CN114721155A - Near-to-eye display device - Google Patents
Near-to-eye display device Download PDFInfo
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- CN114721155A CN114721155A CN202210641832.6A CN202210641832A CN114721155A CN 114721155 A CN114721155 A CN 114721155A CN 202210641832 A CN202210641832 A CN 202210641832A CN 114721155 A CN114721155 A CN 114721155A
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- display device
- eye display
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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
- G02B27/0172—Head mounted characterised by optical features
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/12—Adjusting pupillary distance of binocular pairs
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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
- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/0132—Head-up displays characterised by optical features comprising binocular systems
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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
- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/0138—Head-up displays characterised by optical features comprising image capture systems, e.g. camera
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Abstract
The utility model provides a near-to-eye display device, which comprises a housin, the main support, first camera lens, the second camera lens, first support, the second support, focus adjustment mechanism, interpupillary distance adjustment mechanism and visual field adjustment mechanism, casing one side is provided with the display screen, the main support is installed in the casing around first direction rotation, first support and second support movable mounting are in the main support, first camera lens and second camera lens electric connection display screen, first camera lens is connected on first support, the second camera lens is connected on the second support, focus adjustment mechanism is used for adjusting the focus of first camera lens and second camera lens, interpupillary distance adjustment mechanism is used for adjusting the distance of first camera lens and second camera lens, visual field adjustment mechanism is used for adjusting the angle that opens and shuts of first camera lens and second camera lens. The method and the device can achieve the aim of adjusting the interpupillary distance, the focal length and the overlapped view field aiming at different observation targets, and eliminate the dizziness of the device in the using process as much as possible.
Description
Technical Field
The application belongs to the field of near-eye display equipment, and particularly relates to a near-eye display device.
Background
Current near-eye display systems typically consist of miniature projection and waveguide displays through which projected image light is delivered to the human eye to achieve near-eye display. To different users, the product structure design has manual interpupillary distance adjustable mechanism, when using, carries out interpupillary distance according to everyone actual observation's demand and adjusts to improve the image effect that people's eyes saw.
In the prior art, when different people wear equipment to observe, the best matching observation effect of human eyes is met by manually adjusting the distance between the eyepieces, the discomfort of the human eyes to an image is relieved as much as possible, but the two cameras can only increase the overlapped view field by adjusting the overlapped view field, but the main optical axes are still parallel, so that a displayed target is different from an actual object observed by the human eyes, a video picture and a picture of the peripheral view field of the human eyes cannot be fused in an equal proportion, and the generated visual cognitive impairment can make the human feel dizzy. That is, the scene observed by the human eye on the screen is different from the actual scene observed by the human eye, so that the human eye wearing the screen for a long time may cause dizziness and the human eye may make an erroneous judgment on the observed object.
Disclosure of Invention
An object of the embodiments of the present application is to provide a near-eye display device, so as to solve the technical problems that in the prior art, a scene observed by human eyes on a screen is different from a scene observed by actual human eyes, and the long-time wearing of the near-eye display device may cause dizziness and cause people to make an erroneous judgment on an observed object.
In order to achieve the purpose, the technical scheme adopted by the application is as follows: a near-eye display device is provided, comprising:
one side of the shell is provided with an eyepiece and a display screen;
the main bracket is rotatably arranged in the shell around a first direction;
the first lens is electrically connected with the display screen;
the second lens is electrically connected with the display screen;
the first bracket supports the first lens, and is movably arranged in the main bracket;
the second bracket supports the second lens, and is movably arranged in the main bracket;
the focal length adjusting mechanism is arranged on the main bracket and used for adjusting the focal lengths of the first lens and the second lens;
the pupil distance adjusting mechanism is arranged on the main support and is used for driving the first lens and the second lens to synchronously and reversely move along the first direction;
and the view field adjusting mechanism is arranged on the main support and used for driving the first lens and the second lens to synchronously and reversely rotate around a second direction, and the second direction is vertical to the first direction and the front-back direction.
Optionally, the focal length adjustment mechanism comprises:
the first focusing motor is connected to the main bracket;
the first focusing assembly is used for driving the first lens to rotate and focus, and the first focusing assembly is connected with the first focusing motor and the first lens;
the second focusing motor is connected to the main bracket;
and the second focusing assembly is used for driving the second lens to rotate for focusing, and the second focusing assembly is connected with the second focusing motor and the second lens.
Optionally, the focus adjustment mechanism further comprises a first focusing wheel for driving the first focusing motor and a second focusing wheel for driving the second focusing motor, the first focusing wheel is connected with an output shaft of the first focusing motor, the first focusing wheel extends out of the shell, the second focusing wheel is connected with an output shaft of the second focusing motor, and the second focusing wheel extends out of the shell.
