CN214011669U - Lens and intelligent glasses - Google Patents
Lens and intelligent glasses Download PDFInfo
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- CN214011669U CN214011669U CN202022459665.2U CN202022459665U CN214011669U CN 214011669 U CN214011669 U CN 214011669U CN 202022459665 U CN202022459665 U CN 202022459665U CN 214011669 U CN214011669 U CN 214011669U
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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
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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C11/00—Non-optical adjuncts; Attachment thereof
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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
Abstract
The application belongs to the technical field of near-to-eye display, and particularly relates to a lens and intelligent glasses, wherein the lens comprises a lens main body and a light fusion device; the lens main body comprises an inner side mirror surface and an outer side mirror surface, the surface type parameters of the inner side mirror surface are fixed, the surface type parameters of the outer side mirror surface are valued according to the surface type parameters of the inner side mirror surface, and the diopter of the lens main body is determined by combining the surface type parameters of the inner side mirror surface and the surface type parameters of the outer side mirror surface; the optical combiner is disposed on the inner mirror surface, or in a region between the inner mirror surface and the outer mirror surface, and the optical combiner is configured to reflect the beam group. The parameters such as the setting position of the optical fusion device can be determined only according to the surface type parameters of the inner side mirror surface, so that the parameters such as the setting position of the optical fusion device do not need to be changed along with the change of the degree, the application cost of the lens is better reduced, the sample specification of the lens during production and manufacturing is simplified, the lens is easy to produce in batches, and the intelligent glasses with the lens are easy to form a simple structure.
Description
Technical Field
The application belongs to the technical field of near-to-eye display, and particularly relates to a lens and intelligent glasses.
Background
Augmented reality, virtual reality, and mixed reality technologies are widely used in many industries. The application scenes of the above-mentioned technologies all involve near-eye display, and when the above-mentioned technologies are applied to the near-eye display scenes, the situations of ametropia such as myopia, hyperopia and astigmatism existing in the vision of the user need to be considered.
In the prior art, in order to deal with ametropia, the device adopting the technology is generally solved by the following technical means: the first is to provide multiple functional zones on the lens of the device to allow for near or far vision and virtual image projection. The defects of the method are that the lens functional area is complex, the virtual image or the real image is easy to deform, the production process is complex, and the production cost is high. The second is that set up automatically controlled optical phase modulation module in equipment to guarantee that ametropia's user also can see clear virtual image, and what its existed lies in, and equipment system is comparatively complicated, and the consumption is high, and its configuration is difficult to realize approaching to conventional glasses molding, and the third kind is that add correction lens in equipment, with see clear virtual image and true scene simultaneously, and what its existed lies in, is equivalent to wearing two glasses, and weight is big, and user experience feels not good.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the application is to provide a lens and smart glasses, which aim to solve at least one of the disadvantages of the above technical means.
In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions:
in a first aspect: providing a lens comprising a lens body and a light fuser;
the lens main body comprises an inner side lens surface and an outer side lens surface, wherein the surface type parameters of the inner side lens surface are fixed, and the surface type parameters of the outer side lens surface determine the diopter of the lens main body according to the surface type parameter value of the inner side lens surface and the surface type parameter combination of the inner side lens surface and the outer side lens surface;
the optical fusion device is arranged on the inner side mirror surface of the lens body, or the optical fusion device is arranged in an area between the inner side mirror surface and the outer side mirror surface, and the optical fusion device is used for reflecting the light beam group to the retina of the eyeball so as to form a display image.
When the lens provided by the embodiment of the application works, the optical fusion device can reflect the light beam group emitted by the external equipment to the retina of the eyeball so as to form a display image through human eyes. The surface type parameters of the inner side mirror surface of the lens main body are fixed, the surface type parameters of the outer side mirror surface of the lens main body are determined according to the surface type parameters of the inner side mirror surface, the diopter of the lens main body is determined by the combination of the surface type parameters of the inner side mirror surface and the surface type parameters of the outer side mirror surface, and then the combination of the surface type parameters of the inner side mirror surface and the surface type parameters of the outer side mirror surface can enable the lens to have the functions of myopia correction, hyperopia correction, amblyopia correction, astigmatism correction or flat light. Because the surface type parameters of the inner mirror surface are fixed, when the light fusion device is arranged on the inner mirror surface, or in the region between the inner mirror surface and the outer mirror surface, the parameters such as the installation position of the optical fusion device can be determined only by the surface parameters of the inner mirror surface without considering the influence of the surface parameters change of the outer mirror surface, thus, in a certain myopia, hyperopia, amblyopia or astigmatism power range, the parameters such as the setting position of the optical fusion device and the like do not need to be changed along with the change of the power, therefore, the application cost of the lens is better reduced, the preparation specification of the lens during production and manufacturing is simplified, the lens is easy to produce in batch, the intelligent glasses with the lens are easy to form a simple structure, and when the lens is applied in a production mode, the lens is more easily integrated in a conventional glasses frame, and has better production potential.
