CN219936208U - Optical far and near scene adjusting device and AR equipment - Google Patents

Abstract

The utility model provides an optical far and near scene adjusting device and AR equipment, which belong to the technical field of head-mounted display equipment and comprise the following components: the guide rail support is provided with a first chute and a second chute, and the second chute and the extending direction of the first chute form an acute angle; the first sliding block is arranged in the first sliding groove in a sliding way; the second sliding block is arranged in the second sliding groove in a sliding way and is suitable for being connected with the screen bracket; the two ends of the linkage rod are respectively connected with the first sliding block and the second sliding block in a rotating way; when the first sliding block moves, the second sliding block is driven to move in the vertical direction through the linkage rod, so that the screen bracket is driven to do lifting motion; in the utility model, when the first sliding block moves, the second sliding block also moves under the action of the linkage rod, so that the screen bracket moves up and down, and the distance screen position is switched.

Description

Optical far and near scene adjusting device and AR equipment

Technical Field

The utility model relates to the technical field of head-mounted display equipment, in particular to an optical far-near scene adjusting device and AR equipment.

Background

An AR head-mounted display device is a device for skillfully combining virtual information and the real world.

The current AR head-mounted display equipment has only one imaging screen position, is suitable for watching a screen with a far distance, and has a fuzzy virtual imaging and poor virtual-real combined experience for near-screen scenes such as reading books, reading computers and the like.

The AR head-mounted display device in the prior art can only adjust diopter by adjusting the angle between the screen and the lens, and cannot realize scene adjustment of the position of the far screen and the near screen.

Disclosure of Invention

Therefore, the technical problem to be solved by the utility model is to overcome the defect that the AR head-mounted display equipment in the prior art cannot switch the positions of the far and near screens, so as to provide an optical far and near scene adjusting device and AR equipment.

In order to solve the above technical problems, the present utility model provides an optical distance scene adjusting device, comprising: the guide rail support is provided with a first chute and a second chute, and the second chute and the extending direction of the first chute form an acute angle; the first sliding block is arranged in the first sliding groove in a sliding way; the second sliding block is arranged in the second sliding groove in a sliding way and is suitable for being connected with the screen bracket; the two ends of the linkage rod are respectively connected with the first sliding block and the second sliding block in a rotating way; when the first sliding block moves, the second sliding block is driven to move in the vertical direction through the linkage rod, and then the screen support is driven to do lifting motion.

Preferably, the extending direction of the first sliding groove is a horizontal direction, and the extending direction of the second sliding groove is arranged at an acute angle with the horizontal direction.

Preferably, the two ends of the linkage rod are provided with clamping parts, the first sliding block and the second sliding block are provided with clamping grooves matched with the clamping parts, and the clamping parts are embedded into the clamping grooves and can rotate in the clamping grooves.

Preferably, the central connecting line of the two clamping grooves is arranged at an acute angle with the extending direction of the first sliding groove and is arranged in a crossing manner with the extending direction of the second sliding groove.

Preferably, a limiting component is arranged on one side, far away from the second sliding groove, of the guide rail support, and the limiting component can limit the moving distance of the first sliding block and/or the second sliding block.

Preferably, the spacing assembly comprises: the elastic piece and the limiting piece are arranged on the first sliding block at intervals along the sliding direction, the guide rail support is provided with a containing cavity, the limiting piece and the elastic piece are arranged in the containing cavity, the elastic piece has a force for driving the limiting piece to move towards the first sliding block, and the limiting piece is matched with the two limiting grooves on the first sliding block to limit the horizontal sliding distance of the first sliding block.

Preferably, one end of the limiting piece, which is close to the limiting groove, is arranged in a conical shape.

Preferably, the limiting assembly further comprises a protruding block which is arranged in the second sliding groove and used for limiting the second sliding block, and a groove which is arranged on the second sliding block and corresponds to the protruding block, and the width of the groove is larger than that of the protruding block in the same direction.

