A filter wheel just in front of the detectors allows the selection of a particular infrared wavelength range.

The filter wheel can be lowered out of the lens' path for non-3D material.

Early color film scanners used a halogen lamp and a three-color filter wheel, so three exposures were needed to scan a single color image.

It also has a filter wheel, with a slightly different set of filters.

Each telescope [T] is equipped with a four-position filter wheel.

Thirteen rotating filter wheels produce multiple images of the same scene at different wavelengths.

The filter wheel is turning at a rate of 4 Hz, changing between the filters of the photometric system.

Another system that uses a filter wheel is Dolby 3D.

To counteract the issue of having a special projector with a filter wheel, Kelley began tinting alternate frames of his film red and green.

The patent describes systems using two-color or three-color filter wheels.