CN117289471B - Head-mounted display device convenient to clean - Google Patents
Head-mounted display device convenient to clean Download PDFInfo
- Publication number
- CN117289471B CN117289471B CN202311576364.XA CN202311576364A CN117289471B CN 117289471 B CN117289471 B CN 117289471B CN 202311576364 A CN202311576364 A CN 202311576364A CN 117289471 B CN117289471 B CN 117289471B
- Authority
- CN
- China
- Prior art keywords
- glasses
- display device
- mounted display
- clamping
- lens
- 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
Links
- 239000011521 glass Substances 0.000 claims abstract description 65
- 238000004140 cleaning Methods 0.000 claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 230000001681 protective effect Effects 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 230000006835 compression Effects 0.000 claims description 12
- 238000007906 compression Methods 0.000 claims description 12
- 239000006260 foam Substances 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 10
- 230000002745 absorbent Effects 0.000 description 6
- 239000002250 absorbent Substances 0.000 description 6
- 229920000742 Cotton Polymers 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 210000003128 head Anatomy 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0176—Head mounted characterised by mechanical features
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Eyeglasses (AREA)
Abstract
The invention relates to the technical field of VR glasses, in particular to a head-mounted display device convenient to clean, which comprises: VR glasses main part and flexible area, the both sides of VR glasses main part all are connected with the flexible area in rotation; the protection pad is connected to the two telescopic belts; the lens barrel is provided with two lens barrels which are connected to two sides of the interior of the VR glasses main body; and the cylinder body is connected in the VR glasses main body. According to the invention, the VR glasses body can be worn on the head through the telescopic belt and the protective pad, then the VR glasses body starts to be used, the piston block can be driven to move downwards by pressing the pressure lever downwards, so that air in the piston cylinder enters the cylinder, the air pushes the slide rod to move forwards, the lenses extend out of the VR glasses body, the lenses are convenient to clean, the lens barrel can be sealed by the sealing ring, cleaning liquid can be absorbed by the water absorbing pad, and the cleaning liquid is prevented from entering the VR glasses body, so that the short circuit of the VR glasses body can be avoided.
Description
Technical Field
The invention relates to the technical field of virtual reality, in particular to a head-mounted display device convenient to clean.
Background
With the continuous progress of technology, the technology of a head-mounted display device has become a new trend of entertainment, education and immersive experience of people, and as important equipment of VR technology, virtual reality glasses are becoming popular in daily life of people.
After the head-mounted display device is used for a long time, dirt and dust can be stained on the lenses, the dirt and dust can influence visual effect, therefore, regular cleaning of the lenses is crucial for keeping good VR experience, cleaning liquid is generally required to be used for cleaning when relatively stubborn dirt and grease appear on the lenses, the lenses are usually located in VR glasses main bodies, the cleaning liquid is sprayed onto the lenses or when wetted cloth is placed on the lenses, the cleaning liquid can flow downwards, and the cleaning liquid is easy to permeate into the VR glasses main bodies, so that the VR glasses main bodies are short-circuited.
Disclosure of Invention
In order to overcome the defect that the VR glasses body is short-circuited because cleaning liquid can flow downwards when the cleaning liquid is sprayed onto the lenses or is distributed on the lenses in a wet manner, the invention provides the head-mounted display device which is convenient to clean and can avoid the short circuit of the VR glasses body.
The technical proposal is as follows: a head mounted display device for facilitating cleaning, comprising: VR glasses main part and flexible area, the both sides of VR glasses main part all are connected with the flexible area in rotation; the protection pad is connected to the two telescopic belts; the lens barrel is provided with two lens barrels which are connected to two sides of the interior of the VR glasses main body; a barrel connected within the VR glasses body; the sliding rod is arranged in the cylinder body in a sliding sealing way; the glasses frame is connected to the sliding rod; the lenses are respectively connected to two sides of the lens frame, and the lenses correspond to the lens barrel; the face-pasting foam is connected to one side, close to the protection pad, of the VR glasses main body; the lens cone is positioned in the sealing ring, and the outer side of the lens cone is in contact with the inner wall of the sealing ring; the water absorption pad is connected to the two sealing rings, and is contacted with the inner wall of the VR glasses main body; a telescoping assembly for controlling lens extension and retraction.
Further, the telescoping assembly includes: the piston cylinder is connected to the top of the VR glasses main body, and is connected and communicated with the cylinder; the piston block is arranged in the piston cylinder in a sealing sliding manner; and the compression bar is connected to the piston block and penetrates through the top of the piston cylinder in a sliding manner.
