Halogen and Incandescence Lamps

Laser induced white emission generation from La1−xNdxAlO3 nanocrystals

“…They gave rise to the blackbody emission phenomena; however, they also had some drawbacks, such as low efficiency and short lifetimes. 1 With this and the environmental impact in mind, the European Commission phased out the commercialization of such lamps in 2012, 2 substituting them with more efficient compact fluorescence lamps which employ ultraviolet emission from a low-pressure mercury discharge converted to white light by a phosphor layer on a glass tube 3,4 and light emitting diodes (LEDs). Two common approaches were described to achieve white light in LEDs: (1) the use of a blue-emitting diode to excite a yellow phosphor and (2) an appropriate mixture of red, green and blue emitting phosphors.…”

Rapid identification of Salmonella serotypes through hyperspectral microscopy with different lighting sources

“…With this process, tungsten atoms are evaporated on the filament and then react with the gaseous halogen vapour, along with trace amounts of oxygen to form tungsten oxyhalide. 14 The benefit of regenerative halogen is that it allows for a smaller glass envelope, resulting in a more economical use of quartz and glass alloys, with approximately 200 h of life expectancy. 15 Both lighting sources were housed in enclosed boxes and kept next to the microscope setup, instead of underneath the slide stage.…”