Abstract: Provided is a power transmission device that has a simple structure and suppresses magnetic field leakage from a power transmission coil while suppressing excessive increase in the outer shape and the weight of the power transmission device. A power transmission device 1 includes: a power transmission portion 2 including a power transmission coil 20 and a housing 3 made of metal and having a peripheral wall 30 surrounding the power transmission portion 2. A shielding portion 5 protruding inward of the peripheral wall 30 is integrated with, of the peripheral wall 30, a top end 30t located on a power reception coil 90 placement side.

Abstract: A high frequency diffusion sheet 10 of the present invention is used for diffusing electromagnetic waves of a high frequency range and has an electromagnetic wave shielding layer 11 having electromagnetic wave shielding properties, in which the electromagnetic wave shielding layer 11 is patterned when seen in a plan view of the high frequency diffusion sheet 10, and has an opening portion 15 penetrating in a thickness direction of the electromagnetic wave shielding layer 11.

Abstract: A bismuth-substituted rare earth iron garnet single crystal suitable for Faraday rotators and optical isolators with reduced insertion loss due to suppressed valence fluctuation of Fe ions is provided. The bismuth-substituted rare earth iron garnet single crystal of the present invention is characterized by the composition formula (TbaLnbBicMg3?(a+b+c))(FedGaeTifPt5?(d+e+f))O12. In the composition formula above, 0.02?f?0.05, 0.02?{3?(a+b+c)}?0.08, and ?0.01?{3?(a+b+c)}?{f+5?(d+e+f)}?0.01. Ln is a rare earth element and may be selected from Eu, Gd, Ho, Tm, Yb, Lu, and Y.

Abstract: A drive board and so on capable of improving a printing quality are provided. The drive board according to an embodiment of the present disclosure is a board configured to output a drive signal to be applied to a liquid jet head having a plurality of nozzles, including at least one drive device which is mounted on a board surface, and which is configured to generate the drive signal configured to jet a liquid from the nozzles, and at least one constant-potential wiring line which extends along a longitudinal direction of the drive device in a mounting area of the drive device, and to which a predetermined constant potential is applied.

Abstract: An endoscope system includes a processor configured to generate a clock at predetermined timing, a light source apparatus configured to irradiate white light and excitation light in a time division manner in synchronization with the clock, and an endoscope configured to perform image pickup based on irradiation timing of the light source apparatus. The processor generates a first white light image at a first clock, generates a first fluorescent image at a second clock, generates a second white light image at a third clock, and generates a third white light image at a fourth clock and superimposes the second white light image and the first fluorescent image at the fourth clock and superimposes the third white light image and the first fluorescent image at a fifth clock.

Abstract: An antireflection structure includes an antireflection film provided on a front surface of a substrate. The antireflection film has a plurality of holes that are spatially and periodically arranged and pass through front and back surfaces of the antireflection film. A thickness and a relative dielectric constant of the antireflection film are set according to a relative dielectric constant and a thickness of the substrate and an incident angle ? of an electromagnetic wave. The thickness and the relative dielectric constant of the antireflection film are set for an electromagnetic wave incident at the angle ? so that, for example, an electromagnetic wave reflected by the antireflection film provided on the front surface of the substrate and an electromagnetic wave reflected by a back surface of the substrate deviate from each other by a half wavelength and cancel each other.

Abstract: A Faraday rotator and an optical isolator having a high transmittance and a high Verdet constant are provided. The optical isolator includes at least a Faraday rotator that rotates a polarization plane of incident light in a non-reciprocal manner, a polarizer disposed on a light incident side of the Faraday rotator, and an analyzer disposed on a light exit side of the Faraday rotator. The Faraday rotator is made of an oxide containing ytterbium oxide (Yb2O3), and is manufactured by a ceramic manufacturing process, wherein the oxide is allowed to contain an oxide of a metal other than ytterbium, and the proportion of ytterbium in all metal atoms in the oxide is 80% or more.

Abstract: An optical isolator includes: an optical isolator chip in which a first polarizer, a Faraday rotator made of a ferromagnet, and a second polarizer are bonded and fixed in this order; and a magnet for applying a magnetic field to the optical isolator chip. A light-entering end surface or a light-exiting end surface of the optical isolator chip is bonded and fixed to a component. On an optical axis of the optical isolator, a center of a magnetic flux formed by the magnet is positioned closer to the end surface side bonded and fixed to the component than a central position of the Faraday rotator on the optical axis. The optical isolator has high bonding reliability to the component.

Abstract: There are provided a liquid ejecting head and a liquid-ejecting recording apparatus in which it is possible to improve convenience. According to an embodiment of the present disclosure, a liquid ejecting head includes an ejecting section including a plurality of nozzles for ejecting liquid, a driving circuit that drives the ejecting section based on a printing driving signal to eject the liquid from the nozzles, a power supply path connected to the driving circuit, a detection section that acquires measurement data based on a detection result of a current flowing on the power supply path, and an arithmetic operation section that performs both an inspection of a state of the ejecting section based on the measurement data obtained by the detection section and acquisition of a parameter for ejection of the liquid.

Abstract: An embodiment of the present disclosure is a driving circuit for ejecting liquid from a plurality of nozzles in an ejecting section in a liquid ejecting head. The driving circuit includes a first signal generation section that generates a printing driving signal for ejecting the liquid from the nozzles, a second signal generation section that generates an inspection driving signal for inspecting a state of the ejecting section, and a control section that controls the first signal generation section and the second signal generation section so as to exclusively output one of the printing driving signal and the inspection driving signal to the ejecting section.

Abstract: An endoscope apparatus includes a spectroscopic section disposed on an optical axis of return light from an object irradiated with visible light, first excitation light and second excitation light including a longer wavelength than a wavelength of the first excitation light and configured to separate and emit the light of a second wavelength band other than light of a first wavelength band, a first excitation light cut filter configured to block a wavelength band of one of the first excitation light and the second excitation light included in the return light, and a second excitation light cut filter configured to block a wavelength band of another excitation light of the first excitation light and the second excitation light and a wavelength band of the visible light.

Abstract: A light guide body for optical path and optical axis adjustment, the light guide body includes a silicon single crystal having an extinction ratio of 30 dB or more. The light guide body is a light guide body having one side surface alone joined and fixed to a base. An optical module including the light guide body installed at an installation angle adjusted for optical path and optical axis adjustment between components. An optical path and optical axis adjustment method including adjusting an installation angle of the light guide body to perform the optical path and optical axis adjustment between components. It is possible to provide the light guide body which does not adversely affect polarization characteristics and can easily perform the optical path and optical axis adjustment. It is possible to provide optical module and the optical path and optical axis adjustment method using such a light guide body.

Abstract: The present invention provides an optical isolator module, including: a plurality of optical devices, each comprising a Faraday rotator and being configured to have an optical isolator function upon application of a magnetic field, a magnet to apply the magnetic field to the Faraday rotator in each of the plurality of optical devices, wherein at least two optical devices of the plurality of optical devices are configured to have the optical isolator functions in different directions from each other, and each magnetic field applied with the magnet is in the same direction. This provides an optical isolator module that can be prevented from degradation of the performance such as increase of insertion loss and degradation of isolation due to magnetic field interference even when a plurality of optical isolators are close to each other.

Abstract: An endoscope system is provided with: a processor; a light source; and an image pickup device. The processor performs control for causing reflected light images corresponding to a predetermined period before start of the fluorescence occurrence period during the fluorescence non-occurrence period, among the reflected light images, to be recorded to the first storage medium; and, furthermore, performs control for causing the reflected light images to be recorded to the first storage medium during an after-end-of-fluorescence-occurrence period corresponding to a predetermined period with an end of the fluorescence occurrence period as a start point, and performs control for causing the reflected light images not to be recorded to the first storage medium during the fluorescence non-occurrence period after an end of the after-end-of-fluorescence-occurrence period.

Abstract: A computer is caused to execute processing that determines, based on a first usage amount of a hardware resource which is allocated for processing corresponding to objects of a first category including an essential object located in a target scene, a second usage amount of the hardware resource that is able to be allocated for processing for objects of a second category different to the first category. Also, the computer is caused to execute processing of deciding, for objects of the second category which are located in the target scene, types of those objects and an outer appearance parameter for each type based on the second usage amount and information for deciding outer appearances for when the objects of the second category are located in the target scene.

Abstract: Provided is a transmitter which can maximize the efficiency of rectification in a power-receiving electronic device irrespective of the distance therebetween. The transmitter transmits electric power to the electronic device through use of a microwave. The electronic device receives the microwave, converts the microwave to DC power, and uses the DC power as operation power.

Abstract: The present invention is a polarization independent optical isolator including two polarizing separation members each configured to separate polarization components of a transmitted light, an absorptive polarizer arranged on optical paths of separated transmitted lights and corresponding to a plane of polarization of each separated transmitted light, and a Faraday rotator, wherein the Faraday rotator is arranged downstream of the absorptive polarizer in a forward direction. As a result, there can be provided a polarization independent optical isolator that requires no stray light processing of separated optical feedback and shows high isolation.

Abstract: A small, low-cost 1.5-stage optical isolator has, in a forward direction, incoming light and outgoing light polarization directions that are parallel. The isolator includes a first Faraday rotator, a first polarizer, a second Faraday rotator and a second polarizer arranged in order on a light transmission path, and a magnet arranged so as to apply a same-direction magnetic field to the first Faraday rotator and the second Faraday rotator. Faraday rotation in the first Faraday rotator and Faraday rotation in the second Faraday rotator occur in opposite directions.

Abstract: The present invention comprises: a step of applying a liquid composition for forming a PZT ferroelectric film; a step of drying the film applied with the liquid composition; a step of irradiating UV rays onto the dried film at a temperature of 150 to 200° C. in an oxygen-containing atmosphere; and after the application step, the drying step, and the UV irradiation step once, or more times, a step of firing for crystallizing a precursor film of the UV-irradiated ferroelectric film by raising a temperature with a rate of 0.5° C./second or higher in an oxygen-containing atmosphere or by raising a temperature with a rate of 0.2° C./second or higher in a non-oxygen containing atmosphere, followed by keeping the temperature at 400 to 500° C. An amount of liquid composition is set such that thickness of the ferroelectric film be 150 nm or more for each application and ozone is supplied during UV irradiation.

Abstract: An ejection volume of a liquid can more finely be adjusted without lowering the ejection speed. The liquid jet head includes a plurality of nozzles adapted to jet the liquid, a piezoelectric actuator having a plurality of pressure chambers corresponding respectively to the nozzles and filled with the liquid, and adapted to vary a capacity of each of the pressure chambers, and a control section adapted to apply a pulse signal to the piezoelectric actuator to thereby expand and contract the capacity of the pressure chamber so as to jet the liquid with which the pressure chamber is filled. The control section generates a drive waveform including a plurality of the pulse signals adapted to expand the capacity of the pressure chamber, and sets a crest value of either of the pulse signals other than the pulse signal applied last to a different value from a crest value of another of the pulse signals in the drive waveform.