Low-pressure mercury vapour discharge lamp

Low-pressure mercury vapour discharge lamp

Low-pressure mercury-vapor discharge lamp and amalgam

Low-wattage fluorescent lamp

Luminescence display panel using discharge gas

Luminescent alkaline earth metal orthosilicate, luminescent scre

Luminescent aluminates and mercury vapor discharge lamp containi

Luminescent barium-hexa-aluminate, luminescent screen provided w

Luminescent barium-lithium aluminate phosphors and lamp containi

Luminescent bivalent europium-activated barium borophosphate and

Luminescent coating for low-pressure mercury vapour discharge la

Luminescent device having phosphor particles about .5 micrometer

Luminescent Eu.sup.3+ -activated silicate, luminescent screen pr

Luminescent lead-activated alkaline earth metal rare earth metal

Luminescent material

Luminescent material and discharge lamp containing the same

Luminescent material and discharge lamp containing the same

Luminescent material coated with a protective layer

Luminescent material comprising an alkaline earth borate

Luminescent material for mercury discharge lamp including phosph