Reflectors just reflect the light absorbers actually absorb it.
Yes, drywall is a light reflector.
Palmyra Reflector was created in 1829.
Palmyra Reflector ended in 1831.
Gospel Reflector was created in 1841.
Gospel Reflector ended in 1841.
Reflector - newspaper - was created in 1884.
They both use a parabolic reflector.
as a neutron reflector to allow use of a smaller core
Yes, you can definitely replace reflector lampes with LED reflector lamps. I got a Lighting Ever LED reflector before, so no problem I think.
Bicycles need a reflector on the spokes of the wheels.
Most telescopes use refractor lenses. Sometime a telescope will use reflector lenses.