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Home > All Images > 1999 > October > 27 Oct 1999

Images Dated 27th October 1999

Choose from 15 pictures in our Images Dated 27th October 1999 collection for your Wall Art or Photo Gift. All professionally made for Quick Shipping.

Confocal microscope image of optical computer tape Featured 27 Oct 1999 Print

Confocal microscope image of optical computer tape

Optical storage tape surface. Confocal microscopy as a surface plot of a roll of plastic adhesive tape on which optical data has been written. Each hump is one bit of information. The information is written and read by a semiconductor laser. Focusing the laser onto specific points on the tape alters the refractive index (RI) of the tape at these points. Information such as images, sound and computer data can be stored on the tape. The laser has such a sharp focus that the tape does not have to be unwound. Photographed at Leica Microsystems, Heidelberg, Germany. Magnification: x3000 at 6x7cm size