Abstract: A light-emitting device includes an ultraviolet light LED sealed in a package. The LED is bonded to a substrate with an alloy bonding material. The LED is covered with an enclosed gas containing oxygen gas and further covered with a lid member that is hermetically bonded to the substrate. The lid member defines a space filled with the enclosed gas and constitutes the package. The lid member transmits the ultraviolet light emitted from the LED.

Abstract: A light-emitting device includes a substrate, a frame body, a light-emitting element, a wavelength converter, and a light reflecting portion. The light-emitting element includes a semiconductor light-emitting layer on a support substrate. The wavelength converter is disposed on an upper surface of the light-emitting element. The light reflecting portion covers side surfaces of the light-emitting element and the wavelength converter and is formed of a translucent resin containing light reflective particulate fillers. The light reflecting portion includes a first region extending along an upper surface of the light reflecting portion, a second region that is disposed under the first region and has a content rate of the particulate fillers lower than a content rate of the first region, and a third region that is disposed under the second region and has a content rate of the particulate fillers lower than the content rate of the second region.

Abstract: To provide a vehicle headlight whose irradiation light is capable of ensuring sufficient illuminance to the immediate front side of the vehicle. A vehicle headlight irradiating light to the front of a vehicle including a first unit which generates light in order to form a first low beam, a second unit which generates light in order to form a high beam and a second low beam, where a portion of the high beam on the lower end side overlaps a portion of the first low beam on the upper side, and the other portion is formed above the first low beam without overlapping the first low beam, and where a portion of the second low beam on the upper side overlaps a portion of the first low beam on the lower side, and the other portion is formed below the first low beam without overlapping the first low beam.

Abstract: A function member is disposed between a second lens cover and a second lighting unit so as to overlap the third light emitting area when seen in a front view, and the function member has a function of, when the light emitting surface is seen in a front view, transmitting through light emitted in the third light emitting area, and a function of, when the light emitting surface is seen from a view from diagonally above, blocking light emitted above than a first light emitting area and a second light emitting area among the light emitted in the third light emitting area, and transmitting through light emitted between the first light emitting area and the second light emitting area among the light emitted in the third light emitting area.

Abstract: Provided are a light-emitting device and a method of manufacturing the same. The light-emitting device includes a flexible surface light source curved in a desired shape, a first fixture that includes first and second positioning ribs, and has a first curved surface between the first and second positioning ribs, and a second fixture having a second curved surface. The method includes mounting the surface light source in a flat state on the first positioning rib and the second positioning rib such that the front or rear surface and the first curved surface face to each other across a space, bringing the second fixture close to the first fixture and pushing the surface light source toward the first fixture to curve the surface light source, and fixing the first and second fixtures together with the curved surface light source held therebetween.

Abstract: A vehicular lamp configured to radiate illumination light and measuring light toward a side in front of a vehicle includes a light source unit configured to emit visible light that becomes illumination light and measuring light, and the light source unit emits the illumination light and the measuring light while alternately switching the illumination light and the measuring light at a cycle in which at least the measuring light is not visually recognized by a driver.

Abstract: Provided is a light-emitting device having a plurality of light-emitting elements with high operation stability and light extraction efficiency. The light-emitting device includes: a light-emitting element; a translucent member which is disposed on the light-emitting element and has a columnar first portion having a bottom surface opposed to an upper surface of the light-emitting element, a second portion formed continuously with the first portion on the first portion and narrowed upward, and a columnar third portion formed continuously with the second portion on the second portion; and a reflective member configured to cover the side surfaces of the translucent member. In this light-emitting device, the height of the first portion of the translucent member in a direction perpendicular to the bottom surface thereof is ? or more the height of the translucent member in the direction perpendicular to the bottom surface.

Abstract: The present invention provides a TOF range finder. A TOF range finder 1 includes a light source 2, which emits modulated emitting light La, a light source control unit 51, which drives the light source 2, an image sensor 10, which detects modulated reflected light, and a distance calculating unit 53, which calculates the distance to a distance measurement object 7 based on the phase difference between emitting light La and reflected light. The modulated light is generated in the form of a periodic waveform which contains an only odd multiple wave frequency component and at least one even multiple wave frequency component.

Abstract: In a side-edge type surface light emitting apparatus including a light guide plate having a light emitting surface and a light distribution controlling surface opposing each other, and a light incident surface and a counter light incident surface opposing each other on sides of the light emitting surface and the light distribution controlling surface; a light source disposed on the light incident surface; and a prism sheet having multiple peak-shaped prisms protruded toward the light emitting surface and in parallel with the light incident surface, each of the peak-shaped prisms has a definite apical shape and a definite apical height, and the peak-shaped prisms have a definite pitch. The peak-shaped prisms have sloped angles gradually changed from the light incident surface to the counter light incident surface.

Abstract: A light deflector includes a mirror part, a pair of torsion bars, inside piezoelectric actuators, and a movable frame part. The crystal orientation in the axial direction of the torsion bars is set to <100>. In the joint edge portions of the torsion bars and the inside piezoelectric actuators, radius parts are oriented to <110> and each formed by a curved surface recessed inward. The amount of waviness about a roughness curve derived from the curved surface is set within 600 nm.

