Abstract: To provide an audio processing device including a configuration in which a different microphone is used for generation of directivity depending on a frequency band.

Abstract: A sleeve for optical communication and method for manufacture for the sleeve for optical communication, for which withdrawal force for ferrules, which are generally used in the technical field of optical communication, or connection loss between ferrules is a predetermined value, and for which manufacturing steps are reduced so as to allow reduction of manufacturing cost. The invention is made by press-molding ceramic feedstock, which after cold isostatic pressing and sintering are performed thereto, and is made so that an inner circumferential surface, of a through-hole for inserting a ferrule formed on the length-direction of the axis, has a sintered state.

Abstract: A sleeve for optical communication and method for manufacture for the sleeve for optical communication, for which withdrawal force for ferrules, which are generally used in the technical field of optical communication, or connection loss between ferrules is a predetermined value, and for which manufacturing steps are reduced so as to allow reduction of manufacturing cost. The invention is made by press-molding ceramic feedstock, which after cold isostatic pressing and sintering are performed thereto, and is made so that an inner circumferential surface, of a through-hole for inserting a ferrule formed on the length-direction of the axis, has a sintered state.

Abstract: An illuminating device for imaging apparatus includes: a light source; plural batteries that supply power to the light source; plural detection voltage generating units that are provided with respect to each battery and generate detection voltages from output voltages of the batteries; a voltage monitoring unit that is supplied with the plural detection voltages, respectively, and determines whether the output voltages of the batteries are equal to or less than a predetermined specified value or not with respect to each battery; and a control unit that turns on/off the supply of the power to the light source based on a determination result of the voltage monitoring unit, wherein detection switches that turn on/off the supply of the detection voltages from the respective detection voltage generating units to the voltage monitoring unit based on the control by the control unit are provided with respect to each battery.

Abstract: An illuminating device for imaging apparatus includes: a light source; plural batteries that supply power to the light source; plural detection voltage generating units that are provided with respect to each battery and generate detection voltages from output voltages of the batteries; a voltage monitoring unit that is supplied with the plural detection voltages, respectively, and determines whether the output voltages of the batteries are equal to or less than a predetermined specified value or not with respect to each battery; and a control unit that turns on/off the supply of the power to the light source based on a determination result of the voltage monitoring unit, wherein detection switches that turn on/off the supply of the detection voltages from the respective detection voltage generating units to the voltage monitoring unit based on the control by the control unit are provided with respect to each battery.

Abstract: A photosemiconductor device mounting receptor, comprising a main body (11) having an insertion hole (15), a sleeve (12) having an optical connector insertion hole (14), and a sleeve supporter (13) for supporting securely the sleeve (12), wherein the sleeve (12) is positioned in the main body (11), and the insertion hole (15) of the main body (11) and the optical connector insertion hole (14) of the sleeve (12) are arranged to be on the same optical axis. The main body (11) and the sleeve supporter (13) are integrally connected by molding, and the main body (11) of a synthetic resin obtained by this molding is formed to cover the circumference of the sleeve (12) supported by the sleeve supporter (13).