Optionally, the interpupillary distance adjustment mechanism comprises:
the first rack extends along the first direction and is connected with the first bracket;
the second rack extends along the first direction and is connected with the second bracket;
the first gear drives the first rack and the second rack to synchronously and reversely move; and the number of the first and second groups,
the first motor is used for driving the first gear to rotate, and the first motor is arranged on the main bracket;
the first rack and the second rack are respectively engaged with opposite sides of the first gear.
Optionally, the interpupillary distance adjustment mechanism further comprises a toggle wheel, the toggle wheel is coaxially connected with the first gear, and the toggle wheel partially extends out of the shell.
Optionally, the field of view adjustment mechanism comprises:
the first sliding rail extends along the first direction and is connected with the first support;
the second sliding rail extends along the first direction and is connected with the second support;
the sliding part is respectively connected with the first sliding rail and the second sliding rail in a sliding manner; and (c) a second step of,
and the pushing assembly is arranged on the main bracket and used for pushing the sliding piece to move back and forth.
Optionally, the pushing assembly comprises:
one end of the screw rod is connected with the sliding piece, and the screw rod is slidably arranged on the main bracket;
the nut is arranged on the screw rod;
and the transmission assembly is connected with the first motor and the nut so as to drive the nut to rotate.
Optionally, an external gear is arranged on the nut, the transmission assembly includes a second gear and an intermediate gear connecting the second gear and the external gear, and the second gear is coaxially connected with the first gear.
Optionally, the slider includes slider and guide arm, the through-hole has been seted up along the second direction on the slider, the guide arm passes the through-hole, be equipped with first limiting plate and second limiting plate on the main support, be equipped with first guide slot along the fore-and-aft direction on the first limiting plate, be equipped with the second guide slot along the fore-and-aft direction on the second limiting plate, the both ends of guide arm slide respectively and arrange in first guide slot with in the second guide slot.
Optionally, a first slide way is arranged on the first slide rail along the first direction, a second slide way is arranged on the second slide rail along the first direction, and the guide rod penetrates through the first slide way and the second slide way.
Optionally, a rotating wheel is mounted on a pivot of the main bracket connected with the housing, and the rotating wheel is located outside the housing.
Optionally, the rack-type power transmission device further comprises a third bracket and a fourth bracket, wherein one end of the third bracket is connected with the first rack, the other end of the third bracket is provided with a first sliding protrusion, one end of the fourth bracket is connected with the second rack, the other end of the fourth bracket is provided with a second sliding protrusion, the first bracket is rotatably connected in the third bracket along the second direction, and the second bracket is rotatably connected in the fourth bracket along the second direction;
a sliding groove is formed in the inner wall of the main support along the first direction, and the first sliding protrusion and the second sliding protrusion are connected in the sliding groove in a sliding mode.
Optionally, a first rib plate is arranged on the main support along a first direction, a first stop block, a second stop block and a baffle plate are arranged on the first rib plate, the first rack is located between the first stop block and the inner wall surface of the main support, and the second rack is located between the second stop block and the baffle plate.
The near-to-eye display device provided by the embodiment of the application has the beneficial effects that: compared with the prior art, the near-to-eye display device provided by the embodiment of the application has the advantages that the ocular lens and the display screen are arranged on one side of the shell, the display screen is electrically connected with the first lens and the second lens, and the focal length adjusting mechanism, the interpupillary distance adjusting mechanism and the visual field adjusting mechanism are arranged to realize the adjustment of the interpupillary distance, the focal length and the overlapped visual field so as to simulate the identification and adjustment mode of human eyes on far and near objects, therefore, pupil distance matching can be performed on different people, after matching is completed, the relative distance, the opening and closing angle and the focal length of the camera (the first lens and the second lens) are controlled by the focal length adjusting mechanism, the pupil distance adjusting mechanism and the view field adjusting mechanism, the aims of different observation targets, adjustable pupil distance, adjustable focal length and adjustable overlapped view field are achieved, the picture transmitted by the display screen observed by the human eyes is finally consistent with the image in actual observation of the human eyes, and vertigo of the equipment in the using process is eliminated as much as possible.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a first schematic structural diagram of a near-eye display device according to an embodiment of the present disclosure.
Fig. 2 is a schematic structural diagram of a near-eye display device according to an embodiment of the present application.
Fig. 3 is an exploded schematic view of a near-eye display device according to an embodiment of the present disclosure.
Fig. 4 is a schematic structural diagram of a main support of a near-eye display device facing a front case according to an embodiment of the present disclosure.
Fig. 5 is a schematic structural diagram of a side of a main support of a near-eye display device facing a rear case according to an embodiment of the present disclosure.
Fig. 6 is a schematic structural view of a near-eye display device provided in an embodiment of the present application, which is oriented to a side of a rear housing after a housing is removed.
Fig. 7 is a schematic structural view of a near-eye display device provided in an embodiment of the present application, which is oriented to a side of a front housing after a housing is removed.
Fig. 8 is a partial enlarged view of a in fig. 7.
