CN107144900B - A kind of diaphragm and the optical instrument with the diaphragm - Google Patents
A kind of diaphragm and the optical instrument with the diaphragm Download PDFInfo
- Publication number
- CN107144900B CN107144900B CN201710484129.8A CN201710484129A CN107144900B CN 107144900 B CN107144900 B CN 107144900B CN 201710484129 A CN201710484129 A CN 201710484129A CN 107144900 B CN107144900 B CN 107144900B
- Authority
- CN
- China
- Prior art keywords
- diaphragm
- substrate
- detector
- optical instrument
- face type
- 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
- G02B5/00—Optical elements other than lenses
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Radiation Pyrometers (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The embodiment of the invention discloses a kind of diaphragms, the diaphragm has substrate, the pre-buried semiconductor chilling plate in the substrate, polishing spherical surface is processed into the first surface of the substrate, it is coated with reflectance coating in the polishing spherical surface, is equipped with the attachment device for connecting with face type driver in the second surface of the substrate.Semiconductor refrigerating has been carried out on the basis of the reflecting surface to diaphragm carries out polishing plated film, while having reduced the temperature and emissivity of diaphragm reflecting surface, reduces influence of diaphragm itself radiation to detector；Face type and position using the combination of face type driver and linear motor control diaphragm solve the problems, such as that becoming relative aperture infrared system is not available diaphragm inhibition stray radiation；The substrate of diaphragm uses carbon fibre composite, it is only necessary to which lesser driving force can make diaphragm reflector curvature change a lot, while the feature good using its thermal conductivity, improve the efficiency of semiconductor refrigerating.The present invention also provides a kind of optical instruments.
Description
Technical field
The present invention relates to optical technical fields, are related to a kind of diaphragm and the optical instrument with the diaphragm.
Background technique
For the detectivity for improving infrared imaging system, cold late matched design need to be carried out to inhibit infrared stray radiation,
But when such as optical system size is strictly limited, it cannot achieve 100% cold late efficiency, need to introduce external diaphragm.
The cold late solid angle of detector is greater than diaphragm solid angle, and diaphragm face can be seen in detector, and diaphragm is in environment temperature, and at detector
The operating temperature of 77K or so in Dewar bottle, therefore diaphragm is hyperthermia radiation source, while diaphragm surface for detector
External heat radiation can be reflected on detector, the stray radiation that diaphragm introduces has with its shaped position, material and surface characteristic
It closes.
In existing infrared diaphragm, only the diaphragm that position, fixed relative aperture optical system are fixed under room temperature is carried out
Design optimization, obtains such as spherical polishing film-coating type diaphragm, although the emissivity of diaphragm itself is inhibited, for diaphragm
Temperature do not control, its own radiation is still higher, meanwhile, it is opposite to the coaxial refraction-reflection zoom system, pancreatic system of such as heavy caliber
Aperture be in zooming procedure it is continually changing, cause stop position and curvature need with the movement of optical system stop position and
Change, conventional diaphragm is unable to satisfy the needs.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of diaphragm and with the optical instrument of the diaphragm, solution cold door screen by no means
The problem of matching infrared optical system stray radiation.
In a first aspect, the present invention provides a kind of diaphragm, the diaphragm has substrate, the pre-buried semiconductor system in the substrate
Cold, it is processed into polishing spherical surface in the first surface of the substrate, reflectance coating is coated in the polishing spherical surface, in the substrate
Second surface is equipped with the attachment device for connecting with face type driver.
Optionally, the substrate is carbon fibre composite substrate, and ply sequence is [0 °/90 °/45 °/- 45 °] ns.
Optionally, the substrate is radially equipped with the plug for plugging the semiconductor chilling plate on side wall
Mouthful.
Optionally, the diaphragm also has face type driver, and the face type driver has 6 and is along the circumferential direction evenly distributed with
On the second surface.
Optionally, the diaphragm is temperature door screen.
Second aspect, the present invention provide a kind of optical instrument, and the optical instrument has such as above-mentioned diaphragm.
Optionally, the optical instrument further includes the Power Component mobile for realizing the diaphragm.
Optionally, the optical instrument further include: optical filter, detector, the detector include detector window, detection
Device shell and detector body, the diaphragm, the detector window, the optical filter and the detector body are successively set
It sets.
Optionally, the Power Component is linear motor.