Preferably, a deflector rod for moving the first slider is arranged on the first slider, and the deflector rod extends out of the guide rail bracket.

In addition, there is also provided an AR device including: the optical far and near scene adjusting device of any one of the schemes is arranged on the binocular support and is connected with one end of the second sliding block.

Preferably, the method further comprises: the mainboard, the mainboard setting is provided with magnetic induction device on the binocular support on the mainboard, is provided with magnet on the screen support, thereby magnetic induction device is suitable for the position of the magnetic flux judgement current screen support of induction magnet.

The technical scheme of the utility model has the following advantages:

1. according to the optical distance scene adjusting device provided by the utility model, the first sliding block moves in the sliding groove, and two ends of the linkage rod are respectively and rotatably connected with the first sliding block and the second sliding block; the second slider is connected with the screen support, and when the first slider moves, the second slider also moves under the effect of the link rod, so that the screen support moves up and down, and the distance screen position is switched.

2. According to the optical distance scene adjusting device provided by the utility model, the first sliding block horizontally extends, the extending direction of the second sliding block forms an acute angle with the first sliding block, and the second sliding block can be displaced in the height direction when the first sliding block horizontally slides at the moment.

3. According to the AR equipment provided by the utility model, the optical far and near scene adjusting device is arranged in the shell, and the screen frame is driven to move by stirring the deflector rod in the optical far and near scene adjusting device, so that the screen is close to or far from the optical lens, and the distance adjustment of the screen position is realized.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a perspective view of one embodiment of an AR device provided in an embodiment of the present utility model;

FIG. 2 is a perspective view of the AR device of FIG. 1;

FIG. 3 is a front view of the optical near-far scene adjusting device of FIG. 1;

FIG. 4 is a cross-sectional view of the optical near-far scene modifier of FIG. 3;

FIG. 5 is an exploded view of the optical near-far scene adjusting device of FIG. 3;

FIG. 6 is a rear view of the second slider of FIG. 5;

fig. 7 is a front view of the first slider of fig. 5.

Reference numerals illustrate:

1. a guide rail bracket; 2. a first chute; 3. a second chute; 4. a first slider; 5. a second slider; 6. a screen bracket; 7. a linkage rod; 8. a clamping part; 9. a clamping groove; 10. a limit component; 11. an elastic member; 12. a limiting piece; 13. a limit groove; 14. a first limit groove; 15. the second limit groove; 16. a receiving chamber; 17. a taper; 18. a bump; 19. a groove; 20. a deflector rod; 21. a binocular support; 22. a main board; 23. a magnetic induction device; 24. a magnet; 25. an optical seal holder; 26. a lens fixing bracket; 27. an end plate; 28. a lens.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. 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 addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

The optical distance scene adjusting device provided by the embodiment is used for adjusting the distance between an LCD screen and an optical lens in the AR display equipment.

As shown in fig. 3, a specific implementation manner of the optical near-far scene adjusting device provided in this embodiment includes: the guide rail comprises a guide rail bracket 1, a first sliding block 4, a second sliding block 5 and a linkage rod 7, wherein the guide rail bracket 1 is provided with a first sliding groove 2 and a second sliding groove 3, and the second sliding groove 3 and the extending direction of the first sliding groove 2 are arranged at an acute angle; the first sliding block 4 is arranged in the first sliding groove 2 in a sliding way; the second sliding block 5 is arranged in the second sliding groove 3 in a sliding way, one side end part of the second sliding block 5 is connected with the screen bracket 6, and two LCD screens are symmetrically arranged on the screen bracket 6; two ends of the linkage rod 7 are respectively connected with the first sliding block 4 and the second sliding block 5 in a rotating way; when the first sliding block 4 moves, the second sliding block 5 is driven to move in the vertical direction through the linkage rod 7, so that the screen support 6 is driven to do lifting motion, and the distance between the screen support 6 and the lens 28 is adjusted, so that the function of switching the positions of a far screen and a near screen is realized.