Fig. 9 is a schematic structural diagram of a first motor, a first gear, a second gear, and a dial wheel of a near-eye display device according to an embodiment of the present disclosure.
Fig. 10 is a schematic structural diagram of a nut of a near-eye display device according to an embodiment of the present application.
Fig. 11 is a schematic structural diagram of a screw and a slider of a near-eye display device according to an embodiment of the present application.
Fig. 12 is a schematic structural diagram of a first rack and a third rack of a near-eye display device provided in an embodiment of the present application.
Fig. 13 is a schematic structural diagram of a second rack and a fourth bracket of a near-eye display device according to an embodiment of the present disclosure.
Fig. 14 is a schematic structural diagram of a first support of a near-eye display device according to an embodiment of the present application.
Fig. 15 is a schematic structural diagram of a second support of a near-eye display device according to an embodiment of the present application.
Wherein, in the figures, the respective reference numerals:
1. a housing; 11. a rear housing; 12. a front housing; 13. a circuit board;
111. an eyepiece; 112. a display screen; 113. an arc-shaped plate; 114. a first semicircular groove; 121. a lens hole; 122. a second semi-circular groove; 123. a focusing slot;
2. a main support; 21. a second rib plate; 22. a first rib plate; 23. a pivot; 24. a chute; 25. a poking groove;
211. a first limit plate; 212. a second limiting plate; 213. poking holes; 221. a first stopper; 222. a second stopper; 223. a baffle plate; 231. a rotating wheel; 2111. a first guide groove; 2121. a second guide groove;
3. a first bracket; 31. a first slide rail; 32. a first rotating projection; 33. a third support;
311. a first slideway; 331. a first splint; 332. a first connecting plate; 333. a first sliding projection; 3311. a first rotary hole;
4. a second bracket; 41. a second slide rail; 42. a second rotating projection; 43. a fourth bracket;
411. a second slideway; 431. a second splint; 432. a second connecting plate; 433. a second sliding projection; 4311. a second rotary hole;
5. a first lens; 6. a second lens;
7. a focal length adjusting mechanism; 71. a first focus motor; 72. a first focusing assembly; 73. a second focus motor; 74. a second focusing assembly; 75. a first focusing wheel; 76. a second focusing wheel;
8. a pupil distance adjusting mechanism; 81. a first motor; 82. a first gear; 83. a first rack; 84. a second rack; 85. a poking wheel;
9. a field of view adjustment mechanism; 91. a slider; 92. a guide bar; 93. a screw; 94. a nut; 95. a second gear; 96. an intermediate gear;
911. a through hole; 921. a limiting block; 941. and an external gear.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in 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 present application and are not intended to limit the present application.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1-3 together, a near-eye display device provided in an embodiment of the present application will now be described. The near-to-eye display device comprises a shell 1, a main support 2, a first lens 5, a second lens 6, a first support 3, a second support 4, a focal length adjusting mechanism 7, a pupil distance adjusting mechanism 8 and a view field adjusting mechanism 9. An eyepiece 111 and a display screen 112 are provided at one side of the housing 1, and the main stand 2 is rotatably installed in the housing 1 about a first direction. The first lens 5 and the second lens 6 are electrically connected with the display screen 112; the first support 3 supports a first lens 5, and the first support 3 is movably installed in the main support 2. The second bracket 4 supports the second lens 6, and the second bracket 4 is movably arranged in the main bracket 2. The focal length adjusting mechanism 7 is arranged on the main bracket 2 and used for adjusting the focal lengths of the first lens 5 and the second lens 6; the pupil distance adjusting mechanism 8 is arranged on the main support 2 and is used for driving the first lens 5 and the second lens 6 to synchronously and reversely move along a first direction; the view field adjusting mechanism 9 is mounted on the main support 2 and is used for driving the first lens 5 and the second lens 6 to synchronously and reversely rotate around a second direction, and the second direction is perpendicular to the first direction and the front-back direction.
When the user wears the near-eye display device and the head vertical surface faces forward, the first direction is the left-right direction and the second direction is the up-down direction.
An ocular 111 and a display screen 112 are arranged on one side of the shell 1, the display screen 112 is connected with the first lens 5 and the second lens 6, a focal length adjusting mechanism 7, a pupil distance adjusting mechanism 8 and a field of view adjusting mechanism 9 are arranged to realize synchronous adjustment of pupil distance, focal length and overlapped field of view so as to simulate the identification and adjustment mode of human eyes on far and near objects, therefore, pupil distance matching can be performed on different people, after the matching is completed, the relative distance, the opening and closing angle and the focal length of the camera (the first lens 5 and the second lens 6) are controlled by the focal length adjusting mechanism 7, the pupil distance adjusting mechanism 8 and the view field adjusting mechanism 9, the goal that the pupil distance, the focal length and the overlapped view field can be synchronously adjusted aiming at different observation targets is achieved, finally, the picture transmitted by the display screen 112 observed by human eyes is consistent with the image in the actual observation of the human eyes, and the vertigo of the equipment in the using process is eliminated as much as possible.
