Abstract: A magnetic attraction type cord winding module, comprising a rotary wheel (9) on which a cord (10) is wound and a stop button (4) working cooperatively with the rotary wheel (9). The cord winding module further comprises at least one pair of magnet blocks, and the at least one pair of magnet blocks comprise a first magnet (3) disposed on the stop button (4) and a second magnet (5) disposed on the rotary wheel (9). The stop button (4) automatically brakes the rotary wheel (9) under the action of an attractive force or a repulsive force of the magnet blocks and prevents the rotary wheel (9) from retracting the cord (10). The magnet block disposed on the stop button (4) does not protrude from the upper surface of the stop button (4), and the magnet block disposed on the rotary wheel (9) is flattened.

Abstract: Provided are an eyepiece and a head-mounted display device, where the eyepiece includes: a positive lens and a negative lens arranged sequentially and coaxially; where a light incident surface of the positive lens is a planar Fresnel surface, and a light emergent surface of the positive lens is a convex surface; a light incident surface of the negative lens is a concave surface, and a light emergent surface of the negative lens is a convex surface; and the light to be observed is incident on the light incident surface of the negative lens and refracted by the negative lens to the light incident surface of the positive lens, and enters human eyes after being refracted by the positive lens. The eyepiece and head-mounted display device provided by the present disclosure realize an ultrathin eyepiece optical system and facilitate a miniaturized and lighter head-mounted display device.

Abstract: A pull-out type cord winding module, comprising a rotary wheel (6) which a cord (7) is wound on and which is connected with a coil spring (5), and a stopper mechanism working cooperatively with the rotary wheel (6) and including a functional rail, a ball (3) and a rolling assisting device. The functional rail comprises a locking rail, a communicating rail (25) and annular rails (21, 22) which are connected, groove-shaped and arranged around an outer circumference of the rotary wheel (6). A guide groove (91) is provided on the rolling assisting device, and two ends of the guide groove (91) are located at the upper and lower sides of the outer circumference of the rotary wheel (6) respectively. The guide groove (91) cooperates with the functional rail to hold the ball (3). When the rotary wheel (6) rotates, the ball (3) rolls in the functional rail to lock or unlock rotation of the rotary wheel (6).

Abstract: The present disclosure discloses a method for reproducing an object in a 3D scene and a virtual reality head-mounted device. The method comprises: simultaneously gathering at least two channels of video stream data in real time at different angles for an object to be displayed by using at least two image gatherers, wherein first field angles of the image gatherers at least partially overlap in space, and the first field angles are a horizontal field angle, a vertical field angle or a diagonal field angle; identifying out a shape of the object varying in real time from the at least two channels of video stream data; according to the shape of the object varying in real time, obtaining a corresponding object motion trajectory; and processing the shape of the object varying in real time and the corresponding object motion trajectory into a 3D image and in real time superposition-displaying the 3D image into the 3D scene.

Abstract: The present disclosure discloses a lens shielding mechanism, a lens shielding method and a head-mounted display using the lens shielding mechanism. The lens shielding mechanism is used for shielding an area exposed from a front housing (21) due to leftward and rightward movements of a lens (22). The lens shielding mechanism comprises: a group of shielding sheets (23) having a certain width. The group of shielding sheets (23) is arranged on left and right sides of the lens (22) and is fixedly connected to the lens (22). When the lens (22) moves leftwardly and rightwardly, the lens drives the group of shielding sheets (23) to move, and an area exposed from the front housing (21) due to the leftward and rightward movements of the lens (22) is shielded by the group of shielding sheets (23). The lens shielding mechanism has a good shielding effect and a simple structure, and occupies a small space.

Abstract: A sliding-type locking buckle comprises a casing and a locking buckle body. The casing comprises an upper casing, a lower casing, and an inner cavity. The locking buckle body comprises an upper body, a lower body, and a compression spring. The upper casing is provided with an upper sliding slot. The inner wall of the upper casing is provided with a plurality of sawteeth along the length direction of the upper sliding slot. The lower body is located in the inner cavity. The top of the upper body protrudes out of the upper sliding slot. A lateral surface of the upper body is provided with a limiting protrusion. The limiting protrusion is provided with a sawtooth portion.

