CN108627814A - Laser radar explosion-protection equipment - Google Patents
Laser radar explosion-protection equipment Download PDFInfo
- Publication number
- CN108627814A CN108627814A CN201810954657.XA CN201810954657A CN108627814A CN 108627814 A CN108627814 A CN 108627814A CN 201810954657 A CN201810954657 A CN 201810954657A CN 108627814 A CN108627814 A CN 108627814A
- Authority
- CN
- China
- Prior art keywords
- laser radar
- explosion
- cloche
- protection equipment
- proof
- 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
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 239000005341 toughened glass Substances 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims description 47
- 229910052751 metal Inorganic materials 0.000 claims description 47
- 239000011521 glass Substances 0.000 claims description 30
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 239000002360 explosive Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 238000002347 injection Methods 0.000 abstract description 3
- 239000007924 injection Substances 0.000 abstract description 3
- 239000012780 transparent material Substances 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- -1 is constituted Chemical class 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/481—Constructional features, e.g. arrangements of optical elements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Abstract
Include for being located on the outside of laser radar with explosion-proof cloche, cloche is the tempered glass cover for capableing of light transmission the invention discloses a kind of laser radar explosion-protection equipment.In explosive gas atmosphere, using can explosion-proof cloche cover laser radar, in a manner of flame proof to laser radar carry out it is explosion-proof, without changing the structure of laser radar itself, easy to use, explosion-proof effect is preferable, can make laser radar security application in the present context.Simultaneously as cloche is light transmission, the light of laser radar can project, and can ensure the normal use of laser radar.In addition, because needing the particularity of laser beam injection/receiving when laser radar works, flame proof must use transparent material, and need to take into account light and small, high mechanical strength requirement is lost thoroughly, and tempered glass can preferably meet mechanical strength and transparent requirement, reliably realize explosion-proof.
Description
Technical field
The present invention relates to laser explosion-proof technology field, more particularly to a kind of laser radar explosion-protection equipment.
Background technology
A kind of existing laser radar is to utilize laser flying principle, and surrounding enviroment are perceived with determination by emitting laser beam
The Mobile navigation device of self-position.For the laser radar of the prior art, can not safely be applied in explosive gas atmosphere.
Therefore, how laser radar to be made safely to be applied in explosive gas atmosphere, is that those skilled in the art are current
The technical issues that need to address.
Invention content
In view of this, the object of the present invention is to provide a kind of laser radar explosion-protection equipment, laser radar can be made to explode
It is safely applied in property gaseous environment.
To achieve the above object, the present invention provides the following technical solutions：
A kind of laser radar explosion-protection equipment includes for being located on the outside of laser radar with explosion-proof cloche, the glass
Glass cover is the tempered glass cover for capableing of light transmission.
Preferably, the cloche is the hexagonal prism of two axial end portion opening settings.
Preferably, the cloche is spliced by six glass plates, passes through metal between the two neighboring glass plate
Column connects, and the metal column is set on the rib of the hexagonal prism.
Preferably, the outside of each glass plate is equipped with the frame for reinforcement, the side of the frame and the glass plate
Edge correspondence is fixedly connected.
Preferably, an axial end portion of the cloche is equipped with cricoid boss, and the boss is corresponding with the frame
It is fixedly connected, and the boss is radially projecting relative to the frame.
Preferably, the hexagonal prisms are regular hexagon perpendicular to axial section.
Preferably, the thickness of the cloche is 8mm-10mm.
Preferably, further include the protection network being set on the outside of the cloche, the protection network includes and each glass plate
The dictyosome being correspondingly arranged respectively.
Preferably, the dictyosome is plane dictyosome.
Preferably, the dictyosome by with certain angle the first metal strip and the second metal strip be staggered and formed；Institute
It states in dictyosome, all first metal strips are arranged in parallel, and all second metal strips are arranged in parallel, and first metal
Item is arranged with second metal strip both with respect to peripheral, oblique.
Laser radar explosion-protection equipment provided by the invention include for being located on the outside of laser radar with explosion-proof cloche,
Cloche is the tempered glass cover for capableing of light transmission.