Referring to fig. 3 and 7, the focus adjustment mechanism 7 includes a first focus motor 71, a first focus assembly 72, a second focus motor 73, and a second focus assembly 74. The first focusing motor 71 is connected to the main stand 2; the first focusing assembly 72 is used for driving the first lens 5 to rotate for focusing, and the first focusing assembly 72 is connected with the first focusing motor 71 and the first lens 5. The second focusing motor 73 is connected to the main support 2; the second focusing assembly 74 is used for driving the second lens 6 to rotate for focusing, and the second focusing assembly 74 is connected with the second focusing motor 73 and the second lens 6. The first and second focus assemblies 72, 74 are belts or friction wheels or the like. The first focusing motor 71 drives the first focusing assembly 72 to rotate, so as to drive the first lens 5 to rotate for focusing, and the second focusing motor 73 drives the second focusing assembly 74 to rotate, so as to drive the second lens 6 to rotate for focusing.
The focal length adjusting mechanism 7 further comprises a first focusing wheel 75 and a second focusing wheel 76, the first focusing wheel 75 is used for driving the first focusing motor 71 to rotate, the second focusing wheel 76 is used for driving the second focusing motor 73 to rotate, the first focusing wheel 75 is connected with an output shaft of the first focusing motor 71, the first focusing wheel 75 partially extends out of the shell 1, the second focusing wheel 76 is connected with an output shaft of the second focusing motor 73, and the second focusing wheel 76 partially extends out of the shell 1. The first focus wheel 75 and the second focus wheel 76 are used to manually adjust the focal lengths of the first lens 5 and the second lens 6.
Referring to fig. 3, 6 and 9, the interpupillary distance adjusting mechanism 8 includes a first rack 83, a second rack 84, a first gear 82 and a first motor 81, the first rack 83 is extended along a first direction, and the first rack 83 is connected to the first support 3. The second rack 84 extends along the first direction, and the second rack 84 is connected to the second bracket 4. The first rack 83 and the second rack 84 are respectively engaged with two opposite sides of the first gear 82, and the first gear 82 drives the first rack 83 and the second rack 84 to synchronously and reversely move. The first motor 81 is used for driving the first gear 82 to rotate, and the first motor 81 is mounted on the main stand 2. The first motor 81 rotates to drive the first gear 82 to rotate, and drives the first rack 83 and the second rack 84 to synchronously and reversely move, so as to drive the first support 3 and the second support 4 to synchronously and reversely move, and drive the first lens 5 and the second lens 6 to synchronously and reversely move, so as to adjust the distance between the first lens 5 and the second lens 6 along the first direction, thereby achieving the purpose of changing the interpupillary distance.
The interpupillary distance adjusting mechanism 8 further comprises a poke wheel 85, the poke wheel 85 is coaxially connected with the first gear 82, and part of the poke wheel 85 extends out of the shell 1. The poking wheel 85 is used for manually adjusting the interpupillary distance, the poking wheel 85 rotates to drive the first gear 82 to rotate, the first rack 83 and the second rack 84 are driven to synchronously move in the opposite direction, the first support 3 and the second support 4 are further driven to synchronously move in the opposite direction, the first lens 5 and the second lens 6 are driven to synchronously move in the opposite direction, the distance between the first lens 5 and the second lens 6 in the first direction is adjusted, and the purpose of changing the interpupillary distance is achieved.
It will be appreciated that a screw 93 and nut 94 mechanism with opposite threads at both ends may also be used to adjust the distance between the first and second supports 3, 4 to achieve synchronous opposite movement.
Referring to fig. 4, 6, 12 and 13, the near-eye display device further includes a third bracket 33 and a fourth bracket 43, one end of the third bracket 33 is connected to the first rack 83, the other end is provided with a first sliding protrusion 333, one end of the fourth bracket 43 is connected to the second rack 84, the other end is provided with a second sliding protrusion 433, the first bracket 3 is rotatably connected in the third bracket 33 in the second direction, and the second bracket 4 is rotatably connected in the fourth bracket 43 in the second direction. The inner wall of the main support 2 is provided with a sliding groove 24 along the first direction, and the first sliding protrusion 333 and the second sliding protrusion 433 are slidably coupled in the sliding groove 24. The length direction of the first sliding projection 333 is a first direction, and the length direction of the second sliding projection 433 is a first direction. When the first gear 82 rotates, the first rack 83 and the second rack 84 are driven to synchronously and reversely move, the third bracket 33 and the fourth bracket 43 are driven to synchronously and reversely move along the first direction, and the first sliding protrusion 333 and the second sliding protrusion 433 are driven to move in the sliding slot 24. The provision of the first slide projection 333 and the second slide projection 433 ensures stable movement of the third bracket 33 and the fourth bracket 43.
