CN114137727A - Pneumatic pupil distance adjusting device and intelligent head-mounted equipment - Google Patents
Pneumatic pupil distance adjusting device and intelligent head-mounted equipment Download PDFInfo
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- CN114137727A CN114137727A CN202111314997.4A CN202111314997A CN114137727A CN 114137727 A CN114137727 A CN 114137727A CN 202111314997 A CN202111314997 A CN 202111314997A CN 114137727 A CN114137727 A CN 114137727A
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- 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
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Abstract
The invention discloses an air pressure pupil distance adjusting device and an intelligent head-mounted device, wherein the air pressure pupil distance adjusting device comprises a pupil distance adjusting cylinder and an operating cylinder; the pupil distance adjusting cylinder comprises a fixed cylinder body, an adjusting cylinder body which is hermetically and slidably arranged in the fixed cylinder body, and an adjusting piston rod which is hermetically and slidably arranged in the adjusting cylinder body; the two ends of the adjusting cylinder body extend out of the fixed cylinder body, and the rod part of the adjusting piston rod extends out of the adjusting cylinder body; under the drive of the control cylinder, the adjusting piston rod moves forward relative to the fixed cylinder body, and meanwhile the adjusting cylinder body moves backward relative to the fixed cylinder body; and the relative movement distance of the adjusting piston rod is equal to the relative movement distance of the adjusting cylinder body. The intelligent head-mounted device comprises a main body, a lens module and an air pressure pupil distance adjusting device. The invention can not only realize the adjustment of the interpupillary distance; and the pupil distance adjustment is not easy to fail due to the huge impact force generated in the falling process, and the stability is strong.
Description
Technical Field
The invention belongs to the technical field of head-mounted display, and particularly relates to an air pressure interpupillary distance adjusting device and intelligent head-mounted equipment.
Background
With the rapid development of science and technology, the head-mounted display technology is applied to various industries, and intelligent head-mounted equipment such as VR and AR is gradually popularized.
Most VR/AR etc. intelligence head-mounted devices all have interpupillary distance adjustment mechanism in the market at present, but most interpupillary distance adjustment mechanism is the rack and pinion structure. Because the gear and rack structure is hard connection and poor in stability, the pupil distance adjusting mechanism is very likely to be out of work due to the huge impact force generated in the falling process of the equipment, such as tooth jumping, rack or gear deformation and the like, and the pupil distance adjustment in use is influenced; and present interpupillary distance adjustment mechanism produces the noise because of rack and pinion meshing when adjusting, has influenced user's wearing and has experienced.
Disclosure of Invention
The invention aims to overcome at least one defect in the prior art, and provides an air pressure pupil distance adjusting device and intelligent head-mounted equipment, which can realize the adjustment of the pupil distance and have strong stability and low noise.
In order to solve the problems in the prior art, the embodiment of the invention provides an air pressure pupil distance adjusting device, which comprises a pupil distance adjusting cylinder and a control cylinder, wherein the control cylinder is used for driving the pupil distance adjusting cylinder to perform bidirectional synchronous equidistance expansion;
the pupil distance adjusting cylinder comprises a fixed cylinder body, an adjusting cylinder body which is hermetically and slidably arranged in the fixed cylinder body and an adjusting piston rod which is hermetically and slidably arranged in the adjusting cylinder body; the two ends of the adjusting cylinder body extend out of the fixed cylinder body, and the rod part of the adjusting piston rod extends out of the adjusting cylinder body;
under the drive of the control cylinder, the adjusting piston rod moves in a forward direction relative to the fixed cylinder body, and meanwhile, the adjusting cylinder body moves in a reverse direction relative to the fixed cylinder body; and the movement distance of the adjusting piston rod relative to the fixed cylinder is equal to the movement distance of the adjusting cylinder relative to the fixed cylinder.
Further, the control cylinder comprises a control cylinder body and a control piston rod which is hermetically and slidably arranged in the control cylinder body; the rod part of the control piston rod extends out of the control cylinder body, the piston head part of the control piston rod divides an inner cavity of the control cylinder body into a first cavity and a second cavity which are mutually independent, and a first air port communicated with the first cavity and a second air port communicated with the second cavity are arranged on the control cylinder body.