Optionally, the surface shape parameter of the inner mirror surface and the surface shape parameter of the outer mirror surface are both curvature radius values. By selecting the surface type parameter as the curvature radius value, the processing of the inner mirror surface and the outer mirror surface of the lens can be conveniently realized by using the curvature radius value as the processing parameter. The curvature radius value of the inner mirror surface is fixed, the curvature radius value of the outer mirror surface is valued according to the curvature radius value of the inner mirror surface, and the curvature radius value of the inner mirror surface and the curvature radius value of the outer mirror surface are combined to determine the diopter of the lens body.
Optionally, the curvature radius value of the outer mirror surface has a corresponding range of values corresponding to the curvature radius value of the inner mirror surface, and each curvature radius value of the outer mirror surface within the range of values is combined with the curvature radius value of the inner mirror surface to determine the corresponding diopter.
Optionally, the curvature radius value of the inner mirror surface is 62.00mm, the curvature radius value of the outer mirror surface ranges from 191.01mm to 361.53mm, the diopter value ranges from-8.00D to-6.50D, and the virtual image distance of the display image is 0.13 m.
Optionally, the curvature radius value of the inner mirror surface is 82.00mm, the curvature radius value of the outer mirror surface ranges from 182.48mm to 566.50mm, the diopter value ranges from-6.25D to-4.00D, and the virtual image distance of the display image is 0.16 m.
Optionally, the curvature radius value of the inner mirror surface is 118.00mm, the curvature radius value of the outer mirror surface ranges from 195.71mm to 328.94mm, the diopter value ranges from-3.25D to-2.00D, and the virtual image distance of the display image is 0.27 m.
Optionally, the curvature radius value of the inner mirror surface is 255.00mm, the curvature radius value of the outer mirror surface ranges from 255.75mm to 997.23mm, the diopter value ranges from-1.75D to 0.00D, and the virtual image distance of the display image is 0.57 m.
Optionally, the optical fusion device is in a film shape and is attached to the inner mirror surface. The optical fuser may be a holographic reflective optical fuser in a planar or curved surface.
Optionally, the optical fusion device is disposed in an area between the inner and outer mirror surfaces and is integrally formed with the lens body. Therefore, the manufacturing cost of the lens can be reduced, and the mass production of the lens is facilitated.
Optionally, the lens body includes a first substrate and a second substrate, the optical fusion device is disposed between the first substrate and the second substrate, a surface of the first substrate facing away from the optical fusion device is an outer mirror surface, and a surface of the second substrate facing away from the optical fusion device is an inner mirror surface. Thus, the optical fusion device can be arranged in the glass lens.
In a second aspect: the utility model provides an intelligent glasses, including mirror holder, light engine and foretell lens, the lens sets up in the picture frame of mirror holder, and the light engine sets up on the mirror leg of mirror holder to be used for to light fusion ware transmission light beam group.
The intelligent glasses provided by the embodiment of the application comprise the lenses, and the lenses realize lower application cost and more convenient sample preparation specification through the combination of the surface type parameters of the inner and outer lens main bodies and the matching of the optical fusion device and the lens main bodies, so that the intelligent glasses comprising the lenses have lower production cost and stronger product force.
Optionally, the optical engine includes a light source module, a shaping module, and a microelectronic scanning galvanometer;
the microelectronic scanning galvanometer is arranged close to the lens, and the shaping module is positioned between the microelectronic scanning galvanometer and the light source module;
the light source module is used for emitting a light beam group;
the shaping module is used for shaping the light beam group emitted from the light source module;
and the microelectronic scanning galvanometer is used for scanning and projecting the shaped light beam group to the optical fusion device.
When the optical engine works, the light source module transmits a light beam group to the shaping module, the shaping module shapes each light beam in the light beam group to form light beams with different divergence angles, and after shaping is completed, the light beams with different divergence angles are scanned and reflected to the optical fusion device through the microelectronic scanning galvanometer and then reflected to a retina through the optical fusion device.
Optionally, the smart glasses further include a relay optical article, and the relay optical article is disposed on a path of the microelectronic scanning galvanometer projecting the light beam group to the optical combiner, and is configured to shape the light beam group projected to the optical combiner.
Optionally, the set of beams is a set of collimated beams, a set of diverging beams, or a set of converging beams.
Optionally, the smart glasses are augmented reality glasses or mixed reality glasses.