Referring to fig. 3 and 8, the visual field adjusting mechanism 9 includes a first slide rail 31, a second slide rail 41, a sliding member, and a pushing member, the first slide rail 31 is disposed to extend in a first direction, and the first slide rail 31 is connected to the first bracket 3. The second slide rail 41 extends along the first direction, and the second slide rail 41 is connected to the second bracket 4. The first slide rail 31 and the second slide rail 41 are located between the first bracket 3 and the second bracket 4, and the sliding member is slidably connected with the first slide rail 31 and the second slide rail 41 respectively. The pushing assembly is mounted on the main support 2 for pushing the sliding member to move forward and backward.
When the pushing assembly pushes the sliding part to move back and forth, the sliding part pushes the first sliding rail 31 and the second sliding rail 41 to drive the first support 3 and the second support 4 to rotate synchronously and reversely around the second direction, drive the first lens 5 and the second lens 6 to rotate synchronously and reversely around the second direction, adjust the opening and closing angles of the first lens 5 and the second lens 6, and achieve the purpose of adjusting the overlapped view fields.
Referring to fig. 6 and 8, the pushing assembly includes a screw 93, a nut 94 and a driving assembly, the screw 93 is connected to the sliding member at one end, the screw 93 is slidably mounted on the main support 2, and the nut 94 is mounted on the screw 93. The transmission assembly connects the first motor 81 and the nut 94 to drive the nut 94 to rotate. The first motor 81 rotates to drive the nut 94 to rotate through the transmission assembly, so as to drive the screw 93 to move and push the sliding part to move. The first motor 81 is connected with the transmission assembly and the first gear 82, so that synchronous adjustment of the field of view and the interpupillary distance is realized.
Referring to fig. 6 and 10, the nut 94 is provided with an external gear 941, and the transmission assembly includes a second gear 95 and an intermediate gear 96 connecting the second gear 95 and the external gear 941, the second gear 95 being coaxially connected to the first gear 82. One or more intermediate gears 96 may be provided. The first motor 81 rotates to drive the second gear 95 to rotate, and the intermediate gear 96 to rotate, which drives the nut 94 to rotate.
Referring to fig. 4, 8 and 11, the sliding member includes a sliding block 91 and a guide rod 92, the sliding block 91 is connected to the screw 93, a through hole 911 is formed in the sliding block 91 along the second direction, the through hole 911 is axially perpendicular to the first direction and the front-back direction, the guide rod 92 penetrates through the through hole 911, the main support 2 is provided with a first limiting plate 211 and a second limiting plate 212, the first limiting plate 211 is provided with a first guide groove 2111 along the front-back direction, the second limiting plate 212 is provided with a second guide groove 2121 along the front-back direction, and two ends of the guide rod 92 are respectively slidably disposed in the first guide groove 2111 and the second guide groove 2121. The limiting guide rod 92 moves in the first guide groove 2111 and the second guide groove 2121, so that the guide rod 92 can only move in the front-back direction, the sliding block 91 can only move back and forth, the circumferential movement of the sliding block 91 in the axial direction of the screw rod 93 is limited, the sliding block 91 is connected with the screw rod 93, the circumferential movement of the screw rod 93 is limited, the transmission efficiency can be guaranteed, and the screw rod 93 can drive the sliding block 91 to move back and forth.
The sliding part can also be a nut 94 and a guide rod 92, and the transmission component drives a screw 93 to rotate, drives the nut 94 to move back and forth, drives the guide rod 92 to move back and forth, pushes the first slide rail 31 and the second slide rail 41, drives the first bracket 3 and the second bracket 4 to synchronously and reversely rotate around the second direction, drives the first lens 5 and the second lens 6 to synchronously and reversely rotate around the second direction, adjusts the opening and closing angle of the first lens 5 and the second lens 6, and achieves the purpose of adjusting the overlapped view field of the first lens 5 and the second lens 6.
Referring to fig. 4, the main stand 2 is provided with a pivot shaft 23 in a first direction, the pivot shaft 23 is rotatably coupled to the housing 1, and a rotating wheel 231 is mounted on the pivot shaft 23 where the main stand 2 is coupled to the housing 1, the rotating wheel 231 being located outside the housing 1. The rotating wheel 231 rotates to drive the main support 2 to rotate around the first direction in the housing 1, so as to adjust the pitch angles of the first lens 5 and the second lens 6 on the main support 2.
Referring to fig. 5 and 6, a first rib 22 is arranged on the main support 2 along a first direction, a first stop 221, a second stop 222 and a stop 223 are arranged on the first rib 22, and the first rack 83 is located between the first stop 221 and an inner wall surface of the main support 2, so that when the first gear 82 rotates, the first stop 221 and the inner wall surface of the main support 2 can limit the first rack 83 to move along the first direction, and the movement stability of the first rack 83 is guaranteed. The second rack 84 is located between the second stopper 222 and the baffle 223, and when the first gear 82 rotates, the second stopper 222 and the baffle 223 can limit the second rack 84 to move along the first direction, so that the stability of the movement of the second rack 84 is guaranteed.
