Abstract:
A vapor discharge lamp which produces visible light energy and energy in the middle and near ranges of the ultraviolet region of a quantity from between about 6 to 50 and 150 to 700 microwatts respectively per lumen of visible light produced.
Abstract:
A fluorescent lamp having end caps with electrical contact members mounted directly thereon through which the lamp is to be connected to a fixture to supply current to the lamp, and in which the mounting leads for the cathode of each end cap are connected directly to these electrical contacts. The end caps are also formed to accept an end of the envelope of a fluorescent lamp for direct attachment thereto. In a further embodiment of the invention an end cap is provided having a tubulation which can be sealed by infra-red energy.
Abstract:
Electric lamps having spectral radiation characteristics approximating natural daylight with a controlled amount of energy in the near and middle ultraviolet ranges which also produce light of sufficient intensity and proper color to make them usable as general illuminants.