CN106970468A - A kind of autofocusing VR helmets - Google Patents

Abstract

The invention discloses a self-adjusting VR helmet, comprising: an adjustable focus lens group and a micro motor; The eyepieces correspond to the user's left and right eyes, respectively. The left eyepiece and the right eyepiece respectively contain one lens or are respectively composed of at least two laminated lenses; each of the left eyepiece and the right eyepiece has at least one multi-focus lens. In the present invention, one or more multi-focus lenses are stacked to form the binocular lens of the adjustable focus lens group; the gear is driven by the rotation of the micro motor, and the micro motor is linked with the gear to adapt the binocular lens of the focus lens group to turn the corresponding lens into a suitable position, realize the zoom function, and complete self-focusing. In this way, myopia patients can experience the VR helmet with naked eyes, and obtain the same experience effect as people with normal vision.

Description

A self-adjusting VR helmet

technical field

The present invention relates to the technical field of virtual reality (Virtual Reality, VR) helmet equipment, in particular to a self-adjusting VR helmet.

Background technique

VR helmet is a head-mounted experience device, which comprehensively utilizes computer graphics system and multi-interface control equipment to generate an interactive three-dimensional environment and provide the experiencer with high-quality immersion.

VR helmet is an important branch of virtual reality technology. It is widely used in medicine, entertainment, military aerospace, interior design, real estate development, cultural relics, games, e-commerce, Web3D, road bridges, biomechanics, shipbuilding, vehicle simulation, geography, Education and other fields have broad application prospects. Now there are VR helmets with different prices and functions launched by many companies in the market. Such as Samsung's VR helmet products, HTC Vive jointly developed by HTC and Valve, Facebook's OculusVR and Sony's SCE. However, due to inherent structural reasons, these VR helmets make the experience of myopia patients inconvenient. Usually, myopia patients have to wear their own myopia optical glasses first, and then wear a heavy VR helmet in order to experience the current VR products on the market normally. This will undoubtedly reduce the experience and use effect of myopia patients on VR helmet products.

At present, there are three main ways to help myopia patients use VR helmets. One is that consumers provide the merchants with myopia conditions, and then the manufacturer customizes the corresponding eyepieces; the second is to expand the space between the helmet and the eyeball so that consumers can wear the helmet with glasses; the third is to adjust the display Adjust the focus by adjusting the distance between the screen and the eyepiece. The first method of customizing the eyepiece will increase the production cost of the manufacturer, leading to an increase in the price of VR helmets, which is not conducive to the entry of VR helmets into the lives of ordinary consumers, and is also not conducive to the protection of consumers' personal information. The second method is to increase the space between the helmet and the eyeball so that consumers can wear VR headsets with glasses. This will reduce the comfort of wearing the helmet on the one hand and reduce the fidelity of the virtual scene on the other hand. The third method is to adjust the focus by adjusting the distance between the display screen and the eyepiece. This method has a certain limit on the focus range. After focusing, problems such as aberration distortion, image distortion, and narrowing of the field of view may occur.

Contents of the invention

Based on the technical problems existing in the background technology, the present invention proposes a self-adjusting VR helmet.

A self-adjusting VR helmet proposed by the present invention includes: an adjustable focus lens group and a micro motor;

The adjustable focus lens group includes a left eyepiece and a right eyepiece, the left eyepiece contains one lens or is composed of at least two laminated lenses, and the right eyepiece contains one lens or is composed of at least two laminated lenses;

At least one of the lenses of the left eyepiece is a multifocal lens, and the diopter of the left eyepiece can be adjusted by rotating the multifocal lens; at least one of the lenses of the right eyepiece is a multifocal lens, and the diopter of the right eyepiece can be adjusted by rotating the multifocal lens Adjustment;

In the left eyepiece and the right eyepiece, each lens is connected to a gear, and the micro motor is connected to each gear and drives the lens corresponding to the gear to rotate through the driving gear.

Preferably, in the left eyepiece and the right eyepiece, each lens has 5-9 focal points respectively.

Preferably, the structure of the left eyepiece and the right eyepiece are the same, and the lenses in the corresponding positions of the left eyepiece and the right eyepiece are on the same plane.

