CN104898278A - Helmet-mounted display provided with lens translation adjustment mechanism - Google Patents
Helmet-mounted display provided with lens translation adjustment mechanism Download PDFInfo
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- CN104898278A CN104898278A CN201510141293.XA CN201510141293A CN104898278A CN 104898278 A CN104898278 A CN 104898278A CN 201510141293 A CN201510141293 A CN 201510141293A CN 104898278 A CN104898278 A CN 104898278A
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- 230000007246 mechanism Effects 0.000 title claims abstract description 52
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 abstract description 7
- 239000000919 ceramic Substances 0.000 description 4
- 230000016776 visual perception Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000003993 interaction Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000005094 computer simulation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004438 eyesight Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Abstract
The invention relates to the mechanical field, and relates to a helmet-mounted display provided with a lens translation adjustment mechanism, which comprises a helmet-mounted display body. The helmet-mounted display body is provided with at least one lens translation adjustment mechanism; each lens translation adjustment mechanism comprises a lens frame provided with a lens, and the outer contour of the lens frame has a gear-shaped structure; the front end surface and the rear end surface of the lens are rotary symmetrical surfaces; the lower end of the lens frame is provided with a track for rolling of the lens frame; the track is provided with a first straight rack engaged with the outer contour of the lens frame; the upper end of the lens frame is provided with a driving mechanism for driving the lens frame to roll along the track; the driving mechanism comprises a second straight rack engaged with the outer contour of the lens frame; the second straight rack has a horizontal movement direction; and the helmet-mounted display body is provided with a shell, and the first straight rack is fixedly connected with the shell. Translation adjustment can be carried out on the lens conveniently, and stop at any position can be realized.
Description
Technical Field
The invention relates to the field of machinery, in particular to a helmet display.
Background
The virtual reality is a virtual world which utilizes computer simulation to generate a three-dimensional space, provides simulation of senses of vision, hearing, touch and the like for a user, and enables the user to observe objects in the three-dimensional space in time without limitation as if the user is in his own environment. Virtual reality systems are computer-generated interactive virtual environments that act on users through visual, audio, tactile, etc. to create a sense of being personally on the scene. Human-computer interaction in virtual reality far exceeds the traditional mode of a keyboard and a mouse, and a three-dimensional interaction technology, a voice recognition technology and a voice input technology become important human-computer interaction means by utilizing sensor equipment such as a digital helmet and a digital glove. The helmet display component is the key for realizing the virtual reality, and the lenses in the helmet displays on the market are all immovable, which brings great inconvenience to users in the experience process.
Disclosure of Invention
The present invention is directed to a helmet-mounted display with a lens translation adjusting mechanism to solve the above-mentioned problems.
The technical problem solved by the invention can be realized by adopting the following technical scheme:
a helmet display with a lens translation adjusting mechanism comprises a helmet display main body and is characterized in that the helmet display main body is provided with at least one lens translation adjusting mechanism, the lens translation adjusting mechanism comprises a spectacle frame provided with a lens, and the outline of the spectacle frame is of a gear-shaped structure;
the front end surface and the rear end surface of the lens are both rotationally symmetrical surfaces;
the lower end of the mirror bracket is provided with a track for the mirror bracket to roll, the track is provided with a first straight rack meshed with the outer contour of the mirror bracket, the upper end of the mirror bracket is provided with a driving mechanism for driving the mirror bracket to roll along the track, the driving mechanism comprises a second straight rack meshed with the outer contour of the mirror bracket, and the moving direction of the second straight rack is the horizontal direction;
the helmet display main body comprises a shell, and the first straight rack is fixedly connected with the shell.
The traditional fixed spectacle frame is improved into a movable spectacle frame, so that the lenses can be conveniently adjusted in a translation mode, the lenses can stay at any position, the visual perception of a human body during viewing is improved, and in addition, the front end surface and the rear end surface of each lens are rotationally symmetrical surfaces, so that the spectacle frame realizes the translation of the lenses in the rolling process and the visual perception is not influenced.
When the invention is used, the first straight rack is kept fixed, the second straight rack can move left and right, and the translation of the second straight rack can drive the spectacle frame to roll, thereby realizing the translation of the circle center of the spectacle lens.
The lens translation adjustment mechanism is located within the housing.
A spring is fixed above the second straight rack, and an included angle between the elastic direction of the spring and the horizontal direction is 90 degrees.
The invention keeps the second spur rack and the outer contour of the spectacle frame in a meshed state all the time through the spring.
A boss is fixedly connected above the spring, a slide way used for moving the boss is arranged on the inner wall of the shell, and the guide direction of the slide way is parallel to the moving direction of the second spur rack.
The boss is always pressed on the shell under the action of the spring force, and the lens stays at any position by the friction between the boss and the sliding rail.
