Abstract: A charge transfer device 1 has an P-type region, an N-type well provided to the surficial portion of the P-type region, and transfer electrodes having P-type conductivity, provided over the N-type substrate while placing an insulating film in between.

Abstract: Provided is an insertion type earphone, in which a receiver unit (12) is constituted to have a receiver body (50) (or a BA type receiver) housed in a casing (20). The receiver body (50) includes a housing (56) having a small hole (66a) formed to provide communication between a back space (CR) and the external space. The casing (20) is constituted to include a cylindrical frame (32) having a sound guide tube (16) at its leading end portion and a gasket (36) inserted from a root end portion and fixed in the cylindrical frame (32). The receiver body (50) is so inserted into and fixed in the gasket (36) as to isolate a sound releasing hole (64a) and the small hole (66a). In the gasket (36), a communication hole (36e) is formed to provide communication between the sound releasing hole (64a) and a sound way (16a) of the sound guide tube (16).

Abstract: A charge transfer device 1 has an P-type region, an N-type well provided to the surficial portion of the P-type region, and transfer electrodes having P-type conductivity, provided over the N-type substrate while placing an insulating film in between.

Abstract: To improve a transmission rate of an antireflection film, the antireflection film includes: a first silicon oxide film (2), which is formed on a silicon substrate (1); a polysilicon film (3), which is formed on the first silicon oxide film (2) to a thickness of 6 nm through 14 nm; and a second silicon oxide film (4), which is formed on the polysilicon film (3). The transmission rate of the antireflection film is further improved if a thickness of the first silicon oxide film (2) is set to 14 nm through 35 nm. When used in a photoelectric conversion element for such as a solid state image sensor and a photovoltaic generator, the antireflection film may enhance efficiency of photoelectric conversion.

Abstract: A charge coupled device is provided with: an output gate; a main CCD region operated in response to a set of clock signals; and an output region positioned between the output gate and the main CCD region and designed to transfer electric charges received from the main CCD region to the output gate. The main CCD region includes first and second transfer electrodes. The output region includes third and fourth transfer electrodes receiving clock signals which are phase-reversed from each other. The set of clock signals received by the main CCD region and the clock signals received by the output region are outputted from different driver circuits.

Abstract: The receiver unit includes a receiver body, a housing containing this receiver body, a cord connected to the receiver body, and a cord protector for protecting the cord. The cord protector is a plate-like member having a substantially rectangular shape, and includes an engaging portion and a semicircular portion. The cord protector is formed of soft material such as urethane rubber having Shore hardness of about A90, and its wall thickness is set to be 0.3 to 0.6 mm (0.5 mm, for example).

Abstract: A solid-state imaging apparatus includes a photoelectric conversion section generating a charge by photoelectric conversion; and a charge transfer section having first and second transfer electrodes arranged in parallel with each other in an output direction of a charge generated by the photoelectric conversion section and repeatedly transferring the charge between a semiconductor region underneath the first transfer electrode and a semiconductor region underneath the second transfer electrode obliquely to an array direction of the first and second transfer electrodes to output the charge.

Abstract: A charge transfer device 1 has an P-type region, an N-type well provided to the surficial portion of the P-type region, and transfer electrodes having P-type conductivity, provided over the N-type substrate while placing an insulating film in between.

Abstract: A charge coupled device is provided with; an output gate; a main CCD region operated in response to a set of clock signals; and an output region positioned between the output gate and the main CCD region and designed to transfer electric charges received from the main CCD region to the output gate. The main CCD region includes first and second transfer electrodes. The output region includes third and fourth transfer electrodes receiving clock signals which are phase-reversed from each other. The set of clock signals received by the main CCD region and the clock signals received by the output region are outputted from different driver circuits.

Abstract: In order to supply the optical fiber for attenuating optical signal enable the attenuation amount to become flat in wide wavelength scope, simultaneously adding at least two kinds of dopants for attenuating optical signal over the core and the cladding of the optical fiber. Then, properly adjusting the kind and the concentration of dopants for manufacturing the optical fiber 1 for attenuating optical signal; simultaneously adding the dopant enabling the absorption of optical signal to increase with the wavelength become long and the dopant enabling the absorption of optical signal to decrease with the wavelength become long. As the dopant, it is desired to select at least two kinds of transitional metals from Co, Ni, Cr, V, Fe, Mn, Tb and Tm. Further, as the doped area, it is desired to dope the 6 times of the center portion of the core from the center of the core.

Abstract: An illuminated switch includes a lens that is provided integrally with a converter on a surface opposing a light-emitting element disposed on a base constituting a switch body. The lens diffuses light emitted from the light-emitting element through the inner space of a coil spring urging a switch operating unit in the vertical direction. Moreover, a tilted surface is formed at an angle inclining towards the bottom surface of a hole below from the upper surface of the switch operating unit in the axial direction.

Abstract: The receiver unit includes a receiver body, a housing containing this receiver body, a cord connected to the receiver body, and a cord protector for protecting the cord. The cord protector is a plate-like member having a substantially rectangular shape, and includes an engaging portion and a semicircular portion. The cord protector is formed of soft material such as urethane rubber having Shore hardness of about A90, and its wall thickness is set to be 0.3 to 0.6 mm (0.5 mm, for example).

Abstract: An electronic device is configured so that a top housing, in which a receiver is incorporated, and a bottom housing, in which a microphone is incorporated, are connected by a positive terminal to each other, and that the housings support each other through the positive terminal. A circuit board is disposed on the positive terminal. The receiver is incorporated into the top housing. The microphone is incorporated into the bottom housing. These housings are connected by the positive terminal. The incorporation of components and the wiring there among can be facilitated.

Abstract: A solid-state imaging apparatus includes a photoelectric conversion section generating a charge by photoelectric conversion; and a charge transfer section having first and second transfer electrodes arranged in parallel with each other in an output direction of a charge generated by the photoelectric conversion section and repeatedly transferring the charge between a semiconductor region underneath the first transfer electrode and a semiconductor region underneath the second transfer electrode obliquely to an array direction of the first and second transfer electrodes to output the charge.

Abstract: An illuminated switch includes a lens that is provided integrally with a converter on a surface opposing a light-emitting element disposed on a base constituting a switch body. The lens diffuses light emitted from the light-emitting element through the inner space of a coil spring urging a switch operating unit in the vertical direction. Moreover, a tilted surface is formed at an angle inclining towards the bottom surface of a hole below from the upper surface of the switch operating unit in the axial direction.

Abstract: In order to supply the optical fiber for attenuating optical signal enable the attenuation amount to become flat in wide wavelength scope, simultaneously adding at least two kinds of dopants for attenuating optical signal over the core and the cladding of the optical fiber. Then, properly adjusting the kind and the concentration of dopants for manufacturing the optical fiber 1 for attenuating optical signal; simultaneously adding the dopant enabling the absorption of optical signal to increase with the wavelength become long and the dopant enabling the absorption of optical signal to decrease with the wavelength become long. As the dopant, it is desired to select at least two kinds of transitional metals from Co, Ni, Cr, V, Fe, Mn, Tb and Tm. Further, as the doped area, it is desired to dope the 6 times of the center portion of the core from the center of the core.

Abstract: An optical attenuator which provides almost the same degree of attenuation even when the difference in wavelength of two different kinds of input optical signals is small. Another optical attenuator is provided with a dopant concentration in a technically realizable range which increases the difference in optical attenuation of two different kinds of input optical signals. Almost the same degree of attenuation may be obtained even when the difference between wavelengths is small by canceling the wavelength dependency of attenuation of the dopant by raising the refractive index of an axially central portion of the core as compared to that of the peripheral portion of the core and by taking into account the type and area of the dopant and the ratio of the difference &Dgr;2 between the refractive indexes of the cladding and the axial portion of the core and the difference &Dgr;1 between the refractive index of the cladding and the refractive index of the peripheral portion, i.e., &Dgr;1/&Dgr;2.