CN111260744B - Digital graph generation method and system - Google Patents

Digital graph generation method and system Download PDF

Info

Publication number
CN111260744B
CN111260744B CN202010028222.XA CN202010028222A CN111260744B CN 111260744 B CN111260744 B CN 111260744B CN 202010028222 A CN202010028222 A CN 202010028222A CN 111260744 B CN111260744 B CN 111260744B
Authority
CN
China
Prior art keywords
data
image
imaging result
module
imaging
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
Application number
CN202010028222.XA
Other languages
Chinese (zh)
Other versions
CN111260744A (en
Inventor
孙勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Xinao Photoelectric Technology Co ltd
Original Assignee
Guangzhou Xinao Photoelectric Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guangzhou Xinao Photoelectric Technology Co ltd filed Critical Guangzhou Xinao Photoelectric Technology Co ltd
Priority to CN202010028222.XA priority Critical patent/CN111260744B/en
Publication of CN111260744A publication Critical patent/CN111260744A/en
Application granted granted Critical
Publication of CN111260744B publication Critical patent/CN111260744B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T11/002D [Two Dimensional] image generation
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00Image analysis
    • G06T7/10Segmentation; Edge detection
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00Energy efficient computing, e.g. low power processors, power management or thermal management

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

The invention provides a method and a system for generating a digital graph, comprising the following steps: the data acquisition module sends the pre-imaging result data to the image imaging module; the data acquisition module sends the data arrays in all directions to the image recognition module; after receiving the data arrays in all directions, the image recognition module acquires pre-imaging result data from the image imaging module, performs contrast analysis on the pre-imaging result data and the data arrays in all directions, and outputs imaging result values and stores the imaging result values in the image buffer module; the image generation module invokes the image buffer module data to control the dimmer to generate an imaging result. The imaging result value of the method corresponds to the occupation number of the DMX512 data, so that the occupation of the DMX512 data is greatly reduced by adopting the method, the programmed control work is reduced, and the cost is further controlled.

