CN209803458U - head-mounted variable-focus intelligent display device - Google Patents

head-mounted variable-focus intelligent display device Download PDF

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Publication number
CN209803458U
CN209803458U CN201920853794.4U CN201920853794U CN209803458U CN 209803458 U CN209803458 U CN 209803458U CN 201920853794 U CN201920853794 U CN 201920853794U CN 209803458 U CN209803458 U CN 209803458U
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module
lens
target
image
diopter information
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李俊生
黄通兵
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Beijing seven Xin Yi Wei Technology Co., Ltd.
Qixin Yiwei (Shenzhen) Technology Co., Ltd.
Beijing Qixin Yiwei Information Technology Co Ltd
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Beijing Seven Xin Yi Wei Technology Co Ltd
Beijing Qixin Yiwei Information Technology Co Ltd
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Abstract

The embodiment of the utility model discloses a head-wearing type variable focal length intelligent display device, which comprises a display screen, a lighting module, an image acquisition module, a storage judgment module, a zoom module and a lens module; the illumination module illuminates a target area; the image acquisition module acquires a characteristic image of the target area and sends the characteristic image to the storage judgment module; the storage judging module stores the user characteristic information and diopter information, compares the characteristic image with the user characteristic information, determines target diopter information matched with the characteristic image, and sends the target diopter information to the zooming module; the zooming module controls the lens module and/or the display screen according to the target diopter information so that the display screen can display a clear image at the eye position. The embodiment of the utility model provides an adopt the mode of control lens module and/or display screen to realize matching target diopter information, and focus and distance can finely tune, have reduced the manufacturing cost of equipment, have enlarged its application scope.

Description

Head-mounted variable-focus intelligent display device
Technical Field
The embodiment of the utility model provides a wearable equipment technique especially relates to a focus intelligent display device can be zoomed to wear-type.
background
The head-wearing intelligent display device is a device manufactured by adopting a brand new technology in modern display technology. With the development of a high-resolution image reconstruction technology, the perfection of a binary optical theory and design and the maturity of a holographic technology, a new way is opened for the design of the head-mounted intelligent display device, and more head-mounted intelligent display devices can enter the public visual field. Exemplary, such as Virtual Reality (VR) devices, Augmented Reality (AR) devices, Mixed Reality (MR) devices, eye tracking devices, and the like.
the prior art head-mounted intelligent display device generally adopts a mode of configuring a lens group, wherein the lens group comprises lenses with different diopter information, the lenses are arranged in the intelligent display device, and which lens is needed to drive the lens to move to the front of the eyes of a user so that the user can use the head-mounted variable-focus intelligent display device under the lens. The intelligent display device embodying the head-mounted variable focal length realizes focal length adjustment by selecting the lens corresponding to diopter information.
in realizing the utility model discloses the in-process, utility model people discover to have following problem among the prior art at least: in order to meet the requirements of users with more different diopter information as much as possible, it is necessary to arrange as many lenses as possible in the lens group, each lens corresponding to one diopter information. The above-described manner of configuring the lens group will increase the manufacturing cost of the head-mounted variable focal length smart display device. In addition, as the weight of the head-mounted variable focal length smart display device increases with the increase of the number of lenses in the lens group, and the increase of importance of the smart display device will affect the user experience, the above-mentioned manner of configuring the lens group has a requirement on the number of lenses, that is, the lenses corresponding to all diopter information cannot be included. However, in order to cover a larger diopter information range, the lenses are usually configured in a manner of diopter information with a larger interval, which may cause that the user can only use the lens close to the diopter information of the user, but cannot use the lens corresponding to the diopter information of the user, so that the smart display device cannot achieve diopter information fine adjustment, and further, the application range of the head-mounted variable focal length smart display device is affected.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a focus intelligent display device can zoom to the wear-type is reduced focus intelligent display device's manufacturing cost, enlarges application scope.
the embodiment of the utility model provides a focus intelligent display device can zoom to wear, this focus intelligent display device can zoom to wear includes the display screen, and this focus intelligent display device can zoom to wear still includes: the device comprises an illumination module, an image acquisition module, a storage judgment module, a zooming module and a lens module; the lens module comprises a zoom function lens group and a control end;
The illumination module is used for illuminating a target area;
the image acquisition module is used for acquiring a characteristic image of the target area and sending the characteristic image to the storage judgment module;
The storage judging module is used for comparing the received characteristic image with the stored user characteristic information, determining target diopter information matched with the characteristic image and sending the target diopter information to the zooming module;
the zoom module is used for controlling the lens module and/or the display screen according to the target diopter information so as to enable the display screen to display a clear image at the eye position;
The output end of the image acquisition module is connected with the input end of the storage judgment module, the output end of the storage judgment module is connected with the input end of the zooming module, and the output end of the zooming module is connected with the control end of the lens module and/or the control end of the display screen.
Further, the zoom module is configured to control the lens module and/or the display screen according to the target diopter information, so that the display screen displays a clear image at the eye position, including:
the zooming module is used for controlling the control end of the lens module according to the target diopter information so as to adjust the zooming functional lens group to a target focal length; and/or
the zoom module is used for controlling the control end of the lens module and/or the control end of the display screen according to the target diopter information so as to adjust the distance between the lens module and the display screen to a target distance.
Further, the zoom function lens group comprises at least one multi-focal length lens group, and the multi-focal length lens group comprises two multi-focal length lenses;
The zooming module is used for controlling the control end of the lens module according to the target diopter information so as to adjust the multi-focal-length lens group to a target focal length.
further, the zoom module includes a motor.
Further, the head-mounted variable focus intelligent display device further comprises an adjusting knob;
The multi-focal-length lens group is controlled to move by adjusting the adjusting knob so as to adjust to a target focal length;
The output end of the adjusting knob is connected with the control end of the lens module.
Further, the zoom function lens group includes at least one zoom lens;
the zoom module is used for controlling the control end of the lens module according to the target diopter information so as to enable the zoom lens to be adjusted to the target focal length.
Further, the zoom module comprises a pulse width modulation circuit or an automatic gain control circuit.
Further, the head-mounted variable focus intelligent display device further comprises an optometry module;
the optometry module is used for detecting diopter information and sending the diopter information to the storage judgment module, and the storage judgment module is used for correspondingly storing the diopter information and the characteristic image received from the image acquisition module;
And the output end of the optometry module is connected with the input end of the storage judgment module.
Further, the optometry module is further configured to send the diopter information to the zooming module, and the zooming module is configured to control a control end of the lens module according to the diopter information, so that the zooming functional lens group is adjusted to a target focal length;
The output end of the optometry module is also connected with the input end of the zooming module.
Further, the head-mounted variable focus intelligent display device further comprises a prompt module;
the storage judging module or the optometry module is further used for sending the diopter information to the prompting module, and the prompting module is used for generating a prompting instruction according to the diopter information so that a user can obtain the diopter information according to the prompting signal instruction;
The input end of the prompting module is connected with the output end of the storage judging module and/or the output end of the optometry module.
Further, the head-mounted variable focus intelligent display device further comprises an input module;
The input module is used for acquiring diopter information input by a user and sending the diopter information input by the user to the storage judging module, and the storage judging module is also used for correspondingly storing the diopter information input by the user and the characteristic image received from the image acquisition module;
The output end of the input module is connected with the input end of the storage judging module.
Further, the feature image includes a face image or an eye image.
Further, the head-mounted variable focus intelligent display device further comprises an eye tracking module, wherein the illumination module comprises an infrared light source;
The lighting module is used for emitting test light;
the image acquisition module is also used for acquiring an eye movement tracking image under the test light and sending the eye movement tracking image to the eye movement tracking module;
the eye movement tracking module is used for tracking the sight of the user according to the eye movement tracking image to generate a sight tracking result, and executing operation corresponding to the sight tracking result to obtain an operation result.
The embodiment of the utility model provides a be used for throwing light on to the target area through lighting module, image acquisition module is used for gathering the characteristic image of target area, and send characteristic image to storage judging module, storage judging module be used for saving user characteristic information and with user characteristic information assorted diopter information, compare received characteristic image with the user characteristic information of storage, confirm with characteristic image assorted target diopter information, and send target diopter information to the module of zooming, the module of zooming is used for controlling lens module and/or display screen according to target diopter information, so that the display screen shows clear image in the eye position. The lens module is set to be the zooming functional lens group, and the target diopter information is matched by adopting the control lens module and/or the display screen, so that the number of the lenses is reduced, and the manufacturing cost of the head-mounted variable-focus intelligent display device is further reduced. In addition, the focal length of the lens and the distance between the lens module and the display screen can be finely adjusted in an infinite order, so that the application range of the head-mounted variable-focal-length intelligent display device is expanded.
Drawings
fig. 1 is a schematic structural diagram of a head-mounted variable focus intelligent display device according to a first embodiment of the present invention;
Fig. 2 is a schematic structural diagram of another head-mounted variable focus intelligent display device according to a first embodiment of the present invention;
fig. 3 is a schematic structural diagram of a head-mounted variable focus intelligent display device according to a first embodiment of the present invention;
Fig. 4 is a schematic structural diagram of a head-mounted variable focal length intelligent display device configured with a multi-focal length lens group according to a first embodiment of the present invention;
Fig. 5 is a schematic structural diagram of a head-mounted variable focus intelligent display device according to a second embodiment of the present invention;
fig. 6 is a schematic diagram of adjusting a distance between a lens module and a display screen according to a second embodiment of the present invention;
Fig. 7 is a schematic view of another embodiment of the present invention, illustrating distance adjustment between a lens module and a display screen;
Fig. 8 is a schematic diagram of another embodiment of the present invention, in which the distance between the lens module and the display screen is adjusted;
Fig. 9 is a schematic structural diagram of a head-mounted variable focus intelligent display device according to a third embodiment of the present invention;
fig. 10 is a schematic structural diagram of a head-mounted variable focal length smart display device configured with a multi-focal length lens group according to a third embodiment of the present invention;
Fig. 11 is a schematic structural diagram of another head-mounted variable focal length smart display device configured with a multi-focal length lens group according to a third embodiment of the present invention;
Fig. 12 is a schematic structural diagram of a head-mounted variable focal length intelligent display device configured with a multi-focal length lens group according to a third embodiment of the present invention
Fig. 13 is a schematic structural diagram of a head-mounted variable focus intelligent display device in a fourth embodiment of the present invention.