In explosive gas atmosphere, using can explosion-proof cloche cover laser radar, in a manner of flame proof to swash
Optical radar progress is explosion-proof, and without changing the structure of laser radar itself, easy to use, explosion-proof effect is preferable, can make laser thunder
Up to security application in the present context.Simultaneously as cloche is light transmission, the light of laser radar can project, and can ensure
The normal use of laser radar.In addition, the particularity because needing laser beam injection/receiving when laser radar works, flame proof must be adopted
With transparent material, and light need to be taken into account, small, high mechanical strength requirement is lost thoroughly, tempered glass can preferably meet mechanical strength
And transparent requirement, it reliably realizes explosion-proof.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the front view of explosion-protection equipment provided by the present invention；
Fig. 2 is the first angle structural schematic diagram of explosion-protection equipment provided by the present invention；
Fig. 3 is the second angle structural schematic diagram of explosion-protection equipment provided by the present invention.
In Fig. 1 to Fig. 3：
1- cloches, 2- protection networks, the first metal strips of 21-, the second metal strips of 22-, 3- metallic plates, 4- metal columns, the sides 5-
Frame, 6- boss.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Core of the invention is to provide a kind of laser radar explosion-protection equipment, can improve the safety that laser radar uses.
In a kind of specific embodiment of laser radar explosion-protection equipment provided by the present invention, please refer to Fig.1 to Fig. 3, including with
In being located on the outside of laser radar with explosion-proof cloche 1, cloche 1 is the tempered glass cover for capableing of light transmission.Wherein, the glass
Cover 1 can be specifically located on the outside of 3D laser radars.Wherein, the higher the better for the laser transmissivity of cloche.
In the present embodiment, in explosive gas atmosphere, using can explosion-proof cloche cover laser radar, with flame proof
Mode to laser radar carry out it is explosion-proof, without changing the structure of laser radar itself, easy to use, explosion-proof effect is preferable, can
So that laser radar security application in the present context.Simultaneously as cloche is light transmission, the light of laser radar can be penetrated
Go out, can ensure the normal use of laser radar.In addition, the particularity because needing laser beam injection/receiving when laser radar works,
Flame proof must use transparent material, and need to take into account light and small, high mechanical strength requirement is lost thoroughly, and tempered glass can preferably expire
Sufficient mechanical strength and transparent requirement, are reliably realized explosion-proof.
On the basis of the above embodiments, cloche 1 can be the hexagonal prism of two axial end portion opening settings, that is,
The hexagonal cyclic structure of the cloche 1, and the both ends open setting of cloche 1, can facilitate the assembling with laser radar,
It can select light transmission or lighttight component that the opening in cloche 1 is set according to actual needs simultaneously, to improve when anti-
The applicability of quick-fried device.
On the basis of the above embodiments, the both ends of cloche 1 can be sealed by metallic plate 3 respectively, by glass with
Metal forms sealing space, and optionally, the volume of the sealing space can be 2L.Using metallic plate 3, it can ensure explosion-protection equipment
Intensity.Certainly, the axial end portion of cloche 1 can also select plastic plate or other plate member seals.
Based on any of the above embodiments, cloche 1 can be spliced by six glass plates, and glass plate is taken to spell
Cloche 1 is made in the mode connect, easy to process, advantageously ensures that machining accuracy, consequently facilitating realizing mass production.Adjacent two
It is connected by metal column 4 between a glass plate, and metal column 4 is set on the rib of hexagonal prism, advantageously ensures that the effective of light transmission
Area, meanwhile, hexagonal prisms can ensure the stability that cloche 1 is placed.Preferably, glass plate is slide plate.
Optionally, 4 diameter of metal column can be 10mm, glass plate and metal flanging >=5mm after glass plate splicing.
Based on any of the above embodiments, the outside of each glass plate can be equipped with the frame 5 for reinforcement, frame 5
It is corresponding with the edge of corresponding glass plate to be fixedly connected, that is, six glass plates connect one to one with six frames 5.Optionally,
Frame 5 can be the larger metal frame of intensity.Glass plate is reinforced fixing with frame 5, glass plate can be avoided to deform, further
Improve the intensity of cloche 1.Optionally, frame 5 can be connect with cloche 1 with screw, in order to dismantle and repair.
Further, cricoid boss 6 can be arranged in an axial end portion of cloche 1, and the boss 6 is corresponding with frame 5
It is fixedly connected, and boss 6 is radially projecting relative to frame 5.The setting of boss 6 is advantageously implemented the steady placement of cloche 1,
Cloche 1 is avoided to topple over.
Based on any of the above embodiments, hexagonal prisms can be regular hexagon perpendicular to axial section.Wherein, root
According to the assessment of laser radar navigation data amount, effective form of explosion-protection equipment is preferably higher than 30%, and according to calculating, the embodiment
Effective form is much larger than 30%, it is ensured that the effective area of laser transmission.
