Quote Originally Posted by Seamus Fermanagh View Post
A standard incandescent bulb, with the glass or plastic out cover tinted green, is still emitting the same light frequency, even it is re-filtered by the particular coating being used.

Being picky, I would say "limited translucency." A truly opaque bulb would emit no visible light, only ultra or infra wavelengths. Just being snarky.
'Opaque 1.
not able to be seen through; not transparent.
"bottles filled with a pale opaque liquid"
synonyms: non-transparent, cloudy, filmy, blurred, smeared, hazy, misty, dirty, dingy, muddy, muddied, grimy, smeary
"the bottle was made of opaque glass so that the contents could not be seen"'

So a white light bulb or pearl using the marketing terms where you cannot see the filament. CFLs use these almost all the time.