Abstract: A light assembly that includes a cover, a housing coupled to the cover, and a lamp base coupled to the cover. The light assembly also includes a first circuit board disposed within the housing. The first circuit board has a plurality of light sources thereon. A heat sink is thermally coupled to the light sources and is disposed within the housing. The heat sink includes openings therethrough. Each of the outer edges is in contact with the housing. The light assembly also includes an elongated control circuit board assembly electrically coupled to the light sources of the first circuit board and the lamp base. The control circuit board extends through the openings. The control circuit board has a plurality of electrical components thereon for controlling the light sources.

Abstract: A light assembly that includes a cover, a housing coupled to the cover, and a lamp base coupled to the cover. The light assembly also includes a first circuit board disposed within the housing. The first circuit board has a plurality of light sources thereon. A heat sink is thermally coupled to the light sources and is disposed within the housing. The heat sink includes openings therethrough. Each of the outer edges is in contact with the housing. The light assembly also includes an elongated control circuit board assembly electrically coupled to the light sources of the first circuit board and the lamp base. The control circuit board extends through the openings. The control circuit board has a plurality of electrical components thereon for controlling the light sources.

Abstract: A method for determining radiation exposure from chromosome abnormalities present in a specimen by determining the location or locations of the centromere of each chromosome in a cell in an image of a metaphase cell by segmentation of an accurately drawn chromosome centerline followed by selection of a longitudinal cross-section with the minimum width or intensity or width and intensity; counting the number of centromeres in each chromosome in each cell; computing the frequency of dicentric chromosomes in a population of cells; and determining the radiation dose by comparing the computed frequency of dicentric chromosomes with a previously determined dose-response curve from a calibrated source.

Abstract: A method for determining radiation exposure from chromosome abnormalities present in a specimen by determining the location or locations of the centromere of each chromosome in a cell in an image of a metaphase cell by segmentation of an accurately drawn chromosome centerline followed by selection of a longitudinal cross-section with the minimum width or intensity or width and intensity; counting the number of centromeres in each chromosome in each cell; computing the frequency of dicentric chromosomes in a population of cells; and determining the radiation dose by comparing the computed frequency of dicentric chromosomes with a previously determined dose-response curve from a calibrated source.

Abstract: A light assembly that includes an elongated housing, a reflective parabolic cylindrical surface within the elongated housing having a focal line and an elongated cover coupled to the elongated housing. The light assembly also includes a plurality of light sources spaced apart longitudinally and emitting light toward the parabolic cylindrical surface. The parabolic cylindrical surface reflects light from the light sources out of the housing through the cover.

Abstract: A light assembly having an axis of symmetry that includes an enclosure comprising at least a base and a cover coupled to the base. The light assembly also includes a plurality of light sources disposed on a circuit board within the enclosure in a first ring having a center point aligned with the axis of symmetry. The light assembly also includes a reflector that has a first focal point within the cover and a plurality of second focal points disposed in a second ring coincident with the first ring.

Abstract: A light assembly that includes an enclosure, a circuit board having a plurality of light sources disposed within the enclosure, and a plurality of light redirection elements associated with a respective one of the plurality of light sources. Each of the light redirection elements directs light toward a common point within the enclosure.

Abstract: A light assembly that includes a base, a housing extending from the base having a partial paraboloidal cross-sectional surface, a light-shifting element disposed within the housing, and a plurality of light sources coupled to the housing. The light sources generate light. The light assembly also includes an angular portion reflecting light from the light sources toward the parabolic cross-sectional surface so that the light reflected from the parabolic surface is directed toward the light-shifting element and light reflected from the light-shifting element is directed out of the housing after reflecting from the housing.

Abstract: A light assembly 1100 includes a cover 18, a housing 16 coupled to the cover 18 and a lamp base 14 coupled to the cover 18. The light assembly 1100 also includes a first circuit board 30 disposed within the housing 16. The first circuit board 30 has a plurality of light sources 32 thereon. A heat sink 210 is thermally coupled to the light sources 32. The heat sink 32 includes a plurality of spaced-apart layers 1140 having outer edges and openings therethrough. Each of the outer edges 1144 are in contact with the housing 16. The light assembly also includes an elongated control circuit board assembly 1110 electrically coupled to the light sources 32 of the first circuit board 30 and the lamp base 14. The control circuit board 1110 extends through the openings 1170. The control circuit board 1110 has a plurality of electrical components 1112 thereon for controlling the light sources 32.

Abstract: A light assembly having an axis of symmetry that includes an enclosure comprising at least a base and a cover coupled to the base. The light assembly also includes a plurality of light sources disposed on a circuit board within the enclosure in a first ring having a center point aligned with the axis of symmetry. The light assembly also includes a reflector that has a first focal point within the cover and a plurality of second focal points disposed in a second ring coincident with the first ring.

Abstract: A light assembly that includes a cover, a housing coupled to the cover, and a lamp base coupled to the cover. The light assembly also includes a first circuit board disposed within the housing. The first circuit board has a plurality of light sources thereon. A heat sink is thermally coupled to the light sources and is disposed within the housing. The heat sink includes openings therethrough. Each of the outer edges is in contact with the housing. The light assembly also includes an elongated control circuit board assembly electrically coupled to the light sources of the first circuit board and the lamp base. The control circuit board extends through the openings. The control circuit board has a plurality of electrical components thereon for controlling the light sources.

Abstract: A light assembly that includes an elongated housing, a reflective parabolic cylindrical surface within the elongated housing having a focal line and an elongated cover coupled to the elongated housing. The light assembly also includes a plurality of light sources spaced apart longitudinally and emitting light toward the parabolic cylindrical surface. The parabolic cylindrical surface reflects light from the light sources out of the housing through the cover.

Abstract: A light assembly that includes a base, a housing extending from the base having a partial paraboloidal cross-sectional surface, a light-shifting element disposed within the housing, and a plurality of light sources coupled to the housing. The light sources generate light. The light assembly also includes an angular portion reflecting light from the light sources toward the parabolic cross-sectional surface so that the light reflected from the parabolic surface is directed toward the light-shifting element and light reflected from the light-shifting element is directed out of the housing after reflecting from the housing.

Abstract: A light assembly that includes an enclosure, a circuit board having a plurality of light sources disposed within the enclosure, and a plurality of light redirection elements associated with a respective one of the plurality of light sources. Each of the light redirection elements directs light toward a common point within the enclosure.

Abstract: A light assembly 1100 includes a cover 18, a housing 16 coupled to the cover 18 and a lamp base 14 coupled to the cover 18. The light assembly 1100 also includes a first circuit board 30 disposed within the housing 16. The first circuit board 30 has a plurality of light sources 32 thereon. A heat sink 210 is thermally coupled to the light sources 32. The heat sink 32 includes a plurality of spaced-apart layers 1140 having outer edges and openings therethrough. Each of the outer edges 1144 are in contact with the housing 16. The light assembly also includes an elongated control circuit board assembly 1110 electrically coupled to the light sources 32 of the first circuit board 30 and the lamp base 14. The control circuit board 1110 extends through the openings 1170. The control circuit board 1110 has a plurality of electrical components 1112 thereon for controlling the light sources 32.