Based on any of the above embodiments, the thickness of cloche 1 can be 8mm-10mm, for example, 8mm, 9mm,
9.2mm or 10mm, to ensure the mechanical strength of cloche 1.Certainly, the thickness of cloche 1 can also be arranged as required to as it
His numerical value.
Based on any of the above embodiments, which can also include being arranged outside cloche 1
The protection network 2 of side, protection network 2 include the dictyosome being correspondingly arranged respectively with each glass plate, that is, six glass plates and six dictyosomes one
One is correspondingly connected with.Optionally, dictyosome can be fixedly connected on frame 5, can specifically pass through the side of welding or screw connection
Formula.In the present embodiment, protection network 2 is added in the outside of cloche 1, the explosion-proof reliability of explosion-protection equipment can be reinforced, is improved anti-
The intensity of quick-fried device.
Based on any of the above embodiments, dictyosome can be plane net body, to further decrease difficulty of processing.When
So, dictyosome can also be spherical surface dictyosome or the dictyosome of other shapes.
More specifically, dictyosome can by with certain angle the first metal strip 21 and the second metal strip 22 be staggered shape
At.In dictyosome, all first metal strips 21 are arranged in parallel, and all second metal strips 22 are arranged in parallel.Dictyosome is by two kinds of metals
Item is constituted, easy to process, and selects metal strip that can ensure mechanical strength.Meanwhile first metal strip 21 and the second metal strip 22
It is arranged both with respect to peripheral, oblique.Metal strip is obliquely installed with respect to the circumferential direction, can completely be blocked to avoid metal strip a certain whole
Laser beam circumferentially can ensure the reliable use of laser radar.
Specifically by taking orientation shown in Fig. 1 as an example, laser radar can be rotated around horizontal rotating shaft and pitching shaft, the horizontal rotating shaft
It is conllinear with the central shaft of cloche 1.Under identical pitch angle laser radar around horizontal rotating shaft rotate one week, on one glass plate by
The laser beam being linked to be up to several laser points of lower formation, every laser beam are in substantially parallel relationship to circumferential direction.Due to metal strip with
It is circumferentially arranged in an oblique way, the laser beam formed under some pitch angle can be blocked completely to avoid metal strip.
Preferably, in dictyosome, the angle of inclination of the first metal strip 21 with respect to the circumferential direction can be 45 degree, the second metal strip
22 perpendicular can be arranged with the first metal strip 21.Certainly, the first metal strip 21 or the second metal strip 22 with circumferential angle also
Can be 30 degree, 40 degree or other number of degrees.
Optionally, in dictyosome, all first metal strips 21 can be with equidistantly distributed and all second metal strips 22
Equidistantly distributed, to further decrease difficulty of processing.Optionally, distance values can be 15mm.
Optionally, the first metal strip 21 and the second metal strip 22 can be linear, and size is 3mm wide 4mm thick.
It is as follows for the visual field correlation computations for being set as the cloche that hexagonal prism and axial cross section are rectangle in the application：
Effectively detection 60m, 50m, 40m distance of valid data 60%
30 ° of the single trough notch of laser data
Single 16.9 ° of stitching portion metal column field obscuration
Glass protecting metal mesh field obscuration 0%
Then final explosion-proof environment is with former laser total data ratio for effective laser number of 50m detections：
1- (30 ° × 6)/360 °=50%
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, just to refer each other for identical similar portion between each embodiment.
Laser radar explosion-protection equipment provided by the present invention is described in detail above.It is used herein specifically a
Principle and implementation of the present invention are described for example, and the explanation of above example is only intended to help to understand the present invention's
Method and its core concept.It should be pointed out that for those skilled in the art, not departing from the principle of the invention
Under the premise of, it can be with several improvements and modifications are made to the present invention, these improvement and modification also fall into the claims in the present invention
Protection domain in.
Claims (10)
1. a kind of laser radar explosion-protection equipment, which is characterized in that include for being located on the outside of laser radar with explosion-proof glass
It covers (1), the cloche (1) is the tempered glass cover for capableing of light transmission.
2. laser radar explosion-protection equipment according to claim 1, which is characterized in that the cloche (1) is two axial directions
The hexagonal prism of open-ended setting.
3. laser radar explosion-protection equipment according to claim 2, which is characterized in that the cloche (1) is by six glass
Plate is spliced, and is connected by metal column (4) between the two neighboring glass plate, and the metal column (4) is set to described six
On the rib of prism.
