CN104965293B - A kind of optical lens that aberration is eliminated using diffraction surfaces - Google Patents
A kind of optical lens that aberration is eliminated using diffraction surfaces Download PDFInfo
- Publication number
- CN104965293B CN104965293B CN201510266103.7A CN201510266103A CN104965293B CN 104965293 B CN104965293 B CN 104965293B CN 201510266103 A CN201510266103 A CN 201510266103A CN 104965293 B CN104965293 B CN 104965293B
- Authority
- CN
- China
- Prior art keywords
- diffraction surfaces
- optical lens
- planoconvex
- main body
- planoconvex spotlight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0055—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/42—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
- G02B27/4205—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having a diffractive optical element [DOE] contributing to image formation, e.g. whereby modulation transfer function MTF or optical aberrations are relevant
- G02B27/4211—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having a diffractive optical element [DOE] contributing to image formation, e.g. whereby modulation transfer function MTF or optical aberrations are relevant correcting chromatic aberrations
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/203—Filters having holographic or diffractive elements
Abstract
The present invention relates to optical fields, and in particular to a kind of optical lens.A kind of optical lens that aberration is eliminated using diffraction surfaces, including optical lens main body, optical lens main body is planoconvex spotlight, and planoconvex spotlight includes a plane, a convex outward；Plane is a diffraction surfaces with any one in convex outward.The present invention, by diffraction surfaces, is eliminated system aberration and is improved wave front aberration by being a diffraction surfaces by the plane in traditional optical lens main body or any one improvement in convex outward using diffraction surfaces negative dispersion and corrugated any reshaping characteristic.
Description
Technical field
The present invention relates to optical fields, and in particular to a kind of optical lens.
Background technology
In the optical system of single eyeglass, continuously attempt to that can generally to obtain image quality preferable by designer
Optical lens, but due to the presence of aberration, as a result but tend not to the demand for meeting client.
The content of the invention
It is an object of the invention to provide a kind of optical lens that aberration is eliminated using diffraction surfaces, are asked with solving above-mentioned technology
Topic.
Following technical scheme may be employed to realize in technical problem solved by the invention：
A kind of optical lens that aberration is eliminated using diffraction surfaces, including an optical lens main body, which is characterized in that the light
It is planoconvex spotlight to learn lens bodies, and the planoconvex spotlight includes a plane, a convex outward；
The plane is a diffraction surfaces with any one in the convex outward.
The present invention is by being one by the plane in traditional optical lens main body or any one improvement in convex outward
Diffraction surfaces by diffraction surfaces, are eliminated system aberration and are improved ripple using diffraction surfaces negative dispersion and corrugated any reshaping characteristic
Preceding aberration.
As a preferred embodiment, the plane is a diffraction surfaces.
Diffraction micro structural is produced with fine processing method in the plane surface, to form the diffraction surfaces.Using spreading out
It penetrates the negative dispersion property of optical element and the dispersion of refractor is offseted, and then realize achromatism.Compared to conventional lenses
Structure, it is this to roll over the hybrid lens structure unique energy in terms of aberration is corrected that spreads out, it is possible to reduce the usage amount of lens the piece number,
And then mitigate system weight, reduce system cost.With the progress of optical element processing technology, using the method for diamond turning
To carrying out the processing of accurate diffraction surfaces.The phase mehtod function of the diffraction surfaces of rotational symmetry is φ(r)=A1r2+A2r4+A3r6
+ ..., in formula：R be normalized radial coordinate, A1, A2Deng for phase coefficient.
The secondary phase coefficient of the diffraction surfaces is 5.0338*10-8~7.0812*10-8, four positions of the diffraction surfaces
Phase coefficient is -10.423*10-6~-9.4234*10-6, six phase coefficients of the diffraction surfaces are 7.6241*10-8~
9.8244*10-8。
By optimizing the phase coefficient of diffraction surfaces, optimize the imaging effect of planoconvex spotlight.
The coefficient of the diffraction surfaces is
| Parameter | Value |
| Construct wavelength | 587.5618 |
| A1 | 6.0338e-008 |
| A2 | -9.4234e-006 |
| A3 | 8.6241e-008 |
| A4 | 0 |
As another preferred embodiment, the convex outward is a diffraction surfaces.
