CN111562674A - Optical display subassembly and intelligent wearing equipment - Google Patents
Optical display subassembly and intelligent wearing equipment Download PDFInfo
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- CN111562674A CN111562674A CN202010429949.9A CN202010429949A CN111562674A CN 111562674 A CN111562674 A CN 111562674A CN 202010429949 A CN202010429949 A CN 202010429949A CN 111562674 A CN111562674 A CN 111562674A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 173
- 230000005540 biological transmission Effects 0.000 claims abstract description 86
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 230000000007 visual effect Effects 0.000 abstract description 9
- 210000001508 eye Anatomy 0.000 description 29
- 230000001154 acute effect Effects 0.000 description 15
- 239000011521 glass Substances 0.000 description 13
- 210000003128 head Anatomy 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000003190 augmentative effect Effects 0.000 description 3
- 210000005252 bulbus oculi Anatomy 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 235000009537 plain noodles Nutrition 0.000 description 2
- 241000270295 Serpentes Species 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 208000003464 asthenopia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 239000013307 optical fiber Substances 0.000 description 1
- 238000012634 optical imaging Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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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
- 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
- G02B2027/0178—Eyeglass type
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Abstract
The application discloses optical display subassembly and intelligent wearing equipment. The optical display assembly comprises an optical machine module, an optical transmission element and an optical path changing element. The optical-mechanical module is used for projecting light rays carrying pictures. The light transmission element comprises a first face, a second face and a third face, the first face is back to back with the second face, the third face is connected with the first face and the second face, the light transmission element is used for receiving the light at the first face and reflecting the light inside the first face and the second face, and the first face and the light outlet of the optical machine module form a first included angle. The light path changing element is arranged between the light transmission element and the optical machine module, is used for receiving light rays and projecting the light rays to the first surface, the light rays are emitted from the first surface, and the distance between the center of the emitting position of the light rays on the first surface and the third surface is within a preset range. This application utilizes the light path to change the transmission direction of the light that the ray apparatus module sent, and the user can watch the projected picture of ray apparatus module with best visual angle.
Description
Technical Field
The application relates to the technical field of optical imaging, in particular to an optical display assembly and intelligent wearable equipment.
Background
Along with the development of science and technology, intelligent wearing equipment, for example AR glasses or VR glasses get into people's life gradually, and people wear intelligent wearing equipment usually and watch the picture that is formed by the ray apparatus module projection of both sides and realize virtual reality or augmented reality. Because people's head is narrow back width usually, can strut the both sides of intelligent wearing equipment after people wear intelligent wearing equipment for people can't see ray apparatus module projection picture from best visual angle.
Disclosure of Invention
The embodiment of the application provides an optical display subassembly and intelligent wearing equipment.
Embodiments of the present application provide an optical display assembly, comprising: the optical-mechanical module, the optical transmission element and the optical path changing element. The optical-mechanical module is used for projecting light rays carrying pictures; the optical transmission element comprises a first surface, a second surface and a third surface, the first surface is opposite to the second surface, the third surface is connected with the first surface and the second surface, the optical transmission element is used for receiving the light at the first surface and internally reflecting the light between the first surface and the second surface, and the first surface and the light-emitting surface of the optical-mechanical module form a first included angle; and the light path changing element is arranged between the light transmission element and the optical mechanical module, is used for receiving the light rays and projecting the light rays to the first surface, the light rays are emergent from the first surface, and the distance between the center of the emergent position of the light rays on the first surface and the third surface is within a preset range.
In some embodiments, a distance between a center of the light exiting position of the light ray at the first surface and the third surface is equal to a distance between the central axis of the light transmitting element and the third surface.
In some embodiments, the light rays exit perpendicularly with respect to the first face.
In some embodiments, a distance between a center of the light exiting position of the light ray at the first surface and the third surface is smaller than a distance between the central axis of the light transmitting element and the third surface.
In some embodiments, the light exits at a second angle relative to the first surface.
In some embodiments, the light transmission element is configured to project the light from the first surface to a human eye, and the center of the exit position of the light on the first surface is located in a forward projection range of the human eye on the first surface.
