CN220188812U

CN220188812U - BB ray apparatus focusing structure and AR glasses

Info

Publication number: CN220188812U
Application number: CN202321939419.4U
Authority: CN
Inventors: 彭煌煌; 胡增新
Original assignee: Zhejiang Shunwei Technology Co ltd
Current assignee: Zhejiang Shunwei Technology Co ltd
Priority date: 2023-07-21
Filing date: 2023-07-21
Publication date: 2023-12-15
Anticipated expiration: 2033-07-21

Abstract

The utility model provides a BB optical-mechanical focusing structure and AR glasses. This BB ray apparatus focusing structure includes: an upper cover assembly; the display component is arranged on one side of the upper cover component; the turning-back mirror group is arranged in a display light path of the display assembly; the focusing assembly is arranged on the upper cover assembly and can be connected with the display assembly in a transmission way, and the focusing assembly is used for driving the display assembly to move so as to be far away from or close to the foldback mirror group; and the limiting piece is arranged at one end of the focusing assembly, which is close to the display assembly, so as to limit the sliding travel of the display assembly. The BB optical machine focusing structure can limit the sliding travel of the display assembly through the limiting piece, and avoid the excessive adjustment of the focusing assembly, thereby causing the interference of the display assembly and the turning-back mirror group.

Description

BB ray apparatus focusing structure and AR glasses

Technical Field

The utility model relates to the technical field of BB optical machine focusing, in particular to a BB optical machine focusing structure and AR glasses.

Background

With the development of augmented reality technology, commercializable AR glasses are gradually designed and developed, wherein the AR glasses of the Birdbath scheme are the main research direction. The existing AR glasses of the Birdband scheme generally have a focusing function to adapt to users with different eyesight.

In the existing BB light machine focusing scheme, a scheme provides a BB light machine structure which drives a display screen support to slide through a gear structure, and the focal length of the BB light machine is adjusted by changing the distance between a display screen and a turning-back mirror group, so that a user can clearly see the display picture of the BB light machine. The main problem of this scheme lies in that current BB ray apparatus structure does not do too much restriction to the gliding stroke of display screen support, and gear structure does not have corresponding limit structure yet, and the display screen support can appear exceeding the maximum stroke and deviate from the risk at gliding in-process.

Disclosure of Invention

Based on this, it is necessary to provide a focusing structure of a BB optical machine for solving the problem that the display screen bracket is out of the maximum stroke and is at risk in the sliding process.

A BB optical bench focusing structure comprising:

an upper cover assembly;

the display component is arranged on one side of the upper cover component;

the turning-back mirror group is arranged in a display light path of the display assembly;

the focusing assembly is arranged on the upper cover assembly and is in transmission connection with the display assembly, and the focusing assembly is used for driving the display assembly to move so as to be far away from or close to the foldback mirror group; and

the limiting piece is arranged at one end, close to the display assembly, of the focusing assembly so as to limit the movement stroke of the display assembly.

In one embodiment, the focusing assembly includes a driving member rotatably disposed on the upper cover assembly, a matching member disposed on the display assembly, and a driven member disposed between the upper cover assembly and the display assembly, one end of the driven member is rotatably connected to the upper cover assembly, and the limiting member is disposed at the other end of the driven member; the mating member is threadably coupled to the follower.

In one embodiment, the matching piece is provided with a threaded hole, the driven piece comprises a screw rod part, the screw rod part is rotatably inserted into the threaded hole, and the limiting piece is fixedly arranged at one end of the screw rod part.

In one embodiment, the size of the limiting member is larger than the size of the threaded hole.

In one embodiment, the driving member includes a driving gear portion rotatably connected to the upper cover assembly, the driven member further includes a driven gear portion rotatably connected to the upper cover assembly, the screw portion is fixedly disposed on the driven gear portion, and the driving gear portion is engaged with the driven gear portion.

In one embodiment, the driving gear portion is a bevel gear structure and the driven gear portion is a bevel gear structure.

