CN106501948A - A kind of dual channel optical rotary coupler - Google Patents
A kind of dual channel optical rotary coupler Download PDFInfo
- Publication number
- CN106501948A CN106501948A CN201611241579.6A CN201611241579A CN106501948A CN 106501948 A CN106501948 A CN 106501948A CN 201611241579 A CN201611241579 A CN 201611241579A CN 106501948 A CN106501948 A CN 106501948A
- Authority
- CN
- China
- Prior art keywords
- single mode
- optical fiber
- convergent lens
- collimated light
- rotary shaft
- 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.)
- Granted
Links
Classifications
-
- 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
- G02B27/10—Beam splitting or combining systems
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00163—Optical arrangements
- A61B1/00172—Optical arrangements with means for scanning
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
- G02B23/2407—Optical details
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
- G02B23/26—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes using light guides
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/10—Scanning systems
- G02B26/103—Scanning systems having movable or deformable optical fibres, light guides or waveguides as scanning elements
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Astronomy & Astrophysics (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Radiology & Medical Imaging (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biophysics (AREA)
- Heart & Thoracic Surgery (AREA)
- Pathology (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The present invention discloses a kind of dual channel optical rotary coupler, the rotor that the coupler includes rotary shaft and rotates around rotary shaft, the coupler has relative to the static stationary end of world coordinate system, the movable end rotated around rotary shaft relative to world coordinate system, the coupler includes the first optical fiber and the second optical fiber in stationary end, the 3rd optical fiber being located on movable end and the 4th optical fiber, the coupler also include the first static collimation lens of relative rotation axi, the second collimation lens, bundling device, the first convergent lens, the second convergent lens；The beam splitter that rotates around rotary shaft with rotor, the 3rd collimation lens, speculum, the 3rd convergent lens, the 4th convergent lens.The coupler of the present invention, overcomes the deficiencies in the prior art, it is achieved that two-way single mode optical signal being capable of rotatable communication simultaneously in the same coupler.
Description
Technical field
The present invention relates to optical technical field, and in particular to a kind of dual channel optical rotary coupler.
Background technology
Optical rotary coupler or optical rotary coupler are that one kind is widely used in industry and medical optical fiber laser is swept
Retouch the device of endoscope.The major function of optical rotary coupler is to realize the single mode coupling between two sections of optical fiber, wherein one section
Optical fiber transfixion, in addition one section of optical fiber is around optical axis rotation at a high speed.The single-mode fiber of rotation can realize laser scanning at a high speed
Circular scanning in the middle of endoscope.
And dual channel optical rotary coupler refers to that actionless stationary end has two single-mode fibers 1 and 2, referring to Fig. 1
Shown, every single-mode fiber transmits an independent single mode optical signal；The movable end of rotation also has two single-mode fibers 3 and 4, and
And single-mode fiber 3 and 4 is rotated around same rotary shaft at a high speed；Require in the middle of rotary course, 3 continuous reception single mode of single-mode optics
The optical signal that optical fiber 1 sends, single-mode optics 4 are continuous to receive the optical signal that single-mode fiber 2 sends, and passage 1-3 and passage 2-4 light
Power coupling efficiency be all optimum (>80%).As two optical fiber of movable end cannot be put on the rotary shaft simultaneously, dual channel optical
Rotatable communication becomes a difficult problem.
Content of the invention
The purpose of the present invention is to overcome deficiency of the prior art, there is provided a kind of simple structure, it is achieved that in same coupling
Two-way single mode optical signal in device can be while the dual channel optical rotary coupler of rotatable communication.