In some embodiments, the light transmission element is configured to project the light to human eyes from the first surface, and the center of the exit position of the light on the first surface and the optical mechanical module are respectively located on two sides of the orthographic projection.
In some embodiments, the light path changing element includes an incident surface and an exit surface, the incident surface is parallel to the exit surface, and the light beam exits from the exit surface and enters the first surface perpendicularly.
In some embodiments, the light path changing element includes an incident surface and an exit surface, the incident surface is parallel to the exit surface, and the light beam exits from the exit surface and then obliquely enters the first surface.
In some embodiments, the optical path changing element is coupled to the opto-mechanical module and the optical path changing element is coupled to the opto-mechanical module via a common carrier, and the optical path changing element is spaced from or attached to the opto-mechanical module.
The embodiment of this application still provides an intelligence wearing equipment, intelligence wearing equipment includes: a frame, a temple and an optical display assembly as described in any of the above embodiments. The optical machine module and the optical path changing element are arranged in the glasses legs, and the optical transmission element is arranged in the glasses frame.
In some embodiments, the number of the optical display assemblies is two, the two optical mechanical modules and the two optical path changing elements are respectively disposed in the two temples, and the two optical transmission elements are respectively disposed in the two frames.
The utility model provides an optical display subassembly and intelligent wearing equipment utilize the play plain noodles of ray apparatus module and the first face of light path transmission component to be first contained angle setting for optical display subassembly matches with the head of the wide people in narrow back before more easily. Simultaneously, the optical display subassembly and intelligent wearing equipment of this application utilize to add the light path and change the component between ray apparatus module and light path transmission element, and utilize this light path to change the transmission direction of the light that ray apparatus module sent and follow the one end entering of the first face of light transmission element, and make light follow the other end outgoing of first face after the transmission of light transmission element, and the distance between the center of outgoing position and the third face is in the predetermined range, thereby make the user can watch the projected picture of ray apparatus module with best visual angle.
Additional aspects and advantages of embodiments of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a smart wearable device according to some embodiments of the present application;
FIG. 2 is a schematic structural view of an optical display assembly according to certain embodiments of the present application;
FIG. 3 is a schematic structural view of an optical display assembly according to certain embodiments of the present application;
FIG. 4 is a schematic structural view of an optical display assembly according to certain embodiments of the present application;
FIG. 5 is a schematic structural diagram of a smart wearable device according to some embodiments of the present application;
FIG. 6 is a schematic structural view of an optical display assembly according to certain embodiments of the present application;
FIG. 7 is a schematic structural view of an optical display assembly according to certain embodiments of the present application;
fig. 8 is a schematic structural diagram of a smart wearable device according to some embodiments of the present application;
FIG. 9 is a schematic diagram of the structure of an optical display assembly according to certain embodiments of the present application.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the embodiments of the present application, and are not to be construed as limiting the embodiments of the present application.
Referring to fig. 1, the present application provides an intelligent wearable device 1000, and the intelligent wearable device 1000 may be an intelligent AR glasses, an intelligent AR eyeshade, an intelligent AR helmet, an intelligent AR head ring, an intelligent VR glasses, an intelligent VR eyeshade, an intelligent VR helmet, or an intelligent VR head ring. The embodiment of the application takes the intelligent wearable device 1000 as the intelligent AR glasses for example.
Specifically, please refer to fig. 2, the smart wearable device 1000 includes an optical display assembly 100, a frame 200, and temples 300. In one embodiment, the number of the glasses frames 200 and the temples 300 is two, the two glasses frames 200 correspond to the two temples 300 one by one, and each of the temples 300 is connected to the outer side of the corresponding glasses frame 200.