In one embodiment, the driving member further includes a thumb wheel portion and a connection portion connecting the thumb wheel portion and the driving gear portion, and the connection portion is rotatably inserted into the upper cover assembly, so that the thumb wheel portion is located at an outer side of the upper cover assembly, and the driving gear portion is located at an inner side of the upper cover assembly.

In one embodiment, the display assembly includes a sliding support fixedly connected to the matching piece, a display screen and a focusing lens, the sliding support is provided with a through mounting opening, the display screen is mounted on the sliding support and located on one side of the mounting opening away from the foldback mirror group, and the focusing lens is mounted on the sliding support and located on one side of the mounting opening close to the foldback mirror group.

In one embodiment, the mating member has a thickness greater than a thickness of the sliding bracket.

Further, the present utility model provides AR glasses comprising:

a glasses body; and

the BB light machine focusing structure according to any one of the above, wherein the BB light machine focusing structure is mounted on the glasses main body.

According to the BB optical machine focusing structure, the sliding travel of the display assembly can be limited through the limiting piece, and the display assembly and the turning-back mirror group are prevented from being interfered due to excessive adjustment of the focusing assembly.

Drawings

Fig. 1 is a schematic perspective view of a BB optical bench focusing structure according to an embodiment of the present utility model;

fig. 2 shows an exploded view of a BB optical bench focusing mechanism according to the above-described embodiment of the present utility model;

fig. 3 shows a schematic optical path diagram of a BB optical bench focusing structure according to the above embodiment of the present utility model;

fig. 4 is a schematic side view of a BB optical bench focusing mechanism according to the above embodiment of the present utility model;

fig. 5 shows a schematic side view of a focusing assembly of the BB optical bench focusing structure according to the above embodiment of the present utility model.

Reference numerals: 10. an upper cover assembly; 20. a display assembly; 21. a sliding support; 211. a mounting port; 22. a display screen; 23. a focusing lens; 30. a fold-back mirror group; 40. a focusing assembly; 41. a driving member; 411. a drive gear section; 412. a thumb wheel part; 413. a connection part; 42. a mating member; 421. a threaded hole; 43. a follower; 431. a screw portion; 432. a driven gear section; 50. and a limiting piece.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Specifically, referring to fig. 1 to 5, the present utility model provides a BB optical bench focusing structure, which may include an upper cover assembly 10, a display assembly 20, a fold mirror assembly 30, a focusing assembly 40, and a limiting member 50, wherein the display assembly 20 is disposed at one side of the upper cover assembly 10. The fold mirror assembly 30 is disposed in the display light path of the display assembly 20. The focusing assembly 40 is disposed on the upper cover assembly 10 and is drivingly connected to the display assembly 20, and the focusing assembly 40 is used for driving the display assembly 20 to move so as to make the display assembly 20 far away from or near the folding mirror assembly. In this way, the distance between the display assembly 20 and the folding mirror set 30 is adjusted to adjust the overall focal length of the display assembly 20 and the folding mirror set 30. The limiting member 50 is disposed at an end of the focusing assembly 40 near the display assembly 20 to limit the movement stroke of the display assembly 20. In other words, the limiting member 50 limits the display assembly 20 on the focusing assembly 40, so that the display assembly 20 cannot be separated from the focusing assembly 40, thereby limiting the movement stroke of the display assembly 20 and avoiding the interference between the display assembly 20 and the fold mirror assembly 30 caused by the excessive adjustment of the focusing assembly 40.

More specifically, as shown in fig. 2, 4 and 5, in one embodiment, the focusing assembly 40 includes a driving member 41 rotatably disposed on the upper cover assembly 10, a mating member 42 disposed on the display assembly 20, and a driven member 43 disposed between the upper cover assembly 10 and the display assembly 20, one end of the driven member 43 is rotatably connected to the upper cover assembly 10, and the limiting member 50 is disposed on the other end of the driven member 43; the mating element 42 is threadedly coupled to the driven element 43. So configured, the upper cover assembly 10 can support the driving member 41 and the driven member 43 to rotate, respectively, and can simultaneously drive the driven member 43 to rotate by rotating the driving member 41. The follower 43 and the mating member 42 can slide the mating member 42 relative to the follower 43 under the action of the screw threads, so as to achieve the effect of driving the display assembly 20 to slide.