As can be seen from the above technical solutions, the embodiment of the present invention has the advantage that
Semiconductor refrigerating is carried out on the basis of the reflecting surface to diaphragm carries out polishing plated film, while it is anti-to reduce diaphragm
The temperature and emissivity for penetrating face reduce influence of diaphragm itself radiation to detector；Utilize face type driver and linear motor
Combination control diaphragm face type and position, match with optical system stop position, the reflection for seeing detector cut
Face area is zero, solves the problems, such as that becoming relative aperture infrared system is not available diaphragm inhibition stray radiation；The substrate of diaphragm
Using carbon fibre composite, the characteristics of using its highly resistance property broken, high tenacity, it is only necessary to which lesser driving force can make diaphragm anti-
It penetrates face curvature to change a lot, while the feature good using its thermal conductivity, improves the efficiency of semiconductor refrigerating.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the diaphragm provided in the embodiment of the present invention；
Fig. 2 is a kind of structural schematic diagram of the optical instrument provided in the embodiment of the present invention.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The model that the present invention protects all should belong in member's every other embodiment obtained without making creative work
It encloses.
Description and claims of this specification and term " first ", " second ", " third ", " in above-mentioned attached drawing
The (if present)s such as four " are to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should manage
The data that solution uses in this way are interchangeable under appropriate circumstances, so that the embodiments described herein can be in addition to illustrating herein
Or the sequence other than the content of description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that
Cover it is non-exclusive include, for example, containing the process, method, system, product or equipment of a series of steps or units need not limit
In step or unit those of is clearly listed, but may include be not clearly listed or for these process, methods, produce
The other step or units of product or equipment inherently.
As shown in connection with fig. 1, the present invention provides a kind of diaphragm 1, and the diaphragm 1 has substrate, pre-buried half in the substrate
Conductor cooling piece is processed into polishing spherical surface in the first surface of the substrate, reflectance coating is coated in the polishing spherical surface, described
The second surface of substrate is equipped with the attachment device for connecting with face type driver.
Comprehensively consider the mechanics and thermal characteristic of diaphragm 1, for guarantee 1 reflecting surface of diaphragm preparation precision, 1 substrate of diaphragm by
One-way tree aliphatic radical carbon fiber prepreg makes according to [0 °/90 °/45 °/- 45 °] ns quasi-isotropic mode laying.
1 first surface of diaphragm is the reflecting sphere for polishing plated film, reduces the emissivity of diaphragm 1 itself to reduce diaphragm 1
Direct radiation of the reflecting surface to detector.
Semiconductor chilling plate is uniformly distributed in around diaphragm 1, can free plug replacement, cold end is towards 1 reflecting surface side of diaphragm
To semiconductor chilling plate conducts the heat of 1 reflecting surface of diaphragm backward, can reduce by 1 reflecting surface of diaphragm to the direct spoke of detector
It penetrates.
The curvature of 1 first surface of diaphragm is calculated according to the geometric parameter of diaphragm 1 and cold finger, by the face type of 1 rear surface of diaphragm
Driver executes, and the Computation schema of curvature is the curvature half when emptying back into cold finger after being reflected with the sight of detector by diaphragm 1
Diameter is critical buckling, and the curvature of diaphragm 1 need to be less than the critical value；1 rear surface annular region mounting surface type driver of diaphragm, according to
Regular hexagon mode arrangement mode guarantees that 1 reflecting surface of diaphragm has uniform deformation effects, meanwhile, carbon fibre composite has
The characteristic of high tenacity, the highly resistance property broken and high limit allowable stress, it is only necessary to which lesser driving force can make 1 reflecting surface of diaphragm bent
Rate changes a lot.
When the position of diaphragm 1 needs to move in camera lens, driven using linear motor to 1 institute of optical system diaphragm
In position.
Optionally, the substrate is carbon fibre composite substrate, and ply sequence is [0 °/90 °/45 °/- 45 °] ns.
Optionally, the substrate is radially equipped with the plug-and-pull port for plugging the semiconductor chilling plate on side wall
6。
Optionally, the diaphragm 1 also has face type driver 7, and the face type driver 7 has 6 and along the circumferential direction
On the uniformly distributed second surface.
Optionally, the diaphragm 1 is temperature door screen.