The optical display assembly 100 includes an optical module 10, a light transmitting element 20 and a light path changing element 30. The optical module 10 and the optical path changing element 30 are disposed in the temple 300, and the optical transmission element 20 is disposed in the frame 200. The optical-mechanical module 10 is used for projecting light rays carrying pictures. The optical transmission element 20 includes a first surface 21, a second surface 23, and a third surface 25, where the first surface 21 is opposite to the second surface 23, the third surface 25 connects the first surface 21 and the second surface 23, the optical transmission element 20 is configured to receive light at the first surface 21 and reflect the light between the first surface 21 and the second surface 23, and the first surface 21 and the light emitting surface 11 of the optical mechanical module 10 form a first included angle γ. The optical path changing element 30 is disposed between the optical transmission element 20 and the optical mechanical module 10, the optical path changing element 30 is configured to receive light and project the light to the first surface 21, the light exits from the first surface 21, and a distance between a center of an exit position of the light on the first surface 21 and the third surface 25 is within a predetermined range.
When the number of the optical display assemblies 100 is one, the optical mechanical module 10 and the optical path changing element 30 are disposed in one of the temples 300, and the optical transmission element 20 is disposed in the frame 200 corresponding to the temple 300. The intelligent wearing equipment 1000 at this moment can provide virtual picture or augmented reality picture for user's one side vision, and the picture of ray apparatus module 10 projection can not get into user's opposite side visual range, avoids causing the influence to user's vision in specific occasion. For example, the particular situation may be where the user does not want the virtual image to be blocked in front of a side view while driving or flying a vehicle such as an airplane.
When the number of the optical display assemblies 100 is two, the two opto-mechanical modules 10 and the two optical path changing elements 30 are respectively disposed in the two temples 300, and the two optical transmission elements 20 are respectively disposed in the two lens frames 200. The smart wearable device 1000 at this time can provide a virtual picture or an augmented reality picture for the two-side vision of the user, and improve the sense of immersion of the user in a specific use scene, such as a game.
Specifically, ray apparatus module 10 includes structural component, display screen and lens, and the display screen all sets up in structural component with the lens, and structural component is used for providing the protection for display screen and lens, for example dustproof, waterproof, prevent falling protection etc.. The display screen is used for displaying images, and the lens is arranged in front of the display screen and used for converging or diffusing light rays emitted from the display screen. The optical mechanical module 10 is used for projecting light rays carrying pictures, that is, the optical mechanical module 10 is used for amplifying and outputting images displayed by the display screen. It should be noted that the light projected by the optical mechanical module 10 into the light transmission element 20 is located within a specified range on the first surface 21, for example, the size of the specified range (when the specified range is rectangular, the size is width; when the specified range is circular, the size is radius) may be less than or equal to 5mm, or less than or equal to 10mm, or less than or equal to 15 mm.
The first included angle γ may be an acute angle (the dashed line connected to the optical mechanical module 10 in fig. 2 is parallel to the first surface 21), that is, γ is less than 90 °, γ may be 15 °, 20 °, 30 °, 45 °, 55 °, 60 °, 67 °, 70 °, 80 °, 88 °, and the like. At present, when the temple 300 is perpendicular to the optical transmission element 20, only the central axis of the temple 300 needs to be parallel to the optical axis of the optical module 10, that is, the optical axis of the optical module 10 is perpendicular to the optical transmission element 20, in order to make the light emitted from the optical module 10 vertically enter the optical transmission element 20 and then vertically enter human eyes. However, after people wear the smart wearable device 1000, two sides of the smart wearable device 1000 are spread, and in terms of structural design, the central axis of the temple 300 of the embodiment of the present application and the optical transmission element 20 (the frame 200) are designed to be relatively inclined and form an included angle, rather than being perpendicular to each other, so as to be more ergonomic. If the temple 300 is simply rotated to form this angle while keeping the width of the temple 300 constant and the optical axis of the opto-mechanical module 10 perpendicular to the optical transmission element 20, the temple 300 cannot enclose the opto-mechanical module 10 with the optical axis perpendicular to the optical transmission element 20. One solution is as follows: the size of the temple 300 is increased to wrap the optical mechanical module 10, and this method increases the peripheral size of the temple 300, reduces the appearance, increases the volume and weight of the temple 300, increases the cost, and affects the wearing comfort. The utility model provides an intelligence wearing equipment 1000 and optical display subassembly 100 is first contained angle gamma design through the play plain noodles 11 with first face 21 and ray apparatus module 10, make light path change component 30 and ray apparatus module 10 can place together in intelligence wearing equipment 1000, and the optical axis of the optical subassembly that light path change component 30 and ray apparatus module 10 constitute keeps parallel with the center pin of mirror leg 300, at this moment, the same angle of relative light transmission component 20 slope of the optical subassembly that light path change component 30 and ray apparatus module 10 constitute, the volume and the weight of mirror leg 300 that from this can not increase intelligence wearing equipment 1000 alright wrap up ray apparatus module 10 and light path change component 30 in, make intelligence wearing equipment 1000 light and compact structure.
