CN207937679U - With the low optical system according to effect of optimization - Google Patents
With the low optical system according to effect of optimization Download PDFInfo
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- CN207937679U CN207937679U CN201820213432.4U CN201820213432U CN207937679U CN 207937679 U CN207937679 U CN 207937679U CN 201820213432 U CN201820213432 U CN 201820213432U CN 207937679 U CN207937679 U CN 207937679U
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Abstract
It is a kind of that there is the low optical system according to effect of optimization, include successively from the object side to image side：The first eyeglass group with positive light coke, the second eyeglass group with negative power, aperture diaphragm, the third eyeglass group with positive light coke, the 4th eyeglass group with negative power, the 5th eyeglass group with positive light coke and double photoreception of spectrum mechanisms, wherein：First eyeglass group and the 5th eyeglass group are fixed setting, the second eyeglass group, aperture diaphragm and third eyeglass group for zoom and the 4th eyeglass group for focusing are that activity is arranged, existing volume is not increased to be had visible/infrared double light and is independently imaged and the various features such as image synthesis, sensor focusing, ultra-high magnifications, small size, large aperture this system in the case that keeping, and all aberrations can be satisfactorily corrected across entire zoom domain, can correspondence can carry out the solid-state imagers of 4K grades of image photographics of ultra high-definition.
Description
Technical field
It is specifically a kind of that there is outstanding low shine to imitate the utility model relates to a kind of technology in optical device field
Fruit has super large zoom ratio, the optical system of 4K image quality.
Background technology
The demand that current market shoots low-light (level) is also increasingly strong, and outstanding low effect of shining just necessarily requires mirror
Head has F-number as big as possible, shines shooting effect to promote the low of camera lens, usually there are two types of solutions：First, increasing
The aperture of camera lens, when ensureing to shoot in dark situation, camera lens can capture more imaging light, and picture illumination is brought with this
Promotion.But aperture size depends on the effective aperture of camera lens interior lens, and larger aperture, which inevitably results in camera lens, becomes " huge
Right big object ", all brings inconvenience to machining eyeglass and lens assembling.Second is that realize that low shine shoots using infrared light, this requires
Camera lens must all realize infrared confocal function in complete burnt section in design.Because external environment is complicated, it is difficult to ensure that having in environment
Sufficient infrared light, it usually needs mix additional infrared light supply generator and sensitive component to camera lens, bring in cost
Pressure.Larger performance loss is also had under infrared mode compared to visual light imaging, it is horizontal to be unable to reach same resolving power.
Utility model content
The utility model is directed to deficiencies of the prior art, proposes a kind of with the low optical system according to effect of optimization
System, in the case that keep existing volume it is not increased have visible/infrared double light independently be imaged and image synthesize, sensor
The various features such as focusing, ultra-high magnifications, small size, large aperture, and all aberrations can be satisfactorily corrected across entire zoom domain,
Can correspondence can carry out the solid-state imagers of 4K grades of image photographics of ultra high-definition.
The utility model is achieved through the following technical solutions：
The utility model includes successively from the object side to image side：The first eyeglass group with positive light coke, with negative power
The second eyeglass group, aperture diaphragm, the third eyeglass group with positive light coke, the 4th eyeglass group with negative power, have
5th eyeglass group of positive light coke and double photoreception of spectrum mechanisms, wherein：First eyeglass group and the 5th eyeglass group are fixed setting,
The second eyeglass group, aperture diaphragm and third eyeglass group for zoom and the 4th eyeglass group for focusing are that activity is arranged,
It is moved from object side to image side along optical axis by the second eyeglass group, while third eyeglass group moves along optical axis and realizes from wide-angle side
To the zoom of telescope end；It is moved along optical axis by the 4th eyeglass group and changes the void brought to correct zoom process and object distance
Coke moves the focusing for realizing picture by double photoreception of spectrum mechanisms along optical axis.
Double photoreception of spectrum mechanisms include：The Amici prism that is set on optical axis and it is located at Amici prism output end
Infrared sensor and visible light sensor, wherein：Amici prism will be seen that light is detached with infrared light, the light of one of wavelength
Line is transmitted through prism, and the light of another wavelength occurs reflection and leaves prism from other paths, by two sensor maps
As being merged by complicated algorithm, obtained picture effect can be compatible with infrared imaging picture brightness height and visible light at
As color information is abundant and the higher feature of resolving power.