Description

Digital graph generation method and system
Technical Field
The invention belongs to the technical field of lamplight, and particularly relates to a digital graph generation method and system.
Background
The digital graph generator is applied to stage lighting equipment for professional stage performances such as bars, theatres, multifunctional halls, singing concerts and the like.
The control signal of the stage lighting equipment adopts a DMX512 international general signal, and one page of DMX512 controls 512 data at most. The signal control of the stage lighting equipment is usually carried out by taking each pixel point as a unit, and the number of the pixels of the array light source lamp of the stage lighting equipment is usually more, so that the control difficulty is high, and the cost is high. Taking an LED array effect lamp as an example, if 150 pixels exist, the pattern of the LED array effect lamp is controlled by controlling the pixel switch, when the LED array effect lamp is required to be changed from a round shape to a square shape, a part of pixels are required to be controlled to be turned on and a part of pixels are required to be turned off, 150 pixels occupy 150 pieces of DMX512 data in total, so that one page of DMX512 can only control 3 array effect lamps; because the more the DMX512 can control the array effect lamps, the more the pixel points are, the more difficult the user control programming is caused, and the problem of high control cost of the DMX512 is caused.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a digital graph generation method and a digital graph generation system, which solve the problem of high matching cost of DMX512 when the number of pixels of stage lighting equipment to be controlled is more in the prior art.
The technical scheme of the invention is realized as follows: in a first aspect, a method for generating a digital graphic includes the steps of:
the data acquisition module sends the pre-imaging result data to the image imaging module;
the data acquisition module sends the data arrays in all directions to the image recognition module;
after receiving the data arrays in all directions, the image recognition module acquires pre-imaging result data from the image imaging module, performs contrast analysis on the pre-imaging result data and the data arrays in all directions, and outputs imaging result values and stores the imaging result values in the image buffer module;
the image generation module invokes the image buffer module data to control the dimmer to generate an imaging result.
Optionally, after the image recognition module receives the data arrays in each direction, the image recognition module acquires pre-imaging result data from the image imaging module, and performs contrast analysis on the pre-imaging result data and the data arrays in each direction, and the step of outputting the imaging result value by the image recognition module and storing the imaging result value in the image buffer module further includes the sub-steps of:
after receiving the data arrays in all directions, an image cutting unit of the image recognition module acquires pre-imaging result data from the image imaging module, performs contrast analysis on the pre-imaging result data and the data arrays in all directions, outputs a cutting direction value, and sends the cutting direction value to a data processing unit of the image recognition module;
after receiving the data arrays in each direction, a brightness adjusting unit of the image recognition module acquires pre-imaging result data from the image imaging module, performs contrast analysis on the pre-imaging result data and the data arrays in each direction, outputs brightness values, and sends the brightness values to a data processing unit;
after receiving the data arrays in all directions, a color adjusting unit of the image recognition module acquires pre-imaging result data from the image imaging module, performs contrast analysis on the pre-imaging result data and the data arrays in all directions, outputs color values, and sends the color values to a data processing unit;
the data processing unit analyzes and processes the received cutting direction value, brightness value and color value, generates an imaging result value and stores the imaging result value in the image buffer module.
In a second aspect, a digital graph generating system includes a data acquisition module, a digital graph generator, and a dimmer; the digital graph generator comprises an image imaging module, an image recognition module, an image buffering module and an image generating module;
the data acquisition module is used for transmitting the data arrays in all directions and the pre-imaging result data to the digital graph generator;
the image imaging module is used for storing pre-imaging result data;
the image recognition module is used for outputting imaging result values according to the pre-imaging result data and the data arrays in all directions and storing the imaging result values in the image buffer module;
the image buffer module is used for storing the output imaging result of the image recognition module;
the image generation module is used for retrieving the data of the image buffer module and controlling the dimmer to generate an imaging result;
and the dimmer is used for executing the control instruction of the image generation module and generating an imaging result.
Optionally, the image recognition module includes an image cutting unit, a brightness adjusting unit, a color adjusting unit and a data processing unit;
an image cutting unit for generating a cutting direction value of the imaging result;
the brightness adjusting unit is used for generating brightness values of the data arrays in all directions;
and the primary color adjusting unit is used for generating color values of the data arrays in all directions according to the three primary colors.
And the data processing unit is used for analyzing and processing the cutting direction value, the brightness value and the color value, generating an imaging result value and storing the imaging result value in the image buffer module.
Alternatively, the cutting direction value is 1 to 16.
Compared with the prior art, the invention has the following advantages: compared with the traditional method of controlling the shape of stage lighting equipment by controlling the brightness of a large number of pixel points through a digital graphic generator, after the pre-imaging result and the data arrays in all directions are analyzed, the image recognition module of the digital graphic generator outputs imaging result values and stores the imaging result values in the image buffer module, the image generation module calls the image buffer module data control light modulator to realize the shape conversion of the stage lighting equipment, and the imaging result values correspond to the occupation number of DMX512 data, so that the occupation of the DMX512 data is greatly reduced by adopting the method, the programmed control work is reduced, and the cost is further controlled.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a flow chart of a method of cutting digital graphic generation according to the present invention;
FIG. 2 is a functional block diagram of a digital graphics generation cutting system of the present invention;
the attached drawings are identified: 1, a data acquisition module; 2 a digital graphic generator; an image recognition module 21; 22 an image imaging module; 23 an image generation module; 24 image buffer module; 211 an image cutting unit; 212 a brightness adjusting unit; 213 primary color adjusting unit; 214 a data processing unit; 3 dimmers.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
As shown in fig. 1, a method for generating a digital graphic includes the following steps:
step 1, the data acquisition module 1 sends pre-imaging result data to the image imaging module 22;
step 2, the data acquisition module 1 sends the data arrays in all directions to the image recognition module 21; the data acquisition module acquires data sent by a DMX512 protocol and sends the data to the image recognition module;
