Abstract: An SLM includes a modulation unit and a driving circuit. The modulation unit includes a plurality of pixels, and modulates a phase or an intensity of incident light in each pixel according to an amplitude of a drive signal changing periodically with time. The driving circuit provides the drive signal to the modulation unit. The driving circuit performs control such that a phase of the drive signal V1(t) provided to a first pixel group in the plurality of pixels and a phase of the drive signal V2(t) provided to a second pixel group in the plurality of pixels are mutually inverted.

Abstract: A semiconductor device includes two semiconductor elements for switching, a first conductor electrically connecting the second electrodes of the two semiconductor elements, a second conductor electrically connecting the second electrodes, and a first power terminal electrically connected to the first conductor and the second electrodes of the first semiconductor elements. The two first semiconductor element are connected in parallel with each other. A first conduction path and a second conduction path are provided between the second electrodes of the two semiconductor elements and extend through the first conductor and the second conductor, respectively. The first conduction path and the second conduction path are at least partially in parallel. The combined inductance of the first conduction path and the second conduction path is smaller than the inductance of the first conduction path.

Abstract: A semiconductor device includes: a substrate having an obverse surface; a first wiring layer on the obverse surface; a second wiring layer on the obverse surface, separated from the first wiring layer; a first semiconductor element having mutually opposite first obverse electrode and first reverse electrode, with the first reverse electrode bonded to the first wiring layer; a second semiconductor element having mutually opposite second obverse electrode and second reverse electrode, with the second reverse electrode bonded to the second wiring layer; and a conductive member separated from the substrate and bonded to the first and the second obverse electrodes. The first obverse electrode and the second obverse electrode have different polarities. The substrate includes an exposed portion between the first wiring layer and the second wiring layer. The conductive member overlaps with the exposed portion as viewed in the thickness direction of the substrate.

Abstract: An SLM includes a modulation unit and a driving circuit. The modulation unit includes a plurality of pixels, and modulates a phase or an intensity of incident light in each pixel according to an amplitude of a drive signal changing periodically with time. The driving circuit provides the drive signal to the modulation unit. The driving circuit performs control such that a phase of the drive signal V1(t) provided to a first pixel group in the plurality of pixels and a phase of the drive signal V2(t) provided to a second pixel group in the plurality of pixels are mutually inverted.

Abstract: A quantum simulator includes a chamber, a light beam generation apparatus, and a photodetector. The light beam generation apparatus includes a light source, an optical mask, a spatial light modulator, and a lens. The optical mask includes an inner region having a rectangular shape with a side parallel to a first direction or a second direction, and an outer region surrounding the inner region. When an xy coordinate system including an x axis parallel to the first direction and a y axis parallel to the second direction is set on an image plane, the light beam generation apparatus forms and regularly arranges focusing spots such that a minimum value of a difference between x coordinate values and a minimum value of a difference between y coordinate values of center positions of the focusing spots are longer than a non-overlapping distance.

Abstract: A quantum simulator includes a chamber, a light beam generation apparatus, and a photodetector. The light beam generation apparatus includes a light source, a spatial light modulator, and a lens. Each of pixels of the spatial light modulator has a rectangular shape with a side parallel to a first direction or a second direction, and the pixels are arranged at regular intervals along the first direction and the second direction. When an xy coordinate system including an x axis parallel to the first direction and a y axis parallel to the second direction is set on an image plane, the light beam generation apparatus forms and regularly arranges focusing spots such that a minimum value of a difference between x coordinate values and a minimum value of a difference between y coordinate values of center positions of the focusing spots are longer than a non-overlapping distance.

Abstract: An optical apparatus includes an angle filter disposed on an optical path in the middle of focusing or in the middle of divergence by a focusing optical element. The angle filter includes a dielectric multilayer film in which dielectric layers having a first refractive index and dielectric layers having a second refractive index lower than the first refractive index are alternately stacked.

Abstract: An optical apparatus includes an optical system for outputting parallel light, and an angle filter disposed on an optical path of the parallel light output from the optical system. The angle filter includes a dielectric multilayer film in which dielectric layers having a first refractive index n1 and dielectric layers having a second refractive index n2 lower than the first refractive index n1 are alternately stacked.

Abstract: A terminal fitting 10 is provided with a terminal body portion 11 extending in an axial direction and a plurality of protrusions 20, 30 and 40 projecting in an intersecting direction intersecting the axial direction from the terminal body portion 11. The plurality of protrusions 20, 30 and 40 are arranged side by side in the axial direction and each protrusion has a top surface 21, 31, 41 along the axial direction, a front surface 22, 32, 42 inclined toward a front side in the axial direction from the top surface 21, 31, 41 and a rear surface 23, 33, 43 inclined toward a rear side in the axial direction from the top surface 21, 31, 41. Projection amounts of the plurality of protrusions 20, 30 and 40 in the intersecting direction are larger for the protrusions more on the rear side in the axial direction.

Abstract: A connector includes a housing to be mounted on a circuit board, and an upper-stage terminal, a middle-stage terminal and a lower-stage terminal to be held in the housing. Leg portions of the respective upper-stage terminal and middle-stage terminal are arranged side by side in a width direction of a wall portion, and include each a wide portion and a narrow portion arranged below the wide portion. The wide portion of the upper-stage terminal protrudes only toward the middle-stage terminal with respect to the narrow portion of the upper-stage terminal. The wide portion of the middle-stage terminal protrudes only toward the middle-stage terminal with respect to the narrow portion of the upper-stage terminal. A leg portion of the lower-stage terminal is arranged between the narrow portion of the upper-stage terminal and the narrow portion of the middle-stage terminal in the width direction.

Abstract: A pseudo speckle pattern generation apparatus includes a light source, a beam expander, and a spatial light modulator. The spatial light modulator has an intensity modulation distribution based on a pseudo speckle pattern calculated from a pseudo random number pattern and a correlation function, receives light output from the light source and increased in beam diameter by the beam expander, spatially modulates the received light according to the modulation distribution, and outputs modulated light.

Abstract: A terminal 1 is made of a rectangular wire material, extends in a front-rear direction and is provided with a terminal body 2, a pair of first projections 3 provided to project toward both left and right sides from both side surfaces 2A of the terminal body 22, and a pair of second projections 4 provided to project toward both left and right sides from the both side surfaces 2. A of the terminal body 2 and disposed behind the pair of first projections 3. The pair of second projections 4 are continuously and integrally formed with the pair of first projections 3. A maximum projecting dimension X2max of the second projection 4 from the side surface 2A of the terminal body 2 is larger than a maximum projecting dimension X1max of the first projection 3 from the side surface 2A of the terminal body 2.

Abstract: A quantum simulator includes a pseudo speckle pattern generator, a main vacuum chamber, an atomic gas supply unit, a light beam generator, a photodetector, and an atom number detector. The pseudo speckle pattern generator generates a pseudo speckle pattern in the inside of the main vacuum chamber by light allowed to enter the inside of the main vacuum chamber through the second window. The pseudo speckle pattern generator includes a controller, a light source, a beam expander, a spatial light modulator, and a lens. The controller sets a modulation distribution of the spatial light modulator based on a two-dimensional pseudo random number pattern.

Abstract: A pseudo speckle pattern generation apparatus includes a light source, a beam expander, and a spatial light modulator. The spatial light modulator has an intensity modulation distribution based on a pseudo speckle pattern calculated from a pseudo random number pattern and a correlation function, receives light output from the light source and increased in beam diameter by the beam expander, spatially modulates the received light according to the modulation distribution, and outputs modulated light.

Abstract: A reflective spatial light modulator includes an electro-optic crystal having an input surface to which input light is input and a rear surface opposing the input surface, a light input/output unit being disposed on the input surface of the electro-optic crystal and having a first electrode through which the input light is transmitted, a light reflection unit including a substrate including a plurality of second electrodes and an adhesive layer for fixing the substrate to the rear surface and being disposed on the rear surface of the electro-optic crystal, and a drive circuit applying an electric field between the first electrode and the plurality of second electrodes.

Abstract: A connector includes a housing body provided with a plurality of cavities inside, a front mask to be mounted on a front surface of the housing body, and a lock arm extending rearward from a base end portion provided on the housing body. The front mask includes a locking portion to be locked to the base end portion.

Abstract: A connector 10 disclosed by this specification is to be mounted on a circuit board having lands and includes a housing 12 to be connected to a mating housing, and a pair of pegs (board fixing portions) 16 to be respectively mounted into both side portions of the housing 12 and soldered and fixed to the lands. The pair of pegs 16 respectively have peg-side contact surfaces (fixing portion-side contact surfaces) 26S to be held in surface contact with a pair of housing-side contact surfaces 52S located on both side surfaces of the housing 12. The housing 12 includes a pair of first projections (projections) 64 projecting toward back surfaces 26B of the pair of pegs 16 on sides opposite to the peg-side contact surfaces 26S.

Abstract: A reflective spatial light modulator includes an electro-optic crystal having an input surface to which input light is input and a rear surface opposing the input surface, a light input/output unit being disposed on the input surface of the electro-optic crystal and having a first electrode through which the input light is transmitted, a light reflection unit including a substrate including a plurality of second electrodes and being disposed on the rear surface side of the electro-optic crystal, and a drive circuit applying an electric field between the first electrode and the plurality of second electrodes. The light input/output unit includes a first charge injection curbing layer formed on the input surface, and the light reflection unit includes a second charge injection curbing layer formed on the rear surface.

Abstract: A terminal (11) to be mounted into a housing (20) mounted on a circuit board (40) includes a terminal contact portion (12) to be disposed in a forwardly open receptacle (21) of the housing (20), an inserting portion (14) to be inserted into a terminal insertion hole (24) penetrating through a rear wall (22) of the receptacle (21) in a front-rear direction, and a board connecting portion (16) to be drawn out rearward from the terminal insertion hole (24) and connected to the circuit board (40). The inserting portion (14) includes a first press-fit portion (31) projecting in a first direction intersecting the circuit board (40) and to be press-fit to an inner wall of the terminal insertion hole (24) and a second press-fit portion (33) projecting in a second direction intersecting the first direction and to be press-fit to the inner wall of the terminal insertion hole (24).

Abstract: A pseudo speckle pattern generation apparatus includes a first spatial light modulator, a first lens, a second spatial light modulator, a second lens and the like. The first spatial light modulator has a first intensity modulation distribution based on a pseudo random number pattern, and spatially modulates intensity of light output from a light source and increased in beam diameter by a beam expander. The second spatial light modulator has a second intensity modulation distribution based on a filter function, is provided on a plane where a Fourier transformed pattern is generated by the first lens, and spatially modulates intensity of the light reached through the first lens. The second lens optically Fourier transforms a pattern of the light output from the second spatial light modulator to generate a Fourier transformed pattern as a pseudo speckle pattern.