CN109116529B - A kind of high-resolution microminiature visible light varifocal optical system - Google Patents
A kind of high-resolution microminiature visible light varifocal optical system Download PDFInfo
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- CN109116529B CN109116529B CN201810961572.4A CN201810961572A CN109116529B CN 109116529 B CN109116529 B CN 109116529B CN 201810961572 A CN201810961572 A CN 201810961572A CN 109116529 B CN109116529 B CN 109116529B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B15/00—Optical objectives with means for varying the magnification
- G02B15/14—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
- G02B15/15—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 compensation by means of only one movement or by means of only linearly related movements, e.g. optical compensation
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- G—PHYSICS
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- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
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Abstract
In order to improve the performance indicator of zoom system, pancreatic system and realize the microminaturization design of system, this invention describes a kind of high-resolution microminiature visible light varifocal optical systems, including sensitive chip, the static fixed group II of opposite sensitive chip is successively provided with optical axis outward by sensitive chip in the side of the sensitive chip, it can be with respect to the compensation group that sensitive chip moves forward and backward, the opposite static diaphragm of sensitive chip, can the zoom group that is moved forward and backward of opposite sensitive chip, the static fixed group I of opposite sensitive chip；In the varifocal optical system, the whole focal length of the fixed group I, compensation group and fixed group II is positive, and the whole focal length of the zoom group is negative.The invention belongs to optical image technology fields, have the characteristics that compact-sized, small in size, light-weight, image quality is excellent, to realize that the Miniaturization Design of O-E Payload for UAV provides technical foundation, it is widely used in the fields such as police service aviation, city or Patrol on Waters, power-line patrolling, tracking and monitoring.
Description
Technical field
The invention belongs to optical image technology fields, in particular to a kind of micro- for monitoring the high-resolution scouted
Small-sized visible light varifocal optical system.
Background technique
Varifocal optical system is that a kind of focal length can be with consecutive variations and image planes keep stablizing, and image quality is protected in zooming procedure
Hold good optical system.Variable focal length optical system may be implemented to adjust the distance the continuous probe of target, be widely used to its people
Many fields of economy and national defense industry.Common zoom lens in the market, generally existing volume is relatively large, and resolution ratio is low,
The lesser problem of visual field, usually solves existing subproblem as cost using the resolution ratio of sacrificial system.
Summary of the invention
The purpose of the invention is to improve the performance indicator of zoom system, pancreatic system, and realize the microminaturization design of system, this
Invention provides a kind of high-resolution microminiature visible light varifocal optical system.
To achieve the above object, the technical solution adopted by the present invention is as follows:
A kind of high-resolution microminiature visible light varifocal optical system, including sensitive chip, the one of the sensitive chip
Side is successively provided with the static fixed group II of opposite sensitive chip with optical axis outward by sensitive chip, can be before opposite sensitive chip
Compensation group, the static diaphragm of sensitive chip, the zoom group that the opposite sensitive chip of energy is moved forward and backward relatively moved afterwards is relatively photosensitive
The static fixed group I of chip；In the varifocal optical system, the whole focal length of the fixed group I is positive, the zoom group
Whole focal length be negative, the whole focal length of the compensation group is positive, and the whole focal length of the fixed group II is positive.
Further, the fixed group I includes the first lens, the second lens set gradually from the object side to image side, described
Zoom group includes the third lens set gradually from the object side to image side, the 4th lens, the 5th lens, and the compensation group includes from object
The 6th lens, the 7th lens, the 8th lens that side is set gradually to image side, the fixed group II include from the object side to image side successively
The 9th lens being arranged and the tenth lens.
Further, first lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens,
Seven lens, the 8th lens, the 9th lens, the tenth lens are spheric glass.