Drawings
FIG. 1 is a cross-sectional cutaway view one of a lens provided in an embodiment of the present application;
FIG. 2 is a cross-sectional cut-away view II of a lens provided in an embodiment of the present application;
FIG. 3 is a cross-sectional cut-away view III of a lens provided in an embodiment of the present application;
FIG. 4 is a cross-sectional cut-away view four of a lens provided by an embodiment of the present application;
fig. 5 is a schematic structural diagram of smart glasses provided in an embodiment of the present application;
fig. 6 is another schematic structural diagram of smart glasses provided in an embodiment of the present application;
FIG. 7 is a schematic diagram of a lens, a light engine and a relay optical object according to an embodiment of the present disclosure;
fig. 8 is a schematic diagram of a lens, a light engine, a relay optical object and a display controller according to an embodiment of the present disclosure.
Wherein, in the figures, the respective reference numerals:
10-lens 11-lens main body 12-optical fusion device
13-inner mirror 14-outer mirror 15-first substrate
16-second substrate 20-smart glasses 21-mirror holder
22-light engine 23-spectacle frame 24-spectacle leg
25-relay optics 26-display controller 121-hard mask.
Detailed Description
The terms appearing in the examples of the present application are explained below:
augmented reality technology: the (AR, Augmented Reality) is a technology for skillfully fusing virtual information and the real world, and a plurality of technical means such as multimedia, three-dimensional modeling, real-time tracking and registration, intelligent interaction, sensing and the like are widely applied, and virtual information such as characters, images, three-dimensional models, music, videos and the like generated by a computer is applied to the real world after being simulated, and the two kinds of information complement each other, so that the real world is enhanced.
Mixed reality technology: (MR, Mixed Reality) is further developed based on augmented Reality technology and virtual Reality technology, which enhances the sense of Reality experienced by users by presenting virtual scene information in real scenes and building an interactive feedback information loop between the real world, the virtual world and the users.
Virtual image distance: in an augmented reality or mixed reality device, the sum of the distance from the human eye to the lens and the distance from the lens to a virtual image formed by the augmented reality or mixed reality device is referred to as the virtual image distance.
Micro-electro-mechanical scanning galvanometer: the Micro-Electro-Mechanical System (MEMS), also called microsystem, micromachine, etc., is a Micro device or System integrating a Micro sensor, a Micro actuator, a Micro Mechanical structure, a Micro power source, a signal processing and control circuit, a high performance electronic integrated device, an interface, and communication.
Referring to fig. 1 to 3, an embodiment of the present application provides a lens 10. The lens 10 includes a lens body 11 and an optical fusion device 12. Specifically, the lens body 11 includes an inner mirror surface 13 and an outer mirror surface 14, wherein the inner mirror surface 13 is a surface facing the wearer's face and the outer mirror surface 14 is a surface facing away from the wearer's face. The surface parameters of the inner mirror surface 13 are fixed, and the surface parameters of the outer mirror surface 14 are obtained according to the surface parameters of the inner mirror surface 13 of the lens body 11. The combination of the surface parameters of the inner mirror surface 13 and the surface parameters of the outer mirror surface 14 determines the diopter of the lens body 11.
In this embodiment, the diopter determination of the lens body 11 by the combination of the surface shape parameters of the inner mirror surface 13 and the surface shape parameters of the outer mirror surface 14 is realized by the following diopter calculation formula:
where Φ represents diopter, ra represents the radius of curvature of the outer mirror surface 14, rb represents the radius of curvature of the inner mirror surface 13, n represents the refractive index of the material of the lens body 11, and d is the center thickness of the lens body 11.
Optionally, the surface types of the inner mirror surface 13 and the outer mirror surface 14 of the lens 10 may be a common spherical surface, an aspheric surface, or a free-form surface, so that the processing of the inner mirror surface 13 and the outer mirror surface 14 is the same as that of the lens 10 of common glasses, and the lens is processed according to a mature processing flow of the polarized lens 10, so that the overall processing and manufacturing cost of the lens 10 can be reduced.
More specifically, the optical fusion device 12 is disposed on the inner mirror surface 13 of the lens body 11. Alternatively, the optical fusion device 12 is disposed in a region between the inner mirror 13 and the outer mirror 14 (the region is shown as 10a in fig. 3 and 4), and the optical fusion device 12 is configured to reflect the light beam group to the retina of the eyeball to form a display image. Wherein the light beam group is emitted by an external light beam emitting device (such as the light engine 22).
Thus, the optical fusion device 12 can reflect the light beam group to the retina of the human eye, and after the light beam group is imaged by the retina, the user can form a virtual display image in the human brain, so that when the user wears the device with the lens 10, the user can clearly see the external environment and the virtual display image without wearing additional conventional vision correction glasses.
Referring to fig. 1, a lens 10 provided in the embodiments of the present application is further described as follows: in the lens 10 provided in the embodiment of the present application, in operation, the optical fusion device 12 can reflect the light beam group emitted from the external device onto the retina of the eyeball, so as to form a display image through the human eye. The surface type parameters of the inner mirror surface 13 of the lens body 11 are fixed, the surface type parameters of the outer mirror surface 14 of the lens body 11 are determined according to the surface type parameters of the inner mirror surface 13, the diopter of the lens body is determined by the combination of the surface type parameters of the inner mirror surface 13 and the surface type parameters of the outer mirror surface 14, and the combination of the surface type parameters of the inner mirror surface 13 and the outer mirror surface 14 can enable the lens 10 to have the functions of myopia correction, hypermetropia correction, amblyopia correction, astigmatism correction or flat light.
Since the parameters of the surface type of the inner lens 13 are fixed, when the optical fusion device 12 is disposed on the inner lens 13 or in the region between the inner lens 13 and the outer lens 14, the parameters such as the disposition position of the optical fusion device 12 can be determined only according to the parameters of the surface type of the inner lens 13 without considering the influence caused by the change of the parameters of the surface type of the outer lens 14, so that the parameters such as the disposition position of the optical fusion device 12 do not need to be changed along with the change of the power within a certain range of myopia, hyperopia, amblyopia or astigmatism power, thereby better reducing the application cost of the lens 10, simplifying the design of the lens 10 during the production and manufacturing, facilitating the mass production thereof, facilitating the formation of the smart glasses 20 with the lens 10 into a very simple structure, and facilitating the integration of the lens 10 into the conventional spectacle frame 21 during the production and application, has better potential for commercialization.
In other embodiments of the present application, the profile parameter of the inner mirror surface 13 and the profile parameter of the outer mirror surface 14 are both curvature radius values. The curvature radius value of the inner mirror surface 13 is fixed, the curvature radius value of the outer mirror surface 14 is valued according to the curvature radius value of the inner mirror surface 13, and the combination of the curvature radius value of the inner mirror surface 13 and the curvature radius value of the outer mirror surface 14 determines the diopter of the lens body 11. Specifically, by selecting the surface shape parameter as the curvature radius value, and thus using the curvature radius value as the processing parameter, the processing of the inner mirror surface 13 and the outer mirror surface 14 of the lens 10 can be realized more conveniently. Of course, the surface shape parameter may be other parameters of the inner mirror surface 13 and the outer mirror surface 14, which is not limited in this embodiment.
In other embodiments of the present application, the radius of curvature value of the outer mirror 14 has a corresponding range of values corresponding to the radius of curvature value of the inner mirror 13, each radius of curvature value of the outer mirror 14 within the range of values being combined with the radius of curvature value of the inner mirror 13 to determine the corresponding diopter.
Specifically, for the fitting relationship of the surface parameters of the inner mirror surface 13 and the outer mirror surface 14 of the lens 10, the value of the surface parameter of the inner mirror surface 13 of the lens body 11 can be set to N levels, and the value of the surface parameter of the outer mirror surface 14 has a corresponding value range corresponding to each level of the surface parameter of the inner mirror surface 13.
The following further describes the relationship between the curvature radius value of the inner surface 13 and the curvature radius value of the outer surface 14 of the lens 10:
table 1 lists the relationship between the dioptre of the lens 10 and the virtual image distance of the displayed image, which is based on the radius of curvature of the inner and outer mirror surfaces 14 of the lens 10 having the outer mirror surface 14 being a convex surface, the material MR-8, the refractive index 1.597, the Abbe's number 40, and the center thickness 2 mm.
In table 1, Φ represents diopter, ra represents the radius of curvature of the outer surface 14 of the lens 10, rb represents the radius of curvature of the inner surface 13 of the lens 10, diopter unit is D, and virtual image distance is: the distance between the virtual image formed in front of the human eye after the display image is formed on the retina and the retina.
As seen from table 1, the curvature radius value of the inner mirror surface 13 of the lens 10 is divided into four steps, rb 255mm, rb 118mm, rb 82mm and rb 62mm in the present embodiment. The range of the curvature radius value of the outer mirror surface 14 corresponds to the curvature radius value of each of the four inner mirror surfaces 13.
In this embodiment, when the curvature radius rb of the inner mirror 13 is 62.00mm, the curvature radius ra of the outer mirror 14 is 191.01mm to 361.53mm, the diopter value ranges from-8.00D to-6.50D, and the virtual image distance of the display image is 0.13 m.
When the curvature radius rb of the inner mirror 13 is 82.00mm, the curvature radius ra of the outer mirror 14 ranges from 182.48mm to 566.50mm, the diopter value ranges from-6.25D to-4.00D, and the virtual image distance of the displayed image is 0.16 m.
When the curvature radius rb of the inner mirror 13 is 118.00mm, the curvature radius ra of the outer mirror 14 ranges from 195.71mm to 328.94mm, the diopter value ranges from-3.25D to-2.00D, and the virtual image distance of the displayed image is 0.27 m.
When the curvature radius rb of the inner mirror 13 is 255.00mm, the curvature radius ra of the outer mirror 14 ranges from 255.75mm to 997.23mm, the diopter value ranges from 0.00D to-1.75D, and the virtual image distance of the displayed image is 0.57 m.
Wherein, the reciprocal of the diopter absolute value is the distance of the far point of the human eye, namely the farthest distance which can be seen clearly by the human eye, when the diopter is-1.00D, the distance of the far point of the human eye is 1m, when the diopter is-0.50D, the distance of the far point of the human eye is 2m, and the myopia diopter is the absolute value multiplied by 100 of the diopter.
As can be seen from the above examples, the curvature radius value of each inner mirror surface 13 corresponds to the value of the curvature radius value of a plurality of outer mirror surfaces 14, and since the optical fusion device 12 is disposed in the inner mirror surface 13 of the lens 10 or the region between the inner mirror surface 13 and the outer mirror surface 14, the virtual image distance of the displayed image can be designed to be constant corresponding to the curvature radius value of one inner mirror surface 13, which also means that the specification parameters such as the disposition position of the optical fusion device 12 and the like do not need to be changed along with the change of the near vision power at the curvature radius value of the inner mirror surface 13, so that the application cost of the lens 10 is reduced, the stock specification of the lens 10 during manufacturing is simplified, and the lens is easy to produce in a batch manner.
Taking the shift of rb 118.00 as an example, ra 195.71mm, rb 118.00 and d 2mm are substituted into the diopter calculation formula, so that diopter-2 is obtained, and the distance between the far point of the human eye is about 0.50 m. If ra is 289.52mm, rb is 118.00 and d is 2mm, the diopter is-3.75 and the distance between the far points of the human eyes is about 0.27m, and the distance between the far points of the human eyes is about 0.27m to 0.50m in the diopter range of-2 to-3.75, the virtual image distance of the display image can be uniformly designed to be 0.27m when the lens 10 is manufactured, so that the display image can be seen by a user with myopia at 200 to 375 degrees.
TABLE 1
In the degree gear of 200 degrees ~ 375 degrees, the virtual image distance of display image is unified to be set for in this gear, on the farthest distance that human eyesight can be seen clearly worst, and the virtual image distance can be fixed like this at this gear, need not on the one hand to readjust the specification parameters such as the position of setting of light fusion ware 12, has simplified the design of lens 10 when manufacturing, makes its easy mass production. On the other hand, when the user actually uses the device with the lens 10, the user can see the display image and the external real ring mirror clearly and comfortably by eyes, and there is no foreign body sensation when looking at the external environment through the lens 10, so that the situation that the external real ring mirror is blurred when the display image is seen clearly or the display image is blurred when the external real ring mirror is seen clearly is avoided.
In other embodiments of the present application, as shown in fig. 2 to 4, the optical fusion device 12 is in the shape of a film and is attached to the inner mirror 13. Specifically, the optical fusion device 12 may be a holographic reflective optical fusion device 12 having a plane or a curved surface, and the holographic reflective optical fusion device 12 is a transparent polymer film (such as a methyl methacrylate film), and only reflects light beams incident at a specific angle and a specific wavelength, and can be equivalent to a concave mirror in principle, and has a high transmittance for ambient light. The optical fusion device 12 can realize effective reflection of the light beam group emitted by the light engine 22 to form a display image on the retina, and can also make the user's glasses clearly observe the external environment through the optical fusion device 12.
The optical fusion device 12 is formed in a film shape so as to be attached to the inner surface 13 of the lens 10, and thus, the optical fusion device can be easily and reliably combined with the lens 10, and is easy to produce. As shown in fig. 2, when the optical fusion device 12 is attached to the inner mirror surface 13 of the lens 10, a hard film 121 or a flat lens 10 may be further disposed thereon, so as to effectively protect the optical fusion device 12 and prevent the optical fusion device from being scratched by particles such as flying sand.
Alternatively, the holographic reflected light fuser 12 can be prepared in an experimental holographic manner: specifically, a laser beam emitted by a strong coherent laser light source is divided into two paths, one path is used as a reference light and is reflected by a solid concave reflector to obtain a wavefront, or the reflected wavefront is directly generated by a wavefront generator and then is interfered with the other path of laser beam to generate an interference pattern, the interference pattern is exposed to a photosensitive holographic film to obtain a transparent polymer wavefront equivalent to the concave reflector, and finally the holographic reflected light fusion device 12 is formed.
For example, the optical fusion device 12 may have a single holographic functional layer, and the light engine 22 emits at least one set of light beams onto the holographic functional layer, so as to form a display image on the retina by reflection of the holographic functional layer. Similarly, the optical fusion device 12 may also have a plurality of hologram functional layers for reflecting light beams with different wavelengths, and the engine emits a plurality of light beam sets with different wavelengths onto the corresponding hologram functional layers, so as to form a plurality of display images on the retina through reflection of each hologram functional layer.
In other embodiments of the present application, as shown in fig. 3 and 4, the optical fusion device 12 may be disposed in the area between the inner mirror surface 13 and the outer mirror surface 14 of the lens body 11 and integrally formed with the lens body 11. Specifically, unlike the case where the optical fusion device 12 is attached to the inner side mirror surface 13 of the lens body 11, the optical fusion device 12 may be previously disposed in a preparation mold of the lens body 11 at a position corresponding to an area between the inner side mirror surface 13 and the outer side mirror surface 14 of the lens body 11 during the manufacturing process of the lens 10, and integrally molded with the lens body 11 during the pouring of the resin liquid into the mold. This reduces the manufacturing cost of the lens 10 and facilitates mass production of the lens 10. On the other hand, the optical fusion device 12 is disposed in the area between the inner mirror surface 13 and the outer mirror surface 14 of the lens body 11, so as to be protected by the lens body 11 and avoid contacting with the external environment, thereby avoiding the optical fusion device 12 being scratched by the particles such as the external flying sand.
In other embodiments of the present application, as shown in fig. 4, different from the case where the optical fusion device 12 and the lens body 11 are integrally formed, in this embodiment, the lens body 11 includes a first substrate 15 and a second substrate 16, the optical fusion device 12 is sealed between the first substrate 15 and the second substrate 16, a surface of the first substrate 15 facing away from the optical fusion device 12 is an outer mirror surface 14, and a surface of the second substrate 16 facing away from the optical fusion device 12 is an inner mirror surface 13.
Specifically, in the production and manufacture of the lens 10, the first substrate 15 and the second substrate 16 may be produced, and the optical fusion device 12 may be disposed between the first substrate 15 and the second substrate 16 and cured between the first substrate 15 and the second substrate 16 by a resin. Thus, when the glass lens 10 with higher transmittance is required and the glass lens 10 cannot be integrally formed with the optical fusion device 12, the optical fusion device 12 can be disposed in the glass lens 10 by using the above-mentioned method for combining the optical fusion device 12 and the glass lens 10.
As shown in fig. 5 and 6, the present embodiment further provides a pair of smart glasses 20, which includes a frame 21, a light engine 22, and the above-mentioned lens 10, wherein the lens 10 is disposed in a frame 23 of the frame 21, and the light engine 22 is disposed on a temple 24 of the frame 21, and is configured to emit a light beam group to the optical fusion device 12.
In particular, the smart glasses 20 may be augmented reality glasses or mixed reality glasses, or the like.
More specifically, the number of the lenses 10 may be two, and the two lenses 10 may be respectively inserted into two notches of the frame 23. The two lenses 10 may have optical fusion devices 12, or a single lens 10 may have optical fusion devices 12, the number of optical fusion devices 12 is the same as the number of optical engines 22, and the optical fusion devices 12 may occupy all or part of the surface of the lens 10.
The intelligent glasses 20 provided by the embodiment of the present application, including the above-mentioned lens 10, the lens 10 realizes lower application cost and more convenient sample preparation specification through the combination of the surface type parameters of the inner and outer lens bodies 11 and the cooperation of the optical fusion device 12 and the lens body 11, so that the intelligent glasses 20 including the above-mentioned lens 10 have lower production cost and stronger product strength.
In other embodiments of the present application, the light engine 22 includes a light source module, a shaping module, and a microelectronic scanning galvanometer. The microelectronic scanning galvanometer is arranged close to the lens 10, and the shaping module is located between the microelectronic scanning galvanometer and the light source module. Specifically, the light source module is used for emitting the light beam group, and the shaping module is used for shaping the light beam group emitted from the light source module, and the microelectronic scanning galvanometer is a scanning galvanometer based on a microelectronic mechanical system, and is used for scanning and projecting the shaped light beam group to the optical fusion device 12.
When the light engine 22 is working, the light source module emits a light beam group to the shaping module, the shaping module shapes each light beam in the light beam group to form light beams with different divergence angles, and after shaping is completed, the light beams with different divergence angles are scanned and reflected to the optical fusion device 12 through the microelectronic scanning galvanometer and then reflected to the retina through the optical fusion device 12.
Alternatively, the shaping module may be a focusing beam shaping component, which may be embodied as various components such as a liquid lens, a micro-mechanical electronic mirror array, and a variable focus lens group. The Light source module may be a laser Light source, which can reduce the power consumption of the Light engine 22 and improve the contrast of the displayed image, and compared with a Light source using LCOS (Liquid Crystal on Silicon), LED (Light Emitting Diode) or OLED (organic Light-Emitting Diode), the Light source module can omit a lighting assembly and a collimating lens group, thereby realizing a very simple architecture. Correspondingly, the light beam group is a laser light beam group, and the light source module may be a laser generator including at least one laser chip, where a single laser chip is used to generate a laser light beam with one wavelength. When a plurality of display images need to be displayed, each laser chip can be in one-to-one correspondence with a plurality of shaping modules, and each shaping module can shape the corresponding laser beam into the laser beam with at least two divergence angles in a time-sharing manner. Laser beams with different divergence angles are subjected to time-sharing shaping treatment by the shaping module and can be reflected to retinas through the multilayer holographic functional layer to form a plurality of display images.
Optionally, the laser chip may be at least a Red-Green-Blue (RGB, Red, Green, Blue) three-color chip, the three-color chip may be an integrated chip integrating three colors of Red, Green and Blue, and may also be formed by combining three types of single-color chips, the laser chip adopts a Red-Green-Blue three-color mode, and various colors are obtained through the change and superposition of the above three-color channels.
Optionally, the microelectronic scanning galvanometer may be a piezoelectric-driven two-dimensional scanning galvanometer, and the microelectronic scanning galvanometer drives the reflecting mirror to twist through two torsion beams perpendicular to each other to implement high-pass two-dimensional scanning reflection of the laser beam, and may also be formed by combining two one-dimensional scanning galvanometers to implement high-pass two-dimensional scanning reflection of the laser beam.
In other embodiments of the present application, as shown in fig. 7 and 8, the smart glasses 20 further include a relay optical article 25, and the relay optical article 25 is disposed on a path of the microelectronic scanning galvanometer projecting the beam set to the optical combiner 12, and is used for relay shaping of the beam set projected to the optical combiner 12. Specifically, the relay optical article 25 can perform correction and shaping on the beam group projected to the optical fusion device 12 through the microelectronic scanning galvanometer, and can also perform time-sharing shaping on each beam of the beam group into beams with at least two divergence angles.
Alternatively, the relay optical component may be an optical lens group or a binary optical element, and the relay optical component may be an integral part of the light engine 22 or may exist independently of the light engine 22, and in this embodiment, the relay optical component is drawn outside the light engine 22 for convenience of illustration.
In other embodiments of the present application, the set of beams projected to the optical combiner 12 is a set of collimated beams, a set of diverging beams, or a set of converging beams. Specifically, the light beam group may be any one of a collimated light beam group, a divergent light beam group, or a convergent light beam group. In the present embodiment, the beam group may be specifically selected as a collimated beam group in consideration of the ease of performing the correction shaping and the time-sharing shaping on the collimated beam group.
In other embodiments of the present application, as shown in fig. 8, the smart glasses 20 may further include a display controller 26, and the display controller 26 is electrically connected to the light engine 22 and configured to send configuration information of the display image to the light source module, the shaping module, and the micro-electronic scanning galvanometer. Specifically, the display controller 26 may decode and render the display image to generate the configuration information, and the light engine 22 modulates the display image according to the configuration information.
Optionally, the display controller 26 may further be electrically connected to an external device, where the electrical connection includes a wired or wireless connection, and the wireless connection includes a WIFI connection or a bluetooth connection, so that the display controller 26 may obtain related information from other external devices to enrich the configuration information, and further provide more accurate configuration information for the light engine 22.
Finally, it should be noted that: the above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (15)
1. An ophthalmic lens, characterized by: comprises a lens main body and a light fusion device;
the lens main body comprises an inner side lens surface and an outer side lens surface, the surface type parameters of the inner side lens surface are fixed, the surface type parameters of the outer side lens surface are valued according to the surface type parameters of the inner side lens surface, and the surface type parameters of the inner side lens surface and the surface type parameters of the outer side lens surface are combined to determine the diopter of the lens main body;
the optical fusion device is arranged on the inner side mirror surface of the lens main body, or the optical fusion device is arranged in an area between the inner side mirror surface and the outer side mirror surface, and the optical fusion device is used for reflecting the light beam group to the retina of an eyeball so as to form a display image.
2. The lens according to claim 1, characterized in that: the surface type parameters of the inner side mirror surface and the surface type parameters of the outer side mirror surface are curvature radius values, the curvature radius values of the inner side mirror surface are fixed, the curvature radius values of the outer side mirror surface are valued according to the curvature radius values of the inner side mirror surface, and the curvature radius values of the inner side mirror surface and the curvature radius values of the outer side mirror surface are combined to determine the diopter of the lens main body.
3. The lens according to claim 2, characterized in that: and the curvature radius value of the outer mirror surface has a corresponding numerical range corresponding to the curvature radius value of the inner mirror surface, and each curvature radius value of the outer mirror surface in the numerical range is respectively combined with the curvature radius value of the inner mirror surface to determine corresponding diopter.
4. The lens according to claim 2, characterized in that: the curvature radius value of the inner mirror surface is 62.00mm, the curvature radius value of the outer mirror surface ranges from 191.01mm to 361.53mm, the diopter value ranges from-8.00D to-6.50D, and the virtual image distance of the display image is 0.13 m.
5. The lens according to claim 2, characterized in that: the curvature radius value of the inner mirror surface is 82.00mm, the curvature radius value of the outer mirror surface ranges from 182.48mm to 566.50mm, the diopter numerical range ranges from-6.25D to-4.00D, and the virtual image distance of the display image is 0.16 m.
6. The lens according to claim 2, characterized in that: the curvature radius value of the inner mirror surface is 118.00mm, the curvature radius value of the outer mirror surface ranges from 195.71mm to 328.94mm, the diopter numerical range ranges from-3.25D to-2.00D, and the virtual image distance of the display image is 0.27 m.
7. The lens according to claim 2, characterized in that: the curvature radius value of the inner mirror surface is 255.00mm, the curvature radius value of the outer mirror surface ranges from 255.75mm to 997.23mm, the diopter numerical range ranges from-1.75D to 0.00D, and the virtual image distance of the display image is 0.57 m.
8. The lens according to any one of claims 1 to 7, characterized in that: the optical fusion device is in a film shape and is attached to the inner side mirror surface.
9. The lens according to any one of claims 1 to 7, characterized in that: the optical fusion device is arranged in the area between the inner side mirror surface and the outer side mirror surface and is integrally formed with the lens main body.
10. The lens according to any one of claims 1 to 7, characterized in that: the lens main body comprises a first substrate and a second substrate, the optical fusion device is arranged between the first substrate and the second substrate, one surface of the first substrate, which faces away from the optical fusion device, is the outer side mirror surface, and one surface of the second substrate, which faces away from the optical fusion device, is the inner side mirror surface.
11. A smart eyewear, characterized by: the optical lens comprises a lens frame, an optical engine and the lens as claimed in any one of claims 1 to 10, wherein the lens is arranged in a lens frame of the lens frame, and the optical engine is arranged on a lens leg of the lens frame and is used for emitting a light beam group to the optical fusion device.
12. The smart eyewear of claim 11, wherein: the optical engine comprises a light source module, a shaping module and a microelectronic scanning galvanometer;
the microelectronic scanning galvanometer is arranged close to the lens, and the shaping module is positioned between the microelectronic scanning galvanometer and the light source module;
the light source module is used for emitting the light beam group;
the shaping module is used for shaping the light beam group emitted from the light source module;
and the microelectronic scanning galvanometer is used for scanning and projecting the shaped light beam group to the optical fusion device.
13. The smart eyewear of claim 12, wherein: the intelligent glasses further comprise a relay optical object, wherein the relay optical object is arranged on a path of the microelectronic scanning galvanometer projecting the beam group to the optical fusion device and is used for shaping the beam group projected to the optical fusion device.
14. The smart eyewear of any of claims 11-13, wherein: the light beam group is a collimated light beam group, a divergent light beam group or a convergent light beam group.
15. The smart eyewear of any of claims 11-13, wherein: the intelligent glasses are augmented reality glasses or mixed reality glasses.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022459665.2U CN214011669U (en) | 2020-10-29 | 2020-10-29 | Lens and intelligent glasses |
| PCT/CN2021/114458 WO2022088887A1 (en) | 2020-10-29 | 2021-08-25 | Lens and smart glasses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022459665.2U CN214011669U (en) | 2020-10-29 | 2020-10-29 | Lens and intelligent glasses |
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| CN214011669U true CN214011669U (en) | 2021-08-20 |
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| CN202022459665.2U Active CN214011669U (en) | 2020-10-29 | 2020-10-29 | Lens and intelligent glasses |
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| Country | Link |
|---|---|
| CN (1) | CN214011669U (en) |
| WO (1) | WO2022088887A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022088887A1 (en) * | 2020-10-29 | 2022-05-05 | 华为技术有限公司 | Lens and smart glasses |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2979128B1 (en) * | 2013-03-25 | 2017-10-25 | Intel Corporation | Method for displaying an image projected from a head-worn display with multiple exit pupils |
| WO2014209431A1 (en) * | 2013-06-27 | 2014-12-31 | Fusao Ishii | Wearable display |
| JP6966325B2 (en) * | 2015-04-03 | 2021-11-17 | エシロール アンテルナショナルEssilor International | Methods and systems for augmented reality |
| EP3270208B1 (en) * | 2016-07-12 | 2024-03-06 | Essilor International | Method for supplying a display device for an electronic information device |
| CN109459859A (en) * | 2018-12-21 | 2019-03-12 | 舒伟 | A kind of near-eye display system and spectacle virtual monitor |
| CN109633905B (en) * | 2018-12-29 | 2020-07-24 | 华为技术有限公司 | Multi-focal-plane display system and apparatus |
| CN214011669U (en) * | 2020-10-29 | 2021-08-20 | 华为技术有限公司 | Lens and intelligent glasses |
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2020
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| WO2022088887A1 (en) * | 2020-10-29 | 2022-05-05 | 华为技术有限公司 | Lens and smart glasses |
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| WO2022088887A1 (en) | 2022-05-05 |
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