Diffraction micro structural is produced with fine processing method on the convex outward surface, to form the diffraction surfaces.Profit
It is offseted with the negative dispersion property of diffraction optical element and the dispersion of refractor, and then realizes achromatism.Compared to tradition
Lens arrangement, it is this to roll over the hybrid lens structure unique energy in terms of aberration is corrected that spreads out, it is possible to reduce lens the piece number makes
Dosage, and then mitigate system weight, reduce system cost.With the progress of optical element processing technology, using diamond turning
Method to carrying out the processing of accurate diffraction surfaces.The phase mehtod function of the diffraction surfaces of rotational symmetry is φ(r)=A1r2+A2r4+
A3r6+ ..., in formula：R be normalized radial coordinate, A1, A2Deng for phase coefficient.
The secondary phase coefficient of the diffraction surfaces is 4.0812*10-10~6.0812*10-10, four positions of the diffraction surfaces
Phase coefficient is -7.5254*10-8~-5.5254*10-8, six phase coefficients of the diffraction surfaces are 6.8244*10-7~
8.8244*10-7。
By optimizing the phase coefficient of diffraction surfaces, optimize the imaging effect of planoconvex spotlight.
The coefficient of the diffraction surfaces is
| Parameter | Value |
| Construct wavelength | 587.5618 |
| A1 | 5.0812e-010 |
| A2 | -6.5254e-008 |
| A3 | 7.8244e-007 |
| A4 | 0 |
As a preferred embodiment, the optical lens main body is the optical lens main body being made of two planoconvex spotlights,
The plane of described two planoconvex spotlights is a diffraction surfaces；
Two planoconvex spotlights are respectively the first planoconvex spotlight, and the second planoconvex spotlight, first planoconvex spotlight is located at described
The top of second planoconvex spotlight, the angle of first planoconvex spotlight and second planoconvex spotlight are not more than 165 °, and not small
In 125 °.
The present invention is diffraction surfaces by the convex outward for the optical lens main body being made of two planoconvex spotlights, convenient for three-dimensional
Elimination system aberration during imaging.
As another preferred embodiment, the optical lens main body is the optical lens master being made of two planoconvex spotlights
Body, the convex outward of described two planoconvex spotlights is diffraction surfaces；
Two planoconvex spotlights are respectively the first planoconvex spotlight, and the second planoconvex spotlight, first planoconvex spotlight is located at described
The top of second planoconvex spotlight, the angle of first planoconvex spotlight and second planoconvex spotlight are not more than 165 °, and not small
In 125 °.
The present invention is diffraction surfaces by the convex outward for the optical lens main body being made of two planoconvex spotlights, convenient for three-dimensional
Elimination system aberration during imaging.
The diffraction surfaces are the diffraction surfaces being made of diffraction grating.
Blind round hole is equidistantly placed on the convex outward or the plane, the aperture of the blind round hole is not more than
1mm, for the spacing of the blind round hole no more than 1cm, the depth of the blind round hole is not more than 100 μm.
It is easy to implement pinhole difiration.
The unlimited material of optical lens main body：
The optical lens main body can be optical lens main body made of acrylic material.The acrylic material transparency
Good, quality is slim and graceful, cheap, is easy to be molded.
The optical lens main body can also be the optical lens main body that resin material is made.Resin material quality is slim and graceful,
Impact resistance, easy making process, it is of low cost.
The optical lens main body can also be optical lens main body made of optical glass.It is optical glass high temperature resistant, swollen
Swollen coefficient is low, high mechanical strength, chemical property are good.
Uniformly coated with an anti-blue light film layer on the convex outward, the thickness of the anti-blue light film layer is not more than 500 μm,
And not less than 100 μm.
By anti-blue light film layer, sight protectio during for observing user.The present invention passes through to anti-blue light thicknesses of layers
Optimization, while helping to ensure that imaging effect, play protection eyesight effect.
The plane is connected with the convex outward by an annular curved surface, and the outer wall of the ring-type curved surface is equipped with a gear
Photosphere.
Reduce stray light.