Further, the radius of curvature of first lens outer surface is 8.49mm, and the radius of curvature of inner surface is
6.109mm with a thickness of 0.8mm；The radius of curvature of second lens outer surface is 6.109mm, and the radius of curvature of inner surface is
INFINITY, with a thickness of 2mm；The radius of curvature of the third lens outer surface is -17.4mm, and the radius of curvature of inner surface is 9.1mm,
With a thickness of 0.6mm；The radius of curvature of 4th lens outer surface is -43.95mm, and the radius of curvature of inner surface is 4mm, with a thickness of
0.6mm；The radius of curvature of 5th lens outer surface is 4mm, and the radius of curvature of inner surface is 12.53mm, with a thickness of 0.7mm；The
The radius of curvature of six lens outer surfaces is 11.38mm, and the radius of curvature of inner surface is -10.6mm, with a thickness of 0.8mm；7th thoroughly
The radius of curvature of mirror outer surface is 8mm, and the radius of curvature of inner surface is -5.35mm, with a thickness of 0.8mm；8th lens outer surface
Radius of curvature be -5.35mm, the radius of curvature of inner surface is -18.52mm, with a thickness of 0.6mm；The song of 9th lens outer surface
Rate radius is 2.572mm, and the radius of curvature of inner surface is 1.521mm, with a thickness of 1.7mm；The curvature of tenth lens outer surface half
Diameter is 4.528mm, and the radius of curvature of inner surface is 73.86mm, with a thickness of 0.6mm.
Further, the fixed group I is 11.585mm at a distance from the diaphragm；The diaphragm and the fixed group II
Distance be 6.603mm；The fixed group II and sensitive chip distance 0.967mm.
Further, it is bonded between first lens and the second lens using optical glue；The third lens and institute
The airspace for stating the 4th lens is 0.37mm；It is bonded between 4th lens and the 5th lens using optical glue；It is described
The airspace 0.05mm of 6th lens and the 7th lens；Optics is utilized between 7th lens and the 8th lens
Glue bonding；The airspace of 9th lens and the tenth lens is 2.54mm.
Further, first lens are made of H-ZLAF53B material；Second lens use H-FK61 material
It is made；The third lens are made of H-LAK52 material；4th lens are made of H-LAK53A material；Described
Five lens are made of H-ZF52A material；6th lens are made of H-FK61 material；7th lens use H-
ZPK2A material is made；8th lens are made of H-ZF52A material；9th lens use H-LAF50B material system
At；Tenth lens are made of H-LAK52 material.
Further, the quality of the first lens is 0.24g, and the quality of the second lens is 0.25g, and the quality of the third lens is
0.05g, the quality of the 4th lens are 0.06g, and the quality of the 5th lens is 0.03g, and the quality of the 6th lens is 0.03g, the 7th
The quality of lens is 0.02g, and the quality of the 8th lens is 0.03g, and the quality of the 9th lens is 0.05g, the quality of the tenth lens
For 0.01g, the total weight of ten lens is 0.77g.
Further, a kind of service band of high-resolution microminiature visible light varifocal optical system be 0.48 μm~
0.65 μm, focal length is 2.68mm~17.5mm continuous zoom, and 6.5 times of zoom ratio, visual field is 4.7 °~31 °, the image space F number of object lens
It is 2.15~3, for the transmission function of optical system in 250lp/mm, 0 visual field of different focal length position is all larger than 0.43, and full filed is equal
Greater than 0.26, systematical distortion is respectively less than 4.31%, and Pixel size is 2 μm.
Further, a kind of overall length of high-resolution microminiature visible light varifocal optical system is 26.85mm, maximum
Bore is
The beneficial effect of the present invention compared with the existing technology is:
A kind of high-resolution microminiature visible light varifocal optical system, is not reducing systemic resolution documented by the present invention
While, it is greatly reduced system dimension, alleviates the weight of system, there is compact-sized, small in size, light-weight, resolution
The advantages that rate is high, and image quality is excellent, is the microminiature continuous zooming optical system of a miniaturization, is that carrying unmanned plane is small
The key technology means of type gondola, suitable for the low profile photovoltaic reconnaissance equipment to space, load requirement harshness, digital vedio recording,
Road traffic, unmanned plane, which such as scout at the fields, has extensive and essential practical application, it can be achieved that the search of target, detecing
It looks into, be accurately positioned.
