Abstract: An object distance adjusting apparatus includes a first adjustment mechanism, a second adjustment mechanism, and a third adjustment mechanism, the first adjustment mechanism being meshed with the second adjustment mechanism, and the second adjustment mechanism being meshed with the third adjustment mechanism. Rotation of the first adjustment mechanism drives the second adjustment mechanism to rotate, and rotation of the second adjusting mechanism drives the third adjusting mechanism to rotate. A rotation axis of the third adjustment mechanism is perpendicular to both a rotation axis of the first adjustment mechanism and a rotation axis of the second adjustment mechanism. A virtual reality device including the object distance adjusting apparatus is also disclosed.

Abstract: The present disclosure provides a voice collection device, comprising: a housing; a microphone assembly disposed inside the housing and including a microphone main body and a microphone circuit board; and a sealing structure disposed between the microphone assembly and an inner side of the housing and including a dust filter and a first adhesive layer. One side of the microphone circuit board is connected to the dust filter. The other side of the microphone circuit board is connected to the microphone main body. The microphone circuit board and the dust filter are bonded to the inner side of the housing. A sound hole is configured on the microphone main body. A first through-hole is configured at a position on the microphone circuit board corresponding to the sound hole. A second through-hole is configured at a position on the housing corresponding to the first through-hole.

Abstract: The present disclosure provides an electronic apparatus, a spatial positioning system and a method thereof. The electronic apparatus includes: a body having a central region and a peripheral region surrounding the central region; and a plurality of signal receiving components disposed in the peripheral region of the body. The signal receiving component includes a circuit board and a plurality of signal receiving devices located on the circuit board.

Abstract: A VR lens structure and a display device are provided. The VR lens structure includes a first lens and a second lens disposed opposite to each other. The first lens is provided with a first side surface and a second side surface which are disposed opposite to each other, and at least one of the first side surface and the second side surface is an aspheric surface. The second lens is a Fresnel lens, a smooth surface of the second lens is disposed proximal to the second side surface, and a Fresnel surface of the second lens is disposed farther away from the second side surface than the smooth surface.

Abstract: A virtual reality lens barrel assembly, a virtual reality device and a control method, belonging to the field of virtual reality technology is provided. The virtual reality lens barrel assembly includes a lens, a blocking mechanism and a lens barrel, the lens and the blocking mechanism are both located outside a first opening of the lens barrel, and a second opening of the lens barrel is configured to place a display assembly; and the blocking mechanism includes a through hole with a variable size, and an optical axis of the lens passes through a center of the through hole and the first opening.

Abstract: A device for adjusting a distance between lens tube assemblies, a head-mounted display device and a step-wise adjustment mechanism are provided. The device for adjusting the distance between the lens tube assemblies includes: a guide shaft configured to mount two lens tube assemblies, with the two lens tube assemblies slidable toward or away from each other; a pair of racks respectively arranged on the two lens tube assemblies; a pair of dial gears, each of which includes a gear portion engaged with the rack and a dial portion configured to drive the gear portion to rotate under an external force; and a pair of dial gear shafts configured to mount the pair of dial gears to a housing of a head-mounted display device where the two lens tube assemblies are located, with the dial gear rotatable relative to the dial gear shaft.

Abstract: The present disclosure provides a voice collection device, comprising: a housing; a microphone assembly disposed inside the housing and including a microphone main body and a microphone circuit board; and a sealing structure disposed between the microphone assembly and an inner side of the housing and including a dust filter and a first adhesive layer. One side of the microphone circuit board is connected to the dust filter. The other side of the microphone circuit board is connected to the microphone main body. The microphone circuit board and the dust filter are bonded to the inner side of the housing. A sound hole is configured on the microphone main body. A first through-hole is configured at a position on the microphone circuit board corresponding to the sound hole. A second through-hole is configured at a position on the housing corresponding to the first through-hole.

Abstract: A device for adjusting a distance between lens tube assemblies, a head-mounted display device and a step-wise adjustment mechanism are provided. The device for adjusting the distance between the lens tube assemblies includes: a guide shaft configured to mount two lens tube assemblies, with the two lens tube assemblies slidable toward or away from each other; a pair of racks respectively arranged on the two lens tube assemblies; a pair of dial gears, each of which includes a gear portion engaged with the rack and a dial portion configured to drive the gear portion to rotate under an external force; and a pair of dial gear shafts configured to mount the pair of dial gears to a housing of a head-mounted display device where the two lens tube assemblies are located, with the dial gear rotatable relative to the dial gear shaft.

Abstract: An object distance adjusting apparatus includes a first adjustment mechanism, a second adjustment mechanism, and a third adjustment mechanism, the first adjustment mechanism being meshed with the second adjustment mechanism, and the second adjustment mechanism being meshed with the third adjustment mechanism. Rotation of the first adjustment mechanism drives the second adjustment mechanism to rotate, and rotation of the second adjusting mechanism drives the third adjusting mechanism to rotate. A rotation axis of the third adjustment mechanism is perpendicular to both a rotation axis of the first adjustment mechanism and a rotation axis of the second adjustment mechanism. A virtual reality device including the object distance adjusting apparatus is also disclosed.

Abstract: A self-locking mechanism and an electronic device with the same are provided. The self-locking mechanism includes: a housing having a through hole and a dodge hole; an elastic member in the dodge hole, the elastic member being connected to a wall of the dodge hole and having a free end capable of swinging in a thickness direction of the housing; a first engaging member on the elastic member; a knob on an outer side of the housing and having one end passing through the through hole; a plurality of second engaging members on a side of the knob adjacent to the housing; wherein the first engaging member may be engaged with or disengaged from one of the second engaging members under an action of an elastic deformation of the elastic member as the knob rotates; and a driven member on an inner side of the housing and fixedly connected with the knob so as to be rotated under driving of the knob.