... -dimensional sense, Distinct gradations, Wide view, GY-2200B Colposcope Digital Imaging System(1) Optical system is five gears ,zoom ,and ... light splitting grating design and the sole CCD imaging vernier device ,making the screen form the three-dimensional ... imaging, and all the different levels diseased region tissue can gain the best observation effect. GY-2200B Colposcope Digital Imaging System ...