CN110233669A - Using the endoscopic system of illuminating light communication - Google Patents
Using the endoscopic system of illuminating light communication Download PDFInfo
- Publication number
- CN110233669A CN110233669A CN201910674034.1A CN201910674034A CN110233669A CN 110233669 A CN110233669 A CN 110233669A CN 201910674034 A CN201910674034 A CN 201910674034A CN 110233669 A CN110233669 A CN 110233669A
- Authority
- CN
- China
- Prior art keywords
- signal
- module
- mirror body
- light
- host computer
- 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
Classifications
-
- 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
- A61B1/00002—Operational features of endoscopes
- A61B1/00011—Operational features of endoscopes characterised by signal transmission
- A61B1/00013—Operational features of endoscopes characterised by signal transmission using optical means
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/114—Indoor or close-range type systems
- H04B10/116—Visible light communication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2589—Bidirectional transmission
- H04B10/25891—Transmission components
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/555—Constructional details for picking-up images in sites, inaccessible due to their dimensions or hazardous conditions, e.g. endoscopes or borescopes
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Multimedia (AREA)
- Surgery (AREA)
- Pathology (AREA)
- Molecular Biology (AREA)
- Radiology & Medical Imaging (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Optics & Photonics (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Biophysics (AREA)
- Endoscopes (AREA)
Abstract
The invention proposes a kind of endoscopic systems using illuminating light communication, including endoscope host and mirror body, the host computer control module of the endoscope host connects the first modulating and demodulating signal module, the first modulating and demodulating signal module is loaded into lighting unit driving circuit after being modulated to the host computer side signal, which drives lighting unit to send the optical signal for carrying host computer side signal；Optical element is provided in mirror body, the first photoelectric conversion module and reflective light modulator for receiving the reflected light of optical element are additionally provided in the mirror body, the first photoelectric conversion module output end is connected in the intracorporal second signal modulation /demodulation module of mirror, second signal modulation /demodulation module is connect with mirror body control module, Xiang Jingti control module send it is demodulated after host computer side signal.The access for applying the endoscopic system of illuminating light communication to be used as its signal to transmit simultaneously its illumination pathways, realizes the compact in size of the interconnecting piece of mirror body and endoscope host.
Description
Technical field
The present invention relates to medical instruments fields, and in particular to a kind of endoscopic system using illuminating light communication.
Background technique
For widely applied endoscopic system in the medical field, it is mirror that endoscope mirror body, which generally requires cold light source device,
Body provides illumination light, and the data transmission that endoscope mirror body takes head end camera is cleaned for convenience to processor device
Interference free performance is sterilized and is promoted, now with the technology using laser transmission image data.
Summary of the invention
In order to overcome above-mentioned defect existing in the prior art, illuminating light communication is applied the object of the present invention is to provide a kind of
Endoscopic system.
In order to realize above-mentioned purpose of the invention, the present invention provides a kind of endoscopic system using illuminating light communication,
Including endoscope host and mirror body, the host computer control module of the endoscope host connects the first modulating and demodulating signal module, to
The first modulating and demodulating signal module sends host computer side signal, which carries out the host computer side signal
Lighting unit driving circuit is loaded into after modulation, which drives lighting unit to send and carry host computer side signal
Optical signal；
Optical element is provided in the mirror body, the optical signal is reflected through the optical element, in the mirror body also
It is provided with the first photoelectric conversion module and reflective light modulator of the reflected light for receiving the optical element, first photoelectric conversion
Module output end is connected in the intracorporal second signal modulation /demodulation module of mirror, the second signal modulation /demodulation module and mirror
Body control module connection, Xiang Jingti control module send it is demodulated after host computer side signal；
The mirror body control module sends mirror body side signal, the second signal modulatedemodulate to second signal modulation /demodulation module
Mode transfer block is connect with the reflective light modulator, and the second signal modulation /demodulation module is sent out after being modulated to mirror body side signal
The reflective light modulator is given, which carries rear send in the signal modulation to reflected light of modulated mirror body side
The reflected light signal of mirror body side signal；
The second photoelectricity for be received and converted to electric signal to the reflected light signal is equipped in the endoscope host to connect
Module is received, which connect with the first modulating and demodulating signal module, which will
Mirror body side signal after demodulation is sent to host computer control module.
The endoscopic system carries out signal transmission using illumination light, and structure is simple, while effectively signal can also be overcome to transmit
In electromagnetic interference problem.