The driving mechanism comprises an adjusting key, the adjusting key is located on the outer wall of the shell, and the adjusting key is connected with the second spur rack.
The motion state of the second spur rack is convenient to adjust through the adjusting key.
The lower end of the adjusting key is connected with a connecting rod, and the adjusting key is connected with the second straight rack through the connecting rod;
a sliding groove is formed in the outer wall of the shell, and the width of the connecting rod is matched with that of the sliding groove.
Is convenient for manual adjustment.
The adjusting key is connected with a control system, the control system is connected with an electric motor, the electric motor is connected with a transmission mechanism, and the transmission mechanism is connected with the second spur rack.
Thereby realizing electric adjustment.
The helmet display main body is provided with two mutually independent lens translation adjusting mechanisms. The two lenses can be adjusted respectively.
The two mirror frames are mounted on the shell, and the two adjusting keys are respectively connected with the two second straight racks;
the shell is internally provided with one track, and the track is provided with one first straight rack.
Thereby realize two mirror holders and roll on a first straight rack, be convenient for production and installation.
The upper end of the spring is connected with a boss, and the boss is connected with a locking mechanism.
The invention is provided with a locking mechanism, so that the meshing state of the second straight rack and the outer contour of the spectacle frame is correspondingly adjusted. Thereby realizing self-locking and anti-rolling.
The rail is provided with two parallel baffles, namely a first baffle and a second baffle, wherein the first baffle is perpendicular to the horizontal plane, and the first baffle is positioned in front of the second baffle.
The distance between the first baffle and the baffle is equal to the thickness of the mirror bracket;
the rear end face of the first baffle and the front end face of the baffle are coated with ceramic layers.
Has the function of rust prevention. In addition, the friction force between the mirror bracket and the first baffle and the friction force between the mirror bracket and the second baffle are reduced in the process of rolling the mirror bracket through the ceramic layer.
The front end face of the lens is used as a first curved face, the rear end face of the lens is used as a second curved face, the center of the first curved face is in an outward convex shape, the edge of the first curved face is in an inward concave shape, and the second curved face is in an outward convex shape.
The eyepiece structure adopted by the invention is used for displaying of a virtual reality device, the traditional double-convex eyepiece structure is optimized, and on the premise of 2k resolution, the optical lens with distortion coefficient lower than 10%, small chromatic aberration, 120-degree field angle, proper magnification and good imaging quality in a small eccentric range in the y direction can be realized in a specific space range.
The first curved surface is an aspheric surface, and the aspheric surface coefficient of the first curved surface
the second curved surface is an aspheric surface, and the aspheric surface coefficient of the second curved surface
the central thickness of the lens is greater than the edge thickness of the lens; the thickness of the lens is increased from the center to the edge;
the center thickness of the lens is 12mm-20mm, and the edge thickness of the lens is 1mm-9 mm.
Preferably, the lens has a central thickness of 16mm and an edge thickness of 5 mm. Is convenient for injection molding processing.
Drawings
FIG. 1 is a schematic view of a lens translation adjustment mechanism according to the present invention;
FIG. 2 is a schematic view of a lens of the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below with the accompanying drawings.
Referring to fig. 1 and 2, a helmet display with a lens 2 translation adjusting mechanism comprises a helmet display main body, wherein the helmet display main body is provided with at least one lens 2 translation adjusting mechanism, the lens 2 translation adjusting mechanism comprises a spectacle frame 1 provided with a lens 2, and the outer contour of the spectacle frame 1 is in a gear-shaped structure; the front end surface and the rear end surface of the lens 2 are both rotationally symmetrical surfaces; the lower end of the mirror bracket 1 is provided with a track for the mirror bracket 1 to roll, the track is provided with a first straight rack 3 meshed with the outer contour of the mirror bracket 1, the upper end of the mirror bracket 1 is provided with a driving mechanism for driving the mirror bracket 1 to roll along the track, the driving mechanism comprises a second straight rack 4 meshed with the outer contour of the mirror bracket 1, and the moving direction of the second straight rack 4 is the horizontal direction; the helmet display main body comprises a shell, and the first straight rack 3 is fixedly connected with the shell. The traditional fixed spectacle frame 1 is improved into a movable spectacle frame, so that the lens 2 can be conveniently adjusted in a translation mode, the lens can stay at any position, the visual perception of a human body during viewing is improved, and in addition, the front end surface and the rear end surface of the lens 2 are rotationally symmetrical surfaces, so that the lens 2 can be translated in the rolling process of the spectacle frame 1, and the visual perception cannot be influenced. When the spectacle frame is used, the first straight rack 3 is kept fixed, the second straight rack 4 can move left and right, and the translation of the second straight rack 4 can drive the spectacle frame 1 to roll, so that the translation of the circle center of the spectacle lens 2 is realized.
The lens 2 translation adjusting mechanism is positioned in the shell.
A spring 5 is fixed above the second straight rack 4, and an included angle between the elastic direction of the spring 5 and the horizontal direction is 90 degrees. The invention keeps the second spur rack 4 and the outer contour of the spectacle frame 1 in a meshing state all the time through the spring 5.
A boss is fixedly connected above the spring 5, a slide way for moving the boss is arranged on the inner wall of the shell, and the guide direction of the slide way is parallel to the moving direction of the second spur rack 4. The boss is pressed on the shell all the time under the action of the 5-force of the spring, and the lens 2 stays at any position by the friction between the boss and the sliding rail.
The driving mechanism comprises an adjusting key which is positioned on the outer wall of the shell and is connected with the second spur rack 4. The invention is convenient to adjust the motion state of the second spur rack 4 through the adjusting key.
The lower end of the adjusting key is connected with a connecting rod, and the adjusting key is connected with a second straight rack 4 through the connecting rod; a sliding groove is formed in the outer wall of the shell, and the width of the connecting rod is matched with the width of the sliding groove. Is convenient for manual adjustment.
The adjusting key is connected with a control system, the control system is connected with a motor, the motor is connected with a transmission mechanism, and the transmission mechanism is connected with the second spur rack 4. Thereby realizing electric adjustment.
The helmet display main body is provided with two mutually independent lens 2 translation adjusting mechanisms. The two lenses 2 can be adjusted separately. Two lens frames 1 are arranged on the shell, and two adjusting keys are arranged and are respectively connected with two second straight racks 4; a track is arranged in the shell, and a first straight rack 3 is arranged on the track. Thereby realizing that two mirror holders 1 roll on a first straight rack 3, being convenient for production and installation.
The upper end of the spring 5 is connected with a boss which is connected with a locking mechanism. The invention correspondingly adjusts the engaging state of the second spur rack 4 and the outer contour of the spectacle frame 1 by arranging a locking mechanism. Thereby realizing self-locking and anti-rolling.
The track is provided with two parallel baffles, namely a first baffle and a second baffle, wherein the first baffle is perpendicular to the horizontal plane and is positioned in front of the second baffle. The distance between the first baffle and the baffle is equal to the thickness of the spectacle frame; the rear end face of the first baffle and the front end face of the baffle are coated with ceramic layers. Has the function of rust prevention. In addition, the friction force between the mirror bracket and the first baffle and the friction force between the mirror bracket and the second baffle are reduced in the process of rolling the mirror bracket through the ceramic layer.
The front end surface of the lens 2 is used as a first curved surface 11, the rear end surface of the lens 2 is used as a second curved surface 12, the center of the first curved surface 11 is in an outward convex shape, the edge of the first curved surface 11 is in an inward concave shape, and the second curved surface 12 is in an outward convex shape. The eyepiece structure adopted by the invention is used for displaying of a virtual reality device, the traditional double-convex eyepiece structure is optimized, and on the premise of 2k resolution, the optical lens with distortion coefficient lower than 10%, small chromatic aberration, 120-degree field angle, proper magnification and good imaging quality in a small eccentric range in the y direction can be realized in a specific space range.
The first curved surface 11 is an aspheric surface, and the aspheric coefficient of the first curved surface 11
the second curved surface 12 is an aspheric surface, and the aspheric coefficient of the second curved surface 12
the central thickness of the lens 2 is greater than the edge thickness of the lens 2; the thickness of the lens 2 increases from the center to the edge; the center thickness of the lens 2 is 12mm-20mm, and the edge thickness of the lens 2 is 1mm-9 mm. Preferably, the lens 2 has a center thickness of 16mm and the lens 2 has an edge thickness of 5 mm. Is convenient for injection molding processing.
The foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A helmet display with a lens translation adjusting mechanism comprises a helmet display main body and is characterized in that the helmet display main body is provided with at least one lens translation adjusting mechanism, the lens translation adjusting mechanism comprises a spectacle frame provided with a lens, and the outline of the spectacle frame is of a gear-shaped structure;
the front end surface and the rear end surface of the lens are both rotationally symmetrical surfaces;
the lower end of the mirror bracket is provided with a track for the mirror bracket to roll, the track is provided with a first straight rack meshed with the outer contour of the mirror bracket, the upper end of the mirror bracket is provided with a driving mechanism for driving the mirror bracket to roll along the track, the driving mechanism comprises a second straight rack meshed with the outer contour of the mirror bracket, and the moving direction of the second straight rack is the horizontal direction;
the helmet display main body comprises a shell, and the first straight rack is fixedly connected with the shell.
2. The head-mounted display provided with a lens translation adjusting mechanism according to claim 1, wherein: a spring is fixed above the second straight rack, and an included angle between the elastic direction of the spring and the horizontal direction is 90 degrees.