As shown in fig. 7, in an embodiment of the optical near-far scene adjusting device provided in this embodiment, the extending direction of the first chute 2 is a horizontal direction, and the extending direction of the second chute 3 is disposed at an acute angle to the horizontal direction. The first sliding block 4 horizontally extends, the extending direction of the second sliding block 5 forms an acute angle with the first sliding block 4, and the second sliding block 5 can be displaced in the height direction when horizontally sliding the first sliding block 4 at the moment. In addition, as an alternative embodiment, the extending direction of the second chute 3 is arranged perpendicular to the horizontal direction.

As shown in fig. 5, in one implementation manner of the optical distance scene adjusting device provided in this embodiment, two ends of the linkage rod 7 are provided with clamping parts 8, the clamping parts 8 are embedded into clamping grooves 9 on the first slider 4 and the second slider 5, the clamping parts 8 can rotate in the clamping grooves 9, at this time, the clamping is firmer, and the structure is simple and the installation is convenient. The connecting rod 7 is a straight rod, the clamping part 8 of the connecting rod 7 is a cylinder fixedly connected with the straight rod, and the clamping groove 9 is a circular arc-shaped through groove corresponding to the cylinder. When the first slider 4 moves horizontally, the clamping portion 8 rotates in the clamping groove 9, so as to drive the main body portion of the linkage rod 7 to move, and the other end of the linkage rod 7 is rotationally connected with the second slider 5, at this time, the movement of the first slider 4 drives the second slider 5 to move along the second chute 3 in a direction approximately opposite to the movement direction of the first slider 4. In addition, as an alternative embodiment, the first slider 4 and the second slider 5 are provided with a limit post, and two ends of the linkage rod 7 are provided with grooves corresponding to the limit post, and the limit post is embedded into the groove.

As shown in fig. 3, in one embodiment of the optical near-far scene adjusting device provided in this embodiment, the central connecting line of the two clamping grooves 9 and the extending direction of the first sliding groove 2 form an acute angle, at this time, the linkage rod 7 and the extending direction of the first sliding groove 2 form an acute angle, and are arranged to cross with the extending direction of the second sliding groove 3, that is, the first sliding groove 2, the second sliding groove 3 and the linkage rod 7 enclose a triangle, and when the first sliding block 4 slides, the rotation of the linkage rod 7 in the clamping groove 9 is more convenient. In addition, as an alternative embodiment, the center line of the two locking grooves 9 is arranged at right angles to the direction of extension of the first sliding groove 2.

As shown in fig. 5, in an embodiment of the optical near-far scene adjusting device provided in this embodiment, a limit component 10 is disposed on a side of the rail bracket 1 away from the second chute 3, and the limit component 10 includes: the elastic piece 11 and the limiting piece 12, the elastic piece 11 is a spring, the limiting piece 12 is provided with a cylindrical guide post, and the spring is abutted to the end face of the limiting piece 12 after passing through the guide post. The first slider 4 is provided with two limit grooves 13 at intervals along the sliding direction, including: the first limiting groove 14 and the second limiting groove 15, the first limiting groove 14 is arranged at one side end part far away from the second sliding groove 3, and the second limiting groove 15 is arranged between the first limiting groove 14 and the second sliding groove 3. The guide rail bracket 1 is provided with a containing cavity 16, and the limiting piece 12 and the elastic piece 11 are arranged in the containing cavity 16. In the initial state, the limiting piece 12 is clamped in the first limiting groove 14, when the first sliding block 4 moves, the elastic piece 11 is compressed, the limiting piece 12 is separated from the first limiting groove 14, when the second limiting groove 15 of the first sliding block 4 moves to the limiting piece 12, the elastic piece 11 drives the limiting piece 12 to be clamped in the second limiting groove 15, and the limiting piece 12 is limited to the first sliding block 4, and is in the end point state at the moment. In addition, as an alternative embodiment, the elastic member 11 may be provided as a torsion spring; the limit grooves 13 are arranged in a plurality.