Preferably, the optical signal is transmitted through the optical element, and transmitted light provides illumination for the mirror body.
The beneficial effects of the present invention are: the endoscopic system using illuminating light communication regard its illumination pathways as it simultaneously
The access of signal transmission carries out signal transmission using illumination light, reduces individual signal transmission passage, realizes mirror body and interior
The interconnecting piece of sight glass host it is compact in size.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the principle of the present invention block diagram；
Fig. 2 is signal transmission path block diagram；
Fig. 3 is that control signal, the mirror body side signal that host computer side signal is control mirror body photographing module are viewdata signal
When system principle diagram；
Fig. 4 is light channel structure figure；
Fig. 5 is the light path schematic diagram of light splitting piece and reflective light modulator；
Fig. 6 is the structural schematic diagram of reflective light modulator.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the description of the present invention, unless otherwise specified and limited, it should be noted that term " installation ", " connected ",
" connection " shall be understood in a broad sense, for example, it may be mechanical connection or electrical connection, the connection being also possible to inside two elements can
, can also indirectly connected through an intermediary, for the ordinary skill in the art to be to be connected directly, it can basis
Concrete condition understands the concrete meaning of above-mentioned term.
As shown in Figure 1, the present invention provides a kind of endoscopic system using illuminating light communication, including endoscope host and
The host computer control module of mirror body, endoscope host connects the first modulating and demodulating signal module, to the first modulating and demodulating signal mould
Block sends host computer side signal, and the first modulating and demodulating signal module is connect with the first modulus/D/A converter module, the first modulus/number
Mould conversion module output end is connect with lighting unit driving circuit input terminal, and host computer side signal is through the first modulating and demodulating signal module
It is loaded into lighting unit driving circuit after carrying out digital-to-analogue conversion by the first modulus/D/A converter module after modulation, the illumination
Cell driving circuit drives lighting unit to send the optical signal for carrying host computer side signal；Optical element, light letter are provided in mirror body
Number reflected through the optical element, be additionally provided in mirror body the reflected light for receiving optical element the first photoelectric conversion module and
Reflective light modulator, first photoelectric conversion module connect the second modulus/D/A converter module, and the first photoelectric conversion unit is to it
The reflected light received carries out photoelectric conversion, then carries out analog-to-digital conversion, the second mould by the second modulus/D/A converter module again
Number/D/A converter module is connect with the intracorporal second signal modulation /demodulation module of mirror is set to, second signal modulation /demodulation module
Connect with mirror body control module, Xiang Jingti control module send it is demodulated after host computer side signal.
Mirror body control module sends mirror body side signal, the second signal modulatedemodulate mode transfer to second signal modulation /demodulation module
Block is connect with the second modulus/D/A converter module, and the second modulus/D/A converter module is connect with reflective light modulator, mirror body side
Signal carries out digital-to-analogue conversion by the second modulus/D/A converter module after being modulated by second signal modulation /demodulation module and retransmits
The reflective light modulator is given, which carries mirror for rear send in the signal modulation to reflected light of modulated mirror body side
The reflected light signal of side signal；It is equipped in endoscope host and be received and converted to the of electric signal to the reflected light signal
Two opto-electronic receiver modules, the second opto-electronic receiver module connect the first modulus/D/A converter module；First modulus/digital-to-analogue turns
Mold changing block is connect with the first modulating and demodulating signal module, which sends out the mirror body side signal after demodulation
Give host computer control module.
Wherein, reflective light modulator includes electro-optic phase modulator and prism of corner cube, and electro-optic phase modulator and second are believed
The connection of number modulation /demodulation module, reflected light, which first passes through electro-optic phase modulator and enters in prism of corner cube, to be reflected, and is reflected into electricity
It is projected after optical phase modulator.
The preferred embodiment of the present embodiment, lighting unit front are equipped with Unidirectional transparent spectroscope, and the second opto-electronic receiver module is set
It is placed on the spectroscopical smooth reflection direction of Unidirectional transparent；Reflective light modulator, the first photoelectric conversion module are set to optical element
Light reflection direction on.
As for the illumination of mirror body, it can individually draw illumination light all the way and for mirror body provide illumination, the present embodiment can also be used
Another preferred embodiment is realized: the optical signal that the optical element can also send endoscope host transmit, and transmitted light is mirror
Body provides illumination, and optical element here is preferably but not limited to as light splitting piece.