The focusing, by the way that sensor focus adjusting mechanism is arranged in double photoreception of spectrum mechanisms, respectively in both direction
Visible light and the image quality of infrared light focus, wherein：By adjusting visible light sensor along visible in Visible optical trains
Optical axis direction is moved forward and backward, and realizes the performance focusing of Visible optical trains；By adjusting infrared sensor along infrared light in infrared light path
Axis direction is moved forward and backward, and realizes the performance focusing of infrared light path.
In the first eyeglass group comprising ultra-low dispersion glass with substantially tightened the infrared coloured light of camera lens telescope end with
Purple light allows camera lens to obtain sharper keen color experience；Particularly, the minus power lens in the first eyeglass group and positive light
Power lens are mutually glued, by the collocation of lens materials refractive index and Abbe number, ensure that the periphery of optical system as much as possible
Aberration transition.In order to make up the disadvantage of superelevation chromatic dispersion material lens powers deficiency, high-index material is especially used, has been improved
It is imaged the tortuosity ratio of light, ensure that the light tendency of focal length section is stablized.
First piece of lens index of the second eyeglass group is satisfied by Nd>1.85, eyeglass focal length is increased, from tradition
Part focal power has been shared in one group structure of structure；For bi-concave carry out non-spherical structure, each concave surface be corresponding in turn in
Optimize the curvature of field of the optical system from wide-angle side to telescope end, improves the image quality homogeneity in whole zoom；Meanwhile second eyeglass
Include some ultra-low dispersive glass in group, important optimization function is still played to the aberration of system.Based on second eyeglass group
Zoom group realizes increasing or reducing for multiplying power by way of being closed with third eyeglass flock mating.
The aperture diaphragm uses non-spherical structure, it is intended to which the image quality for improving complete burnt section central area works as progress
When focusing on the close up fragmentary at picture center, perception experience is leaped.
The third eyeglass group and aperture diaphragm synchronizing moving in zooming procedure so that even if camera lens is in larger coke
Away under, it still is able to keep larger aperture.Include ultra-low dispersion glass in eyeglass in third eyeglass group, with effect class before
As improve camera lens wide-angle side all band coloured light astigmat, it is ensured that camera lens possesses outstanding color rendition effect；Third mirror
Piece group has supplied the focal power that group is undertaken by multiple minus power lens structure glued with positive light coke eyeglass phase.
The refractive index of eyeglass in the 4th eyeglass group is satisfied by Nd>1.80, to have compressed the focus line of camera lens
Cheng Changdu.When focal length or object distance change, the position of the 4th eyeglass group is adjusted along optical axis direction, camera lens may be implemented in difference
Zoom in or out the focusing under multiplying power.
Cemented doublet specific refractivity in the 5th eyeglass group is more than 0.3, and the edge to adjust each multiplying power regards
Field angle of incident light, amplification angle is excessive to cause light spilling that can not be included by sensor.It include aspheric in 5th eyeglass group
Face eyeglass is horizontal with the image quality for further improving surrounding visual field.
Technique effect
Compared with prior art, the utility model is in optical system, using Amici prism to light path carry out it is infrared with can
The light splitting seen, two pieces of sensing chips of cooperation are respectively imaged infrared light and luminous ray, and wherein visual light imaging has abundant
Color information and higher resolving power, infrared imaging has higher picture illumination and lower noise signal, crawl two
The feature of width image is merged by complicated algorithm, and obtained picture is provided simultaneously with visible and infrared advantage：It is existing abundant
Color detail information and higher picture illumination, also have higher solution as horizontal and lower noise signal.In night, darkroom
Etc. having played outstanding performance in the low shooting according to environment.The utility model uses multiple-blade iris diaphragm, has evaded opal light
Circle not high defect of out of roundness when bore reduces so that the image quality of sagitta of arc direction and meridian direction reaches balance under each state
Uniform effect；The utility model uses the special focusing mode of sensor focusing.By sensor on optical axis before and after
Displacement focuses to infrared sensor with visible light sensor so that under each multiplying power, it is seen that all reached with infrared light path respectively
To most clearly focus state, the structure for solving monofocal group can not ensure infrared/visible double light path while clearly defect.
Compared to eyeglass group focus structure, the focusing stroke of sensor focusing is short very short, has very great help to shortening lens length.
