A standard mercury vapor lamp
has 60 to 70 percent of its output below 340, and the black acts as a sponge.
Although the total spectral output of such a lamp is very similar to that of a standard mercury vapor lamp
, the spectral bands actually shift toward longer wavelength.
Fifty-three percent of the patients treated by ophthalmologists had used bed/booth devices, 17 percent had used reflective bulbs, 11 percent used mercury vapor lamps
, and 20 percent used unspecified UV devices.
Thus, a standard camera rated for incandescent light will have considerably less sensitivity when observing a scene lighted by mercury vapor lamps
Emerging lighting technologies - technology Electronic ballast based, Pulse start, Substrate materials, Laser lift-off, Temporary bonding, Binning, Surface texturing, Phosphor composition and deposition, High Pressure Mercury Vapor Lamps
, Low Pressure Mercury Vapor Lamps
, Tungsten photonic lattice, and others
UV LED lamps are alternatives to the mercury vapor lamps
that have been around for more than 130 years.
Through that work, the company generates a variety of hazardous wastes, including paint and solvent wastes, used oil, and used fluorescent and mercury vapor lamps
, according to the EPA
93 for the mercury vapor lamps
(Ravi and others 1993).
Additionally, the manufacture of general-purpose mercury vapor lamps
will be banned after January 1, 2016.
If you want even more functionality than the traditional PLC power supply provides, you may choose a new 27-step unit capable of up to 600w and running either Metal Halide or Mercury Vapor lamps
Generally, high-pressure sodium lamps are considered the most efficient with instant restrike capability; metal halide lamps provide the best color rendering for dramatic highlights and sports lighting; and mercury vapor lamps
, with very long lives, are preferred for landscape and sign lighting.
Many outdoor lighting security systems depend on mercury vapor lamps