CN113960800A - Augmented reality device, diopter adjusting method thereof and storage medium - Google Patents
Augmented reality device, diopter adjusting method thereof and storage medium Download PDFInfo
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- CN113960800A CN113960800A CN202111316732.8A CN202111316732A CN113960800A CN 113960800 A CN113960800 A CN 113960800A CN 202111316732 A CN202111316732 A CN 202111316732A CN 113960800 A CN113960800 A CN 113960800A
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- 230000003190 augmentative effect Effects 0.000 title claims abstract description 113
- 238000000034 method Methods 0.000 title claims abstract description 28
- 239000004973 liquid crystal related substance Substances 0.000 claims description 54
- 238000001514 detection method Methods 0.000 claims description 51
- 230000003287 optical effect Effects 0.000 claims description 47
- 230000004438 eyesight Effects 0.000 abstract description 59
- 239000011521 glass Substances 0.000 abstract description 14
- 238000012937 correction Methods 0.000 abstract description 6
- 206010047571 Visual impairment Diseases 0.000 abstract description 5
- 230000004393 visual impairment Effects 0.000 abstract description 5
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- 238000004891 communication Methods 0.000 description 6
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- 206010020675 Hypermetropia Diseases 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
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- 230000007613 environmental 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
Abstract
The invention discloses an augmented reality device, a diopter adjusting method and a storage medium thereof. The method comprises the following steps: acquiring the diopter of the eyes of the user; searching for the incidence relation between the preset diopter and the driving voltage to obtain the driving voltage corresponding to the diopter of the eyes of the user; and applying a driving voltage to the diopter adjusting module to adjust the first diopter of the diopter adjusting module, so that the difference value between the first diopter and the diopter of the eyes of the user is smaller than a preset threshold value. The invention can adjust the diopter of the augmented reality equipment, so that the user with abnormal vision can clearly see the image displayed by the augmented reality equipment under the condition of not wearing the vision correction glasses.
Description
Technical Field
The invention relates to the technical field of augmented reality, in particular to augmented reality equipment, a diopter adjusting method and a storage medium thereof.
Background
Augmented reality devices (AR devices for short) are an emerging product that combines multiple fields of optics, electronics, software, etc., such as AR glasses. The augmented reality device can superimpose a real environment and a virtual object to the same picture or space in real time and exist simultaneously, and a user can feel the reality of 'being personally on the scene' experienced in the objective physical world through the augmented reality device, break through space, time and other objective limitations and feel the experience which cannot be experienced in the real world in person.
At present, diopter adjustment cannot be realized by the existing augmented reality equipment, when the augmented reality equipment faces to people with abnormal vision (such as myopia or hypermetropia), a scene picture formed by combining a real environment and a virtual object, which can be clear only by wearing myopia glasses or hypermetropia glasses by a user, and when the augmented reality equipment is used by naked eyes of the user with abnormal vision, the scene picture of the real environment and the virtual object is difficult to see clearly.
Disclosure of Invention
The embodiment of the application aims to solve the technical problem that the existing augmented reality equipment cannot realize diopter adjustment by providing the augmented reality equipment, and the diopter adjustment method and the storage medium thereof.
An embodiment of the present application provides an augmented reality device, augmented reality device includes:
an optical waveguide including a coupling-in region and a coupling-out region;
a display device disposed corresponding to the coupling-in area to inject an image into the coupling-in area;
and the diopter adjusting module is arranged on one side of the coupling-out area facing to the eyes.
In an embodiment, the augmented reality device further comprises:
the controller to and be used for detecting the diopter detection module of user's eye diopter, the controller with diopter adjustment module with diopter detection module electric connection, the controller is used for according to user's eye diopter adjusts the first diopter of diopter adjustment module.
In an embodiment, the augmented reality device further comprises:
the diopter adjusting and compensating module is arranged on one side of the optical waveguide, which is far away from the eyes, and corresponds to the diopter adjusting module;
the controller is electrically connected with the diopter adjusting and compensating module and is also used for adjusting the second diopter of the diopter adjusting and compensating module according to the diopter of the eyes of the user.
In an embodiment, the diopter adjusting module is an electrically controlled liquid crystal grating, and the controller is configured to obtain a driving voltage of the diopter adjusting module according to the diopter of the user's eye, and apply the driving voltage to the diopter adjusting module.
In an embodiment, the diopter adjustment compensation module is an electrically controlled liquid crystal grating, and the controller is further configured to apply a voltage with a polarity opposite to that of the driving voltage to the diopter adjustment compensation module.
The embodiment of the application provides a diopter adjusting method of an augmented reality device, which is applied to the augmented reality device and comprises the following steps:
acquiring the diopter of the eyes of the user;
searching for the incidence relation between preset diopter and driving voltage to obtain the driving voltage corresponding to the diopter of the eyes of the user;
and applying the driving voltage to the diopter adjusting module to adjust a first diopter of the diopter adjusting module, so that the difference value between the first diopter and the diopter of the user eyes is smaller than a preset threshold value.
In an embodiment, after the step of applying the driving voltage to the diopter adjustment module to adjust the first diopter of the diopter adjustment module so that the difference between the diopter of the user's eye and the first diopter is smaller than a preset threshold, the method further includes:
acquiring the adjusted first diopter;
when the difference value between the adjusted first diopter and the diopter of the user eyes is smaller than the preset threshold value, applying a voltage with the polarity opposite to that of the driving voltage to the diopter adjustment compensation module so as to adjust the second diopter of the diopter adjustment compensation module.