As shown in fig. 5, in one embodiment of the optical distance scene adjusting device provided in this embodiment, one end of the limiting member 12, which is close to the limiting groove 13, is provided with a taper 17, and the limiting groove 13 is a taper notch corresponding to the taper 17. The inclination direction of the conical plane is the moving direction of the first slider 4. Due to the arrangement of the conical surface, when the first sliding block 4 moves, the limiting piece 12 compresses the elastic piece 11 under the action of the conical surface 17, so that the movement of the first sliding block 4 is more convenient. In addition, as an alternative embodiment, both side surfaces of the taper 17 are provided in an arc shape.

As shown in fig. 5, 6 and 7, in one implementation manner of the optical distance scene adjusting device provided in this embodiment, the limiting assembly 10 further includes a protrusion 18 disposed in the second chute 3 for limiting the second slider 5, a groove 19 corresponding to the protrusion 18 is disposed on the second slider 5, the width of the groove 19 is greater than the width of the protrusion 18 in the same direction, and the protrusion 18 can not only provide guidance for sliding of the second slider 5, but also play a role in limiting the sliding distance of the second slider 5. When the first slider 4 is in an initial state, namely the limiting piece 12 is in the first limiting groove 14, the convex block 18 is abutted to the bottom inner wall of the groove 19; when the first slider 4 moves and the limiting piece 12 is in the second limiting groove 15, the protruding block 18 abuts against the inner wall of the top end of the groove 19 to limit the movement of the second slider 5. In addition, as an alternative embodiment, a waist-shaped groove is formed in the second chute 3 along the moving direction, a cylinder is arranged on the second chute 3, the cylinder extends into the waist-shaped groove, and the cylinder abuts against two ends of the waist-shaped groove to limit the second sliding block 5.

As shown in fig. 4, in an embodiment of the optical near-far scene adjusting device provided in this embodiment, a driving lever 20 is disposed on the first slider 4, and the driving lever 20 is fixedly connected with the first slider 4 and integrally formed. The deflector rod 20 extends out of the guide rail bracket 1. When the first sliding block 4 needs to be moved, the first sliding block 4 can be moved by pulling the deflector rod 20, and the deflector rod 20 is convenient to set and operate. In addition, as an alternative embodiment, the first slider 4 is provided with anti-skid patterns, and the first slider 4 is directly dragged to slide.

In addition, as shown in fig. 1, there is also provided an AR device including: the optical distance scene adjusting device is arranged on the binocular support 21 and the screen support 6, and the screen support 6 is connected with one end of the second sliding block 5. The LCD screen is arranged on the screen support 6, the binocular support 21 is a basic support framework of AR equipment, the optical far and near scene adjusting device is arranged on the binocular support 21, through holes are formed in the guide rail support 1 of the optical far and near scene adjusting device, and the optical far and near scene adjusting device is fastened to the binocular support 21 through screws. The screen bracket 6 is connected with one end of the second sliding block 5, four through holes are formed in one end of the second sliding block 5, and four bolts penetrate through the through holes and then are connected with the screen bracket 6. When the deflector rod 20 is poked, the first sliding block 4 moves, the second sliding block 5 is driven to move through the linkage rod 7, so that the screen bracket 6 moves, the distance between the screen and the lens is adjusted through the optical far and near scene adjusting device, and the switching of far and near screen scenes is realized.

As shown in fig. 1, an implementation manner of the AR device provided in this embodiment further includes: the main board 22, the main board 22 is arranged on the binocular support 21, the magnetic induction device 23 is arranged on the main board 22, the magnet 24 is arranged on the screen support 6, and the magnetic induction device 23 induces the magnetic flux of the magnet 24 so as to judge the current position of the screen support 6. The screen bracket 6 is driven to do lifting movement by the optical distance scene adjusting device, the magnet 24 on the screen bracket 6 also does lifting movement along with the screen bracket 6, and the position of the magnet 24 is changed. The magnetic induction device 23 on the main board 22 induces the magnetic flux of the magnet 24 to change, the magnetic induction device 23 judges the movement direction of the magnet 24 through the change of the magnetic flux, a signal is sent to the main board 22, the main board 22 is electrically connected with the magnetic induction device 23, the main board 22 determines the position of the current screen according to the received signal, and the position of the current virtual image is output, so that the detection of the virtual image distance position is realized.