The mobile variation for realizing focal length of collaboration that the utility model passes through Liang Ge zooms group：Camera lens uses two, three groups of linkages and becomes
Burnt, four clusterings coke structure.The stroke of three mobile groups has a degree of overlapping, is protected by special focusing Curve Design
Zheng Ge groups will not interfere with each other, while significantly have compressed the entire length of camera lens.The utility model uses mobile light
Coil structures, aperture assemblies camera lens is common mobile with three groups in zooming procedure, and telescopic circuit drives element of arranging in pairs or groups, with group
Mobile, circuit aperture control element can stretch matching length；Larger zoom ratio is finally realized in smaller volume.
Description of the drawings
Fig. 1 is 1 structural schematic diagram of embodiment；
Fig. 2 is each aberration diagram of the wide-angle side of 1 camera lens of embodiment relative to d lines；
Fig. 3 is each aberration diagram of the telescope end of 1 camera lens of embodiment relative to d lines；
Fig. 4 is 2 structural schematic diagram of embodiment；
Fig. 5 is each aberration diagram of the wide-angle side of 2 camera lens of embodiment relative to d lines；
Fig. 6 is each aberration diagram of the telescope end of 2 camera lens of embodiment relative to d lines；
Fig. 7 and Fig. 8 is respectively that figure is compared in the effect signal of the prior art and the utility model；
Fig. 9 and Figure 10 is respectively double photoreception of spectrum mechanism principle figures and structural schematic diagram；
In figure：The first to the 5th eyeglass groups of G1~G5, the first to the 19th eyeglasses of L1~L19, P Amici prisms, S aperture lights
Door screen, VIS-IMG visible light sensors, IR-IMG infrared light transducer[sensors, CG protective glass, ICF optical filters, sensor focus adjusting mechanism
1, guide shaft 2, movable frame 3, circular shaft hole 301, U-shaped hole 302, driving mechanism 4, holder 5.
Specific implementation mode
Embodiment 1
As shown in Figure 1, the present embodiment includes the first eyeglass group G1 with positive light coke successively from the object side to image side, has
Second eyeglass group G2 of negative power, the aperture diaphragm S of system, the third eyeglass group G3 with positive light coke, with negative light focus
Degree the 4th eyeglass group G4, the 5th eyeglass group G5 with positive light coke include Amici prism P, infrared sensor IR-IMG and
Double photoreception of spectrum mechanisms of visible light sensor VIS-IMG.
The focal length of the camera lens telescope end of the first eyeglass group G1 is (1.40,4.25) with the ratio of eyeglass group's focal length,
And first the focal length of first piece of eyeglass of nearly object side in eyeglass group G1 and the ratio of the focal length of camera lens telescope end be (- 0.48 ,-
0.23)。
The ratio of the focal length and eyeglass group's focal length of first piece of eyeglass of nearly object side is in the second eyeglass group G2
(1.05,2.15), and the focal length of camera lens wide-angle side and the spacing of the first eyeglass group G1 and the second eyeglass group G2 in wide-angle side
Ratio is (6.56,9.20), and the difference of the focal length of camera lens telescope end and the focal length of camera lens wide-angle side and eyeglass group from wide-angle side to
The ratio of the movable length of telescope end is (3.05,3.95).
The ratio of the focal length of the focal length and camera lens wide-angle side of first piece of eyeglass of nearly object side in the third eyeglass group G3
For
(4.39,6.95), and the ratio of the focal length of camera lens wide-angle side and eyeglass group's focal length is (0.03,0.21), and camera lens
The focal length of telescope end and the ratio of the spacing of the first eyeglass group G1 and third eyeglass group G3 in wide-angle side are (1.40,2.95).
The ratio of the difference and eyeglass group's focal length of the focal length of the telescope end of the 4th eyeglass group G4 and the focal length of wide-angle side
For
(- 11.58, -7.39), and the ratio of eyeglass group focal length and third eyeglass group's focal length is (- 0.72, -0.21).
The focal length of the wide-angle side of the 5th eyeglass group G5 is (1.07,1.30) with the ratio of eyeglass group's focal length, and in
The focal length of first piece of eyeglass of nearly object side is (- 0.794 ,+0.833) with the ratio of eyeglass group's focal length.
Specifically, in the present embodiment：
The first eyeglass group G1 includes successively from object side：The first eyeglass L1 with positive light coke, with negative light focus
Degree the second eyeglass L2, the third eyeglass L3 with positive light coke, the 4th eyeglass L4 with positive light coke, with positive light coke
The 5th eyeglass L5, wherein the first eyeglass L1 and the second eyeglass L2 are glued.