Further, the adjusting cylinder is hermetically and slidably mounted in the fixed cylinder by means of a sealing and separating structure; the sealing separation structure separates the inner cavity of the fixed cylinder body into a third cavity and a fourth cavity which are independent of each other, and a third air port communicated with the first air port and the fourth cavity is formed in the fixed cylinder body; the piston head of the adjusting piston rod divides the inner cavity of the adjusting cylinder body into a fifth cavity and a sixth cavity which are independent from each other, and the adjusting cylinder body is provided with a fourth air port communicated with the second air port and the fifth cavity and a fifth air port communicated with the sixth cavity and the third cavity.
Further, the cross-sectional area of the inner cavity of the manipulation cylinder is equal to the cross-sectional area of the inner cavity of the adjustment cylinder, and the cross-sectional area of the inner cavity of the fixed cylinder is equal to three times the cross-sectional area of the inner cavity of the manipulation cylinder.
Furthermore, sealed partition structure includes the spiral shell dress and is in adjust the spacer ring on the cylinder body, be equipped with first sealing washer in the annular of spacer ring.
Further, the first air port and the third air port are connected through a first air pipe, and the second air port and the fourth air port are connected through a second air pipe; at least the second air pipe is a flexible air pipe.
Further, the control cylinder body, the fixed cylinder body and the adjusting cylinder body comprise cylinder barrels and cylinder covers which are arranged at one ends of the cylinder barrels in a screwed mode.
Further, the other end of the cylinder barrel of the control cylinder body is provided with a second sealing ring which is sealed and in sliding fit with the rod part of the control piston rod; and a third sealing ring which is sealed and in sliding fit with the cylinder barrel of the control cylinder body is arranged on the piston head of the control piston rod in an annular mode.
Further, the other end of the cylinder barrel of the fixed cylinder body and the cylinder cover are respectively provided with a fourth sealing ring which is sealed and in sliding fit with the cylinder barrel of the adjusting cylinder body;
a fifth sealing ring which is sealed and in sliding fit with the cylinder barrel of the adjusting cylinder body is arranged on the piston head of the adjusting piston rod in a surrounding mode; the other end of the cylinder barrel of the adjusting cylinder body is closed, and a sixth sealing ring which is sealed and in sliding fit with the rod part of the adjusting piston rod is arranged on the cylinder cover.
The embodiment of the invention also provides intelligent head-mounted equipment which comprises a main body and two lens modules, wherein the two lens modules are slidably arranged on the main body; the device also comprises the air pressure interpupillary distance adjusting device;
the control cylinder and the fixed cylinder body are installed on the main body, and the adjusting cylinder body and the adjusting piston rod are respectively connected with the corresponding lens module.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
the air pressure pupil distance adjusting device comprises a pupil distance adjusting cylinder and an operation and control cylinder for driving the pupil distance adjusting cylinder to perform bidirectional synchronous equidistance expansion and contraction; the pupil distance adjusting cylinder comprises a fixed cylinder body, an adjusting cylinder body which is hermetically and slidably arranged in the fixed cylinder body, and an adjusting piston rod which is hermetically and slidably arranged in the adjusting cylinder body; the two ends of the adjusting cylinder body extend out of the fixed cylinder body, and the rod part of the adjusting piston rod extends out of the adjusting cylinder body; under the drive of the control cylinder, the adjusting piston rod moves forward relative to the fixed cylinder body, and meanwhile the adjusting cylinder body moves backward relative to the fixed cylinder body; and the movement distance of the adjusting piston rod relative to the fixed cylinder is equal to the movement distance of the adjusting cylinder relative to the fixed cylinder. The intelligent head-mounted equipment comprises a main body, two lens modules and an air pressure pupil distance adjusting device, wherein the two lens modules are slidably arranged on the main body; the adjusting cylinder body and the adjusting piston rod are respectively connected with the corresponding lens module. When the pupil distance is adjusted, the user operates the control cylinder and the pupil distance adjusting cylinder to move, and the two lens modules move synchronously, reversely and at the same distance under the driving of the adjusting cylinder body and the adjusting piston rod, so that the stepless mute adjustment of the pupil distance is realized.