The optical transmission element 20 is configured to emit the light carrying the picture emitted from the optical module 10 from the exit position of the optical transmission element 20 after the light is totally reflected inside the optical transmission element 20. The light transmission element 20 includes an optical waveguide such as a waveguide sheet, an optical fiber, or the like, and the optical waveguide may be made of glass or plastic. In the present embodiment, the light transmission element 20 is a waveguide sheet. In the smart wearable device 1000 according to the embodiment of the present application, since the light transmission element 20 (optical waveguide) is thin and light and has high transmittance for external light, light entering the inside of the light transmission element 20 from the first surface 21 advances in the optical waveguide by back-and-forth reflection like a snake without being transmitted, and the light transmission element 20 couples light into its glass substrate, transmits the light to the front of human eyes by the principle of "total reflection" and then releases the light from the first surface 21. In the whole transmission process, the light transmission element 20 is only responsible for transmitting the image projected by the optical mechanical module 10, the virtual image projected by the optical mechanical module 10 can be seen at the position of human eyes, and meanwhile, because of the high penetrability of the light transmission element 20, the user can also see the real world, so that the reality enhancement effect can be realized. The intelligent wearing equipment 1000 of this application embodiment has because had this transmission element of light transmission element 20, can keep away from picture frame 200 setting with ray apparatus module 10, for example sets up in intelligent wearing equipment 1000's side, sets up on mirror leg 300 promptly, and this has greatly reduced ray apparatus module 10 and to the blockking of external sight to make weight distribution more accord with human engineering, thereby improved intelligent wearing equipment 1000's the experience of wearing.
The optical path changing element 30 includes a prism, a lens, a grating, a parallel plate, a fresnel zone plate, a birefringent crystal, a liquid crystal, etc. for changing the light transmission path. In the embodiment of the present application, the optical path changing element 30 is a prism.
Although the optical axis of the optical assembly formed by the optical path changing element 30 and the optical mechanical module 10 is parallel to the central axis of the temple 300, the problem that the temple 300 cannot wrap the optical mechanical module 10 with the optical axis perpendicular to the optical transmission element 20 can be solved, at this time, the light from the optical mechanical module 10 does not vertically enter the optical transmission element 20, and does not vertically exit and enter human eyes, so that people cannot watch the projection picture of the optical mechanical module 10 from the best viewing angle. In view of this, in the embodiment of the present application, the optical path changing element 30 and the optical transmission element 20 cooperate to enable the distance between the center of the light exiting position of the first surface 21 and the third surface 25 to be within a predetermined range, where the predetermined range may be 10mm to 30mm from the third surface 25, and may include 10mm, 15mm, 18mm, 20mm, 22mm, 26mm, 28mm, 29mm, 30mm, and the predetermined range may be a range indicated by a dotted circle as shown in fig. 1, so as to ensure that the position of the projection display of the optical display assembly 100 matches with the optimal viewing angle of the user viewing the projection picture, thereby enhancing the user experience. In some embodiments, the center of the light exiting position on the first surface 21 may correspond to the position of the central axis 27 of the light transmission element 20, and the light can be projected to the front of the user in the central area of the frame 200, so that people can view the images projected by the optical module 10 from the optimal viewing angle, the projection viewing angle is better, and the scene reality is increased. When the intelligent wearable device 1000 is an intelligent AR glasses, when people wear the intelligent wearable device 1000, the eyes of people usually face the central axis 27 of the light transmission element 20, so the center of the emergent position of the light on the first surface 21 can also correspond to the center of the orthographic projection of the eyes on the first surface 21 after wearing the intelligent wearable device 1000, so that the user can see the projected picture without deflecting the eyeballs, the viewing angle is better, and the scene reality is increased.
