For providing a compact, light, and cheap image pickup apparatus capable of attaining both a stereoscopic image and a high-definition plane image by itself, a changeover optical unit is provided with both a function to attain a stereoscopic image by guiding beams captured through objective lenses to...http://www.google.com.tw/patents/US5907434?utm_source=gb-gplus-share專利 US5907434 - Image pickup apparatus
