What is a condensing lens for a Projector?

Question

Im working on a project and I need information on what it means /: please help

Answer

A projector has four main elements:

    electric incandescent light bulb or other light source (usually fan-cooled)
    reflector and "condensing" lens to direct the light to the slide
    slide holder
    focusing lens
en.wikipedia.org/wiki/Slide_projector

What is a condensing lens for a Projector?

Answers (1)