In summary, the optical display module 100 and the intelligent wearable device 1000 of the present application utilize the light emitting surface 11 of the optical module 10 and the first surface 21 of the optical transmission element 20 to form the first included angle γ, so that the optical display module 100 is more easily matched with the head of a person with a narrow front and a wide back. Simultaneously, optical display subassembly 100 and intelligent wearing equipment 1000 of this application utilize to add light path change element 30 between ray apparatus module 10 and light path transmission element 20, and utilize this light path change element 30 to change the transmission direction of the light that ray apparatus module 10 sent and then get into from the one end of the first face 21 of light transmission element 20, and make light follow the other end outgoing of first face 21 after the transmission of light transmission element 20, and the distance between the center of outgoing position and third face 25 is in the predetermined range, thereby make the user can watch the picture of ray apparatus module 10 projection with best visual angle.
Referring to fig. 3, in some embodiments, the optical path changing element 30 cooperates with the light transmission element 20 to make the distance between the center of the light emitting position of the first surface 21 and the third surface 25 equal to the distance between the central axis 27 of the light transmission element 20 and the third surface 25. That is to say, the center of the emergent position of the light is located on the central axis 27 of the light transmission element 20, which can ensure that the emergent position of the light is located right in front of the user, so that the projection display position of the optical display assembly 100 matches with the optimal viewing angle of the user viewing the projection picture, the projection viewing angle is better, the scene reality is increased, and the user experience is enhanced.
Referring to fig. 3, in particular, the optical path changing element 30 includes an incident surface 31 and an exit surface 32 which are opposite to each other. The incident surface 31 is parallel to the light emitting surface 11 of the optical mechanical module 10, and an included angle between the emitting surface 32 and the incident surface 31 is a first acute angle, so that the light in the optical path changing element 30 is refracted (deflected to the right) to enter the optical transmission element 20 perpendicular to the first surface 21. The light entering the light transmission element 20 is reflected by multiple total reflections and then exits perpendicularly to the first surface 21, and because human eyes are usually located at positions opposite to the central axis 27 of the light transmission element 20, the light exiting perpendicularly from the first surface 21 can enter the human eyes perpendicularly, at this time, a user can view a picture projected by the optical-mechanical module 10 at an optimal viewing angle, and the path of the light projected to the human eyes is shortest, so that the time of seeing the projected picture by the user is shortened, and the user experience is optimal.
Referring to fig. 4, in some embodiments, the optical path changing element 30 and the light transmission element 20 cooperate to make the distance between the center of the light emitting position of the first surface 21 and the third surface 25 smaller than the distance between the central axis 27 of the light transmission element 20 and the third surface 25. In which the light exit position at the first surface 21 is located in the area in the dotted circle in fig. 4, and the center of the light exit position at the first surface 21 is offset from the central axis 27 and adjacent to the third surface 25.
Specifically, with continued reference to fig. 4, the optical path changing element 30 still includes an incident surface 31 and an exit surface 32 which are opposite to each other. The incident surface 31 is parallel to the light-emitting surface 11 of the optical mechanical module 10, and an included angle between the light-emitting surface 32 and the incident surface 31 is a second acute angle smaller than the first acute angle, so that the light in the optical path changing element 30 is refracted (more deflected to the right compared to fig. 3) and obliquely enters the light transmitting element 20 from the first surface 21. The light entering the light transmission element 20 is reflected obliquely (the oblique direction faces the direction of the central shaft 27) relative to the first surface 21 after being totally reflected for a plurality of times, because the human eye is usually located at the position opposite to the central shaft 27 of the light transmission element 20, the light obliquely exiting from the first surface 21 can still enter the human eye, at this moment, the user can not only watch the picture projected by the optical-mechanical module 10 at the best visual angle, but also the picture projected by the optical-mechanical module 10 is located at one side of the light transmission element 20 far away from the optical-mechanical module 10, is not in the front of the user, cannot block the visual field of the user, and avoids the influence of a specific occasion on the vision. The specific situation may be, for example, when the user uses the intelligent wearable device 1000 while driving a vehicle or flying a plane, the projection screen is not directly in front of the user, and the view of the user is not blocked, so that the safety of the user using the intelligent wearable device 1000 in the specific situation can be ensured.
