Abstract: A liquid crystal projector comprises first, second and third liquid crystal panels having corresponding light sources, namely a red light source, a green light source, and a blue light source, wherein the red light source. The light sources are preferably Semi-conductor generated light arrays. The projector further includes a dichroic prism for superimposing the red, green and blue image displays, and a projection lens for projecting a full-color image beam formed by the dichroic prism. In order to control the intensity of the light sources, a pulse modulating means is coupled to each of the Semi-conductor generated light arrays, the pulse modulating means being operable to independently switch each of the light sources between an on state and an off state at a selectable repetition rate.

Abstract: A compact video projection and viewing system for use with RMI apparatus is constructed of materials that are inert to magnetic imaging and do not cause interference with the procedure. The system uses an LCD as a source of a viewable image and an optical arrangement to magnify the image and redirect the image in a lateral path to a screen. An adjustable viewing mirror is used to capture the reflection of the screen and transfer the image to a patient.

Abstract: An eye imaging system having an image viewing subsystem for interfacing with an MRI patient. The imagine viewing subsystem incorporates fiber-optic illumination and imaging subsystems that enable automatic eye imaging for eye tracking. The eye imaging system analyzes motion of an patient's eye in response to visual stimuli and includes an image conveyor subsystem, an image receiving subsystem, and an image processing subsystem. The light source utilized to form the reflected images is an independent source of illumination.

Abstract: A liquid crystal projector comprises first, second and third liquid crystal panels having corresponding light sources, namely a red light source, a green light source, and a blue light source, wherein the red light source. The light sources are preferably Semi-conductor generated light arrays. The projector further includes a dichroic prism for superimposing the red, green and blue image displays, and a projection lens for projecting a full-color image beam formed by the dichroic prism. In order to control the intensity of the light sources, aa pulse modulating means is coupled to each of the Semi-conductor generated light arrays, the pulse modulating means being operable to independently switch each of the light sources between an on state and an off state at a selectable repetition rate.

Abstract: A loop material for a hook and loop fastening system composed of: 1) a backing material; and 2) a layer of a nonwoven spunbond web attached to the backing material, the nonwoven spunbond web comprising a plurality of continuous intertwined filaments, each having a diameter of about 25 to about 100 microns, the plurality of filaments laid randomly to define a plurality of intertwined loop springs, each having a diameter of about 0.5 to about 3 millimeters.

Abstract: The instant invention is a display system that provides visual stimuli to a patient who is undergoing diagnostic treatment within a magnetic resonance imaging apparatus. The system utilizes a pair of lightweight fiber optic video glasses having a hollow chamber wherein a prism with mirrors splits a visual image supplied through a fiber optic cable connected to an LCD projector. The projector uses a series of lenses for coupling a signal received from a video interface which monitors the use of an external VCR or television utilizing a standard NTSC format video signal. The visual image is projected onto the inner surface of reflective lenses which allows the patient to view the image as well as see through the lens providing a HUD type display.