The second eyeglass group G2 includes successively from object side：It is the 6th aspherical mirror with negative power and two sides
Piece L6, the 7th eyeglass L7 with negative power, the 8th eyeglass L8 with positive light coke and with negative power and two sides it is equal
For the 9th aspherical eyeglass L9.
The third eyeglass group G3 includes successively from object side：It is the aspherical the tenth with positive light coke and rear surface
Eyeglass L10, the 11st eyeglass L11 with negative power, the 12nd eyeglass L12 with positive light coke, with negative power
The 13rd eyeglass L13 and be the 14th aspherical eyeglass L14 with positive light coke and rear surface, wherein the 11st eyeglass
L11 and the 12nd eyeglass L12, the 13rd eyeglass L13 and the 14th eyeglass L14 phases are glued.
The 4th eyeglass group G4 includes successively from object side：The 15th eyeglass L15 with negative power and with just
16th eyeglass L16 of focal power, wherein the 15th eyeglass L15 and the 16th eyeglass L16 phases are glued.
The 5th eyeglass group G5 matches the 17th eyeglass L17 with positive light coke from object side, with negative light in order
18th eyeglass L18 of focal power and be the 19th aspherical eyeglass L19 with positive light coke and two sides, wherein the 17th mirror
Piece L17 and the 18th eyeglass L18 phases are glued.
As shown in figure 9, being coated with the anti-reflection film of visible light and infrared light or equivalent increasing on the plane of incidence of the Amici prism P
Saturating structure, the optical filter ICF or the membrane system for being coated with different wave length light splitting that setting different wave length is divided on the light splitting surface of Amici prism,
It can be seen that light-emitting face is equipped with visible anti-reflection cutoff filter or is coated with visible anti-reflection infrared cut coating, Amici prism it is red
Outer exit facet is equipped with infrared anti-reflection vision filter or is coated with infrared anti-reflection visible cut-off film.
The Amici prism will be seen that light is detached with infrared light, and the light of one of wavelength is transmitted through rib
Mirror, the light of another wavelength occur reflection and leave prism from other paths, and two sensor images are passed through complicated algorithm
Merged, obtained picture effect can be compatible with infrared imaging picture brightness height and visual light imaging color information it is abundant with
The higher feature of resolving power.
As shown in figure 9, double photoreception of spectrum mechanisms are equipped with sensor focus adjusting mechanism 1 so that each sensor can
Realization focusing is moved with the optical axis along place light path.
As shown in Figure 10, it is the concrete structure of sensor focus adjusting mechanism 1 comprising：Guide shaft 2 and it is slideably positioned in guide shaft
Movable frame 3 with light hole (not shown) on 2 and the driving mechanism 4 being connected with movable frame 3, wherein：Light hole is just
To removable sensor IMG settings, light path light can be acquired by light hole.
The optimal quantity of the guide shaft 2 is two, and the both sides of corresponding movable frame 3 are respectively provided with the circle of sliding setting
Axis hole 301 and U-shaped hole 302.
The driving mechanism 4 includes：Driving motor and the holder 5 for being set to its output end, wherein：Holder 5 and movement
Frame 3 is connected, and the driving force of driving motor makes sensor focus adjusting mechanism make smoothly to move back and forth along light path light axis direction, realizes
The movement of sensor in the direction of the optical axis, mobile accuracy is higher, and performance is more accurate with focus controlling.
In the state of making the first eyeglass group and the 5th eyeglass group fixes, by making second mirror
Piece group moves along optical axis from object side to image side, while the third eyeglass group moves along optical axis, and lens set is on optical axis
Position and the position of the second eyeglass group correspond, and realize the zoom from wide-angle side to telescope end, described by making
The 4th eyeglass group moved along optical axis, correct zoom process and void that object distance variation is brought be burnt.Light is by described
After Amici prism, it is divided into infrared and visible two-way light, respectively enters corresponding infrared sensor IR-IMG and visible light sensing
Device VIS-IMG.It is moved along optical axis with visible light sensor by the infrared sensor, keeps infrared light path and visible light
The picture while focus on road.
It is preferably provided with protective glass and visible cut-off optical filter between the Amici prism and infrared sensor.