4. laser radar explosion-protection equipment according to claim 3, which is characterized in that the outside of each glass plate, which is equipped with, to be used
In the frame (5) of reinforcement, the frame (5) is corresponding with the edge of the glass plate to be fixedly connected.
5. laser radar explosion-protection equipment according to claim 4, which is characterized in that an axial direction of the cloche (1)
End is equipped with cricoid boss (6), and the boss (6) is corresponding with the frame (5) to be fixedly connected, and the boss (6) is opposite
It is radially projecting in the frame (5).
6. laser radar explosion-protection equipment according to claim 3, which is characterized in that the hexagonal prisms are cut perpendicular to axial
Face is regular hexagon.
7. laser radar explosion-protection equipment according to claim 6, which is characterized in that the thickness of the cloche (1) is
8mm-10mm。
8. laser radar explosion-protection equipment according to claim 4, which is characterized in that further include being set to the cloche (1)
The protection network (2) in outside, the protection network (2) include the dictyosome being correspondingly arranged respectively with each glass plate.
9. laser radar explosion-protection equipment according to claim 8, which is characterized in that the dictyosome is plane dictyosome.
10. laser radar explosion-protection equipment according to claim 9, which is characterized in that the dictyosome is by having certain angle
The first metal strip (21) and the second metal strip (22) be staggered to be formed；In the dictyosome, all first metal strips
(21) it is arranged in parallel, all second metal strips (22) are arranged in parallel, and first metal strip (21) and second gold medal
Belong to item (22) both with respect to peripheral, oblique to be arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810954657.XA CN108627814A (en) | 2018-08-21 | 2018-08-21 | Laser radar explosion-protection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810954657.XA CN108627814A (en) | 2018-08-21 | 2018-08-21 | Laser radar explosion-protection equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108627814A true CN108627814A (en) | 2018-10-09 |
Family
ID=63708981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810954657.XA Pending CN108627814A (en) | 2018-08-21 | 2018-08-21 | Laser radar explosion-protection equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108627814A (en) |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2648280Y (en) * | 2003-10-30 | 2004-10-13 | 何建东 | Protection floor lamp |
| CN1994187A (en) * | 2006-12-21 | 2007-07-11 | 周全平 | Glass furniture and method for producing the same |
| CN201314534Y (en) * | 2008-12-18 | 2009-09-23 | 常州裕华电子设备制造有限公司 | Explosion-proof laser light |
| DE202009004397U1 (en) * | 2009-03-28 | 2010-08-12 | Sick Ag | safety device |
| CN203131600U (en) * | 2013-02-26 | 2013-08-14 | 福建省华电防爆电器制造有限公司 | Novel LED (light-emitting diode) mining lamp |
| CN203145370U (en) * | 2013-01-13 | 2013-08-21 | 招景棉 | Glass-metal handrail with glass supported and mounted fixedly |
| CN103342204A (en) * | 2013-07-19 | 2013-10-09 | 公安部第一研究所 | Nonmetallic anti-explosion container and manufacturing process thereof |
| CN205195053U (en) * | 2015-08-10 | 2016-04-27 | 四川贝森电器自动化有限公司 | Explosion -proof window of cubical switchboard |
| CN205274109U (en) * | 2015-12-25 | 2016-06-01 | 青岛佳印达工贸有限公司 | Display packing box |
| CN205513721U (en) * | 2016-03-15 | 2016-08-31 | 郑州市洪宇医教设备有限公司 | Whole corpse sample stand |
| CN205535272U (en) * | 2016-01-20 | 2016-08-31 | 山东华鼎伟业能源科技股份有限公司 | Explosion -proof LED platform lamp |
| CN106224843A (en) * | 2016-08-31 | 2016-12-14 | 田玉 | A kind of floor-lamp with heat-insulation scald-proof function |
| CN107152643A (en) * | 2017-05-10 | 2017-09-12 | 浙江华云清洁能源有限公司 | It is a kind of to reduce the road illumination device of operating cost |
| CN206945001U (en) * | 2017-06-15 | 2018-01-30 | 南阳凯鑫光电股份有限公司 | Geoplane protective cover and radiating laser beams device |
