Abstract: An optical system affixed to an electronic apparatus is provided, including a first optical module, a second optical module, and a third optical module. The first optical module is configured to adjust the moving direction of a first light from a first moving direction to a second moving direction, wherein the first moving direction is not parallel to the second moving direction. The second optical module is configured to receive the first light moving in the second moving direction. The first light reaches the third optical module via the first optical module and the second optical module in sequence. The third optical module includes a first photoelectric converter configured to transform the first light into a first image signal.

Abstract: The disclosure provides a micro-speaker device including a yoke with a flat bottom plate and a sidewall perpendicular to the bottom plate, a magnet arranged on the yoke, a voice coil arranged around the magnet, a first washer arranged on the magnet, a second washer combined with the sidewall of the yoke, and a drum paper directly connected to an upper surface of the second washer. The yoke, the second washer and the drum paper define a closed space.

Abstract: The invention discloses a sound box structure including a speaker unit and a sound box housing. The speaker unit is embedded and fixed in an installation recess of the sound box housing. The sound box housing has a first side and a second side opposite to the first side, and the height of the sound box housing on the first side is greater than the height of the sound box housing on the second side. The height of the sound box housing gradually decreases from the first side to the second side. The width of the sound box housing between the first side and the second side is less than or equal to the width of the speaker unit.

Abstract: A micro-speaker includes a frame body, a diaphragm on the frame body, a magnetic structure and a voice coil in the frame body. An upper end of the voice coil is fixed to the diaphragm. The magnetic structure is arranged under the voice coil. A voice coil balancing system is provided in the frame body, which is composed of two symmetrically arranged dampers, which are respectively arranged under two ends of a long axis of the voice coil and fixed with glue. Each of the dampers is made of a flexible circuit board, including a first end, a second end and a cantilever connecting the first end and the second end. A ratio of a length L of the cantilever to a distribution distance D of the cantilever is between 2-15.

Abstract: A micro-speaker includes a frame body, a diaphragm arranged on the frame body, a magnetic structure and a voice coil arranged in the frame body. An upper end of the voice coil is fixed to the diaphragm. The magnetic structure is arranged under the voice coil. A voice coil balancing system is provided in the frame body, which is composed of two symmetrically arranged dampers and two symmetrically arranged elastic members, which are paired and respectively arranged at mounting portions under two opposite ends of a long axis of the frame body and fixed with glue. Each of the two dampers is made of a flexible circuit board, including a first end, a second end and a cantilever connecting the first end and the second end. A ratio of a length L of the cantilever to a distribution distance D of the cantilever is between 2-15.

Abstract: A micro-speaker includes a frame body, a diaphragm arranged on the frame body, a magnetic structure and a voice coil arranged in the frame body. An upper end of the voice coil is fixed to the diaphragm. The magnetic structure is arranged under the voice coil. A monolithic, one-piece voice-coil balancing system is fixed under the frame body. The monolithic, one-piece voice coil balancing system is composed of two symmetrically arranged dampers connected to an integrally formed support frame. The two dampers and the support frame are made of a flexible circuit board. Each of the two dampers comprises a first end, a second end and a cantilever connecting the first end and the second end. A ratio of a length L of the cantilever to a distribution distance D of the cantilever is between 2-15.

Abstract: The present disclosure provides a surround element, distortion-reducing drum paper, and a loudspeaker, and relates to the technical field of loudspeakers. The surround element is provided with an anti-distortion structure, and the anti-distortion structure includes at least one convex arc and at least one concave arc. The convex arc and the concave arc are connected to each other in a radial direction. The convex arc and the concave arc have different arc radii. The disclosure greatly reduces the stiffness K of the drum paper with the change of the position of the voice coil, thereby achieving the effect of reducing sound distortion.

Abstract: A speaker device including a first speaker cover, a second speaker cover, a speaker housed by the first speaker cover and the second speaker cover, and a monolithic, one-piece vibration damping structure disposed between the first speaker cover and the second speaker cover. The first speaker cover and the second speaker cover are made of a first material, and the monolithic, one-piece vibration damping structure is made of a second material that is different from the first material.

Abstract: A speaker device including a first speaker cover, a second speaker cover, a speaker housed by the first speaker cover and the second speaker cover, and a monolithic, one-piece vibration damping structure disposed between the first speaker cover and the second speaker cover. The first speaker cover and the second speaker cover are made of a first material, and the monolithic, one-piece vibration damping structure is made of a second material that is different from the first material.