Detailed Description
the present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and not restrictive thereof, and that various features described in the embodiments may be combined to form multiple alternatives. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is the embodiment of the utility model provides a pair of wear-type intelligent display device that zooms on structure sketch map, this embodiment is applicable can obtain the lens focus condition among the intelligent display device that the variable focal length of clear image adjustment wear-type when the user uses wear-type intelligent display device, and wherein, the intelligent display device that the variable focal length of wear-type can include virtual reality equipment, augmented reality equipment, mixed reality equipment and eye-tracking equipment etc.. As shown in fig. 1, the head-mounted variable focal length intelligent display device may specifically include a display screen 1, and may specifically further include: the device comprises an illumination module 2, an image acquisition module 3, a storage judgment module 4, a zooming module 5 and a lens module 6; the lens module 6 may specifically include a zoom function lens group 61 and a control end 62, and the structure and function thereof will be described below.
The illumination module 2 is used for illuminating the target area.
the image acquisition module 3 is used for acquiring the characteristic image of the target area and sending the characteristic image to the storage judgment module 4.
The storage judging module 4 is used for matching the received characteristic image with the stored user characteristic information, determining target diopter information matched with the characteristic image, and sending the target diopter information to the zooming module 5.
The zoom module 5 is used for controlling the lens module 6 and/or the display screen 1 according to the target diopter information, so that the display screen 1 displays a clear image at the eye position.
the output of image acquisition module 3 links to each other with the input of storage judgment module 4, the output of storage judgment module 4 links to each other with the input of module 5 zooms, the output of module 5 zooms links to each other with the control end 62 of lens module 6 and/or links to each other with the control end 11 of display screen 1 (only show in fig. 1 that the output of module 5 zooms links to each other with the control end 62 of lens module 6, and, the output of module 5 zooms links to each other with the control end 11 of display screen 1).
The embodiment of the utility model provides an in, wear-type intelligent display device has gradually walked into masses field of vision head, and in order to satisfy user's all kinds of demands, need constantly improve wear-type intelligent display device. For users with ametropia, how to solve the ametropia problem of the users needs to be considered in order to enable the users to obtain clear images and achieve the best viewing experience when using the head-mounted intelligent display device. The ametropia refers to the condition that when the eye does not use accommodation, parallel rays cannot form a clear object image on the retina after passing through the refractive action of the eye, and the clear object image is imaged in front of or behind the retina, and specifically can comprise hyperopia, myopia and astigmatism. When light is emitted from an object to another substance with different optical density, the propagation direction of the light is deflected, which is called refraction phenomenon, and the unit representing the size of the refraction phenomenon is called diopter. Illustratively, a +3 diopter lens will focus the parallel rays at 1/3 on the optic.
The head-mounted variable focal length intelligent display device can be correspondingly improved, so that the manufacturing cost of the device can be reduced and the application range of the device can be expanded on the basis that a user can acquire clear images when using the head-mounted variable focal length intelligent display device. When the user uses the head-mounted variable focal length intelligent display device, a clear image can be acquired, specifically, the clear image is displayed at the eye position by the display screen 1. Specifically, the fact that the multiplication of the focal length of the lens and diopter information is equal to 1, that is, the focal length of the lens corresponds to the diopter information, can be matched with the target diopter information by adjusting the focal length of the lens, so that the display screen 1 displays a clear image at the eye position. Furthermore, due to the diopter information, the distance between the lens module 6 and the display screen 1The focal length of the focusing functional lens group 61 in the lens module 6 and the distance satisfy the following formula:wherein D represents diopter information; l represents the distance between the lens module 6 and the display screen 1; f denotes a focal length of the zoom function lens group 61. Therefore, under the condition that the diopter information and the focal length of the zoom functional lens group 61 are determined, the matching with the target diopter information can be realized by adjusting the distance between the lens module 6 and the display screen 1, and further the display screen 1 can display a clear image at the eye position. Based on the above, the following three ways can be formed: in the first mode, the matching with diopter information is realized by adjusting the focal length of a lens, so that a clear image is displayed on the display screen 1 at the eye position; in the second mode, the distance between the lens module 6 and the display screen 1 is adjusted to realize the matching with the target diopter information, so that the display screen 1 displays a clear image at the eye position; and in the third mode, the matching with diopter information is realized by adjusting the focal length of the lens and the distance between the lens module 6 and the display screen 1, so that the display screen 1 displays a clear image at the eye part. The following further describes the head-mounted variable focal length intelligent display device, specifically:
The illumination module 2 may be configured to illuminate a target area, and the image capturing module 3 may be configured to capture a feature image of the target area, where the image capturing module 3 may include a camera. The camera can be an infrared camera and also can be lighting equipment with other light sources. The image acquisition module 3 can send the acquired characteristic image to the storage judgment module 4, the storage judgment module 4 can be used for storing user characteristic information and diopter information matched with the user characteristic information, the received characteristic image is compared with the user characteristic information, the target diopter information corresponding to the characteristic image is determined, the target diopter information is sent to the zooming module 5, and the zooming module 5 can be used for controlling the lens module 6 and/or the display screen 1 according to the target diopter information so that the display screen 1 can display clear images at the eye positions. Wherein the zoom function lens group 61 may include at least one multi-focal length lens group 611 or at least one zoom lens 612, and the multi-focal length lens group 611 may include two multi-focal length lenses (not shown in fig. 1). Because the distance between the lens module 6 and the display screen 1 can be adjusted by adjusting the focal length of the lens and/or adjusting the distance between the lens module 6 and the display screen 1 to match with the target diopter information, and further the display screen 1 displays a clear image at the eye position, the zoom module 5 can be used for controlling the lens module 6 and/or the display screen 1 according to the target diopter information, so that the display screen 1 displays a clear image at the eye position, which can be understood as follows: the zoom module 5 can be used to control the control end 62 of the lens module 6 according to the target diopter information, so as to adjust the zoom function lens group 61 to the target focal length. And/or the zooming module 5 can be used for controlling the control end 11 of the display screen 1 according to the target diopter information so as to adjust the distance between the lens module 6 and the display screen 1 to the target distance. The target focal distance may refer to a focal distance corresponding to the target diopter information. The target distance may refer to a distance corresponding to the target diopter information. In other words, when the focal length of the zoom function lens group 61 is adjusted to the target focal length, the diopter information of the multi-focal-length lens group 611 is the target diopter information. Alternatively, when the distance between the lens module 6 and the display screen 1 is adjusted to the target distance, the diopter information is the target diopter information. Still alternatively, when the zoom function lens group 61 is adjusted to a target focal length and the distance between the lens module 6 and the display screen 1 is adjusted to a target distance, the diopter information is the target diopter information. It should be noted that the target focal length when the zoom function lens group 61 is adjusted to the target focal length, and the distance between the lens module 6 and the display screen 1 is adjusted to the target distance may be different from the target focal length when the zoom function lens group 61 is adjusted to the target focal length. The target distance when adjusting the zoom function lens group 61 to the target focal length and the distance between the lens module 6 and the display screen 1 to the target distance may also be different from the data when adjusting the distance between the lens module 6 and the display screen 1 to the target distance.
the zoom module 5 is configured to control the control end 62 of the lens module 6 according to the target diopter information, so that the zoom function lens group 61 adjusts the focal length to the target focal length, as can be understood as follows: the zoom module 5 may be configured to generate a zoom instruction according to the target diopter information, and send the zoom instruction to the control end 62 of the lens module 6, so that the zoom function lens group 61 adjusts the focal length to the target focal length under the control of the control end 62 of the lens module 6.
The zoom module 5 may be configured to control the control terminal 62 of the lens module 6 and/or the control terminal 11 of the display screen 1 according to the target diopter information, so that the distance between the lens module 6 and the display screen 1 is adjusted to the target distance, as can be understood as follows: the above can form the following three cases, specifically: in the first case, the position of the lens module 6 is fixed, and the position of the display screen 1 is moved. Namely, the zooming module 5 can be used for controlling the control end of the display screen 1 according to the target diopter information, so that the display screen 1 moves until the distance between the display screen 1 and the lens module 6 is adjusted to the target distance; in case two, the position of the lens module 6 is moved, and the position of the display screen 1 is not moved. Namely, the zoom module 5 may be configured to control the control end of the lens module 6 according to the target diopter information, so that the lens module 6 moves until the distance between the display screen 1 and the lens module 6 is adjusted to the target distance; case three, the positions of the lens module 6 and the display screen 1 are all moved. That is, the zoom module 5 may be configured to control the control end of the lens module 6 according to the target diopter information, so that the lens module 6 moves until the distance between the display screen and the lens module 6 is adjusted to the target distance. In the above three cases, the focal length of the focusing functional lens group 61 in the lens module 6 may be set to a focal length corresponding to the target diopter information, that is, may be set to the target focal length, and may also be set to a fixed focal length different from the target focal length instead of the target focal length. The specific setting may be performed according to actual conditions, and is not particularly limited herein.