In specific implementation, mirror body side signal includes picture signal and/or mirror body signal；The host computer side signal includes at least
A kind of control signal.
It is below the control signal for controlling mirror body photographing module, mirror body side signal as viewdata signal using host computer side signal
For this is explained in detail using the endoscopic system of illuminating light communication.
As shown in Figures 2 to 6, in the present embodiment, lighting unit is preferably but not limited to using LED light emitting diode, and first
Photoelectric conversion module and the second photoelectric conversion module are preferably but not limited to as photodetector, the first modulating and demodulating signal module
It is preferably but not limited to realize using FPGA module with second signal modulation /demodulation module, such as the model of XILINX company
The fpga chip of XC7A50T-CSG325.
The light guide section of the mirror body 20 of endoscope is connect with endoscope host 30, and image processing unit controls signal is transmitted to interior
The host computer control module of sight glass host 30, which, which sends control signals to, carries out four phases in the first FPGA module
Relative displacement modulation, after the control signal is converted to analog signal by digital signal by the first modulus/D/A converter module
It is loaded into LED drive circuit, then LED302 luminous intensity is controlled by LED drive circuit, belt controling signal is taken in LED302 sending
Illumination light a, enters the optical fiber 205 in mirror body 20 after Unidirectional transparent is divided eyeglass 301, and Unidirectional transparent is divided eyeglass 301
Effect is light can be divided on the right side of eyeglass 301 from Unidirectional transparent to be transmitted to left side, and it is left to be divided eyeglass 301 from Unidirectional transparent
The light that right side is injected in side will be reflected, and light is transferred at the light splitting piece 202 in mirror body 20 via optical fiber 205, light splitting piece 202
Function is that light a part can be made to transmit, and a part reflection, transmitted light b is transferred to the mirror body head end of mirror body 20 as illumination light
Illumination light is provided for Image Acquisition at 201, reflected light c is irradiated on reflective light modulator 203 and the first photodetector 204
On, the first photodetector 204 carries out being processed into electric signal after receiving reflected light, is then sent to the first signal processing mould
Block carries out signal processing, is then forwarded to the second modulus/D/A converter module and carries out analog-to-digital conversion, then is carried out by the second FPGA module
Four phase relative displacements demodulation, the control signal after demodulation are transmitted to mirror body control module, and mirror body control module believes received control
It number is sent to mirror body photographing module, mirror body photographing module executes corresponding control action, and so far, which transfers
At.
When reflected light c is irradiated on reflective light modulator 203, since reflective light modulator 203 includes electric light phase-modulation
Device 2031 and prism of corner cube 2032, electro-optic phase modulator 2031 belong to the optical modulator of transmission-type, can be by changing electric light phase
The light transmittance of position modulator 2031, realizes the modulation of intensity of reflected light.
Mirror body photographing module will be sent to mirror body control module after image information collecting, mirror body control module again believes image
It number is sent to the second FPGA module and carries out shift keying modulation, then modulated picture signal is sent to the second modulus/digital-to-analogue
Conversion module carries out digital-to-analogue conversion, retransmits to second signal processing unit and carries out signal processing, then will treated image
Signal is sent to reflective light modulator 203, and control reflective light modulator 203 is modulated the reflected light c received, after modulation
The reflected light signal d with image information part light is reflected into optical fiber 205, reflected light signal d via light splitting piece 202 again
It injects to Unidirectional transparent light splitting eyeglass 301 to be reflected on the second photodetector 303, the second photodetector 303 is received
To reflected light signal be converted to and be transmitted to third signal processing module after electric signal and carry out signal processing, then carry out modulus again and turn
It changes, is sent to the first FPGA module and carries out frequency shift-keying demodulation, the picture signal obtained after demodulation enters endoscope host 30
Host computer control module submits to image processing unit, exports image after being handled by image processing unit over the display, so far, figure
It is completed as signal is transferred to image processing unit.
When mirror body side signal includes multiple types signal, as simultaneously including in above-mentioned viewdata signal, mirror body 20
In the mirror body information (can be id information, type information etc.) of the storages such as non-volatile data memory part such as ferroelectricity, mirror body 20
Transducing signal (such as the sensor of the generations such as temperature sensor, photosensitive sensor of mirror body head end that generates of various sensors
Signal)；And/or when host computer side signal includes two or more control signal, signal sending end can be passed through
FPGA module is handled various signals by protocol packing, and the same of multiple types signal can be realized by protocol analysis again in signal receiving end
When transmit.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiment or examples in can be combined in any suitable manner.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is defined by the claims and their equivalents.
