CN209674103U - A kind of optical phase tuner based on piezoelectric ceramic technology - Google Patents
A kind of optical phase tuner based on piezoelectric ceramic technology Download PDFInfo
- Publication number
- CN209674103U CN209674103U CN201920634508.5U CN201920634508U CN209674103U CN 209674103 U CN209674103 U CN 209674103U CN 201920634508 U CN201920634508 U CN 201920634508U CN 209674103 U CN209674103 U CN 209674103U
- Authority
- CN
- China
- Prior art keywords
- piezoelectric ceramics
- circular piezoelectric
- upper cover
- cover plate
- circular
- 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.)
- Expired - Fee Related
Links
Landscapes
- Mechanical Light Control Or Optical Switches (AREA)
Abstract
A kind of optical phase tuner based on piezoelectric ceramic technology of the utility model including circular piezoelectric ceramics, is separately positioned on the upper cover plate and lower cover slip, the transparent fluid material for being filled in circular piezoelectric ceramics throughhole portions, the spring for connecting upper cover plate and circular piezoelectric ceramics at circular piezoelectric ceramics both ends；The upper cover plate is located at the top of circular piezoelectric ceramics, the spring is set in the outer surface of circular piezoelectric ceramics, one end of spring is connect with circular piezoelectric ceramics, the other end is connect with upper cover plate, spring is for connecting upper cover plate and circular piezoelectric ceramics, and it is used to support upper cover plate, there are gaps between upper cover plate and circular piezoelectric ceramics upper surface.Applying voltage in circular piezoelectric ceramics makes its length on optical direction change with voltage control, and light path or phase of the intracavitary transparent fluid of adjustable fluid on optical direction is driven to change, and reaches beam phase control purpose.
Description
Technical field
The utility model belongs to the technical field of optical imagery and optical information processing device, more particularly, to one kind based on pressure
The optical phase tuner of electroceramics technology.
Background technique
Difficulty is brought to telescope mirror finish and movement etc. since single telescopic aperture is excessive, it is very much
Researcher has started the research to optical synthesis aperture technology, this technology be exactly with multiple small-bore optical mirror planes or
Optical system is comprehensive at heavy caliber, by optical path, the adjustment and phase matched of mirror surface, so that by the light of each sub-aperture altogether
With same-phase requirement is met on focal plane, to realize the coherent superposition of light field, reach at a gulp with the comparable list of clear aperture
The diffraction resolution of diameter system.At present optical synthesis aperture technology have become increase look in the distance aperture of mirror, improve telescope differentiate
A kind of important means of rate.To obtain higher angular resolution, it is necessary to increase the aperture of telescope.In fact, optics tune
The difficult point of phase device is phase controlling and tuning.Because traditional optical phase modulation apparatus structure is relative complex, manufacturing process is more numerous
It is trivial.
Summary of the invention
The utility model combines the automatically controlled adjustable technology of piezoelectric ceramics length with liquid control technology, devises one kind
Optical phase tuner based on piezoelectric ceramic technology.
A kind of optical phase tuner based on piezoelectric ceramic technology of the utility model, including circular piezoelectric ceramics,
It is separately positioned on the upper cover plate at circular piezoelectric ceramics both ends and lower cover slip, is filled in the saturating of circular piezoelectric ceramics throughhole portions
Bright fluent material, the spring for connecting upper cover plate and circular piezoelectric ceramics；The lower cover slip passes through viscose glue and annular shape
The connection of piezoelectric ceramics lower end surface, thus sealed circular ring shape piezoelectric ceramics through-hole lower ending opening part, the upper cover plate is located at circle
The top of annular piezoelectric ceramics, the spring are set in the outer surface of circular piezoelectric ceramics, one end of spring and annular shape
Piezoelectric ceramics connection, the other end are connect with upper cover plate, and spring is used to support for connecting upper cover plate and circular piezoelectric ceramics
Upper cover plate, there are gaps between upper cover plate and circular piezoelectric ceramics upper surface.
The cavity that circular piezoelectric ceramics throughhole portions are formed is referred to as adjustable fluid chamber, intracavitary full of transparent in adjustable fluid
Fluent material, the intracavitary fluent material of adjustable fluid are adjustable fluid column, if being length along circular piezoelectric ceramics axial direction
Direction, light beam applies voltage along the axial incident adjustable fluid column of circular piezoelectric ceramics on circular piezoelectric ceramics, circular
The length of piezoelectric ceramics is controlled with voltage and is changed, and drives light path of the intracavitary transparent fluid of adjustable fluid on optical direction
Or phase changes, to reach beam phase control purpose.