In conclusion, the invention can not only realize the adjustment of the interpupillary distance; the pupil distance adjustment is not easy to lose effectiveness and high in stability due to the fact that all the parts are not rigidly connected, and large friction noise caused by rigid connection cannot be generated in the adjustment process; the wearing requirements of different people are met.
Drawings
FIG. 1 is a schematic structural diagram of an air pressure interpupillary distance adjusting device according to the present invention;
FIG. 2 is an exploded view of the structure of FIG. 1;
FIG. 3 is a cross-sectional view of the steering cylinder of FIG. 1;
fig. 4 is a sectional view of the interpupillary distance adjusting cylinder of fig. 1;
fig. 5 is a first state reference diagram when the pneumatic pupil distance adjusting device adjusts the pupil distance;
fig. 6 is a second state reference diagram when the interpupillary distance adjusting device performs interpupillary distance adjustment;
fig. 7 is a third state reference diagram (i.e., a cross-sectional view of fig. 1) when the pneumatic interpupillary distance adjusting device adjusts the interpupillary distance;
in the figure: 1-control cylinder, 11-control cylinder, 111-first cylinder, 112-first cylinder head, 113-first chamber, 114-second chamber, 115-first port, 116-second port, 12-control piston rod, 13-first gas tube, 14-second gas tube, 2-seal separation structure, 21-separation ring, 22-first seal ring, 3-interpupillary distance adjusting cylinder, 31-fixed cylinder, 311-second cylinder, 312-second cylinder head, 313-third chamber, 314-fourth chamber, 315-third port, 32-adjusting cylinder, 321-third cylinder, 322-third cylinder head, 323-fifth chamber, 324-sixth chamber, 325-fourth port, 326-fifth port, 33-adjusting piston rod, 4-second sealing ring, 5-third sealing ring, 6-fourth sealing ring, 7-fifth sealing ring, 8-sixth sealing ring and 9-air pipe sealing joint.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
By figure 1, this embodiment discloses an atmospheric pressure interpupillary distance adjusting device, specifically includes interpupillary distance adjusting cylinder 3 and is used for driving interpupillary distance adjusting cylinder 3 to carry out the flexible cylinder 1 of controlling of two-way synchronization equidistance. The interpupillary distance adjusting cylinder 3 comprises a fixed cylinder 31, an adjusting cylinder 32 which is hermetically and slidably arranged in the fixed cylinder 31, and an adjusting piston rod 33 which is hermetically and slidably arranged in the adjusting cylinder 32; both ends of the adjusting cylinder body 32 extend out of the fixed cylinder body 31, and the rod part of the adjusting piston rod 33 extends out of the adjusting cylinder body 32; under the driving of the control cylinder 1, the adjusting piston rod 33 moves in a forward direction relative to the fixed cylinder 31, and the adjusting cylinder 32 moves in a reverse direction relative to the fixed cylinder 31; and the moving distance of the adjusting piston rod 33 with respect to the fixed cylinder 31 is equal to the moving distance of the adjusting cylinder 32 with respect to the fixed cylinder 31.
This embodiment also discloses an intelligence head-mounted apparatus, specifically includes main part, two slidable mounting lens module and foretell atmospheric pressure interpupillary distance adjusting device in the main part, and fixed cylinder body 31 is fixed in the main part with controlling cylinder 1, is equipped with in the main part and dodges the mouth. The adjusting cylinder 32 and the adjusting piston rod 33 are respectively connected to the corresponding lens modules. When carrying out interpupillary distance adjustment, user operation controls cylinder 1, interpupillary distance adjusting cylinder 3 action, under the drive of adjusting cylinder body 32 and adjusting piston rod 33, two lens module synchronous, reverse, with apart from the motion to realize the infinitely variable control of interpupillary distance and keep the silence in the adjustment process.
