Stereoscopic device, comprising: an image directing assembly, having a first light inlet arranged to receive a first plurality of light rays [1178 and 1180] associated with a first image of an object and a second light inlet arranged to receive a second plurality of light rays [1182 and 1184] associated with a second image of said object, said first and said second light inlets are positioned at the front of said stereoscopic device along a longitudinal axis of said stereoscopic device, said first light inlet being spaced apart from said second light inlet; an image differentiator, arranged to differentiate between said first plurality of light rays and said second plurality of light rays; and a single light sensor array, arranged to separately detect each of said first image and said second image; said stereoscopic device further comprising: a single optical assembly located in front of said light sensor array, said optical assembly arranged to focus said first plurality of light rays and thereby to produce said first image, and arranged to focus said second plurality of light rays and thereby to produce said second image; a controller coupled with said image differentiator and with said light sensor array, said controller arranged to operate every sensor of said light sensor array, said controller enabling in accordance with said image differentiaton said light sensor array to detect light rays of said first plurality of light rays and said controller arranged to operate every sensor of said light sensor array, to detect light rays of said second plurality of light rays,, wherein said image directing assembly, said single optical assembly, said image differentiator and said light sensor array are located in an endoscope, and wherein within said endoscope a path length of respective ones [1178 and 1180] of said first plurality of light rays equals a path length of respective ones [1182 and 1184] of said second plurality of light rays. an image directing assembly, having a first light inlet arranged to receive a first plurality of light rays [1178 and 1180] associated with a first image of an object and a second light inlet arranged to receive a second plurality of light rays [1182 and 1184] associated with a second image of said object, said first and said second light inlets are positioned at the front of said stereoscopic device along a longitudinal axis of said stereoscopic device, said first light inlet being spaced apart from said second light inlet; an image differentiator, arranged to differentiate between said first plurality of light rays and said second plurality of light rays; and a single light sensor array, arranged to separately detect each of said first image and said second image; said stereoscopic device further comprising: a single optical assembly located in front of said light sensor array, said optical assembly arranged to focus said first plurality of light rays and thereby to produce said first image, and arranged to focus said second plurality of light rays and thereby to produce said second image; a controller coupled with said image differentiator and with said light sensor array, said controller arranged to operate every sensor of said light sensor array, said controller enabling in accordance with said image differentiaton said light sensor array to detect light rays of said first plurality of light rays and said controller arranged to operate every sensor of said light sensor array, to detect light rays of said second plurality of light rays,, wherein said image directing assembly, said single optical assembly, said image differentiator and said light sensor array are located in an endoscope, and wherein within said endoscope a path length of respective ones [1178 and 1180] of said first plurality of light rays equals a path length of respective ones [1182 and 1184] of said second plurality of light rays. a single optical assembly located in front of said light sensor array, said optical assembly arranged to focus said first plurality of light rays and thereby to produce said first image, and arranged to focus said second plurality of light rays and thereby to produce said second image; a controller coupled with said image differentiator and with said light sensor array, said controller arranged to operate every sensor of said light sensor array, said controller enabling in accordance with said image differentiaton said light sensor array to detect light rays of said first plurality of light rays and said controller arranged to operate every sensor of said light sensor array, to detect light rays of said second plurality of light rays,, wherein said image directing assembly, said single optical assembly, said image differentiator and said light sensor array are located in an endoscope, and wherein within said endoscope a path length of respective ones [1178 and 1180] of said first plurality of light rays equals a path length of respective ones [1182 and 1184] of said second plurality of light rays.