The middle part of the main bracket 2 is provided with a second rib plate 21 along the second direction, and the second rib plate 21 is positioned between the first bracket 3 and the second bracket 4. The second rib plate 21 is provided with a shifting hole 213, the screw 93 is slidably connected in the shifting hole 213, and the first limiting plate 211 and the second limiting plate 212 are connected on the second rib plate 21.
Referring to fig. 3 and 4, a toggle groove 25 is formed in the edge of the main support 2, the toggle groove 25 corresponds to the toggle wheel 85, and the upper end portion of the toggle wheel 85 is exposed from the toggle groove 25, so that the toggle wheel 85 can be conveniently adjusted by a human hand.
Two lens holes 121 are formed in the front shell 12, and the two lens holes 121 correspond to the positions of the first lens 5 and the second lens 6, so that the first lens 5 and the second lens 6 can conveniently view a frame. Two focusing slots 123 are formed in the edge of the front shell 12, the two focusing slots 123 correspond to the positions of the first focusing wheel 75 and the second focusing wheel 76, and the upper end parts of the first focusing wheel 75 and the second focusing wheel 76 are exposed out of the focusing slots 123, so that a person can conveniently and manually shift the first focusing wheel 75 and the second focusing wheel 76.
The shell body 1 is internally provided with a circuit board 13, the circuit board 13 is electrically connected with the first lens 5, the second lens 6, the first focusing motor 71, the second focusing motor 73 and the first motor 81, the circuit board 13 can be powered by an external power supply or an internal power supply, the circuit board 13 is provided with a synchronous controller, and the synchronous controller is electrically connected with the first focusing motor 71, the second focusing motor 73 and the first motor 81.
Referring to fig. 12 and 14, the third bracket 33 includes a first link plate 332 and two first bridge plates 331, the first link plate 332 is disposed in the second direction, the first bridge plates 331 are disposed in the front-rear direction, the two first bridge plates 331 are coupled at both ends of the first link plate 332, the two first bridge plates 331 are coupled at both ends of the first bracket 3, the first rack 83 is coupled to the first bridge plates 331, and the first sliding protrusion 333 is coupled to the other first bridge plate 331. First splint 331 is last to be provided with first commentaries on classics hole 3311, and first commentaries on classics hole 3311 axial direction is the second direction, is provided with first rotatory arch 32 on the first support 3, and first rotatory arch 32 axial direction is the second direction, and first rotatory arch 32 is connected in first commentaries on classics hole 3311, and the guarantee first support 3 can rotate around the second direction.
Referring to fig. 13 and 15, the fourth bracket 43 includes a second connection plate 432 and two second plates 431, the second connection plate 432 is disposed in the second direction, the second plates 431 are disposed in the front and rear direction, the two second plates 431 are coupled at both ends of the second connection plate 432, the two second plates 431 are coupled at both ends of the second bracket 4, the second rack 84 is coupled to the second plates 431, and the second sliding protrusion 433 is coupled to the other second plates 431. The second rotating hole 4311 is formed in the second clamping plate 431, the axial direction of the second rotating hole 4311 is the second direction, the second rotating protrusion 42 is arranged on the second support 4, the axial direction of the second rotating protrusion 42 is the second direction, the second rotating protrusion 42 is rotatably connected to the second rotating hole 4311, and the second support 4 can rotate around the second direction.
The working principle is as follows: when the user uses the camera, personal information is input through keys, the pupil distance parameters are mainly collected by the pupil distance testing equipment, and the pupil distance is automatically adjusted by the input ocular 111 and the display screen 112 according to the information identified by the first lens 5 and the second lens 6 to adapt to an observer.
When the near-eye display device is assembled, a user wears the near-eye display device on the eyes, the stored personal information is called out, and the pupil distance of the 111 end of the ocular lens is automatically adjusted, so that the effect of observing the screen by the eyes of the user is optimal.
The pupil distance is 65mm as default before the pupil distance is used, the optical axes of the first lens 5 and the second lens 6 are parallel, the pitch angle is 0 degrees, and the optical axis distance between the first lens 5 and the second lens 6 is 65 mm.
When the device of the invention is used, the first focusing motor 71, the second focusing motor 73 and the first motor 81 are connected with a synchronous controller, the three components can be manually shifted (the first focusing wheel 75, the second focusing wheel 76 and the shifting wheel 85) to perform zero initialization, when different people use the device, the three components are firstly adjusted to proper positions according to respective interpupillary distances, and in addition, different scene modes can be set for selection, for example, the method can comprise the following steps: night mode (for assisting outdoor enthusiasts in night activities), driving mode (for assisting driving), reading mode (for reading on-board instrumentation and identifying individual operating component information).