As shown in fig. 1, 2 and 3, in the present embodiment, the control cylinder 1 includes a control cylinder 11 and a control piston rod 12 (including a rod portion and a piston head portion) hermetically and slidably mounted in the control cylinder 11; the control cylinder 11 is a split structure, and includes a first cylinder 111 and a first cylinder head 112 screwed to a first end of the first cylinder 111. The rod of the control piston rod 12 extends out of the second end of the first cylinder 111 in the control cylinder 11 and passes through the avoidance opening in the main body (for user operation), the piston head of the control piston rod 12 divides the inner cavity of the control cylinder 11 (i.e. the space enclosed by the first cylinder 111 and the first cylinder head 112) into a first chamber 113 and a second chamber 114 which are independent of each other, and the first cylinder 111 in the control cylinder 11 is provided with a first air port 115 communicated with the first chamber 113 and a second air port 116 communicated with the second chamber 114.
As shown in fig. 1, 2 and 4, the adjusting cylinder 32 is hermetically and slidably mounted in the fixed cylinder 31 by means of the sealing partition structure 2; the sealing separation structure 2 includes a separation ring 21 screwed on the third cylinder 321 of the adjusting cylinder 32, and a first sealing ring 22 is disposed in a ring groove of the separation ring 21. The fixed cylinder 31 is a split structure, and includes a second cylinder 311 and a second cylinder cover 312 screwed to a first end of the second cylinder 311; the adjustment cylinder 32 is also a separate structure, and includes a third cylinder 321 and a third cylinder cover 322 screwed to a first end of the third cylinder 321. The sealing separation structure 2 separates an inner cavity (i.e., a space surrounded by the second cylinder 311 and the second cylinder cover 312) of the fixed cylinder 31 into a third chamber 313 and a fourth chamber 314 which are independent from each other, and a third air port 315 which is communicated with both the first air port 115 and the fourth chamber 314 is arranged on the second cylinder 311 in the fixed cylinder 31. The piston head of the adjusting piston rod 33 divides the inner chamber of the adjusting cylinder 32 (i.e., the space surrounded by the third cylinder 321 and the third cylinder cover 322) into a fifth chamber 323 and a sixth chamber 324 which are independent of each other, and the third cylinder 321 in the adjusting cylinder 32 is provided with a fourth air port 325 communicating with the second air port 116 and the fifth chamber 323, and a fifth air port 326 communicating with both the sixth chamber 324 and the third chamber 313. Wherein the first air port 115 and the third air port 315 are connected by a first air pipe 13, and the second air port 116 and the fourth air port 325 are connected by a second air pipe 14; at least the second air pipe 14 is a flexible air pipe to reduce the influence of the structure on the position layout of the control cylinder 1 and avoid the influence of the drag on the movement of the adjusting cylinder body 32 and the adjusting piston rod 33 on the accuracy of interpupillary distance adjustment.
Preferably, the cross-sectional area of the bore of the first cylinder 111 and the cross-sectional area of the bore of the third cylinder 321 are equal, and the cross-sectional area of the bore of the second cylinder 311 is equal to three times the cross-sectional area of the bore of the first cylinder 111. Further preferably, the first cylinder 111 in the control cylinder 11, the second cylinder 311 in the fixed cylinder 31 and the third cylinder 321 in the adjusting cylinder 32 are all cylindrical structures; the inner diameter of the first cylinder 111 and the inner diameter of the third cylinder 321 are both R, the inner diameter of the second cylinder 311 is R, and R √ 3R. The above design ensures that the movement distance of the adjusting piston rod 33 relative to the fixed cylinder 31 is equal to the movement distance of the adjusting cylinder 32 relative to the fixed cylinder 31; other arrangements are possible in addition to this, as long as it is ensured that the movement distance of the adjusting piston rod 33 relative to the fixed cylinder 31 is equal to the movement distance of the adjusting cylinder 32 relative to the fixed cylinder 31.
In order to further improve the effectiveness and accuracy of the interpupillary distance adjustment, it is necessary to ensure the airtightness of the manipulation cylinder 1 and the interpupillary distance adjustment cylinder 3. Therefore, the present embodiment further optimizes the above structure:
a second sealing ring 4 which is in sealing and sliding fit with the rod part of the control piston rod 12 is arranged at the second end part of the first cylinder 111 in the control cylinder 11; a third sealing ring 5 which is in sealing and sliding fit with the first cylinder 111 in the control cylinder 11 is arranged on the piston head of the control piston rod 12 in a surrounding manner.