Referring to fig. 5, in some embodiments, the light entering the light transmission device 20 and then being emitted obliquely with respect to the first surface 21 after being totally reflected for multiple times includes: the light rays exit at a second angle relative to the first surface 21. The second included angle may be an acute angle, as shown by the angle θ in fig. 5, i.e., the second included angle θ < 90 °, θ may be 19 °, 25 °, 35 °, 45 °, 50 °, 60 °, 67 °, 70 °, 82 °, 89 °, etc. The second included angle may also refer to an angle complementary to angle θ in fig. 5, in which case the second included angle is an obtuse angle. Light is the second contained angle theta outgoing relative to first face 21 and can make the light that the slope got into light transmission element 20 can follow first face 21 slope outgoing and still can get into people's eye, at this moment, the user not only can watch the picture that ray apparatus module 10 throws with best visual angle, and, the picture that ray apparatus module 10 throws is located one side of keeping away from ray apparatus module 10 of light transmission element 20, not in user's dead ahead, can not block user's the field of vision, avoid the influence of specific occasion to user's vision, thereby can guarantee that the user uses intelligent wearing equipment 1000's security in specific occasion.
Referring to fig. 6, in some embodiments, the light transmission element 20 is configured to project light to the human eye from the first surface 21, and the center of the exit position of the light on the first surface 21 is located within the orthographic projection range of the human eye on the first surface 21.
Specifically, the orthographic projection of the human eyes on the first surface 21 is shown by a dotted circle in fig. 6, light rays are emitted from the human eyes in the orthographic projection range of the first surface 21, a projection picture can be guaranteed to be in front of the human eyes, a user can easily see the projection picture without deflecting eyeballs, and human eye fatigue can be relieved.
Referring to fig. 6, more specifically, the optical path changing element 30 may include an incident surface 31 and an exit surface 32 opposite to each other. The incident surface 31 is parallel to the light emitting surface 11 of the optical mechanical module 10, and an included angle between the emitting surface 32 and the incident surface 31 is a third acute angle, so that the light in the optical path changing element 30 is refracted (deflected to the right) to enter the optical transmission element 20 perpendicular to the first surface 21. The light entering the light transmission element 20 is totally reflected for a plurality of times and then exits perpendicularly to the first surface 21. The third acute angle may be the same as or different from the first acute angle.
In one example, the human eye is located at a position opposite to the central axis 27 of the light transmission element 20, and the light emitted vertically from the first surface 21 can enter the human eye vertically, so that the user can not only view the image projected by the optical mechanical module 10 at the optimal viewing angle, but also the path of the light projected to the human eye is shortest, the time for the user to see the projected image is shortened, and the user experience is optimal.
Referring to fig. 7, in some embodiments, the light transmission element 20 is configured to project light to the human eye from the first surface 21, and the center of the emergent position of the light on the first surface 21 and the optical-mechanical module 10 are respectively located at two sides of the orthographic projection.
Specifically, the orthographic projection of the human eyes on the first surface 21 is shown by a dotted line circle in fig. 7, the center of the emergent position of the light on the first surface 21 and the optical mechanical module 10 are respectively located on two sides of the orthographic projection, so that the condition that the opposite directions of the light incident to the two eyes of the user can be converged to one point O (shown in fig. 8) when the user watches a projection picture can be met, the human eyes are comfortable and natural, and the user experience is enhanced.
