CN106707466A - F11.5 mm machinery passive type athermal lens - Google Patents
F11.5 mm machinery passive type athermal lens Download PDFInfo
- Publication number
- CN106707466A CN106707466A CN201611169363.3A CN201611169363A CN106707466A CN 106707466 A CN106707466 A CN 106707466A CN 201611169363 A CN201611169363 A CN 201611169363A CN 106707466 A CN106707466 A CN 106707466A
- Authority
- CN
- China
- Prior art keywords
- positive lens
- lens
- passive type
- machinery passive
- machinery
- 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.)
- Pending
Links
- 125000006850 spacer group Chemical group 0.000 claims description 8
- 230000003287 optical effect Effects 0.000 abstract description 13
- 230000006978 adaptation Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 238000002834 transmittance Methods 0.000 abstract description 2
- 238000005057 refrigeration Methods 0.000 abstract 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000000149 penetrating effect Effects 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
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
- G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
- G02B13/0035—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having three lenses
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/08—Optical arrangements
- G01J5/0806—Focusing or collimating elements, e.g. lenses or concave mirrors
-
- 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
- G02B13/008—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras designed for infrared light
-
- 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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Lenses (AREA)
- Lens Barrels (AREA)
Abstract
The invention relates to a F11.5 mm machinery passive type athermal lens comprising a positive lens A, a positive lens B and a positive lens C arranged in order from left to right in the light incident direction. The F11.5 mm machinery passive type athermal lens is large in relative aperture, machinery passive type athermal and high in transmittance; in optical design, the F11.5 mm machinery passive type athermal lens can reasonably distribute focal power, can use the lens barrel materials of different coefficients of expansion to drive the whole lens group to move so as to compensate image plane drift, thus realizing temperature adaptation machinery passive type athermal; the F11.5 mm machinery passive type athermal lens can be matched with a long wave infrared non refrigeration type 384*288, 20 micron detector, thus carrying out real condition recording and monitoring tasks.
Description
Technical field
The present invention relates to a kind of f11.5mm machinery passive types without thermalization camera lens.
Background technology
Infrared acquisition has certain ability for penetrating the abilities such as cigarette, mist, haze, snow and identification camouflage, not strong by battlefield
Light, flash of light are disturbed and blinding, it is possible to achieve remote, round-the-clock observation, are particularly suited under night and bad-weather condition
Target acquisition.
Because the thermal refractive index coefficient of infrared optical material is larger, the acute variation of operating temperature can be to infrared optics system
System has serious influence, causes the problems such as system focal length change, image planes are drifted about, image quality declines.In order to adapt to special answering
With occasion, also require that camera lens adapts to adverse circumstances, with temperature self-adaptation ability.
The content of the invention
In view of the deficiencies in the prior art, it is passive that the technical problems to be solved by the invention are to provide a kind of f11.5mm machineries
Formula without thermalization camera lens, not only reasonable in design, and efficiently convenient.
In order to solve the above-mentioned technical problem, the technical scheme is that：A kind of f11.5mm machineries passive type is without thermalization mirror
Head, including along the light positive lens A that incident direction sets gradually from left to right, positive lens B and positive lens C.
Preferably, the airspace between the positive lens A and positive lens B be 5mm, the positive lens B and positive lens C it
Between airspace be 2.6mm.
Preferably, the positive lens A, positive lens B and positive lens C orders are arranged in body tube, and the positive lens A is used
A pieces trim ring is compressed, and the positive lens C is compressed with C pieces trim ring, is separated with AB spacer rings between the positive lens A and positive lens B, institute
Positive lens B and positive lens C is stated to be separated with BC spacer rings.
Compared with prior art, the invention has the advantages that：
（1）The present invention possesses object lens of large relative aperture, mechanical passive type without thermalization and the features such as high transmittance；
（2）Reasonable distribution focal power of the present invention, by the different coefficients of expansion lens barrel combination of materials drive the movement of whole group lens with
Compensation image planes drift, realizes the mechanical passive type of temperature self-adaptation without thermalization feature, to ensure that optical system picture element is excellent；
（3）The present invention can carry out document recording and monitoring with 384 × 288,20 μm of detector adaptations of LWIR Uncooled type
Task；
（4）The present invention carrys out balance system aberration using an even aspheric surface so that the structure of optical system is more simplified, is imaged matter
Amount is more preferable；
（5）The present invention is moved by whole group lens and realizes temperature-compensating and distance away from compensation, to ensure camera lens in high temperature and low temperature
Use requirement under environment；
（6）The present invention has carried out Rigidity Calculation, suitably increases wall thickness, improves intrinsic frequency, improves the vibration resistance of camera lens, it is ensured that
The use requirement of system.