3. A head-mounted display provided with a lens translation adjustment mechanism according to claim 2, wherein: a boss is fixedly connected above the spring, a slide way used for moving the boss is arranged on the inner wall of the shell, and the guide direction of the slide way is parallel to the moving direction of the second spur rack.
4. A head-mounted display provided with a lens translation adjustment mechanism according to claim 3, wherein: the driving mechanism comprises an adjusting key, the adjusting key is located on the outer wall of the shell, and the adjusting key is connected with the second spur rack.
5. The head-mounted display provided with a lens translation adjusting mechanism according to claim 4, wherein: the lower end of the adjusting key is connected with a connecting rod, and the adjusting key is connected with the second straight rack through the connecting rod;
a sliding groove is formed in the outer wall of the shell, and the width of the connecting rod is matched with that of the sliding groove.
6. The head-mounted display provided with a lens translation adjusting mechanism according to claim 4, wherein: the adjusting key is connected with a control system, the control system is connected with an electric motor, the electric motor is connected with a transmission mechanism, and the transmission mechanism is connected with the second spur rack.
7. The head-mounted display provided with a lens translation adjusting mechanism according to claim 4, wherein: the helmet display main body is provided with two mutually independent lens translation adjusting mechanisms;
the two mirror frames are mounted on the shell, and the two adjusting keys are respectively connected with the two second straight racks;
the shell is internally provided with one track, and the track is provided with one first straight rack.
8. A head-mounted display provided with a lens translation adjustment mechanism according to claim 3, wherein: the boss is connected with a locking mechanism.
9. The head-mounted display provided with a lens translation adjusting mechanism according to claim 1, wherein: the front end face of the lens is used as a first curved face, the rear end face of the lens is used as a second curved face, the center of the first curved face is in an outward convex shape, the edge of the first curved face is in an inward concave shape, and the second curved face is in an outward convex shape.
10. The head-mounted display provided with a lens translation adjustment mechanism according to claim 9, wherein: the first curved surface is an aspheric surface, and the aspheric surface coefficient of the first curved surface
；
the second curved surface is an aspheric surface, and the aspheric surface coefficient of the second curved surface
the central thickness of the lens is greater than the edge thickness of the lens; the thickness of the lens is increased from the center to the edge;
the center thickness of the lens is 12mm-20mm, and the edge thickness of the lens is 1mm-9 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510141293.XA CN104898278B (en) | 2015-03-27 | 2015-03-27 | A kind of Helmet Mounted Display provided with eyeglass translational controlling mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510141293.XA CN104898278B (en) | 2015-03-27 | 2015-03-27 | A kind of Helmet Mounted Display provided with eyeglass translational controlling mechanism |
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| CN104898278A true CN104898278A (en) | 2015-09-09 |
| CN104898278B CN104898278B (en) | 2017-12-26 |
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| CN201510141293.XA Active CN104898278B (en) | 2015-03-27 | 2015-03-27 | A kind of Helmet Mounted Display provided with eyeglass translational controlling mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105911694A (en) * | 2016-03-30 | 2016-08-31 | 努比亚技术有限公司 | Virtual reality (VR) device and mobile terminal thereof |
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| CN1470227A (en) * | 2002-07-22 | 2004-01-28 | 林超群 | Dynamic lens vision training apparatus and method thereof |
| JP2009288612A (en) * | 2008-05-30 | 2009-12-10 | Canon Inc | Binocular device |
| CN201965344U (en) * | 2010-12-07 | 2011-09-07 | 沈国宝 | Polaroid glasses with adjustable transmittance |
| CN103399411A (en) * | 2013-08-16 | 2013-11-20 | 珠海真幻科技有限公司 | Head-wearing 3D vision assisting device and 3D optical system |
| CN103760628A (en) * | 2013-12-24 | 2014-04-30 | 青岛歌尔声学科技有限公司 | Lens, camera lens with lens and head-wearing displayer |
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2015
- 2015-03-27 CN CN201510141293.XA patent/CN104898278B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0551781A1 (en) * | 1991-12-27 | 1993-07-21 | Sony Corporation | Goggle type image display apparatus |
| CN1470227A (en) * | 2002-07-22 | 2004-01-28 | 林超群 | Dynamic lens vision training apparatus and method thereof |
| JP2009288612A (en) * | 2008-05-30 | 2009-12-10 | Canon Inc | Binocular device |
| CN201965344U (en) * | 2010-12-07 | 2011-09-07 | 沈国宝 | Polaroid glasses with adjustable transmittance |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105911694A (en) * | 2016-03-30 | 2016-08-31 | 努比亚技术有限公司 | Virtual reality (VR) device and mobile terminal thereof |
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| CN104898278B (en) | 2017-12-26 |
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