Under what circumstances would rear screen projection be preferred over front screen projection?

Rear screen projection is preferred in situations involving high ambient light from windows due to its unique setup and characteristics. When projecting from the back of a screen, the light is not directly affected by ambient light sources in the same way it would be for front screen projection. This is because, in rear projection, the projector sits behind the screen, and the image is projected through the screen material.

This setup allows the brightness of the displayed image to be less impacted by incoming light, significantly reducing the chances of washout that can occur with front projection when there is substantial ambient light. As a result, audiences can still see a clear image even in environments where lighting conditions are challenging.

In contrast, the other scenarios, such as a stationary presenter, limited screen space, or an audience seated closely, do not specifically leverage the advantages of rear screen projection in mitigating ambient light issues. Each of those situations can be adequately managed with front projection techniques, which may include the use of screens designed for such conditions, but they do not present the same strong justification for opting for rear screen projection as high ambient light does.