferred embodiment of this programme, the Refractive Index of Material Nd5 of the 5th lens 5,
Material Abbe constant Vd5 meets：Nd5 ＞ 1.80, Vd5 ＜ 50.It is simple in structure, it is ensured that good optical property.
Still further, it is non-limiting as the preferred embodiment of this programme, the Refractive Index of Material Nd6 of the 6th lens 6,
Material Abbe constant Vd6 meets：Nd6 ＜ 1.56, Vd6 ＞ 55.It is simple in structure, it is ensured that good optical property.
Further, non-limiting as the specific implementation mode of this programme, aperture diaphragm 7 be located at the third lens 3 with
Between 4th lens 4, close to 3 side of the third lens.It is simple in structure, for adjusting the intensity of light beam.
Further, non-limiting as the specific implementation mode of this programme, the second lens 2 and the 6th lens 6 are
Plastic aspheric lenes.Mixing is moulded using glass to constitute, and optimizes lens performance while cost is reduced.
Specifically, in the present embodiment, this optical system matches 1/2.3 inch of 3D sensor, focal length f=3.33mm,
F/NO=1.3, DFOV=130 °, TTL=25.8mm.Every basic parameter of this optical system is as shown in the table：
In upper table, along optical axis from object plane to image planes, S1, S2 correspond to two surfaces of the first lens 1；S3, S4 are corresponded to
Two surfaces of the second lens 2；S5, S6 correspond to two surfaces of the third lens 3；STO is diaphragm；S8, S9 correspond to the 4th
Two surfaces of lens 4；S9, S10 correspond to two surfaces of the 5th lens 5；S11, S12 correspond to two of the 6th lens 6
Surface；S13 is the object plane side surface of the bandpass filter between the 6th lens 6 and image planes 8.
More specifically, the surface of second lens, 2 and the 6th lens 6 is aspherical shape, meet following equation
Formula：
Wherein, parameter c=1/R, the as curvature corresponding to radius, y are radial coordinate, unit and length of lens unit phase
Together, k is circular cone whose conic coefficient, a1To a8Coefficient corresponding to respectively each radial coordinate.The S3 tables of second lens 2
The aspherical correlation values on face and the surfaces S11 and the surfaces S12 of the surfaces S4 and the 6th lens 6 are as shown in the table：
| K | α1 | α2 | α3 | α4 | α5 | α6 | |
| S3 | -77.7531 | 0 | 0.001293 | -2.154E-03 | 8.645E-05 | -1.737E-06 | 1.151E-08 |
| S4 | -0.5600 | 0 | 0.001480 | -1.044E-03 | -1.053E-04 | 8.593E-08 | -1.995E-07 |
| S11 | -1.5828 | 0 | -4.239E-04 | 2.588E-04 | -8.739E-06 | 3.325E-07 | -7.721E-09 |
| S12 | 1.06770 | 0 | 0.001083 | -1.243E-04 | 2.198E-05 | -7.683E-07 | 4.931E-09 |
In from Fig. 2 to Fig. 4 as can be seen that the present embodiment in optical system have day and night confocal, big target surface, large aperture,
The favorable optical performances such as wide-angle Depth Imaging.
A kind of camera module includes at least optical lens, the big target surface of co carbonization described above is equipped in optical lens
Depth Imaging optical system.
The optical system and camera module of the embodiment of the present invention are mainly made of 6 pieces of lens, simple in structure；Using difference
Lens are combined with each other and reasonable distribution focal power, have day and night confocal, big target surface, large aperture, wide-angle Depth Imaging etc. good
Optical property, suitable for industry and 3D Depth Imaging cameras.
It is as described above the one or more embodiments for combining particular content to provide, does not assert the specific reality of the present invention
It applies and is confined to these explanations.It is all approximate with method of the invention, structure etc., identical, or for present inventive concept under the premise of
Several technology deduction or replace are made, protection scope of the present invention is all should be considered as.
Claims (10)
1. a kind of big target surface Depth Imaging optical system of co carbonization, includes successively from object plane to image planes along optical axis：First lens,
Two lens, the third lens, the 4th lens, the 5th lens and the 6th lens；It is characterized in that,
The object plane side of first lens is convex surface, and image planes side is concave surface, and focal power is negative；
The object plane side of second lens is convex surface, and image planes side is concave surface, and focal power is negative；
The object plane side of the third lens is convex surface, and image planes side is convex surface, and focal power is just；
The object plane side of 4th lens is concave surface, and image planes side is concave surface, and focal power is negative；
The object plane side of 5th lens is convex surface, and image planes side is convex surface, and focal power is just；
The object plane side of 6th lens is convex surface, and image planes side is convex surface, and focal power is just；
Wherein, the 4th lens and the mutually glued formation compound lens of the 5th lens.