Further, the head-mounted display device further comprises a clamping mechanism, wherein the clamping mechanism comprises: the first elastic piece is connected between the piston cylinder and the compression bar, and the compression bar is reset through the first elastic piece; the L-shaped blocks are provided with two L-shaped blocks which are respectively connected with two sides of the compression bar; the two clamping rods are connected to the piston cylinder and used for clamping the L-shaped block; and the second elastic piece is connected between the clamping rod and the piston cylinder, and the clamping rod is reset through the second elastic piece.
Further, an inclined surface is arranged on one side, facing the L-shaped block, of the clamping rod, so that the L-shaped block can move downwards to pass over the clamping rod.
Further, the chucking mechanism further includes: the two shifting levers are arranged and are respectively connected to the two clamping levers.
Further, the head-mounted display device further includes: the safety cover, it is connected VR glasses main part top, the depression bar is located in the safety cover, the safety cover is used for the protection the depression bar.
Further, the head-mounted display device further includes: the two indicating blocks are arranged and are respectively connected to two sides of the protective cover.
Further, the head-mounted display device further includes: and the nose pad is connected to the inner bottom of the VR glasses main body.
Further, the bottom of the water absorption pad is provided with a containing groove for the nose pad to pass through.
Further, the face foam can be detached.
The invention has the beneficial effects that: 1. according to the invention, the VR glasses body can be worn on the head through the telescopic belt and the protective pad, then the VR glasses body starts to be used, the piston block can be driven to move downwards by pressing the pressure lever downwards, so that air in the piston cylinder enters the cylinder, the air pushes the slide rod to move forwards, the lenses extend out of the VR glasses body, the lenses are convenient to clean, the lens barrel can be sealed by the sealing ring, cleaning liquid can be absorbed by the water absorbing pad, and the cleaning liquid is prevented from entering the VR glasses body, so that the short circuit of the VR glasses body can be avoided.
2. When the pressure lever moves downwards, the clamping rod can clamp the L-shaped block, so that the pressure lever is clamped, the lens cannot move, and the influence of the backward movement of the lens on cleaning is avoided.
3. The safety cover can protect the depression bar, avoids the dust to adhere to and leads to the depression bar to be difficult to the slip on the depression bar, and the safety cover can also avoid depression bar, clamping lever and driving lever to expose in the outside, improves the holistic pleasing to the eye degree of VR glasses main part.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic perspective view of the lens barrel and nose pad of the present invention.
Fig. 3 is a cross-sectional view of a VR glasses body of the present invention.
Fig. 4 is an exploded view of the barrel, barrel and slide bar of the present invention.
Fig. 5 is a schematic view showing a first perspective structure of the seal ring and the absorbent pad of the present invention.
FIG. 6 is a schematic view showing a second perspective structure of the seal ring and the absorbent pad of the present invention.
Fig. 7 is a schematic perspective view of the telescopic assembly of the present invention.
Fig. 8 is a cross-sectional view of a piston cylinder of the present invention.
Fig. 9 is a schematic view showing a first perspective structure of the chucking mechanism of the present invention.
Fig. 10 is a schematic view showing a second perspective structure of the chucking mechanism of the present invention.
Fig. 11 is a schematic perspective view of the L-shaped block and the clamping rod of the present invention.
Fig. 12 is a cross-sectional view of the protective cover of the present invention.
Fig. 13 is an enlarged view of section a of fig. 12 in accordance with the present invention.
Reference numerals illustrate: 1. VR glasses main part, 2, telescopic band, 3, protection pad, 4, lens cone, 5, barrel, 6, slide bar, 7, mirror holder, 8, lens, 81, face bubble cotton, 82, sealing ring, 83, absorbent pad, 91, piston cylinder, 92, piston piece, 93, depression bar, 101, elastic component one, 102, L shape piece, 103, clamping lever, 104, elastic component two, 105, driving lever, 13, protection cover, 14, indicating block, 15, nose pad.
Detailed Description
The invention is described in further detail below with reference to the drawings and the detailed description, but does not limit the scope of protection and the application of the invention.
Example 1: as shown in fig. 1-8, a wear-type display device convenient to clean, including VR glasses main part 1, telescopic band 2, protection pad 3, barrel 4, barrel 5, slide bar 6, mirror holder 7, lens 8, face bubble cotton 81, sealing ring 82, water absorption pad 83 and expansion assembly, VR glasses main part 1 both sides all rotate and are connected with telescopic band 2, two telescopic band 2 front ends are connected with protection pad 3 jointly, the left and right sides of rear side all is connected with barrel 4 in the VR glasses main part 1, be connected with barrel 5 in the middle of VR glasses main part 1 rear side upper portion, sealed sliding is equipped with slide bar 6 in the barrel 5, slide bar 6 front end is connected with mirror holder 7, mirror holder 7 both sides are embedded to be connected with lens 8, lens 8 and barrel 4 correspond, VR glasses main part 1 front side is connected with face bubble cotton 81, face bubble cotton 81 can be dismantled, the left and right sides of mirror holder 7 rear side all is connected with sealing ring 82, 4 is located sealing ring 82, and the outer side and sealing ring 82 is connected with water absorption pad 83 jointly, and VR glasses main part 8 are stretched out and the expansion assembly is used in the extension control of VR glasses main part 8.