Referring to fig. 7, more specifically, the optical path changing element 30 still includes an incident surface 31 and an exit surface 32 opposite to each other. The incident surface 31 is parallel to the light-emitting surface 11 of the optical mechanical module 10, and an included angle between the light-emitting surface 32 and the incident surface 31 is a fourth acute angle, and the fourth acute angle is smaller than the third acute angle, so that the light in the optical path changing element 30 is refracted (more deflected to the right compared to fig. 6) and obliquely enters the optical transmission element 20 from the first surface 21. The light entering the light transmission element 20 is totally reflected a plurality of times and then emitted obliquely with respect to the first surface 21 (the oblique direction is toward the direction of the central axis 27). The fourth acute angle may be the same as or different from the second acute angle, and the fourth acute angle is smaller than the third acute angle.
In an example, the human eye is located the position just right to the center axis 27 of the light transmission element 20, the light obliquely emitted from the first surface 21 can obliquely enter the human eye, at this time, the user can not only watch the picture projected by the optical mechanical module 10 at the best viewing angle, but also the picture projected by the optical mechanical module 10 is located on the side of the light transmission element 20 far away from the optical mechanical module 10, and is not in the front of the user, so that the visual field of the user is not blocked, the influence of the specific occasion on the vision of the user is avoided, and the safety of the user using the intelligent wearable device 1000 in the specific occasion can be ensured.
Referring to fig. 8 and 9, in some embodiments, the optical path changing element 30 is combined with the optical-mechanical module 10. Specifically, in one embodiment, the combination of the optical path changing element 30 and the optical module 10 includes: the optical path changing element 30 and the optical mechanical module 10 are combined by a common carrier, for example, the optical path changing element 30 and the optical mechanical module 10 are both installed in the carrier, but the two may be spaced, that is, the light emitting surface 11 and the incident surface 31 may be spaced (as shown in fig. 8), so that it can be avoided that the optical mechanical module 10 and the optical path changing element 30 rub against each other when the intelligent wearable device 1000 is used, the optical mechanical module 10 or the optical path changing element 30 is damaged, and the service life of the intelligent wearable device 1000 is prolonged. Of course, the light path changing element 30 and the optical module 10 are both installed in the carrier, but the two can be attached to each other, that is, the light emitting surface 11 contacts with the incident surface 31, so that the entrance of the stray light incident surface 31 can be avoided, the imaging quality of the intelligent wearable device 1000 is improved, and the user experience is enhanced.
In another embodiment, the optical path changing element 30 and the optical mechanical module 10 may be combined into a single structure by a screw connection, a gluing, a welding, a clamping, and the like, at this time, the single structure may be installed in a carrier, and at this time, the light emitting surface 11 and the incident surface 31 may also be attached (as shown in fig. 9), so that the internal volume of the temple 300 may be reduced, which is beneficial to the portability of the intelligent wearable device 1000. In addition, the light emitting surface 11 is attached to the incident surface 31, so that the incident surface 31 can be prevented from entering, the imaging quality of the intelligent wearable device 1000 is improved, and the user experience is enhanced.
It should be noted that the carrier here may be the temple 300, and may also be other casing structures, and is not limited herein.
Claims (12)
1. An optical display assembly, comprising:
the optical-mechanical module is used for projecting light rays carrying pictures;
the optical transmission element comprises a first surface, a second surface and a third surface, the first surface is opposite to the second surface, the third surface is connected with the first surface and the second surface, the optical transmission element is used for receiving the light at the first surface and reflecting the light in the interior between the first surface and the second surface, and the first surface and the light-emitting surface of the optical-mechanical module form a first included angle; and
the light path changing element is arranged between the light transmission element and the optical mechanical module, the light path changing element is used for receiving the light rays and projecting the light rays to the first surface, the light rays are emitted from the first surface, and the distance between the center of the emitting position of the light rays on the first surface and the third surface is within a preset range.
2. The optical display module according to claim 1, wherein a distance between a center of the light exiting position of the light ray at the first face and the third face is equal to a distance between a central axis of the light transmitting element and the third face.
3. An optical display assembly according to claim 2, wherein the light rays exit perpendicularly with respect to the first face.
