Abstract: An infrared optical system includes: a spherical lens unit having an image-forming function as a whole and including one or more spherical lenses that form an image of an incident light beam from a subject; an aperture diaphragm unit that limits transmission of the incident light beam through the spherical lens unit; an aberration correcting plate unit that is disposed at a preceding stage of the spherical lens unit, has at least one aspherical surface, and gives an optical path length difference for compensating an aberration to be generated in the spherical lens unit to the incident light beam; and a lens barrel unit holding the spherical lens unit, the aperture diaphragm unit, and the aberration correcting plate unit.

Abstract: A temperature measuring device includes: a thermal infrared illuminating unit that irradiates with thermal infrared light a target whose temperature to be measured; a thermal infrared illumination image acquiring unit that acquires a thermal infrared illumination image including an image of the target; a thermal infrared image acquiring unit that acquires a thermal infrared image including the image of the target; a visible light image acquiring unit that acquires a visible light image including the image of the target; a calculating unit that calculates an image expansion amount of the image of the target based on the acquired visible light image and the acquired IR illumination image; an adding unit that adds the calculated image expansion amount to luminance of the image of the target; and a measuring unit that measures a temperature of the target based on the image of the target with the image expansion amount.

Abstract: In a thermal infrared detector having trench structures, at least one sensor element is provided between the trench structures, an etching hole through which the sensor element is hollowed out and thereby thermally insulated is provided in a substrate rear surface or on the periphery of a pixel area, and an opening portion is provided below the pixel area.

Abstract: This temperature measuring device includes: a case which has a bottomed tubular shape with a closed portion at one end and an opening at the other end, and in which a temperature sensing part is disposed on the side of the closed portion; an infrared temperature sensor unit in which an infrared temperature detection unit that has a light-receiving surface receiving an infrared ray and detects the received infrared ray and outputs the ray in the form of an electrical signal is disposed opposite the temperature sensing part while being spaced therefrom inside the case; and a connection terminal unit which has in the interior thereof a circuit unit that acquires the electrical signal and that generates temperature information so that the temperature information is outputted to an external device, wherein the connection terminal unit can be disposed at a position spaced from the heat source.

Abstract: This temperature measuring device includes: a case which has a bottomed tubular shape with a closed portion at one end and an opening at the other end, and in which a temperature sensing part is disposed on the side of the closed portion; an infrared temperature sensor unit in which an infrared temperature detection unit that has a light-receiving surface receiving an infrared ray and detects the received infrared ray and outputs the ray in the form of an electrical signal is disposed opposite the temperature sensing part while being spaced therefrom inside the case; and a connection terminal unit which has in the interior thereof a circuit unit that acquires the electrical signal and that generates temperature information so that the temperature information is outputted to an external device, wherein the connection terminal unit can be disposed at a position spaced from the heat source.

Abstract: In a thermal infrared detector having trench structures, at least one sensor element is provided between the trench structures, an etching hole through which the sensor element is hollowed out and thereby thermally insulated is provided in a substrate rear surface or on the periphery of a pixel area, and an opening portion is provided below the pixel area.

Abstract: A tunnel magneto-resistance (TMR) magnetic sensor and its manufacturing method are provided in which its degradation of the degree of accuracy of angle detection or the like is not caused due to an electrical discharge current by static electricity. The TMR magnetic sensor includes a TMR sensor element formed on a first face of a substrate with an insulation film interposing therebetween; a conductive material formed on the first face of the substrate, being electrically connected to the substrate; and a passivation film surrounding a surface of the TMR sensor element and that of the conductive material, wherein at least a portion of the conductive material faces toward an opening portion formed in the passivation film.

Abstract: A tunnel magneto-resistance (TMR) magnetic sensor and its manufacturing method are provided in which its degradation of the degree of accuracy of angle detection or the like is not caused due to an electrical discharge current by static electricity. The TMR magnetic sensor includes a TMR sensor element formed on a first face of a substrate with an insulation film interposing therebetween; a conductive material formed on the first face of the substrate, being electrically connected to the substrate; and a passivation film surrounding a surface of the TMR sensor element and that of the conductive material, wherein at least a portion of the conductive material faces toward an opening portion formed in the passivation film.