It is preferably provided with protective glass and cutoff filter between the Amici prism and visible light sensor.
The effect of the optical filter is to filter out the light and stray light of unnecessary wave band.
The output end of the infrared sensor and visible light sensor is further provided with the solid-state image pickups such as CCD and CMOS member
Part.
Hereinafter, showing the various numeric datas of the zoom lens about embodiment 1.
The telescope end of EFL=6.4 wide-angle sides~220
The telescope end of the wide-angle side of F numbers=1.41~4.35
Table 1 shows the structural parameters of 1 camera lens of embodiment；Table 2 shows the zoom parameters of 1 camera lens of embodiment；Table 3 is shown
The camera lens asphericity coefficient of embodiment 1.
Fig. 1 is each aberration diagram of the wide-angle side relative to d lines of 1 camera lens of embodiment；Fig. 2 is the telescope end of 1 camera lens of embodiment
Each aberration diagram relative to d lines.
1 embodiment of table, 1 lens construction parameter
2 embodiment of table, 1 lens zoom parameter
| Surface serial number | W | T |
| A | 0.88 | 59.77 |
| B | 64.31 | 1.69 |
| C | 1.15 | 2.17 |
| D | 10.24 | 12.93 |
| VIS E | 0.52 | 0.51 |
| IR E | 0.64 | 2.16 |
3 embodiment of table, 1 camera lens asphericity coefficient
| Surface serial number | K | A4 | A6 | A8 | A10 |
| S10 | 2.31 | 5.21E-05 | 6.75E-07 | 4.86E-09 | -6.87E-11 |
| S11 | 0.00 | -3.23E-05 | -4.59E-07 | -2.97E-09 | 9.10E-11 |
| S16 | -0.44 | -2.87E-05 | 7.65E-07 | -2.49E-09 | -4.31E-11 |
| S17 | 0.00 | -3.22E-06 | 5.61E-07 | 3.92E-09 | 5.63E-12 |
| S20 | 24.00 | 1.04E-05 | 3.26E-08 | -1.93E-10 | 2.59E-13 |
| S26 | -7.68 | 1.61E-05 | -5.61E-08 | 5.81E-10 | -4.21E-12 |
| S33 | -2.11 | -5.04E-05 | 8.39E-07 | -5.61E-08 | 1.09E-09 |
| S34 | 0.21 | 2.72E-05 | 1.89E-06 | -9.85E-08 | 2.04E-09 |
Embodiment 2
Difference lies in the present embodiment with embodiment 1：
The second eyeglass group G2 includes successively from object side：The 6th eyeglass L6 with negative power, with negative light focus
Degree and two sides be aspherical the 7th eyeglass L7, the 8th eyeglass L8 with positive light coke and with negative power and two sides it is equal
For the 9th aspherical eyeglass L9.
The third eyeglass group G3 includes successively from object side：It is the aspherical the tenth with positive light coke and two sides
Eyeglass L10, the 11st eyeglass L11 with negative power, the 12nd eyeglass L12 with positive light coke, with negative power
The 13rd eyeglass L13 and the 14th eyeglass L14 with positive light coke, wherein the 11st eyeglass L11 and the 12nd eyeglass
L12, the 13rd eyeglass L13 and the 14th eyeglass L14 phases are glued.
Hereinafter, showing the various numeric datas of the zoom lens about embodiment 2.
The telescope end of EFL=6.50 wide-angle sides~215
The telescope end of the wide-angle side of F numbers=1.48~4.93
Table 1 shows the structural parameters of 2 camera lens of embodiment；Table 2 shows the zoom parameters of 2 camera lens of embodiment；Table 3 is shown
The camera lens asphericity coefficient of embodiment 2.
Fig. 3 is each aberration diagram of the wide-angle side relative to d lines of 2 camera lens of embodiment；Fig. 4 is the telescope end of 2 camera lens of embodiment
Each aberration diagram relative to d lines.
