| Paper Abstract and Keywords |
| Presentation |
2023-09-15 16:00
A 3.96µm, 124dB Dynamic Range, 6.2mW Stacked Digital Pixel Sensor with Monochrome and Near-Infrared Dual-Channel Global Shutter Capture
Ken Miyauchi, Isao Takayanagi, Masato Nagamatsu, Hirofumi Abe, Kazuya Mori, Masayuki Uno, Toshiyuki Isozaki, Rimon Ikeno (Brillnics Japan), Hsin-Li Chen, Chih-Hao Lin, Wen-Chien Fu, Shou-Gwo Wuu (Brillnics), Song Chen, Lyle Bainbridge, Qing Chao, Ramakrishna Chilukuri, Wei Gao, Andrew P. Hammond, Tsung-Hsun Tsai, Chiao Liu (Meta) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
This paper presents a 3.96μm, 640x640 pixel stacked digital pixel sensor capable of capturing co-located monochrome (Mono) and near-infrared (NIR) frames simultaneously in a dual-channel global-shutter mode. A super-pixel structure is proposed with diagonally arranged 2x2 sub-pixels. A gapless dual-size microlens array and NIR pass filters are utilized to retain high fill factors for both visible and NIR light, ~70% and ~100% respectively. Each super-pixel is connected to a pixel-parallel ADC and two banks of 10-bit SRAMs to enable the dual-channel global-shutter operation. The power consumption at 30 fps with dual-channel capture is only 6.2mW. The Mono channel achieves a high dynamic range (DR) of 124 dB and the DR of the IR channel is 60 dB. The sensor fits the stringent form-factor requirement of an Augmented Reality headset by consolidating Mono and NIR cameras. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
CMOS image sensor / Digital pixel sensor / Dual channel / Global shutter / Monochrome / Near-infrared / Dual bank SRAMs / Digital-CDS |
| Reference Info. |
ITE Tech. Rep., vol. 47, no. 27, IST2023-46, pp. 45-48, Sept. 2023. |
| Paper # |
IST2023-46 |
| Date of Issue |
2023-09-08 (IST) |
| ISSN |
Online edition: ISSN 2424-1970 |
| Download PDF |
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