When running at night, the night mode is selected, the visual field distance is A, after the synchronous controller receives a set signal, the first focusing motor 71 and the second focusing motor 73 synchronously adjust the focal length to be A1, corresponding to the night visual field distance, the first motor 81 drives the second gear 95 to rotate according to a set rule, the rotation is transmitted to the nut 94 through the intermediate gear 96, so that the nut 94 rotates, the nut 94 is connected with the screw 93, the screw 93 is connected with the slider 91, the slider 91 is connected with the guide rod 92, because the two ends of the guide rod 92 are in limit connection in the first guide slot 2111 and the second guide slot 2121, the circumferential movement of the guide rod 92 along the axial direction of the screw 93 is limited, the circumferential movement of the screw 93 is limited, the screw 93 is forced to do front-back linear movement, the guide rod 92 is driven to move back and forth, the guide rod 92 is driven to move in the first slideway 311 and the second slideway 411, and the first sliding rail 31 and the second sliding rail 41 are pushed to synchronously rotate reversely around the second direction, thereby pushing the first bracket 3 and the second bracket 4 to synchronously and reversely rotate around the second direction and adjusting the size of the overlapped part of the lens view fields. Through the adjustment, the image collected by the lens accords with the observation mode of human eyes, and finally the image collected by the video is processed and displayed on the display screen 112 at the end of the eyepiece 111, so that the picture observed by the human eyes on the display screen 112 is consistent with the picture observed by actual naked eyes, and the difference between the brain and the vision is eliminated, thereby achieving the purpose of eliminating dizziness.
When driving, a driving mode is selected, a view field needs to cover 3 lanes, the view field angle is B, after a controller receives a set signal, a first motor 81 drives a second gear 95 to rotate according to a set rule, the second gear is transmitted to a nut 94 through an intermediate gear 96, the nut 94 is rotated, the nut 94 is connected with a screw 93, the screw 93 is connected with a slider 91, the slider 91 is connected with a guide rod 92, because two ends of the guide rod 92 are limited and connected in a first guide groove 2111 and a second guide groove 2121, the circumferential motion of the guide rod 92 along the axial direction of the screw 93 is limited, the circumferential motion of the screw 93 is limited, so that the screw 93 is forced to do front-back linear motion, when the screw 93 moves, the guide rod 92 is driven to move back and forth, the guide rod 92 is driven to move in a first slide way 311 and a second slide way 411, the first slide way 31 and the second slide way 41 are driven to synchronously rotate reversely around a second direction, and accordingly the first support 3 and the second support 4 are driven to synchronously rotate reversely around the second direction, and adjusting the size of the overlapped part of the lens view fields and the view field angle covering the lane. The first focusing motor 71 and the second focusing motor 73 are driven by the synchronization controller to perform synchronous focusing according to a signal from the first motor 81, so that the focal distance range is within the visual field range. Through the adjustment, the image acquired by the lens accords with the observation mode of human eyes, and finally the image acquired by the video is processed and displayed on the display screen 112 at the end of the eyepiece 111, so that the picture observed by the human eyes on the display screen 112 is consistent with the picture observed by actual naked eyes, the difference between the brain and the vision is eliminated, and safe auxiliary driving is achieved.
When reading, selecting a reading mode, setting the focal length to be C according to the reading habit and the reading distance of a person, after receiving a setting signal, the controller synchronously adjusts the focal length to be C by the first focusing motor 71 and the second focusing motor 73, corresponding to the focal length when reading, the first motor 81 drives the second gear 95 to rotate according to a set rule, and transmits the rotation to the nut 94 through the intermediate gear 96, so that the nut 94 rotates, the nut 94 is connected with the screw 93, the screw 93 is connected with the slider 91, the slider 91 is connected with the guide rod 92, because two ends of the guide rod 92 are limited and connected in the first guide slot 2111 and the second guide slot 2121, the circumferential motion of the guide rod 92 along the axial direction of the screw 93 is limited, the screw 93 is forced to do a front-back linear motion, when the screw 93 moves, the guide rod 92 is driven to move back and forth, the guide rod 92 is driven to move in the first slideway 311 and the second slideway 411, the first slide rail 31 and the second slide rail 41 are pushed to synchronously and reversely rotate around the second direction, so that the first support 3 and the second support 4 are pushed to synchronously and reversely rotate around the second direction, and the size of the overlapped part of the lens fields is adjusted. Through the adjustment, the image collected by the lens accords with the observation mode of human eyes, and finally the image collected by the video is processed and displayed on the display screen 112 at the end of the eyepiece 111, so that the picture observed by the human eyes on the display screen 112 is consistent with the picture observed by actual naked eyes, and the difference between the brain and the vision is eliminated, thereby achieving the purpose of eliminating dizziness.
After the implementation of the invention is finished, the using habit of the user is recorded and is filed for directly calling out for use next time.