step 3, after the image recognition module 21 receives the data arrays in each direction, pre-imaging result data are obtained from the image imaging module 22, and the pre-imaging result data and the data arrays in each direction are compared and analyzed, and the image recognition module 21 outputs imaging result values and stores the imaging result values in the image buffer module 24; because the imaging result value corresponds to the occupation number of the DMX512 data, the occupation of the DMX512 data is greatly reduced by adopting the method, the programming control work is reduced, and the cost is further controlled.
Further, step 3 comprises the following sub-steps:
step 31, after the image cutting unit 211 of the image recognition module 21 receives the data arrays in each direction, the pre-imaging result data is retrieved from the image imaging module 22, and the pre-imaging result data and the data arrays in each direction are compared and analyzed, the image cutting unit 211 outputs the cutting direction value, and the cutting direction value is sent to the data processing unit 214 of the image recognition module 21; the image cutting unit 211 determines that several cutting directions need to be output according to the final pre-imaging result data, so that several DMX512 data are occupied.
Step 32, after the brightness adjustment unit 212 of the image recognition module 21 receives the data arrays in each direction, the pre-imaging result data is retrieved from the image imaging module 22, and the pre-imaging result data and the data arrays in each direction are compared and analyzed, and the brightness adjustment unit 212 outputs a brightness value and sends the brightness value to the data processing unit 214; the brightness adjusting unit 212 occupies 1 DMX512 data if one brightness is according to the type of brightness level to be output, and occupies a plurality of DMX512 data if a plurality of brightnesses are converted back and forth.
Step 33, after receiving the data arrays in each direction, the color adjusting unit of the image recognition module 21 retrieves the pre-imaging result data from the image imaging module 22, performs a contrast analysis on the pre-imaging result data and the data arrays in each direction, and outputs a color value to the color adjusting unit and sends the color value to the data processing unit 214; wherein the primary color adjustment module is based on three primary colors (red, green, blue), then it occupies 3 DMX512 data.
In step 34, the data processing unit 214 analyzes the received cutting direction value, brightness value and color value, and generates and stores the imaging result value in the image buffer module 24. Wherein the imaging result values include a cut direction value, a brightness value, a color value, and the like, and the imaging result values are stored in the corresponding image buffer modules 24.
Specifically, when the stage lighting device needs to realize other functions, corresponding functional modules are correspondingly designed on the digital graphic generator 2, and the functional modules control corresponding regulators to realize other functions, so that the control is replaced by taking pixels as variables. When the pixel points are too many, the more obvious the advantages of the scheme are, namely the occupation rate of DMX512 data is greatly reduced; so that the number of control objects of the digital graphic generator 2 increases.
In step 4, the image generating module 23 invokes the image buffering module 24 to control the dimmer 3 to generate an imaging result.
Among these, the DMX512 protocol was first developed from USITT (american theatre technology association) to a way of controlling the dimmer 3 from a console using a standard digital interface. DMX512 goes beyond analog systems, but cannot completely replace analog systems. The simplicity, reliability and flexibility of DMX512 make it a rapidly becoming the protocol of choice for funds permitting.
Further, the DMX512 protocol is sent through an IP address, 512 DMX512 data are provided on 1 control device, and the conventional control method of the DMX512 protocol is to control the LED array effect lamp in units of pixels (see background technology), and when the LED array effect lamp is required to be changed from a circular shape to a square shape, the control device is required to send 150 DMX512 data to the terminal device. If the scheme is adopted, in order to solve the problem that the LED array effect lamp is changed from a circular shape to a square shape, the image cutting unit 211 of the digital image generator 2 outputs a cutting direction value of 4 and occupies 4 pieces of DMX512 data, and the control device only needs to send the 4 pieces of DMX512 data to the terminal device. Compared with the traditional mode, the occupation ratio of the DMX512 data reaches 150:4. When the pixel points of the LED array effect lamp are more and more, the data occupation cost of the DMX512 is increased, so that the novel control method is adopted to solve the problem of occupation of the DMX512 data, the control programming difficulty of a user is greatly reduced, and the matching cost of the DMX512 is also reduced.
Example two
As shown in fig. 2, a digital pattern generating system, in a second aspect, a digital pattern generating system, includes a data acquisition module 1, a digital pattern generator 2, and a dimmer 3; the digital graphic generator 2 includes an image imaging module 22, an image recognition module 21, an image generation module 23, and an image buffer module 24;
the data acquisition module 1 is used for transmitting the data arrays in all directions and the pre-imaging result data to the digital graph generator 2;
an image imaging module 22 for storing pre-imaging result data;
an image recognition module 21 for outputting an imaging result value according to the pre-imaging result data and the respective direction data arrays and storing the imaging result value in an image buffer module 24;
an image generation module 23 for retrieving the data from the image buffer module 24 and controlling the dimmer 3 to generate an imaging result;
an image buffer module 24 for storing the output imaging result of the image recognition module;
the dimmer 3 is configured to execute a control instruction of the image generation module 23 to generate an imaging result.
Specifically, the image recognition module 21 includes an image cutting unit 211, a brightness adjustment unit 212, a color adjustment unit, and a data processing unit 214; an image cutting unit 211 for generating a cutting direction value of the imaging result; a brightness adjustment unit 212 for generating brightness values of the data arrays in each direction; a primary color adjustment unit 213 for generating color values of the respective directional data arrays from the three primary colors. The data processing unit 214 is configured to perform analysis processing on the cutting direction value, the brightness value, and the color value, generate an imaging result value, and store the imaging result value in the image buffer module. When the stage lighting device further needs other control functions, corresponding functional modules are correspondingly designed on the digital graphic generator 2, and the functional modules control the distributed regulators to realize other functions.
Specifically, the number of cutting directions is 1 to 16. The number of the cutting directions is determined according to the actual lamplight presentation effect, and the number of the cutting directions can be out of the range.
In particular, the shape of the respective directional data arrays may be circular, square, and polygonal. The shape of each direction data array is based on the actual control array light source, and the shape after cutting is set according to the field requirement.
In summary, compared with the traditional method of controlling the shape of stage lighting equipment by controlling the brightness of a large number of pixel points through the digital graphic generator 2, after the pre-imaging result and the data arrays in all directions are analyzed, the image recognition module 21 of the digital graphic generator 2 outputs the imaging result value and stores the imaging result value in the image buffer module 24, the image generation module 23 calls the image buffer module 24 to control the dimmer 3 to realize the shape conversion of the stage lighting equipment, and the imaging result value corresponds to the occupation number of the DMX512 data, so that the occupation of the DMX512 data is greatly reduced by adopting the method, the programmed control work is reduced, and the cost is further controlled.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.

