What does "field of view" refer to in the context of projectors?

In the context of projectors, "field of view" refers to the extent of the observable area that can be seen through the projector lens. This concept is crucial because it determines how much of the projected image will be visible to the audience based on the projector's placement and the lens characteristics. A wider field of view allows more of the image to be seen, making it essential for ensuring that the entire audience can view the content without missing any parts of the projection.

Understanding the field of view aids in selecting the appropriate projector for a specific space and ensures that the projected image fits well within the boundaries of the screen or wall on which it is displayed. Proper alignment and lens choice can affect how the projector's field of view serves the intended audience size and room layout.

The other answers touch on different aspects of projection but do not capture the specific meaning of "field of view." Clarity addresses image resolution and focus, brightness pertains to the intensity of the light output, and distance relates to the placement of the projector in relation to the screen—none of which define the extent of the observable area.