The above description is intended only to serve as an alternative embodiment of the present application and not as a limitation on the present application, and any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (13)
1. A near-eye display device, comprising:
one side of the shell is provided with an eyepiece and a display screen;
the main bracket is rotatably arranged in the shell around a first direction;
the first lens is electrically connected with the display screen;
the second lens is electrically connected with the display screen;
the first bracket supports the first lens, and is movably arranged in the main bracket;
the second bracket supports the second lens, and is movably arranged in the main bracket;
the focal length adjusting mechanism is arranged on the main bracket and used for adjusting the focal lengths of the first lens and the second lens;
the pupil distance adjusting mechanism is arranged on the main support and is used for driving the first lens and the second lens to synchronously and reversely move along the first direction;
and the view field adjusting mechanism is arranged on the main support and used for driving the first lens and the second lens to synchronously and reversely rotate around a second direction, and the second direction is vertical to the first direction and the front-back direction.
2. The near-eye display device of claim 1, wherein the focus adjustment mechanism comprises:
the first focusing motor is connected to the main bracket;
the first focusing assembly is used for driving the first lens to rotate and focus, and the first focusing assembly is connected with the first focusing motor and the first lens;
the second focusing motor is connected to the main bracket;
and the second focusing assembly is used for driving the second lens to rotate for focusing, and the second focusing assembly is connected with the second focusing motor and the second lens.
3. The near-eye display device of claim 2, wherein the focus adjustment mechanism further comprises a first focus wheel for driving the first focus motor to rotate and a second focus wheel for driving the second focus motor to rotate, the first focus wheel being coupled to an output shaft of the first focus motor, the first focus wheel partially extending out of the housing, the second focus wheel being coupled to an output shaft of the second focus motor, the second focus wheel partially extending out of the housing.
4. The near-eye display device of any one of claims 1-3 wherein the interpupillary distance adjustment mechanism comprises:
the first rack extends along the first direction and is connected with the first bracket;
the second rack extends along the first direction and is connected with the second bracket;
the first gear drives the first rack and the second rack to synchronously and reversely move; and the number of the first and second groups,
the first motor is used for driving the first gear to rotate, and the first motor is arranged on the main bracket;
the first rack and the second rack are respectively engaged with opposite sides of the first gear.
5. The near-eye display device of claim 4, wherein the interpupillary distance adjustment mechanism further comprises a toggle wheel coaxially coupled to the first gear, the toggle wheel partially extending out of the housing.
6. The near-eye display device of claim 4, wherein the field of view adjustment mechanism comprises:
the first sliding rail extends along the first direction and is connected with the first support;
the second sliding rail extends along the first direction and is connected with the second support;
the sliding part is respectively connected with the first sliding rail and the second sliding rail in a sliding manner; and (c) a second step of,
and the pushing assembly is arranged on the main bracket and used for pushing the sliding piece to move back and forth.
7. The near-eye display device of claim 4, further comprising a third bracket and a fourth bracket, wherein one end of the third bracket is connected to the first rack, and the other end of the third bracket is provided with a first sliding protrusion;
a sliding groove is formed in the inner wall of the main support along the first direction, and the first sliding protrusion and the second sliding protrusion are connected in the sliding groove in a sliding mode.
8. The near-eye display device according to claim 4, wherein a first rib is arranged on the main bracket along a first direction, a first stop block, a second stop block and a baffle are arranged on the first rib, the first rack is positioned between the first stop block and the inner wall surface of the main bracket, and the second rack is positioned between the second stop block and the baffle.
9. The near-eye display device of claim 6, wherein the pushing assembly comprises:
one end of the screw rod is connected with the sliding piece, and the screw rod is slidably arranged on the main bracket;
the nut is arranged on the screw rod;
and the transmission assembly is connected with the first motor and the nut so as to drive the nut to rotate.
10. The near-eye display device of claim 9 wherein the nut has an external gear thereon, the transmission assembly comprising a second gear and an intermediate gear connecting the second gear and the external gear, the second gear being coaxially connected to the first gear.
11. The near-eye display device according to claim 9, wherein the slider includes a slider and a guide rod, the slider has a through hole along the second direction, the guide rod passes through the through hole, the main support has a first limiting plate and a second limiting plate, the first limiting plate has a first guide groove along the front-back direction, the second limiting plate has a second guide groove along the front-back direction, and two ends of the guide rod are slidably disposed in the first guide groove and the second guide groove, respectively.
12. The near-eye display device of claim 11, wherein the first slide rail has a first slide along the first direction, the second slide rail has a second slide along the first direction, and the guide bar passes through the first slide and the second slide.
13. The near-eye display device of any one of claims 1-3 wherein a swivel wheel is mounted on a pivot connecting the main support to the housing, the swivel wheel being located outside the housing.
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| CN202210641832.6A CN114721155B (en) | 2022-06-08 | 2022-06-08 | Near-to-eye display device |
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| CN202210641832.6A CN114721155B (en) | 2022-06-08 | 2022-06-08 | Near-to-eye display device |
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| CN114721155B (en) | 2022-09-16 |
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