Abstract: A non-contact blood vessel analyzer includes an image acquisition device and an image processing device. The image acquisition device acquires an image which is a moving image or successive still images of a blood vessel. The image processing device detects a beat and a thrill from temporal change of an index derived from brightness and/or chromaticity of the image.

Abstract: Provided is a lighting device for inspection allowing inspection using lights of a plurality of colors with a simple structure. The lighting device includes: a housing; four light source units disposed inside the housing; a light guide plate that guides light emitted from the light source units and that has four end face portions; and a reflective portion that is formed on an upper face of the light guide plate and that reflects light toward a lower face of the light guide plate. Each of the light source units is disposed for each of the end face portions of the light guide plate and is able to emit light of one color and is independently controlled for dimming, and the four light source units are able to emit lights of collectively two or more colors.

Abstract: Provided is a lighting device for inspection allowing inspection using lights of a plurality of colors with a simple structure. The lighting device includes: a housing; four light source units disposed inside the housing; a light guide plate that guides light emitted from the light source units and that has four end face portions; and a reflective portion that is formed on an upper face of the light guide plate and that reflects light toward a lower face of the light guide plate. Each of the light source units is disposed for each of the end face portions of the light guide plate and is able to emit light of one color and is independently controlled for dimming, and the four light source units are able to emit lights of collectively two or more colors.

Abstract: An inspection device is disclosed and includes: an illuminator and a camera, the illuminator including: a housing; light source disposed in the housing; and a light guide plate having an end surface, an upper surface provided with a large number of two-dimensionally arrayed transparent hemispherical bodies formed thereon, and a lower surface, the light guide plate disposed in the housing in a state where the end surface faces the light source so as to introduce light from the light source, to reflect the light downward by the hemispherical bodies, and to irradiate an article placed below the lower surface with the light; and the camera being disposed above the upper surface of the light guide plate 6 to receive reflected light from the article and to photograph the article.