Claims (8)
1. a kind of endoscopic system using illuminating light communication, including endoscope host and mirror body, which is characterized in that peeped in described
The host computer control module of mirror host connects the first modulating and demodulating signal module, sends host to the first modulating and demodulating signal module
Side signal, the first modulating and demodulating signal module are loaded into lighting unit driving circuit after being modulated to the host computer side signal,
The lighting unit driving circuit drives lighting unit to send the optical signal for carrying host computer side signal；
Optical element is provided in the mirror body, the optical signal is reflected through the optical element, is also set up in the mirror body
There are the first photoelectric conversion module and reflective light modulator of the reflected light for receiving the optical element, first photoelectric conversion module
Output end is connected in the intracorporal second signal modulation /demodulation module of mirror, the second signal modulation /demodulation module and mirror body control
Molding block connection, Xiang Jingti control module send it is demodulated after host computer side signal；
The mirror body control module sends mirror body side signal, the second signal modulatedemodulate mode transfer to second signal modulation /demodulation module
Block is connect with the reflective light modulator, and the second signal modulation /demodulation module is sent to after being modulated to mirror body side signal
Rear send in the signal modulation to reflected light of modulated mirror body side is carried mirror body by the reflective light modulator, the reflective light modulator
The reflected light signal of side signal；
It is equipped in the endoscope host and the second opto-electronic receiver mould for being received and converted to electric signal is carried out to the reflected light signal
Block, the second opto-electronic receiver module are connect with the first modulating and demodulating signal module, which will demodulate
Mirror body side signal afterwards is sent to host computer control module.
2. the endoscopic system according to claim 1 using illuminating light communication, which is characterized in that the optical signal is through institute
It states optical element to be transmitted, transmitted light provides illumination for the mirror body.
3. the endoscopic system according to claim 1 using illuminating light communication, which is characterized in that the reflection light modulation
Device includes electro-optic phase modulator and prism of corner cube, and the electro-optic phase modulator and the second signal modulation /demodulation module connect
It connects, reflected light, which first passes through the electro-optic phase modulator and enters in prism of corner cube, to be reflected, and electro-optic phase modulator is reflected into
After project.
4. the endoscopic system according to claim 1 using illuminating light communication, which is characterized in that before the lighting unit
Side is equipped with Unidirectional transparent spectroscope, and the second opto-electronic receiver module is set to the spectroscopical smooth reflection direction of the Unidirectional transparent
On.
5. the endoscopic system according to claim 1 using illuminating light communication, which is characterized in that the first signal tune
Demodulation module processed is connect with the first modulus/D/A converter module, first modulus/D/A converter module output end and the photograph
Bright cell driving circuit input terminal connection, first modulus/D/A converter module input terminal and the second opto-electronic receiver mould
The connection of block output end；
The second signal modulation /demodulation module is connect with the second modulus/D/A converter module, second modulus/digital-to-analogue conversion
Module output end is connect with the reflective light modulator input terminal, second modulus/D/A converter module input terminal with it is described
The connection of first opto-electronic receiver module output end.
6. the endoscopic system according to claim 1 using illuminating light communication, which is characterized in that the reflection light modulation
Device, the first photoelectric conversion module are set on the light reflection direction of the optical element.
7. the endoscopic system according to claim 1 using illuminating light communication, which is characterized in that mirror body side signal
Including picture signal and/or mirror body signal；The host computer side signal includes at least one control signal.
8. the endoscopic system according to claim 2 using illuminating light communication, which is characterized in that the optical element is
Light splitting piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910674034.1A CN110233669A (en) | 2019-07-25 | 2019-07-25 | Using the endoscopic system of illuminating light communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910674034.1A CN110233669A (en) | 2019-07-25 | 2019-07-25 | Using the endoscopic system of illuminating light communication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110233669A true CN110233669A (en) | 2019-09-13 |
Family
ID=67855180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910674034.1A Pending CN110233669A (en) | 2019-07-25 | 2019-07-25 | Using the endoscopic system of illuminating light communication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110233669A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117640903A (en) * | 2023-12-05 | 2024-03-01 | 深圳科思明德医疗科技有限公司 | Signal receiving and transmitting mechanism, endoscope system and signal transmission method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1658249A (en) * | 2004-02-19 | 2005-08-24 | 安捷伦科技有限公司 | Device for remotely stimulating and measuring electronic signals through a fiber optic cable |
| CN1723639A (en) * | 2002-10-24 | 2006-01-18 | 株式会社中川研究所 | Illumination light communication device |
| CN102696189A (en) * | 2010-01-07 | 2012-09-26 | 株式会社日立制作所 | Optical transmission system |
| CN105071854A (en) * | 2015-08-03 | 2015-11-18 | 中国人民解放军理工大学 | Single-light-source full-duplex retro-modulating wireless optical communication device and method |
| CN106452581A (en) * | 2016-07-28 | 2017-02-22 | 杭州摩焕科技有限公司 | Reverse modulation free space optical communication system based on pseudo phase conjugate reflector |
| CN106901678A (en) * | 2015-12-17 | 2017-06-30 | 富士胶片株式会社 | Endoscopic system |
| CN209881792U (en) * | 2019-07-25 | 2019-12-31 | 重庆金山医疗技术研究院有限公司 | Endoscope system applying illumination light communication |
-
2019
- 2019-07-25 CN CN201910674034.1A patent/CN110233669A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1723639A (en) * | 2002-10-24 | 2006-01-18 | 株式会社中川研究所 | Illumination light communication device |
| CN1658249A (en) * | 2004-02-19 | 2005-08-24 | 安捷伦科技有限公司 | Device for remotely stimulating and measuring electronic signals through a fiber optic cable |
| CN102696189A (en) * | 2010-01-07 | 2012-09-26 | 株式会社日立制作所 | Optical transmission system |
| CN105071854A (en) * | 2015-08-03 | 2015-11-18 | 中国人民解放军理工大学 | Single-light-source full-duplex retro-modulating wireless optical communication device and method |
| CN106901678A (en) * | 2015-12-17 | 2017-06-30 | 富士胶片株式会社 | Endoscopic system |
| CN106452581A (en) * | 2016-07-28 | 2017-02-22 | 杭州摩焕科技有限公司 | Reverse modulation free space optical communication system based on pseudo phase conjugate reflector |
| CN209881792U (en) * | 2019-07-25 | 2019-12-31 | 重庆金山医疗技术研究院有限公司 | Endoscope system applying illumination light communication |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117640903A (en) * | 2023-12-05 | 2024-03-01 | 深圳科思明德医疗科技有限公司 | Signal receiving and transmitting mechanism, endoscope system and signal transmission method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101809480B (en) | A mini-scope for multi-directional imaging | |
| CN102215736B (en) | Endoscopic led light source having a feedback control system | |
| CN100457020C (en) | Scanning endoscope | |
| AU2001233273A1 (en) | System and method employing led light sources for a projection display | |
| CN101360460B (en) | Imaging system | |
| KR20130093699A (en) | Apparatus for receiving and transmitting optical information | |
| ATE100946T1 (en) | OPTELECTRICAL TRANSMITTER AND RECEIVER DEVICE. | |
| EP1065551A3 (en) | Reflective non-reciprocal optical device | |
| WO2009063986A1 (en) | Optical circuit and optical signal processing device using the same | |
| CN106955085A (en) | Structural light three-dimensional endoscope apparatus | |
| CN109348116A (en) | Single channel visible light merges monitoring system with infrared image acquisition | |
| RU99107554A (en) | GLOBAL CONFLICT-FREE CONNECTION | |
| CN110233669A (en) | Using the endoscopic system of illuminating light communication | |
| WO2002061983A8 (en) | Dual-mode fiber optic telecommunications system and method | |
| CN105634607A (en) | Apparatus for transmitting and receiving light signal using optical waveguide | |
| CA2217688A1 (en) | Coupling of light into a monolithic waveguide device | |
| CN207910882U (en) | The full-color imaging system of long-range night vision | |
| WO2017094071A1 (en) | Endoscope and endoscope system | |
| CN206096616U (en) | Thin footpathization endoscope probe and endoscope | |
| CN209881792U (en) | Endoscope system applying illumination light communication | |
| JP2021034888A (en) | Receiver for free space optical communications | |
| CN106529645A (en) | Automatic identification passive tag based on visible light communication and communication system thereof | |
| US11222108B2 (en) | Connector-based optical power modulated identification apparatus and method | |
| CN109670367A (en) | A kind of optical image sensing system | |
| EP2336718A3 (en) | System to reduce gyroscopic errors with limited power supply quality in a fiber optic gyroscope |
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 |