As shown in connection with fig. 2, the present invention provides a kind of optical instrument, and the optical instrument has such as above-mentioned diaphragm 1.
Optionally, the optical instrument further includes the Power Component mobile for realizing the diaphragm 1.
Optionally, the optical instrument further include: optical filter 3, detector, the detector include detector window 2, visit
Survey device shell 4 and detector body 5, the diaphragm 1, the detector window 2, the optical filter 3 and the detector sheet
Body 5 is set gradually.
Optionally, the Power Component is linear motor, and the curvature of 1 first surface of diaphragm is several according to diaphragm 1 and cold finger
What parameter determines that the radius of curvature sight of detector empties back into cold finger after being reflected by diaphragm 1 when is critical buckling, diaphragm 1
Curvature need to be less than the critical value, diaphragm 1 can drives by linear motor to required position, which is optical system diaphragm 1
It sets.
Semiconductor refrigerating has been carried out on the basis of the reflecting surface to diaphragm 1 carries out polishing plated film, while reducing diaphragm 1
The temperature and emissivity of reflecting surface reduce influence of diaphragm 1 itself radiation to detector；Utilize face type driver and straight-line electric
The face type of the combination control diaphragm 1 of machine and position, match with 1 position of optical system diaphragm, see detector anti-
Penetrating area of section is zero, solves the problems, such as that becoming relative aperture infrared system is not available the inhibition stray radiation of diaphragm 1；Diaphragm 1
Substrate use carbon fibre composite, the characteristics of using its highly resistance property broken, high tenacity, it is only necessary to which lesser driving force can make
1 reflector curvature of diaphragm changes a lot, while the feature good using its thermal conductivity, improves the effect of semiconductor refrigerating
Rate.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed system, device and method can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit
It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components
It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or
The mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, the indirect coupling of device or unit
It closes or communicates to connect, can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of above-described embodiment is can
It is completed with instructing relevant hardware by program, which can be stored in a computer readable storage medium, storage
Medium may include: read-only memory (ROM, Read Only Memory), random access memory (RAM, Random
Access Memory), disk or CD etc..
The optical instrument to a kind of diaphragm provided by the present invention and with the diaphragm is described in detail above, for
Those of ordinary skill in the art, thought according to an embodiment of the present invention, have in specific embodiments and applications
Change place, in conclusion the contents of this specification are not to be construed as limiting the invention.
Claims (7)
1. a kind of diaphragm, which is characterized in that the diaphragm has substrate, the pre-buried semiconductor chilling plate in the substrate, in institute
The first surface for stating substrate is processed into polishing spherical surface, reflectance coating is coated in the polishing spherical surface, in the second surface of the substrate
Equipped with the attachment device for being connect with face type driver；
The substrate is carbon fibre composite substrate, and ply sequence is [0 °/90 °/45 °/- 45 °] ns；
The diaphragm also has face type driver, and the face type driver has 6 and along the circumferential direction uniformly distributed second table
On face.
2. diaphragm according to claim 1, which is characterized in that the substrate is radially equipped on side wall for inserting
Pull out the plug-and-pull port of the semiconductor chilling plate.
3. diaphragm according to claim 1, which is characterized in that the diaphragm is temperature door screen.
4. a kind of optical instrument, which is characterized in that the optical instrument includes light as claimed any one in claims 1 to 3
Door screen.
5. optical instrument according to claim 4, which is characterized in that the optical instrument further includes for realizing the light
The mobile Power Component of door screen.
6. optical instrument according to claim 4, which is characterized in that the optical instrument further include: optical filter, detection
Device, the detector include detector window, detector housing and detector body, the diaphragm, the detector window,
The optical filter and the detector body are set gradually.
