Abstract: An efficient lighting unit with improvements in ease of moving its head, reliability and the like is provided. The lighting unit includes: heads 6A and 6B defining illuminating apertures 6Aa and 6Ba, respectively, for directing light to an object W to be illuminated, the heads 6A and 6B being supported by a movable support member 1; LED light source devices 5A and 5B mounted at the movable support member 1 for emitting light when supplied with electric power from an electric power source 3 disposed separately from the movable support member 1 through an electric cable 4; and flexible optical fibers 7A and 7B for guiding light from the LED light source devices 5A and 5B to the respective illuminating apertures 6Aa and 6Ba of the heads 6A and 6B.

Abstract: A light irradiating unit comprises an LED 5 and a housing 2 into which the LED 5 is incorporated and that has a heat dissipating portion wherein the housing 2 has a first housing element 21 and a second housing element 22 each of which is joined serially along a predetermined axial line, and further comprises a pressing arrangement 3 that fixes the LED 5 with pressure between a first pressing face 3b arranged at the first housing element 21 side and a second pressing face 3a arranged at the second housing element 22 side accompanied by joining the first and the second housing elements 21, 22 and a positioning arrangement 4 that positions the LED 5 so as to align an optical axis of the LED 5 with the predetermined axial line accompanied by joining the first and the second housing elements 21, 22.

Abstract: An electric power supply system is provided to recognize a type or a desired operating condition of a connected LED lighting unit automatically and to supply electric power corresponding to the type or the operating condition.

Abstract: A light irradiating unit is provided which is easy to manufacture with a large light production that is stable in luminous intensity and superior in life duration. The light irradiating unit comprises an illuminant loading member that has a curved illuminant loading face on which a plurality of illuminants are loaded, a holding frame that holds the illuminant loading member and a tabular heat-dissipating member that has predetermined elasticity and/or flexibility. The heat-dissipating member is attached to a back face of the illuminant loading member and a supporting face of the holding frame that faces to the back face of the illuminant loading face respectively by making use of its elasticity and/or flexibility.

Abstract: On the light radiation device X6A side, a box structure is provided in which a lens is held one by one proximate to or close to the light emission end of each optical fiber. On the light source device side, a common casing houses a first light source lens that generally collimates the radiation light beams radiated from an LED and a second light source lens that condenses the light beams from the first light source lens and introduces the condensed light beams to the light introduction end of the optical fiber bundle. Thus, the current demands of tests on a piece of work can be fully satisfied in view of the light condensing area and the light condensing efficiency while making the best of the characteristics of the illumination system in which the light radiation device and the light source device are separated with an intervention of the optical fibers.

Abstract: A cost effective and small illuminating apparatus for testing includes an illuminant having a predetermined illumination angle, a first lens for converging light from the illuminant and converting the light into collimated light, and a second lens for converging light which has passed through through-holes formed in a tested target after having been emitted from the first lens as the collimated light and for making an imager take in the light.

Abstract: A small or size-reduced lighting apparatus for an inspection is disclosed. The lighting apparatus for an inspection comprises a lighting portion 3 having a large number of light emitters 2 provided circularly, and a guide member 5 including a large number of reflecting portions 6 for reflecting a part of lights emitted from the light emitters 2 and guiding the same light to an inspection object provided in a lower position, wherein the light for inspection which has been applied on and reflected by the inspection object can be fetched through the apertures among the reflecting portions.

Abstract: An object of the present invention is to provide plant cultivator for research purposes for finding the optimum cultivation environment for plants, using LEDs as light source and a control system therefor. An illumination window 6 is provided in top face 5a of a cabinet body 2 surrounded by thermally insulating walls. In addition, an LED illumination element 16 is arranged in this illumination window 6 and in the vicinity of LED illumination element 16, there is provided LED control means that controls the LED illumination element 16. In addition, in cabinet body 2, there are provided at least some of a growth detection sensor that detects the state of growth of the plants, cultivation environment monitoring means that monitors the cultivation environment of the plants and cultivation environment generating means that generates the cultivation environment; and cultivation environment control means is provided that controls the cultivation environment generating means.

Abstract: The present invention provides an image recognition method whereby the influence of noise due to fluctuations of the ambient environment can be minimized and which has good response and high recognition accuracy, without using binary processing.

Abstract: In a lighting device according to the present invention, light emitted from a light source (L1) is introduced to a light guide input terminal of a fiber bundle (3) in which a plurality of optical fibers (2) are bundled and is used for illumination by being emitted from a light guide output terminal (2b); the light source (L1) consists of a plurality of LEDs and the light from each LED is respectively introduced to one or more optical fibers (2).

Abstract: The present invention provides an inspection illuminator capable of reliably detecting defects on the inspection face of articles to be inspected, while making the brightness of light uniform. In this inspection illuminator, a plurality of illuminant rows are provided, in each of which a multiplicity of illuminants 4 are circularly aligned so as to encircle an opening 1K formed approximately in the center; a plurality of annular transparent bodies 6 for dispersing light from the illuminants of the illuminant rows and guiding such light toward the central axis side of the opening 1K are layered in front of such illuminant rows in a state of being optically shielded with shielding means 7; and the light emitting faces 6A of the transparent bodies 6 are formed into an incline plane such that the upper part thereof is closer to the central axis.

Abstract: An object of the present invention is to provide plant cultivator for research purposes for finding the optimum cultivation environment for plants, using LEDs as light source and a control system therefor. An illumination window 6 is provided in top face 5a of a cabinet body 2 surrounded by thermally insulating walls. In addition, an LED illumination element 16 is arranged in this illumination window 6 and in the vicinity of LED illumination element 16, there is provided LED control means that controls the LED illumination element 16. In addition, in cabinet body 2, there are provided at least some of a growth detection sensor that detects the state of growth of the plants, cultivation environment monitoring means that monitors the cultivation environment of the plants and cultivation environment generating means that generates the cultivation environment; and cultivation environment control means is provided that controls the cultivation environment generating means.

Abstract: The present invention provides an inspection illuminator capable of reliably detecting defects on the inspection face of articles to be inspected, while making the brightness of light uniform. In this inspection illuminator, a plurality of illuminant rows are provided, in each of which a multiplicity of illuminants 4 are circularly aligned so as to encircle an opening 1K formed approximately in the center; a plurality of annular transparent bodies 6 for dispersing light from the illuminants of the illuminant rows and guiding such light toward the central axis side of the opening 1K are layered in front of such illuminant rows in a state of being optically shielded with shielding means 7; and the light emitting faces 6A of the transparent bodies 6 are formed into an incline plane such that the upper part thereof is closer to the central axis.