Aperture:

Period of time when the manufacturer will guarantee the projector against defects.

Aspect Ratio:

The ratio between the height and width of the picture.

Brightness:

The overall brightness of the screen during normal operation. Brighter screens are better for use in lighted areas.

Contrast Ratio:

A measure of the contrast between the brightest white and darkest black the projector can display. Higher ratios provide better pictures, especially in bright environments.

Fan Noise:

A measure of how loud the cooling fan is during normal operation. Measured in decibels.

Image Size:

Physical measurement of the size of the picture displayed. Measured diagonally in inches.

Keystone Correction:

The ability to change the shape of the projected image to adjust for distortion from displaying at an angle.

Lamp Life:

Estimated lifespan for the lamp before it must be replaced.

Operational Noise:

How loud the projector is during normal operation. Measured in decibels.

Power Consumption:

A measure of how much electricity the projector consumes during normal use.

Projector Depth:

The physical depth of the projector. Measured in inches.

Projector Height:

The physical height of the projector. Measured in inches.

Projector Warranty:

Period of time when the manufacturer will guarantee the projector against defects.

Projector Weight:

The physical weight of the projector. Measured in pounds.

Projector Width:

The physical width of the projector. Measured in inches.

Resolution:

The quality of the image determined by how many lines of visual information are packed into the picture. Higher resolution results in sharper pictures.

Synchronization Range Horizontal:

The rate at which the lines of resolution are displayed horizontally. Measured in hertz (cycles per second).

Synchronization Range Vertical:

The rate at which the lines of resolution are displayed vertically. Measured in hertz (cycles per second).

Throw Distance:

The distance at which the projector can display an image without losing focus or image quality.