Preferably, as shown in fig. 2, 4 and 5, in one embodiment, the mating member 42 has a threaded hole 421, the threaded hole 421 penetrating through both ends of the mating member 42. The follower 43 includes a threaded portion 431, the threaded portion 431 is rotatably inserted into the threaded hole 421, and the stopper 50 is fixedly mounted at one end of the threaded portion 431. In other words, the matching member 42 is sleeved on the screw portion 431, and when the driving member 41 drives the driven member 43 to rotate, the screw portion 431 rotates synchronously, and the matching member 42 slides along the screw portion 431 under the action of the threaded hole 421, so as to drive the display assembly 20 to slide. The stopper 50 fixed to one end of the screw portion 431 can restrict the engaging member 42 to the screw portion 431, so as to prevent the engaging member 42 from sliding out of the screw portion 431.

It will be appreciated that in one embodiment, as shown in fig. 4, the retainer 50 has a size that is larger than the size of the threaded aperture 421. When the engaging member 42 slides to the end of the threaded portion 431 where the stopper 50 is installed, since the size of the stopper 50 is larger than the size of the threaded hole 421, the stopper 50 can abut against the outside of the threaded hole 421, thereby restricting the threaded portion 431 from sliding out of the threaded hole 421, so as to have an effect of restricting the engaging member 42 to the threaded portion 431.

Further, as shown in fig. 2, 4 and 5, in one embodiment, the driving member 41 includes a driving gear portion 411 rotatably connected to the upper cover assembly 10, the driven member 43 further includes a driven gear portion 432 rotatably connected to the upper cover assembly 10, the screw portion 431 is fixedly disposed on the driven gear portion 432, and the driving gear portion 411 is engaged with the driven gear portion 432. So configured, the driving gear portion 411 can cooperate with the driven gear portion 432 to transfer the torque of the driving member 41 to the driven member 43, so as to enable the driving member 41 to drive the driven member 43 to rotate, thereby enabling the cooperating member 42 to slide along the driven member 43 by rotating the driving member 41.

Preferably, since the threaded portion 431 of the follower 43 and the threaded hole 421 of the mating member 42 inevitably generate a force for driving the display assembly 20 to rotate during the mating process, a slight rotation phenomenon of the display assembly 20 occurs during the sliding process, and the slight rotation phenomenon increases the sliding friction of the display assembly 20, which affects the smoothness of the sliding of the display assembly 20. Thus, as shown in fig. 5, in one embodiment, the driving gear portion 411 is of a bevel gear configuration and the driven gear portion 432 is of a bevel gear configuration. By means of the arrangement, through the cooperation of the bevel gear structure and the bevel gear mechanism, the torque provided by the driving piece 41 is obliquely applied to the driven piece 43, the force for driving the display assembly 20 to rotate is reduced, the slight rotation phenomenon of the display assembly 20 is reduced, and the stability of the display assembly 20 during focusing can be improved.

More preferably, as shown in fig. 4 and 5, in one embodiment, the driving member 41 further includes a thumb wheel portion 412 and a connection portion 413 connecting the thumb wheel portion 412 and the driving gear portion 411, and the connection portion 413 is rotatably inserted into the upper cover assembly 10 such that the thumb wheel portion 412 is located at the outer side of the upper cover assembly 10 and the driving gear portion 411 is located at the inner side of the upper cover assembly 10. Thus, the thumb wheel 412 is disposed outside the upper cover assembly 10, and after the BB optical machine is assembled, the user can rotate the driving member 41 by rotating the thumb wheel 412 disposed outside the upper cover assembly 10, so as to drive the driven member 43 to rotate, and slide the display assembly 20 along the driven member 43, so as to adjust the focal length of the BB optical machine.