Abstract: In a light emitting device, in a bottom surface of a cavity of a Si substrate, slit-shaped through holes and through electrodes that fill the through holes are provided at a position facing a first element electrode of a light emitting element. A length of an upper surface of the through electrode in a long axis direction is larger than a height of the through electrode in a thickness direction of the Si substrate. A joining layer having a shape corresponding to a shape of the upper surface of the through electrode is disposed between the first element electrode of the light emitting element and the upper surface of the through electrode facing the first element electrode. The entire upper surface of the through electrode is joined to the first element electrode via the joining layer.

Abstract: A liquid crystal element includes a first substrate, a second substrate arranged to face the first substrate, a first pixel electrode corresponding to a first pixel region arranged on the first substrate on the second substrate side, a second pixel electrode corresponding to a second pixel region arranged on the first substrate on the second substrate side, a common electrode arranged on the first substrate side of the second substrate, and a liquid crystal layer arranged between a group of the first and second pixel electrodes and the common electrode, where the first pixel electrode and the second pixel electrode are provided on different layers on the first substrate, and their ends are arranged so as to partially overlap each other in a plan view.

Abstract: An electrochemical device includes a first substrate and a second substrate disposed face-to-face and each including an opposing electrode disposed on an opposing surface, and an electrolytic solution provided between the first substrate and the second substrate containing a solvent, a supporting electrolyte, a mediator, and an electrodeposition material containing Ag wherein the mediator contains one or more of Mo, Sn, Nb, Sb, and Ti.

Abstract: To reduce the time until the start of the lighting while suppressing the overshoot of the current. A method to carry out lighting control of a semiconductor light emitting element using a lighting control device where the lighting control device includes a switching element serially connected to the semiconductor light emitting element and having a control terminal to control a conductive state, and a control circuit to control the control terminal. The method including: increasing a control voltage of the control terminal of the switching element from an initial value to a first value in a relatively short time by the control circuit; and increasing the control voltage of the control terminal of the switching element from the first value to a second value in a relatively long time by the control circuit.

Abstract: Reliable resin packages and semiconductor light-emitting devices using the resin package can include a printed circuit board including a resin layer, metallic layers formed on a top surface of the resin layer and underneath a bottom surface of the resin layer and a frame arranged from a top surface of the printed circuit board toward a bottom surface of the printed circuit board. The semiconductor light-emitting device using the resin package can prevent the printed circuit board from warping toward the frame when forming the frame incorporating the printed circuit board because a total of each thickness of the metallic layers formed on the top surface and underneath the bottom surface of the resin layer can be thicker than a thickness of the resin layer. Thus, the present invention can provide the semiconductor light-emitting devices having high reliability, which can be used as a light source for vehicle lamps, etc.

Abstract: A vehicle lamp includes a plurality of light source modules that includes light sources including a plurality of light emitting elements that emit different colors of light and lens bodies disposed in front of the light sources, and the plurality of light source modules are disposed in a matrix manner in a plane to constitute at least one light emitting area.

Abstract: An aspect of the invention provides a multilayer circuit substrate that has a simple configuration and is thin. The multilayer circuit substrate has a stacked multiple of substrates and a wiring pattern disposed so to be sandwiched between the stacked multiple of substrates. At least one portion of the wiring pattern is configured of a conductive material wherein conductive particles are sintered. An upper face of the wiring pattern is directly joined to the substrate positioned above the wiring pattern, a lower face of the wiring pattern is directly joined to the substrate positioned below the wiring pattern, and the stacked multiple of substrates are fixed to each other by the wiring pattern.

Abstract: A lens holding structure, comprising a first holding member, a first lens disposed ahead of the first holding member, a second lens disposed ahead of the first lens, a second holding member disposed ahead of the second lens, and a fixing unit that fixes the first holding member and the second holding member in a state of holding the first lens and the second lens between the first holding member and the second holding member, wherein the first lens and the second lens are held between the first holding member and the second holding member in a state of the optical surface of the second lens being surface-contacted with the optical surface of the first lens.

Abstract: A light-emitting device includes: a semiconductor light-emitting element; a substrate having a mount portion for the light-emitting element and a frame portion that is provided to stand on an outer peripheral part of the mount portion and has, on a top surface thereof, a substrate joint surface to which an annular substrate metal layer is fixed; and a light-transmitting cap made of glass and having a window portion that allows light emitted from the light-emitting element to pass through and a cap joint surface to which an annular cap metal layer of a size corresponding to the substrate metal layer is fixed, the cap joint surface being joined to the substrate metal layer by a joint layer to seal the light-transmitting cap to the substrate, wherein the top surface of the frame portion is inclined to decrease in height from an outer peripheral part toward an inner peripheral part of the frame portion.

Abstract: A light emitting device includes a semiconductor light emitting element which emits excitation light having a peak wavelength in a range of 440 to 450 nm and a fluorescent body layer which is provided on the semiconductor light emitting element, is excited by the excitation light from the semiconductor light emitting element, and contains a first fluorescent body and a second fluorescent body which emit first fluorescent light and second fluorescent light. The first fluorescent light has a peak wavelength in a range of 540 to 575 nm, and the second fluorescent light has a peak wavelength in a range of 590 to 605 nm. In mixed color light of the radiation light, the intensity of the radiation light of the semiconductor light emitting element is 1/10 to 1/60 of the intensity of the combined light of the radiation light from the first fluorescent body and the second fluorescent body.