Abstract: An illuminated protective headgear is described that includes a safety helmet with a molded shell adapted to fit over a user's head, the shell having a rear section; a battery-powered light mounting bracket on the rear section of the shell; and a battery-powered light including an attachment clip adapted for releasable attachment to the light mounting bracket. The light mounting bracket may be an attachable bracket that can be secured to the rear section of an existing safety helmet, or a mounting bracket that is integrally molded as a part of the rear section of the helmet shell.

Abstract: A safety light kit is described that includes a plurality of battery-powered safety lights and an plurality of safety light stands, each of the stands including a ferrous mounting plate, and a support member adapted to support the ferrous mounting plate in a generally upright orientation on a horizontal surface. The kit can also include additional mounting mechanisms such as a rectangular plate having a front face for attachment of a light, and a rear surface for use in attaching said mounting mechanism to a generally vertical surface and/or a flexible pouch having a safety light-receiving cavity with a transparent front face. The lights can also be used in combination with a stand or other mounting mechanism independent of the kit.

Abstract: A class of aromatic-substituted xanthene compounds useful as fluorescent dyes is disclosed, the compounds having the general structure where Y.sub.1 and Y.sub.2 taken separately are selected from the group consisting of hydroxyl, oxygen, imminium, linking group and amine, or Y.sub.1 taken together with R.sub.2 is cyclic imine, or Y.sub.2 taken together with R.sub.3 is cyclic amine; R.sub.2, R.sub.3, R.sub.5, and R.sub.7 taken separately are selected from the group consisting of hydrogen, fluorine, chlorine, lower alkyl, lower alkene, lower alkyne, sulfonate, sulfone, amino, imminium, amido, nitrile, lower alkoxy, phenyl, and linking group; R.sub.1 taken separately is selected from the group consisting of phenyl, substituted phenyl, polycyclic aromatic, substituted polycyclic aromatic, linking group and electron-rich heterocycle, or when taken together with R.sub.7 is selected from the group consisting of electron-rich heterocycle and indene; R.sub.