Abstract:
PROBLEM TO BE SOLVED: To provide a small, light and low-heat-generating solid lighting device facilitated in light control.SOLUTION: The solid lighting device includes a light source part, a light-guiding part, a heat-transmitting part, and an optical part. The light source part emits a plurality of laser beams in a wave range of bluish-violet to blue color. The light-guiding part guides a plurality of laser beams. The optical part is formed by laminating a first wave guiding path having a first wavelength-transforming layer, a second wave-guiding path having a second wavelength-transforming layer and set on the first wave-guiding path, and a third wave-guiding path set on the second wave-guiding path, and has a top surface, a side surface, and a bottom surface. A first laser beam irradiates the first wavelength-exchanging layer. A second laser beam irradiates the second wavelength-transforming layer. A third laser beam incomes to the third wave-guiding path. First wavelength-transformed light and second wavelength-transformed light having a wavelength shorter than that of the first wavelength-transformed light are emitted from the top surface. The third laser beam is transformed into scattering light and is emitted from the top surface.
Abstract:
PROBLEM TO BE SOLVED: To provide a polarized light irradiation device that can suppress unevenness in a polarization direction of polarized light.SOLUTION: A polarized light irradiation device according to an embodiment comprises: a lamp 22; a plurality of first polarizers 31 that are arranged so as to face the lamp 22; a stage 1 that includes a mounting face 11 and a rear face 12 and further a through hole 13 at a substantially center part of the mounting face 11 and can irradiate an irradiated body W placed on the mounting surface 11 with polarized light Lp emitted from the lamp 22 via the first polarizers 31; a second polarizer 4 that can be placed on the stage 1 so as to block the through hole 13; a polarization direction measurement device 5 that includes a light receiver 52 provided so as to be capable of receiving polarized light Lpp emitted via the second polarizer 4 and supports the stage 1 from a rear face 12 side; and a driving mechanism 6 that is connected to the polarization direction measurement device 5 and is configured to be capable of moving the stage 1, the second polarizer 4 and the polarization direction measurement device 5 in any direction, and rotating the stage 1 and the second polarizer 4.
Abstract:
PROBLEM TO BE SOLVED: To provide an optical semiconductor light source capable of promoting heat radiation and a vehicular lighting device.SOLUTION: An optical semiconductor light source includes an optical semiconductor mounting substrate, semiconductor light-emitting elements fitted on the optical semiconductor mounting substrate, a control substrate with a lower thermal conductivity than that of the optical semiconductor mounting substrate, a circuit element fitted on the control substrate and contained in a drive circuit of each semiconductor light-emitting element, connecting means for electrically connecting the optical semiconductor mounting substrate and the drive circuits, and a first heat radiation member in contact with a rear face of the optical semiconductor mounting substrate for transferring heat released from the semiconductor light-emitting elements outside, among which, the first heat radiating member includes radiating fins.
Abstract:
PROBLEM TO BE SOLVED: To provide a light source device capable of detecting leakage of a coolant from a cooling system for cooling the light source device and preventing damage to a light source and a power source due to adhesion of the coolant.SOLUTION: A light source device includes: a conductive cooling section 1 capable of internally circulating coolant; irradiation sections 21a, 21b connected at the outside of the cooling section 1 so as to be cooled with the coolant; a detection electrode 41 arranged at a position electrically insulated against the cooling section 1 and at a position where the coolant can be crosslinked between the cooling section 1 and the detection electrode 41 when the coolant leaks from the cooling section 1; and a detection section 51 for detecting electric characteristics between the detection electrode 41 and the cooling section 1, and detecting leakage by means of the changes in the electric characteristics.
Abstract:
PROBLEM TO BE SOLVED: To provide a lamp with a two-dimensional barcode that can be read precisely.SOLUTION: A lamp according to an embodiment comprises a burner BN with a curve face, and a metallic band 6 provided on its outer face to hold the burner BN. The metallic band 6 is provided along the curve face of the burner BN, and a two-dimensional barcode 9 is formed on a surface exhibiting a curve face of the metallic band 6. Length B of one side of plural cells 91 constituted in a row direction and a column direction of the two-dimensional barcode 9 is set to 150 μm≤B≤350 μm. Dots 92 constituted by plural laser marks 93 are formed on at least one of the cells 91.
Abstract:
PROBLEM TO BE SOLVED: To provide an ultraviolet fluorescent lamp which has high peelability of a pressure-sensitive adhesive and has a long lifetime in use for a peeling process for the pressure-sensitive adhesive decreasing in adhesive strength by irradiation with ultraviolet light.SOLUTION: An ultraviolet fluorescent lamp 100 is used for the peeling process for the pressure-sensitive adhesive decreasing in adhesive strength by irradiation with ultraviolet light, and includes a discharge container 101, a discharge medium charged in the discharge container 101, electrodes 105a, 105b supplying electric power to the discharge medium, and a phosphor layer 110 applied to the interior of the discharge container 101, the weight ratio of Ce as a first phosphor YPOof the phosphor layer 110, including Ce as the first phosphor YPOand Eu as a second phosphor SrBOto the total amount of Ce as the first phosphor YPOand Eu as the second phosphor SrBObeing 60-95%.
Abstract:
PROBLEM TO BE SOLVED: To provide an ultraviolet irradiation apparatus capable of enlarging the area of an irradiation area by suppressing a fall in ultraviolet illuminance in an end region of a substrate processing part.SOLUTION: The ultraviolet irradiation apparatus includes a substrate treating section 1 on which a substrate A to be treated with ultraviolet rays is arranged, and an ultraviolet irradiation section 2 having a plurality of ultraviolet irradiation units 21 arranged in grated shape to face the substrate treating section 1. The ultraviolet irradiation section 2 includes first ultraviolet irradiation units 21A, and second ultraviolet irradiation units 21B high in the peak value P of ultraviolet illuminance in the position of the substrate treating section 1 and narrow in irradiation area S of irradiating at least the 50% value of the peak value P in comparison with the first ultraviolet irradiation units 21A. The first ultraviolet irradiation units 21A are arranged in a center region in at least partial rows or columns in the array of the ultraviolet irradiation section 2, and the second ultraviolet irradiation units 21B are arranged in the end region.
Abstract:
PROBLEM TO BE SOLVED: To provide a compact tubular heater that can feature a light distribution and has a high load.SOLUTION: The tubular heater includes a long-sized glass tube 1 having a space 13 inside; metal foils 2 sealed to both ends of the glass tube 1; and a filament 3 which has a main part 31 and is connected to the metal foils 2 so as to have the main part 31 arranged in the space 13, and is characterized in that P/V≥0.44 W/mmis satisfied, where P is lamp electric power (W) and V is the volume (mm) of the space 13 where the main part 31 is arranged, the main part 31 has a first coil part 311 and a second coil part 312, and the first coil part 311 has a coil pitch 20% or more less than that of the second coil part 312.
Abstract:
PROBLEM TO BE SOLVED: To provide a foil seal lamp capable of reinforcing a connection between a metal foil and an electrode while suppressing a crack leakage.SOLUTION: There is provided the foil seal lamp including a light emission part 11 which has a discharge space 111 inside, an airtight container 1 having a seal part 12 formed so as to be connected to the light emission part 11, a metal foil 31 sealed to the seal part 12, and an electrode 32 having one end connected to the metal foil 31 and the other end arranged so as to project into the discharge space. The metal foil 31 has, on its plate surface, a processed part 311 having been subjected to roughening processing and an unprocessed part 312 having been subjected to no roughening processing, and the electrode 32 is welded to the metal foil 31 while placed on the unprocessed part 312.
Abstract:
PROBLEM TO BE SOLVED: To provide an ultraviolet irradiation device which can irradiate strong ultraviolet light of 310-380 nm, especially 320-350 nm.SOLUTION: In an ultraviolet irradiation device, a plurality of first fluorescent lamps 2, in which a phosphor layer 22 made of LaPO:Ce is formed as a phosphor having a peak wavelength of 310-340 nm, are disposed in parallel, and a plurality of second fluorescent lamps 3, in which a phosphor layer made of YPO:Ce is formed as a phosphor having a peak wavelength of 340-360 nm, are disposed in parallel so as to be located between the first fluorescent lamps 2.