Abstract: Provided is a confocal sensor having a wider measuring range. A confocal sensor 1 comprises: a light source 10 that emits light at a plurality of wavelengths; a diffractive lens 130 that causes a chromatic aberration with respect to the light along an optical axis and focuses the light onto an object 200 without another intervening lens; a pinhole 120 through which reflected light passes, the reflected light being a portion of the light that was focused onto and reflected from the object 200 and focused by the diffractive lens 130; and a measuring unit 40 that measures the distance from the diffractive lens 130 to the object 200 on the basis of a wavelength of the reflected light. A distance L2 from the pinhole 120 to the diffractive lens 130 is variable.

Abstract: An optical interference range sensor includes: a light source configured to project a light beam while continuously varying a wavelength thereof using a predetermined sweep frequency pattern; a processing unit configured to measure the distance to a measurement target based on an electrical signal converted by a light-receiving unit; and a storage unit configured to store distance information indicating the measured distance. The predetermined sweep frequency pattern includes a first sweep frequency pattern and a second sweep frequency pattern.

Abstract: An optical measurement device is provided with: a light source for emitting light towards a target; a light-receiving unit that is configured so that each of a plurality of pixels is able to detect a received light amount, and that obtains a received light amount distribution signal of each of the pixels; an acquisition unit for acquiring a measured waveform signal from received light amount distribution signals for reflected light that is reflected by the target on the basis of received light amount distribution signals for when no target is present; and an adjustment unit for adjusting a sensitivity parameter with respect to the received light amount distribution signals of the reflected light so that the measured waveform signal is acquired when some of the received light amounts of the received light amount distribution signals of the reflected light are a predetermined value or higher.

Abstract: Provided is a confocal sensor having a wider measuring range. A confocal sensor 1 comprises: a light source 10 that emits light at a plurality of wavelengths; a diffractive lens 130 that causes a chromatic aberration with respect to the light along an optical axis and focuses the light onto an object 200 without another intervening lens; a pinhole 120 through which reflected light passes, the reflected light being a portion of the light that was focused onto and reflected from the object 200 and focused by the diffractive lens 130; and a measuring unit 40 that measures the distance from the diffractive lens 130 to the object 200 on the basis of a wavelength of the reflected light. A distance L2 from the pinhole 120 to the diffractive lens 130 is variable.

Abstract: An error of a measured distance is reduced. An optical measurement device (100) includes: a light source (10), which emits lights; a sensor head (30), which condenses reflected lights reflected by a target (TA); a light reception portion (40), which is configured in a manner that each of a plurality of pixels is capable of detecting a light reception amount, and which obtains a light reception amount distribution signal of each pixel for the condensed reflected lights; a measurement portion (51), which measures a distance from the optical measurement device (100) to the target (TA) based on the light reception amount distribution signal; and a correction portion (52), which corrects the measured distance that is measured based on a predefined characteristic value in a waveform of the light reception amount distribution signal.

Abstract: A confocal measurement device includes a light source that outputs white light, an optical coupler, a sensor head that applies light with a chromatic aberration caused therein to a measurement object, and a spectroscope that acquires reflected light which is reflected by the measurement object and measures a spectrum of the reflected light. The optical coupler is a filter type coupler or a spatial optical system type coupler that brings a first transmission waveform when light is transmitted from a first optical fiber cable to a second optical fiber cable and a second transmission waveform when light is transmitted from the second optical fiber cable to a third optical fiber cable close to each other.

Abstract: An error of a measured distance is reduced. An optical measurement device (100) includes: a light source (10), which emits lights; a sensor head (30), which condenses reflected lights reflected by a target (TA); a light reception portion (40), which is configured in a manner that each of a plurality of pixels is capable of detecting a light reception amount, and which obtains a light reception amount distribution signal of each pixel for the condensed reflected lights; a measurement portion (51), which measures a distance from the optical measurement device (100) to the target (TA) based on the light reception amount distribution signal; and a correction portion (52), which corrects the measured distance that is measured based on a predefined characteristic value in a waveform of the light reception amount distribution signal.

