摘要:
An optical pickup and an optical disk apparatus of the invention includes a light source 1 mounted with a light-emitting element constituted of a monoblock on a surface of a plate 6 and emitting plural light beams, a light-receiving element 2, optical members 4, 5 and a coupling base 3 for coupling the light source 1, the light-receiving element 2 and the optical members 4, 5, wherein a light from the light source 1 is directed through the optical members 4, 5 toward an optical disk, and a returning light from the optical disk is guided through the optical members 4, 5 to the light-receiving element 2, characterized in that the plate 6 provided in the light source 1 and the coupling base 3 are adjoined by a solder.
摘要:
In a semiconductor laser device of the invention, a ridge portion 150 forms a waveguide, and guided light goes along the ridge portion 150. A tail of the guided layer is present also at first side portions 151, while second side portions 152 are regions which the tail of the guided light does not reach. Meanwhile, scattered light generated from the ridge portion 150 goes through the first side portions 15, spreading into the second side portions 152. In the second side portions 152, a light absorption layer 127 serving as a light absorber is formed on the first upper clad layer 108, where the scattered light is absorbed. As a result of the absorption of scattered light in the second side portions 152, ripples of radiation light are reduced. Also since the light absorption layer 127 is in electrical contact with a p-side ohmic electrode 125, the problem of charge accumulation to the light absorption layer 127 can be avoided.
摘要:
A liquid ejecting head includes a plurality of nozzles each including an ejection outlet for ejecting a droplet, an ejection energy generating element, disposed at a position opposing the ejection outlet, for generating energy for ejecting a droplet, a pressure chamber provided with the ejection energy generating element and fluidly communicating with the ejection outlet, and a supply passage for supplying the liquid to the pressure chamber, wherein the nozzles include a first nozzle and a second nozzle which are connected with respective ones of the supply passages having lengths different from each other, wherein the first nozzle and the second nozzle are, disposed at one end portion with respect to a widthwise direction of an elongated supply chamber for supplying the liquid to the first nozzle, wherein the supply passage for the first nozzle extends in a direction perpendicular to a direction of liquid ejection from the ejection outlet and fluidly communicates with the supply chamber, and wherein the supply passage for the first nozzle extends in a direction parallel with the direction of liquid ejection.
摘要:
A mixer, which is a single balanced mixer, includes an LO port for inputting an LO signal, an RF port for inputting an RF signal, an IF port for outputting an IF signal, a balun for converting an unbalanced signal into a balanced signal, and a pair of mixer diodes connected in series. The mixer further includes a high-pass filter for blocking LO and IF signals and passing an RF signal and a low-pass filter for blocking LO and RF signals and passing an IF signal.
摘要:
In an outermost surface of a semiconductor laser device to which a solder layer is applied, an incomplete adherent layer is formed which is incompletely adhered to the solder layer, extends in a width direction perpendicular to a longitudinal direction of a light-emitting region and a stacking direction of the semiconductor laser device, the solder layer and a mount, outwardly to either side by a predetermined second distance from a virtual plane which passes through a center of the light-emitting region and is perpendicular to the width direction and which incomplete adherent layer has a longitudinal length shorter than that of the light-emitting region. Further, in an area of the outermost surface excluding the incomplete adherent layer is formed a complete adherent layer.
摘要:
A wearable jacket includes a 2D-DST substrate shaped to cover a body of a subject person. The 2D-DST substrate includes a first conductive sheet, a second conductive sheet and a plurality of communication modules. The first and second conductive sheets are overlapped, and the first conductive sheet is located on the subject person side when in use. The plurality of communication modules are distributed between the first and second conductive sheets. At least one of the plurality of communication modules has a communicating system capable of communicating with an external device by receiving and/or transmitting a spatially propagating signal. One of the first and second conductive sheets on the external device side is formed with an area that allows the spatially propagating signal to pass through at a position corresponding to a location of a communication module having the communicating system.
摘要:
A mixer, which is a single balanced mixer, includes an LO port for inputting an LO signal, an RF port for inputting an RF signal, an IF port for outputting an IF signal, a balun for converting an unbalanced signal into a balanced signal, and a pair of mixer diodes connected in series. The mixer further includes a high-pass filter for blocking LO and IF signals and passing an RF signal and a low-pass filter for blocking LO and RF signals and passing an IF signal.
摘要:
An image signal processing device for processing an image signal transmitted from an imaging unit by radio is provided. The image signal processing device is provided with at least one antenna that receives the image signal transmitted from the imaging unit by radio, a substrate, and a plurality of 2D-DST elements arranged on the substrate. The plurality of 2D-DST elements include a plurality of receiving elements each of which includes a processing unit having functions of receiving the image signal and processing the received image signal. The plurality of receiving elements are connected to the at least one antenna. At least a part of the plurality of receiving elements contributes to time-division multiplexing of receiving the image signal and processing the image signal.
摘要:
A delay line comprising a dielectric substrate including a pair of main surfaces; a transmission line disposed on one of the main surfaces of the dielectric substrate; a ground conductor disposed on the other of the main surfaces of the dielectric substrate; and at least one of a variable capacitor and a diode being disposed on the dielectric substrate and connected in parallel to the transmission line for setting a desired delay time of the delay line. In the above delay line, the delay time can be adjusted even after the delay line is mounted on a printed circuit board, and further, the delay time can be continuously adjusted. The delay line can also be formed in a multilayer structure rather than on the above dielectric substrate.
摘要:
To provide a floating connector wherein strengths against pull-out forces in the height direction are high and both housings are resistant to separation, the slide housing slides in any direction perpendicular to the height direction to reliably absorb the deviation in the position of the floating connector in relation to that of the counterpart connector without resulting in any defective contact with the counterpart contacts nor buckling of the contacts, the floating connector can be produced easily, and the floating connector has a high self-supportability through setting an appropriate rigidity of the contacts. It is a floating connector wherein the connecting parts of the contacts are pressed into the base housing, the contacting parts of the contacts are pressed into the slide housing, and both housings are so related to each other by means of protruding parts protruding in the width direction and grooves into which the protruding parts are inserted that both housings can slide in any directions perpendicular to the height direction.