Preferably, in the left eyepiece and the right eyepiece, a gap of 2 mm to 3 mm is maintained between two adjacent lenses in the vertical direction.

Preferably, an input module is also included, the input module is connected to the central control unit of the helmet, and the central control module is used to control the micro-motor to adjust the lenses in the left eyepiece and the right eyepiece according to the lens group adjustment target obtained from the input module.

Preferably, the input module is a mobile phone or a computer connected to the central control unit of the helmet, or a human-computer interaction device arranged on the shell of the helmet and connected to the central control unit.

Preferably, it also includes an infrared ranging sensor connected to the central control unit for measuring the distance between the helmet user and surrounding obstacles.

Preferably, it also includes a motion capture module, which is connected to the central control unit and is used to capture the user's head movements and body movements; the central control unit is used to judge the visual focus and movement direction of the helmet user according to the data captured by the motion capture module; Preferably, the motion capture module includes a gyroscope, a gravity sensor and an acceleration sensor.

Preferably, a system board is arranged inside the helmet, and the central control unit, gyroscope, gravity sensor, and acceleration sensor are all integrated in the system board, and the micromotor and the infrared distance measuring sensor are all connected to the system board.

Preferably, the 3D eyepiece is an Alver eyepiece.

In the present invention, one or more multi-focus lenses are stacked to form the binocular focus lens group; the gear is driven by the rotation of the micro motor, and the micro motor is linked with the gear to adapt the binocular lens of the focus lens group to turn the corresponding lens into a suitable position, realize the zoom function, and complete self-focusing. In this way, myopia patients can experience the VR helmet with naked eyes, and obtain the same experience effect as people with normal vision.

The self-adjusting VR helmet provided by the present invention has high integration, low cost, comprehensive functions and convenient use.

Description of drawings

Fig. 1 is a front perspective view of a self-focusing VR helmet proposed by the present invention;

Fig. 2 is a perspective view of a self-focusing VR helmet proposed by the present invention;

Fig. 3 is a schematic diagram of an adjustable focus lens in an embodiment of the present invention;

Fig. 4 is a schematic diagram of an adjustable focus lens group (binocular) in an embodiment of the present invention;

Fig. 5 is a schematic diagram of connecting components of the present invention.

detailed description

Referring to FIG. 1 , FIG. 2 , and FIG. 5 , a self-adjusting VR helmet proposed by the present invention includes: an adjustable focus lens group 1 and a micro motor 2 .

The adjustable focus lens group 1 includes a left eyepiece and a right eyepiece. When the helmet is worn, the left eyepiece and the right eyepiece of the adjustable focus lens group 1 correspond to the user's left eye and right eye respectively.

The left eyepiece comprises one lens or is composed of at least two lenses stacked, at least one of the lenses of the left eyepiece is a multifocal lens, and the diopter of the left eyepiece can be adjusted by rotating the multifocal lens to change the diopter linear superposition value. The right eyepiece comprises one lens or is composed of at least two lenses stacked, at least one of the lenses of the right eyepiece is a multifocal lens, and the diopter of the right eyepiece can be adjusted by rotating the multifocal lens to change the diopter linear superposition value. During specific implementation, the left eyepiece and the right eyepiece can also be composed of 3-4 layers of multi-focal lenses, and the eyeglasses can be made of 5-9 focal points.

Hereinafter, the adjustable focus lens group 1 in this application will be described in conjunction with a specific embodiment.

For example, referring to FIG. 3 and FIG. 4 , in this embodiment, the left eyepiece and the right eyepiece are respectively composed of two 5-focal lens stacks. Specifically, the left eyepiece is composed of a lens 9 and a lens 10 , and the right eyepiece is composed of a lens 11 and a lens 12 . Wherein, the lens 9 is laminated on the lens 10 , and the lens 11 is laminated on the upper layer of the lens 12 . In the vertical direction, a gap of 2mm to 3mm is maintained between the lens 9 and the lens 10, and a gap of 2mm to 3mm is maintained between the lens 11 and the lens 12. And the lens 9 and the lens 11 are in the same plane, and the lens 10 and the lens 12 are in the same plane. Both lens 9 and lens 11 have five diopters of 0D, +3.D, +4.00D, +5.00D, and 6.00D respectively. Both the lens 10 and the lens 12 have five diopters of 0D, +0.25D, +0.50D, +0.75D, and +1.00D respectively. It can be obtained by linearly adding the diopters of the two lenses. The diopter of the lens group composed of lens 9 and lens 10 can vary within the range of 0D, +3.00D, +3.25D...+6.75D, +7.00D. The lens 11 and Similarly, the diopter of the lens group composed of the lenses 12 can also vary within the range of 0D, +3.00D, +3.25...+6.50D, +6.75D, +7.00D. The above diopters correspond to the degrees of myopia, respectively 0 degrees, 300 degrees, 325 degrees... 650 degrees, 675 degrees, 700 degrees. Therefore, in this embodiment, the diopter of the eyepiece can be adjusted by rotating the lens in the eyepiece to meet the needs of myopia with different degrees. During specific implementation, the monocular also can adopt 3-4 layers of multi-focal lenses to form.

In the left eyepiece and the right eyepiece, there is a gap of 2mm to 3mm between two adjacent lenses in the vertical direction, which can ensure the accuracy of the linear superposition of the diopters of the lenses.

In this embodiment, in the left eyepiece and the right eyepiece of the focus-adjustable lens group 1, each lens is connected to a gear, and the micro motor 2 is connected to each gear and drives the lens corresponding to the gear to rotate through the driving gear. In this way, the micro motor 2 can be used to drive the corresponding lens to turn into a proper position to complete self-focusing. In this embodiment, the micro-motor 2 is connected to the central control unit in the helmet, and the central control unit obtains the degree of myopia of the wearer through the input module, and then controls the micro-motor 2 to rotate the lens through gears to adjust the position of the left eyepiece in the self-adaptive adjustable focus lens group. diopter and the diopter of the right eyepiece to complete the self-focusing.

In the above embodiment, keeping the structure of the left eyepiece and the right eyepiece the same, and the mirrors in the corresponding positions in the left eyepiece and the right eyepiece are on the same plane, which can ensure the consistency of the operating rules when the micro motor 2 is adaptive to the degree of the eyepiece, and ensure the adjustment Focus accuracy. During specific implementation, the left eyepiece and the right eyepiece may also use lenses with different layers, or the left eyepiece and the right eyepiece may use different multi-focus lenses. For example, the left eyepiece can use a single-layer 9-focus lens, and the right eyepiece can use a 3-layer lens stack. The 3-layer lenses are: ordinary lens lens, 4-focus lens and 5-focus lens.

In this embodiment, the input module is a mobile phone or a computer connected to the helmet central control unit, or a human-computer interaction device arranged on the helmet shell 5 and connected to the central control unit. During specific implementation, the central control unit can be connected with a mobile phone or a computer via bluetooth, wired or wireless. In this embodiment, an infrared distance measuring sensor 3 is also included, which is connected to the central control unit and used to measure the distance between the helmet user and surrounding obstacles. In this way, after the central control unit obtains the obstacle information, it can remind the helmet user through the preset early warning device or the display screen, so as to prevent the user from colliding with surrounding objects due to loss of real vision during the experience process.

Referring to FIG. 5, this embodiment also includes a motion capture module, which is connected to the central control unit and used to capture the user's head motion and body motion. The central control unit judges the visual focus and movement direction of the helmet user based on the data captured by the motion capture module, so as to interact with the VR internal screen and operation page, and complete the operation instructions of social or game content. The motion capture module includes a gyroscope, a gravity sensor and an acceleration sensor.

In this embodiment, the display 4 is arranged in front of the helmet, and the 3D eyepiece 6 is fitted with the display 4 to ensure the viewing effect.

With reference to Fig. 1, Fig. 2, Fig. 5 in the present embodiment, helmet interior is provided with system board 7, and central control unit, gyroscope, gravity sensor, acceleration sensor are all integrated in system board 7, micromotor 2, display 4, infrared measurement The distance sensors 3 are all connected to the system board 7, and the system board 7 is connected to the power supply. Specifically, a 3D eyepiece 6 , an adjustable focus lens group 1 , a micro motor 2 , a gear, a display 4 , an infrared ranging sensor 3 , a system board 7 and a power supply are placed inside the housing 5 . The 3D eyepiece 6 adopts the Alver eyepiece, and the display adopts an OLED display.

In this embodiment, a memory and a speaker are also included. The memory is connected to the central control unit, the display 4 and the loudspeaker; the memory and the loudspeaker are connected to the power supply;

In this embodiment, the helmet uses the central control unit, memory, and display to display image content and transmits clear images to human eyes through the 3D eyepiece 6 and the adjustable focus lens group, and the speaker emits audio related to the image content.

In this embodiment, when the helmet is connected to a computer or a mobile phone, the image or video content on the computer or mobile phone can be displayed on the display, and the audio content can be sent out through the speaker, so as to meet the needs of users watching movies and playing games. entertainment needs.

In this embodiment, a headband 8 is installed on the helmet shell 5 , and the headband 8 is connected to both ends of the shell 5 and the middle part of the upper surface of the shell 5 . In this way, the setting of the headband is beneficial to reduce the volume and weight of the housing 5, and the headband can be flexibly adjusted to meet the needs of different users.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, any person familiar with the technical field within the technical scope disclosed in the present invention, according to the technical solution of the present invention Any equivalent replacement or change of the inventive concepts thereof shall fall within the protection scope of the present invention.

Claims (10)

1. A self-focusing VR helmet, characterized in that it comprises: an adjustable focus lens group (1) and a micro motor (2); The adjustable focus lens group (1) includes a left eyepiece and a right eyepiece, the left eyepiece contains one lens or is composed of at least two laminated lenses, and the right eyepiece contains one lens or is composed of at least two laminated lenses; There is at least one multifocal lens in the lenses of the left eyepiece, and the diopter of the left eyepiece can be adjusted by rotating the multifocal lens; at least one of the lenses of the right eyepiece is a multifocal lens, and the diopter of the right eyepiece can be adjusted by rotating the multifocal lens Adjustment; In the left eyepiece and the right eyepiece, each eyeglass is connected with a gear, and the micro motor (2) is connected with each gear and drives the eyeglass corresponding to the gear to rotate through the driving gear. 2. The self-focusing VR helmet according to claim 1, characterized in that, in the left eyepiece and the right eyepiece, each lens has 5-9 focal points respectively. 3. The self-focusing VR helmet according to claim 1, wherein the left eyepiece and the right eyepiece have the same structure, and the mirrors at the corresponding positions in the left eyepiece and the right eyepiece are on the same plane. 4. The self-focusing VR helmet according to claim 1, wherein, in the left eyepiece and the right eyepiece, a gap of 2 mm to 3 mm is maintained between two adjacent lenses in the vertical direction. 5. The self-focusing VR helmet according to any one of claims 1 to 4, further comprising an input module, the input module is connected to the central control unit of the helmet, and the central control module is used to obtain The lens group adjusts the target control micromotor (2) to adjust the lenses in the left eyepiece and the right eyepiece. 6. The self-focusing VR helmet as claimed in claim 5, wherein the input module is a mobile phone or a computer connected to the helmet central control unit, or is arranged on the helmet shell (5) and connected with the central control unit human-computer interaction device. 7. The self-focusing VR helmet according to claim 5, further comprising an infrared distance measuring sensor (3), which is connected with the central control unit and used to measure the distance between the helmet user and surrounding obstacles. 8. The self-focusing VR helmet as claimed in claim 7, further comprising a motion capture module, which is connected to the central control unit and used to capture user head movements and body movements; the central control unit is used to The data captured by the motion capture module determines the visual focus and movement direction of the helmet user; further, the motion capture module includes a gyroscope, a gravity sensor, and an acceleration sensor. 9. The self-focusing VR helmet as claimed in claim 8, wherein a system board (7) is arranged inside the helmet, and the central control unit, gyroscope, gravity sensor, and acceleration sensor are all integrated in the system board (7), Both the micro motor (2) and the infrared ranging sensor (3) are connected with the system board (7). 10. The self-focusing VR helmet as claimed in claim 1, characterized in that, the 3D eyepiece (6) adopts the Alver eyepiece.