For reaching above-mentioned purpose, the technical solution used in the present invention is：A kind of dual channel optical rotary coupler, the coupling
Clutch includes rotary shaft and the rotor around rotary shaft rotation, and the coupler has static quiet of relative world coordinate system
Not-go-end, the movable end rotated around the rotary shaft relative to world coordinate system, the coupler are included in the stationary end
First optical fiber and the second optical fiber, the 3rd optical fiber and the 4th optical fiber on the movable end, the coupler also include：
First collimation lens, positioned at going out on light path for first optical fiber, first optical fiber is through first collimation lens
It is collimated afterwards and forms the first single mode collimated light；
Second collimation lens, positioned at going out on light path for second optical fiber, second optical fiber is through second collimation lens
It is collimated afterwards and forms the second single mode collimated light；
First convergent lens, positioned at going out on light path for the first single mode collimated light, for by the first single mode collimated light
Focus on；
Bundling device, positioned at going out on light path for the second single mode collimated light, is collimated by first single mode on the bundling device
The first reflectance coating is plated with the focus spot formed after first convergent lens focusing by light；
The second single mode collimated light is reflected through described first with the first single mode collimated light through the part of the bundling device
Part after film reflection forms coaxial light beam；
Second convergent lens, positioned at going out on light path for the coaxial light beam, for by described second in the coaxial light beam
Single mode collimated light is focused on；
Beam splitter, for the coaxial light beam to be split, by described second in the coaxial light beam on the beam splitter
The second reflectance coating is plated with the focus spot that single mode collimated light is formed after second convergent lens focusing；
After the first single mode collimated light in the coaxial light beam is through second convergent lens, through the portion of the beam splitter
The 3rd convergent lens of lease making is coupled into the 3rd optical fiber after focusing on；The second single mode collimated light in the coaxial light beam is through institute
After stating the second convergent lens, the beam splitter, sequentially passed through by the part of the second reflectance coating reflection on the beam splitter
The 4th optical fiber is coupled into after 3rd collimation lens, speculum, the 4th convergent lens；
Wherein, the first described collimation lens, the second collimation lens, bundling device, the first convergent lens, the second convergent lens are relative
The rotary shaft is static；Described beam splitter, the 3rd collimation lens, speculum, the 3rd convergent lens, the 4th convergent lens are with institute
State rotor to rotate around the rotary shaft.
Preferably, between the second single mode collimated light and the first single mode collimated light it is in 90 ° of angles；The bundling device institute
Face and the rotary shaft direction of axis line is in 45 ° of angles and the rotary shaft is worn by described along Pivot Point Center line direction
The center of bundling device；Beam splitter place face is in 135 ° of angles and the rotary shaft edge with the direction of axis line of the rotary shaft
Pivot Point Center line direction wears the center by the beam splitter.
It is further preferred that first reflectance coating is located at the center of the bundling device, and the face of first reflectance coating
It is corresponding that product focuses on the focus spot area to be formed with the first single mode collimated light by first convergent lens.
It is further preferred that second reflectance coating is located at the center of the beam splitter, and the face of second reflectance coating
It is corresponding that product focuses on the focus spot area to be formed with the second single mode collimated light by second convergent lens.
It is further preferred that the bundling device is transparent optical flat or window.
It is further preferred that the beam splitter is transparent optical flat or window.
Due to the utilization of above-mentioned technical proposal, the present invention has following advantages compared with prior art：The bilateral of the present invention
Road optical rotary coupler, the coupler is by adopting bundling device, beam splitter and multiple lens, it is achieved that two-way single mode optical signal
Can be simultaneously around rotary shaft rotatable communication, there is provided a kind of device of coupling binary channels optical signal, its simple structure, operation side
Just, problems of the prior art are effectively overcomed.
Description of the drawings
Structural representation of the accompanying drawing 1 for dual channel optical rotary coupler of the present invention；
Wherein：1st, the first optical fiber；2nd, the second optical fiber；3rd, the 3rd optical fiber；4th, the 4th optical fiber；5th, the first single mode collimated light；6th, second
Single mode collimated light；
10th, rotary shaft；11st, rotor；12nd, the first collimation lens；13rd, the second collimation lens；14th, the first convergent lens；15th, beam is closed
Device；151st, the first reflectance coating；16th, the second convergent lens；17th, beam splitter；171st, the second reflectance coating；18th, the 3rd collimation lens；
19th, speculum；20th, the 3rd convergent lens；21st, the 4th convergent lens.
Specific embodiment
Come below in conjunction with the accompanying drawings to be further elaborated technical scheme.
Shown in Figure 1, a kind of dual channel optical rotary coupler, the coupler include rotary shaft 10 and around the rotation
Axle 10 rotation rotor 11, the coupler have relative to the static stationary end of world coordinate system, relative to world coordinate system around rotation
The movable end of the rotation of axle 10, the coupler includes the first optical fiber 1 and the second optical fiber 2 in stationary end, on movable end
The 3rd optical fiber 3 and the 4th optical fiber 4.3rd optical fiber 3 is rotated around rotary shaft 10 with arbitrary speed with the 4th optical fiber 4, and this
Three optical fiber 3 and the 4th optical fiber 4 are between the two without relative motion.
Here, the coupler also includes the first static collimation lens 12 of relative rotation axi 10, the second collimation lens 13, closes
Beam device 15, the first convergent lens 14, the second convergent lens 16；Accurate around the beam splitter the 17, the 3rd that rotary shaft 10 rotates with rotor 11
Straight lens 18, speculum 19, the 3rd convergent lens 20, the 4th convergent lens 21.