Further, the circular piezoelectric ceramics inside and outside wall is coated with insulating layer.Inner wall is coated with insulating layer can be with
Circular piezoelectric ceramics inner wall is protected not corroded for a long time by adjustable fluid cavity fluid, outer wall is coated with insulating layer and can protect
Guard circle annular piezoelectric ceramic inner walls are not by the erosion of external environment.
Further, upper cover plate and circular piezoelectric ceramics end surfaces are 0.1-3mm.
Beneficial effect
The utility model controls piezoelectric ceramics length-adjusting applied to fluid, and the complex devices such as motor are not used, and makes
It obtains cost of manufacture and producting process difficulty all substantially reduces, be that a kind of structure is simple, can easily be accommodated, optics phase converter with high accuracy
Part is worth, it will be widely used in optical imagery and optical information processing field with important economic and technical.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Wherein, 1, piezoelectric ceramics；2, upper cover plate；3, lower cover slip；4, adjustable fluid chamber；5, spring.
Specific embodiment
Such as Fig. 1, a kind of optical phase tuner based on piezoelectric ceramic technology, including circular piezoelectric ceramics 1 are circular
1 both ends of piezoelectric ceramics are provided with transparent upper cover plate 2 and lower cover slip 3, and lower cover slip 3 is with viscose glue by circular 1 lower end of piezoelectric ceramics
Face sealing, the throughhole portions of circular piezoelectric ceramics 1 fill transparent fluid material, circular piezoelectricity pottery as adjustable fluid chamber 4
1 axial length of porcelain be it is automatically controlled adjustable, when light beam is passed through along ceramic axis direction, light path in this direction is adjustable, by
This can form adjustable fluid column, and the light path is equal to length multiplied by refractive index.1 upper end of upper cover plate 2 and circular piezoelectric ceramics
Certain gap is arranged in face, and fixed by the spring 5 of circular 1 outer wall of piezoelectric ceramics winding, and upper cover plate 2 is made to constitute free end
Face, while transparent fluid material being sealed in adjustable fluid chamber 4 by surface tension effects, being formed has " seal face+phase
The structure of position adjustable fluid column+free end face ".Upper cover plate 2 and lower cover slip 3 respectively as light beam input/output terminal, along adjustable
The light path of 4 Propagation light beam of fluid cavity can be with the automatically controlled adjusting of adjustable fluid column length in circular piezoelectric ceramics 1, in annulus
Shape piezoelectric ceramics 1, which applies voltage, makes its length on optical direction control and change with voltage, drives adjustable fluid chamber 4
Light path or phase of the interior transparent fluid on optical direction change, and reach beam phase control purpose.It is set in annular shape
5 one side of spring of 1 outer surface of piezoelectric ceramics, which makes upper cover plate 2 be fixed on 5 end face of spring, prevents upper cover emaciated face from falling, and on the other hand makes
The 1 upper surface gap Jian You of upper cover plate 2 and circular piezoelectric ceramics, the distance between upper cover plate 2 and circular piezoelectric ceramics 1 have
Certain free extension amount.Upper cover plate 2 and circular 1 end surfaces of piezoelectric ceramics are 0.1-3mm.According to wanting for size of devices
It asks, it is smaller or bigger than 3mm to be spaced the ratio 0.1mm that can also be arranged.
Circular piezoelectric ceramics 1 selects ring-shaped piezo ceramic to stack actuator.The automatically controlled adjustment length of circular piezoelectric ceramics 1
Range is up to 10 μm or more, and for control accuracy up to 1nm, adjustable fluid chamber 4 is interior to be filled with the transparent fluid that refractive index is n, according to
Light path is equal to the formula of adjustable fluid column length * refractive index n, and light path adjustable extent is also greater than 10 μm, for visible light, wavelength X
0.55 μm is taken, it can thus be concluded that (light path is equal to the light path of the utility model) adjustable range is about 20 λ or more, and is adjusted
Precision is applicable to most of phase adjusted occasion less than 0.01 λ.Ring-shaped piezo ceramic stacks actuator displacement resolution ratio
Height, response is fast, deformation is big, and manufacturing process is simply mature, can pass through mold injection processing method and realize large-scale production；It is general next
Say that transparent liquid medium need cannot be conductive, non-corrosive, transparency is good, and liquid viscosity is moderate, can choose optical fibre refractivity
Transparent fluid medium is used as with liquid, matching cream, methyl-silicone oil 200Cst, methyl-silicone oil 500Cst etc..Upper and lower cover plate can be selected
The k9 glass that thickness is very thin, translucency is good is made, and spring 5 can choose the moderate precision spring of coefficient of elasticity, compression bullet
Spring, rubber spring, stainless steel spring etc..The inside and outside wall of circular piezoelectric ceramics 1 is coated with 10 μm of grade Parylene insulating layers.
