Abstract: The present disclosure discloses an earphone. The earphone may include a hook-shaped component, a connecting component, and a holding component. When the earphone is in a wearing state, the hook-shaped component may be configured to hang between a rear side of an ear of a user and a head of the user. The holding component may be configured to contact a front side of the ear. The connecting component may be configured to connect the hook-shaped component and the holding component and extend from the head to an outside of the head to cooperate with the hook-shaped component to provide the holding component with a pressing force on the front side of the ear.

Abstract: An earphone, including a sound production component; an ear-hook configured to place the sound production component near an ear canal without blocking an opening of the ear canal, at least a portion of the sound production component extends into a concha cavity; and a microphone assembly including a first microphone and a second microphone disposed in the sound production component or the ear hook, the sound production component or the ear hook includes a first sound hole and a second sound hole corresponding to the first microphone and the second microphone, respectively; wherein a projection of the first sound hole on a sagittal plane and a projection of the second sound hole on the sagittal plane have a first distance, a ratio of the first distance to a size of a projection of the sound production component on the sagittal plane along a major axis direction is 0.7-1.2.

Abstract: Processing chambers including at least one gas reservoir connected to and in fluid communication with the lid through a fast-switching valve and a gas reservoir line are described. Processing methods, for example, etching methods, using the processing chambers are also described.

Abstract: Disclosed is an open earphone, comprising a sound production component and an ear hook. The ear hook may include a first portion and a second portion connected in sequence. The first portion may be hung between the auricle of a user and the head of the user, the second portion may extend toward a front outer side of the auricle and connect the sound production component, and the sound production component may be located close to the ear canal but not block the opening of the ear canal; wherein the sound production component and the auricle may have a first projection and a second projection on a sagittal plane, respectively, a centroid of the first projection may have a first distance from a highest point of the second projection in a vertical axis direction, a ratio of the first distance to a height of the second projection in the vertical axis direction may be within a range of 0.25-0.

Abstract: A method for testing burning performance of a dark-colored cigarette using a dark-colored cigarette paper is provided. The dark-colored cigarette paper has a grayscale less than 255. The method includes: simulating, by a robotic arm, a cigarette smoking process and environment; acquiring, by a full-vision camera system, an image of a burn line and ash column region of the dark-colored cigarette; and analyzing a burning performance indicator of the dark-colored cigarette according to coordinate information of the burn line and ash column region. The method is based on a surface reflection characteristic of the dark-colored cigarette paper and a principle of optical reflection to light and highlight an edge of the dark-colored cigarette sample by a light source at a certain angle from a side. In this way, the method forms a chromatic aberration to localize the dark-colored cigarette sample, thereby testing the burning performance of the dark-colored cigarette sample.

Abstract: An earphone, including a sound production component; an ear-hook configured to place the sound production component near an ear canal without blocking an opening of the ear canal, at least a portion of the sound production component extends into a concha cavity; and a microphone assembly including a first microphone and a second microphone disposed in the sound production component or the ear hook, the sound production component or the ear hook includes a first sound hole and a second sound hole corresponding to the first microphone and the second microphone, respectively; wherein a projection of the first sound hole on a sagittal plane and a projection of the second sound hole on the sagittal plane have a first distance, a ratio of the first distance to a size of a projection of the sound production component on the sagittal plane along a major axis direction is 0.7-1.2.

Abstract: The present disclosure provides an open earphone comprising: a sound production component including a transducer and a housing accommodating the transducer; and an ear hook including a first portion of the ear hook and a second portion of the ear hook. The first portion of the ear hook is hung between an auricle and a head of a user, and the second portion of the ear hook extends towards a side of the auricle away from the head and connects with the sound production component to place the sound production component in a position near an ear canal but not blocking the ear canal, the housing and the first portion of the ear hook clamp the auricle of the user, and provide a clamping force in a range of 0.03 N to 1 N to the auricle of the user.

Abstract: An earphone comprises a sound production component and an ear hook including a first portion and a second portion connected in sequence. The first portion is hung between an auricle of a user and a head of the user, and the second portion extends toward a front outer side of the auricle and connects to the sound production component, so that the sound production component is worn at a position near an ear canal but does not block an opening of the ear canal. The sound production component and the auricle have a first projection and a second projection on a sagittal plane, respectively. A first distance between a centroid of the first projection and a highest point of the second projection in a vertical axis direction is within a range of 17 mm-43 mm, and an area of the first projection is within a range of 202 mm2-560 mm2.

Abstract: A speaker includes a diaphragm, a magnetic circuit component, a coil, and a bracket arranged around the magnetic circuit component. At least part of the coil is arranged in a magnetic gap formed by the magnetic circuit component. The coil drives the diaphragm to vibrate to generate sound after the coil is energized. The diaphragm includes a main-body region and a folded-ring region surround the main-body region. A first part of the bracket is connected to the folded ring region. A thickness of the first part of the bracket is within a range of 0.3 mm-3 mm. The thickness of the first part is a minimum distance between a connection region and an attaching region. The connection region is a region where the bracket and the folded-ring region connect. The attaching region is a region where the bracket directly attaches to the magnetic circuit component in a vibration direction of the diaphragm.

Abstract: The present disclosure provides an earphone comprising a sound production component and an ear hook. In a wearing state, the ear hook is configured to place the sound production component at a position near an ear canal but not blocking the ear canal. An inner contour of the ear hook's projection on a user's sagittal plane includes a first curve having an extremum point in a first direction. The first direction is perpendicular to a long-axis direction of a projection of the sound production component on the sagittal plane. The extremum point is located behind a projection point of an upper vertex of the ear hook on the sagittal plane, and the upper vertex is a highest point of an inner contour of the ear hook along the user's vertical axis. An inclination angle of the long-axis direction relative to a horizontal direction is within a range of 13°-21°.

Abstract: The present disclosure provides an open earphone comprising: a sound producer including a transducer and a housing accommodating the transducer; and an ear hook, the ear hook including a first portion and a second portion; wherein the ear hook and the sound producer form a first projection on a first plane, the first projection including an outer contour, a first end contour, an inner contour and a second end contour, and the outer contour, the first end contour, the second end contour and a tangent segment connecting the first end contour and the second end contour jointly define a first closed curve.

Abstract: The present disclosure provides an earphone, comprising a sound production component and an ear hook configured to place the sound production component near an ear canal but not blocking an ear canal opening. An inner contour of a projection of the ear hook on a user's sagittal plane includes a first curve having an extremum point in a first direction. The first direction is perpendicular to a long-axis direction of a projection of the sound production component. The extremum point is located behind a projection point of an upper vertex of the ear hook on the sagittal plane. The upper vertex is a highest point of an inner contour of the ear hook along the user's vertical-axis. A housing of the sound production component and a first portion of the ear hook clamp the user's auricle and provide a clamping force of 0.03 N?1 N to the auricle.

Abstract: One or more embodiments of the present disclosure provide a speaker. The speaker may include a diaphragm, a magnetic circuit component, a coil connected to the diaphragm, a bracket arranged around the magnetic circuit component, and a housing. At least part of the coil may be arranged in a magnetic gap formed by the magnetic circuit component, and the coil may drive the diaphragm to vibrate to generate sound after the coil is energized. The diaphragm may include a main-body region and a folded-ring region surround the main-body region. The bracket may be connected to a portion of the folded ring region away from the main-body region, and a plurality of air holes may be provided on the bracket. A pressure relief hole may be provided on the housing. Sound from a back surface of the diaphragm may be transmitted to the pressure relief hole through the plurality of air holes, and the plurality of air holes may at least include a first air hole and a second air hole.

Abstract: An earphone which includes a sound production component and an ear hook may be provided. The sound production component includes a transducer and a housing accommodating the transducer. A first portion of the ear hook is hung between an auricle and the head of a user, and a second portion extends toward a side of the auricle away from the head and is connected to the sound production component. In a non-wearing state, the ear hook and the sound production component form a first projection on a first plane; in a wearing state, the ear hook and the sound production component form a second projection on a sagittal plane of a human body. Each of the first projection and the second projection includes an outer contour, a first end contour, an inner contour, and a second end contour.

Abstract: An earphone, including a sound production component; an ear-hook configured to place the sound production component near an ear canal without blocking an opening of the ear canal, at least a portion of the sound production component extends into a concha cavity; and a microphone assembly including a first microphone and a second microphone disposed in the sound production component or the ear hook, the sound production component or the ear hook includes a first sound hole and a second sound hole corresponding to the first microphone and the second microphone, respectively; wherein a projection of the first sound hole on a sagittal plane and a projection of the second sound hole on the sagittal plane have a first distance, a ratio of the first distance to a size of a projection of the sound production component on the sagittal plane along a major axis direction is 0.7-1.2.

Abstract: Disclosed is an open earphone, comprising a sound production component and an ear hook. The ear hook may include a first portion and a second portion connected in sequence. The first portion may be hung between the auricle of a user and the head of the user, the second portion may extend toward a front outer side of the auricle and connect the sound production component, and the sound production component may be located close to the ear canal but not block the opening of the ear canal; wherein the sound production component and the auricle may have a first projection and a second projection on a sagittal plane, respectively, a centroid of the first projection may have a first distance from a highest point of the second projection in a vertical axis direction, a ratio of the first distance to a height of the second projection in the vertical axis direction may be within a range of 0.25-0.

Abstract: The present disclosure provides an open earphone comprising: a sound production component including a transducer and a housing accommodating the transducer and an ear hook. In a wearing state, a portion of the ear hook is hung between an auricle and a user's head, and the other portion of the ear hook extends towards a side of the auricle away from the head and connects to the sound production component to place the sound production component in a position near an ear canal but not blocking the ear canal. The housing is provided with a sound outlet on an inner side surface towards the auricle for guiding a sound generated by the transducer out of the housing and to the ear canal, and a ratio of an area of the sound outlet to an area of the inner side surface is between 0.015 and 0.25.

Abstract: The earphone includes a sound generation component including a transducer; at least a portion of the sound generation component extending into a concha cavity of a user; and an ear hook including a first portion and a second portion, the second portion being connected to the first portion, and being connected to the sound generation component to place the sound generation component at a position near an ear canal without blocking an opening of the ear canal. The sound generation component has a first projection on a sagittal plane, and the auricle has a second projection on the sagittal plane. A centroid of the first projection may have a first distance from a highest point of the second projection in a vertical axis direction. A ratio of the first distance to a height of the second projection in the vertical axis direction may be in a range of 0.35-0.6.

Abstract: An earphone, including a sound production component; an ear-hook configured to place the sound production component near an ear canal without blocking an opening of the ear canal, at least a portion of the sound production component extends into a concha cavity; and a microphone assembly including a first microphone and a second microphone disposed in the sound production component or the ear hook, the sound production component or the ear hook includes a first sound hole and a second sound hole corresponding to the first microphone and the second microphone, respectively; wherein a projection of the first sound hole on a sagittal plane and a projection of the second sound hole on the sagittal plane have a first distance, a ratio of the first distance to a size of a projection of the sound production component on the sagittal plane along a major axis direction is 0.7-1.2.