Detailed description of the invention
Fig. 1 zoom schematic diagram；
Fig. 2 zoom interval calculation schematic diagram；
Fig. 3 is a kind of high-resolution microminiature visible light varifocal optical system structure chart；
Fig. 4 is the lens position figure of structure one；
Fig. 5 is the lens position figure of structure two；
Fig. 6 is the lens position figure of structure three；
Fig. 7 is the lens position figure of structure four；
Fig. 8 is the lens position figure of structure five；
Fig. 9 is the lens position figure of structure six；
Figure 10 is the cam curve figure of zoom group；
Figure 11 is the cam curve figure of compensation group；
Figure 12 is the transfer curve figure of structure one；
Figure 13 is the distortion curve of structure one；
Figure 14 is the transfer curve figure of structure two；
Figure 15 is the distortion curve of structure two；
Figure 16 is the transfer curve figure of structure three；
Figure 17 is the distortion curve of structure three；
Figure 18 is the transfer curve figure of structure four；
Figure 19 is the distortion curve of structure four；
Figure 20 is the transfer curve figure of structure five；
Figure 21 is the distortion curve of structure five；
Figure 22 is the transfer curve figure of structure six；
Figure 23 is the distortion curve of structure six；
In figure: 1, fixed group I, 2, zoom group, 3, compensation group, 4, fixed group II, 5, diaphragm, 6, sensitive chip, 11, first
Lens, the 12, second lens, 21, the third lens, the 22, the 4th lens, the 23, the 5th lens, the 31, the 6th lens, the 32, the 7th lens,
33, the 8th lens, the 41, the 9th lens, the 42, the tenth lens.
Specific embodiment
The present invention will be described in detail with reference to the accompanying drawing.
Embodiment 1
Present embodiment describes a kind of high-resolution microminiature visible light varifocal optical system, including sensitive chip 6,
The side of the sensitive chip 6 is successively provided with the opposite static fixation group of sensitive chip 6 with optical axis outward by sensitive chip 6
II 4, can opposite sensitive chip 6 move forward and backward compensation group 3, the opposite static diaphragm 5 of sensitive chip 6, can opposite sensitive chip 6
The zoom group 2 of back-and-forth motion, the static fixed group I 1 of opposite sensitive chip 6；The whole focal length of the fixed group I 1 is positive, described
The whole focal length of zoom group 2 is negative, and the whole focal length of the compensation group 3 is positive, and the whole focal length of the fixed group II 4 is positive.
Further, the fixed group I 1 includes the first lens 11, the second lens set gradually from the object side to image side
12, the zoom group 2 include set gradually from the object side to image side the third lens 21, the 4th lens 22, the 5th lens 23, it is described
Compensation group 3 includes the 6th lens 31, the 7th lens 32, the 8th lens 33 that set gradually from the object side to image side, and described fixed group
II 4 include the 9th lens 41 and the tenth lens 42 set gradually from the object side to image side.
Further, first lens 11, the second lens 12, the third lens 21, the 4th lens 22, the 5th lens 23,
6th lens 31, the 7th lens 32, the 8th lens 33, the 9th lens 41, the tenth lens 42 are spheric glass.
Further, the fixed group I 1 is 11.585mm at a distance from the diaphragm 5；The diaphragm 5 and the fixation
The distance of group II 4 is 6.603mm；The fixed group II 4 and 6 distance 0.967mm of sensitive chip.
Further, it is bonded between first lens 11 and the second lens 12 using optical glue；The third lens
21 and the airspaces of the 4th lens 22 are 0.37mm；Optical cement is utilized between 4th lens 22 and the 5th lens 23
Water bonding；The airspace 0.05mm of 6th lens 31 and the 7th lens 32；7th lens 32 and described the
It is bonded between eight lens 33 using optical glue；The airspace of 9th lens 41 and the tenth lens 42 is
2.54mm。
Further, the quality of the first lens 11 is 0.24g, and the quality of the second lens 12 is 0.25g, the third lens 21
Quality is 0.05g, and the quality of the 4th lens 22 is 0.06g, and the quality of the 5th lens 23 is 0.03g, the quality of the 6th lens 31
For 0.03g, the quality of the 7th lens 32 is 0.02g, and the quality of the 8th lens 33 is 0.03g, and the quality of the 9th lens 41 is
0.05g, the quality of the tenth lens 42 are 0.01g, and the total weight of ten lens is 0.77g.