4. The optical display module of claim 1, wherein a distance between a center of the light exiting position of the light ray at the first surface and the third surface is smaller than a distance between a central axis of the light transmitting element and the third surface.
5. The optical display assembly of claim 4, wherein the light rays exit at a second included angle relative to the first face.
6. An optical display module as claimed in claim 1, characterized in that the light-transmitting element is adapted to project the light from the first side to a human eye, the center of the exit position of the light at the first side being located within the orthographic projection range of the human eye at the first side.
7. The optical display module of claim 1, wherein the light transmitting element is configured to project the light from the first surface to a human eye, and the center of the emergent position of the light on the first surface and the optical-mechanical module are respectively located on two sides of the orthographic projection.
8. An optical display module as claimed in claim 2 or 6, characterized in that the optical path altering component comprises an entrance surface and an exit surface, the entrance surface being parallel to the exit surface, the light beam exiting from the exit surface entering the first surface perpendicularly.
9. An optical display module as claimed in claim 4 or 7, characterized in that the optical path altering component comprises an entrance surface and an exit surface, the entrance surface being parallel to the exit surface, the light exiting from the exit surface being inclined into the first surface.
10. The optical display module of any one of claims 1 to 9 wherein the optical path altering component is coupled to the opto-mechanical module and the optical path altering component is coupled to the opto-mechanical module via a common carrier, the optical path altering component being spaced from or attached to the opto-mechanical module.
11. An intelligence wearing equipment which characterized in that includes:
a mirror frame;
a temple; and
the optical display assembly of any one of claims 1-10, the opto-mechanical module and the optical path altering component being disposed within the temple, the optical transmission component being disposed within the frame.
12. The intelligent wearable device according to claim 11, wherein the number of the optical display assemblies is two, the two optical mechanical modules and the two optical path changing elements are respectively disposed in the two temples, and the two optical transmission elements are respectively disposed in the two mirror frames.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010429949.9A CN111562674A (en) | 2020-05-20 | 2020-05-20 | Optical display subassembly and intelligent wearing equipment |
| EP21807913.5A EP4134729A4 (en) | 2020-05-20 | 2021-04-02 | Optical display assembly and intelligent wearable device |
| PCT/CN2021/085355 WO2021232967A1 (en) | 2020-05-20 | 2021-04-02 | Optical display assembly and intelligent wearable device |
| US17/979,529 US20230050132A1 (en) | 2020-05-20 | 2022-11-02 | Optical display assembly and intelligent wearable device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010429949.9A CN111562674A (en) | 2020-05-20 | 2020-05-20 | Optical display subassembly and intelligent wearing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111562674A true CN111562674A (en) | 2020-08-21 |
Family
ID=72068192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010429949.9A Pending CN111562674A (en) | 2020-05-20 | 2020-05-20 | Optical display subassembly and intelligent wearing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111562674A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021232967A1 (en) * | 2020-05-20 | 2021-11-25 | Oppo广东移动通信有限公司 | Optical display assembly and intelligent wearable device |
| WO2022095594A1 (en) * | 2020-11-09 | 2022-05-12 | Oppo广东移动通信有限公司 | Image display device and wearable apparatus |
| WO2024051777A1 (en) * | 2022-09-09 | 2024-03-14 | 浙江舜为科技有限公司 | Near-eye display optical machine and near-eye display apparatus |
-
2020
- 2020-05-20 CN CN202010429949.9A patent/CN111562674A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021232967A1 (en) * | 2020-05-20 | 2021-11-25 | Oppo广东移动通信有限公司 | Optical display assembly and intelligent wearable device |
| WO2022095594A1 (en) * | 2020-11-09 | 2022-05-12 | Oppo广东移动通信有限公司 | Image display device and wearable apparatus |
| EP4242726A4 (en) * | 2020-11-09 | 2024-05-08 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Image display device and wearable apparatus |
| WO2024051777A1 (en) * | 2022-09-09 | 2024-03-14 | 浙江舜为科技有限公司 | Near-eye display optical machine and near-eye display apparatus |
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