In an embodiment, after the step of obtaining the diopter of the eye of the user, the method further includes:
judging whether the diopter of the eyes of the user is within a preset diopter interval or not;
and when the diopter of the eyes of the user is not in the preset diopter interval, the step of searching the incidence relation between the preset diopter and the driving voltage to obtain the driving voltage corresponding to the diopter of the eyes of the user is executed.
In addition, to achieve the above object, the present invention further provides an augmented reality device comprising: the diopter adjusting program of the augmented reality device is executed by the processor to realize the steps of the diopter adjusting method of the augmented reality device.
In addition, to achieve the above object, the present invention also provides a storage medium having a diopter adjustment program of an augmented reality device stored thereon, which when executed by a processor, implements the steps of the diopter adjustment method of the augmented reality device described above.
The technical scheme of the augmented reality device, the diopter adjusting method thereof and the storage medium provided in the embodiment of the application at least has the following technical effects or advantages:
the utility model provides an augmented reality equipment includes optical waveguide, display device and diopter adjusting module, and wherein, display device sets up in order to penetrate the coupling-in zone of optical waveguide with the image corresponding to the coupling-in zone of optical waveguide, and diopter adjusting module locates the one side towards eyes of coupling-out zone. The method comprises the following steps: acquiring the diopter of the eyes of the user; searching for the incidence relation between the preset diopter and the driving voltage to obtain the driving voltage corresponding to the diopter of the eyes of the user; and applying a driving voltage to the diopter adjusting module to adjust the first diopter of the diopter adjusting module, so that the difference value between the first diopter and the diopter of the eyes of the user is smaller than a preset threshold value. This application has solved the technical problem that current augmented reality equipment can't realize diopter and adjust through adopting above-mentioned technical scheme, has realized adjusting the diopter of augmented reality equipment, can make the user of visual anomaly under the condition of not wearing vision correction glasses, clear see the image that augmented reality equipment shows, has expanded augmented reality equipment's application scope.
Drawings
Fig. 1 is a schematic flow chart of an embodiment of an augmented reality device according to the present invention;
FIG. 2 is a schematic structural diagram of an electrically controlled liquid crystal grating;
FIG. 3 is a flowchart illustrating a diopter adjustment method of an augmented reality device according to an embodiment of the present invention;
fig. 4 is a schematic flowchart of a diopter adjustment method of an augmented reality device according to another embodiment of the present invention;
fig. 5 is a schematic structural diagram of a hardware operating environment according to an embodiment of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | |
200 | Eyes of |
| 101 | |
300 | Light of |
| 102 | Optical waveguide | A | |
| 103 | Diopter adjusting module | B | |
| 104 | Diopter adjustment compensation module | C | Liquid |
| 105 | Virtual and real image combination unit |
Detailed Description
For a better understanding of the above technical solutions, exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
As shown in fig. 1, in a first embodiment of the present application, the present application provides an augmented reality device including a housing (not shown in fig. 1), an optical waveguide 102, a display device 100, and a diopter adjustment module 103, where the optical waveguide 102 and the display device are mounted on the housing. Wherein the optical waveguide 102 comprises a coupling-in area and a coupling-out area, the display device 100 is used for providing an image to be displayed, the display device 100 corresponds to the coupling-in area to inject the image into the coupling-in area, and the diopter adjustment module 103 is arranged at the side of the coupling-out area facing the eye. For example, after the user wears the augmented reality device, the front of the user's eye 200 is directly opposite to the coupling-out area, and the diopter adjustment module 103 is disposed directly in front of the coupling-out area and between the coupling-out area and the user's eye 200.
The diopter adjusting module 103 and the optical waveguide 102 constitute a virtual image combining unit, and after the display device 100 emits an image, light rays 101 of the image are emitted into the optical waveguide 102 from the coupling-in area of the optical waveguide 102, pass through the coupling-out area of the optical waveguide 102, enter the diopter adjusting module 103, and then are emitted from the light emitting side of the diopter adjusting module 103. After the user wears the augmented reality device, the light 101 of the image emitted by the display device 100 passes through the optical waveguide 102 and the diopter adjusting module 103, and then is emitted from the light emitting side of the diopter adjusting module 103 and enters the eyes 200 of the user, so that the user can see the virtual picture displayed by the augmented reality device.
Specifically, the display device 100 includes a projection device, and the light rays 101 entering the optical waveguide 102 are image light emitted by the projection device. After the light 101 enters the optical waveguide 102 from the coupling-in area of the optical waveguide 102, the light 101 is totally reflected in the optical waveguide 102, and the coupling-out area of the optical waveguide 102 couples the totally reflected and transmitted light 101 out of the optical waveguide 102 and transmits the light to the diopter adjustment module 103. Diopter adjustment module 103 has diopter by itself, and this application calls diopter adjustment module 103's diopter to be first diopter, and diopter adjustment module 103's first diopter can be adjusted. The adjustment of the first diopter can be realized by changing the wavefront of the light 101 (such as the amplitude, the phase and other information of the light) entering the diopter adjusting module 103, after the wavefront of the light 101 is changed, the virtual image distance of the virtual image displayed by the augmented reality device is changed accordingly, and since the virtual image distance and the diopter form a reciprocal relation, the virtual image distance is changed, the first diopter is also changed, namely the adjustment of the first diopter is realized.