The zoom function lens group 61 may include at least one multi-focal length lens group 611 or at least one zoom lens 612. The multi-focal length lens group 611 may include two multi-focal length lenses. The zoom lens 612 may refer to a flexible lens that can change a focal length. Since the zoom lens 612 is generally composed of a transparent elastic film (i.e., a lens film), a transparent fluid medium, and the like, the zoom lens 612 may generally be a liquid zoom lens. The liquid zoom lens is in the shape of a cylinder, the upper surface and the lower surface of the liquid zoom lens are formed by two thin glass sheets, the inner side wall of the lens is divided into two layers, one layer is cylindrical, the other layer is in the shape of a circular truncated cone, the upper layer and the lower layer are both formed by metal electrodes, and a layer of insulating material is coated between the two metal electrodes, so that the two metal electrodes are not conductive. Two liquids are filled in a container of the liquid zoom lens, wherein one liquid is electrolyte, and the other liquid is oily non-polar substance. Because of mutual insolubility, the two liquids will naturally form a layer of clear and visible lens film on the contact surface, which has the function of converging light. The zooming principle of the liquid zoom lens is as follows: because the two liquids are not mutually soluble, when no voltage is applied to the liquid zoom lens, a liquid interface naturally forms a layer of symmetrical lens film under the interaction of surface tension, and the focal length of the lens film is fixed. When voltage is applied to the liquid zoom lens, under the action of an electric field, the electric quantity between liquid interfaces changes, so that an external force which enables the original surface tension to be not balanced any more is generated, and the external force is balanced again, so that the curvature radius of a lens film is changed, and the focal length of the liquid zoom lens is further changed. It should be noted that the difference in applied voltage causes the difference in surface tension between the two liquids and between the liquid and the container wall required to achieve a steady state. Based on the above, the radius of curvature of the liquid interface (i.e. the lens film) can be changed by adjusting the applied voltage, thereby changing the focal length of the liquid zoom lens. The above-mentioned adjustment of the focal length by voltage is based on the electrowetting process. In the above process, three contact surfaces are considered in the container, namely, the contact surface between the metal electrode and the electrolyte, the contact surface between the oily non-polar substance and the electrolyte (i.e., the lens film), and the contact surface between the metal electrode and the oily non-polar substance, wherein surface tension exists between the three contact surfaces. Since the contact angle between the lens film and the metal electrode is very small before the external voltage is applied, the shape of the lens film is mainly determined by the three surface tensions, and the electrowetting phenomenon changes the three surface tensions to balance again, thereby controlling the shape of the lens film.
If a voltage is applied to the metal electrode, there is an electrostatic force effect. Since one metal electrode of the liquid zoom lens is in contact with the electrolyte solution, and the other metal electrode is covered with a layer of insulator while being in contact with the electrolyte solution and the oily nonpolar substance. The electrostatic voltage gradually increases the charge on the contact surface between the insulating electrode and the electrolyte, and further increases the surface tension between the oily nonpolar substance and the metal electrode. It is the liquid zoom lens that changes the shape of the lens membrane by an applied voltage. When an external voltage is applied, equal amounts of opposite charges are accumulated on the surfaces of the electrolyte and the electrode, so that an electrostatic force which is mutually attracted is generated between the electrolyte and the electrode, the electrostatic force enables the electrolyte to generate an inward extrusion effect on the oily nonpolar substance, and further the shape of a contact surface (namely a lens film) between two liquids is changed, thereby achieving the purpose of automatic zooming. In order to achieve the desired state of the lens film, the densities of the two liquids are equal for the following reasons: since the liquid has fluidity, the liquid flows from a place with high potential energy to a place with low potential energy under the action of gravity, and if the densities of the two liquids are different, when the orientation of the lens film is different (i.e. the direction of the optical axis of the lens is changed during use), the symmetrical structure of the lens film is broken, and the optical axis of the lens becomes unstable. To avoid this, it is desirable that the densities of the two liquids are equal.
Based on the above, if the lens module 6 includes at least one zoom lens 612, based on the zoom principle of the zoom lens 612, it is required that the zoom module 5 can achieve voltage adjustment, i.e. the zoom module 5 can achieve output of different amplitude voltages. Accordingly, the zoom module 5 may include a pulse width modulation circuit or an automatic gain control circuit. It is to be understood that in the above case, the zoom instruction may be understood as a voltage adjustment instruction.
If the lens module 6 comprises at least one multi-focal length lens group 611, the zoom module 5 can be a motor, i.e. the motor controls the control end 62 of the lens module 6 to move the multi-focal length lens group 611 to achieve the adjustment to the target focal length. It will be appreciated that in the above case, the zoom instruction may refer to a movement instruction. It can be understood that, because the focal length of the lens and the distance between the lens module 6 and the display screen 1 can be finely adjusted in infinite steps, and the number of lenses with different diopter information in the manner of configuring the lens set adopted in the conventional technology is limited, the application range is wider than that in the conventional technology, i.e. the requirements of more users can be met. Meanwhile, the adjustment precision of the head-mounted variable-focus intelligent display device is improved.
It should be noted that the feature image may be used as an identity identifier, the feature image may include an eye image and/or an eye image, and specifically, the feature image may be subjected to face recognition or iris recognition.
it should be noted that, when the feature image is stored in the storage determination module 4, the feature image is stored in the form of user feature information.
It should be noted that, in order to make the display screen 1 display a clear image at the eye position, even though the output end of the zoom module 5 is connected to the control end 61 of the lens module 6, and the output end of the zoom module 5 is also connected to the control end 11 of the display screen 1, except that the zoom module 5 may control the lens module 6 and the display screen 1 according to the target diopter information, the zoom module 5 may only control the lens module 6 according to the target diopter information, and the zoom module 5 may only control the display screen 1 according to the target diopter information. The specific setting may be performed according to actual conditions, and is not particularly limited herein.
the lens module 6 and/or the display screen 1 are/is controlled to be matched with the target diopter information, so that the display screen 1 can display clear images at the eye positions, and the requirements of users with different diopter information are met. In addition, compared to the conventional method of configuring lens groups to satisfy the diopter information requirement, since the lens module 6 is configured to include the zoom function lens group 61, the number of lenses is reduced, and the manufacturing cost of the head-mounted variable focal length device is reduced. Meanwhile, the distance between the lens focal length and the lens module 6 and the display screen 1 can be adjusted in an infinite step mode, so that the adaptive range is wider, the requirement for more diopter information can be met, and correspondingly, the adjustment precision of the head-mounted variable-focus intelligent display device is improved. In addition, the weight of the head-mounted variable-focus intelligent display device is reduced, and the use experience of a user is improved.
according to the technical scheme, the illumination module is used for illuminating the target area, the image acquisition module is used for acquiring the characteristic image of the target area and sending the characteristic image to the storage judgment module, the storage judgment module is used for storing user characteristic information and diopter information matched with the user characteristic information, the received characteristic image is compared with the stored user characteristic information, target diopter information matched with the characteristic image is determined, the target diopter information is sent to the zooming module, and the zooming module is used for controlling the lens module and/or the display screen according to the target diopter information so that the display screen can display clear images at the eye positions. The lens module is arranged to comprise the zooming functional lens group, and the target diopter information is matched by adopting the control lens module and/or the display screen, so that the number of the lenses is reduced, and the manufacturing cost of the head-mounted variable-focus intelligent display device is further reduced. In addition, the focal length of the lens and the distance between the lens module and the display screen can be finely adjusted in an infinite order, so that the application range of the head-mounted variable-focal-length intelligent display device is expanded. Optionally, as shown in fig. 2, on the basis of the above technical solution, the head-mounted variable focus intelligent display device may further specifically include an optometry module 7. The optometry module 7 can be used for detecting diopter information and sending the diopter information to the storage and judgment module 4, and the storage and judgment module 4 can be used for correspondingly storing the diopter information and the characteristic image received from the image acquisition module 3. The output end of the optometry module 7 is connected with the input end of the storage judgment module 4.
in the embodiment of the present invention, as shown in fig. 2, a schematic structural diagram of another head-mounted variable focus intelligent display device is provided. The head-mounted variable-focus intelligent display device can further comprise an optometry module 7, the output end of the optometry module 7 is connected with the input end of the storage judgment module 4, the optometry module 7 can be used for detecting diopter information and sending the diopter information to the storage judgment module 4, and the storage judgment module 4 can be used for correspondingly storing the diopter information and the characteristic image received from the image acquisition module 3. When the feature image is stored in the storage determination module 4, the feature image is stored in the form of user feature information. And obtaining the corresponding relation between the user characteristic information and the diopter information. After the subsequent image acquisition module 3 acquires the characteristic image and sends the characteristic image to the storage judgment module 4, the storage judgment module 4 can obtain the target diopter information corresponding to the characteristic image from the stored corresponding relationship between the user characteristic information and the diopter information.
It should be noted that, when the user uses the head-mounted variable focal length intelligent display device, the feature image acquired by the image acquisition module 3 may be understood as the current feature image. On the basis, the storage and judgment module 4 can obtain the target diopter information corresponding to the current characteristic image from the stored corresponding relationship between the user characteristic information and the diopter information.
Optionally, as shown in fig. 2, on the basis of the above technical solution, the optometry module 7 may further be configured to send diopter information to the zoom module 5, and the zoom module 5 may be configured to control the control end 62 of the lens module 6 according to the diopter information, so as to adjust the zoom function lens group 61 to the target focal length. The output end of the optometry module 7 is also connected with the input end of the zooming module 5.
The utility model discloses an in the embodiment, the output of optometry module 7 can also link to each other with the input of zooming module 5, and optometry module 7 still can be used to detect the diopter information transmission who obtains and to zoom module 5, and module 5 can be used to control end 62 according to diopter information control lens module 6 to make zoom functional lens group 61 adjust to the target focal length.
it can be understood that the diopter information can be determined by the image acquisition module 3 and the storage judgment module 4, can also be determined by the optometry module 7, the image acquisition module 3 and the storage judgment module 4, and can also be determined by the optometry module 7. The following is a detailed description of how to determine diopter information: aiming at the fact that each user uses the head-mounted variable-focal-length intelligent display device for the first time, the optometry module 7 can be used for detecting diopter information, the image acquisition module 3 can be used for acquiring characteristic images of a target area, the optometry module 7 can be used for sending the diopter information to the storage judgment module 4, the image acquisition module 3 can be used for sending the characteristic images to the storage judgment module 4, and the storage judgment module 4 can be used for correspondingly storing the characteristic images and the diopter information. When the feature image is stored in the storage determination module 4, the feature image is stored in the form of user feature information. In this case, the diopter information may be directly sent to the zooming module 5 by the optometry module 7, or may be sent to the zooming module 5 by the storage and determination module 4, and may be specifically set according to an actual situation, which is not specifically limited herein. When the user uses the head-wearing type variable focal length intelligent display device, the diopter information can be determined in the following two ways: in the first mode, the image acquisition module 3 can be used for acquiring a feature image of a target area and sending the feature image to the storage judgment module 4, the storage judgment module 4 compares the received feature image with stored user feature information, determines diopter information matched with the feature image, and sends the target diopter information to the zooming module 5; in the second mode, the optometry module 7 can be used for detecting diopter information and sending the diopter information to the zooming module 5. In short, when the user uses the head-mounted variable focal length smart display device for the first time, since the storage and determination module 4 does not store the corresponding relationship between the user characteristic information and the diopter information of the user, the optometry module 7 may be configured to detect the diopter information and send the diopter information to the storage and determination module 4, and the storage and determination module 4 may store the diopter information in correspondence with the characteristic image received from the image acquisition module 3. When the feature image is stored in the storage determination module 4, the feature image is stored in the form of user feature information. When the head-mounted variable-focal-length intelligent display device is reused by the user subsequently, the optometry module 7 can be omitted, the image acquisition module 3 is used for directly acquiring the characteristic image of the target area and sending the characteristic image to the storage judgment module 4, the storage judgment module 4 compares the received characteristic image with the stored user characteristic information, the diopter information matched with the characteristic image is determined, and the target diopter information is sent to the zooming module 5. Of course, the optometry module 7, the zooming module 5 and the lens module 6 can be directly adopted, the output end of the optometry module 7 is connected with the input end of the zooming module 5, the output end of the zooming module 5 is connected with the control end 62 of the lens module 6, the optometry module 7 can be used for detecting diopter information, the diopter information is sent to the zooming module 5, the zooming module 5 controls the control end 62 of the lens module 6 according to the diopter information, and the zooming functional lens group 61 adjusts the focal length to the target focal length. It should be noted that, the specific manner of determining the diopter information may be set according to the actual situation, and is not limited specifically herein. It should be noted that the diopter information mentioned herein refers to the aforementioned target diopter information.
Illustratively, the head-mounted variable focal length smart display device comprises a display screen, an illumination module 2, an image acquisition module 3, a storage judgment module 4, a zooming module 5, a lens module 6, an optometry module 7 and a control module, wherein the lens module 6 may comprise a zooming functional lens group 61 and a control end 62 of the lens module 6. The output of image acquisition module 3 links to each other with storage judgment module 4's input, storage judgment module 4's output links to each other with the input of module 5 and the input of control module zoom respectively, control module's output links to each other with optometry module 7's control end, optometry module 7's output links to each other with storage judgment module 4's input, module 5's output links to each other with lens module 6's control end 62, and, module 5's output links to each other with display screen 1's control end 11. The image acquisition module 3 may be configured to acquire a feature image of the target area, and send the feature image to the storage determination module 4, and the storage determination module 4 may be configured to send the target diopter information to the zooming module 5 if the target diopter information corresponding to the feature image is found from the stored correspondence between the user feature information and the diopter information. The storage and judgment module 4 can be used for generating an optometry instruction if a target diopter information corresponding to the characteristic image is not found from the corresponding relationship between the stored user characteristic information and the diopter information, and sending the optometry instruction to the optometry module 7 through the control module, the optometry module 7 can be used for detecting the diopter information and sending the diopter information to the storage and judgment module 4, the storage and judgment module 4 correspondingly stores the diopter information and the characteristic image, and it needs to be explained that when the characteristic image is stored to the storage and judgment module 4, the characteristic image is stored in the form of the user characteristic information. And transmits the diopter information as the target diopter information to the zooming module 5. The zoom module 5 controls the lens module 6 and/or the control terminal 11 of the display screen 1 according to the target diopter information, so that the display screen 1 displays a clear image at the eye position.
Optionally, as shown in fig. 3, on the basis of the above technical solution, the head-mounted variable focal length intelligent display device further specifically includes a prompt module 8. The storage and judgment module 4 and/or the optometry module 7 can also be used for sending diopter information to the prompt module 8, and the prompt module 8 can be used for generating a prompt instruction according to the diopter information so that a user can obtain diopter information according to the prompt instruction. The input end of the prompting module 8 is connected with the output end of the storage judging module 4 and/or the output end of the optometry module 7.
in the embodiment of the present invention, as shown in fig. 3, a schematic structural diagram of another head-mounted variable focus intelligent display device is provided. The head-mounted variable focus intelligent display device in fig. 3 may further specifically include a prompt module 8, and an input end of the prompt module 8 may be connected to an output end of the storage and determination module 4 and/or an output end of the optometry module 7. The storage and judgment module 4 or the optometry module 7 can also be used for sending diopter information to the prompt module 8, the prompt module 8 can be used for generating a prompt instruction according to the diopter information, and the prompt instruction is used for indicating a user to acquire diopter information. The prompt module 8 may be a voice prompt. For example, the voice prompter may play a prompt instruction, "you are good, the diopter information of your eyes is xxx, which corresponds to the power being xxx".
optionally, as shown in fig. 3, on the basis of the above technical solution, the head-mounted variable focal length intelligent display device may further specifically include an input module 9. The input module 9 can be used for acquiring diopter information input by a user and sending the diopter information input by the user to the storage and judgment module 4, and the storage and judgment module 4 can be used for correspondingly storing the diopter information input by the user and the characteristic image received from the image acquisition module 3. The output end of the input module 9 is connected with the input end of the storage judgment module 4.
The utility model discloses an in the embodiment, this intelligent display device that focal length was zoomed to wear-type can also include input module 9, and the user can input diopter information through input module 9, and input module 9 can be used to obtain the diopter information of user's input promptly. The input module 9 can send diopter information to the storage and judgment module 4 after acquiring diopter information input by a user, and the storage and judgment module 4 can be used for correspondingly storing the diopter information and the characteristic image received from the image acquisition module 3. When the feature image is stored in the storage determination module 4, the feature image is stored in the form of user feature information. The above provides a way to manually obtain and store diopter information.
In addition, the output end of the input module 9 may also be connected to the input end of the zooming module 5, that is, the input module 9 may be configured to directly send the diopter information to the zooming module 5, so that the zooming module 5 may control the control end 62 of the lens module 6 according to the diopter information, so that the zooming functional lens group 61 adjusts the focal length to the target focal length.
optionally, on the basis of the above technical solution, the feature image may include a face image or an eye image.
In an embodiment of the present invention, the feature image may include a face image or an eye image. Since the feature image is stored in the form of user feature information when the feature image is stored in the storage judging module, if the feature image is a face image, the face image is stored in the form of user face information when the face image is stored in the storage judging module. If the characteristic image is the eye image, the eye image is stored in the form of the eye information of the user when the eye image is stored in the storage judging module.
optionally, on the basis of the above technical solution, the head-mounted variable focal length intelligent display device may further include an eye tracking module, and the illumination module 2 may include an infrared light source. The lighting module 2 may be adapted to emit test light. The image acquisition module 3 may also be configured to acquire an eye tracking image under test light and send the eye tracking image to the eye tracking module. The eye tracking module can be used for tracking the sight of the user according to the eye tracking image to generate a sight tracking result, and executing operation corresponding to the sight tracking result to obtain an operation result.
The embodiment of the utility model provides an in, lighting module 2 can include infrared light source, and infrared light source can be used to launch test light, and image acquisition module 3 can be used to gather eye movement tracking image under test light to with eye movement tracking image transmission to eye movement tracking module, eye movement tracking module can be used to track the formation sight tracking result according to eye movement tracking image to user's sight, and carry out the operation that corresponds with the sight tracking result, obtain the operation result. The operation result described here may be a result desired by the user, that is, an operation result obtained by performing a corresponding operation based on the gaze tracking result is opening the application a by the gaze operation if the user needs to open the application a by the gaze operation at present, which may be regarded as a result desired by the user. Further, the operation result may also be a result that is not desired by the user, that is, if the user needs to open the application a by the gaze operation at present and the operation result obtained by performing the corresponding operation based on the gaze tracking result is the application B opened by the gaze operation, it may be considered that the operation result is not desired by the user. One of the reasons for the above-mentioned errors may be: since the focal lengths of the lenses in the focusing functional lens group 61 in the lens module 6 do not match the diopter information of the user, the user cannot obtain a clear image in order to regard the application program a and actually regard the application program B. To solve the error caused by the above reasons, the above-mentioned method of adjusting the focal length of the lens can be adopted. It should be noted that the test light emitted by the infrared light source may be an infrared light. The electromagnetic wave can be divided into visible light and invisible light according to the wavelength, wherein the visible light is the portion of the electromagnetic spectrum that can be perceived by human eyes, the spectrum of the visible light has no precise range, the wavelength of the electromagnetic wave that can be perceived by the eyes of a user is between 400 nm and 760nm, and the electromagnetic wave that is smaller than or larger than the wavelength of the visible light cannot be observed by the eyes of the user. The infrared light is electromagnetic wave with wavelength between microwave and visible light, and has wavelength of 760nm-1mm, and is invisible light longer than red light. Considering that discomfort is brought to the user when the visible light is used as the photometric light, which is equal to the direct-view light of the eyes of the user, the infrared light emitted by the infrared light source is used as the photometric light, so that discomfort of the user is avoided.
The method for tracking the eye movement can be divided into a two-dimensional image-based eye movement tracking method and a three-dimensional image-based eye movement tracking method. Eye tracking methods based on two-dimensional images may include scleral iris reflex, iridocorneal reflex, pupillary-corneal reflex, and the like. The eye-tracking method based on the three-dimensional image may include a structured-light-based eye-tracking method. It should be noted that the eye tracking module according to the embodiment of the present invention specifically adopts which kind of eye tracking implementation method can be set according to the actual situation, and is not limited herein. In order to better understand the working principle of the eye tracking module, the following further description takes the eye tracking module respectively adopting a pupil-cornea reflection method and a structured light-based eye tracking method as an example, specifically:
For the pupil-cornea reflection method, two different principles are applied to the extraction of the position of the cornea reflection point and the position of the pupil center point. The position of the cornea reflection point is obtained based on the principle that the reflection points of different structures of the eye on infrared light are different, and the series of reflection points are called Purkinje spots. The purkinje spots are formed by forming a plurality of reflection image spots on the front and back surfaces of the eyeball when the light beams are reflected to each membrane of the eyeball, wherein four spots are obvious, namely a first purkinje spot formed on the outer surface of the cornea, a second purkinje spot formed on the inner surface of the cornea, a third purkinje spot formed on the outer surface of the crystalline lens and a fourth purkinje spot formed on the inner surface of the crystalline lens. The corneal reflection point position is determined by the first purkinje spot. This is because, in general, the position of the first purkinje spot formed on the outer surface of the cornea does not change regardless of the rotation of the eye, and therefore, the position of the first purkinje spot can be used as the position of the corneal reflection point to determine the direction of the eye movement. The pupil center position may be determined using a bright pupil and a dark pupil. Specifically, the method comprises the following steps: when the direction of the infrared light source is coaxial with the optical axis of the image acquisition module or is close to the optical axis, light rays are reflected from the retina and captured by the image acquisition module to generate a bright pupil; when the direction of the infrared light source is not coaxial with the optical axis of the image acquisition module, the light is reflected from the retina and captured by the image acquisition module to generate a dark pupil. The image acquisition module here may be a camera. According to the generation principle of the bright pupil and the dark pupil, the pupil in the eyeball image is extracted from the image through tracking the image after difference, then the relative position of the image acquisition module and the eyeball is corrected by adopting a corneal reflection method, the position of the corneal reflection point is taken as the base point of the relative position of the image acquisition module and the eyeball, and the direction of the sight line can be calculated by the position coordinate of the pupil center point relative to the unchanged corneal reflection point (namely, the first Purkinje spot). Based on the above, the cornea-pupil reflex method works as follows: specific implementations of the corneal-pupillary reflex method can be classified into the following two types: firstly, based on the relative position relation of the first purkinje spot and the pupil bright spot; and secondly, based on the relative position relation of the first purkinje spot and the pupil dark spot. With respect to the former, since the position of the infrared light source relative to the eye socket is fixed, and the user's eyeball may be approximately viewed as a sphere, the position of the first purkinje spot relative to the image acquisition module is substantially unchanged. When the eyeballs rotate, the positions of the pupil bright spots are changed, and the positions of the gaze points of the eyeballs can be determined through the change.
It should be noted that, when the eye tracking module adopts the cornea-pupil reflection method, the eye tracking image acquired by the image acquisition module under the test light is an eye image with light spots.
For structured light based eye tracking, the illumination module comprises an infrared light source, wherein the infrared light source may be a structured light source. The structured light source may include a point structured light source, a line structured light source, a multi-line structured light source, a surface structured light source, and the like. The following description is made by taking a light source as a structural light source and an image acquisition module as a camera as an example, and the working principle of the eye movement tracking method based on the structural light is adopted for the eye movement tracking module, specifically:
The structured light source projects modulated structured light to the face of the user, and the camera acquires a structured light image of the face of the user. The modulated structured light may be divided into point structured light projected by a point structured light source, line structured light projected by a line structured light source, multi-line structured light projected by a multi-line structured light source, surface structured light projected by a surface structured light source, and the like. The modulated structured light is further described as the line-structured light projected by the line-structured light source. The line structured light source is obtained by converting a point light source generated by a laser through a lens, and accordingly, it can be understood that the line structured light is an extension of the point structured light. The basic principle of the line structured light method is as follows: the line structure light source projects line structure light to the face of a user, a light bar which changes along with the change of the face shape of the user is formed on the surface of the face of the user, when the light bar is embodied in an image, the light bar is distorted and discontinuous, the degree of distortion is related to the depth of the surface of the face of the user, and is also related to the relative position between the line structure light source and the camera, and the discontinuity displays the physical gap of the surface of the face of the user. And analyzing the acquired distorted light bar image information to determine the three-dimensional coordinates of the face surface of the user. It should be noted that, because the amount of information acquired based on the line structured light method is greatly increased compared to that based on the point structured light method, and the complexity of the system is not increased, not only the speed of data acquisition is increased, but also higher measurement accuracy can be obtained. It should be noted that as the depth of the face surface of the user increases, the degree of distortion of the light bar increases. In addition, it should be noted that the depth of the face surface of the user refers to the depth between the face surface of the user and the set reference plane. Accordingly, in order to acquire the structured light image of the face of the user, the following method can be adopted: the line structured light source projects line structured light to the face of the user to form a light bar on the surface of the face of the user. The camera acquires the light bar and generates a structured light image of the face of the user according to the light bar. And generating a three-dimensional model according to the structured light image, and determining eye characteristic parameters of the user according to the three-dimensional model, wherein the eye characteristic parameters can comprise pupil center coordinates or iris center coordinates. And determining the fixation point of the user according to the eye characteristic parameters of the user. And tracking the sight according to the fixation point of the user to generate a sight tracking result, and executing operation corresponding to the sight tracking result to obtain an operation result.
generating a three-dimensional model from the structured-light image can be understood as follows: the method comprises the steps of processing a structured light image based on an image preprocessing algorithm to obtain a processed structured light image, demodulating offset information corresponding to a distortion position in the processed structured light image, converting the offset information into depth information, and generating a three-dimensional model according to the depth information. The image pre-processing algorithm may include at least one of image filtering, image enhancement, or image segmentation. This is because the distortion degree can be understood as the corresponding offset information at the distortion position, i.e. the greater the distortion degree, the greater the offset value represented by the offset information. And because the distortion degree is related to the depth of the surface of the user eye, the offset information can be converted into depth information, so that the three-dimensional coordinates of the surface of the user eye can be determined, the three-dimensional reconstruction is carried out on the surface of the user eye, and a three-dimensional model of the user eye can be obtained.
According to the eye feature parameters of the user, the gaze point of the user is determined, which can be understood as follows: and inputting the eye characteristic parameters into the sight line mapping model to obtain target coordinates corresponding to the eye characteristic parameters. And determining the fixation point of the user according to the target coordinates. The sight line mapping model is a model representing the mapping relation between the eye characteristic parameters and the target coordinates. The line of sight mapping model may be generated based on neural network model training. And can also be constructed based on higher order polynomials.
It is understood that when the eye tracking module adopts the structured light based eye tracking method, the eye tracking image collected by the image collection module (such as a camera) under the test light is the structured light image of the face of the user.
It will also be appreciated that the user may determine whether the lens focal length needs to be adjusted based on the results of the eye tracking module based operation.
As shown in fig. 4, a schematic structural diagram of a head-mounted variable focal length smart display device configured with a multi-focal length lens group is provided. The lighting module 2 in fig. 4 (not shown in fig. 4) comprises an infrared light source 20, the infrared light source 20 being arranged at the surface of the body.
It should be noted that the display screen 1, the illumination module 2, the image acquisition module 3, the storage and judgment module 4, the zoom module 5, the lens module 6, the optometry module 7, the prompt module 8, the input module 9, and the eye tracking module may all be disposed on a body of the head-mounted variable focal length intelligent display device, wherein the display screen 1, the illumination module 2, and the image acquisition module 3 may be disposed on a surface of the body.
Example two
Fig. 5 is a schematic structural diagram of a head-mounted variable focal length intelligent display device according to an embodiment of the present invention, and on the basis of the above embodiment, the zoom module 5 is used to control the lens module 6 and/or the display screen 1 according to the target diopter information, so that the display screen 1 displays a clear image at the eye position, specifically including: the zoom module 5 is used for controlling the control end 62 of the lens module 6 according to the target diopter information, so that the zoom function lens group 61 is adjusted to the target focal length. And/or the zoom module 5 is used for controlling the control end 62 of the lens module 6 and/or the control end 11 of the display screen 1 according to the target diopter information, so that the distance between the lens module 6 and the display screen 1 is adjusted to the target distance.
The embodiment of the utility model provides an in, according to the foregoing can know, the mode of the distance between accessible adjusting lens focus and/or adjusting lens module 6 and the display screen 1 realizes and target diopter information phase-match, and then makes display screen 1 show clear image in the eye position. Wherein, can adjust the lens focus through following mode, it is specific: the zoom module 5 may be configured to control the control end of the lens module 6 according to the target diopter information, so that the zoom function lens group 61 is adjusted to the target focal length. The target focal length is understood to be a focal length that matches the target diopter information. The distance between the lens module 6 and the display screen 1 can be adjusted in the following way, in particular: the zoom module 5 may be configured to control the control terminal 61 of the lens module 6 according to the target diopter information, and/or the zoom module 5 may be configured to control the control terminal 11 of the display screen 1 according to the target diopter information, so that the distance between the lens module 6 and the display screen 1 is adjusted to the target distance.
based on the above, in order to realize that the display screen 1 displays a clear image at the eye position, several specific modes can be formed as follows: in the first mode, the zooming module 5 can be used to control the control end 61 of the lens module 6 according to the target diopter information, so that the zooming function lens group 61 is adjusted to the target focal length; in the second mode, the zooming module 5 can be used for controlling the control end 11 of the display screen 1 according to the target diopter information so as to adjust the distance between the lens module 6 and the display screen 1 to a target distance; in the third mode, the zoom module 5 may be configured to control the control end 62 of the lens module 6 according to the target diopter information, so that the distance between the lens module 6 and the display screen 1 is adjusted to the target distance; in the fourth mode, the zoom module 5 may be configured to control the control end 62 of the lens module 6 and the control end 11 of the display screen 1 according to the target diopter information, so that the distance between the lens module 6 and the display screen 1 is adjusted to the target distance; in a fifth mode, the zoom module 5 may be configured to control the control end 62 of the lens module 6 according to the target diopter information, so as to adjust the zoom function lens group 61 to the target focal length, and so as to adjust the distance between the lens module 6 and the display screen 1 to the target distance; sixth, the zoom module 5 may be configured to control the control end 62 of the lens module 6 and the control end 11 of the display screen 1 according to the target diopter information, so as to adjust the zoom function lens group 61 to the target focal length, and so as to adjust the distance between the lens module 6 and the display screen 1 to the target distance.
It should be noted that the target focal length in the fifth mode may have a different value from the target focal lengths in the first mode and the sixth mode, and the target distance in the fifth mode may also have a different value from the target distances in the second mode, the third mode, the fourth mode, and the sixth mode. Similarly, the target focal length in mode six may have a different value than the target focal length in mode one and mode five, and the target distance in mode six may also have a different value than the target distance in mode two, mode three, mode four and mode five. The specific setting may be performed according to actual conditions, and is not particularly limited herein.
For a better understanding of the above-described modes two to four, a more detailed description is given below. Specifically, the method comprises the following steps: the initial distance between the lens module 6 and the display screen 1 is d0the target distance corresponding to the target diopter information is d1。
As shown in fig. 6, a schematic diagram of adjusting the distance between the lens module and the display screen is given. The variable focal length head mounted smart display device of fig. 6 is a side view of the variable focal length head mounted smart display device. The upper diagram in fig. 6 is to adjust the distance between the front lens module 6 and the display screen 1 to the initial distance d0Schematic representation of (a). As can be seen from the above figure, the image displayed on the display screen 1 at the eye position is unclear. The lower diagram in FIG. 6 is to adjust the distance between the lens module 6 and the display screen 1 to the target distance d1Schematic representation of (a). As can be seen from the following figures, the position of the display screen 1 is moved, and the position of the lens module 6 is not moved, so that the distance between the lens module 6 and the display screen 1 is changed from the initial distance d0adjusting to a target distance d1. Namely, the zoom module 5 (not shown in fig. 6) controls the control terminal 11 (not shown in fig. 6) of the display screen 1 according to the target diopter information, so that the display screen 1 moves until the distance between the lens module 6 and the display screen 1 is changed from the initial distance d0Adjusting to a target distance d1. As can be seen from the following figures, the display screen 1 can display a clear image at the eye position. This is the second method described above.
As shown in fig. 7, another schematic diagram for adjusting the distance between the lens module and the display screen is provided.The variable focal length head mounted smart display device of fig. 7 is a side view of the variable focal length head mounted smart display device. The upper diagram in fig. 7 is to adjust the distance between the front lens module 6 and the display screen 1 to the initial distance d0Schematic representation of (a). As can be seen from the above figure, the image displayed on the display screen 1 at the eye position is unclear. The lower diagram in FIG. 7 is to adjust the distance between the lens module 6 and the display screen 1 to the target distance d1Schematic representation of (a). As can be seen from the following figures, the position of the display screen 1 is fixed, and the position of the lens module 6 is moved, so that the distance between the lens module 6 and the display screen 1 is changed from the initial distance d0Adjusting to a target distance d1. That is, the zoom module 5 (not shown in fig. 7) controls the control end 62 (not shown in fig. 7) of the lens module 6 according to the target diopter information, so that the lens module 6 moves until the distance between the lens module 6 and the display screen 1 is changed from the initial distance d0Adjusting to a target distance d1. As can be seen from the following figures, the display screen 1 can display a clear image at the eye position. This is the third mode described above.
As shown in fig. 8, a schematic diagram of another method for adjusting the distance between the lens module and the display screen is shown. The variable focal length head mounted smart display device of fig. 8 is a side view of the variable focal length head mounted smart display device. The upper diagram in fig. 8 is to adjust the distance between the front lens module 6 and the display screen 1 to the initial distance d0Schematic representation of (a). As can be seen from the above figure, the image displayed on the display screen 1 at the eye position is unclear. The lower diagram in FIG. 8 is to adjust the distance between the lens module 6 and the display screen 1 to the target distance d1Schematic representation of (a). As can be seen from the following figures, the position of the display screen 1 is moved and the position of the lens module 6 is moved, so that the distance between the lens module 6 and the display screen 1 is changed from the initial distance d0adjusting to a target distance d1. Namely, the zoom module 5 (not shown in fig. 8) controls the control terminal 62 (not shown in fig. 8) of the lens module 6 according to the target diopter information, and controls the control terminal 11 (not shown in fig. 8) of the display screen 1 to move the lens module 6 until the distance between the lens module 6 and the display screen 1 is changed from the initial distance d0Adjusting to a target distance d1. As can be seen from the following figures, the display screen 1 can display a clear image at the eye position. This is the fourth mode described above.
It should be noted that, in practical applications, it is difficult for the left and right eyes of a person to achieve the same diopter, so the smart display device is usually provided with two display screens corresponding to the left eye and the right eye of the user. Therefore, the control method of the second mode and the fourth mode may also be that the display screen 1 ' and the display screen 1 ″ are respectively controlled to move according to different target diopter information of the left eye and the right eye, wherein the display screen 1 ' and the display screen 1 ″ respectively correspond to the left eye and the right eye of the user until the display screen 1 ' and the display screen 1 ″ can respectively display clear images at the positions of the left eye and the right eye, so as to meet the requirements of the user with different diopters of the left eye and the right eye.
Above-mentioned because the accessible adjustment lens focal length realizes and target diopter information phase-match and/or realizes and target diopter information phase-match through the distance between adjustment lens module 6 and the display screen 1, consequently, realized that display screen 1 can show clear image in eye position, satisfied different diopter information user's demand. In addition, compared with the conventional method for configuring the lens groups to satisfy the diopter information requirement, the lens module 6 is configured to include the zoom function lens group 61, and the method for adjusting the focal length of the lens is adopted to match the target diopter information, so that the number of lenses is reduced, and the manufacturing cost of the head-mounted variable focal length device is reduced. Meanwhile, the distance between the lens focal length and the lens module 6 and the distance between the lens module and the display screen 1 can be adjusted in an infinite mode, so that the adaptive range is wider, the requirements of users with more diopter information can be met, and correspondingly, the adjustment precision of the head-mounted variable-focus intelligent display device is improved. In addition, the weight of the head-mounted variable-focus intelligent display device is reduced, and the use experience of a user is improved.
According to the technical scheme of the embodiment, the lens module is arranged to comprise the zoom function lens group, and the target diopter information is matched in a mode of adjusting the focal length of the lens, so that the number of the lenses is reduced, and the manufacturing cost of the head-mounted variable focal length device is reduced. Meanwhile, the distance between the lens focal length and the lens module and the distance between the lens module and the display screen can be finely adjusted in an infinite order, so that the application range is wider, the requirements of users with more diopter information can be met, and correspondingly, the adjustment precision of the head-mounted variable-focus intelligent display device is also improved. In addition, the weight of the head-mounted variable-focus intelligent display device is reduced, and the use experience of a user is improved.
EXAMPLE III
fig. 9 is a schematic structural diagram of a head-mounted variable-focus intelligent display device according to a third embodiment of the present invention, and on the basis of the third embodiment of the present invention, the zoom functional lens group 61 may include at least one multi-focus lens group 611, and the multi-focus lens group may include two multi-focus lenses 6111 (only one is shown in fig. 9). The zoom module 5 may be configured to control the control end 62 of the lens module 6 according to the target diopter information, so that the multi-focal-length lens group 611 adjusts the focal length to the target focal length.
In the embodiment of the present invention, it should be noted that the multi-focal length lens group 611 described herein may include two multi-focal length lenses 6111, which means that two multi-focal length lenses 6111 correspond to each eye portion.
The zoom module 5 may be configured to control the control end 62 of the lens module 6 according to the target diopter information, so that the multi-focal-length lens group 611 adjusts the focal length to the target focal length, as can be understood as follows: the zoom module 5 may generate a movement instruction according to the target diopter information and send the movement instruction to the control end 62 of the lens module 6, so as to move the multi-focal-length lens group 611 to adjust the focal length to the target focal length. The movement instruction may include a movement distance and a movement direction. The moving distance may be a distance that the multi-focus lens group 611 needs to move from the current position to the target position. The moving direction may refer to a direction in which the multi-focal-length lens group 611 moves on a moving plane, which is perpendicular to the user's line of sight, the moving plane being located on the head-mounted variable focal length intelligent display device. It should be noted that the current position of the multi-focal-length lens group 611 can be stored in the zoom module 5 in advance, and the head-mounted variable-focal-length smart display device determines the current position of the multi-focal-length lens group 611 after being started. It should be noted that each multi-focus lens group 611 has a movement command corresponding thereto, and further, each multi-focus lens 6111 has a movement command corresponding thereto. In other words, a movement instruction for each multi-focus lens 6111 will be generated.
Based on the above, it can be understood that the zoom module 5 can determine the moving distance and the moving direction of the multi-focal-length lens group 611 according to the target diopter information, and then, under the control of the control end 62 of the lens module 6, the multi-focal-length lens group 611 is moved by the moving distance from the current position of the multi-focal-length lens group 611 along the moving direction under the control of the control end 62 of the lens module 6, so as to reach the target position, and the focal length adjustment is completed. It should be noted that, for a certain multi-focus lens 6111, the movement distance included in the movement instruction may be zero, that is, the multi-focus lens does not move.
For the two multi-focal-length lenses 6111 corresponding to each eye part, the zoom module 5 generates a movement instruction according to the diopter of the user, and sends the movement instruction to the control end 62 of the lens module 6, so that each multi-focal-length lens 6111 moves to adjust the focal length to the target focal length, which can be understood as follows: the zoom module 5 generates a movement instruction according to the target diopter information, and sends the movement instruction to the control end 62 of the lens module 6, under the control of the control end 62 of the lens module 6, the multi-focal-length lenses 6111 move relatively, and the focal length is adjusted to the target focal length by the relative movement of the multi-focal-length lenses 6111. It is understood that the relative movement can be formed by one multi-focus lens 6111 not moving and the other multi-focus lens 6111 moving. In this case, the movement distance corresponding to the multi-focus lens 6111 that does not move is zero. In addition, if the moving distance corresponding to each multi-focus lens 6111 is not zero, the moving directions of each multi-focus lens 6111 are not the same, that is, the moving directions of the two multi-focus lenses 6111 are opposite.
Alternatively, as shown in fig. 10, on the basis of the above technical solution, the zoom module 5 (not shown in fig. 6) may include a motor 51.
in the embodiment of the present invention, as shown in fig. 10, a schematic structural diagram of a head-mounted variable focal length intelligent display device configured with a multi-focal length lens group is provided. The zoom module of fig. 10 may include a motor 51, and accordingly, an output of the storage determination module 4 (not shown in fig. 10) is connected to an input of the motor 51, and an output of the motor 51 is connected to a control terminal 62 of the lens module 6 (not shown in fig. 10). The motor 51 is a rotating mechanism for converting electrical energy into mechanical energy, and may include a motor body and a motor assembly, wherein the motor body may refer to a motor housing, the motor assembly may include a stator, a rotor, and the like, wherein the rotor may include a rotating shaft, the motor assembly is disposed in the motor body, and at least one end of the rotating shaft in the motor assembly may extend out of the motor body to form an extension portion. Accordingly, the control end 62 of the lens module 6 may be located on an extension formed by the rotational axis.
the motor 51 can be used to control the control end 62 of the lens module 6 according to the target diopter information, so that each multi-focal-length lens 6111 can be adjusted to the target focal length. The above can be understood as follows: the motor 51 may generate a movement instruction according to the target diopter information, and send the movement instruction to the control end 62 of the lens module 6, so that each multi-focal-length lens 6111 moves under the control of the control end 62 of the lens module 6, thereby adjusting the focal length to the target focal length. As described above, the movement instruction may include the movement distance and the movement direction corresponding to each multi-focus lens 6111. The movement distance may refer to a distance that the multi-focus lens 6111 needs to move from the current position to the target position. The moving direction may refer to a direction in which the multi-focal-length lens 6111 moves on a moving plane, the moving plane is perpendicular to the line of sight of the user, and the moving plane is located on the head-mounted variable focal length intelligent display device. The motor 51, which will be reflected by the above moving distance and moving direction, drives the multi-focus lens 6111 to move through the control end 62 of the lens module 6. The motor 51 forms current in the rotor under the action of the applied voltage, the rotor is acted by electromagnetic force in the rotating magnetic field generated by the stator to do cutting magnetic induction line motion to generate electromagnetic torque, when a mechanical load is arranged on a rotating shaft in the motor assembly, the load torque is output, and the mechanical load moves under the driving of the output load torque. To the technical scheme that the embodiment of the utility model provides, the mechanical load that sets up in motor element's the axis of rotation can do as follows: since the control end 62 of the lens module 6 is arranged on an extension formed by the rotation shaft in the motor assembly, the mechanical load is the lens module 6. Accordingly, the multi-focus lens 6111 will move under the driving of the output load torque.
It can be understood that the process of adjusting the focal length is completed by moving the multi-focus lens 6111 from the current position of the multi-focus lens 6111 by the moving distance in the moving direction under the control of the motor 51 through the control end 62 of the lens module 6 to reach the target position.
It should be noted that each eye portion in fig. 10 corresponds to two multi-focus lenses 6111, and if the moving distances corresponding to the two multi-focus lenses 6111 are not zero, the moving directions of the two multi-focus lenses 6111 are opposite.
Optionally, as shown in fig. 11, on the basis of the above technical solution, the head-mounted variable focus intelligent display device may further specifically include an adjusting knob 10. The multi-focal-length lens group 611 (not shown in fig. 11) is controlled to move by the adjustment knob 10 to adjust to the target focal length. The output of the adjustment knob 10 is connected to the control terminal 62 of the lens module 6.
In the embodiment of the present invention, as shown in fig. 11, a schematic structural diagram of another head-mounted variable focal length intelligent display device configured with a multi-focal length lens group is provided. The head-mounted variable focal length smart display device in fig. 11 includes an adjusting knob 10 and a multi-focal length lens 6111 included in the multi-focal length lens group 611, and when the user wears the head-mounted variable focal length smart display device, the adjusting knob 10 can be adjusted to control the multi-focal length lens 6111 (i.e., control the multi-focal length lens group 611) to move relatively, so as to adjust the focal length to the target focal length. The adjusting knob 10 can be provided with corresponding scale marks for measuring the adjusting range, which is beneficial for the user to recognize and memorize the diopter used each time. The above gives a way to adjust the focal length manually.
In addition, as shown in fig. 12, a schematic structural diagram of still another head-mounted variable focal length smart display device configured with a multi-focal length lens group is given. The practical display effect of the head-mounted variable focus intelligent display device can be seen from fig. 12.
According to the technical scheme, the lens module is arranged to comprise the zooming functional lens group, the zooming lens group comprises at least one multi-focal-length lens group, the multi-focal-length lens group comprises two multi-focal-length lenses, and the matching of the target diopter information is achieved by adjusting the focal length of the lenses, so that the number of the lenses is reduced, and the manufacturing cost of the head-mounted variable-focal-length intelligent display device is reduced. In addition, the focal length of the lens can be finely adjusted in an infinite order, so that the application range of the head-mounted variable-focus intelligent display device is expanded.
optionally, on the basis of the above technical solution, the surfaces of the multi-focal-length lenses 6111 in the multi-focal-length lens group 611 are all provided with infrared cut-off film layers, or the surfaces of the multi-focal-length lenses 6111 in the multi-focal-length lens group 611 are all provided with infrared absorption film layers.
Optionally, on the basis of the above technical solution, an infrared cut-off film layer is disposed on one side of each multi-focal-length lens 6111 in the multi-focal-length lens group 611, or an infrared absorption film layer is disposed on one side of each multi-focal-length lens 6111 in the multi-focal-length lens group 611.
the utility model discloses an in the embodiment, above-mentioned infrared characteristic image's that can improve image acquisition module and gather image accuracy by rete and infrared absorption rete.
Example four
fig. 13 is a schematic structural diagram of a head-mounted variable focal length intelligent display device according to a fourth embodiment of the present invention, and on the basis of the fourth embodiment of the present invention, the zoom function lens group 61 may include at least one zoom lens 612. The zoom module 5 may be configured to control the control end 62 of the lens module 6 according to the target diopter information, so that the zoom lens 612 is adjusted to the target focal length.
In the embodiment of the present invention, it can be known from the foregoing that, if the zoom function lens set 61 includes at least one zoom lens 612, based on the zoom principle of the zoom lens, the zoom module 5 is required to implement voltage adjustment, that is, the zoom module 5 is required to implement outputting different amplitude voltages. Based on the above, the zoom module 5 can be used to control the control end 62 of the lens module 6 according to the target diopter information, so as to adjust the zoom lens 612 to the target focal length, as can be understood as follows: the zoom module 5 generates a voltage adjustment instruction according to the target diopter information, and sends the voltage adjustment instruction to the control end 62 of the lens module 6, so that the zoom lens 612 adjusts the focal length to the target focal length under the control of the control end 62 of the lens module 6. More specifically: the zoom module 5 obtains a corresponding amplitude voltage according to the target diopter information, and sends the amplitude voltage corresponding to the target diopter information to the control end 62 of the lens module 6, so that the zoom lens 612 adjusts the focal length to the target focal length under the control of the control end 62 of the lens module 6. The zoom module 5 may include a pulse width modulation circuit and an automatic gain control circuit.
the pulse width modulation is an analog control mode, which modulates the bias of a transistor base or a field effect transistor grid according to the change of corresponding load to change the conduction time of the transistor or the field effect transistor, thereby realizing the change of the output of the switching voltage-stabilized power supply. The automatic gain control circuit is generally designed to reduce the level change of an output signal caused by the level change of an input signal.
Optionally, on the basis of the above technical solution, the zoom module 5 may include a pulse width modulation circuit or an automatic gain control circuit.
the embodiment of the present invention provides an embodiment, the zooming module 5 can include a pulse width modulation circuit or an automatic gain control circuit, both of which can generate corresponding amplitude voltage according to the target diopter information. If the zoom module 5 includes a pulse width modulation circuit, the zoom module 5 can be used to control the control terminal 62 of the lens module 6 according to the target diopter information, so as to adjust the zoom lens 612 to the target focal length, as can be understood as follows: the pulse width modulation circuit controls the control terminal 62 of the lens module 6 according to the target diopter information to adjust the zoom lens 612 to the target focal length. Further, the pwm circuit controls the control terminal 62 of the lens module 6 according to the user's target diopter information, so as to adjust the zoom lens 612 to the target focal length, as can be understood as follows: the pulse width modulation circuit generates a voltage adjustment instruction according to the target diopter information, and sends the voltage adjustment instruction to the control terminal 62 of the lens module 6, so that the zoom lens 612 adjusts the focal length to the target focal length under the control of the control terminal 62 of the lens module 6. If the zoom module 5 includes an automatic gain control circuit, the zoom module 5 can be used to control the control terminal 62 of the lens module 6 according to the target diopter information, so as to adjust the zoom lens 612 to the target focal length, as can be understood as follows: the automatic gain control circuit controls the control terminal 62 of the lens module 6 according to the target diopter information to adjust the zoom lens 612 to the target focal length. Further, the automatic gain control circuit controls the control terminal 62 of the lens module 6 according to the target diopter information to adjust the zoom lens 612 to the target focal length, as can be understood as follows: the agc circuit generates a voltage adjustment command according to the target diopter information, and sends the voltage adjustment command to the control terminal 62 of the lens module 6, so that the zoom lens 612 adjusts the focal length to the target focal length under the control of the control terminal 62 of the lens module 6. The pulse width modulation circuit specifically realizes the output of voltages with different amplitudes by adjusting the pulse width duty ratio. The automatic gain control end circuit particularly realizes the output of voltages with different amplitudes by changing the input-output compression ratio. Which circuit is used as the zoom module 5 may be determined according to actual conditions, and is not particularly limited herein.
According to the technical scheme, the lens module is arranged to comprise the zooming functional lens group, the zooming lens group comprises at least one zooming lens, and the target diopter information is matched in a mode of adjusting the focal length of the lens, so that the number of the lenses is reduced, and the manufacturing cost of the head-mounted variable-focal-length intelligent display device is further reduced. In addition, the focal length of the lens can be finely adjusted in an infinite order, so that the application range of the head-mounted variable-focus intelligent display device is expanded.
Optionally, on the basis of the foregoing technical solution, the surfaces of the zoom lens 612 are all provided with infrared cut-off film layers, or the surfaces of the zoom lens 612 are all provided with infrared absorption film layers.
optionally, on the basis of the foregoing technical solution, an infrared cut film layer is disposed on each side of the zoom lens 612, or an infrared absorption film layer is disposed on each side of the zoom lens 612.
The utility model discloses an in the embodiment, above-mentioned infrared characteristic image's that can improve image acquisition module and gather image accuracy by rete and infrared absorption rete.
It should be noted that the display screen 1, the illumination module 2, the image capturing module 3, the storage and judgment module 4, the zooming module 5, the lens module 6 (the zooming functional lens group 61 and the control end 62), the zooming functional lens group 61 including at least one multi-focal-length lens group 611, the multi-focal-length lens group 611 including two multi-focal-length lenses 6111, the zooming functional lens group 61 including at least one zooming lens 612, the optometry module 7, the prompt module 8, the input module 9, the adjusting knob 10 and the infrared light source 20 are shown in the same meaning in different drawings.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims (13)

1. The utility model provides a variable focal length's of wear intelligent display device, includes the display screen, its characterized in that still includes: the device comprises an illumination module, an image acquisition module, a storage judgment module, a zooming module and a lens module; the lens module comprises a zoom function lens group and a control end;
The illumination module is used for illuminating a target area;
The image acquisition module is used for acquiring a characteristic image of the target area and sending the characteristic image to the storage judgment module;
The storage judging module is used for storing user characteristic information and diopter information matched with the user characteristic information, comparing the received characteristic image with the stored user characteristic information, determining target diopter information matched with the characteristic image and sending the target diopter information to the zooming module;
The zoom module is used for controlling the lens module and/or the display screen according to the target diopter information so as to enable the display screen to display a clear image at the eye position;
the output end of the image acquisition module is connected with the input end of the storage judgment module, the output end of the storage judgment module is connected with the input end of the zooming module, and the output end of the zooming module is connected with the control end of the lens module and/or the control end of the display screen.
2. The head-mounted variable focus smart display device of claim 1, wherein the zoom module is configured to control the lens module and/or the display screen according to the target diopter information, so that the display screen displays a clear image at the eye position, comprising:
The zooming module is used for controlling the control end of the lens module according to the target diopter information so as to adjust the zooming functional lens group to a target focal length; and/or
The zoom module is used for controlling the control end of the lens module and/or the control end of the display screen according to the target diopter information so as to adjust the distance between the lens module and the display screen to a target distance.
3. A head-mounted variable focus smart display device as recited in claim 2, wherein said zoom function lens group comprises at least one multi-focal lens group, said multi-focal lens group comprising two multi-focal lenses;
The zooming module is used for controlling the control end of the lens module according to the target diopter information so as to adjust the multi-focal-length lens group to a target focal length.
4. The head-mounted variable focus smart display device of claim 3, wherein the zoom module comprises a motor.
5. the variable focus head mounted intelligent display device of claim 3, further comprising an adjustment knob;
The multi-focal-length lens group is controlled to move by adjusting the adjusting knob so as to adjust to a target focal length;
The output end of the adjusting knob is connected with the control end of the lens module.
6. a head-mounted variable focus smart display device as recited in claim 2, wherein said zoom function lens group comprises at least one zoom lens;
The zoom module is used for controlling the control end of the lens module according to the target diopter information so as to adjust the zoom lens to a target focal length.
7. The head mounted variable focus smart display device of claim 6, wherein the zoom module comprises a pulse width modulation circuit or an automatic gain control circuit.
8. the head-mounted variable focus smart display device of claim 2, further comprising an optometry module;
The optometry module is used for detecting diopter information and sending the diopter information to the storage judgment module, and the storage judgment module is used for correspondingly storing the diopter information and the characteristic image received from the image acquisition module;
And the output end of the optometry module is connected with the input end of the storage judgment module.
9. The head-mounted variable focal length smart display device of claim 8, wherein the optometry module is further configured to send the diopter information to the zooming module, and the zooming module is configured to control the control end of the lens module according to the diopter information, so that the zooming functional lens group is adjusted to a target focal length;
The output end of the optometry module is also connected with the input end of the zooming module.
10. The head-mounted variable focus intelligent display device according to claim 8 or 9, further comprising a prompt module;
The storage judging module or the optometry module is further used for sending the diopter information to the prompting module, and the prompting module is used for generating a prompting instruction according to the diopter information so that a user can obtain the diopter information according to the prompting instruction;
The input end of the prompting module is connected with the output end of the storage judging module and/or the output end of the optometry module.
11. A head-mounted variable focus smart display device as recited in any of claims 1-9, further comprising an input module;
The input module is used for acquiring diopter information input by a user and sending the diopter information input by the user to the storage judging module, and the storage judging module is also used for correspondingly storing the diopter information input by the user and the characteristic image received from the image acquisition module;
the output end of the input module is connected with the input end of the storage judging module.
12. A head-mounted variable focus intelligent display device as recited in any of claims 1-9, wherein said characteristic image comprises a facial image or an eye image.
13. A head-mounted variable focus smart display device as recited in any of claims 1-9, further comprising an eye tracking module, said illumination module comprising an infrared light source;
The illumination module is used for emitting photometric rays;
The image acquisition module is further used for acquiring an eye movement tracking image under the photometric light and sending the eye movement tracking image to the eye movement tracking module;
The eye movement tracking module is used for tracking the sight of the user according to the eye movement tracking image to generate a sight tracking result, and executing operation corresponding to the sight tracking result to obtain an operation result.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113031278A (en) * 2021-04-08 2021-06-25 恒玄科技(上海)股份有限公司 Intelligent display device
CN113359270A (en) * 2021-05-25 2021-09-07 歌尔股份有限公司 Diopter adjusting method and diopter adjusting system of head-mounted equipment
CN113376868A (en) * 2021-06-18 2021-09-10 中国工商银行股份有限公司 Intelligent glasses

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113031278A (en) * 2021-04-08 2021-06-25 恒玄科技(上海)股份有限公司 Intelligent display device
CN113031278B (en) * 2021-04-08 2023-08-25 恒玄科技(上海)股份有限公司 Intelligent display equipment
CN113359270A (en) * 2021-05-25 2021-09-07 歌尔股份有限公司 Diopter adjusting method and diopter adjusting system of head-mounted equipment
CN113359270B (en) * 2021-05-25 2023-06-09 歌尔股份有限公司 Diopter adjustment method and diopter adjustment system of head-mounted equipment
CN113376868A (en) * 2021-06-18 2021-09-10 中国工商银行股份有限公司 Intelligent glasses

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Patentee before: Beijing seven Xin Yi Wei Technology Co., Ltd.

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