Claims (5)

1. A method for generating a digital graphic, comprising the steps of:
the data acquisition module sends the pre-imaging result data to the image imaging module;
the data acquisition module sends the data arrays in all directions to the image recognition module;
after the image recognition module receives the data arrays in all directions, acquiring the pre-imaging result data from the image imaging module, and comparing and analyzing the pre-imaging result data with the data arrays in all directions, wherein the image recognition module outputs imaging result values and stores the imaging result values in an image buffer module; an image cutting unit, a brightness adjusting unit and a color adjusting unit of the image recognition module are adopted to respectively output cutting direction values, brightness values and color values to generate imaging result values;
the image generation module invokes the image buffer module data to control the dimmer to generate an imaging result.
2. The method of generating a digital image according to claim 1, wherein the step of the image recognition module receiving the respective direction data arrays, acquiring the pre-imaging result data from the image imaging module, and comparing the pre-imaging result data with the respective direction data arrays, and outputting the imaging result values by the image recognition module and storing the imaging result values in the image buffer module further comprises the sub-steps of:
after receiving the data arrays in all directions, an image cutting unit of the image recognition module acquires the pre-imaging result data from the image imaging module, performs contrast analysis on the pre-imaging result data and the data arrays in all directions, outputs a cutting direction value, and sends the cutting direction value to a data processing unit of the image recognition module;
after receiving the data arrays in all directions, a brightness adjusting unit of the image recognition module acquires the pre-imaging result data from the image imaging module, performs contrast analysis on the pre-imaging result data and the data arrays in all directions, outputs a brightness value, and sends the brightness value to the data processing unit;
after receiving the data arrays in all directions, a color adjusting unit of the image recognition module acquires the pre-imaging result data from the image imaging module, performs contrast analysis on the pre-imaging result data and the data arrays in all directions, outputs a color value, and sends the color value to the data processing unit;
and the data processing unit analyzes the received cutting direction value, the received brightness value and the received color value, generates an imaging result value and stores the imaging result value in an image buffer module.
3. The digital graph generating system is characterized by comprising a data acquisition module, a digital graph generator and a dimmer; the digital graph generator comprises an image imaging module, an image recognition module, an image buffering module and an image generating module;
the data acquisition module is used for transmitting the data arrays in all directions and the pre-imaging result data to the digital graph generator;
the image imaging module is used for storing the pre-imaging result data;
the image recognition module is used for outputting imaging result values according to the pre-imaging result data and the data arrays in all directions and storing the imaging result values in the image buffer module; an image cutting unit, a brightness adjusting unit and a color adjusting unit of the image recognition module are adopted to respectively output cutting direction values, brightness values and color values to generate imaging result values;
the image buffer module is used for storing the output imaging result of the image recognition module;
the image generation module is used for retrieving the data of the image buffer module and controlling the dimmer to generate an imaging result;
and the dimmer is used for executing the control instruction of the image generation module and generating an imaging result.
4. A digital graphic generation system according to claim 3, wherein the image recognition module comprises an image cutting unit, a brightness adjustment unit, a color adjustment unit, and a data processing unit;
the image cutting unit is used for generating a cutting direction value of an imaging result;
the brightness adjusting unit is used for generating brightness values of the data arrays in all directions;
the color adjusting unit is used for generating color values of the data arrays in all directions according to the three primary colors;
the data processing unit is used for analyzing and processing the cutting direction value, the brightness value and the color value, generating an imaging result value and storing the imaging result value in the image buffer module.
5. A digital pattern generation system according to claim 3, wherein the cutting direction value is 1 to 16.
CN202010028222.XA 2020-01-10 2020-01-10 Digital graph generation method and system Active CN111260744B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010028222.XA CN111260744B (en) 2020-01-10 2020-01-10 Digital graph generation method and system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010028222.XA CN111260744B (en) 2020-01-10 2020-01-10 Digital graph generation method and system