The thickness of the light blocking layer is not more than 1mm, and not less than 10 μm.Prevent that thickness is blocked up, cost of idleness, thickness mistake
Thin, being in the light property is bad.
The light blocking layer can be the light blocking layer formed by the coating of AZ optical cements.AZ positive photoresists when thickness be more than 10 μm when,
It is nearly opaque in the ultraviolet region of 200~285nm.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Specific embodiment
It is an object of the invention to provide a kind of optical lens that aberration is eliminated using diffraction surfaces, are asked with solving above-mentioned technology
Topic.
Following technical scheme may be employed to realize in technical problem solved by the invention：
A kind of optical lens that aberration is eliminated using diffraction surfaces, including optical lens main body 3, optical lens main body 3 is flat
Convex lens, planoconvex spotlight include a plane 1, a convex outward 2；Plane 1 is a diffraction surfaces with any one in convex outward 2.
The present invention is led to by being a diffraction surfaces by the plane in traditional optical lens main body or any one improvement in convex outward
Diffraction surfaces are crossed, system aberration is eliminated using diffraction surfaces negative dispersion and corrugated any reshaping characteristic and improves wave front aberration.
The unlimited material of optical lens main body：Optical lens main body can be optical lens main body made of acrylic material.
The acrylic material transparency is good, and quality is slim and graceful, cheap, is easy to be molded.Optical lens main body can also be resin material system
Into optical lens main body.Resin material quality is slim and graceful, impact resistance, easy making process, it is of low cost.Optical lens main body can be with
For optical lens main body made of optical glass.Optical glass high temperature resistant, the coefficient of expansion are low, high mechanical strength, chemical property are good.
As a preferred embodiment, plane 1 is a diffraction surfaces.On 1 surface of plane diffraction is produced with fine processing method
Micro-structure, to form diffraction surfaces.It is offseted using the negative dispersion property of diffraction optical element and the dispersion of refractor, and then
Realize achromatism.It is this to roll over the hybrid lens structure unique energy in terms of aberration is corrected that spreads out compared to conventional lenses structure,
The usage amount of lens the piece number can be reduced, and then mitigates system weight, reduces system cost.With optical element processing technology
Progress, using processing of the method for diamond turning to the accurate diffraction surfaces of progress.The phase mehtod letter of the diffraction surfaces of rotational symmetry
Number is φ(r)=A1r2+A2r4+A3r6+ ..., in formula：R be normalized radial coordinate, A1, A2Deng for phase coefficient.
The secondary phase coefficient of diffraction surfaces is 5.0338*10-8~7.0338*10-8, four phase coefficients of diffraction surfaces for-
10.423*10-6~-9.4234*10-6, six phase coefficients of diffraction surfaces are 7.6241*10-8~9.6241*10-8。
The coefficient of diffraction surfaces is
| Parameter | Value |
| Construct wavelength | 587.5618 |
| A1 | 6.0338e-008 |
| A2 | -9.4234e-006 |
| A3 | 8.6241e-008 |
| A4 | 0 |
As another preferred embodiment, convex outward 2 is a diffraction surfaces.
Diffraction micro structural is produced with fine processing method on 2 surface of convex outward, to form diffraction surfaces.Utilize diffraction light
It learns the negative dispersion property of element and the dispersion of refractor is offseted, and then realize achromatism.Compared to conventional lenses structure,
It is this to roll over the hybrid lens structure unique energy in terms of aberration is corrected that spreads out, it is possible to reduce the usage amount of lens the piece number, and then
Mitigate system weight, reduce system cost.With the progress of optical element processing technology, using diamond turning method into
The processing of the accurate diffraction surfaces of row.The phase mehtod function of the diffraction surfaces of rotational symmetry is φ(r)=A1r2+A2r4+A3r6+ ..., formula
In：R be normalized radial coordinate, A1, A2Deng for phase coefficient.
