CN106772961A - A kind of pixel high, low cost, infrared completely confocal varifocal optical system - Google Patents
A kind of pixel high, low cost, infrared completely confocal varifocal optical system Download PDFInfo
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- CN106772961A CN106772961A CN201710168397.9A CN201710168397A CN106772961A CN 106772961 A CN106772961 A CN 106772961A CN 201710168397 A CN201710168397 A CN 201710168397A CN 106772961 A CN106772961 A CN 106772961A
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- lens
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- optical system
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- 230000003287 optical effect Effects 0.000 title claims abstract description 26
- 239000011521 glass Substances 0.000 claims description 9
- 239000003292 glue Substances 0.000 claims description 5
- 230000004075 alteration Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000009885 systemic effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000004304 visual acuity Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/14—Optical objectives specially designed for the purposes specified below for use with infrared or ultraviolet radiation
- G02B13/146—Optical objectives specially designed for the purposes specified below for use with infrared or ultraviolet radiation with corrections for use in multiple wavelength bands, such as infrared and visible light, e.g. FLIR systems
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B15/00—Optical objectives with means for varying the magnification
- G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
- G02B15/142—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having two groups only
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B15/00—Optical objectives with means for varying the magnification
- G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
- G02B15/16—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group
- G02B15/177—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group having a negative front lens or group of lenses
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Lenses (AREA)
Abstract
The invention discloses a kind of pixel high, low cost, infrared completely confocal varifocal optical system, it is disposed with from object plane to image planes：The first lens group that the relative image planes of energy are moved forward and backward, the focal power of first lens group is that the first negative, described lens group includes first lens, the second lens and the 3rd lens；Optical filter；Diaphragm；The second lens group that the relative image planes of energy are moved forward and backward, the focal power of second lens group is for just, the second lens group includes the 4th lens, the 5th lens, the 6th lens, the 7th lens, the 8th lens, the 9th lens and the tenth lens.Simple structure of the present invention, pixel is high, high resolution, with low cost, it is ensured that each multiplying power section high/low temperature it is complete confocal.
Description
【Technical field】
The present invention relates to optical system, especially a kind of pixel high, low cost, infrared completely confocal Zoom optical system
System.
【Background technology】
Current monitoring, shortcoming as the variable focal length optical system generally existing of exhibition booth:System cost is high, and resolution ratio is inclined
Low, aperture is small, it cannot be guaranteed that infrared complete confocal etc. of each focal length in zooming procedure.In the market also without camera lens
Disadvantages mentioned above can simultaneously be overcome, only a small number of camera lenses, in terms of certain is improved in the case of sacrificing other side, such as in order to
Pixel high, infrared confocal is realized, system bulk and cost must be increased；Far can not meet monitoring, exhibition booth require low cost, as
Element reality high.
Therefore, the present invention is based on the not enough of the above and produces.
【The content of the invention】
The technical problem to be solved in the present invention is to provide a kind of pixel high, low cost, infrared completely confocal Zoom optical
System, the systemic resolution is high, low cost, it is infrared completely it is confocal.
In order to solve the above technical problems, present invention employs following technical proposals：It is a kind of pixel high, low cost, infrared complete
Complete confocal varifocal optical system, it is characterised in that be disposed with from object plane to image planes：
Can the first lens group for moving forward and backward of relative image planes, the focal power of first lens group be it is negative, described first
Lens group includes first lens, the second lens and the 3rd lens；
Optical filter；
Diaphragm；
The second lens group that the relative image planes of energy are moved forward and backward, the focal power of second lens group is just the second lens group
Including the 4th lens, the 5th lens, the 6th lens, the 7th lens, the 8th lens, the 9th lens and the tenth lens.
A kind of pixel high as described above, low cost, infrared completely confocal varifocal optical system, it is characterised in that：Institute
State the second lens to be bonded by optical glue with the 3rd lens, the 8th lens and the 9th lens pass through optical cement
Water is bonded.
A kind of pixel high as described above, low cost, infrared completely confocal varifocal optical system, it is characterised in that：Institute
The 4th lens, the 5th lens, the 7th lens, the tenth lens are stated using plastic aspherical element eyeglass；It is first lens, second saturating
Mirror, the 3rd lens, the 6th lens, the 8th lens, the 9th lens use glass spheric glass.
Compared with prior art, pixel high of the invention, low cost, infrared completely confocal varifocal optical system, reach
Following effect：
1st, in the market most of zoom lens in order to realize pixel high and infrared as far as possible confocal and employ more
Glass lens, or even employ Glass aspheric eyeglass；Present invention employs a small amount of glass sphere and plastic aspherical element eyeglass,
Significantly reduce cost.