The present invention will be further described in detail with reference to the accompanying drawings and detailed description.
Brief description of the drawings
Fig. 1 is the optical system schematic diagram of the embodiment of the present invention.
Fig. 2 is the optical lens structural representation of the embodiment of the present invention.
In figure：
A- positive lens A, B- positive lens B, C- positive lens C；
1- body tubes, 2-A piece trim rings, 3-C piece trim rings, 4-AB spacer rings, 5-BC spacer rings.
Specific embodiment
It is that features described above of the invention and advantage can be become apparent, special embodiment below, and coordinate accompanying drawing, make detailed
Carefully it is described as follows.
As shown in Figure 1 and 2, a kind of f11.5mm machinery passive type is without thermalization camera lens, including along light incidence side from left to right
To the positive lens A, positive lens B and positive lens C that set gradually.
In embodiments of the present invention, the airspace between the positive lens A and positive lens B is 5mm, the positive lens B
It is 2.6mm with the airspace between positive lens C.
In embodiments of the present invention, the positive lens A, positive lens B and positive lens C orders are arranged in body tube 1, institute
State positive lens A A pieces trim ring 2 to compress, the positive lens C is compressed with C pieces trim ring 3, is used between the positive lens A and positive lens B
AB spacer rings 4 separate, and the positive lens B and positive lens C is separated with BC spacer rings 5.
In embodiments of the present invention, the optical system being made up of above-mentioned lens set has reached following technical indicator：
The data of below table, will illustrate the optical parametric of the embodiment of the present invention.
Table one：Optical component parameter table
Table two：Aspherical surface data
Aspherical expression formula is：
Z represents the position of optical axis direction, and r represents the height in the vertical direction of relative optical axis, and c represents radius of curvature, and k represents circle
Cone coefficient,Represent asphericity coefficient.
Radius of curvature refers to the radius of curvature on each surface, and spacing is the spacing between adjacent two surface, for example, S1,
It is respectively positive lens A away from the surface with neighbouring positive lens B that S2 is, between the spacing of S1 refers to the center between S1 and S2 surfaces
Away from the rest may be inferred for other.
In aspherical surface data, E-n is represented, for example。
In embodiments of the present invention, the reasonable distribution focal power in optical design so that whole group lens movement it is less away from
From realize high/low temperature compensate；Multilayer lens barrel structure by different heat expansion coefficient in structure design cooperates, and drives whole
Group lens movement, realizes high/low temperature self adaptation without thermalization technology；Calculated according to optical design, whole group lens moving of the present invention is, whole group lens are negative away from detector, near detector for just.
The present invention is not limited to above-mentioned preferred forms, and anyone can show that other are each under enlightenment of the invention
The f11.5mm machinery passive types of the form of kind are without thermalization camera lens.All impartial changes done according to scope of the present invention patent with repair
Decorations, should all belong to covering scope of the invention.
Claims (3)
1. a kind of f11.5mm machineries passive type is without thermalization camera lens, it is characterised in that：Including along light from left to right incident direction according to
Positive lens A, the positive lens B and positive lens C of secondary setting.
2. f11.5mm machineries passive type according to claim 1 is without thermalization camera lens, it is characterised in that：The positive lens A with
Airspace between positive lens B is 5mm, and the airspace between the positive lens B and positive lens C is 2.6mm.
