title: Multiocular image sensor with on-chip beam-splitter and inner meta-micro-lens for single-main-lens stereo camera.
abstract: We developed multiocular 1/3-inch 2.75-μm-pixel-size 2.1M- pixel image sensors by co-design of both on-chip beam-splitter and 100-nm-width 800-nm-depth patterned inner meta-micro-lens for single-main-lens stereo camera systems. A camera with the multiocular image sensor can capture horizontally one-dimensional light filed by both the on-chip beam-splitter horizontally dividing ray according to incident angle, and the inner meta-micro-lens collecting the divided ray into pixel with small optical loss. Cross-talks between adjacent light field images of a fabricated binocular image sensor and of a quad-ocular image sensor are as low as 6% and 7% respectively. With the selection of two images from one-dimensional light filed images, a selective baseline for stereo vision is realized to view close objects with single-main-lens. In addition, by adding multiple light field images with different ratios, baseline distance can be tuned within an aperture of a main lens. We suggest the electrically selective or tunable baseline stereo vision to reduce 3D fatigue of viewers.
authors: Shinzo
authors: S
authors: Koyama
authors: Kazutoshi
authors: K
authors: Onozawa
authors: Keisuke
authors: K
authors: Tanaka
authors: Shigeru
authors: S
authors: Saito
authors: Sahim Mohamed
authors: SM
authors: Kourkouss
authors: Yoshihisa
authors: Y
authors: Kato