Further, a kind of overall length of high-resolution microminiature visible light varifocal optical system is 26.85mm, maximum
Bore is
Further, the parameter of each lens is as shown in table 1:
The parameter of each lens of table 1
Further, a kind of service band of high-resolution microminiature visible light varifocal optical system be 0.48 μm~
0.65 μm, focal length is 2.68mm~17.5mm continuous zoom, and 6.5 times of zoom ratio, visual field is 4.7 °~31 °, the image space F number of object lens
It is 2.15~3, for the transmission function of optical system in 250lp/mm, 0 visual field of different focal length position is all larger than 0.43, and full filed is equal
Greater than 0.26, systematical distortion is respectively less than 4.31%, and Pixel size is 2 μm.
According to design requirement, select pal mode (720 × 576) cmos sensor, target surface having a size of 1.44mm ×
1.152mm diagonal line 1.844mm.It is corresponding in each focal position that system can be calculated by formula 2w=2arctan (h/2f)
Visual field value, wherein h be CMOS target surface long side length 1.44mm, select six focal positions to be designed calculating, each focal length
The corresponding visual field in position is as shown in table 2.
Focal length and visual field value of 2 system of table in six Zoom structures
| Parameter | Structure one | Structure two | Structure three | Structure four | Structure five | Structure six |
| Focal length f' | 2.68mm | 6.23mm | 8.75mm | 12.5mm | 15mm | 17.5mm |
| Visual field 2w | 31° | 15.5° | 11.1° | 7.8° | 6.5° | 4.3° |
Six focal positions are selected to carry out analysis optimization calculating using ZEMAX optical design software, system is by four groups ten
Lens composition, system overall length are 26.85mm, and maximum caliber isTotal weight 0.77g, Fig. 4-Fig. 9 are system construction drawing,
The lens position of six Zoom structures of system is provided respectively.Table 3 be when zoom group 2, compensation group 3 are mobile with front and back constituent element away from
From wherein d12It is zoom group 2 at a distance from fixed group I 1, d23For zoom group 2 and 3 distance of compensation group, d34For compensation group 3 and admittedly
Surely the distance of group II 4, f' and l are respectively focal length value and rear cut-off distance value at this time.
3 focal length of table and spacing parameter
| Parameter | Structure 1 | Structure 2 | Structure 3 | Structure 4 | Structure 5 | Structure 6 |
| d12 | 0.37mm | 5.19mm | 6.60mm | 7.84mm | 8.40mm | 8.69mm |
| d23 | 12.81mm | 6.70mm | 4.60mm | 2.51mm | 1.48mm | 0.57mm |
| d34 | 0.39mm | 1.69mm | 2.37mm | 3.23mm | 3.70mm | 4.31mm |
| f' | 2.68mm | 6.23mm | 8.75mm | 12.5mm | 15mm | 17.5mm |
| l | 0.967mm | 0.967mm | 0.967mm | 0.967mm | 0.967mm | 0.967mm |
The cam curve of the zoom group 2 of the varifocal optical system is as shown in Figure 10, the cam curve of compensation group 3 such as Figure 11
Shown, abscissa represents the focal length variations of zoom system, pancreatic system in figure, and ordinate indicates zoom group 2, the fortune of compensation group 3 under different focal length
Dynamic rail mark.By the curve of Figure 10 and Figure 11 it is found that when the focal length value of zoom system, pancreatic system changes to 17.5mm by 2.68mm, zoom group
2 movement total kilometres are 8.32mm, and the movement total kilometres of compensation group 3 are 3.92mm, two curve movement smooth trajectories without inflection point,
It is easy to the processing dress school of system.
Continuous zooming optical system six focal positions optical transfer function and distortion curve such as attached drawing 12 to figure
Shown in 23.When spatial frequency is 250lp/mm, 0 visual field transmission function difference 0.52,0.52,0.49,0.48,0.47,0.43,
The outer full filed sagitta of arc transmission function of axis is respectively 0.4,0.51,0.47,0.47,0.43,0.41, and the outer full filed meridian of axis transmits letter
Number is respectively 0.26,0.38,0.32,0.36,0.33,0.28, and distortion value is respectively 4.31%, 0.51%, 1.68%,
2.45%, 2.68%, 1.95%；As the above analysis: the image quality of system is excellent, fully meets technical requirement.
A kind of high-resolution microminiature visible light zoom system, pancreatic system designed by the present invention is continuous zooming optical system, and focal length is
2.68mm~17.5mm continuous zoom, 6.5 times of zoom ratio, visual field is 4.7 °~31 ° (level), F number: 2.15~3, it is big visual field
Small F number continuous zooming optical system has high-resolution, object lens of large relative aperture, the strong feature of light collecting light ability.
A kind of high-resolution microminiature visible light zoom system, pancreatic system uses Miniaturization Design, and overall length is less than 26.85mm, total weight
0.77g, eyeglass maximum gaugeHave the characteristics that compact-sized, small in size, light-weight.
In 250lp/mm, different focal length position 0 is regarded for a kind of transmission function of high-resolution microminiature visible light zoom system, pancreatic system
Field is all larger than 0.43, and full filed is all larger than 0.26, and systematical distortion is respectively less than 4.31%, and image quality is excellent, and performance characteristics are prominent.
A kind of single pixel under high-resolution microminiature visible light zoom system, pancreatic system focal length state is 0.114mrad, i.e. angle point
Resolution is 23 ", detection range is remote, detection accuracy is high.
High-resolution microminiature visible light varifocal optical system can be connected with high resolution CMOS camera, be turned by photoelectricity
It changes, generates the electric signal output of respective strengths, generate visible images, for subsequent image processing, to realize to remote mesh
Mark big visual field search, small field of view identification, high-resolution, low distortion scouting and Image Acquisition.
Design principle of the invention:
Although optical compensation type zoom lens structure is simple, since each lens group has to move to certain special positions
Set, can just obtain stablizing clearly image planes, focal length cannot continuously change, but several discrete values, thus in use by
Many limitations are arrived；The focal length of mechanical compensation type zoom lens can continuously change, therefore be rapidly developed and extensively
General application, the present invention use two constituent element mechanical compensation method design ideal varifocal optical systems.
A kind of high-resolution microminiature visible light varifocal optical system performance indicator requirement is as follows:
Service band: 0.48 μm~0.65 μm；
Focal length: 2.68mm~17.5mm continuous zoom, 6.5 times of zoom ratio；
Visual field: 4.7 °~31 ° (level)；
F number: 2.15~3；
Full filed distortion≤5%；
Modulation transfer function (design value)；
Each visual field transmission function requires as follows:
0 visual field >=0.3 (250lp/mm)；
Full filed >=0.2 (250lp/mm)；
Video formats: pal mode (720 × 576)；
Pixel size: 2 μm；
Camera lens outer dimension: it is no more than
Camera lens weight :≤0.8g.
Specific design procedure of the invention is as follows:
The present invention realizes the continuous vari-focus of optical system using two constituent element mechanical compensation methods, i.e., system is by fixing group I, zoom
Totally four parts form for group, compensation group, fixed group II, and zoom schematic diagram is as shown in Figure 1.It needs to meet " image friendship in zooming procedure
Change principle ", when changing focal length continuously in a certain range, image planes are kept essentially stationary.