3. f11.5mm machineries passive type according to claim 1 is without thermalization camera lens, it is characterised in that：The positive lens A,
Positive lens B and positive lens C orders are arranged in body tube, and the positive lens A is compressed with A pieces trim ring, the positive lens C C
Piece trim ring is compressed, and is separated with AB spacer rings between the positive lens A and positive lens B, the positive lens B and positive lens C BC spacer rings
Separate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611169363.3A CN106707466A (en) | 2016-12-16 | 2016-12-16 | F11.5 mm machinery passive type athermal lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611169363.3A CN106707466A (en) | 2016-12-16 | 2016-12-16 | F11.5 mm machinery passive type athermal lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106707466A true CN106707466A (en) | 2017-05-24 |
Family
ID=58938990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611169363.3A Pending CN106707466A (en) | 2016-12-16 | 2016-12-16 | F11.5 mm machinery passive type athermal lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106707466A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107608061A (en) * | 2017-09-28 | 2018-01-19 | 福建福光股份有限公司 | A kind of f200mm refrigeration modes medium-wave infrared is without thermalization camera lens |
| CN109471246A (en) * | 2018-12-28 | 2019-03-15 | 福建福光天瞳光学有限公司 | LONG WAVE INFRARED optics is without thermalization camera lens and assembly method |
| CN111796419A (en) * | 2020-07-31 | 2020-10-20 | 华北水利水电大学 | Multi-lens spacer optical system suitable for large temperature difference environment and design method thereof |
| CN112114415A (en) * | 2020-09-29 | 2020-12-22 | 福建福光天瞳光学有限公司 | Medium-wave motor focusing infrared lens and assembling method thereof |
| CN116299982A (en) * | 2023-05-11 | 2023-06-23 | 宁波永新光学股份有限公司 | Long-focus receiving optical system of low-temperature drift laser radar |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003295052A (en) * | 2002-03-29 | 2003-10-15 | Fuji Photo Optical Co Ltd | Infrared lens |
| WO2004099841A2 (en) * | 2003-05-01 | 2004-11-18 | Raytheon Company | Compact wide-field-of-view imaging optical system |
| CN101167008A (en) * | 2006-01-30 | 2008-04-23 | 住友电气工业株式会社 | Infrared lens, infrared camera and night vision |
| CN105388577A (en) * | 2015-12-25 | 2016-03-09 | 福建福光股份有限公司 | Long-wave infrared mechanical passive type athermalized lens and compensation adjusting method thereof |
-
2016
- 2016-12-16 CN CN201611169363.3A patent/CN106707466A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003295052A (en) * | 2002-03-29 | 2003-10-15 | Fuji Photo Optical Co Ltd | Infrared lens |
| WO2004099841A2 (en) * | 2003-05-01 | 2004-11-18 | Raytheon Company | Compact wide-field-of-view imaging optical system |
| CN101167008A (en) * | 2006-01-30 | 2008-04-23 | 住友电气工业株式会社 | Infrared lens, infrared camera and night vision |
| CN105388577A (en) * | 2015-12-25 | 2016-03-09 | 福建福光股份有限公司 | Long-wave infrared mechanical passive type athermalized lens and compensation adjusting method thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107608061A (en) * | 2017-09-28 | 2018-01-19 | 福建福光股份有限公司 | A kind of f200mm refrigeration modes medium-wave infrared is without thermalization camera lens |
| CN109471246A (en) * | 2018-12-28 | 2019-03-15 | 福建福光天瞳光学有限公司 | LONG WAVE INFRARED optics is without thermalization camera lens and assembly method |
| CN109471246B (en) * | 2018-12-28 | 2024-03-05 | 福建福光天瞳光学有限公司 | Long-wave infrared optical athermalized lens and assembly method |
| CN111796419A (en) * | 2020-07-31 | 2020-10-20 | 华北水利水电大学 | Multi-lens spacer optical system suitable for large temperature difference environment and design method thereof |
| CN112114415A (en) * | 2020-09-29 | 2020-12-22 | 福建福光天瞳光学有限公司 | Medium-wave motor focusing infrared lens and assembling method thereof |
| CN112114415B (en) * | 2020-09-29 | 2024-05-10 | 福建福光天瞳光学有限公司 | Medium wave motor focusing infrared lens and assembly method thereof |
| CN116299982A (en) * | 2023-05-11 | 2023-06-23 | 宁波永新光学股份有限公司 | Long-focus receiving optical system of low-temperature drift laser radar |
| CN116299982B (en) * | 2023-05-11 | 2023-09-05 | 宁波永新光学股份有限公司 | Long-focus receiving optical system of low-temperature drift laser radar |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170524 |