Specifically, first collimation lens 12 and the second collimation lens 13 are located at the first optical fiber 1 and the second optical fiber 2 respectively
Go out on light path, first optical fiber 1 is collimated after the first collimation lens 12 and forms the first single mode collimated light 5, second optical fiber 2
It is collimated after the second collimation lens 13 and forms the second single mode collimated light 6.In this example, the first single mode collimated light 5 and second is single
It is in 90 ° of angles between mould collimated light 6.
First convergent lens 14, positioned at going out on light path for the first single mode collimated light 5, for by the first single mode collimated light
5 focus on.
The bundling device 15, positioned at going out on light path for the second single mode collimated light 6, in this example, the 15 place face of bundling device with
During the direction of axis line of rotary shaft 10 is worn by bundling device 15 along Pivot Point Center line direction in 45 ° of angles and rotary shaft 10
The heart.The focus spot formed after being focused on through the first convergent lens 14 by the first single mode collimated light 5 on bundling device 15 is plated with
First reflectance coating 151, in this example, first reflectance coating 151 is located at the center position of bundling device 15, and first reflectance coating
151 area is corresponding with the area of the focus spot that the first single mode collimated light 5 focuses on generation after the first convergent lens 14
（Typically about 100 square microns）.When the second single mode collimated light 6 is through bundling device 15, except the first of 15 center of bundling device
Cannot pass through at reflectance coating 151, remaining can pass through, and the first single mode collimated light 5 is through being reflected by first during bundling device 15
Film 151 reflects.Thus, the second single mode collimated light 6 through bundling device 15 part with the first single mode collimated light 5 through the first reflectance coating
Part after 151 reflections forms coaxial light beam.
Second convergent lens 16 is located at coaxial light beam and goes out on light path, for by the second single module quasi in coaxial light beam
Direct light 6 is focused on.
Beam splitter 17, for coaxial light beam to be split.In this example, the axle of the 17 place face of beam splitter and rotary shaft 10
Heart line direction is in 135 ° of angles and rotary shaft 10 wears the center by beam splitter 17 along Pivot Point Center line direction.The beam splitter 17
On focused on through the second convergent lens 16 by the second single mode collimated light 6 in the coaxial light beam after the focus spot plating that formed
There is the second reflectance coating 171, in this example, second reflectance coating 171 is located at the center position of beam splitter 17, and the second reflectance coating
171 area is corresponding by the focus spot area for focusing on formation after the second convergent lens 16 with the second single mode collimated light 6（One
As about 100 square microns）.
After the first single mode collimated light 5 in coaxial light beam is through the second convergent lens 16, through the part of beam splitter 17
Three convergent lens 20 is coupled into the 3rd optical fiber 3 after focusing on；The second single mode collimated light 6 in coaxial light beam is through the second convergent lens
After 16, by the part that the second reflectance coating 171 on beam splitter 17 reflects sequentially pass through the 3rd collimation lens 18, speculum 19,
The 4th optical fiber 4 is coupled into after four convergent lenses 21.
In this example, the bundling device 15 employs transparent optical flat or window, and the beam splitter 17 also uses transparent
Optical flat or window.
In sum, the coupler in this example overcomes prior art by bundling device 15, beam splitter 17 and multiple lens
Deficiency, it is achieved that two-way single mode optical signal being capable of rotatable communication simultaneously in the same coupler.
Above-described embodiment technology design only to illustrate the invention and feature, its object is to allow person skilled in the art
Scholar will appreciate that present disclosure and implement according to this, can not be limited the scope of the invention with this.All according to the present invention
Equivalence changes or modification that Spirit Essence is made, should all be included within the scope of the present invention.