Publications (2)

Publication Number Publication Date
CN111260744A CN111260744A (en) 2020-06-09
CN111260744B true CN111260744B (en) 2023-05-05

Family

ID=70953917

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010028222.XA Active CN111260744B (en) 2020-01-10 2020-01-10 Digital graph generation method and system

Country Status (1)

Country Link
CN (1) CN111260744B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102318350A (en) * 2009-02-03 2012-01-11 罗布照明有限公司 Improvement to digital picture projection lamp tool system
CN205447477U (en) * 2016-03-23 2016-08-10 广州市雅格莱灯光音响设备有限公司 Practical LED pattern stage lamp
CN109545124A (en) * 2017-09-21 2019-03-29 郑州威利普电子技术有限公司 LED display based on X-Y scheme coding splices bright concealed wire regulating system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013100094A1 (en) * 2011-12-27 2013-07-04 富士フイルム株式会社 Imaging device, method for controlling imaging device, and control program

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102318350A (en) * 2009-02-03 2012-01-11 罗布照明有限公司 Improvement to digital picture projection lamp tool system
CN205447477U (en) * 2016-03-23 2016-08-10 广州市雅格莱灯光音响设备有限公司 Practical LED pattern stage lamp
CN109545124A (en) * 2017-09-21 2019-03-29 郑州威利普电子技术有限公司 LED display based on X-Y scheme coding splices bright concealed wire regulating system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
曲国军 ; .3D、虚拟时代电视灯光发展的新走向.现代电视技术.2013,(第10期),全文. *

Also Published As

Publication number Publication date
CN111260744A (en) 2020-06-09

Similar Documents

Publication Publication Date Title
US7600891B2 (en) Theatre light apparatus incorporating LED tracking system
US8421586B2 (en) Lamp-operating appliance for operating one or more light-sources and process for operating a lamp-operating appliance
JPH062597U (en) Color temperature variable lighting device
JP2011510435A (en) light source
CN101554094A (en) A light source
US9064443B2 (en) Projection apparatus, projection method, and storage medium storing program, for reducing energy consumption by shortening color mixing period
JP2013516655A (en) Control of light source for color sequential image display
US20080062684A1 (en) Theatre light apparatus incorporating independently controlled color flags
US10931916B2 (en) Apparatus, method and computer-readable medium for automatically adjusting the brightness of a videophone visual indicator
US12033547B2 (en) Method of operating a distributed light source for displaying moving images and distributed light source
CN111260744B (en) Digital graph generation method and system
JP4848646B2 (en) Dimmer and dimming system
US20200041082A1 (en) Adaptive Ambiance Lighting
CN111511062A (en) Lamp, lamp control system and method
US7055964B2 (en) Content optimizing system for an image projection lighting device
CN112136365A (en) Lighting system
JP2013073837A (en) Illumination device
HUT65052A (en) Lighting arrangement of variable intensity and colour of light
JP2009540494A (en) Lighting device
JP2023147456A (en) Lighting device
JP2020136152A (en) Illumination presentation device and illumination presentation method
CN117572716B (en) Outdoor laser projection lamp with multiple light sources and artistic patterns
JP7110616B2 (en) Lighting control system, light emitting device, terminal device, voice recognition unit, and method of controlling terminal device
US7527382B2 (en) Image projection lighting device with variable homogeneity
JP2023147401A (en) Lighting device

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