A fourth seal ring 6 that is in sealing and sliding engagement with the third cylinder 321 of the adjustment cylinder 32 is provided on both the second end portion of the second cylinder 311 and the second cylinder head 312 of the fixed cylinder 31.
A fifth sealing ring 7 which is in sealing and sliding fit with the third cylinder barrel 321 in the adjusting cylinder body 32 is annularly arranged at the piston head of the adjusting piston rod 33; the second end of the third cylinder 321 in the adjusting cylinder 32 is closed, and the third cylinder cover 322 is provided with a sixth sealing ring 8 which is in sealing and sliding fit with the rod part of the adjusting piston rod 33.
The process of performing the pupil distance increasing adjustment is briefly explained based on the above structure as follows:
as shown in fig. 5 to 7, by pushing the control piston rod 12 on the control cylinder 1 (the direction of the pushing force F is leftward in the figures), the volumes of the first chamber 113 and the second chamber 114 are changed, the volume of the first chamber 113 is reduced, the discharged gas enters the fourth chamber 314 through the first gas pipe 13, the volume of the fourth chamber 314 is increased, and the pupil distance adjusting cylinder 3 is driven to move left as a whole; accordingly, the volume of the third chamber 313 is reduced, the discharged gas enters the sixth chamber 324 through the fifth gas port 326, the volume of the sixth chamber 324 is increased, and the adjusting piston rod 33 is driven to move to the right; accordingly, the volume of the fifth chamber 323 is reduced, and the exhaust gas is supplemented into the second chamber 114 through the second gas pipe 14, so that the gas circulates in the sealed space. If the movement distance of the control piston rod 12 with respect to the control cylinder 11 is H, the movement distance of the adjusting piston rod 33 with respect to the adjusting cylinder 32 is H, and the movement distance of the adjusting cylinder 32 with respect to the fixed cylinder 31 is 0.5H, then the movement distance of the adjusting piston rod 33 with respect to the fixed cylinder 31 is 0.5H, thereby achieving the two-way synchronous same-distance expansion and contraction of the interpupillary distance adjusting cylinder 3. Wherein Lmax-Lmin is the stepless adjustable range of interpupillary distance. The process of pupil distance reduction adjustment is the reverse, and will not be described herein. No noise is generated during the whole adjusting process.
In conclusion, the invention can not only realize the adjustment of the interpupillary distance; the pupil distance adjustment is not easy to lose effectiveness and high in stability due to the fact that all the parts are not rigidly connected, and large friction noise caused by rigid connection cannot be generated in the adjustment process; the wearing requirements of different people are met.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. An air pressure interpupillary distance adjusting device is characterized by comprising an interpupillary distance adjusting cylinder and a control cylinder for driving the interpupillary distance adjusting cylinder to perform bidirectional synchronous equidistance expansion;
the pupil distance adjusting cylinder comprises a fixed cylinder body, an adjusting cylinder body which is hermetically and slidably arranged in the fixed cylinder body and an adjusting piston rod which is hermetically and slidably arranged in the adjusting cylinder body; the two ends of the adjusting cylinder body extend out of the fixed cylinder body, and the rod part of the adjusting piston rod extends out of the adjusting cylinder body;
under the drive of the control cylinder, the adjusting piston rod moves in a forward direction relative to the fixed cylinder body, and meanwhile, the adjusting cylinder body moves in a reverse direction relative to the fixed cylinder body; and the movement distance of the adjusting piston rod relative to the fixed cylinder is equal to the movement distance of the adjusting cylinder relative to the fixed cylinder.
2. The pneumatic interpupillary distance adjusting device of claim 1, wherein the control cylinder comprises a control cylinder body and a control piston rod hermetically and slidably mounted in the control cylinder body; the rod part of the control piston rod extends out of the control cylinder body, the piston head part of the control piston rod divides an inner cavity of the control cylinder body into a first cavity and a second cavity which are mutually independent, and a first air port communicated with the first cavity and a second air port communicated with the second cavity are arranged on the control cylinder body.