Claims (6)
1. a kind of dual channel optical rotary coupler, the coupler include rotary shaft and turning around rotary shaft rotation
Son, the coupler have relative to world coordinate system static stationary end, rotate around the rotary shaft relative to world coordinate system
Movable end, it is characterised in that the coupler includes the first optical fiber and the second optical fiber in the stationary end, positioned at described
The 3rd optical fiber and the 4th optical fiber on movable end, the coupler also include：
First collimation lens, positioned at going out on light path for first optical fiber, first optical fiber is through first collimation lens
It is collimated afterwards and forms the first single mode collimated light；
Second collimation lens, positioned at going out on light path for second optical fiber, second optical fiber is through second collimation lens
It is collimated afterwards and forms the second single mode collimated light；
First convergent lens, positioned at going out on light path for the first single mode collimated light, for by the first single mode collimated light
Focus on；
Bundling device, positioned at going out on light path for the second single mode collimated light, is collimated by first single mode on the bundling device
The first reflectance coating is plated with the focus spot formed after first convergent lens focusing by light；
The second single mode collimated light is reflected through described first with the first single mode collimated light through the part of the bundling device
Part after film reflection forms coaxial light beam；
Second convergent lens, positioned at going out on light path for the coaxial light beam, for by described second in the coaxial light beam
Single mode collimated light is focused on；
Beam splitter, for the coaxial light beam to be split, by described second in the coaxial light beam on the beam splitter
The second reflectance coating is plated with the focus spot that single mode collimated light is formed after second convergent lens focusing；
After the first single mode collimated light in the coaxial light beam is through second convergent lens, through the portion of the beam splitter
The 3rd convergent lens of lease making is coupled into the 3rd optical fiber after focusing on；The second single mode collimated light in the coaxial light beam is through institute
After stating the second convergent lens, the beam splitter, sequentially passed through by the part of the second reflectance coating reflection on the beam splitter
The 4th optical fiber is coupled into after 3rd collimation lens, speculum, the 4th convergent lens；
Wherein, the first described collimation lens, the second collimation lens, bundling device, the first convergent lens, the second convergent lens are relative
The rotary shaft is static；Described beam splitter, the 3rd collimation lens, speculum, the 3rd convergent lens, the 4th convergent lens are with institute
State rotor to rotate around the rotary shaft.
2. dual channel optical rotary coupler according to claim 1, it is characterised in that the second single mode collimated light with
It is in 90 ° of angles between the first single mode collimated light；Bundling device place face is pressed from both sides in 45 ° with the direction of axis line of the rotary shaft
The angle and rotary shaft wears the center by the bundling device along Pivot Point Center line direction；Beam splitter place face with described
The direction of axis line of rotary shaft is in 135 ° of angles and the rotary shaft is worn by the beam splitter along Pivot Point Center line direction
Center.
3. dual channel optical rotary coupler according to claim 2, it is characterised in that first reflectance coating is located at institute
The center of bundling device is stated, and the area of first reflectance coating passes through first convergent lens with the first single mode collimated light
Focus on the focus spot area for being formed corresponding.
4. dual channel optical rotary coupler according to claim 2, it is characterised in that second reflectance coating is located at institute
The center of beam splitter is stated, and the area of second reflectance coating passes through second convergent lens with the second single mode collimated light
Focus on the focus spot area for being formed corresponding.
5. the dual channel optical rotary coupler according to Claims 1-4 any one claim, it is characterised in that institute
It is transparent optical flat or window to state bundling device.
6. the dual channel optical rotary coupler according to Claims 1-4 any one claim, it is characterised in that institute
It is transparent optical flat or window to state beam splitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611241579.6A CN106501948B (en) | 2016-12-29 | 2016-12-29 | Double-channel optical rotary coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611241579.6A CN106501948B (en) | 2016-12-29 | 2016-12-29 | Double-channel optical rotary coupler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106501948A true CN106501948A (en) | 2017-03-15 |
| CN106501948B CN106501948B (en) | 2022-07-22 |
Family
ID=58334645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611241579.6A Active CN106501948B (en) | 2016-12-29 | 2016-12-29 | Double-channel optical rotary coupler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106501948B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110575142A (en) * | 2019-09-16 | 2019-12-17 | 南京波斯泰克光电科技有限公司 | Multi-beam optical coherence tomography instrument of single spectrometer |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1156751A (en) * | 1997-08-28 | 1999-03-02 | Olympus Optical Co Ltd | Endoscope |