The installation mode of the optical far and near scene adjusting device comprises the following steps: the elastic piece 11 is arranged in the accommodating cavity 16 of the guide rail bracket 1, the guide post of the limiting piece 12 penetrates through the elastic piece 11, and the first sliding block 4 slides into the first sliding groove 2 from the side far away from the limiting piece 12 until the first limiting groove 14 of the first sliding block 4 is matched with the limiting piece 12. The engaging portion 8 at one end of the link 7 is fitted into the engaging groove 9, and the engaging groove 9 of the second slider 5 is connected to the engaging portion 8 at the other end of the link 7, and the projection 18 is also provided in the groove 19. An end cap is covered to one side of the rail housing 1, and the end cap is fixed to the rail housing 1 using screws.

Working principle of the optical distance scene adjusting device: the optical distance scene adjusting device mainly comprises a guide rail bracket 1, a first sliding block 4, a second sliding block 5 and a linkage rod 7, wherein a deflector rod 20 is arranged on the first sliding block 4, and the deflector rod 20 can be used as an adjusting deflector button. The first slider 4 is connected with the second slider 5 through the linkage rod 7, as shown in fig. 4, when the driving lever 20 is manually shifted clockwise, the second slider 5 is driven to perform linear motion along the first chute 2, that is, move towards the lower left, and meanwhile the clamping part 8 rotates clockwise. The first runner 2 and the second runner 3 of the rail bracket 1 guide the movement of the first slider 4 and the second slider 5. The cover plate is connected with the guide rail bracket 1 through screws, so that the first sliding block 4 and the second sliding block 5 are always positioned in the guide rail bracket 1. The second sliding block 5 is connected with a screen bracket 6 of the optical module, and the movement of the second sliding block 5 drives the screen bracket 6 to move downwards. The limiting piece 12 and the elastic piece 11 are arranged in the accommodating cavity 16 of the guide rail bracket 1, one end of the elastic piece 11 is abutted to the bottom of the accommodating cavity 16, the other end of the elastic piece 11 is abutted to the limiting piece 12, and the elastic piece 11 can enable the limiting piece 12 to move along the central axis of the accommodating cavity 16. When the shift lever 20 is manually shifted clockwise, the limiting piece 12 is pushed by the first sliding block 4, the elastic piece 11 is compressed, the limiting piece 12 moves downwards and is separated from the current limiting groove 13, and when the shift lever 20 moves to a certain position, the elastic piece 11 pushes the limiting piece 12 to be clamped into the other limiting groove 13 on the left side. The second sliding groove 3 is provided with the convex block 18, the second sliding block 5 is provided with the groove 19, when the second sliding block 5 moves to a designed stroke, the convex block 18 is abutted with the inner wall of the lower side of the groove 19 on the second sliding block 5, so that the screen bracket 6 descends to the close-up position of the lowest point, and the stroke limiting effect is achieved. When the screen bracket 6 needs to be lifted to a distant view position, the deflector rod 20 is shifted anticlockwise, the limiting piece 12 is clamped into the first limiting groove 14 on the right side, and the convex block 18 is abutted with the inner wall on the upper side of the groove 19 on the second sliding block 5.

The mounting mode of the AR equipment is as follows: as shown in fig. 2, the AR apparatus mainly includes an optical module and an optical near-far scene adjusting device, wherein the optical module mainly includes an optical sealing bracket 25, a binocular bracket 21 and two lens fixing brackets 26, left and right lenses, two display LCD screens, a screen bracket 6 and a display screen PFC. Two lenses are fixedly mounted to a lens fixing bracket 26, and the lens fixing bracket 26 is fixed to the binocular rest 21; the display screen is fixed to the screen holder 6, and the screen holder 6 is connected to the binocular support 21 through an optical near-far scene adjusting device. While the optical sealing support 25 is assembled to the binocular support 21 to seal the structure.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present utility model.