| CN207112529U (en) * | 2017-08-18 | 2018-03-16 | 安吉思防爆技术（苏州）有限公司 | A kind of Antiexplosive working lamp |
| CN208969231U (en) * | 2018-08-21 | 2019-06-11 | 浙江国自机器人技术有限公司 | Laser radar explosion-protection equipment |
-
2018
- 2018-08-21 CN CN201810954657.XA patent/CN108627814A/en active Pending
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2648280Y (en) * | 2003-10-30 | 2004-10-13 | 何建东 | Protection floor lamp |
| CN1994187A (en) * | 2006-12-21 | 2007-07-11 | 周全平 | Glass furniture and method for producing the same |
| CN201314534Y (en) * | 2008-12-18 | 2009-09-23 | 常州裕华电子设备制造有限公司 | Explosion-proof laser light |
| DE202009004397U1 (en) * | 2009-03-28 | 2010-08-12 | Sick Ag | safety device |
| CN203145370U (en) * | 2013-01-13 | 2013-08-21 | 招景棉 | Glass-metal handrail with glass supported and mounted fixedly |
| CN203131600U (en) * | 2013-02-26 | 2013-08-14 | 福建省华电防爆电器制造有限公司 | Novel LED (light-emitting diode) mining lamp |
| CN103342204A (en) * | 2013-07-19 | 2013-10-09 | 公安部第一研究所 | Nonmetallic anti-explosion container and manufacturing process thereof |
| CN205195053U (en) * | 2015-08-10 | 2016-04-27 | 四川贝森电器自动化有限公司 | Explosion -proof window of cubical switchboard |
| CN205274109U (en) * | 2015-12-25 | 2016-06-01 | 青岛佳印达工贸有限公司 | Display packing box |
| CN205535272U (en) * | 2016-01-20 | 2016-08-31 | 山东华鼎伟业能源科技股份有限公司 | Explosion -proof LED platform lamp |
| CN205513721U (en) * | 2016-03-15 | 2016-08-31 | 郑州市洪宇医教设备有限公司 | Whole corpse sample stand |
| CN106224843A (en) * | 2016-08-31 | 2016-12-14 | 田玉 | A kind of floor-lamp with heat-insulation scald-proof function |
| CN107152643A (en) * | 2017-05-10 | 2017-09-12 | 浙江华云清洁能源有限公司 | It is a kind of to reduce the road illumination device of operating cost |
| CN206945001U (en) * | 2017-06-15 | 2018-01-30 | 南阳凯鑫光电股份有限公司 | Geoplane protective cover and radiating laser beams device |
| CN207112529U (en) * | 2017-08-18 | 2018-03-16 | 安吉思防爆技术（苏州）有限公司 | A kind of Antiexplosive working lamp |
| CN208969231U (en) * | 2018-08-21 | 2019-06-11 | 浙江国自机器人技术有限公司 | Laser radar explosion-protection equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11332952B2 (en) | Subsection of a tower section, a tower and a method for manufacturing a subsection of a tower section | |
| CN109001710A (en) | Laser radar explosion-protection equipment | |
| US20140083742A1 (en) | Patterned transparent conductive film based on random grid | |
| EP2851741B1 (en) | Prism sheet member and multivision display apparatus having the same | |
| CN208969232U (en) | Laser radar explosion-protection equipment | |
| CN112907731A (en) | Oil gas major infrastructure multi-disaster accident coupling three-dimensional simulation system | |
| KR20140090482A (en) | Display device | |
| CN208969231U (en) | Laser radar explosion-protection equipment | |
| TW201311581A (en) | Laminated glass and translucent soundproof panel | |
| CN209264944U (en) | Laser radar explosion-protection equipment | |
| CN108627814A (en) | Laser radar explosion-protection equipment | |
| WO2014024677A1 (en) | Size-altering optical image forming device and manufacturing method therefor | |
| CN109031246A (en) | Laser radar explosion-protection equipment | |
| CN102636906A (en) | Optical diaphragm of liquid crystal display device and liquid crystal display device | |
| EP3153908B1 (en) | Image display device and image display method | |
| Costin | Bushfire: retrofitting rural and urban fringe structures—implications of current engineering data | |
| CN104091417B (en) | Electric transmission line channel protection alarm method | |
| CN215814920U (en) | Combined box body LED display screen | |
| Coghe | Efficiency of different cage armour systems | |
| US20130312596A1 (en) | Protection grid | |
| US9593826B2 (en) | Strobe assembly | |
| CN217360848U (en) | Security protection inspection device | |
| CN206930873U (en) | Light guide board fixing structure and backlight module | |
| CN205746616U (en) | Novel backlight module and LED display assembly | |
| CN205722634U (en) | LED display external member |
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 |