| CN1289239A (en) * | 1998-01-26 | 2001-03-28 | 麻省理工学院 | Fluorescence imaging endoscope |
| AU2003232903A1 (en) * | 2002-05-17 | 2003-12-02 | Femtolasers Produktions Gmbh | Short-pulse laser device with a preferably passive mode coupling and a multiple reflection telescope therefor |
| CN1694644A (en) * | 2002-06-28 | 2005-11-09 | Oti眼技术股份有限公司 | Optical mapping apparatus with adjustable depth resolution and multiple functionality |
| CN200982952Y (en) * | 2006-12-05 | 2007-11-28 | 华南师范大学 | Dual-channel optical fiber refractive index sensor |
| CN101270975A (en) * | 2008-05-16 | 2008-09-24 | 湖南大学 | Combined interference device for aspheric surface measurement |
| CN101477198A (en) * | 2009-01-14 | 2009-07-08 | 中国科学院上海光学精密机械研究所 | Universal optical antenna of synthetic aperture laser imaging radar |
| JP2009153862A (en) * | 2007-12-27 | 2009-07-16 | Olympus Medical Systems Corp | Endoscope washing and disinfecting apparatus |
| US20120271111A1 (en) * | 2009-11-02 | 2012-10-25 | Olympus Corporation | Beam splitter apparatus, light source apparatus, and scanning observation apparatus |
| US20140303504A1 (en) * | 2011-10-28 | 2014-10-09 | Massachusetts Eye & Ear Infirmary | Tissue and cellular imaging |
| CN206282038U (en) * | 2016-12-29 | 2017-06-27 | 苏州塞罗尔医学影像科技有限公司 | A kind of dual channel optical rotary coupler |
-
2016
- 2016-12-29 CN CN201611241579.6A patent/CN106501948B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1156751A (en) * | 1997-08-28 | 1999-03-02 | Olympus Optical Co Ltd | Endoscope |
| CN1289239A (en) * | 1998-01-26 | 2001-03-28 | 麻省理工学院 | Fluorescence imaging endoscope |
| AU2003232903A1 (en) * | 2002-05-17 | 2003-12-02 | Femtolasers Produktions Gmbh | Short-pulse laser device with a preferably passive mode coupling and a multiple reflection telescope therefor |
| CN1694644A (en) * | 2002-06-28 | 2005-11-09 | Oti眼技术股份有限公司 | Optical mapping apparatus with adjustable depth resolution and multiple functionality |
| CN200982952Y (en) * | 2006-12-05 | 2007-11-28 | 华南师范大学 | Dual-channel optical fiber refractive index sensor |
| JP2009153862A (en) * | 2007-12-27 | 2009-07-16 | Olympus Medical Systems Corp | Endoscope washing and disinfecting apparatus |
| CN101270975A (en) * | 2008-05-16 | 2008-09-24 | 湖南大学 | Combined interference device for aspheric surface measurement |
| CN101477198A (en) * | 2009-01-14 | 2009-07-08 | 中国科学院上海光学精密机械研究所 | Universal optical antenna of synthetic aperture laser imaging radar |
| US20120271111A1 (en) * | 2009-11-02 | 2012-10-25 | Olympus Corporation | Beam splitter apparatus, light source apparatus, and scanning observation apparatus |
| US20140303504A1 (en) * | 2011-10-28 | 2014-10-09 | Massachusetts Eye & Ear Infirmary | Tissue and cellular imaging |
| CN206282038U (en) * | 2016-12-29 | 2017-06-27 | 苏州塞罗尔医学影像科技有限公司 | A kind of dual channel optical rotary coupler |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110575142A (en) * | 2019-09-16 | 2019-12-17 | 南京波斯泰克光电科技有限公司 | Multi-beam optical coherence tomography instrument of single spectrometer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106501948B (en) | 2022-07-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2013646B1 (en) | Optical rotary joints | |
| CN102662236B (en) | Scanning device realizing unidirectional laser scanning through double-faced vibrating mirror | |
| FR2522831A1 (en) | ROTARY OPTICAL COUPLER FOR MULTIPLE CHANNELS | |
| CN101788699B (en) | Hollow fiber optic rotary joint | |
| US9829634B2 (en) | Bundled optical fiber probe | |
| CN105723262B (en) | The branching method of the light of photo-coupler and the utilization photo-coupler | |
| US20120300277A1 (en) | Laser speckle reduction for imaging systems | |
| CN204430566U (en) | A kind of double light beam laser processing head | |
| CN206282038U (en) | A kind of dual channel optical rotary coupler | |
| CN106501948A (en) | A kind of dual channel optical rotary coupler | |
| JPS59105608A (en) | Rotary joiner for optical fiber | |
| CN106735887A (en) | A kind of single galvanometer total-reflection type displacement focusing 3D scanning optics | |
| CN106094226B (en) | One kind is based on two beam splitter prisms and wedge-shaped mirrors combinative optical system | |
| CN102236267B (en) | Laser interference lithographic system | |
| JP2594470B2 (en) | Achromatic scanning device | |
| CN110036320A (en) | Fiber coupling device | |
| US7936954B2 (en) | Optical rotary joint with high return loss | |
| CN103472539A (en) | Hollow optical slip ring and optical signal transmission method thereof | |
| CN205817077U (en) | One is based on two beam splitter prisms and scanning galvanometer combinative optical system | |
| CN105116555B (en) | A kind of uniform line hot spot light path system based on multifaceted prism superelevation uniform speed scanning | |
| CN112192021A (en) | Laser scanning device | |
| CN206710699U (en) | A kind of light modulating device | |
| CN106980156A (en) | A kind of faraday rotation mirror unrelated with wavelength and temperature | |
| CN113126107A (en) | Scanning laser radar | |
| CN218976008U (en) | Laser reflection device and laser |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | 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 |