When the user wearing the augmented reality device has abnormal vision, such as the user is short-sighted, after the user wears the augmented reality device, the user adjusts the first diopter of the diopter adjusting module 103, the light 101 generated by the display device 100 is transmitted to the diopter adjusting module 103 after being totally reflected by the optical waveguide 102, after the wavefront of the light 101 is changed by the diopter adjusting module 103, the diopter adjusting module 103 realizes the convergence of the light 101, the light 101 enters the eyes of the near-sighted user from the light emitting side of the diopter adjusting module 103, the near-sighted user can clearly see the virtual image displayed by the augmented reality device, the near-sighted user does not need to wear near-sighted glasses additionally, and the application range of the augmented reality device is expanded.
Further, the augmented reality device further comprises a controller and a diopter detection module, wherein the diopter detection module is used for detecting diopter of eyes of the user. Wherein, controller and diopter adjustment module and diopter detection module electric connection, the controller is used for adjusting the first diopter of diopter adjustment module 103 according to the user's eyes diopter that diopter detection module detected.
Specifically, the diopter of the eyes of the user needs to be acquired after the user wears the augmented reality device. On one hand, the diopter of the eyes of the user can be detected by the diopter detection module, the diopter detection module sends out a vision detection image, after the user sees the vision detection image, the vision detection image is also displayed in the eyes 200 of the user, the diopter detection module acquires a vision detection image in the user's eye 200, the acquired vision detection image in the user's eye 200 can be understood as an actual vision detection image, the vision detection image sent by the diopter detection module is a standard vision detection image, can be understood as a standard vision test image, and by comparing the standard vision test image with the actual vision test image, specific difference information between the actual vision test image and the standard vision test image can be acquired, the diopter of the user's eye, that is, the vision power of the user's eye 200, can be obtained through the specific difference information. If the user's eye is myopic, the degree of myopia of the user's eye 200 may be obtained. Wherein, diopter detection module package image device and shooting equipment, the image device is used for sending out vision detection image, and shooting equipment is arranged in shooting the vision detection image in user's eyes 200, and the image device can be acted as by above-mentioned display device 100, is favorable to reducing augmented reality equipment's weight and volume. On the other hand, after the user wears the augmented reality device, the user can be prompted to input the eye diopter of the user through voice, the input mode can be voice input and key input, the user can input the eye diopter through the mobile device after the mobile device is connected with the augmented reality device, the eye diopter input by the mobile device is received by the augmented reality device, and therefore the eye diopter and the like of the user can be obtained.
Further, according to the display characteristics of the optical system of the augmented reality device, not only the virtual image but also the real image of the real world needs to be displayed, however, considering the problem of the first diopter change of the diopter adjustment module 103, the optical system formed by the diopter adjustment module 103 and the optical waveguide 102 may affect the natural environmental light entering into the user's eye 200, i.e., the virtual image seen by the user is clear and normal, but the natural ambient light 300 is directly injected into the waveguide 102, and is emitted by the waveguide 102 and then is emitted through the light-emitting side of the diopter adjustment module 103, and further enters the eyes of the user, although the real image seen by the user is clear, the seen real image is distorted, that is, the seen real image is inaccurate, and the user is easily influenced to accurately judge the position information of the object in the real world. Based on this, the diopter adjustment compensation module 104 is arranged on the propagation path of the natural environment light 300 of the augmented reality device, so as to solve the problem of distortion of the real image.
As shown in fig. 1, the augmented reality device further includes: the diopter adjustment compensation module 104 is disposed on one side of the optical waveguide 102 away from the eye, and is disposed corresponding to the diopter adjustment module 103, it can be understood that the diopter adjustment module 103 is disposed on one side of the optical waveguide 102 close to the eye, the diopter adjustment compensation module 104 is disposed on the other side, the diopter adjustment compensation module 104 is opposite to the diopter adjustment module 103, and the optical waveguide 102 is sandwiched between the diopter adjustment module 103 and the diopter adjustment compensation module 104. The natural environment light 300 is injected into the diopter adjustment compensation module 104 from the light-in side of the diopter adjustment compensation module 104, and is emitted from the light-out side of the diopter adjustment module 103 after passing through the diopter adjustment compensation module 104, the optical waveguide 102 and the diopter adjustment module 103 in sequence. The diopter adjustment compensation module 104, the optical waveguide 102 and the diopter adjustment module 103 constitute a virtual-real image combining unit 105, and the virtual image and the real image can be viewed through the virtual-real image combining unit 105. The light 101 emitted from the display device 100 sequentially passes through the coupling-in area of the optical waveguide 102, the coupling-out area of the optical waveguide 102 and the diopter adjustment module 103 to enter the user's eye 200, and the natural environment light 300 sequentially passes through the diopter adjustment compensation module 104, the optical waveguide 102, the coupling-out area of the optical waveguide 102 and the diopter adjustment module 103 to enter the user's eye 200, so that the user can see a virtual image and a real image simultaneously.
Specifically, the diopter adjustment compensation module 104 and the diopter adjustment module 103 have the same characteristics, the diopter adjustment compensation module 104 also has diopter, and the diopter of the diopter adjustment compensation module 104 can be adjusted, which is called that the diopter of the diopter adjustment compensation module 104 is the second diopter in the present application. Further, the controller is further configured to adjust the second refractive power of the compensation module 104 according to the refractive power of the user's eye.
After natural environment light 300 penetrated diopter adjustment compensation module 104, diopter adjustment compensation module 104 changed natural environment light 300's wavefront, thereby realize assembling natural environment light 300 for the first time, natural environment light 300 after assembling for the first time gets into optical waveguide 102, natural environment light 300 after assembling for the first time penetrates optical waveguide 102 and then penetrates diopter adjustment module 103, diopter adjustment module 103 changes the wavefront of natural environment light 300 after assembling for the first time, thereby realize assembling for the second time of natural environment light 300, natural environment light 300 after assembling for the second time gets into user's eyes 200, the user can see clear and undistorted reality image. Specifically, the adjustment of the second diopter can be realized by changing the wavefront (such as the information of the amplitude, the phase, and the like of the light) of the natural environment light 300 entering the diopter adjustment compensation module 104, and the adjustment mode is the same as the adjustment mode of the first diopter, which is not described herein again. After the first diopter is adjusted, the second diopter is continuously adjusted, so that the diopter adjustment compensation module 104 changes the wavefront of the natural environment light 300 in advance, that is, compensates the wavefront of the natural environment light 300 in advance, and thus it can be ensured that the real image seen by the user is normal, and the real image is not distorted.
The wavefront is taken as an example for explanation. When the diopter adjustment module 103 and the diopter adjustment compensation module 104 are not provided, the natural environment light 300 is only incident into the user's eye 200 through the optical waveguide 102, and if the diopter adjustment module 103 and the diopter adjustment compensation module 104 are not provided, the amplitude of the natural environment light 300 emitted from the coupling-out area is a0, and when the diopter adjustment module 103 is provided only in the coupling-out area of the optical waveguide 102, the amplitude of the natural environment light 300 emitted from the light-emitting side of the diopter adjustment module 103 is a1, and the difference between the amplitudes of the natural environment light 300 in the two cases is a1-a0, and after the diopter adjustment module 103 is provided only in the coupling-out area of the optical waveguide 102, the real image seen by the user is distorted. Based on the fact that the diopter adjustment module 103 is arranged in the coupling-out area of the optical waveguide 102, the diopter adjustment compensation module 104 is arranged, after the diopter adjustment compensation module 104 compensates (i.e., adjusts) the amplitude of the natural environment light 300 entering itself, the amplitude of the natural environment light 300 emitted from the light emitting side of the diopter adjustment module 103 is changed to a0, which is equivalent to the fact that the diopter adjustment compensation module 104 compensates the amplitude of the natural environment light 300 by the size of a1-a0, so that the amplitude of the natural environment light 300 is changed from a1 to a0, and thus, the real image is guaranteed not to be distorted, and the user can see a normal real image.
Further, the diopter adjusting module 103 and the diopter adjusting compensation module 104 are both electrically controlled liquid crystal gratings. As shown in fig. 2, fig. 2 is a schematic structural diagram of an electrically controlled liquid crystal grating, wherein a represents a glass substrate, B represents a transparent electrode, and C represents liquid crystal.
Specifically, different driving voltages correspond to different deflection angles according to the characteristics of the electrically controlled liquid crystal grating, and the electrically controlled liquid crystal grating controls the deflection angle corresponding to the deflection of the liquid crystal according to the corresponding driving voltage. After the driving voltage is applied to the electric control liquid crystal grating, the photoelectric parameters of the electric control liquid crystal grating are changed, and the photoelectric parameters comprise the deflection angle of the liquid crystal. Namely, the liquid crystal in the electric control liquid crystal grating can deflect according to the deflection angle corresponding to the driving voltage, after the light enters the electric control liquid crystal grating, the deflection angle of the liquid crystal is changed according to the applied driving voltage, namely, the reflection angle of the light entering the electric control liquid crystal grating in the electric control liquid crystal grating is also changed, so that the emission angle of the light emitted from the light-emitting side of the electric control liquid crystal grating is also changed, and the angle of the corresponding electric control liquid crystal grating for converging the light is also changed. Therefore, the diopter adjustment module 103 can be understood as a first electrically controlled liquid crystal grating, and the diopter adjustment compensation module 104 can be understood as a second electrically controlled liquid crystal grating.
Specifically, the diopter adjusting module 103 is a first electrically controlled liquid crystal grating, and the controller is configured to obtain a driving voltage of the diopter adjusting module 103 according to the diopter of the eye of the user, and apply the driving voltage to the diopter adjusting module 103.
The driving voltages corresponding to different user eye diopters are preset, and each user eye diopter is associated with the corresponding driving voltage, so that the association relation between the preset diopter and the driving voltage is formed. After the controller obtains the diopter of the eyes of the user, the controller searches the association relation according to the diopter of the eyes of the user, and can search the driving voltage corresponding to the diopter of the eyes of the user. For example, one set of relationships among the correlations is diopter: -2.5D-drive voltage: and +1.2V, if the diopter of the eyes of the user is-2.5D, the driving voltage corresponding to the diopter of the eyes of the user is +1.2V after searching. After the corresponding driving voltage is obtained according to the diopter of the eyes of the user, the obtained driving voltage is applied to the first electric control liquid crystal grating, and liquid crystal in the first electric control liquid crystal grating deflects according to the deflection angle corresponding to the applied driving voltage. For example, if the current angle of the liquid crystal is 0 degrees, the driving voltage is +1.2V, and the corresponding deflection angle is 10 degrees, the liquid crystal is deflected from 0 degrees to 10 degrees. After liquid crystal in the first electric control liquid crystal grating deflects according to a deflection angle corresponding to an applied driving voltage, the wavefront of light 101 emitted by the display device changes, and as the wavefront of the light 101 changes, the virtual image distance of a virtual image displayed by the augmented reality device also changes, the first diopter of the diopter adjusting module 103 is adjusted, so that the adjusted first diopter is matched with the diopter of eyes of a user. If the user wearing the augmented reality device is near-sighted, after the first diopter of the diopter adjusting module 103 is adjusted, the user can wear the myopia glasses, so that the vision correction of the user is realized, and the user can clearly see the virtual image displayed by the augmented reality device without wearing the vision correcting glasses.
The diopter adjustment compensation module 104 is a second electrically controlled liquid crystal grating, and the controller is further configured to apply a voltage with a polarity opposite to that of the driving voltage to the diopter adjustment compensation module 104.
Similarly, after the second electrically controlled liquid crystal grating is arranged and a voltage with the polarity opposite to that of the acquired driving voltage is applied to the second electrically controlled liquid crystal grating, the liquid crystal in the second electrically controlled liquid crystal grating deflects according to the deflection angle corresponding to the voltage with the polarity opposite to that of the driving voltage. For example, the driving voltage is +1.2V, the corresponding deflection angle is 10 degrees, the voltage with the opposite polarity to the driving voltage is-1.2V, the corresponding deflection angle is 10 degrees, the current angle of the liquid crystal in the second electrically controlled liquid crystal grating is 10 degrees, and the liquid crystal in the second electrically controlled liquid crystal grating is deflected from 10 degrees to 0 degrees. Furthermore, after the natural environment light 300 sequentially passes through the second electrically controlled liquid crystal grating, the optical waveguide 102 and the first electrically controlled liquid crystal grating, the user can see a clear and normal real image. If augmented reality equipment shows virtual image and reality image simultaneously, the user can be clear see the virtual image, also can see clear and normal reality image, need not the user of visual anomaly and additionally wears the eyesight correction glasses, for the user experience augmented reality equipment of visual anomaly brought the facility, enlarged the application scope of augmented reality equipment.
Based on the augmented reality device in the first embodiment, the application also provides a diopter adjustment method of the augmented reality device. It should be noted that, although a logical order is shown in the flow chart, in some cases, the steps shown or described may be performed in an order different than that shown or described herein.
As shown in fig. 3, in a second embodiment of the present application, a diopter adjustment method for an augmented reality device includes the following steps:
step S210: and acquiring the diopter of the eyes of the user.
In this embodiment, the diopter of the eyes of the user needs to be acquired after the user wears the augmented reality device. On one hand, the diopter of the eyes of the user can be detected by the diopter detection module, the diopter detection module sends out a vision detection image, after the user sees the vision detection image, the vision detection image is also displayed in the eyes 200 of the user, the diopter detection module acquires a vision detection image in the user's eye 200, the acquired vision detection image in the user's eye 200 can be understood as an actual vision detection image, the vision detection image sent by the diopter detection module is a standard vision detection image, can be understood as a standard vision test image, and by comparing the standard vision test image with the actual vision test image, specific difference information between the actual vision test image and the standard vision test image can be acquired, the diopter of the user's eye, that is, the vision power of the user's eye 200, can be obtained through the specific difference information. If the user's eye is myopic, the degree of myopia of the user's eye 200 may be obtained.
Wherein, diopter detection module package image device and shooting equipment, the image device is used for sending out vision detection image, and shooting equipment is arranged in shooting the vision detection image in user's eyes 200, and the image device can be acted as by above-mentioned display device 100, is favorable to reducing augmented reality equipment's weight and volume. If the vision of the eyes is normal, the shot actual vision detection image is basically the same as the standard vision detection image, if the eyes are short-sighted, the shot actual vision detection image is smaller than the standard vision detection image, the shot actual vision detection image is gradually adjusted to the standard vision detection image, and the variation of the shot actual vision detection image is the specific difference information between the shot actual vision detection image and the standard vision detection image. For example, the standard vision test image is a ring and is recorded as a standard ring, then the photographed actual vision test image is also a ring and is recorded as an actual measurement ring, because the actual measurement ring is smaller than the standard ring, wherein the radii of the actual measurement ring and the standard ring are known, the specific difference information of the standard ring and the actual measurement ring can be represented by the radius difference, and the diopter of the eyes of the user can be obtained by adjusting the radius difference, the focal length of the photographing device and the actual measurement ring to the variation of the standard ring.
On the other hand, after the user wears the augmented reality device, the user can be prompted to input the eye diopter of the user through voice, the input mode can be voice input and key input, the user can input the eye diopter through the mobile device after the mobile device is connected with the augmented reality device, the eye diopter input by the mobile device is received by the augmented reality device, and therefore the eye diopter and the like of the user can be obtained.
Step S220: and searching the incidence relation between the preset diopter and the driving voltage to obtain the driving voltage corresponding to the diopter of the eyes of the user.
In this embodiment, diopter adjusting module 103 is an electronic control liquid crystal grating, the electronic control liquid crystal grating has diopter, the diopter of the electronic control liquid crystal grating can be changed according to the change of the driving voltage, different driving voltages are applied to the electronic control liquid crystal grating, the diopter of the electronic control liquid crystal grating is correspondingly changed according to the applied driving voltage, when diopter adjusting module 103 is the electronic control liquid crystal grating, diopter adjusting module 103 has diopter, the diopter of diopter adjusting module 103 is first diopter in this application. The driving voltages corresponding to different user eye diopters are preset, each user eye diopter is associated with the corresponding driving voltage, and the association relation between the preset diopter and the driving voltage is formed. After the diopter of the eyes of the user is obtained, the incidence relation is searched according to the diopter of the eyes of the user, and the driving voltage corresponding to the diopter of the eyes of the user can be searched. For example, one set of relationships among the correlations is diopter: -2.5D-drive voltage: and +1.2V, if the diopter of the eyes of the user is-2.5D, the driving voltage corresponding to the diopter of the eyes of the user is +1.2V after searching.
Further, it is considered that the vision of some users is normal and the vision of some users is abnormal, such as myopia. If the vision of the user is normal, the first diopter of the diopter adjustment module 103 does not need to be adjusted, and if the vision of the user is abnormal, the user may have difficulty clearly seeing the image displayed on the augmented reality device, the first diopter of the diopter adjustment module 103 needs to be adjusted. Based on this, after the step of obtaining the diopter of the eye of the user, the method further comprises the following steps: judging whether the diopter of the eyes of the user is within a preset diopter interval or not; when the diopter of the user 'S eyes is not within the preset diopter interval, then step S220 is executed, that is, a step of searching for the association relationship between the preset diopter and the driving voltage to obtain the driving voltage corresponding to the diopter of the user' S eyes is executed.
The preset diopter interval is a diopter range corresponding to the object which can be normally observed by human eyes, the diopter of the human eyes under the normal condition is 0, and the human eyes can normally observe the object in the range of 0-0.5D generally, namely, the object can be clearly seen, so the preset diopter interval can be set to be 0, 0.5D. If the diopter of the eyes of the user is within the preset diopter interval, the augmented reality device normally displays the image without adjusting the first diopter of the diopter adjusting module 103, i.e., without executing step S220. If the diopter of the eyes of the user is not within the preset diopter interval and the vision of the user is abnormal, the first diopter of the diopter adjusting module 103 needs to be adjusted, and then the step S220 is executed.
Step S230: and applying the driving voltage to the diopter adjusting module to adjust a first diopter of the diopter adjusting module, so that the difference value between the first diopter and the diopter of the user eyes is smaller than a preset threshold value.
In this embodiment, since the diopter of the human eye is in the range of 0 to 0.5D, the human eye can normally observe objects, the preset threshold value may be set according to the preset diopter interval, for example, the preset threshold value is a value belonging to the preset diopter interval. If the difference between the first diopter and the diopter of the user's eye is smaller than the preset threshold after adjusting the first diopter of the diopter adjustment module 103, it indicates that the first diopter is closer to the diopter of the user's eye or the first diopter is equal to the diopter of the user's eye, and the diopter adjustment module 103 may be adapted to the user's eye, that is, the user can clearly see the image displayed by the augmented reality device when wearing the augmented reality device.
Specifically, after the driving voltage corresponding to the diopter of the eye of the user is obtained, the obtained driving voltage is applied to the diopter adjusting module 103, the diopter adjusting module 103 works according to the driving voltage, after the light 101 enters the diopter adjusting module 103, the wavefront of the light 101 changes, because the wavefront of the light 101 changes, the virtual image distance of the virtual image displayed by the augmented reality device also changes accordingly, after the light 101 is emitted from the light emitting side of the diopter adjusting module 103, the light 101 is converged by the diopter adjusting module 103, so that the first diopter is adjusted, and after the first diopter is adjusted to be smaller than a preset threshold value, the user can clearly see the virtual image displayed by the augmented reality device.
If the eyes of the user are short-sighted, after the acquired driving voltage is applied to the diopter adjusting module 103, the first diopter is adjusted to be smaller than the preset threshold value, the augmented reality device is equivalent to a pair of myopia glasses capable of correcting the vision of the user, and the user wears the myopia glasses like the user, so that the vision correction of the user is realized, the user can clearly see the virtual image displayed by the augmented reality device under the condition that the user does not wear the myopia glasses, and the convenience is brought to the user for experiencing the display of the augmented reality device.
According to the technical scheme, the diopter of the eyes of the user is obtained, the incidence relation between the preset diopter and the driving voltage is searched, the driving voltage corresponding to the diopter of the eyes of the user is obtained, the driving voltage is applied to the diopter adjusting module, the first diopter of the diopter adjusting module is adjusted, the difference value between the first diopter and the diopter of the eyes of the user is smaller than the preset threshold value, the diopter of the augmented reality device is adjusted, the user with abnormal vision can clearly see the image displayed by the augmented reality device under the condition that the user does not wear the vision correction glasses, and the application range of the augmented reality device is expanded.
As shown in fig. 4, in the third embodiment of the present application, the following steps are further included after step S230:
step S240: and acquiring the adjusted first diopter.
Step S250: when the difference value between the adjusted first diopter and the diopter of the user eyes is smaller than the preset threshold value, applying a voltage with the polarity opposite to that of the driving voltage to the diopter adjustment compensation module so as to adjust the second diopter of the diopter adjustment compensation module.
In this embodiment, the diopter adjustment compensation module 104 also has a diopter, and the diopter of the diopter adjustment compensation module 104 can also be adjusted, which is called that the diopter of the diopter adjustment compensation module 104 is the second diopter in this application.
After step S230 is completed, there may be a case where the adjusted first diopter is smaller than the preset threshold value, and there may also be a case where the adjusted first diopter is greater than or equal to the preset threshold value. In order to ensure more accurate adjustment, after the first diopter is adjusted, the first diopter is judged for the second time, namely the adjusted first diopter is obtained, the specific difference information between the adjusted first diopter obtaining mode and the actual vision detection image and the standard vision detection image shot by the shooting device is obtained, the detection mode for obtaining the diopter of the eyes of the user is the same, and details are not repeated here. By this detection method, after step S230 is completed, the current user eye diopter of the user can be obtained, and the current user eye diopter is the first diopter after adjustment. And further judging whether the adjusted first diopter is smaller than a preset threshold value, if so, returning to execute the step S210 until the first diopter is adjusted to be smaller than the preset threshold value. And if the adjusted first diopter is smaller than the preset threshold value, adjusting the second diopter of the diopter adjustment compensation module 104. The diopter adjustment compensation module 104 is applied with a voltage with a polarity opposite to that of the driving voltage, the diopter adjustment compensation module 104 controls the liquid crystal in the diopter adjustment compensation module to deflect a corresponding deflection angle according to the voltage with the polarity opposite to that of the driving voltage, and the wavefront of the natural environment light 300 is changed due to the deflection of the liquid crystal, so that the adjustment of the second diopter can be realized. Assuming that the driving voltage corresponding to adjusting the first diopter to be less than the preset threshold is +2.5V, and the deflection angle corresponding to +2.5V is 25 degrees, the voltage applied by the controller to the diopter adjustment compensation module 104 is-2.5V. When the diopter adjustment compensation module 104 works according to the voltage with the polarity opposite to that of the driving voltage, the liquid crystal deflects by 25 degrees at the original angle, and before the liquid crystal deflects, the wavefront of the current natural environment light 300 is changed, so that the adjustment of the second diopter is realized. The adjustment of the second diopter can be understood as that the diopter adjustment compensation module 104 changes the wavefront of the natural environment light 300 in advance, that is, compensates the wavefront of the natural environment light 300 in advance, so that the compensation of the first diopter is realized, and the distortion of the real image seen by the user is avoided. After the first diopter is adjusted, the second diopter is adjusted, so that the user can see the virtual image clearly and can see a clear and normal real image, and the real image is not distorted.
The wavefront is taken as an example for explanation. When the diopter adjustment module 103 and the diopter adjustment compensation module 104 are not provided, the natural environment light 300 is only incident into the user's eye 200 through the optical waveguide 102, and if the diopter adjustment module 103 and the diopter adjustment compensation module 104 are not provided, the amplitude of the natural environment light 300 emitted from the coupling-out area is a0, and when the diopter adjustment module 103 is provided only in the coupling-out area of the optical waveguide 102, the amplitude of the natural environment light 300 emitted from the light-emitting side of the diopter adjustment module 103 is a1, and the difference between the amplitudes of the natural environment light 300 in the two cases is a1-a0, and after the diopter adjustment module 103 is provided only in the coupling-out area of the optical waveguide 102, the real image seen by the user is distorted. Based on the fact that the diopter adjustment module 103 is arranged in the coupling-out area of the optical waveguide 102, the diopter adjustment compensation module 104 is arranged, after the diopter adjustment compensation module 104 compensates (adjusts) the amplitude of the natural environment light 300 entering itself, the amplitude of the natural environment light 300 emitted from the light emitting side of the diopter adjustment module 103 is changed into a0, which is equivalent to the fact that the diopter adjustment compensation module 104 compensates the amplitude of the natural environment light 300 by the size of a1-a0, so that the amplitude of the natural environment light 300 is changed from a1 to a0, and thus, the real image can be guaranteed not to be distorted, and a user can see a normal real image.
Further, in consideration of the case where the adjusted first diopter is greater than or equal to the preset threshold after the step S230 is performed, this case requires applying the driving voltage to the diopter adjustment module 103 for multiple times to adjust the first diopter for multiple times, so that the first diopter is smaller than the preset threshold. If the first diopter is adjusted a plurality of times so that the first diopter is smaller than the preset threshold value, it is necessary to acquire a total driving voltage of the driving voltages applied to the diopter adjustment module 103 a plurality of times and then apply a voltage having a polarity opposite to that of the total driving voltage to the diopter adjustment compensation module 104. Wherein the total driving voltage is the sum of the driving voltages applied to the diopter adjustment module 103.
According to the technical scheme, the adjusted first diopter is obtained, when the difference value between the adjusted first diopter and the diopter of the eyes of the user is smaller than the preset threshold value, the diopter adjusting and compensating module is applied with the voltage with the polarity opposite to that of the driving voltage, and the second diopter of the diopter adjusting and compensating module is adjusted through the technical means, so that the diopter of the diopter adjusting module is compensated, the real image seen by the user cannot be distorted, and the user can conveniently determine the position information of the real object according to the seen real image.
Further, as shown in fig. 5, fig. 5 is a schematic structural diagram of a hardware operating environment according to an embodiment of the present invention.
It should be noted that fig. 5 is a schematic structural diagram of a hardware operating environment of an augmented reality device.
As shown in fig. 5, the augmented reality device may include: a processor 1001, such as a CPU, a memory 1005, a user interface 1003, a network interface 1004, a communication bus 1002. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface). The memory 1005 may be a high-speed RAM memory or a non-volatile memory (e.g., a magnetic disk memory). The memory 1005 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the augmented reality device architecture shown in fig. 5 is not limiting to augmented reality devices and may include more or fewer components than shown, or some components in combination, or a different arrangement of components.
As shown in fig. 5, a memory 1005, which is a storage medium, may include therein an operating system, a network communication module, a user interface module, and a diopter adjustment program of the augmented reality device. The operating system is a program for managing and controlling hardware and software resources of the augmented reality device, a diopter adjustment program of the augmented reality device, and the running of other software or programs.
In the augmented reality device shown in fig. 5, the user interface 1003 is mainly used for connecting a terminal and performing data communication with the terminal; the network interface 1004 is mainly used for the background server and performs data communication with the background server; the processor 1001 may be used to invoke a diopter adjustment program of the augmented reality device stored in the memory 1005.
In this embodiment, the augmented reality device includes: a memory 1005, a processor 1001, and a diopter adjustment program of an augmented reality device stored on the memory 1005 and executable on the processor, wherein:
when the processor 1001 calls the diopter adjustment program of the augmented reality device stored in the memory 1005, the following operations are performed:
acquiring the diopter of the eyes of the user;
searching for the incidence relation between preset diopter and driving voltage to obtain the driving voltage corresponding to the diopter of the eyes of the user;
and applying the driving voltage to the diopter adjusting module to adjust a first diopter of the diopter adjusting module, so that the difference value between the first diopter and the diopter of the user eyes is smaller than a preset threshold value.
When the processor 1001 calls the diopter adjustment program of the augmented reality device stored in the memory 1005, the following operations are also performed:
acquiring the adjusted first diopter;
when the difference value between the adjusted first diopter and the diopter of the user eyes is smaller than the preset threshold value, applying a voltage with the polarity opposite to that of the driving voltage to the diopter adjustment compensation module so as to adjust the second diopter of the diopter adjustment compensation module.
When the processor 1001 calls the diopter adjustment program of the augmented reality device stored in the memory 1005, the following operations are also performed:
judging whether the diopter of the eyes of the user is within a preset diopter interval or not;
and when the diopter of the eyes of the user is not in the preset diopter interval, the step of searching the incidence relation between the preset diopter and the driving voltage to obtain the driving voltage corresponding to the diopter of the eyes of the user is executed.
Further, based on the same inventive concept, the present application also provides an augmented reality device comprising: the diopter adjusting program of the augmented reality device is executed by the processor to realize the steps of the diopter adjusting method of the augmented reality device.
Further, based on the same inventive concept, the present application also provides a storage medium having a diopter adjustment program of an augmented reality device stored thereon, where the diopter adjustment program of the augmented reality device is executed by a processor to implement the steps of the diopter adjustment method of the augmented reality device.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It should be noted that in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. An augmented reality device, comprising:
an optical waveguide including a coupling-in region and a coupling-out region;
a display device disposed corresponding to the coupling-in area to inject an image into the coupling-in area;
and the diopter adjusting module is arranged on one side of the coupling-out area facing to the eyes.
2. The augmented reality device of claim 1, further comprising:
the controller to and be used for detecting the diopter detection module of user's eye diopter, the controller with diopter adjustment module with diopter detection module electric connection, the controller is used for according to user's eye diopter adjusts the first diopter of diopter adjustment module.
3. The augmented reality device of claim 2, further comprising:
the diopter adjusting and compensating module is arranged on one side of the optical waveguide, which is far away from the eyes, and corresponds to the diopter adjusting module;
the controller is electrically connected with the diopter adjusting and compensating module and is also used for adjusting the second diopter of the diopter adjusting and compensating module according to the diopter of the eyes of the user.
4. The augmented reality device of claim 3, wherein the diopter adjustment module is an electrically controlled liquid crystal grating, and the controller is configured to obtain a driving voltage of the diopter adjustment module according to the diopter of the eye of the user and apply the driving voltage to the diopter adjustment module.
5. The augmented reality device of claim 3, wherein the diopter adjustment compensation module is an electrically controlled liquid crystal grating, the controller further configured to apply a voltage to the diopter adjustment compensation module opposite in polarity to the driving voltage.
6. A diopter adjustment method of an augmented reality device, applied to the augmented reality device according to any one of claims 1 to 5, comprising:
acquiring the diopter of the eyes of the user;
searching for the incidence relation between preset diopter and driving voltage to obtain the driving voltage corresponding to the diopter of the eyes of the user;
and applying the driving voltage to the diopter adjusting module to adjust a first diopter of the diopter adjusting module, so that the difference value between the first diopter and the diopter of the user eyes is smaller than a preset threshold value.
7. The method of claim 6, wherein the step of applying the driving voltage to the diopter adjustment module to adjust a first diopter of the diopter adjustment module such that the difference between the user eye diopter and the first diopter is less than a preset threshold value further comprises:
acquiring the adjusted first diopter;
when the difference value between the adjusted first diopter and the diopter of the user eyes is smaller than the preset threshold value, applying a voltage with the polarity opposite to that of the driving voltage to the diopter adjustment compensation module so as to adjust the second diopter of the diopter adjustment compensation module.
8. The method of claim 6, wherein said step of obtaining diopters of the user's eye is followed by further comprising:
judging whether the diopter of the eyes of the user is within a preset diopter interval or not;
and when the diopter of the eyes of the user is not in the preset diopter interval, the step of searching the incidence relation between the preset diopter and the driving voltage to obtain the driving voltage corresponding to the diopter of the eyes of the user is executed.
9. An augmented reality device, comprising: memory, processor and a diopter adjustment program of an augmented reality device stored on said memory and executable on said processor, said diopter adjustment program of an augmented reality device implementing the steps of the diopter adjustment method of an augmented reality device according to any one of claims 6 to 8 when executed by said processor.
10. A storage medium on which a diopter adjustment program of an augmented reality device is stored, the diopter adjustment program of the augmented reality device implementing the steps of the diopter adjustment method of the augmented reality device according to any one of claims 6 to 8 when executed by a processor.
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