In particular, as shown in fig. 2, in one embodiment, the display assembly 20 includes a sliding bracket 21 fixedly connected to the matching member 42, a display screen 22 and a focusing lens 23, wherein the sliding bracket 21 has a through mounting opening 211, the display screen 22 is mounted on the sliding bracket 21 and located at a side of the mounting opening 211 away from the folding mirror assembly 30, and the focusing lens 23 is mounted on the sliding bracket 21 and located at a side of the mounting opening 211 near the folding mirror assembly 30. The display screen 22 is configured to emit display light, and the focus lens 23 is configured to refract the display light emitted from the display screen 22. The display light emitted by the display screen 22 passes through the mounting opening 211, and is refracted to the folding mirror set 30 through the focusing lens 23, and the folding mirror set 30 reflects the display light to human eyes. And, the sliding support 21 can drive the display screen 22 and the focusing lens 23 to be far away from or close to the turning mirror group 30 under the drive of the matching piece 42, so as to change the overall focal length of the BB optical machine and realize the effect of adjusting the focal length of the BB optical machine.

It is noted that in one embodiment, as shown in fig. 4, the mating member 42 has a thickness greater than the sliding support 21. By increasing the thickness of the engaging piece 42, the contact area of the engaging piece 42 and the screw portion 431 can be increased, so that the engaging piece 42 can slide along the screw portion 431 more smoothly, thereby increasing the smoothness of the slide bracket 21.

Further, the utility model also provides an AR (augmented reality) eyeglass, which comprises an eyeglass main body and the BB optical-mechanical focusing structure, wherein the BB optical-mechanical focusing structure is arranged on the eyeglass main body. The AR glasses can avoid the risk that the display assembly 20 interferes with the foldback lens group 30 or is separated out beyond the maximum travel through the BB light machine focusing structure, and have excellent stability and safety.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. A BB optical machine focusing structure, characterized by comprising:

an upper cover assembly;

the display component is arranged on one side of the upper cover component;

2. The BB optical machine focusing mechanism of claim 1, wherein the focusing assembly comprises a driving member rotatably disposed on the upper cover assembly, a mating member disposed on the display assembly, and a driven member disposed between the upper cover assembly and the display assembly, one end of the driven member being rotatably connected to the upper cover assembly, and the limiting member being disposed at the other end of the driven member; the mating member is threadably coupled to the follower.

3. The BB optical bench focusing mechanism of claim 2 wherein the mating member has a threaded bore, the follower comprises a threaded shaft portion rotatably inserted into the threaded bore, and the stop member is fixedly mounted to one end of the threaded shaft portion.

4. The BB optical bench focusing mechanism of claim 3 wherein the size of the stop is greater than the size of the threaded hole.

5. The BB optical bench focusing mechanism of claim 3 wherein the driving member comprises a driving gear portion rotatably connected to the upper cover assembly, the driven member further comprises a driven gear portion rotatably connected to the upper cover assembly, the screw portion is fixedly disposed on the driven gear portion, and the driving gear portion is engaged with the driven gear portion.

6. The BB optical bench focusing mechanism of claim 5 wherein the driving gear section is of bevel gear configuration and the driven gear section is of bevel gear configuration.

7. The BB optical bench focusing mechanism of claim 5 wherein the driving member further comprises a thumb wheel portion and a connecting portion connecting the thumb wheel portion and the driving gear portion, the connecting portion being rotatably inserted into the upper cover assembly such that the thumb wheel portion is located on the outer side of the upper cover assembly, and the driving gear portion is located on the inner side of the upper cover assembly.

8. The BB optical bench focusing structure of claim 2 wherein the display assembly comprises a sliding bracket fixedly connected to the mating member, a display screen and a focusing lens, the sliding bracket having a through mounting opening, the display screen being mounted to the sliding bracket and located on a side of the mounting opening remote from the fold-back mirror assembly, the focusing lens being mounted to the sliding bracket and located on a side of the mounting opening proximate to the fold-back mirror assembly.

9. The BB opto-mechanical focusing mechanism of claim 8 wherein the mating member has a thickness greater than a thickness of the sliding support.

10. An AR glasses, comprising:

a glasses body; and

the BB optical bench focusing mechanism of any one of claims 1 to 9, mounted to the eyeglass body.