This invention relates to a compact electro-acoustic transducer (10) to be used in the ear hole which prevents oppressive and inharmonious sensations to the auricle (A) when used and also prevents the deterioration of the reproduced sound quality. To do this, according to this invention, the electro-acoustic transducer (10) is formed of an outer casing (30) which houses therein an electro-acoustic transducer element (20), is shaped in size to be engagable with the concave portion of the auricle (A) and supported at least two points by one part of the auricle (A) when engaged with the concave portion of the auricle (A) and of a cord supporting member (50) extended from the outer casing (30) to be contact with the outer surface of the auricle (A) at a lower position than the respective supportion positions of the outer casing (30).
A headphone includes a pair of housing members into which speaker units and diaphragms are accommodated, protector members having sound radiating portions on which a plurality of sound radiating apertures are bored and respectively provided on the pair of housing members at their sound radiation sides from which sound is radiated by a vibration of the diaphragms, and supporting members for supporting the housing members within a cavum concha of an auricle of a listener's ear so that the sound radiating portion is opposed to the entrance of an external auditory meatus in the auricle of the listener's ear, wherein the housing member has a concave portion that is engaged with one portion of the auricle of the listener's ear when the housing member is fitted into the auricle of the listener's ear.
An earplug type earphone without impulse noise and surroundings blockade includes an earphone housing having a sound chamber inside thereof and a loudspeaker mounted therein, wherein a plurality of sound outlet meshes is provided on the front end of the earphone housing. A proper distance is given between the front end of the earphone housing and the loudspeaker mounted therein. A plurality of sound inlet meshes is provided on and encircled the earphone housing within the proper distance. The lower impulse noise output end with respect to two output ends of the loudspeaker is arranged to face to the sound outlet meshes. Therefore, the earphone can prevent not only the impulse noise directly impact to the middle ear but also the damage of the middle ear and the cause of conductive hearing loss.
An earphone for use with audio reproduction devices. The earphone includes a housing, shaped to be retained in the concha cavity of the human ear, having an elongated portion shaped to fit between the tragus and antitragus of the ear, an audio transducer contained within the housing, a device for providing an electric signal to the audio transducer and a hollow tubular guide member attached to the housing such that when the elongated portion of the housing is inserted between the tragus and the antitragus of a human ear, the hollow tubular guide member extends into the external auditory meatus of the ear.
5222151 - Earphone - Owned by Matsushita Electric Industrial Co., Ltd. (Osaka,JP)
An earphone has a case housing an electroacoustic transducer, the case being adapted to be put in the concha of the auricle of an ear. The case is of an elliptical shape so that it can snugly fit in the concha without under pressure imposed on the ear.
An ear piece transducer having a housing incorporating therein an electroacoustic transducer element, the housing being inserted into a concave portion of an auricle, and a ring member having resiliency sufficient to enable it to be attached to the outer peripheral portion of the housing, the ring member being formed so as to be thickest in one radial direction.