Claims (11)

1. An optical distance scene adjusting device, comprising:

the guide rail bracket (1), the guide rail bracket (1) is provided with a first chute (2) and a second chute (3), and the second chute (3) and the extending direction of the first chute (2) are arranged at an acute angle;

the first sliding block (4) is arranged in the first sliding groove (2) in a sliding manner;

the second sliding block (5), the second sliding block (5) is slidably arranged in the second sliding groove (3), and the second sliding block (5) is suitable for being connected with the screen bracket (6);

the two ends of the linkage rod (7) are respectively and rotatably connected with the first sliding block (4) and the second sliding block (5); when the first sliding block (4) moves, the second sliding block (5) is driven to move in the vertical direction through the linkage rod (7), so that the screen bracket (6) is driven to do lifting movement.

2. The optical distance scene adjusting device according to claim 1, wherein the extending direction of the first sliding groove (2) is a horizontal direction, and the extending direction of the second sliding groove (3) is arranged at an acute angle to the horizontal direction.

3. The optical far and near scene adjusting device according to claim 2, wherein two ends of the linkage rod (7) are provided with clamping parts (8), the first sliding block (4) and the second sliding block (5) are provided with clamping grooves (9) matched with the clamping parts (8), and the clamping parts (8) are embedded into the clamping grooves (9) and can rotate in the clamping grooves (9).

4. An optical distance scene adjusting device as claimed in claim 3, characterized in that the central connecting line of the two clamping grooves (9) is arranged at an acute angle with the extending direction of the first sliding groove (2) and is arranged crosswise with the extending direction of the second sliding groove (3).

5. Optical distance scene adjusting device according to any of claims 1-4, characterized in that a limiting assembly (10) is arranged on the side of the guide rail bracket (1) away from the second sliding groove (3), and the limiting assembly (10) can limit the moving distance of the first sliding block (4) and/or the second sliding block (5).

6. The optical near-far scene adjustment device according to claim 5, characterized in that said limiting assembly (10) comprises: elastic component (11) and locating part (12), first slider (4) are provided with two spacing groove (13) along slip direction interval, guide rail support (1) are provided with and hold chamber (16), locating part (12) and elastic component (11) all set up hold in chamber (16), elastic component (11) have the drive locating part (12) orientation first slider (4) removal power, so that locating part (12) with two spacing groove (13) cooperation on first slider (4) are right the horizontal sliding distance of first slider (4) carries out spacingly.

7. The optical distance scene adjusting device according to claim 6, wherein one end of the limiting member (12) near the limiting groove (13) is provided in a tapered shape (17).

8. The optical distance scene adjusting device according to claim 5, wherein the limiting assembly (10) further comprises a protruding block (18) arranged in the second sliding groove (3) and used for limiting the second sliding block (5), and a groove (19) arranged on the second sliding block (5) and corresponding to the protruding block (18), and the width of the groove (19) is larger than that of the protruding block (18) in the same direction.

9. Optical distance-scene adjusting device according to claim 7 or 8, characterized in that the first slider (4) is provided with a lever (20) for moving the first slider (4), the lever (20) extending out of the guide rail bracket (1).

10. An AR device, comprising: the optical far and near scene adjusting device according to any one of claims 1 to 9 is arranged on the binocular support (21) and the screen support (6), and the screen support (6) is connected with one end of the second sliding block (5).

11. The AR device of claim 10, further comprising: the magnetic induction device comprises a main board (22), wherein the main board (22) is arranged on a binocular support (21), a magnetic induction device (23) is arranged on the main board (22), a magnet (24) is arranged on a screen support (6), and the magnetic induction device (23) is suitable for inducing magnetic flux of the magnet (24) so as to judge the position of the current screen support (6).