2. the big target surface Depth Imaging optical system of co carbonization as described in claim 1, which is characterized in that the focal length of compound lens
F45 and the focal length f of entire optical system meet：0<f/f45<0.13.
3. the big target surface Depth Imaging optical system of co carbonization as described in claim 1, which is characterized in that optical system meets such as
Lower condition：
(1)-0.31<f/f1<-0.25；
(2)-0.40<f/f2<-0.34；
(3)0.43<f/f3<0.51；
(4)0<f/f45<0.13；
(5)0.29<f/f6<0.36；
Wherein, f1 is the focal length of the first lens, and f2 is the focal length of the second lens, and f3 is the focal length of the third lens, and f45 is that combination is saturating
The focal length of the focal length of mirror, f6 are the focal length of the 6th lens, and f is the focal length of entire optical system.
4. the big target surface Depth Imaging optical system of co carbonization as claimed in claim 1,2 or 3, which is characterized in that the first lens
Refractive Index of Material Nd1, material Abbe constant Vd1 meet：Nd1 ＞ 1.80, Vd1 ＜ 50.
5. the big target surface Depth Imaging optical system of co carbonization as claimed in claim 1,2 or 3, which is characterized in that the second lens
Refractive Index of Material Nd2, material Abbe constant Vd2 meet：Nd2 ＜ 1.56, Vd2 ＞ 55.
6. the big target surface Depth Imaging optical system of co carbonization as claimed in claim 1,2 or 3, which is characterized in that the third lens
Refractive Index of Material Nd3, material Abbe constant Vd3 meet：Nd3 ＞ 1.90, Vd3 ＜ 36.
7. the big target surface Depth Imaging optical system of co carbonization as claimed in claim 1,2 or 3, which is characterized in that the 4th lens
Refractive Index of Material Nd4, material Abbe constant Vd4 meet：Nd4 ＞ 1.92, Vd4 ＜ 20.
8. the big target surface Depth Imaging optical system of co carbonization as claimed in claim 1 or 2, which is characterized in that the 5th lens
Refractive Index of Material Nd5, material Abbe constant Vd5 meet：Nd5 ＞ 1.80, Vd5 ＜ 50.
9. the big target surface Depth Imaging optical system of co carbonization as claimed in claim 1 or 2, which is characterized in that the 6th lens
Refractive Index of Material Nd6, material Abbe constant Vd6 meet：Nd6 ＜ 1.56, Vd6 ＞ 55.
10. a kind of camera module includes at least optical lens, which is characterized in that be equipped with claim 1-9 in optical lens and appoint
The big target surface Depth Imaging optical system of co carbonization described in one.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810422458.4A CN108427184B (en) | 2018-05-05 | 2018-05-05 | Co-coking large target surface depth imaging optical system and camera module applied by same |
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| CN201810422458.4A CN108427184B (en) | 2018-05-05 | 2018-05-05 | Co-coking large target surface depth imaging optical system and camera module applied by same |
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| CN108427184B CN108427184B (en) | 2023-06-20 |
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Cited By (2)
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| CN109343201A (en) * | 2018-11-07 | 2019-02-15 | 中国航空工业集团公司洛阳电光设备研究所 | The low distortion wide-angle long wave uncooled ir optical system of PASSIVE OPTICAL athermal |
| CN109407279A (en) * | 2018-12-12 | 2019-03-01 | 江西联创电子有限公司 | Wide-angle lens and imaging device |
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| US20160004046A1 (en) * | 2013-03-27 | 2016-01-07 | Taro Asami | Imaging lens and imaging apparatus |
| CN107843977A (en) * | 2017-12-14 | 2018-03-27 | 浙江舜宇光学有限公司 | Optical imaging lens |
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| US20160004046A1 (en) * | 2013-03-27 | 2016-01-07 | Taro Asami | Imaging lens and imaging apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109343201A (en) * | 2018-11-07 | 2019-02-15 | 中国航空工业集团公司洛阳电光设备研究所 | The low distortion wide-angle long wave uncooled ir optical system of PASSIVE OPTICAL athermal |
| CN109343201B (en) * | 2018-11-07 | 2021-03-05 | 中国航空工业集团公司洛阳电光设备研究所 | Low-distortion wide-angle long-wave uncooled infrared optical system for optical passive heat difference elimination |
| CN109407279A (en) * | 2018-12-12 | 2019-03-01 | 江西联创电子有限公司 | Wide-angle lens and imaging device |
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