2nd, zoom lens common in the market switches to infrared generally under the situation that visible waveband is focused completely
Imaging pattern can decline to a great extent as matter；The present invention realizes the complete confocal of visible waveband and infrared band, it is ensured that visible ripple
The imaging definition of section and infrared band.
3rd, under most of zoom lens occurs normal temperature focusing situation in the market, high/low temperature occurs empty Jiao, hair
The situation of illiteracy；This invention ensures that each multiplying power section high/low temperature is complete confocal.
4th, the pixel of big ratio zoom lens most of in the market is relatively low, is usually expressed as being differentiated under high power state
Rate is low, or center resolution is high, and periphery is low, and resolution ratio of the invention is very high, and the whole process from low power to high power can
Enough photograph that whole picture is clear, the image of high-contrast.
【Brief description of the drawings】
Specific embodiment of the invention is described in further detail below in conjunction with the accompanying drawings, wherein：
Fig. 1 is schematic diagram of the present invention；
Brief description of the drawings：1st, the first lens；2nd, the second lens；3rd, the 3rd lens；4th, optical filter；5th, diaphragm；6th, the 4th lens；
7th, the 5th lens；8th, the 6th lens；9th, the 7th lens；10th, the 8th lens；11st, the 9th lens；12nd, the tenth lens；13rd, image planes.
【Specific embodiment】
Embodiments of the present invention are elaborated below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of pixel high, low cost, infrared confocal varifocal optical system completely, from object plane to image planes according to
It is secondary to be provided with：Can the first lens group for moving forward and backward of relative image planes 13, the focal power of first lens group be it is negative, described the
One lens group includes first lens 1, the second lens 2 and the 3rd lens 3；
Optical filter 4；
Diaphragm 5；
The second lens group that the relative image planes 13 of energy are moved forward and backward, the focal power of second lens group is just the second lens
Group includes the 4th lens 6, the 5th lens 7, the 6th lens 8, the 7th lens 9, the 8th lens 10, the 9th lens 11 and the tenth
Lens 12.
As shown in figure 1, in the present embodiment, second lens 2 are bonded with the 3rd lens 3 by optical glue,
8th lens 10 and the 9th lens 11 are bonded by optical glue.
As shown in figure 1, in the present embodiment, the 4th lens 6, the 5th lens 7, the 7th lens 9, the tenth lens 12 are adopted
Use plastic aspherical element eyeglass；First lens 1, the second lens 2, the 3rd lens 3, the 6th lens 8, the 8th lens the 10, the 9th
Lens 11 use glass spheric glass.
The present invention realizes infrared complete confocal, and different eyeglass material refractive indexes and Abbe number have been taken into full account during design
Complementation, ensure visible waveband aberration it is less in the case of, while ensure infrared band solution as effect；Realize eyeglass material
Perfection collocation.
The present invention realizes high-resolution, conjugate distance knots modification and second lens group longitudinal direction of the design using the first lens group
Conjugate distance knots modification after amplification is offseted, and realizes that image planes are compensated；First lens group is coordinated using simple lens and balsaming lens
Use, the first auxiliary light is had trend well, but also it is poor to correct the spherical aberration and sine of high power position.Second
The eyeglass of lens group coordinates, and perfect chromatic aberration correction structure is belonged on the premise of light smooth transition is ensured.Not only eliminate
The aberration of whole system, also balances the aberration of whole system very well.Finally, certain vignetting is set, is shone image planes are not influenceed
In the case of degree, moreover it is possible to block periphery spurious rays, while making image plane center high resolution, also there is resolution very high at edge
Rate.
The present invention realizes that system cost reduction and high/low temperature are confocal, and each plastic material refraction has been taken into full account in design process
Rate, the change of Abbe number high/low temperature match the change of face type simultaneously, the matching of each key element of high/low temperature are realized, so as to realize height
The fixation of image planes and clear when warm.
Wide spectrum is used during present invention design, and the theoretical resolving power of design is far above theoretical demand value, it is ensured that image
Sharpness and color reducibility.
The actual design case of the zoom is set forth below：
The asphericity coefficient in each face：
| k | a2 | a3 | a4 | a5 | |
| S7 | -1.1 | 3.5E-005 | -3.1E-006 | 5.6E-0010 | -2.8E-009 |
| S8 | -12 | 4.2E-004 | -1.6E-005 | 1.7E-007 | -3.3E-9 |
| S9 | 8 | 9.9E-004 | -5.3E-006 | 1.73E-007 | 1.3E-008 |
| S10 | 99.3 | 1.42E-003 | -6.1E-006 | 2.84E-007 | 1.53E-008 |
| S13 | -17 | -2E-004 | -9E-006 | 1.82E-007 | -2.7E-008 |
| S14 | -0.3 | -5.3E-004 | 3.1E-006 | 1.72E-006 | -1.32E-007 |
| S18 | -7.1 | 2.8E-004 | -1.2E-004 | -3.1E-007 | 5E-008 |
| S19 | 500 | -2.3E-004 | -2.83E-005 | -9.63E-006 | 1.32E-006 |
Wherein equation：
In the inverse of c respective radius R be：1/R.
Zoom moving range between lens group：
First lens group is to the interval 13.021-0.921mm between diaphragm；
Diaphragm is to the interval 8.15-0.321mm between the second lens group.
Claims (3)
1. a kind of pixel high, low cost, infrared confocal varifocal optical system completely, it is characterised in that from object plane to image planes according to
It is secondary to be provided with：
Can the first lens group for moving forward and backward of relative image planes (13), the focal power of first lens group be it is negative, described first
Lens group includes first lens (1), the second lens (2) and the 3rd lens (3)；
Optical filter (4)；
Diaphragm (5)；
The second lens group that the relative image planes (13) of energy are moved forward and backward, the focal power of second lens group is just the second lens group
Including the 4th lens (6), the 5th lens (7), the 6th lens (8), the 7th lens (9), the 8th lens (10), the 9th lens
And the tenth lens (12) (11).
2. a kind of pixel high according to claim 1, low cost, infrared confocal varifocal optical system, its feature completely
It is：Second lens (2) and the 3rd lens (3) are bonded by optical glue, the 8th lens (10) and described
9th lens (11) are bonded by optical glue.
3. a kind of pixel high according to claim 2, low cost, infrared confocal varifocal optical system, its feature completely
It is：4th lens (6), the 5th lens (7), the 7th lens (9), the tenth lens (12) use plastic aspherical element eyeglass；
First lens (1), the second lens (2), the 3rd lens (3), the 6th lens (8), the 8th lens (10), the 9th lens (11)
Using glass spheric glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710168397.9A CN106772961A (en) | 2017-03-21 | 2017-03-21 | A kind of pixel high, low cost, infrared completely confocal varifocal optical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710168397.9A CN106772961A (en) | 2017-03-21 | 2017-03-21 | A kind of pixel high, low cost, infrared completely confocal varifocal optical system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106772961A true CN106772961A (en) | 2017-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710168397.9A Pending CN106772961A (en) | 2017-03-21 | 2017-03-21 | A kind of pixel high, low cost, infrared completely confocal varifocal optical system |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110376719A (en) * | 2019-08-16 | 2019-10-25 | 杭州图谱光电科技有限公司 | A kind of high big target surface of pixel number large aperture day and night confocal camera lens |
| CN113759498A (en) * | 2020-06-02 | 2021-12-07 | 华为技术有限公司 | Optical lens and optical system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2371120A (en) * | 2001-01-11 | 2002-07-17 | Asahi Seimitsu Kk | Two group zoom lens with negative front lens group |
| CN105467565A (en) * | 2015-12-19 | 2016-04-06 | 中山联合光电科技股份有限公司 | High-and-low temperature infrared confocal high pixel little-distortion small-volume zooming optical system |
-
2017
- 2017-03-21 CN CN201710168397.9A patent/CN106772961A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2371120A (en) * | 2001-01-11 | 2002-07-17 | Asahi Seimitsu Kk | Two group zoom lens with negative front lens group |
| CN105467565A (en) * | 2015-12-19 | 2016-04-06 | 中山联合光电科技股份有限公司 | High-and-low temperature infrared confocal high pixel little-distortion small-volume zooming optical system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110376719A (en) * | 2019-08-16 | 2019-10-25 | 杭州图谱光电科技有限公司 | A kind of high big target surface of pixel number large aperture day and night confocal camera lens |
| CN110376719B (en) * | 2019-08-16 | 2024-02-20 | 杭州图谱光电科技有限公司 | High-pixel-number large-aperture large-target-surface day and night confocal lens |
| CN113759498A (en) * | 2020-06-02 | 2021-12-07 | 华为技术有限公司 | Optical lens and optical system |
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Application publication date: 20170531 |