3. The pneumatic interpupillary distance adjusting device of claim 2, wherein said adjusting cylinder is sealed and slidably mounted in said fixed cylinder by means of a sealing and separating structure; the sealing separation structure separates the inner cavity of the fixed cylinder body into a third cavity and a fourth cavity which are independent of each other, and a third air port communicated with the first air port and the fourth cavity is formed in the fixed cylinder body; the piston head part of the adjusting piston rod divides the inner cavity of the adjusting cylinder body into a fifth chamber and a sixth chamber which are mutually independent, and the adjusting cylinder body is provided with a fourth air port communicated with the second air port and the fifth chamber and a fifth air port communicated with the sixth chamber and the third chamber.
4. The pneumatic interpupillary distance adjusting device of claim 3, wherein the cross-sectional area of the inner cavity of the control cylinder is equal to the cross-sectional area of the inner cavity of the adjusting cylinder, and the cross-sectional area of the inner cavity of the fixed cylinder is equal to three times the cross-sectional area of the inner cavity of the control cylinder.
5. The pneumatic interpupillary distance adjusting device of claim 3, wherein the sealing separation structure comprises a separation ring screwed on the adjusting cylinder, and a first sealing ring is arranged in a ring groove of the separation ring.
6. The pneumatic interpupillary distance adjusting device of claim 3, wherein the first air port and the third air port are connected by a first air tube, and the second air port and the fourth air port are connected by a second air tube; at least the second air pipe is a flexible air pipe.
7. The pneumatic interpupillary distance adjusting device of claim 2, wherein said control cylinder, said fixed cylinder and said adjusting cylinder each comprise a cylinder and a cylinder cover screwed to one end of said cylinder.
8. The pneumatic interpupillary distance adjusting device according to claim 7, wherein a second sealing ring is disposed at the other end of the cylinder of the control cylinder and is in sliding fit with the rod of the control piston rod; and a third sealing ring which is sealed and in sliding fit with the cylinder barrel of the control cylinder body is arranged on the piston head of the control piston rod in an annular mode.
9. The pneumatic interpupillary distance adjusting device according to claim 7, wherein the other end of the cylinder of the fixed cylinder and the cylinder cover are provided with fourth sealing rings which are sealed and in sliding fit with the cylinder of the adjusting cylinder;
a fifth sealing ring which is sealed and in sliding fit with the cylinder barrel of the adjusting cylinder body is arranged on the piston head of the adjusting piston rod in a surrounding mode; the other end of the cylinder barrel of the adjusting cylinder body is closed, and a sixth sealing ring which is sealed and in sliding fit with the rod part of the adjusting piston rod is arranged on the cylinder cover.
10. An intelligent head-mounted device comprises a main body and two lens modules which are slidably mounted on the main body; the pneumatic pupil distance adjusting device is characterized by further comprising the pneumatic pupil distance adjusting device as claimed in any one of claims 1 to 9;
the control cylinder and the fixed cylinder body are installed on the main body, and the adjusting cylinder body and the adjusting piston rod are respectively connected with the corresponding lens module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111314997.4A CN114137727A (en) | 2021-11-08 | 2021-11-08 | Pneumatic pupil distance adjusting device and intelligent head-mounted equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111314997.4A CN114137727A (en) | 2021-11-08 | 2021-11-08 | Pneumatic pupil distance adjusting device and intelligent head-mounted equipment |
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| CN114137727A true CN114137727A (en) | 2022-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111314997.4A Pending CN114137727A (en) | 2021-11-08 | 2021-11-08 | Pneumatic pupil distance adjusting device and intelligent head-mounted equipment |
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Cited By (3)
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| WO2023200637A1 (en) * | 2022-04-11 | 2023-10-19 | Snap Inc. | Intelligent actuated temple tips |
| WO2023200647A1 (en) * | 2022-04-11 | 2023-10-19 | Snap Inc. | Intelligent actuated nose bridge |
| WO2023200650A1 (en) * | 2022-04-11 | 2023-10-19 | Snap Inc. | Intelligent actuated and adjustable glasses nose pad arms |
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