Abstract: The disclosed subject matter relates to a method of final assembly of a light projector module, including the steps of: providing a base plate, a light source on the base plate, and a micro-electro-mechanical-system (MEMS) scanning assembly, wherein the base plate has, between the light source and the MEMS scanning assembly, a mounting surface accessible at one side of the base plate; positioning a set of one or more lenses on the mounting surface and adjusting the position of the one or more lenses of the set while the light source is emitting and at least one light beam projected by the light projector module is monitored in a display area; and mounting the one or more lenses of the set in the adjusted position fixedly on the base plate.

Abstract: The disclosed subject matter relates to a light projector module, comprising: a base plate, a light source on one side of the base plate, a micro-electro-mechanical-system (MEMS) scanning assembly on the base plate, and a set of at least one lens mounted on the one side of the base plate between the light source and the MEMS scanning assembly, wherein the MEMS scanning assembly has an arm mounted on and extending from the other side of the base plate, a scanning mirror being movably mounted on the arm and facing the base plate, and wherein a light guide is mounted on the base plate or the arm for directing the at least one light beam from the lens set on the one side to the scanning mirror on the arm extending from said other side of the base plate.

Abstract: An electrodynamic actuator (2a . . . 2l) is disclosed, which is designed to be connected to a sound emanating structure (3) and which comprises a coil arrangement (4) with at least one voice coil (5, 6) and a magnet system (7a, 7l), comprising an annular peripheral magnet system part (8a, 8l) and a center magnet system part (9a, 9l) with the coil arrangement (4) in-between. Further on, the electrodynamic actuator (2a . . . 2l) comprises a spring arrangement (15), which couples the peripheral magnet system part (8a, 8l) to the center magnet system part (9a, 9l) and allows a relative movement between the same in an excursion direction parallel to a coil axis (C). The center magnet system part (9a, 9l) comprises a center magnet (11) and at least one plate (12a . . . 13l) adjoining said center magnet (9a, 9l) in the excursion direction, wherein the at least one plate (12a . . . 13l) comprises a collar (14a . . . 14l?) on its outer edge, which faces away from the center magnet (11).

Abstract: A light projector module comprises a base plate with two opposite sides both extending in a longitudinal and a transverse direction, a light source mounted on one side of the two opposite sides for transmitting a light beam in a transmission plane that is perpendicular to the two opposite sides and parallel to the longitudinal direction, a micro-electro-mechanical-system (MEMS) scanning assembly having an arm which is mounted on and extends from the other side of the two opposite sides and having a scanning mirror which is movably mounted on the arm for scanning the light beam over a display area, and a light guide mounted on the base plate or the arm for guiding the light beam from the light source towards the scanning mirror. The light guide is configured to guide the light beam in a guiding plane that is parallel to the longitudinal direction.

Abstract: The disclosed subject matter relates to a method of manufacturing a light projector module, comprising the steps of: providing a base plate, a light source on the base plate, and a micro-electro-mechanical-system (MEMS) scanning assembly, wherein the base plate has, between the light source and the MEMS scanning assembly, a mounting surface accessible at one side of the base plate; positioning a set of one or more lenses on the mounting surface and adjusting the position of the one or more lenses of the set while the light source is emitting and at least one light beam projected by the light projector module is monitored in a display area; and mounting the one or more lenses of the set in the adjusted position fixedly on the base plate.

Abstract: The disclosed subject matter relates to a light projector module, comprising: a base plate, a light source on one side of the base plate, a micro-electro-mechanical-system (MEMS) scanning assembly on the base plate, and a set of at least one lens mounted on the one side of the base plate between the light source and the MEMS scanning assembly, wherein the MEMS scanning assembly has an arm mounted on and extending from the other side of the base plate, a scanning mirror being movably mounted on the arm and facing the base plate, and wherein a light guide is mounted on the base plate or the arm for directing the at least one light beam from the lens set on the one side to the scanning mirror on the arm extending from said other side of the base plate.

Abstract: A frameless audio transducer for mobile applications is provided. The invention relates to an audio transducer realized as speaker to transduce an electrical audio signal into acoustic sound or realized as receiver to transduce an acoustic sound into an electrical audio signal, which audio transducer is realized without a frame to align and fix the other parts of the audio transducer. The frameless audio transducer further includes coil lead support structures to reduce stress on the coil leads during operation.

Abstract: A new audio transducer for mobile devices having a collar with side openings that provide side venting to a back volume within an enclosure. The side openings eliminate the need for a typical frame and back vents thereon, which leads to a smaller size speaker. Each of the side openings have a maximum size less than the size of an adsorber material, which prevents the adsorber material coming into contact with the magnets, coil, and membrane of the speaker. The side openings and the size thereof also permit the enclosure to be directly filled with an adsorber material. The direct filling of the adsorber leads to more even and complete distribution of the adsorber within the back volume, which, in turn, improves sound quality of the speaker.

Abstract: A frameless audio transducer for mobile applications is provided. The invention relates to an audio transducer realized as speaker to transduce an electrical audio signal into acoustic sound or realized as receiver to transduce an acoustic sound into an electrical audio signal, which audio transducer is realized without a frame to align and fix the other parts of the audio transducer. The frameless audio transducer further includes coil lead support structures to reduce stress on the coil leads during operation.

Abstract: A speaker and method for making the same are provided. The speaker includes a permanent magnet and a coil disposed about a first axis around the permanent magnet, the coil being configured to move along the first axis. The speaker further includes a membrane attached to a top surface of the coil and a stabilizer contacting at least one of an internal surface, an external surface, and a bottom surface of the coil, and configured to limit movement of the coil relative to a second axis perpendicular to the first axis.

Abstract: A speaker and method for making the same are provided. The speaker includes a permanent magnet and a coil disposed about a first axis around the permanent magnet, the coil being configured to move along the first axis. The speaker further includes a membrane attached to a top surface of the coil and a stabilizer contacting at least one of an internal surface, an external surface, and a bottom surface of the coil, and configured to limit movement of the coil relative to a second axis perpendicular to the first axis.

Abstract: A new audio transducer for mobile devices having a collar with side openings that provide side venting to a back volume within an enclosure. The side openings eliminate the need for a typical frame and back vents thereon, which leads to a smaller size speaker. Each of the side openings have a maximum size less than the size of an adsorber material, which prevents the adsorber material coming into contact with the magnets, coil, and membrane of the speaker. The side openings and the size thereof also permit the enclosure to be directly filled with an adsorber material. The direct filling of the adsorber leads to more even and complete distribution of the adsorber within the back volume, which, in turn, improves sound quality of the speaker.

Abstract: A new audio transducer for mobile devices, in particular for a micro speaker, having a coil assembly having a coil, a pair of leads extending from the coil, and a flexible printed circuit having a pair of contact pads to which the leads are directly electrically connected. An advantage of this new speaker is the reduced number of electrical connections between the leads of the coil and the driver of the coil. This helps to reduce the number and size of the parts of the micro speaker and aids in increasing sound quality and durability of the speaker.

Abstract: A cable management device (110), the cable management device (110) comprising a casing (111) having a first guiding opening (112) through which a first cable (114) connected to a first electric member (116) is guidable, having a second guiding opening (113) through which a second cable (115) connected to a second electric member (117) is guidable, and having an accommodation chamber (400) for accommodating at least the first electric member (116), and a cover element (118) being movably mounted on the casing (111) to selectively expose or cover the accommodation chamber (400).

Abstract: An adapter (3, 3?, 3?) for a loudspeaker (2) is disclosed, wherein the loudspeaker (2) is provided to be used in free space. The adapter (3) comprises means to provide an acoustic impedance on the backside (b) of the loudspeaker (2) in such a way, that an adaptation of the loudspeaker function from a free-space operation mode to an on-the-car or in-the-car operation mode is achieved.

Abstract: An in-ear headphone (1) comprising an elastic sealing part (2) and a solid sealing part (3) for sealing an ear cavity (b) against an outside region (c) is disclosed, wherein said solid sealing part (3) comprises at least one damping vent (4) interconnecting the ear cavity (b) and the outside region (c), and wherein said damping vent (4) forms an acoustic friction.

Abstract: In an electroacoustic transducer (1), an annular shaped magnet system (14) is provided, enclosing an inner space (22), in which inner space (22) an integrated circuit (31) is accommodated, with the aid of which integrated circuit (31) an electrical signal to be sent to a moving coil (29) of transducer (1) can be amplified.

Abstract: In an electroacoustic transducer (1), an annular shaped magnet system (14) is provided, enclosing an inner space (22), in which inner space (22) an integrated circuit (31) is accommodated, with the aid of which integrated circuit (31) an electrical signal to be sent to a moving coil (29) of transducer (1) can be amplified.