CN112208735A - Sealed cabin of underwater laser detection system - Google Patents
Sealed cabin of underwater laser detection system Download PDFInfo
- Publication number
- CN112208735A CN112208735A CN202010843691.7A CN202010843691A CN112208735A CN 112208735 A CN112208735 A CN 112208735A CN 202010843691 A CN202010843691 A CN 202010843691A CN 112208735 A CN112208735 A CN 112208735A
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- CN
- China
- Prior art keywords
- end cover
- light source
- window
- imaging
- sealing
- 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
- 238000001514 detection method Methods 0.000 title claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 79
- 238000003384 imaging method Methods 0.000 claims abstract description 56
- 239000011521 glass Substances 0.000 claims abstract description 30
- 230000006835 compression Effects 0.000 claims abstract description 7
- 238000007906 compression Methods 0.000 claims abstract description 7
- 230000007797 corrosion Effects 0.000 claims abstract description 6
- 238000005260 corrosion Methods 0.000 claims abstract description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 239000002775 capsule Substances 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 8
- 230000005484 gravity Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 235000002639 sodium chloride Nutrition 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012634 optical imaging Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
- B63C11/52—Tools specially adapted for working underwater, not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
- B63G8/00—Underwater vessels, e.g. submarines; Equipment specially adapted therefor
- B63G8/001—Underwater vessels adapted for special purposes, e.g. unmanned underwater vessels; Equipment specially adapted therefor, e.g. docking stations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
- B63G8/00—Underwater vessels, e.g. submarines; Equipment specially adapted therefor
- B63G8/38—Arrangement of visual or electronic watch equipment, e.g. of periscopes, of radar
-
- 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
Abstract
The invention discloses a sealed cabin of an underwater laser detection system, which comprises a front end cover, a barrel and a rear end cover which are sequentially connected in a sealing manner, wherein the front end cover is provided with a light source window and an imaging window, the light source window and the imaging window are respectively provided with light source glass and imaging glass, the light source glass and the imaging glass are respectively sealed and pressed at the light source window and the imaging window through a compression ring, and through holes are respectively formed in the compression ring at positions corresponding to the light source window and the imaging window; the rear end cover is provided with a plug connector; the light source window and the imaging window are reasonably arranged, so that the underwater imaging effect is improved; the light source window and the imaging window are axially sealed through the pressure ring, and the joints of the front end cover and the barrel and the joints of the rear end cover and the barrel are sealed in a radial sealing mode, so that the interior of the cabin is completely isolated from the external environment, and the overall waterproof sealing effect of the cabin is improved; high strength, strong underwater pressure resistance, small volume, zero underwater gravity, corrosion resistance and durability.
Description
Technical Field
The invention relates to the technical field of underwater equipment, in particular to a sealed cabin of an underwater laser detection system.
Background
The underwater laser detection imaging technology has great advantages and application prospects in the fields of ocean development, deep sea detection, ocean operation, fishing boat salvage, salvation and the like. The sealed cabin body is used as a protective cover of the detection system, a laser light-emitting window, a detection receiving window, interfaces for power supply, signal transmission and the like need to be provided, and meanwhile, the sealed cabin body needs to bear different water depth pressures, water-proof sealing, corrosion resistance and other severe underwater conditions, so that safe and reliable conditions and environments are provided for underwater photoelectric detection.
The underwater optical equipment cabin body has the requirements of pressure resistance, sealing, water resistance, corrosion resistance, miniaturization, high reliability and the like, so that the underwater optical equipment cabin body has completely different design requirements relative to optical imaging equipment in the air, and meanwhile, the underwater optical equipment has laser emission and imaging receiving conditions, so that the sealing requirement of windowing on the underwater optical equipment cabin body is required to be met. The common underwater equipment cabin body structure is difficult to carry out underwater portable miniaturization, the pressure-resistant depth is insufficient, the windowing structure is complex, and the imaging quality of laser detection is influenced.
Disclosure of Invention
In order to solve the problems, the invention provides a sealing cabin body of an underwater laser detection system, which adopts a cylindrical underwater sealing structure, has higher structural compressive strength and good underwater sealing property, is suitable for underwater laser detection imaging and environmental testing, and has stable and reliable performance.
The technical scheme adopted by the invention is as follows:
a sealed cabin of an underwater laser detection system comprises a front end cover, a barrel and a rear end cover which are sequentially and hermetically connected, wherein a light source window and an imaging window are formed in the front end cover, light source glass and imaging glass are respectively arranged at the light source window and the imaging window, the light source glass and the imaging glass are respectively and tightly sealed and pressed at the light source window and the imaging window through compression rings, and through holes are respectively formed in the compression rings at positions corresponding to the light source window and the imaging window; and the rear end cover is provided with a plug connector.
The front end cover is the front end of a sealed cabin body of the underwater laser detection system, a light source window and an imaging window are arranged on the front end cover, the light source window is used for irradiating the laser of the imaging equipment in the cabin body onto a target object through the window, reflected light irradiated on the target object enters the cabin body imaging equipment through the imaging window, and the two windows are key structures of underwater imaging; the light source window and the imaging window are sealed through the pressure ring, and the waterproof sealing effect of the equipment is improved.
Preferably, the outer sides of the light source window and the imaging window are both counter bores, and the light source glass and the imaging glass are respectively arranged in the counter bores; a first sealing groove and a second sealing groove are formed in the step surface of the counter bore along the circumferential direction of the light source window and the imaging window respectively, a first sealing ring and a second sealing ring are arranged in the first sealing groove and the second sealing groove respectively, the pressing ring is fixedly connected with the front end cover through bolts, the first sealing ring is pressed between the light source glass and the first sealing groove, and the second sealing ring is pressed between the imaging glass and the second sealing groove; the design of the counter bore improves the stability and reliability of the structure, adopts the axial sealing mode to completely isolate the interior of the cabin from the external environment, and further improves the waterproof sealing effect of the cabin; simple and firm installation, easy disassembly and maintenance.
Preferably, the side walls of the front end cover and the rear end cover are respectively in contact seal with the inner wall of the cylinder body, the side walls of the front end cover and the rear end cover are respectively provided with a third seal groove and a fourth seal groove along the circumferential direction, a third seal ring and a fourth seal ring are respectively arranged in the third seal groove and the fourth seal groove, the third seal ring is tightly pressed between the third seal groove and the inner wall of the cylinder body, and the fourth seal ring is tightly pressed between the fourth seal groove and the inner wall of the cylinder body; the front end cover, the rear end cover and the barrel are sealed by adopting a radial sealing mode, so that the integral underwater sealing effect of the cabin is improved.
Preferably, the two sides of the cylinder are fixedly connected with portable handles, the two ends of the portable handles are respectively fixed at the two ends of the cylinder through bolts, and the bolts at the two ends penetrate through the cylinder and are respectively screwed on the front end cover and the rear end cover; the portable handle makes to carry the use under water more convenient to, the bolt of fixed portable handle passes the barrel and screws up respectively on front end housing and rear end cap, and such design makes bolt rational utilization the front end housing, rear end cap and the sealed of barrel department, has avoided sealing once more in bolt department, prevents simultaneously that portable handle from directly dragging the barrel, prevents that the barrel from warping.
Preferably, the front end cover and the rear end cover are respectively connected with the cylinder body through countersunk bolts, and the countersunk bolts respectively penetrate through the side walls of the two ends of the cylinder body and are respectively screwed on the front end cover and the rear end cover; the front end cover and the rear end cover are axially positioned, so that axial displacement is prevented from being transmitted, and the strength of the sealed cabin body is enhanced.
Preferably, the rear end cover is respectively provided with a four-core connector, an eight-core connector, a ten-core connector and a first air hole, and the front end cover is provided with a second air hole; the first air hole and the second air hole are sealed through flange bolts; the four-core connector is used for special power supply of equipment, the eight-core connector is used for video transmission, the ten-core connector is used for command issuing and signal acquisition, and the 3 connectors are hermetically locked and installed with the rear end cover in a threaded fastening mode; the first air hole and the second air hole are used for filling inert gas to remove air in the sealed cabin before the cabin is drained, and water vapor generated in the cabin is prevented from being condensed at the imaging window and the light source window to influence optical imaging.
Preferably, the front end cover, the cylinder and the rear end cover are made of 2A12-H112 type aluminum alloy, the wall thickness of the cylinder is 4mm, the circle center degree is 0.02mm, and the coaxiality is 0.01 mm; the circle center degree of the front end cover and the rear end cover is 0.01mm, and the coaxiality is 0.01 mm; the cabin body has high strength, good waterproof sealing performance and strong underwater pressure resistance, the wall thickness of the cylinder is 4mm, the water depth under the marine environment can be more than 150m, and meanwhile, the cylindrical structure has the characteristic of good stability, so that the strength of the whole cabin body is further improved.
Preferably, the roughness of the surfaces in contact with the first seal ring, the second seal ring, the third seal ring and the fourth seal ring, respectively, is 1.6 μm, and the compression amount of the first seal ring, the second seal ring, the third seal ring and the fourth seal ring is 21-23%.
Preferably, the outer part of the sealed cabin body is provided with an antirust coating, and the outer part of the sealed cabin body is subjected to antirust spraying, so that corrosion damage to equipment caused by a sea salt environment when the equipment is used underwater for a long time is effectively prevented.
The invention provides a sealed cabin body of an underwater laser detection system,
1. the light source window and the imaging window are reasonably arranged, so that the underwater imaging effect is improved;
2. the light source window and the imaging window are axially sealed through the pressure ring, and the joints of the front end cover and the barrel and the joints of the rear end cover and the barrel are sealed in a radial sealing mode, so that the interior of the cabin is completely isolated from the external environment, and the overall waterproof sealing effect of the cabin is improved;
3. the capsule body is made of aerospace high-strength aluminum alloy, the cylinder body is of a cylindrical structure, the wall thickness is 4mm, the strength is high, the underwater pressure resistance is strong, the size is small, the concealment is good, the carrying is easy, and the volume of the sealed capsule body is one third of that of similar underwater laser imaging product equipment;
4. and underwater zero gravity. The weight of equipment in an underwater environment is an important factor influencing the operability of the underwater equipment, and the internal structure of the cabin body is optimized, so that the weight of the sealed cabin body is equal to the drainage weight of the sealed cabin body, the underwater zero-gravity index of the equipment is realized, and the equipment is convenient to carry, operate and use flexibly;
5. corrosion resistance and durability. The outer part of the sealed cabin body is sprayed with rust-proof paint, so that the equipment is effectively prevented from being corroded and damaged by the sea salt environment when the equipment is used underwater for a long time.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic structural view of a front end cap;
FIG. 3 is a schematic structural view of the rear end cap;
fig. 4 is a schematic cross-sectional structure of the front end cap and the rear end cap.
Reference numerals: 1. a front end cover; 2. a barrel; 3. a rear end cap; 4. a light source window; 5. an imaging window; 6. a light source glass; 7. imaging glass; 8. pressing a ring; 9. a counter bore; 10. a first seal groove; 11. a second seal groove; 12 a first seal ring; 13. a second seal ring; 14. a hexagon socket head cap screw; 15. a third seal groove; 16. a fourth seal groove; 17. a third seal ring; 18. a fourth seal ring; 19. a portable handle; 20. a pan head bolt; 21. a countersunk bolt; 22. a four-core connector; 23. an eight-core connector; 24. a ten-core connector; 25 a first air hole; 26. a second air hole; 27. and (4) flange bolts.
Detailed Description
In order that those skilled in the art will be better able to understand the present invention, the following detailed description of the invention is given in conjunction with the accompanying drawings.
A sealed cabin of an underwater laser detection system is shown in figures 1-4 and comprises a front end cover 1, a barrel 2 and a rear end cover 3 which are sequentially connected in a sealing manner, wherein a light source window 4 and an imaging window 5 are formed in the front end cover 1, light source glass 6 and imaging glass 7 are respectively arranged at the light source window 4 and the imaging window 5, the light source glass 6 and the imaging glass 7 are respectively sealed and pressed at the light source window 4 and the imaging window 5 through a pressing ring 8, and through holes are respectively formed in positions, corresponding to the light source window 4 and the imaging window 5, on the pressing ring 8; the outer sides of the light source window 4 and the imaging window 5 are both provided with counter bores 9, and the light source glass 6 and the imaging glass 7 are respectively arranged in the counter bores 9; as shown in fig. 4, a first sealing groove 10 and a second sealing groove 11 are respectively formed in the step surface of the counterbore 9 along the circumferential direction of the light source window 4 and the imaging window 5, a first sealing ring 12 and a second sealing ring 13 are respectively arranged in the first sealing groove 10 and the second sealing groove 11, the pressing ring 8 is fixedly connected with the front end cover 1 through an inner hexagonal bolt 14, the first sealing ring 12 is pressed between the light source glass 6 and the first sealing groove 10, and the second sealing ring 13 is pressed between the imaging glass 7 and the second sealing groove 11.
As shown in fig. 4, the side walls of the front end cover 1 and the rear end cover 3 are respectively in contact seal with the inner wall of the cylinder 2, the side walls of the front end cover 1 and the rear end cover 3 are respectively provided with a third seal groove 15 and a fourth seal groove 16 along the circumferential direction, a third seal ring 17 and a fourth seal ring 18 are respectively arranged in the third seal groove 15 and the fourth seal groove 16, the third seal ring 17 is compressed between the third seal groove 15 and the inner wall of the cylinder 2, and the fourth seal ring 18 is compressed between the fourth seal groove 16 and the inner wall of the cylinder 2. The roughness of the surfaces contacted with the first sealing ring 12, the second sealing ring 13, the third sealing ring 17 and the fourth sealing ring 18 is 1.6 mu m, and the compression amount of the first sealing ring 12, the second sealing ring 13, the third sealing ring 17 and the fourth sealing ring 18 is 21-23%; sealing silicone grease is properly coated in the sealing ring and the sealing groove, gas and sealing air gaps in the groove are removed, and the sealing effect is guaranteed.
The portable lifting handles 19 are fixedly connected to two sides of the barrel body 2, two ends of each portable lifting handle 19 are respectively fixed to two ends of the barrel body 2 through pan head bolts 20, and the pan head bolts 20 at the two ends penetrate through the barrel body 2 and are respectively screwed on the front end cover 1 and the rear end cover 3.
The front end cover 1 and the rear end cover 3 are respectively connected with the cylinder body 2 through countersunk bolts 21, and the countersunk bolts 21 at the two ends penetrate through the side walls at the two ends of the cylinder body 2 and are respectively screwed on the front end cover 1 and the rear end cover 3. When the hexagon socket head cap screw 14 is fastened with the countersunk head screw 21, a proper amount of silicon rubber is coated on the thread pair to increase the locking property and improve the overall structural strength and stability of the cabin body.
The rear end cover 3 is respectively provided with a four-core connector 22, an eight-core connector 23, a ten-core connector 24 and a first air hole 25, and the front end cover 1 is provided with a second air hole 26; the first air hole 25 and the second air hole 26 are sealed by flange bolts 27.
The front end cover 1, the cylinder body 2 and the rear end cover 3 are all made of 2A12-H112 type aluminum alloy, the wall thickness of the cylinder body 2 is 4mm, the circle center degree is 0.02mm, and the coaxiality is 0.01 mm; the circle center degree of the front end cover 1 and the rear end cover 3 is 0.01mm, and the coaxiality is 0.01 mm.
In order to prevent the equipment from being corroded and damaged by the sea salt environment when the equipment is used underwater for a long time, the outer part of the sealing cabin body is provided with an antirust coating, and the outer part of the sealing cabin body is subjected to antirust spraying to prevent the equipment from being corroded and damaged.
The underwater laser detection system sealing cabin body provided by the invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and central concepts of the present invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (9)
1. A sealed cabin body of an underwater laser detection system is characterized by comprising a front end cover, a barrel and a rear end cover which are sequentially connected in a sealing manner, wherein a light source window and an imaging window are formed in the front end cover, light source glass and imaging glass are respectively arranged at the light source window and the imaging window, the light source glass and the imaging glass are respectively sealed and pressed at the light source window and the imaging window through a pressing ring, and through holes are respectively formed in positions, corresponding to the light source window and the imaging window, on the pressing ring; and the rear end cover is provided with a plug connector.
2. The sealed cabin of claim 1, wherein the outer sides of the light source window and the imaging window are both counter bores, and the light source glass and the imaging glass are respectively arranged in the counter bores; a first sealing groove and a second sealing groove are formed in the step surface of the counter bore along the circumferential direction of the light source window and the imaging window respectively, a first sealing ring and a second sealing ring are arranged in the first sealing groove and the second sealing groove respectively, the pressing ring is fixedly connected with the front end cover through bolts, the first sealing ring is pressed between the light source glass and the first sealing groove, and the second sealing ring is pressed between the imaging glass and the second sealing groove.
3. The sealed cabin of claim 1, wherein the sidewalls of the front end cover and the rear end cover are respectively in contact sealing with the inner wall of the cylinder, the sidewalls of the front end cover and the rear end cover are respectively provided with a third sealing groove and a fourth sealing groove along the circumferential direction, the third sealing groove and the fourth sealing groove are respectively provided with a third sealing ring and a fourth sealing ring, the third sealing ring is compressed between the third sealing groove and the inner wall of the cylinder, and the fourth sealing ring is compressed between the fourth sealing groove and the inner wall of the cylinder.
4. The sealed cabin of claim 1, wherein two sides of the cylinder are fixedly connected with portable handles, two ends of the portable handles are respectively fixed to two ends of the cylinder through bolts, and the bolts at the two ends penetrate through the cylinder and are respectively screwed on the front end cover and the rear end cover.
5. The sealed cabin of claim 1, wherein the front end cover and the rear end cover are connected to the barrel through countersunk bolts, and the countersunk bolts respectively penetrate through side walls of two ends of the barrel and are screwed on the front end cover and the rear end cover.
6. The sealed cabin of claim 1, wherein the rear end cap is provided with a four-core connector, an eight-core connector, a ten-core connector and a first air hole, and the front end cap is provided with a second air hole; the first air hole and the second air hole are sealed through flange bolts.
7. The sealed cabin of the underwater laser detection system of claim 1, wherein the front end cover, the cylinder and the rear end cover are made of 2A12-H112 type aluminum alloy, the wall thickness of the cylinder is 4mm, the degree of the center of the circle is 0.02mm, and the coaxiality is 0.01 mm; the circle center degree of the front end cover and the rear end cover is 0.01mm, and the coaxiality is 0.01 mm.
8. The sealed cabin of claim 1, wherein the roughness of the surfaces of the first, second, third and fourth sealing rings is 1.6 μm, and the compression of the first, second, third and fourth sealing rings is 21-23%.
9. The sealed capsule of claim 1, wherein the sealed capsule has an anti-corrosive coating on its exterior to prevent corrosion damage to the equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010843691.7A CN112208735A (en) | 2020-08-20 | 2020-08-20 | Sealed cabin of underwater laser detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010843691.7A CN112208735A (en) | 2020-08-20 | 2020-08-20 | Sealed cabin of underwater laser detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112208735A true CN112208735A (en) | 2021-01-12 |
Family
ID=74058638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010843691.7A Pending CN112208735A (en) | 2020-08-20 | 2020-08-20 | Sealed cabin of underwater laser detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112208735A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114690515A (en) * | 2021-12-06 | 2022-07-01 | 北京航星机器制造有限公司 | Sealed compartment device of underwater high-speed camera |
| CN115656175A (en) * | 2022-12-09 | 2023-01-31 | 海南浙江大学研究院 | Plankton monitoring system for backlight imaging and data processing method |
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| EP1465263A2 (en) * | 2003-04-04 | 2004-10-06 | Shinko Electric Industries Co., Ltd. | Cap for optical semiconductor device |
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| CN208868276U (en) * | 2018-10-23 | 2019-05-17 | 天津蓝鳍海洋工程有限公司 | A kind of sealed compartment and underwater navigation equipment |
| CN209921583U (en) * | 2019-04-11 | 2020-01-10 | 淮海工学院 | Underwater visual observation system |
| CN211266965U (en) * | 2020-03-09 | 2020-08-14 | 舟山海慧海洋科技有限公司 | Underwater fluorescent camera |
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2020
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| EP1465263A2 (en) * | 2003-04-04 | 2004-10-06 | Shinko Electric Industries Co., Ltd. | Cap for optical semiconductor device |
| US20180045229A1 (en) * | 2016-08-09 | 2018-02-15 | JARP Industries, Inc. | Pressure vessel arrangement providing piston position feedback, pressure vessel, and method for providing piston position feedback in a pressure vessel |
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| CN114690515A (en) * | 2021-12-06 | 2022-07-01 | 北京航星机器制造有限公司 | Sealed compartment device of underwater high-speed camera |
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| CN115656175A (en) * | 2022-12-09 | 2023-01-31 | 海南浙江大学研究院 | Plankton monitoring system for backlight imaging and data processing method |
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Application publication date: 20210112 |