Abstract: A confocal measurement device includes a light source that outputs white light, an optical coupler, a sensor head that applies light with a chromatic aberration caused therein to a measurement object, and a spectroscope that acquires reflected light which is reflected by the measurement object and measures a spectrum of the reflected light. The optical coupler is a filter type coupler or a spatial optical system type coupler that brings a first transmission waveform when light is transmitted from a first optical fiber cable to a second optical fiber cable and a second transmission waveform when light is transmitted from the second optical fiber cable to a third optical fiber cable close to each other.

Abstract: To improve light use efficiency and thereby achieve even higher sampling rates. An optical measurement device includes: a light source configured to emit illumination light including a plurality of wavelength components; an optical system configured to introduce an axial chromatic aberration into the illumination light from the light source and to receive reflection light reflecting from a measurement object where at least a portion of the measurement object lies along a line extending from the optical axis of the optical system; a spectrometer for separating the reflection light received at the optical system into wavelength components, and a detector including a plurality of light receiving elements arranged one-dimensionally to correspond to the dispersion direction of the spectrometer.

Abstract: An illumination device is provided with an arrangement for reducing color unevenness. A plurality of light-emitting devices are provided, each of which includes a transparent enclosure sealing a light-emitting element and further including a phosphor excited by light emitted from the light-emitting element. A substrate is provided upon which the plurality of light-emitting devices are mounted. The light-emitting devices are provided with predetermined color temperatures that vary in accordance with their position along the substrate to reduce color unevenness, for example increasing in a phased manner from the center of the substrate toward the outer circumference thereof.

Abstract: To improve light use efficiency and thereby achieve even higher sampling rates. An optical measurement device includes: a light source configured to emit illumination light including a plurality of wavelength components; an optical system configured to introduce an axial chromatic aberration into the illumination light from the light source and to receive reflection light reflecting from a measurement object where at least a portion of the measurement object lies along a line extending from the optical axis of the optical system; a spectrometer for separating the reflection light received at the optical system into wavelength components, and a detector including a plurality of light receiving elements arranged one-dimensionally to correspond to the dispersion direction of the spectrometer.

Abstract: [Problem to be Solved] To enhance the performance for separation of oil mist from blow-by gas. [Solution] A filter element 13 which is to be attached to an oil separator unit 3 includes a core 31. This core is a double tube having an internal cylindrical member 34 and an external cylindrical member 35, and a space between the internal cylindrical member and the external cylindrical member is used as a separation chamber 36. An injection hole 39 for injecting blow-by gas while increasing its flow velocity is provided in the internal cylindrical member. A surface which is an inner wall surface of the external cylindrical member and which faces the injection hole is a spraying surface onto which the blow-by gas injected from the injection hole is sprayed. Moreover, an opening for oil discharge from which oil OL condensed on the spraying surface is discharged, and an opening for discharge from which the blow-by gas from which oil mist has been separated is discharged are provided in the core.

Abstract: A mounting board including a pair of patterned electrodes, a lower surface and an upper surface opposed thereto on which a substrate of an electronic component is to be mounted, a pass-through hole penetrating through the upper surface and the lower surface, and a peripheral side surface that defines the pass-through hole. The pass-through hole includes a plurality of penetrating grooves that are cut into the mounting board and penetrate through the upper and lower surfaces. The plurality of penetrating grooves electrically split the pair of patterned electrodes. The pair of patterned electrodes is partly positioned inside the peripheral side surface, and a connection portion connecting the at least one pair of patterned electrodes and at least one pair of patterned electrodes provided on the upper surface of the substrate of the electronic component is to be disposed inside the peripheral side surface that defines the pass-through hole.

Abstract: An illumination assembly is provided which is capable of correcting a color temperature. The assembly includes a substrate with a plurality of coatings applied on a respective plurality of surface portions of a base material. A light emitting device includes one or more light emitting elements of a first color temperature mounted on surface portions of the substrate having a first color coating, and one or more light emitting elements having a second color temperature mounted on surface portions of the substrate having a second color coating. Light emitting elements are individually sealed with a resin containing an excitable phosphor, with a reflectance factor of the first color coating and a reflectance factor of the second color coating set corresponding to light emitted from the light emitting elements having the first and second color temperatures, respectively, with respect to a desired color temperature for the light emitting device.

Abstract: The light emitting device in accordance with the present invention includes a light emitter; a lighting circuit unit including a circuit component for lighting the light emitter; and a housing configured to accommodate the light emitter and the lighting circuit unit. The housing is constituted by: a substrate on which the light emitter and the lighting circuit unit are placed; and a cover attached to the substrate to cover the light emitter and the lighting circuit unit.

Abstract: An LED module structure and a light fixture provided with the structure includes a heat releasing casing; an LED package having an LED chip mounted on a base material, a material having both heat conductance and electric insulation property placed between the heat releasing casing and the LED package upon fitting of the LED package to the heat releasing casing, and a plastic fluid or adhesive agent having particles with high heat conductivity. The material has a groove with outside smaller than an outside dimension of the LED package. The groove receives excess plastic fluid or excess adhesive agent on a surface to which the LED package is firmly attached.

Abstract: [Problem to be Solved] To enhance the performance for separation of oil mist from blow-by gas. [Solution] A filter element 13 which is to be attached to an oil separator unit 3 includes a core 31. This core is a double tube having an internal cylindrical member 34 and an external cylindrical member 35, and a space between the internal cylindrical member and the external cylindrical member is used as a separation chamber 36. An injection hole 39 for injecting blow-by gas while increasing its flow velocity is provided in the internal cylindrical member. A surface which is an inner wall surface of the external cylindrical member and which faces the injection hole is a spraying surface onto which the blow-by gas injected from the injection hole is sprayed. Moreover, an opening for oil discharge from which oil OL condensed on the spraying surface is discharged, and an opening for discharge from which the blow-by gas from which oil mist has been separated is discharged are provided in the core.

Abstract: A mounting board including a pair of patterned electrodes, a lower surface and an upper surface opposed thereto on which a substrate of an electronic component is to be mounted, a pass-through hole penetrating through the upper surface and the lower surface, and a peripheral side surface that defines the pass-through hole. The pass-through hole includes a plurality of penetrating grooves that are cut into the mounting board and penetrate through the upper and lower surfaces. The plurality of penetrating grooves electrically split the pair of patterned electrodes. The pair of patterned electrodes is partly positioned inside the peripheral side surface, and a connection portion connecting the at least one pair of patterned electrodes and at least one pair of patterned electrodes provided on the upper surface of the substrate of the electronic component is to be disposed inside the peripheral side surface that defines the pass-through hole.

Abstract: An LED module structure and a light fixture provided with the structure includes a heat releasing casing; an LED package having an LED chip mounted on a base material, a material having both heat conductance and electric insulation property placed between the heat releasing casing and the LED package upon fitting of the LED package to the heat releasing casing, and a plastic fluid or adhesive agent having particles with high heat conductivity. The material has a groove with outside smaller than an outside dimension of the LED package. The groove receives excess plastic fluid or excess adhesive agent on a surface to which the LED package is firmly attached.

Abstract: An illumination assembly is provided which is capable of correcting a color temperature. The assembly includes a substrate with a plurality of coatings applied on a respective plurality of surface portions of a base material. A light emitting device includes one or more light emitting elements of a first color temperature mounted on surface portions of the substrate having a first color coating, and one or more light emitting elements having a second color temperature mounted on surface portions of the substrate having a second color coating. Light emitting elements are individually sealed with a resin containing an excitable phosphor, with a reflectance factor of the first color coating and a reflectance factor of the second color coating set corresponding to light emitted from the light emitting elements having the first and second color temperatures, respectively, with respect to a desired color temperature for the light emitting device.