As shown in fig. 7 and 8, the telescopic assembly comprises a piston cylinder 91, a piston block 92 and a compression rod 93, wherein the piston cylinder 91 is connected to the top of the vr glasses main body 1 in an embedded manner, the bottom of the piston cylinder 91 is connected and communicated with the cylinder 5, the piston block 92 is arranged in the piston cylinder 91 in a sealing sliding manner, the compression rod 93 is connected to the top of the piston block 92, and the compression rod 93 slidably penetrates through the top of the piston cylinder 91.
As shown in fig. 2, the head-mounted display device further includes a nose pad 15, the nose pad 15 is connected to the middle of the front side of the inner bottom of the vr glasses main body 1, and a receiving slot for the nose pad 15 to pass through is provided at the bottom of the water absorbing pad 83.
A user wears the VR glasses body 1 on the head through the telescopic belt 2 and the protective pad 3, the protective pad 3 is attached to the back brain of the user, the face attaching foam 81 is contacted with the face of the user, the VR glasses body 1 is prevented from extruding the head of the user, the comfort level of the user is improved, eyes of the user correspond to the two lenses 8, then the VR glasses body 1 starts to be used, the nose pads 15 are attached to the nose of the user, the stability of the VR glasses body 1 can be improved, when the lenses 8 need to be cleaned, the user removes the VR glasses body 1, then presses the pressing rod 93 downwards to drive the piston block 92 to move downwards, the piston block 92 pushes air in the piston cylinder 91, the air in the piston cylinder 91 enters the cylinder 5, the air pushes the sliding rod 6 to move forwards, the sliding rod 6 drives the glasses frame 7 to move forwards, the mirror holder 7 drives lens 8 and moves forward, make lens 8 follow VR glasses main part 1 and stretch out, the convenience is clean lens 8, mirror holder 7 can also drive sealing ring 82 and absorbent pad 83 and move forward, sealing ring 82 can seal lens cone 4, absorbent pad 83 can absorb the cleaning solution, avoid the cleaning solution to get into VR glasses main part 1, thereby can avoid VR glasses main part 1 short circuit, after the lens 8 is clean, upwards pulling depression bar 93, drive piston block 92 upward movement, inhale the piston jar 91 with the air in the barrel 5, make slide bar 6 backward movement, slide bar 6 drives mirror holder 7 backward movement, thereby drive lens 8, sealing ring 82 and absorbent pad 83 backward movement, retract lens 8 in VR glasses main part 1, the face-fitting foam 81 can be dismantled, the convenience is clean and change face-fitting foam 81.
Example 2: on the basis of embodiment 1, as shown in fig. 9-11, the head-mounted display device further comprises a clamping mechanism, the clamping mechanism comprises a first elastic member 101, an L-shaped block 102, a clamping rod 103 and a second elastic member 104, the first elastic member 101 is sleeved on the pressing rod 93, two ends of the first elastic member 101 are respectively connected with the piston cylinder 91 and the pressing rod 93, the first elastic member 101 is a spring, the front side and the rear side of the upper portion of the pressing rod 93 are respectively connected with the L-shaped block 102, the clamping rod 103 is slidably arranged on the front side and the rear side of the top of the piston cylinder 91, an inclined plane is arranged on one side, facing the L-shaped block 102, of the clamping rod 103 so that the L-shaped block 102 can move downwards to cross the clamping rod 103, a second elastic member 104 is connected between the clamping rod 103 and the piston cylinder 91, and the second elastic member 104 is a spring.
As shown in fig. 10, the clamping mechanism further includes a shift lever 105, and ends of the two clamping levers 103, which are far away from each other, are connected with the shift lever 105.
As shown in fig. 1, 12 and 13, the head-mounted display device further includes a protective cover 13, and the protective cover 13 is connected to the middle of the top of the vr glasses main body 1, and the compression bar 93 is located in the protective cover 13.
As shown in fig. 1 and 13, the head-mounted display device further includes an indication block 14, and the left and right sides of the lower portion of the protective cover 13 are connected with the indication block 14.
The protection cover 13 can protect the pressure lever 93, avoid the dust to adhere to and lead to the pressure lever 93 to be difficult to slide on the pressure lever 93, and can avoid the pressure lever 93, clamping lever 103 and driving lever 105 to expose in the outside, improve the holistic pleasing to the eye degree of VR glasses main part 1, when user presses down pressure lever 93, the protection cover 13 can take place deformation, first 101 compression of elastic component, pressure lever 93 can drive L shape piece 102 and move down, L shape piece 102 can with the inclined plane contact on clamping lever 103, and promote clamping lever 103, make two clamping levers 103 remove to the direction that is close to each other, elastic component two 104 stretch, when L shape piece 102 passes clamping lever 103, under the effect of elastic component two 104, two clamping levers 103 remove to the direction that is kept away from each other, block 102, thereby block pressure lever 93, make lens 8 unable removal, avoid lens 8 to move backward and influence cleaning, when user unclamp pressure lever 93, the original state of protection cover 13 resumes, after the lens 8 cleaning is accomplished, the position that the indicator piece 14 can instruct driving lever 105, the user only need to extrude two indicator pieces 14, and make two indicator pieces 103, make two clamping levers 103 move to the direction that two clamping levers 103 are close to each other, two elastic component 102 are kept away from each other, and then stretch to the elastic component 102 is kept away from each other, and elastic component 102 moves down, and then stretch two clamping levers 102 move to the direction that is kept away from each other, so that the elastic component is kept away from each other, and the elastic component is moved down.
The foregoing has outlined rather broadly the more detailed description of the present application, wherein specific examples have been provided to illustrate the principles and embodiments of the present application, the description of the examples being provided solely to assist in the understanding of the method of the present application and the core concepts thereof; meanwhile, as those skilled in the art will have modifications in the specific embodiments and application scope in accordance with the ideas of the present application, the present description should not be construed as limiting the present application in view of the above.
Claims (8)
1. A head mounted display device for facilitating cleaning, comprising:
the pair of VR glasses comprises a VR glasses body (1) and a telescopic belt (2), wherein the telescopic belt (2) is rotationally connected to two sides of the VR glasses body (1);
a protection pad (3) connected to the two stretchable bands (2);
the lens barrels (4) are arranged, and are connected to two sides of the interior of the VR glasses main body (1);
a cylinder (5) connected to the VR glasses body (1);
a slide bar (6) which is arranged in the cylinder body (5) in a sliding sealing way;
a frame (7) connected to the slide bar (6);
two lenses (8) are arranged and are respectively connected to two sides of the lens frame (7), and the lenses (8) correspond to the lens barrel (4);
the face-attached foam (81) is connected to one side, close to the protection pad (3), of the VR glasses main body (1);
the lens cone (4) is positioned in the sealing ring (82), and the outer side of the lens cone (4) is in contact with the inner wall of the sealing ring (82);
a water absorbing pad (83) connected to the two seal rings (82), the water absorbing pad (83) being in contact with the inner wall of the VR glasses body (1);
a telescopic assembly for controlling the extension and retraction of the lens (8);
the telescoping assembly includes:
the piston cylinder (91) is connected to the top of the VR glasses main body (1), and the piston cylinder (91) is connected and communicated with the cylinder body (5);
a piston block (92) which is provided in the piston cylinder (91) in a sealing sliding manner;
a compression bar (93) connected to the piston block (92), the compression bar (93) slidably penetrating the top of the piston cylinder (91);
still including clamping mechanism, clamping mechanism includes:
an elastic member I (101) connected between the piston cylinder (91) and the pressing rod (93), the pressing rod (93) being restored by the elastic member I (101);
the L-shaped blocks (102) are provided with two blocks which are respectively connected with two sides of the compression bar (93);
two clamping rods (103) which are connected to the piston cylinder (91), wherein the clamping rods (103) are used for clamping the L-shaped block (102);
and the second elastic piece (104) is connected between the clamping rod (103) and the piston cylinder (91), and the clamping rod (103) is reset through the second elastic piece (104).
2. A head mounted display device according to claim 1, wherein the side of the clamping bar (103) facing the L-shaped block (102) is provided with a bevel to enable the L-shaped block (102) to move downwards past the clamping bar (103).
3. The head mounted display device for facilitating cleaning of claim 2, wherein the chucking mechanism further comprises:
the two shifting levers (105) are arranged, and the two shifting levers (105) are respectively connected to the two clamping levers (103).
4. A head mounted display device for facilitating cleaning as defined in claim 3, further comprising:
the protective cover (13) is connected to the top of the VR glasses main body (1), the pressing rod (93) is located in the protective cover (13), and the protective cover (13) is used for protecting the pressing rod (93).