1 embodiment of table, 2 lens construction parameter
2 embodiment of table, 2 lens zoom parameter
| Surface serial number | W | T |
| A | 0.65 | 53.02 |
| B | 66.21 | 2.00 |
| C | 1.10 | 10.41 |
| D | 10.78 | 13.30 |
| VIS E | 0.41 | -0.39 |
| IR E | 0.57 | 0.95 |
3 embodiment of table, 2 camera lens asphericity coefficient
| Surface serial number | K | A4 | A6 | A8 | A10 |
| S12 | 0.06 | 3.39E-05 | -8.11E-07 | 1.06E-08 | -6.17E-11 |
| S13 | -1.11 | 1.42E-05 | -7.24E-07 | 9.58E-10 | -5.09E-11 |
| S19 | -0.01 | -7.80E-06 | 1.18E-08 | -4.24E-11 | 5.15E-14 |
| S20 | 3.59 | 1.61E-05 | 1.13E-08 | 6.32E-11 | 7.13E-14 |
| S33 | 1.26 | 2.99E-05 | -1.15E-07 | -1.41E-08 | 6.27E-10 |
| S34 | -0.70 | 3.25E-05 | -1.99E-07 | -2.78E-08 | 9.31E-10 |
As Fig. 7 and Fig. 8 compare as it can be seen that the utility model passes through infrared and visible light splitting optical path, sensor focusing strategy
And dual image fusion, realize the low significantly promotion according to effect and resolving power level.
Above-mentioned specific implementation can by those skilled in the art under the premise of without departing substantially from the utility model principle and objective with
Different modes carries out it local directed complete set, and the scope of protection of the utility model is subject to claims and not by above-mentioned specific
Implementation is limited, and each implementation within its scope is by the constraint of the utility model.
Claims (10)
1. a kind of having the low optical system according to effect of optimization, which is characterized in that include successively from the object side to image side：With positive light
First eyeglass group of focal power, the second eyeglass group with negative power, aperture diaphragm, the third eyeglass group with positive light coke,
The 4th eyeglass group with negative power, the 5th eyeglass group with positive light coke and double photoreception of spectrum mechanisms, wherein：First
Eyeglass group and the 5th eyeglass group are fixed setting, the second eyeglass group, aperture diaphragm and the third eyeglass group for zoom and use
It is that activity is arranged in the 4th eyeglass group of focusing.
2. system according to claim 1, characterized in that in the first eyeglass group comprising ultra-low dispersion glass and
The cemented doublet of minus power lens and positive light coke eyeglass composition；First piece of lens index of the second eyeglass group is full
Sufficient Nd>1.85, include ultra-low dispersion glass in the second eyeglass group；The aperture diaphragm uses non-spherical structure；Third eyeglass
Cemented doublet comprising ultra-low dispersion glass and multiple minus power lens and positive light coke eyeglass composition in eyeglass in group；
The refractive index of eyeglass in the 4th eyeglass group is satisfied by Nd>1.80；Cemented doublet folding in the 5th eyeglass group
The difference for penetrating rate is more than 0.3, and uses aspherical lens in the 5th eyeglass group.
3. system according to claim 1 or 2, characterized in that the focal length of the camera lens telescope end of the first eyeglass group
Be (1.40,4.25) with the ratio of eyeglass group's focal length, and in the first eyeglass group first piece of eyeglass of nearly object side focal length and camera lens
The ratio of the focal length of telescope end is (- 0.48, -0.23).
4. system according to claim 1 or 2, characterized in that first piece of mirror of nearly object side in the second eyeglass group
The focal length of piece and the ratio of eyeglass group's focal length are (1.05,2.15), and the focal length of camera lens wide-angle side and the first mirror in wide-angle side
The ratio of the spacing of piece group and the second eyeglass group is (6.56,9.20), and the coke of the focal length of camera lens telescope end and camera lens wide-angle side
Ratio away from its difference and movable length of the eyeglass group from wide-angle side to telescope end is (3.05,3.95).
5. system according to claim 1 or 2, characterized in that first piece of mirror of nearly object side in the third eyeglass group
The ratio of the focal length of piece and the focal length of camera lens wide-angle side is (4.39,6.95), and the focal length of camera lens wide-angle side and eyeglass group's focal length
Ratio be (0.03,0.21), and the focal length of camera lens telescope end and in wide-angle side between the first eyeglass group and third eyeglass group
Away from ratio be (1.40,2.95).
6. system according to claim 1 or 2, characterized in that the focal length of the telescope end of the 4th eyeglass group with it is wide
The difference of the focal length at angle end is (- 11.58, -7.39) with the ratio of eyeglass group's focal length, and eyeglass group focal length and third eyeglass group are burnt
Away from ratio be (- 0.72, -0.21).