7. optical instrument according to claim 5, which is characterized in that the Power Component is linear motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710484129.8A CN107144900B (en) | 2017-06-23 | 2017-06-23 | A kind of diaphragm and the optical instrument with the diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710484129.8A CN107144900B (en) | 2017-06-23 | 2017-06-23 | A kind of diaphragm and the optical instrument with the diaphragm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107144900A CN107144900A (en) | 2017-09-08 |
| CN107144900B true CN107144900B (en) | 2019-10-29 |
Family
ID=59781889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710484129.8A Active CN107144900B (en) | 2017-06-23 | 2017-06-23 | A kind of diaphragm and the optical instrument with the diaphragm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107144900B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107608048B (en) * | 2017-11-08 | 2020-03-03 | 北京仿真中心 | Cooling device of low-radiation iris diaphragm |
| CN110308504A (en) * | 2019-06-20 | 2019-10-08 | 上海微波技术研究所（中国电子科技集团公司第五十研究所） | Cold stop and detector system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2483739Y (en) * | 2001-07-20 | 2002-03-27 | 中国科学院上海技术物理研究所 | Non-refrigeration type infrared target light diaphragm |
| CN101923214A (en) * | 2010-08-04 | 2010-12-22 | 中国科学院光电技术研究所 | Deformed secondary mirror based on piezoelectric actuator |
| CN102252760A (en) * | 2011-06-20 | 2011-11-23 | 北京理工大学 | Telescopic U-shaped border blackbody field stop capable of controlling temperature |
| CN203414678U (en) * | 2013-06-28 | 2014-01-29 | 中国科学院西安光学精密机械研究所 | Reflective deformable mirror zoom system |
| CN106125298A (en) * | 2016-08-31 | 2016-11-16 | 中国科学院长春光学精密机械与物理研究所 | Contactless space optical remote sensor reflecting mirror surface shape control system |
-
2017
- 2017-06-23 CN CN201710484129.8A patent/CN107144900B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2483739Y (en) * | 2001-07-20 | 2002-03-27 | 中国科学院上海技术物理研究所 | Non-refrigeration type infrared target light diaphragm |
| CN101923214A (en) * | 2010-08-04 | 2010-12-22 | 中国科学院光电技术研究所 | Deformed secondary mirror based on piezoelectric actuator |
| CN102252760A (en) * | 2011-06-20 | 2011-11-23 | 北京理工大学 | Telescopic U-shaped border blackbody field stop capable of controlling temperature |
| CN203414678U (en) * | 2013-06-28 | 2014-01-29 | 中国科学院西安光学精密机械研究所 | Reflective deformable mirror zoom system |
| CN106125298A (en) * | 2016-08-31 | 2016-11-16 | 中国科学院长春光学精密机械与物理研究所 | Contactless space optical remote sensor reflecting mirror surface shape control system |
Non-Patent Citations (1)
| Title |
|---|
| 制冷型红外光学系统温栏杂散辐射分析及消除方法;刘洋，等;《应用光学》;20120131;第186-190页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107144900A (en) | 2017-09-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10663738B2 (en) | System and method for HMD configurable for various mobile device sizes | |
| CN107144900B (en) | A kind of diaphragm and the optical instrument with the diaphragm | |
| US11351006B2 (en) | System for stereoscopic visualization enabling depth perception of a surgical field | |
| CN106094155B (en) | Imaging lens | |
| US20160349509A1 (en) | Mixed-reality headset | |
| CN103728728B (en) | Dress the optical system of display | |
| US20020146248A1 (en) | Radially-oriented planar surfaces for flare reduction in panoramic cameras | |
| CN203133384U (en) | Telescope optical system with range finding function and telescope module | |
| CN106443981B (en) | A kind of object lens of large relative aperture refrigeration mode infrared optical lens | |
| EP2342590A1 (en) | Reflective triplet optical form with external rear aperture stop for cold shielding | |
| US11714256B2 (en) | Electronic devices with optical module positioning systems | |
| CN108697321A (en) | System and device for eye tracking | |
| CN203333752U (en) | High vacuum coating fixture for hemispherical lens | |
| US20200088976A1 (en) | Lens assembly and optical device comprising same | |
| CN211718555U (en) | Liquid lens, imaging system and electronic device | |
| CN105425374A (en) | Optical imaging device and condenser | |
| Gong et al. | Design of a novel panoramic lens without central blindness | |
| CN110049213A (en) | A kind of light guide module and terminal device | |
| CN104090350A (en) | Long-wave infrared objective lens | |
| CN102243365A (en) | Bending Optical Imaging System | |
| CN207663141U (en) | Monotubular micro imaging system | |
| CN107807441B (en) | catadioptric optical imaging system | |
| CN104503082A (en) | Compound imaging simulation optical system | |
| CN109491057A (en) | A kind of no thermalization ultra-large vision field medium-wave infrared optical system | |
| CN209072589U (en) | Using the intelligent monitoring device of binocular camera |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |