1.1 Flashcards
Direct light source
A source that emits light from itself
Direct light
Light that comes from a lamp or the sun
Indirect light source
An object that does not give off light of its own but only reflects light
Indirect light
Light from an indirect light source
Diffuse reflection
A smart board or tablet that reflects the light from the projector in all directions
Divergent light beam
<
Sun
Parallel light beam
=
Laser
Convergent light beam
> Magnify glass
Absorption
What an object retains light from another object
White object (in white light)
Reflects all colours
Blue object (in white light)
Absorbs all colours except blue, which it reflects
Black object (in white light)
Absorbs all colours
Modern LED lamps contain the (3) colours
Red, green, blue
You can create colours with white lights by…
Putting filters infront of tgen
A filter…
Only lets 1 colour through
The rest it absorbs