7. system according to claim 1 or 2, characterized in that the focal length and mirror of the wide-angle side of the 5th eyeglass group
The ratio of piece group's focal length is (1.07,1.30), and in the ratio of focal length and eyeglass group's focal length of first piece of eyeglass of nearly object side be
(-0.794,+0.833)。
8. system according to claim 1, characterized in that double photoreception of spectrum mechanisms include：It is set on optical axis
Amici prism and infrared sensor and visible light sensor positioned at Amici prism output end.
9. system according to claim 8, characterized in that be coated on the plane of incidence of the Amici prism visible light with it is red
The anti-reflection film of outer light or equivalent anti-reflection structure, the optical filter or be coated with not that setting different wave length is divided on the light splitting surface of Amici prism
The membrane system of co-wavelength light splitting, it is seen that light-emitting face is equipped with visible anti-reflection cutoff filter or is coated with visible anti-reflection infrared section
The infrared exit facet of only film, Amici prism is equipped with infrared anti-reflection vision filter or is coated with infrared anti-reflection visible cut-off film.
10. according to any system in claim 1,2,8 or 9, characterized in that the first eyeglass group from object side according to
It is secondary to include：The first eyeglass with positive light coke, the second eyeglass with negative power, the third eyeglass with positive light coke,
The 4th eyeglass with positive light coke, the 5th eyeglass with positive light coke, wherein the first eyeglass and the second eyeglass are glued；
The second eyeglass group is any in following two structures：
A. include successively from object side：It is aspherical the 6th eyeglass, with negative power with negative power and two sides
Seven eyeglasses, the 8th eyeglass with positive light coke and be the 9th aspherical eyeglass with negative power and two sides；
B. include successively from object side：The 6th eyeglass with negative power with negative power and two sides is aspherical
Seven eyeglasses, the 8th eyeglass with positive light coke and be the 9th aspherical eyeglass with negative power and two sides；
The third eyeglass group is any in following two structures：
I. include successively from object side：It is the tenth aspherical eyeglass, with negative power with positive light coke and rear surface
11st eyeglass, the 12nd eyeglass with positive light coke, the 13rd eyeglass with negative power and with positive light coke and
Rear surface is the 14th aspherical eyeglass, wherein the 11st eyeglass and the 12nd eyeglass, the 13rd eyeglass and the 14th eyeglass
It is mutually glued；
Ii. include successively from object side：It is aspherical the tenth eyeglass, with negative power with positive light coke and two sides
11st eyeglass, the 12nd eyeglass with positive light coke, the 13rd eyeglass with negative power and with positive light coke
14th eyeglass, wherein the 11st eyeglass is mutually glued with the 12nd eyeglass, the 13rd eyeglass and the 14th eyeglass；
The 4th eyeglass group includes successively from object side：The 15th eyeglass with negative power and with positive light coke
16 eyeglasses, wherein the 15th eyeglass is mutually glued with the 16th eyeglass；
The 5th eyeglass group matches the 17th eyeglass with positive light coke, the with negative power the tenth in order from object side
Eight eyeglasses and be the 19th aspherical eyeglass with positive light coke and two sides, wherein the 17th eyeglass and the 18th eyeglass phase
It is glued.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111638588A (en) * | 2019-03-01 | 2020-09-08 | 杭州海康威视数字技术股份有限公司 | Optical zoom system, lens and camera |
| CN112099211A (en) * | 2020-09-27 | 2020-12-18 | 杭州海康威视数字技术股份有限公司 | Zoom optical system and image capturing apparatus |
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2018
- 2018-02-07 CN CN201820213432.4U patent/CN207937679U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111638588A (en) * | 2019-03-01 | 2020-09-08 | 杭州海康威视数字技术股份有限公司 | Optical zoom system, lens and camera |
| CN112099211A (en) * | 2020-09-27 | 2020-12-18 | 杭州海康威视数字技术股份有限公司 | Zoom optical system and image capturing apparatus |
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Address after: 314000 No.188, Taojing Road, Gaozhao street, Xiuzhou District, Jiaxing City, Zhejiang Province Patentee after: Jiaxing Zhongrun Optical Technology Co.,Ltd. Address before: 314000 Room 2F201-6, Building 6, Jiaxing Photovoltaic Science Park, 1288 Kanghe Road, Xiuzhou District, Jiaxing City, Zhejiang Province Patentee before: JIAXING ZHONGRUN OPTICAL SCIENCE AND TECHNOLOGY Co.,Ltd. |