5. The head mounted display device for facilitating cleaning of claim 4, further comprising:
the two indicating blocks (14) are arranged, and the two indicating blocks (14) are respectively connected to two sides of the protective cover (13).
6. A head mounted display device for facilitating cleaning as defined in claim 1, further comprising:
and the nose pad (15) is connected to the inner bottom of the VR glasses body (1).
7. The head-mounted display device convenient to clean according to claim 6, wherein the bottom of the water absorbing pad (83) is provided with a containing groove for the nose pad (15) to pass through.
8. A head mounted display device for facilitating cleaning according to claim 1, wherein the face foam (81) is detachable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311576364.XA CN117289471B (en) | 2023-11-24 | 2023-11-24 | Head-mounted display device convenient to clean |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311576364.XA CN117289471B (en) | 2023-11-24 | 2023-11-24 | Head-mounted display device convenient to clean |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117289471A CN117289471A (en) | 2023-12-26 |
| CN117289471B true CN117289471B (en) | 2024-02-02 |
Family
ID=89244744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311576364.XA Active CN117289471B (en) | 2023-11-24 | 2023-11-24 | Head-mounted display device convenient to clean |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117289471B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108061970A (en) * | 2018-01-31 | 2018-05-22 | 马鞍山圣德力智能科技有限公司 | It is a kind of that there is dust-proof and cleaning function AR equipment for engineering design |
| CN108957762A (en) * | 2018-08-29 | 2018-12-07 | 视悦光学有限公司 | A kind of VR eyeglass for the cleaning, drying that can deoil automatically |
| CN110716309A (en) * | 2019-10-12 | 2020-01-21 | 广州林电科技有限公司 | Convenient VR glasses with clean function |
| CN114602859A (en) * | 2022-02-18 | 2022-06-10 | 王康莹 | Virtual reality VR glasses cleaning device |
| CN218585100U (en) * | 2022-10-25 | 2023-03-07 | 杭州天界数字科技有限公司 | VR glasses |
-
2023
- 2023-11-24 CN CN202311576364.XA patent/CN117289471B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108061970A (en) * | 2018-01-31 | 2018-05-22 | 马鞍山圣德力智能科技有限公司 | It is a kind of that there is dust-proof and cleaning function AR equipment for engineering design |
| CN108957762A (en) * | 2018-08-29 | 2018-12-07 | 视悦光学有限公司 | A kind of VR eyeglass for the cleaning, drying that can deoil automatically |
| CN110716309A (en) * | 2019-10-12 | 2020-01-21 | 广州林电科技有限公司 | Convenient VR glasses with clean function |
| CN114602859A (en) * | 2022-02-18 | 2022-06-10 | 王康莹 | Virtual reality VR glasses cleaning device |
| CN218585100U (en) * | 2022-10-25 | 2023-03-07 | 杭州天界数字科技有限公司 | VR glasses |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117289471A (en) | 2023-12-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211264000U (en) | Lens belt cleaning device | |
| CN113741033A (en) | AR glasses convenient to clean lens | |
| CN117289471B (en) | Head-mounted display device convenient to clean | |
| CN212181190U (en) | Combined glasses | |
| CN206115068U (en) | Dust removal lens | |
| CN216387614U (en) | Glasses with cleaning function | |
| CN214896026U (en) | VR basketball glasses | |
| CN211603760U (en) | Antifog goggles | |
| CN213156931U (en) | Medical goggles capable of scraping fog | |
| CN211673422U (en) | Dust removal glasses show cupboard has | |
| CN212089938U (en) | Medical goggles | |
| CN219516802U (en) | Eye protection device with defogging structure | |
| CN214157672U (en) | Mechanical quick defogging goggles device | |
| CN111113194A (en) | Device and method for polishing corners of hard corneal plastic endoscope | |
| CN214490047U (en) | Grinding needle for jade carving | |
| CN220070526U (en) | Filtering face mask | |
| CN212730141U (en) | Defogging type goggles | |
| CN215425487U (en) | Windscreen wiper formula defogging safety glasses | |
| CN110262061B (en) | Anti-impact glasses | |
| CN215867359U (en) | Virtual glasses of wear-type | |
| CN219354372U (en) | Goggles for oral examination | |
| CN212009247U (en) | Optical lens capable of preventing foreign matter from invading | |
| CN211535137U (en) | Manual eye-protection spectacles that do promptly | |
| CN219501933U (en) | Folding diving glasses | |
| CN213004562U (en) | Burnishing device is used in glasses frame processing |
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 |