Claims (3)
1. a kind of optical phase tuner based on piezoelectric ceramic technology, which is characterized in that including circular piezoelectric ceramics (1),
It is separately positioned on the upper cover plate (2) at circular piezoelectric ceramics (1) both ends and lower cover slip (3), is filled in circular piezoelectric ceramics (1)
The transparent fluid material of throughhole portions, the spring (5) for connecting upper cover plate (2) and circular piezoelectric ceramics (1)；
The lower cover slip (3) is connect by viscose glue with circular piezoelectric ceramics (1) lower end surface, and the upper cover plate (2) is located at
The top of circular piezoelectric ceramics (1), the spring (5) are set in the outer surface of circular piezoelectric ceramics (1), spring (5)
One end connect with circular piezoelectric ceramics (1), the other end is connect with upper cover plate (2), and spring (5) is used to connect upper cover plate (2)
With circular piezoelectric ceramics (1), and be used to support upper cover plate (2), upper cover plate (2) and circular piezoelectric ceramics (1) upper surface it
Between there are gaps.
2. a kind of optical phase tuner based on piezoelectric ceramic technology according to claim 1, which is characterized in that described
Circular piezoelectric ceramics (1) inside and outside of the main body wall be coated with insulating layer.
3. a kind of optical phase tuner based on piezoelectric ceramic technology according to claim 1, which is characterized in that upper cover
Piece (2) and circular piezoelectric ceramics (1) upper end face interval are 0.1-3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920634508.5U CN209674103U (en) | 2019-05-06 | 2019-05-06 | A kind of optical phase tuner based on piezoelectric ceramic technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920634508.5U CN209674103U (en) | 2019-05-06 | 2019-05-06 | A kind of optical phase tuner based on piezoelectric ceramic technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209674103U true CN209674103U (en) | 2019-11-22 |
Family
ID=68574821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920634508.5U Expired - Fee Related CN209674103U (en) | 2019-05-06 | 2019-05-06 | A kind of optical phase tuner based on piezoelectric ceramic technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209674103U (en) |
-
2019
- 2019-05-06 CN CN201920634508.5U patent/CN209674103U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20110038028A1 (en) | Optical Imaging Lens systems and components | |
| US7920330B2 (en) | Tunable optical active elements | |
| EP2478404B1 (en) | Actuator for moving a micro mechanical element | |
| US8605374B2 (en) | High speed piezoelectric optical system with tunable focal length | |
| US9250367B2 (en) | Fluidic variable focal length optical lens and method for manufacturing the same | |
| CN107690597B (en) | Optical device with variable aperture | |
| CN106062586B (en) | Optical device with focal length variations | |
| CN110045495B (en) | Optical phase modulation method based on liquid lens | |
| CN209674103U (en) | A kind of optical phase tuner based on piezoelectric ceramic technology | |
| Patra et al. | Membrane-less variable focus liquid lens with manual actuation | |
| CN102799013A (en) | Polarization-irrelevant tunable Fabry-Perot filter | |
| CN1839332A (en) | Tunable fabry-perot filter | |
| CN108319013B (en) | Beam phase modulation and direction adjustment device and application method thereof | |
| CN109459851A (en) | A kind of design method of the bulk structures such as non-of dynamic calibration liquid lens spherical aberration | |
| CN102798998A (en) | Single-mode continuous tunable optical filter | |
| US7780300B2 (en) | Variable focus deformable surface using rotation means for rotating the upper and lower material layers about a center axis | |
| Gowda et al. | Integrated sensor system to control the temperature effects and the hysteresis on adaptive fluid-membrane piezoelectric lenses | |
| Draheim et al. | Fluidic zoom lens system using two single chamber adaptive lenses with integrated actuation | |
| CN210534474U (en) | Optical phase modulator with electrically-controlled adjustable length | |
| CN110308551B (en) | Electrically controlled liquid optical phase modulator | |
| Wapler et al. | Ultra-fast and compact varifocal lens | |
| CN111830611A (en) | Line wall type multi-electrode control electrowetting driving liquid lens | |
| Wang et al. | Polydimethylsiloxane as dielectric and hydrophobic material in electro-wetting liquid lens | |
| Bettaswamy et al. | A novel concept for piezoelectric actuation of tunable silicone membrane lenses | |
| CN210534435U (en) | Optical phase modulator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191122 |