The secondary phase coefficient of diffraction surfaces is 4.0812*10-10~6.0812*10-10, four phase coefficients of diffraction surfaces
For -7.5254*10-8~-5.5254*10-8, six phase coefficients of diffraction surfaces are 6.8244*10-7~8.8244*10-7。
The coefficient of diffraction surfaces is
| Parameter | Value |
| Construct wavelength | 587.5618 |
| A1 | 5.0812e-010 |
| A2 | -6.5254e-008 |
| A3 | 7.8244e-007 |
| A4 | 0 |
As a preferred embodiment, optical lens main body is the optical lens main body being made of two planoconvex spotlights, two
The plane of planoconvex spotlight is a diffraction surfaces；Two planoconvex spotlights are respectively the first planoconvex spotlight, and the second planoconvex spotlight, first is flat
Convex lens is located at the top of the second planoconvex spotlight, and the angle of the first planoconvex spotlight and the second planoconvex spotlight is not no more than 165 °, and not
Less than 125 °.The present invention is diffraction surfaces by the convex outward for the optical lens main body being made of two planoconvex spotlights, convenient for three
Elimination system aberration during dimension imaging.
As another preferred embodiment, optical lens main body is the optical lens main body being made of two planoconvex spotlights, two
The convex outward of a planoconvex spotlight is diffraction surfaces；Two planoconvex spotlights are respectively the first planoconvex spotlight, the second planoconvex spotlight, and
One planoconvex spotlight is located at the top of the second planoconvex spotlight, the angle of the first planoconvex spotlight and the second planoconvex spotlight no more than 165 °,
And not less than 125 °.The present invention is diffraction surfaces by the convex outward for the optical lens main body being made of two planoconvex spotlights, just
Elimination system aberration when three-dimensional imaging.
Diffraction surfaces are the diffraction surfaces being made of diffraction grating.It is equidistantly placed on convex outward 2 or plane 1 circular blind
Hole, the aperture of blind round hole is no more than 1mm, and for the spacing of blind round hole no more than 1cm, the depth of blind round hole is not more than 100 μm.
It is easy to implement pinhole difiration.
Uniformly coated with an anti-blue light film layer on convex outward 2, the thickness of anti-blue light film layer is not more than 500 μm, and not small
In 100 μm.By anti-blue light film layer, sight protectio during for observing user.The present invention passes through to anti-blue light thicknesses of layers
Optimization, while helping to ensure that imaging effect, play protection eyesight effect.
Plane 1 is connected with convex outward 2 by an annular curved surface, and the outer wall of annular curved surface is equipped with a light blocking layer.It reduces
Stray light.The thickness of light blocking layer is not more than 1mm, and not less than 10 μm.Prevent that thickness is blocked up, cost of idleness, thickness is excessively thin, is in the light
Property is bad.Light blocking layer can be the light blocking layer formed by the coating of AZ optical cements.AZ positive photoresists are when thickness is more than 10 μm, 200
The ultraviolet region of~285nm is nearly opaque.
Basic principle of the invention and main feature and advantages of the present invention has been shown and described above.The skill of the industry
Art personnel it should be appreciated that the present invention is not limited to the above embodiments, the above embodiments and description only describe
The principle of the present invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these
Changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and
Its equivalent thereof.