As shown in Figure 1, in zooming procedure, zoom group and compensation group do relative motion, and change system by the way that zoom group is mobile
System focal length, the drift of compensation group motion compensation image planes and image quality variation.Need strict control zoom group, compensation group burnt in the design process
Away from, enlargement ratio, zoom group and compensation group is avoided to bump against.It is assumed that the zoom ratio of system is M, fixed group I, zoom group, compensation group
Focal length be respectively f1'、f2'、f3', the relative spacing of fixed group I and zoom group is ds12, zoom group and compensation group it is opposite between
It is divided into ds23, the moving distance of zoom group and compensation group is respectively l2、l3, then initial bit can determine by formula (1), formula (2)
Set the enlargement ratio β of zoom group, compensation group2、β3。
When zoom group amount of movement is x, the amount of movement of compensation group is y.Then while meeting zoom ratio M, zoom group with
Interval between compensation group need to meet formula (3) i.e. d's23> 0, it is as shown in Figure 2 that zoom calculates schematic diagram.
d′s23=ds23- x+y > 0 (3)
A kind of high-resolution microminiature visible light continuous zooming optical system provided by the invention, using mechanical compensation type knot
Configuration formula realizes that optical system focal length continuously changes, and is made of fixed group I, zoom group, compensation group, fixed group II, zoom group is mended
Repay 6.5 times of consecutive variations that two constituent elements of group realize optical system focal length by relative motion.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of high-resolution microminiature visible light varifocal optical system, it is characterised in that: including sensitive chip (6), described
The side of sensitive chip (6) is successively provided with opposite sensitive chip (6) static fixation with optical axis outward by sensitive chip (6)
II (4) are organized, it can be with respect to the compensation group (3) that sensitive chip (6) move forward and backward, opposite sensitive chip (6) static diaphragm (5), energy
The zoom group (2) that opposite sensitive chip (6) are moved forward and backward, opposite sensitive chip (6) static I (1) of fixed group；Described fixed group
The whole focal length of I (1) is positive, and the whole focal length of the zoom group (2) is negative, and the whole focal length of the compensation group (3) is positive, institute
The whole focal length for stating II (4) of fixed group is positive；
I (1) of the fixed group includes the first lens (11) set gradually from the object side to image side, the second lens (12), the change
Times group (2) includes the third lens (21) set gradually from the object side to image side, the 4th lens (22), the 5th lens (23), described
Compensation group (3) includes the 6th lens (31), the 7th lens (32), the 8th lens (33) set gradually from the object side to image side, institute
Stating II (4) of fixed group includes the 9th lens (41) and the tenth lens (42) set gradually from the object side to image side.
2. a kind of high-resolution microminiature visible light varifocal optical system according to claim 1, it is characterised in that: described
First lens (11), the second lens (12), the third lens (21), the 4th lens (22), the 5th lens (23), the 6th lens
(31), the 7th lens (32), the 8th lens (33), the 9th lens (41), the tenth lens (42) are spheric glass.
3. a kind of high-resolution microminiature visible light varifocal optical system according to claim 1, it is characterised in that: described
The radius of curvature of the first lens (11) outer surface is 8.49mm, and the radius of curvature of inner surface is 6.109mm, with a thickness of 0.8mm；Institute
The radius of curvature for stating the second lens (12) outer surface is 6.109mm, and the radius of curvature of inner surface is INFINITY, with a thickness of 2mm；
The radius of curvature of the third lens (21) outer surface is -17.4mm, and the radius of curvature of inner surface is 9.1mm, with a thickness of
0.6mm；The radius of curvature of 4th lens (22) outer surface is -43.95mm, and the radius of curvature of inner surface is 4mm, with a thickness of
0.6mm；The radius of curvature of 5th lens (23) outer surface is 4mm, and the radius of curvature of inner surface is 12.53mm, with a thickness of
0.7mm；The radius of curvature of 6th lens (31) outer surface is 11.38mm, and the radius of curvature of inner surface is -10.6mm, thick
Degree is 0.8mm；The radius of curvature of 7th lens (32) outer surface is 8mm, and the radius of curvature of inner surface is -5.35mm, thick
Degree is 0.8mm；The radius of curvature of 8th lens (33) outer surface is -5.35mm, the radius of curvature of inner surface is -
18.52mm with a thickness of 0.6mm；The radius of curvature of 9th lens (41) outer surface is 2.572mm, the curvature half of inner surface
Diameter is 1.521mm, with a thickness of 1.7mm；The radius of curvature of tenth lens (42) outer surface is 4.528mm, the song of inner surface
Rate radius is 73.86mm, with a thickness of 0.6mm.