Abstract: The present disclosure discloses a system and a method for inputting a gesture in a 3D scene. The system comprises a gesture acquiring unit configured to simultaneously acquire at least two channels of video stream data in real time at different angles for a user's gesture; a gesture recognizing unit configured to recognize a gesture shape varying in real time from the at least two channels of video stream data; a gesture analyzing unit configured to analyze the gesture shape varying in real time to obtain corresponding gesture motion; and a gesture displaying unit configured to process the gesture motion into a 3D image and display the 3D image in the 3D scene in real time. The technical solutions of the present disclosure can display the user's real gesture in the 3D scene, thereby enhancing the real effect of the system and improving the user's usage experience.

Abstract: A method and apparatus for connecting a Bluetooth device are disclosed. The method includes: setting a connecting cycle according to an obtained count of historical disconnections to a target Bluetooth device; and initiating establishment of a Bluetooth connection to the target Bluetooth device according to the connection cycle when the Bluetooth connection to the target Bluetooth device is disconnected. According to the present disclosure, a time interval that the Bluetooth device initiates the establishment of a Bluetooth connection after the Bluetooth connection is disconnected can be adjusted according to the application scene of the Bluetooth device, which can effectively save power for the device, prolong the runtime of the device, improve the user experience, and effectively guarantee the quality of communication.

Abstract: A connecting mechanism includes a body and a detachable part connected with the body. The body includes a casing and a sliding component. The casing has an insertion hole for insertion of the detachable part. The sliding component is in sliding connection with the casing, and the sliding component has access holes and clamping holes in communication therewith. The detachable part includes insertion pieces. When the sliding component slides from a first position to a second position, the access holes are opposite to the insertion hole, and the insertion pieces extend into the access holes through the insertion hole. When the sliding component slides from the second position to the first position, the insertion pieces enter the clamping holes from the access holes, thereby locking the detachable part. The assembly and disassembly of the detachable part and the body are realized through the operation of the sliding component without tools.

Abstract: A virtual reality helmet (300) and a virtual reality system (500) are disclosed. The virtual reality helmet comprises a helmet body (100) and an optical system (110), and the optical system is provided within the helmet body. The helmet body is provided with a detachable display screen (200). In operation, the display screen is snap-fitted to the helmet body, connects to an external video playing device (400) via a video transmission line, and displays the video data played by the video playing device. The optical system is configured to image a light emitted by the display screen. The video playing device is not attached to the helmet body, which reduces the weight worn on the head, and long-term usage does not easily cause neck fatigue.

Abstract: Some embodiments of the present disclosure provide a prismatic AR display device comprising an LCOS display chip, a polarization beam splitter (PBS), a double cemented lens, a first single lens and a beam splitting prism sequentially arranged along a first axis, and LCOS lighting apparatus arranged on a second axis perpendicular to the first axis and is close to the PBS. A negative lens in the double cemented lens is close to the PBS, and a positive lens in the double cemented lens is close to the first single lens; a first light incident surface of the beam splitting prism is close to the first single lens, and an optical axis of the first light incident surface coincides with that of the first single lens; and an optical axis of a second light incident surface of the beam splitting prism is perpendicular to that of the first light incident surface.

Abstract: Provided are a display device and method. The device includes: a processor, a display screen component, and a half-transmitting and half-reflecting mirror. The display screen component includes a close-range display screen and a long-range display screen. A distance from the close-range display screen to the half-transmitting and half-reflecting mirror is shorter than a distance from the long-range display screen to the half-transmitting and half-reflecting mirror. The processor is used for sending a close-range image among an image to the close-range display screen for display and sending a long-range image among the image to the long-range display screen for display. The half-transmitting and half-reflecting mirror is used for reflecting and transmitting light emitted from the close-range display screen and light emitted from the long-range display screen. By implementing the embodiment of the scheme, the realistic effect of an image may be enhanced.

Abstract: The present disclosure provide a laser beam scanning display device and augmented reality (AR) glasses, comprising a focusing lens, a laser emitter located at a focal point of the focusing lens, a beam combiner, a micro-electromechanical assembly and a projection lens. The laser emitter emits trichromatic laser signals, which are irradiated into the beam combiner via the focusing lens. The beam combiner converges the trichromatic laser signals into a convergent laser signal and emits it to the micro-electromechanical assembly. The micro-electromechanical assembly scans the received convergent laser signal to generate a content to be displayed. In the above laser beam scanning display device, the content to be displayed, which is generated by the micro-electromechanical assembly, is displayed on the screen via the projection lens, which dispenses with any laser signal reflecting or transmitting means, thus reducing the volume of the device.

Abstract: There is provided in the present disclosure a head-mounted display device, including: a first positive lens, a second positive lens and a micro-display component arranged coaxially and sequentially, where a light incident surface of the first positive lens is close to a light emergent surface of the second positive lens, and a light incident surface of the second positive lens is close to the micro-display component; the light emergent surface of the second positive lens is a convex Fresnel surface, and the light incident surface of the first positive lens is a planar Fresnel surface. The head-mounted display device provided by the present disclosure can effectively enlarge the field angle and reduce the volume.

Abstract: The present disclosure discloses a voice remote controller and a power supplying method thereof. The voice remote controller comprises: a noise gathering module for gathering ambient noise at the periphery of the voice remote controller by using a sound aperture array; a sound-electricity converting module for converting the ambient noise gathered by the noise gathering module into an electrical signal; and an energy storing module for storing the electrical signal converted by the sound-electricity converting module as electric energy and supplying power to the voice remote controller. According to the present disclosure, ambient noise is gathered by a sound aperture array and converted into electricity used as the working energy, thereby avoiding battery replacing or frequent charging. When a voice function of a voice remote controller is turned off, all of the gathered ambient noise is converted into electricity, thereby improving the energy utilization rate.

Abstract: A connecting mechanism includes a body and a detachable part connected with the body. The body includes a casing and a sliding component. The casing has an insertion hole for insertion of the detachable part. The sliding component is in sliding connection with the casing, and the sliding component has access holes and clamping holes in communication therewith. The detachable part includes insertion pieces. When the sliding component slides from a first position to a second position, the access holes are opposite to the insertion hole, and the insertion pieces extend into the access holes through the insertion hole. When the sliding component slides from the second position to the first position, the insertion pieces enter the clamping holes from the access holes, thereby locking the detachable part. The assembly and disassembly of the detachable part and the body are realized through the operation of the sliding component without tools.

Abstract: A dual wireless earphones comprise two earphone bodies and a connecting cable assembly. The connecting cable assembly comprises a cable tube and two connectors fixedly connected to both ends of the cable tube respectively, one of the connectors is detachably connected to one of the earphone bodies, and the other connector is detachably connected to the other earphone body. In the dual wireless earphones according to the present disclosure, two earphone bodies are detachably connected by a connecting cable assembly, and when the dual wireless earphones are used, the two earphone bodies can be connected by the connecting cable assembly, thereby effectively avoiding the earphone bodies being dropped and lost when they are worn. Moreover, the user can choose whether to connect the two earphone bodies according to his preferences and usage scenarios, so the use of the dual wireless earphones is greatly facilitated.

Abstract: Provided are a three-dimensional image capturing device and a method. The device includes: a first lens module and a second lens module, and an adjustable mechanism connecting the first lens module and the second lens module respectively. The adjustable mechanism is capable of changing a lens interval between the first lens module and the second lens module; and a processing apparatus connected to the first lens module and the second lens module, configured to determine a capturing interval between the three-dimensional image capturing device and a target capturing object, determine a target lens interval corresponding to the capturing interval; control the adjustable mechanism to adjust an interval between the first lens module and second lens module to be the target lens interval, and capture a three-dimensional of the target capturing object by using first lens module and second lens module, which enlarges the capturing range of three-dimensional image capturing device.

Abstract: An adjustable head-mounted display comprises a head-mounted portion (1), a display portion (2) and a sound outputting portion (3). The display portion (2) comprises two legs (21) and a display (22), one end of each leg (21) is connected to corresponding end of the display (22), and the other end of each leg (21) is rotatably connected to an end of the head-mounted portion (1) on corresponding side. The sound outputting portion (3) comprises a left headphone and a right headphone, wherein the left headphone and the right headphone each comprises an ear cup (32), an ear cup bracket and a sound generator in the ear cup. The ear cup bracket is connected to an end of the head-mounted portion (1) on corresponding side, and the ear cup is connected to the ear cup bracket; and the head-mounted portion (1) is provided with a head-mounted portion length adjustment mechanism. By the present disclosure, the user can adjust the length upon his demand, and the universality will be improved.

Abstract: Embodiments of the present invention provide a head-mounted equipment. The head-mounted equipment includes an equipment body, an accessory and a connecting assembly implementing detachable connection between the accessory and the equipment body, where the connecting assembly is arranged on the accessory; the connecting assembly includes a buckle structure and a spring pressing structure. A clamping groove structure adapted to the buckle structure is provided on the equipment body. When the buckle structure is clamped into the clamping groove structure, the spring pressing structure contacts with the equipment body and applies an elastic force in a first direction to the equipment body. Under the action of the elastic force in the first direction, the buckle structure applies pressure in a second direction to the clamping groove structure; and the first direction is opposite to the second direction.