CN211928306U - AR optical structure and AR glasses thereof - Google Patents
AR optical structure and AR glasses thereof Download PDFInfo
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- CN211928306U CN211928306U CN202020726673.6U CN202020726673U CN211928306U CN 211928306 U CN211928306 U CN 211928306U CN 202020726673 U CN202020726673 U CN 202020726673U CN 211928306 U CN211928306 U CN 211928306U
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Abstract
The utility model relates to a AR optical structure and AR glasses thereof, this AR optical structure include display screen, first focusing lens, two cemented lens, reflection optical element and imaging element, first focusing lens sets up the display screen with between the two cemented lens, just the display screen first focusing lens and two cemented lens are in coaxially, imaging element sets up in people's eye one side, reflection optical element sets up two cemented lens with between the imaging element. The utility model provides a AR optical structure sets up through the cooperation of two cemented lens and reflection optical element, has improved the light path overall arrangement, can optimize the colour difference to a certain extent, reduces machining tolerance sensitivity, has prolonged the total length of light path simultaneously, has promoted key parameters such as the optimization space of system and angle of vision angle.
Description
Technical Field
The utility model belongs to the technical field of augmented reality, especially, relate to AR optical structure and AR glasses thereof.
Background
Augmented Reality (AR) is an integrated technology in which virtual world information is superimposed onto real world information through an optical system, and entity information which is difficult to experience in a certain time range of the real world originally is superimposed onto the real world through the existing scientific technology after analog simulation, and is perceived by people so as to achieve sensory experience beyond Reality. Since the quality of the superposition of virtual and real information directly affects the visual experience of the client, a good optical system is of great importance. In addition to the rationality of the power distribution itself, the space occupied by the system is also an important factor limiting the performance of the optical system, which can affect the size of the imaging field of view, the resolution and the processing tolerance.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a can prolong the total length of system, improve AR optical structure and AR glasses in design optimization space.
The utility model discloses a first aspect discloses an AR optical structure, including display screen, first focusing lens, two cemented lens, reflection optical element and imaging element, first focusing lens sets up the display screen with between the two cemented lens, just the display screen first focusing lens and two cemented lens are in coaxially, imaging element sets up in people's eye one side, reflection optical element sets up two cemented lens with between the imaging element, the optical image that the display screen produced passes through in proper order first focusing lens's focus, the extension of two cemented lens, reflection optical element reflects to imaging element, and imaging element enlargies the formation of image.
Preferably, the AR optical structure further includes a second focusing lens disposed between the double cemented lens and the reflective optical element, and the second focusing lens is coaxial with the display screen, the first focusing lens, and the double cemented lens.
Preferably, an included angle between the reflective optical element and the display screen and an included angle between the reflective optical element and the imaging element are both 45 degrees.
Preferably, the reflective optical element is a planar mirror plate.
Preferably, the imaging element comprises a plane imaging lens and a curved imaging lens, the plane imaging lens and the curved imaging lens are arranged in an overlapped mode, and the curved imaging lens is close to one side of the human eyes.
Preferably, the curved imaging lens and the planar imaging lens are both semi-reflecting and semi-transparent lenses.
Preferably, the display screen is a miniature high-definition display screen.
The utility model discloses a second aspect discloses a AR glasses, including as foretell AR optical structure in the AR glasses.
From the foregoing the embodiment of the utility model provides a can know, the utility model discloses a AR optical structure focuses on through the optical image that first focusing lens produced the display screen, then changes the propagation direction and propagates to imaging element refocusing to the eyes receipt behind two cemented lens propagation to reflective optical element. The utility model provides a AR optical structure sets up through the cooperation of two cemented lens and reflection optical element, has improved the light path overall arrangement, can optimize the colour difference to a certain extent, reduces machining tolerance sensitivity, has prolonged the total length of light path simultaneously, has promoted the optimization space of system, has promoted angle of vision angle and has reached 60 degrees or more.
Drawings
In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic view of the optical image irradiation of the AR optical structure of the present invention.
Description of the main element symbols:
10. a display screen; 11. a first focusing lens; 12. a second focusing lens; 13. a double cemented lens; 14. a reflective optical element; 15. an imaging element; 16. the human eye; 151. a planar imaging lens; 152. and (4) a curved imaging lens.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.
Please refer to fig. 1, the utility model discloses an AR optical structure, including display screen 10, first focusing lens 11, double-cemented lens 13, reflection optical element 14 and imaging element 15, first focusing lens 11 sets up between display screen 10 and double-cemented lens 13, and display screen 10, first focusing lens 11 and double-cemented lens 13 are on the same axle, imaging element 15 sets up in people's eye 16 one side, reflection optical element 14 sets up between double-cemented lens 13 and imaging element 15, the optical image that display screen 10 produced passes through the focus of first focusing lens 11 in proper order, the extension of double-cemented lens 13, reflection optical element 14 reflects to imaging element 15, and imaging element 15 enlargies the formation of image.
Compared with the prior art, the utility model discloses a AR optical structure focuses on through the optical image that first focusing lens 11 produced display screen 10, then changes the propagation direction and propagates to imaging element 15 refocusing to human eye 16 and receive behind two cemented lens 13 propagation to reflection optical element 14. The utility model provides a AR optical structure sets up through the cooperation of two cemented lens 13 with reflection optical element 14, has improved the light path overall arrangement, can optimize the colour difference to a certain extent, reduces machining tolerance sensitivity, has prolonged the total length of light path simultaneously, has promoted the optimization space of system, has promoted angle of vision angle and has reached 60 degrees or more.
In this embodiment, the AR optical structure further includes a second focusing lens 12, the second focusing lens 12 is disposed between the double cemented lens 13 and the reflective optical element 14, and the second focusing lens 12 is coaxial with the display screen 10, the first focusing lens 11 and the double cemented lens 13. The second focusing lens 12 is matched with the reflective optical element 14, and can focus and project the optical image emitted by the double cemented lens 13 onto the reflective optical element 14, so that the optical loss is reduced.
In the present embodiment, the included angle between the reflective optical element 14 and the display screen 10 and the included angle between the reflective optical element 14 and the imaging element 15 are both 45 degrees. The angle between the reflective optical element 14 and the display screen 10 and the angle between the imaging element 15 are both set to 45 degrees, so that the optical image can be projected in a perpendicular direction, and of course, the angle adjustment of the reflective optical element can be performed according to different observation angles of the human eyes 16.
In the present embodiment, the reflective optical element 14 is a flat mirror plate. Of course, the reflective optical element 14 can be flexibly selected as a reflective prism, a reflective grating, or the like according to the specific situation.
In the embodiment, the imaging element 15 includes a planar imaging lens 151 and a curved imaging lens 152, the planar imaging lens 151 and the curved imaging lens 152 are disposed in an overlapping manner, and the curved imaging lens 152 is disposed on a side of the human eye 16.
In the present embodiment, the curved imaging lens 152 and the planar imaging lens 151 are both transflective lenses. The display screen 10 is a miniature ultra-high-definition display screen 10. The miniature high-definition display screen 10 can be selected to see the display effect of large visual field and high definition in a small volume.
The utility model discloses a second aspect discloses a AR glasses, including as foretell AR optical structure in the AR glasses. The specific AR optical structure is as above, and is not described herein.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
Above is the description to the technical scheme that the utility model provides, to technical personnel in the field, according to the utility model discloses the thought of embodiment all has the change part on concrete implementation and range of application, to sum up, this description content should not be understood as the restriction of the utility model.
Claims (8)
1. The utility model provides a AR optical structure, its characterized in that, includes display screen, first focusing lens, two cemented lens, reflection optical element and imaging element, first focusing lens sets up the display screen with between the two cemented lens, just the display screen first focusing lens and two cemented lens are in on the same axle, imaging element sets up in people's eye one side, reflection optical element sets up two cemented lens with between the imaging element, the optical image that the display screen produced passes through in proper order first focusing lens's focus, the extension of two cemented lens, reflection optical element reflects to imaging element, and imaging element enlargies the formation of image.
2. The AR optical structure of claim 1, further comprising a second focusing lens disposed between the cemented doublet and the reflective optical element, the second focusing lens being coaxial with the display screen, the first focusing lens, and the cemented doublet.
3. The AR optical structure of claim 1, wherein the angle between the reflective optical element and the display screen and the angle between the reflective optical element and the imaging element are both 45 degrees.
4. The AR optical structure of claim 1, wherein the reflective optical element is a planar mirror.
5. The AR optical structure of claim 1, wherein said imaging element comprises a flat imaging lens and a curved imaging lens, said flat imaging lens and said curved imaging lens being disposed in superimposition, and said curved imaging lens being disposed adjacent to a side of said human eye.
6. The AR optical structure of claim 5, wherein the curved imaging lens and the planar imaging lens are transflective lenses.
7. The AR optical structure of claim 1, wherein the display screen is a miniature high definition display screen.
8. AR glasses comprising the AR optical structures of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020726673.6U CN211928306U (en) | 2020-05-06 | 2020-05-06 | AR optical structure and AR glasses thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020726673.6U CN211928306U (en) | 2020-05-06 | 2020-05-06 | AR optical structure and AR glasses thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211928306U true CN211928306U (en) | 2020-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020726673.6U Active CN211928306U (en) | 2020-05-06 | 2020-05-06 | AR optical structure and AR glasses thereof |
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| CN (1) | CN211928306U (en) |
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2020
- 2020-05-06 CN CN202020726673.6U patent/CN211928306U/en active Active
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