4. a kind of high-resolution microminiature visible light varifocal optical system according to claim 1, it is characterised in that: described
I (1) of fixed group is 11.585mm at a distance from the diaphragm (5)；The diaphragm (5) is organized at a distance from II (4) with the fixation
6.603mm；II (4) of the fixed group and the sensitive chip (6) distance 0.967mm.
5. a kind of high-resolution microminiature visible light varifocal optical system according to claim 1, it is characterised in that: described
It is bonded between first lens (11) and the second lens (12) using optical glue；The third lens (21) and the 4th lens
(22) airspace is 0.37mm；It is bonded between 4th lens (22) and the 5th lens (23) using optical glue；Institute
State the airspace 0.05mm of the 6th lens (31) and the 7th lens (32)；7th lens (32) are saturating with the described 8th
It is bonded between mirror (33) using optical glue；The airspace of 9th lens (41) and the tenth lens (42) is
2.54mm。
6. a kind of high-resolution microminiature visible light varifocal optical system according to claim 1, it is characterised in that: described
First lens (11) are made of H-ZLAF53B material；Second lens (12) are made of H-FK61 material；The third
Lens (21) are made of H-LAK52 material；4th lens (22) are made of H-LAK53A material；5th lens
(23) it is made of H-ZF52A material；6th lens (31) are made of H-FK61 material；7th lens (32) are adopted
It is made of H-ZPK2A material；8th lens (33) are made of H-ZF52A material；9th lens (41) use H-
LAF50B material is made；Tenth lens (42) are made of H-LAK52 material.
7. a kind of high-resolution microminiature visible light varifocal optical system according to claim 1, it is characterised in that: first
The quality of lens (11) is 0.24g, and the quality of the second lens (12) is 0.25g, and the quality of the third lens (21) is 0.05g, the
The quality of four lens (22) is 0.06g, and the quality of the 5th lens (23) is 0.03g, and the quality of the 6th lens (31) is 0.03g,
The quality of 7th lens (32) is 0.02g, and the quality of the 8th lens (33) is 0.03g, and the quality of the 9th lens (41) is
0.05g, the quality of the tenth lens (42) are 0.01g, and the total weight of ten lens is 0.77g.
8. a kind of high-resolution microminiature visible light varifocal optical system according to claim 1, it is characterised in that: a kind of
The service band of high-resolution microminiature visible light varifocal optical system be 0.48 μm~0.65 μm, focal length be 2.68mm~
17.5mm continuous zoom, 6.5 times of zoom ratio, visual field is 4.7 °~31 °, and the image space F number of object lens is 2.15~3, optical system
For transmission function in 250lp/mm, 0 visual field of different focal length position is all larger than 0.43, and full filed is all larger than 0.26, and systematical distortion is equal
Less than 4.31%, Pixel size is 2 μm.
9. a kind of high-resolution microminiature visible light varifocal optical system according to claim 1, it is characterised in that: described
A kind of overall length of high-resolution microminiature visible light varifocal optical system is 26.85mm, and maximum caliber is
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| WO2021134451A1 (en) * | 2019-12-31 | 2021-07-08 | 诚瑞光学(常州)股份有限公司 | Variable focal length optical system |
| WO2021168742A1 (en) * | 2020-02-27 | 2021-09-02 | 南昌欧菲精密光学制品有限公司 | Zooming optical system, zooming module, and electronic device |
| CN112014831B (en) * | 2020-09-25 | 2024-04-26 | 闪耀现实(无锡)科技有限公司 | Sensing device, intelligent glasses and lens for sensing device |
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Address after: 150000 Nanhu Street, Yingbin Road Concentrated Area, Harbin Development Zone, Heilongjiang Province Patentee after: Harbin Xinguang Photoelectric Technology Co., Ltd. Address before: 150000 Nanhu Street, Yingbin Road Concentrated Area, Harbin Development Zone, Heilongjiang Province Patentee before: Harbin Xinguang Photoelectric Technology Co., Ltd. |