Claims (1)
1. it is a kind of using diffraction surfaces eliminate aberration optical lens, including optical lens main body, the optical lens main body be by
The optical lens main body that two planoconvex spotlights are formed, the planoconvex spotlight include a plane, a convex outward；
The convex outward of described two planoconvex spotlights is a diffraction surfaces；
Two planoconvex spotlights are respectively the first planoconvex spotlight, and the second planoconvex spotlight, first planoconvex spotlight is positioned at described second
The top of planoconvex spotlight, the angle of first planoconvex spotlight and second planoconvex spotlight is not more than 165 °, and is not less than
125°；
The phase mehtod function of two diffraction surfaces is φ(r)=A1r2+A2r4+A3r6+ ..., in formula：R sits for normalized radius
Mark, A1, A2, A3For phase coefficient；
The secondary phase coefficient of described two diffraction surfaces is 4.0812*10-10~6.0812*10-10, the four of described two diffraction surfaces
Secondary phase coefficient is -7.5254*10-8~-5.5254*10-8, six phase coefficients of described two diffraction surfaces are 6.8244*10-7~8.8244*10-7；
Blind round hole is equidistantly placed in the plane of the convex outward of described two planoconvex spotlights or described two planoconvex spotlights,
The aperture of the blind round hole is not more than 1mm, and the spacing of the blind round hole is no more than 1cm, and the depth of the blind round hole is not
More than 100 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510266103.7A CN104965293B (en) | 2015-05-22 | 2015-05-22 | A kind of optical lens that aberration is eliminated using diffraction surfaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510266103.7A CN104965293B (en) | 2015-05-22 | 2015-05-22 | A kind of optical lens that aberration is eliminated using diffraction surfaces |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104965293A CN104965293A (en) | 2015-10-07 |
| CN104965293B true CN104965293B (en) | 2018-06-01 |
Family
ID=54219334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510266103.7A Active CN104965293B (en) | 2015-05-22 | 2015-05-22 | A kind of optical lens that aberration is eliminated using diffraction surfaces |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104965293B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105759439A (en) * | 2016-04-08 | 2016-07-13 | 北京航天计量测试技术研究所 | Infrared refractive-diffractive optical structure suitable for side window imaging |
| CN109143574B (en) * | 2018-09-27 | 2020-10-30 | 湖北工业大学 | Method for eliminating chromatic aberration of lens |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6130785A (en) * | 1997-05-21 | 2000-10-10 | Asahi Kogaku Kogyo Kabushiki Kaisha | Eyepiece lens system |
| JP2003295052A (en) * | 2002-03-29 | 2003-10-15 | Fuji Photo Optical Co Ltd | Infrared lens |
| KR100468855B1 (en) * | 2002-11-11 | 2005-01-29 | 삼성전자주식회사 | Hybrid lens with high numerical number |
| JP2005084359A (en) * | 2003-09-09 | 2005-03-31 | Matsushita Electric Ind Co Ltd | Lens |
| CN102023133A (en) * | 2010-10-15 | 2011-04-20 | 浙江大学 | Multispectral hybrid fish eye imaging system for rice canopy |
-
2015
- 2015-05-22 CN CN201510266103.7A patent/CN104965293B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104965293A (en) | 2015-10-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI627463B (en) | Ocular optical system | |
| TWI684786B (en) | Optical system | |
| TWI647488B (en) | Optical components and their manufacturing methods, as well as window components and building materials | |
| CN104597531B (en) | Self-supporting film, self-supporting structure, and method for manufacturing self-supporting film | |
| CN105807401B (en) | 1 " target surface SWIR3514 high-performance short-wave infrared camera lens | |
| TWI438477B (en) | Capturing lens system | |
| TWI736685B (en) | Laminated light-blocking film, and light-blocking ring for optical instrument, lens unit and camera module using the same | |
| CN207833090U (en) | A kind of wide-angle machine visual lens | |
| WO2014198206A1 (en) | Thin film having stereoscopic floating image, and manufacturing method thereof | |
| CN104965293B (en) | A kind of optical lens that aberration is eliminated using diffraction surfaces | |
| US10120202B2 (en) | Patterned articles and methods for coating substrates with a patterned layer | |
| CN203433138U (en) | Low warping degree infrared cutoff filter | |
| TW201606380A (en) | A method of vacuum evaporation coating process that effectively block blue light and infra red light on optical lenses | |
| CN101556344A (en) | Optical element | |
| JP2009237509A (en) | Lens for eyeglasses | |
| JP2013065024A5 (en) | ||
| CN105867005A (en) | A brightness enhancement film with an anti-electromagnetic wave effect and a method for preparing the same | |
| JP6404465B2 (en) | Laser engraving optical lens | |
| EP2975459A3 (en) | Binary photomask blank, preparation thereof, and preparation of binary photomask | |
| CN204679706U (en) | A kind of optical lens improving imaging effect | |
| CN205899065U (en) | A phase plate for contrast phase microscope | |
| US9594192B2 (en) | Optical element, optical system, and method of manufacturing optical element | |
| TW202036140A (en) | Spacer for lens, and laminated light-shielding member, light-shielding ring, lens unit and camera module using the spacer | |
| CN105738993A (en) | Optical filter and lens module with optical filter | |
| RU2555183C1 (en) | Flat lens from leuco sapphire with focus of e waves |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |