CN111965781A - VR lens barrel focal length electric adjustment control method, system and device - Google Patents
VR lens barrel focal length electric adjustment control method, system and device Download PDFInfo
- Publication number
- CN111965781A CN111965781A CN202010889444.0A CN202010889444A CN111965781A CN 111965781 A CN111965781 A CN 111965781A CN 202010889444 A CN202010889444 A CN 202010889444A CN 111965781 A CN111965781 A CN 111965781A
- Authority
- CN
- China
- Prior art keywords
- focal length
- scale
- resolution
- video
- motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/09—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted for automatic focusing or varying magnification
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0172—Head mounted characterised by optical features
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/28—Systems for automatic generation of focusing signals
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Rehabilitation Tools (AREA)
- Eye Examination Apparatus (AREA)
- Lens Barrels (AREA)
Abstract
The invention provides an electric adjustment control method, system and device for a VR (virtual reality) lens cone focal length, and belongs to the field of VR equipment. The electric regulation control method comprises the following steps: acquiring the degree of myopia; outputting a control signal according to the myopia degree to control the motor to adjust the VR lens barrel focal length for the first time, so that the VR lens barrel focal length meets the myopia degree of a user; acquiring the resolution of a video to be watched; and outputting a control signal according to the resolution of the video to be watched to control the motor to adjust the focal length of the VR lens barrel for the second time, so that the focal length of the VR lens barrel is matched with the resolution of the video to be watched. The electric regulation control system includes: the device comprises a myopia degree acquisition unit, a first adjusting unit, a resolution acquisition unit and a second adjusting unit. On the basis of carrying out VR lens cone focusing according to the myopia number degree at present, increase and carry out further VR lens cone focusing according to the resolution ratio of video to make the user can watch more clear video.
Description
Technical Field
The invention relates to the field of VR equipment, in particular to an electric adjustment control method for a VR lens barrel focal length, an electric adjustment control system for the VR lens barrel focal length and an electric adjustment control device for the VR lens barrel focal length.
Background
In 2020, VR glasses market development is vigorous, and various manufacturers release VR products respectively, and the VR lens cone part of the current main VR glasses product basically has the function of manually adjusting focal length (convenient for people with different myopia degrees to adjust so as to achieve clear sight).
The current VR glasses part mainly comprises a VR glasses body (comprising a VR glasses case, a driving screen circuit board, a screen and a lens cone) and a VR eyeshade (a nose support and a lens hood, hereinafter collectively referred to as the VR eyeshade). To support the weight of VR glasses while maintaining the immersion when using VR glasses, VR eyecups must be used.
At present, the number of the shortsighted people occupies a quite large proportion in the total population, especially, electronic product fans mostly have shortsightedness, and for ensuring the feeling of watching a movie, the lens cone focal length of VR glasses is required to be adjusted before watching the movie by using the VR glasses. When different people use the same VR glasses, the lens cone focal length of the VR glasses needs to be frequently adjusted due to different degrees of myopia. Under the condition, the manual adjustment mode is relatively lagged, and the technological sense of VR glasses cannot be reflected.
And when adjusting the focus, because the VR eye-shade can block the focus adjustment handle or the knob of the VR lens cone after installation. Therefore, when the focal length is adjusted, the VR eyeshade cannot be used, and after the adjustment is completed, the VR eyeshade can be used. After increasing the VR eye-shade, because of there is thickness in VR eye-shade body, lead to not wearing the lens cone focus that the VR eye-shade was adjusted, after increasing the VR eye-shade, probably improper again to lead to repeated focus regulation, and can adjust to suitable position just not necessarily.
The invention patent with the application number of 201811496850.X discloses VR equipment and a focusing method and a focusing device thereof, wherein the focusing method comprises the steps of firstly acquiring an eyeball image of a user, and determining vision data of the user according to the eyeball image; searching a corresponding focal length value according to the vision data; and controlling a motor to adjust the position of the lens according to the searched focal length value. The position of the lens of the VR device is automatically adjusted according to the determined vision data, manual adjustment operation of a user can be avoided, adjustment accuracy of automatic measurement and calculation is higher, and convenience in use of the user is improved.
It carries out focus adjustment according to the eyesight data automatically to disclose in this scheme, finds in the actual research, according to the focus after the eyesight data adjustment, and the video that can not make clear the watching of user, consequently need only improve current method of carrying out VR equipment focusing according to the eyesight data.
Disclosure of Invention
The invention aims to provide an electric adjustment control method, a system and a device for VR lens cone focal length.
In order to achieve the above object, a first aspect of the present invention provides an electric adjustment control method for a VR barrel focal length, which rotationally adjusts the VR barrel focal length by driving a barrel focusing gear by a motor, the method including:
acquiring the myopia degree of a user;
controlling the motor to adjust the VR lens barrel focal length to meet the focal length of the myopia degree according to the myopia degree;
acquiring the resolution of a video to be watched;
and controlling the motor to adjust the focal length of the VR lens barrel to be matched with the resolution of the video to be watched according to the resolution of the video to be watched. On the basis of carrying out VR lens cone focusing according to the myopia number degree at present, increase and carry out further VR lens cone focusing according to the resolution ratio of video to make the user can watch more clear video.
Further, the controlling the motor to adjust the VR barrel focal length to meet the focal length of the myopic degree according to the myopic degree includes:
inquiring a vision focal length function relation table according to the myopia degrees, and acquiring a first adjustment scale X1 of the lens cone focusing gear corresponding to the myopia degrees;
acquiring a current scale X0 of the lens barrel focusing gear;
calculating a first scale difference Δ X1 between the first adjustment scale X1 and the current scale X0, wherein Δ X1 is X1-X0;
controlling the motor to adjust the lens barrel focusing gear to the first adjustment scale X1 according to the first scale difference Delta X1 so as to adjust the VR lens barrel focal length to a focal length satisfying the near vision degree. And acquiring lens barrel focusing gear scales corresponding to the myopia degrees according to the myopia degrees set by the user, and controlling the motor to adjust the VR lens barrel focal length according to the lens barrel focusing gear scale difference. When the calculated lens barrel focusing gear scale difference delta X1 is a positive number, the motor rotates along a first direction, so that the focusing gear scale is increased; when the calculated barrel focusing gear scale difference Δ X1 is negative, the motor rotates in a second direction opposite to the first direction, so that the focusing gear scale decreases. The VR lens cone focal length is adjusted through the rotation of the motor, so that the VR lens cone focal length accords with the myopia data of a user.
And the vision focal length functional relation table is obtained by testing the same character picture through the VR lens barrel by customizing virtual image equipment.
Further, the controlling the motor to adjust the VR lens barrel focal length to match the resolution of the video to be watched according to the resolution of the video to be watched includes:
inquiring a resolution focal length relation table according to the resolution of the video to be watched, and acquiring the focal length of the lens barrel to be adjusted corresponding to the resolution of the video to be watched so as to determine a secondary adjustment scale Xsg1 corresponding to the lens barrel focusing gear;
calculating a second scale difference Δ X2 between the second adjustment scale Xsg1 and the first adjustment scale X1, wherein Δ X2 is Xsg 1-X1;
and controlling the motor to adjust the lens barrel focusing gear to the secondary adjustment scale Xsg1 according to the second scale difference Δ X2 so as to adjust the VR lens barrel focal length to match the resolution of the video to be watched. And acquiring lens barrel focusing gear scales corresponding to the resolution according to the resolution of the video to be watched, and controlling the motor to adjust the VR lens barrel focal length according to the lens barrel focusing gear scale difference. When the calculated lens barrel focusing gear scale difference delta X2 is a positive number, the motor rotates along a first direction, so that the focusing gear scale is increased; when the calculated barrel focusing gear scale difference Δ X2 is negative, the motor rotates in a second direction opposite to the first direction, so that the focusing gear scale decreases. The VR lens cone focal length is adjusted through the rotation of the motor, so that the VR lens cone focal length is matched with the resolution ratio of the video to be watched, and the user can watch the clear video by using the focused VR lens cone.
Further, the resolution focal length relation table is obtained by testing the text pictures with different resolutions through the VR lens barrel by customizing the virtual image equipment. And obtaining a preliminary resolution ratio focal length relation table through testing, wherein the preliminary resolution ratio focal length relation table is used for reference of a user to the VR lens barrel focusing process, and the clear video can be watched by the user.
Further, the method further comprises:
after the VR lens cone focal length is adjusted according to the second scale difference delta X2, playing the video to be watched for the user;
generating a system prompt according to feedback information which is received from the user and cannot identify the video content, controlling the motor to adjust the focal length of the VR lens barrel again under the operation of the user until confirmation information that the user identifies the video content is received, and recording the scale Xp of the lens barrel focusing gear at the moment when the confirmation information is received;
and generating a personalized resolution focal length relation table of the user according to the scale Xp of the lens cone focusing gear and the resolution of the video to be watched.
In the in-service use in-process, because the near-sighted number of degrees that the user set up is inaccurate, perhaps different users use eye habit etc. different users can have the difference to the sense organ of clear video, consequently, adjust the back with the second time carrying on for the first time, the user can also carry out the focus according to system's suggestion, and the motor is controlled by oneself and is adjusted to the video that can watch clear. The system records the scales of the focusing gear, so that the user can directly call the personalized resolution and focus relation table of the user to focus when using the system next time, the focusing time when using the system again is saved, and the focusing process is simplified.
It should be noted that, in the same use process, the same user may view a plurality of videos with different resolutions, and therefore, when switching videos, the resolution needs to be acquired and compared with the resolution corresponding to the current focal length of the video to be viewed, and when the resolution changes, the user is prompted to perform focusing again according to the resolution, and the focusing process is the same as the second adjustment step.
The invention provides a VR lens cone focal length electric adjusting control system, the system includes:
the myopia degree acquisition unit is used for acquiring the myopia degree of the user;
the first adjusting unit is used for controlling the motor to adjust the VR lens cone focal length to meet the focal length of the myopia degree according to the myopia degree;
the resolution acquisition unit is used for acquiring the resolution of the video to be watched;
and the second adjusting unit is used for controlling the motor to adjust the focal length of the VR lens cone to be matched with the resolution of the video to be watched according to the resolution of the video to be watched. The system is provided with a first adjusting unit for controlling the motor to adjust the VR lens cone focal length for the first time according to the output control signal of the myopia degree, and a second adjusting unit for controlling the motor to adjust the VR lens cone focal length for the second time according to the output control signal of the resolution of the video to be watched, so that the system is beneficial for a user to watch a clearer image.
Further, the first adjusting unit includes:
the first target scale acquisition module is used for inquiring a vision focal length function relation table according to the myopia degrees and acquiring a first adjustment scale X1 of the lens cone focusing gear corresponding to the myopia degrees;
a current scale acquiring module, configured to acquire a current scale X0 of the lens barrel focusing gear;
a first adjustment scale difference calculating module, configured to calculate a first scale difference Δ X1 between the first adjustment scale X1 and a current scale X0, where Δ X1 is X1-X0;
and the first adjusting control module is used for controlling the motor to adjust the lens barrel focusing gear to the first adjusting scale X1 according to the first scale difference delta X1 so as to adjust the VR lens barrel focal length to meet the focal length of the myopia degree. Acquiring a scale difference as a scale amount required to be adjusted according to the current scale and the target scale, and when the calculated scale difference delta X1 of the lens barrel focusing gear is a positive number, rotating the motor along a first direction to increase the scale of the focusing gear; when the calculated barrel focusing gear scale difference Δ X1 is negative, the motor rotates in a second direction opposite to the first direction, so that the focusing gear scale decreases. The VR lens cone focal length is adjusted through the rotation of the motor, so that the VR lens cone focal length accords with the myopia data of a user.
Further, the second adjusting unit includes:
the second target scale acquisition module is used for inquiring a resolution focal length relation table according to the resolution of the video to be watched, and acquiring the lens barrel focal length to be adjusted corresponding to the resolution of the video to be watched so as to determine a secondary adjustment scale Xsg1 corresponding to the lens barrel focusing gear;
a second adjustment scale difference calculating module, configured to calculate a second scale difference Δ X2 between the second adjustment scale Xsg1 and the first adjustment scale X1, where Δ X2 is Xsg 1-X1;
and the second adjusting control module is used for controlling the motor to adjust the lens barrel focusing gear to the secondary adjusting scale Xsg1 according to the second scale difference delta X2 so as to adjust the VR lens barrel focal length to be matched with the resolution of the video to be watched. Acquiring a scale difference as a scale amount needing to be adjusted according to the scale where the lens barrel focusing gear is located after the first adjusting unit adjusts and the target scale, and when the calculated lens barrel focusing gear scale difference delta X2 is a positive number, rotating the motor along a first direction to increase the focusing gear scale; when the calculated barrel focusing gear scale difference Δ X2 is negative, the motor rotates in a second direction opposite to the first direction, so that the focusing gear scale decreases. The VR lens cone focal length is adjusted through the rotation of the motor, so that the VR lens cone focal length is matched with the resolution ratio of the video to be watched, and the user can watch the clear video by using the focused VR lens cone.
Further, the system further comprises:
the third adjusting control module is used for controlling the motor to adjust the focal length of the VR lens cone under the operation of a user until confirmation information that the user identifies the video content is received;
and the personalized table generating module is used for generating a personalized resolution focal length relation table of the user according to the scale Xp of the lens cone focusing gear and the resolution of the video to be watched.
In the in-service use process, because the near-sighted number of degrees that the user set up is inaccurate, perhaps different users use the eye habit etc. different users can have the difference to the sense organ of clear video, consequently, the system sets up the third and adjusts control module for after carrying out first regulation and second regulation, the user carries out the focus according to the suggestion of third regulation control module, and the self-control motor carries out the focus and adjusts until can watching clear video. The system is provided with an individualized table generating module to record the scales of the focusing gear, so that the user can directly call the individualized resolution ratio focal distance relation table of the user to focus when using the system next time, the focusing time when using the system again is saved, and the focusing process is simplified.
Further, the system further comprises: and the visual interface unit is used for inputting a focusing instruction by a user. The focusing instructions include a near vision degree setting instruction, a video resolution instruction, and a motor control signal instruction. Visual interface unit can set up on the VR host computer, also can set up at VR glasses display end. Through visual interface unit input instruction, the electric adjustment VR lens cone focus, science and technology feels stronger.
The invention provides a VR lens cone focal length electric adjusting control device based on the VR lens cone focal length electric adjusting control system, and the adjusting control device comprises:
a processor for operating the electric regulation control system and outputting a control signal to a motor control unit;
the motor control unit is connected with the processor and used for controlling the motor to work according to the control signal output by the electric regulation control system;
the motor is connected with the motor control unit and is used for rotating under the control of the control signal and driving the focusing gear of the VR lens cone to rotate so as to realize focusing;
the focusing gear is fixedly arranged on the VR lens barrel and is used for realizing the focusing of the VR lens barrel under the driving of the motor;
and the focusing gear position sensor is connected with the processor and used for detecting the scale position of the focusing gear and transmitting the scale position to the processor. The electric adjustment control device is a hardware structure for executing an electric adjustment control method, and the electric adjustment control method controls the electric adjustment control device to rotate to realize VR lens cone focusing.
Furthermore, a first gear is fixedly mounted on a rotating shaft of the motor, and the first gear is meshed with the focusing gear. The motor rotates, and the first gear on the motor shaft rotates simultaneously, drives the focusing gear through gear drive and rotates, realizes VR lens cone focusing.
Further, a position mark is arranged on the focusing gear. The mark facilitates the focusing gear position sensor to detect the current position of the gear.
In another aspect, the present invention provides a machine-readable storage medium having stored thereon instructions for causing a machine to execute the VR barrel focal length electric adjustment control method.
Through the technical scheme, the electric adjustment control device is controlled by the electric adjustment control method to realize VR lens barrel focusing, the problem of inconvenient focusing caused by interference of a VR eye patch with a VR lens barrel focusing handle or a knob can be solved, the focus of the VR lens barrel can be adjusted while the definition of an image of the VR lens barrel is watched by human eyes, the focusing effect is more accurate, and the VR image seen by the human eyes is clearer after focusing.
Can watch when different resolution ratio videos at VR glasses automatic prompt adjusts VR glasses lens cone focus, promote the video VR of different resolution ratios and see shadow definition and comfort level, promote the sight shadow experience of VR glasses greatly and feel.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:
FIG. 1 is a flow chart of a method for controlling electric adjustment according to one embodiment of the present invention;
FIG. 2 is a block diagram of an electric regulation control system provided in one embodiment of the present invention;
fig. 3 is a schematic diagram of an electric adjustment control device according to an embodiment of the present invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
Fig. 1 is a flowchart of an electric adjustment control method according to an embodiment of the present invention. As shown in fig. 1, the VR barrel focal length electric adjustment control method of the present invention adjusts the VR barrel focal length by driving a barrel focusing gear to rotate by a motor, the method includes:
acquiring the myopia degree of a user;
controlling the motor to adjust the VR lens barrel focal length to meet the focal length of the myopia degree according to the myopia degree;
acquiring the resolution of a video to be watched;
and controlling the motor to adjust the focal length of the VR lens barrel to be matched with the resolution of the video to be watched according to the resolution of the video to be watched. On the basis of carrying out VR lens cone focusing according to the myopia number degree at present, increase and carry out further VR lens cone focusing according to the resolution ratio of video to make the user can watch more clear video.
Further, the controlling the motor to adjust the VR barrel focal length to meet the focal length of the myopic degree according to the myopic degree includes:
inquiring a vision focal length function relation table according to the myopia degrees, and acquiring a first adjustment scale X1 of the lens cone focusing gear corresponding to the myopia degrees;
acquiring a current scale X0 of the lens barrel focusing gear;
calculating a first scale difference Δ X1 between the first adjustment scale X1 and the current scale X0, wherein Δ X1 is X1-X0;
controlling the motor to adjust the lens barrel focusing gear to the first adjustment scale X1 according to the first scale difference Delta X1 so as to adjust the VR lens barrel focal length to a focal length satisfying the near vision degree. And acquiring lens barrel focusing gear scales corresponding to the myopia degrees according to the myopia degrees set by the user, and controlling the motor to adjust the VR lens barrel focal length according to the lens barrel focusing gear scale difference. When the calculated lens barrel focusing gear scale difference delta X1 is a positive number, the motor rotates along a first direction, so that the focusing gear scale is increased; when the calculated barrel focusing gear scale difference Δ X1 is negative, the motor rotates in a second direction opposite to the first direction, so that the focusing gear scale decreases. The VR lens cone focal length is adjusted through the rotation of the motor, so that the VR lens cone focal length accords with the myopia data of a user.
And the vision focal length functional relation table is obtained by testing the same character picture through the VR lens barrel by customizing virtual image equipment.
Test the characters and pictures through the VR lens barrel by customizing virtual image equipment, comprising the following steps:
firstly, calculating a focal length f according to the myopia degree, wherein f is 100/D, and D is the myopia degree;
then place characters picture, VR lens cone and customization virtual image equipment according to the focus that calculates, characters picture and customization virtual image equipment are located the both sides of VR lens cone respectively, and characters picture is located the objective side, and customization virtual image equipment is located the observation side. The distance d between the character picture and the VR lens cone is equal to the focal length of the myopia degree to be measured, and d is f;
adjusting a focusing gear of the VR lens barrel to realize focusing of the VR lens barrel, collecting images of text pictures through the VR lens barrel by the customized virtual image device, stopping adjusting the focal length of the VR lens barrel when clear images are collected by the customized virtual image device, and recording the scale of the focusing gear of the current VR lens barrel;
and repeating the steps until VR lens cone focusing gear scales corresponding to all near-sighted degrees within the rated focusing range of the VR lens cone are obtained laterally, and generating a vision focal length function relation table.
The tested data comprises a scale position x1 of a lens cone focusing gear and correspondingly adjusted myopia degrees y1, wherein x1 is any value which is greater than or equal to 0 and less than or equal to the total scale degrees, y1 is a value which is greater than or equal to 0, and in the actual production and use process, because the VR lens cone has the maximum focusing range, y1 also has an upper limit, and the specific upper limit is different according to different VR lens cones. In the actual measurement process, x1 may be set to the minimum pitch of the focus gear per operation for convenience of measurement. And testing to obtain the vision focal length function relation table. During testing, the scale position of the lens cone focusing gear is adjusted to measure and obtain the corresponding myopia degree, and when the vision and focus function relation table is applied to the using process, the scale position of the lens cone focusing gear is obtained according to the myopia degree. If the scale position of the lens barrel focusing gear is set to be X, the lens barrel focal length myopic degree is Y, the function is Y (Fc) (X), and correspondingly, the inverse function is X (Fc 1 (Y). The value range of Y is 0 degree to Ymax, Ymax is the maximum myopia degree of VR lens cone focal length that can be adjusted, the value range of X is 0 degree to Xmax, and Xmax is the maximum scale degree of VR lens cone focal length that can be adjusted.
In consideration of the fact that the VR lens can play videos with different resolutions in actual use, for the same user, the focal lengths to be adjusted when the user sees different videos are different. Suppose that the resolution of the common text picture adopted by the supplier during the test is the same as the video definition of the 576i video resolution, the myopia degree is 300 degrees, the focusing focal length is 30cm, and the corresponding knob scale position is 3. Then for a user viewing 4K resolution video, the focal length may need to be adjusted to 25cm, corresponding to a knob scale of 3.3, whereby it can be seen that different video resolutions may have an impact on viewing clarity.
Further, the controlling the motor to adjust the VR lens barrel focal length to match the resolution of the video to be watched according to the resolution of the video to be watched includes:
inquiring a resolution focal length relation table according to the resolution of the video to be watched, and acquiring the focal length of the lens barrel to be adjusted corresponding to the resolution of the video to be watched so as to determine a secondary adjustment scale Xsg1 corresponding to the lens barrel focusing gear;
calculating a second scale difference Δ X2 between the second adjustment scale Xsg1 and the first adjustment scale X1, wherein Δ X2 is Xsg 1-X1;
and controlling the motor to adjust the lens barrel focusing gear to the secondary adjustment scale Xsg1 according to the second scale difference Δ X2 so as to adjust the VR lens barrel focal length to match the resolution of the video to be watched. And acquiring lens barrel focusing gear scales corresponding to the resolution according to the resolution of the video to be watched, and controlling the motor to adjust the VR lens barrel focal length according to the lens barrel focusing gear scale difference. When the calculated lens barrel focusing gear scale difference delta X2 is a positive number, the motor rotates along a first direction, so that the focusing gear scale is increased; when the calculated barrel focusing gear scale difference Δ X2 is negative, the motor rotates in a second direction opposite to the first direction, so that the focusing gear scale decreases. The VR lens cone focal length is adjusted through the rotation of the motor, so that the VR lens cone focal length is matched with the resolution ratio of the video to be watched, and the user can watch the clear video by using the focused VR lens cone.
Further, the resolution focal length relation table is obtained by testing the text pictures with different resolutions through the VR lens barrel by customizing the virtual image equipment. And obtaining a preliminary resolution ratio focal length relation table through testing, wherein the preliminary resolution ratio focal length relation table is used for reference of a user to the VR lens barrel focusing process, and the clear video can be watched by the user.
Further, the method further comprises:
after the VR lens cone focal length is adjusted according to the second scale difference delta X2, playing the video to be watched for the user;
generating a system prompt according to feedback information which is received from the user and cannot identify the video content, controlling the motor to adjust the focal length of the VR lens barrel again under the operation of the user until confirmation information that the user identifies the video content is received, and recording the scale Xp of the lens barrel focusing gear at the moment when the confirmation information is received;
and generating a personalized resolution focal length relation table of the user according to the scale Xp of the lens cone focusing gear and the resolution of the video to be watched. In the in-service use in-process, because the near-sighted number of degrees that the user set up is inaccurate, perhaps different users use eye habit etc. different users can have the difference to the sense organ of clear video, consequently, adjust the back with the second time carrying on for the first time, the user can also carry out the focus according to system's suggestion, and the motor is controlled by oneself and is adjusted to the video that can watch clear. The system records the scales of the focusing gear, so that the user can directly call the personalized resolution and focus relation table of the user to focus when using the system next time, the focusing time when using the system again is saved, and the focusing process is simplified.
It should be noted that, in the same use process, the same user may view a plurality of videos with different resolutions, and therefore, when performing video switching, it is necessary to acquire the resolution of the video to be viewed, compare the resolution of the video to be viewed with the resolution corresponding to the current focal length, and prompt the user to perform focusing again according to the resolution when the resolution changes, where the focusing process is the same as the second adjustment step.
FIG. 2 is a block diagram of an electric regulation control system provided in one embodiment of the present invention. As shown in fig. 2, the system includes:
the myopia degree acquisition unit is used for acquiring the myopia degree of the user;
the first adjusting unit is used for controlling the motor to adjust the VR lens cone focal length to meet the focal length of the myopia degree according to the myopia degree;
the resolution acquisition unit is used for acquiring the resolution of the video to be watched;
and the second adjusting unit is used for controlling the motor to adjust the focal length of the VR lens cone to be matched with the resolution of the video to be watched according to the resolution of the video to be watched. The system is provided with a first adjusting unit for controlling the motor to adjust the VR lens cone focal length for the first time according to the output control signal of the myopia degree, and a second adjusting unit for controlling the motor to adjust the VR lens cone focal length for the second time according to the output control signal of the resolution of the video to be watched, so that the system is beneficial for a user to watch a clearer image.
Further, the first adjusting unit includes:
the first target scale acquisition module is used for inquiring a vision focal length function relation table according to the myopia degrees and acquiring a first adjustment scale X1 of the lens cone focusing gear corresponding to the myopia degrees;
a current scale acquiring module, configured to acquire a current scale X0 of the lens barrel focusing gear;
a first adjustment scale difference calculating module, configured to calculate a first scale difference Δ X1 between the first adjustment scale X1 and a current scale X0, where Δ X1 is X1-X0;
and the first adjusting control module is used for controlling the motor to adjust the lens barrel focusing gear to the first adjusting scale X1 according to the first scale difference delta X1 so as to adjust the VR lens barrel focal length to meet the focal length of the myopia degree. Acquiring a scale difference as a scale amount required to be adjusted according to the current scale and the target scale, and when the calculated scale difference delta X1 of the lens barrel focusing gear is a positive number, rotating the motor along a first direction to increase the scale of the focusing gear; when the calculated barrel focusing gear scale difference Δ X1 is negative, the motor rotates in a second direction opposite to the first direction, so that the focusing gear scale decreases. The VR lens cone focal length is adjusted through the rotation of the motor, so that the VR lens cone focal length accords with the myopia data of a user.
Further, the second adjusting unit includes:
the second target scale acquisition module is used for inquiring a resolution focal length relation table according to the resolution of the video to be watched, and acquiring the lens barrel focal length to be adjusted corresponding to the resolution of the video to be watched so as to determine a secondary adjustment scale Xsg1 corresponding to the lens barrel focusing gear;
a second adjustment scale difference calculating module, configured to calculate a second scale difference Δ X2 between the second adjustment scale Xsg1 and the first adjustment scale X1, where Δ X2 is Xsg 1-X1;
and the second adjusting control module is used for controlling the motor to adjust the lens barrel focusing gear to the secondary adjusting scale Xsg1 according to the second scale difference delta X2 so as to adjust the VR lens barrel focal length to be matched with the resolution of the video to be watched. Acquiring a scale difference as a scale amount needing to be adjusted according to the scale where the lens barrel focusing gear is located after the first adjusting unit adjusts and the target scale, and when the calculated lens barrel focusing gear scale difference delta X2 is a positive number, rotating the motor along a first direction to increase the focusing gear scale; when the calculated barrel focusing gear scale difference Δ X2 is negative, the motor rotates in a second direction opposite to the first direction, so that the focusing gear scale decreases. The VR lens cone focal length is adjusted through the rotation of the motor, so that the VR lens cone focal length is matched with the resolution ratio of the video to be watched, and the user can watch the clear video by using the focused VR lens cone.
In another embodiment of the present invention, the system further comprises:
the third adjusting control module is used for controlling the motor to adjust the focal length of the VR lens cone under the operation of a user until confirmation information that the user identifies the video content is received;
and the personalized table generating module is used for generating a personalized resolution focal length relation table of the user according to the scale Xp of the lens cone focusing gear and the resolution of the video to be watched.
In the in-service use process, because the near-sighted number of degrees that the user set up is inaccurate, perhaps different users use the eye habit etc. different users can have the difference to the sense organ of clear video, consequently, the system sets up the third and adjusts control module for after carrying out first regulation and second regulation, the user carries out the focus according to the suggestion of third regulation control module, and the self-control motor carries out the focus and adjusts until can watching clear video. The system is provided with an individualized table generating module to record the scales of the focusing gear, so that the user can directly call the individualized resolution ratio focal distance relation table of the user to focus when using the system next time, the focusing time when using the system again is saved, and the focusing process is simplified.
Further, the system further comprises: and the visual interface unit is used for inputting a focusing instruction by a user. The focusing instructions include a near vision degree setting instruction, a video resolution instruction, and a motor control signal instruction. Visual interface unit can set up on the VR host computer, also can set up at VR glasses display end. Through visual interface unit input instruction, the electric adjustment VR lens cone focus, science and technology feels stronger.
In another embodiment of the invention, the electric adjustment control system does not set the initial resolution focal distance relation table, after the first adjustment, the user wears to watch the video, and directly uses the third adjustment control module to adjust according to the indication of the visual interface until the video can be clearly watched, at this time, the scales of the current focusing secondary wheel and the resolution of the video are recorded, and the personalized resolution focal distance relation table of the user is generated through long-term accumulation and is used as the basis for the subsequent focusing. In some embodiments, the corresponding data is recorded and stored by setting a special APP.
Fig. 3 is a schematic diagram of an electric adjustment control device according to an embodiment of the present invention. As shown in fig. 3, the regulation control means includes:
a processor for operating the electric regulation control system and outputting a control signal to a motor control unit;
the motor control unit is connected with the processor and used for controlling the motor to work according to the control signal output by the electric regulation control system;
the motor is connected with the motor control unit and is used for rotating under the control of the control signal and driving the focusing gear of the VR lens cone to rotate so as to realize focusing;
the focusing gear is fixedly arranged on the VR lens barrel and is used for realizing the focusing of the VR lens barrel under the driving of the motor;
and the focusing gear position sensor is connected with the processor and used for detecting the scale position of the focusing gear and transmitting the scale position to the processor.
In one embodiment of the invention, the motor control unit is realized by a motor power supply IC, and after the motor power supply IC receives a control signal output by the electric regulation control system, the motor power supply IC outputs a voltage signal U, the voltage signal U is the same as the positive and negative of the delta X1 or the delta X2, the motor is driven to work, and the positive and negative of the voltage signal U determines the positive and negative directions of rotation of the motor-carried gear. In this embodiment, the motor is a small-sized slow-speed motor, and a first gear is fixedly mounted on a rotating shaft of the motor and is meshed with the focusing gear. The small size and light weight motor is conveniently installed inside the casing of the VR eye, and the motor is powered by the motor power supply IC. After receiving power supply, the motor drives the first gear to rotate, and the first gear drives the focusing gear of the VR lens cone to rotate for focusing.
Further, a position mark is arranged on the focusing gear. The mark facilitates the focusing gear position sensor to detect the current position of the gear.
When the electric adjusting control device is reused, the electric adjusting control device is required to be matched with the VR lens cone for use, the focusing gear is fixedly arranged on the VR lens cone, and the VR lens cone is driven to focus when the electric adjusting control device works.
The embodiment of the invention also provides a machine-readable storage medium, wherein the machine-readable storage medium is stored with instructions, and the instructions are used for enabling a machine to execute the VR lens cone focal length electric adjustment control method.
Those skilled in the art will appreciate that all or part of the steps in the method for implementing the above embodiments may be implemented by a program, which is stored in a storage medium and includes several instructions to enable a single chip, a chip, or a processor (processor) to execute all or part of the steps in the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
While the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the embodiments of the present invention are not limited to the details of the above embodiments, and various simple modifications can be made to the technical solution of the embodiments of the present invention within the technical idea of the embodiments of the present invention, and the simple modifications are within the scope of the embodiments of the present invention. It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the embodiments of the present invention will not be described separately for the various possible combinations.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as disclosed in the embodiments of the present invention as long as it does not depart from the spirit of the embodiments of the present invention.
Claims (15)
1. An electric adjustment control method for VR lens cone focal length, which adjusts the VR lens cone focal length by driving a lens cone focusing gear to rotate through a motor, the method comprises the following steps:
acquiring the myopia degree of a user;
controlling the motor to adjust the VR lens barrel focal length to meet the focal length of the myopia degree according to the myopia degree;
acquiring the resolution of a video to be watched;
and controlling the motor to adjust the focal length of the VR lens barrel to be matched with the resolution of the video to be watched according to the resolution of the video to be watched.
2. The VR barrel focal length electrical adjustment control method of claim 1, wherein the controlling the motor to adjust the VR barrel focal length to meet the focal length of the near vision power according to the near vision power comprises:
inquiring a vision focal length function relation table according to the myopia degrees, and acquiring a first adjustment scale X1 of the lens cone focusing gear corresponding to the myopia degrees;
acquiring a current scale X0 of the lens barrel focusing gear;
calculating a first scale difference Δ X1 between the first adjustment scale X1 and the current scale X0, wherein Δ X1 is X1-X0;
controlling the motor to adjust the lens barrel focusing gear to the first adjustment scale X1 according to the first scale difference Delta X1 so as to adjust the VR lens barrel focal length to a focal length satisfying the near vision degree.
3. The VR barrel focal length electric adjustment control method of claim 2, wherein the vision focal length function table is obtained by testing the same text picture through the VR barrel by customizing a virtual image device.
4. The VR barrel focal length electric adjustment control method of claim 2, wherein the controlling the motor to adjust the VR barrel focal length to match the resolution of the video to be viewed according to the resolution of the video to be viewed includes:
inquiring a resolution focal length relation table according to the resolution of the video to be watched, and acquiring the focal length of the lens barrel to be adjusted corresponding to the resolution of the video to be watched so as to determine a secondary adjustment scale Xsg1 corresponding to the lens barrel focusing gear;
calculating a second scale difference Δ X2 between the second adjustment scale Xsg1 and the first adjustment scale X1, wherein Δ X2 is Xsg 1-X1;
and controlling the motor to adjust the lens barrel focusing gear to the secondary adjustment scale Xsg1 according to the second scale difference Δ X2 so as to adjust the VR lens barrel focal length to match the resolution of the video to be watched.
5. The VR cylinder focal length electric adjustment control method of claim 4, wherein the resolution focal length relation table is obtained by customizing a virtual image device to test text pictures with different resolutions through the VR cylinder.
6. The VR barrel focal length electrical adjustment control method of claim 5, further comprising:
after the VR lens cone focal length is adjusted according to the second scale difference delta X2, playing the video to be watched for the user;
generating a system prompt according to feedback information which is received from the user and cannot identify the video content, controlling the motor to adjust the focal length of the VR lens barrel again under the operation of the user until confirmation information that the user identifies the video content is received, and recording the scale Xp of the lens barrel focusing gear at the moment when the confirmation information is received;
and generating a personalized resolution focal length relation table of the user according to the scale Xp of the lens cone focusing gear and the resolution of the video to be watched.
7. An electrical adjustment control system for VR barrel focus, said system comprising:
the myopia degree acquisition unit is used for acquiring the myopia degree of the user;
the first adjusting unit is used for controlling the motor to adjust the VR lens cone focal length to meet the focal length of the myopia degree according to the myopia degree;
the resolution acquisition unit is used for acquiring the resolution of the video to be watched;
and the second adjusting unit is used for controlling the motor to adjust the focal length of the VR lens cone to be matched with the resolution of the video to be watched according to the resolution of the video to be watched.
8. The VR barrel focal length electrical adjustment control system of claim 7, wherein the first adjustment unit includes:
the first target scale acquisition module is used for inquiring a vision focal length function relation table according to the myopia degrees and acquiring a first adjustment scale X1 of the lens cone focusing gear corresponding to the myopia degrees;
a current scale acquiring module, configured to acquire a current scale X0 of the lens barrel focusing gear;
a first adjustment scale difference calculating module, configured to calculate a first scale difference Δ X1 between the first adjustment scale X1 and a current scale X0, where Δ X1 is X1-X0;
and the first adjusting control module is used for controlling the motor to adjust the lens barrel focusing gear to the first adjusting scale X1 according to the first scale difference delta X1 so as to adjust the VR lens barrel focal length to meet the focal length of the myopia degree.
9. The VR barrel focal length electrical adjustment control system of claim 8, wherein the second adjustment unit includes:
the second target scale acquisition module is used for inquiring a resolution focal length relation table according to the resolution of the video to be watched, and acquiring the lens barrel focal length to be adjusted corresponding to the resolution of the video to be watched so as to determine a secondary adjustment scale Xsg1 corresponding to the lens barrel focusing gear;
a second adjustment scale difference calculating module, configured to calculate a second scale difference Δ X2 between the second adjustment scale Xsg1 and the first adjustment scale X1, where Δ X2 is Xsg 1-X1;
and the second adjusting control module is used for controlling the motor to adjust the lens barrel focusing gear to the secondary adjusting scale Xsg1 according to the second scale difference delta X2 so as to adjust the VR lens barrel focal length to be matched with the resolution of the video to be watched.
10. The VR barrel focal length electro-kinetic adjustment control system of claim 8, further comprising:
the third adjusting control module is used for controlling the motor to adjust the focal length of the VR lens cone under the operation of a user until confirmation information that the user identifies the video content is received;
and the personalized table generating module is used for generating a personalized resolution focal length relation table of the user according to the scale Xp of the lens cone focusing gear and the resolution of the video to be watched.
11. The VR barrel focal length electro-kinetic adjustment control system of claim 7, further comprising:
and the visual interface unit is used for inputting a focusing instruction by a user.
12. An electric adjustment control device for VR cylinder focal length based on the electric adjustment control system of any of claims 7-10, the adjustment control device comprising:
a processor for operating the electric regulation control system and outputting a control signal to a motor control unit;
the motor control unit is connected with the processor and used for controlling the motor to work according to the control signal output by the electric regulation control system;
the motor is connected with the motor control unit and is used for rotating under the control of the control signal and driving the focusing gear of the VR lens cone to rotate so as to realize focusing;
the focusing gear is fixedly arranged on the VR lens barrel and is used for realizing the focusing of the VR lens barrel under the driving of the motor;
and the focusing gear position sensor is connected with the processor and used for detecting the scale position of the focusing gear and transmitting the scale position to the processor.
13. The VR barrel focal length electrical adjustment control device of claim 12, wherein a first gear is fixedly mounted on a rotating shaft of the motor, and the first gear is engaged with the focusing gear.
14. The VR barrel focal length electric adjustment control apparatus of claim 12, wherein a position mark is provided on the focusing gear.
15. A machine-readable storage medium having instructions stored thereon for causing a machine to perform the VR barrel focal length electrical adjustment control method of any of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010889444.0A CN111965781B (en) | 2020-08-28 | 2020-08-28 | VR lens barrel focal length electric adjustment control method, system and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010889444.0A CN111965781B (en) | 2020-08-28 | 2020-08-28 | VR lens barrel focal length electric adjustment control method, system and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111965781A true CN111965781A (en) | 2020-11-20 |
| CN111965781B CN111965781B (en) | 2022-02-25 |
Family
ID=73400963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010889444.0A Active CN111965781B (en) | 2020-08-28 | 2020-08-28 | VR lens barrel focal length electric adjustment control method, system and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111965781B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112785530A (en) * | 2021-02-05 | 2021-05-11 | 广东九联科技股份有限公司 | Image rendering method, device and equipment for virtual reality and VR equipment |
| CN113655588A (en) * | 2021-07-13 | 2021-11-16 | 深圳远见睿视科技有限公司 | Adaptive lens expansion control method, device, equipment and storage medium |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001116983A (en) * | 1999-10-20 | 2001-04-27 | Pfu Ltd | Focus position adjusting device, focus position adjusting method of image reader, and recording medium |
| JP2011170186A (en) * | 2010-02-19 | 2011-09-01 | Equos Research Co Ltd | Display system |
| CN107065190A (en) * | 2017-05-02 | 2017-08-18 | 青岛海信移动通信技术股份有限公司 | A kind of method of the display information in VR equipment, device and VR equipment |
| CN107526165A (en) * | 2016-06-15 | 2017-12-29 | 威亚视觉科技股份有限公司 | Head-mounted personal multimedia system, visual auxiliary device and related glasses |
| US20180003962A1 (en) * | 2014-12-26 | 2018-01-04 | Cy Vision Inc. | Near-to-eye display device with variable resolution |
| CN206930429U (en) * | 2017-06-27 | 2018-01-26 | 歌尔科技有限公司 | The device and virtual reality helmet of lens back focal length are determined using camera |
| WO2019112114A1 (en) * | 2017-12-07 | 2019-06-13 | 엘지전자 주식회사 | Glasses-type terminal and operation method thereof |
-
2020
- 2020-08-28 CN CN202010889444.0A patent/CN111965781B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001116983A (en) * | 1999-10-20 | 2001-04-27 | Pfu Ltd | Focus position adjusting device, focus position adjusting method of image reader, and recording medium |
| JP2011170186A (en) * | 2010-02-19 | 2011-09-01 | Equos Research Co Ltd | Display system |
| US20180003962A1 (en) * | 2014-12-26 | 2018-01-04 | Cy Vision Inc. | Near-to-eye display device with variable resolution |
| CN107526165A (en) * | 2016-06-15 | 2017-12-29 | 威亚视觉科技股份有限公司 | Head-mounted personal multimedia system, visual auxiliary device and related glasses |
| CN107065190A (en) * | 2017-05-02 | 2017-08-18 | 青岛海信移动通信技术股份有限公司 | A kind of method of the display information in VR equipment, device and VR equipment |
| CN206930429U (en) * | 2017-06-27 | 2018-01-26 | 歌尔科技有限公司 | The device and virtual reality helmet of lens back focal length are determined using camera |
| WO2019112114A1 (en) * | 2017-12-07 | 2019-06-13 | 엘지전자 주식회사 | Glasses-type terminal and operation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112785530A (en) * | 2021-02-05 | 2021-05-11 | 广东九联科技股份有限公司 | Image rendering method, device and equipment for virtual reality and VR equipment |
| CN112785530B (en) * | 2021-02-05 | 2024-05-24 | 广东九联科技股份有限公司 | Image rendering method, device and equipment for virtual reality and VR equipment |
| CN113655588A (en) * | 2021-07-13 | 2021-11-16 | 深圳远见睿视科技有限公司 | Adaptive lens expansion control method, device, equipment and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111965781B (en) | 2022-02-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11666211B2 (en) | Computerized testing and determination of a visual field of a patient | |
| US20230118575A1 (en) | Computerized refraction and astigmatism determination | |
| CN111965781B (en) | VR lens barrel focal length electric adjustment control method, system and device | |
| CN111295129B (en) | Visual acuity examination | |
| CN107462992A (en) | A kind of adjusting method for wearing display device, device and wear display device | |
| CN104076481A (en) | Method for automatically setting focus and therefor | |
| CN109452928B (en) | Lens displacement optometry system based on pupil image acquisition by adopting cloud technology | |
| CN107065190B (en) | Method and device for displaying information on VR equipment and VR equipment | |
| CN111294585B (en) | VR (virtual reality) equipment and focusing method and device thereof | |
| CN113672077A (en) | Data processing method and equipment thereof | |
| CN108064353A (en) | Head-mounted display apparatus and its diopter display methods | |
| US20060187412A1 (en) | Eye accommodation function state measurement device | |
| CN212730363U (en) | Intelligent wearable device for visual training | |
| CN214954339U (en) | Optical module and head-mounted display device with same | |
| CN112998644B (en) | Intelligent optometry unit with left and right eye full-automatic tracking function and working method thereof | |
| CN113693549A (en) | Vision detection method and device and wearable device | |
| CN113655588A (en) | Adaptive lens expansion control method, device, equipment and storage medium | |
| KR101571332B1 (en) | Digital photographing apparatus and method for controlling the same | |
| CN110840720A (en) | Vision training system and method | |
| CN220120361U (en) | Optical automatic measuring system of near-eye display equipment | |
| CN107515104A (en) | Image quality measurement device, system and method | |
| CN112752537A (en) | Method for determining at least one geometric form parameter of a subject in a natural posture for determining a vision correction equipment | |
| JP4628761B2 (en) | Optometry equipment | |
| JP2003248162A (en) | Object distance display apparatus | |
| JPH1020183A (en) | Image pickup device and electronic provided with line-of-sight detecting function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |