Ultrathin Digital Camera Inspired by Xenos Peckii Eyes
The ultrathin digital camera offers a wide field of view and high resolution in a slimmer body compared to existing imaging systems. It is expected to support various applications, such as monitoring equipment, medical imaging devices, and mobile imaging systems.
Professor Ki-Hun Jeong from the Department of Bio and Brain Engineering and his team are known for mimicking biological visual organs. The team’s past research includes an LED lens based on the abdominal segments of fireflies and biologically inspired anti-reflective structures.
Figure 1. Natural Xenos peckii eye and the biological inspiration for the ultrathin digital camera
Credit: Light: Science & Applications 2018
To address this issue, the team have developed micro-optical components, inspired from the visual system of Xenos peckii, and combined them with a CMOS (complementary metal oxide semiconductor) image sensor to achieve an ultrathin digital camera.
This new camera, measuring less than 2mm in thickness, emulates the eyes of Xenos peckii by using dozens of microprism arrays and microlens arrays. A microprism and microlens pair form a channel and the light-absorbing medium between the channels reduces optical crosstalk. Each channel captures the partial image at slightly different orientation, and the retrieved partial images are combined into a single image, thereby ensuring a wide field of view and high resolution.
Figure 2. Optical images captured by the bioinspired ultrathin digital camera
Credit: Light: Science & Applications 2018
This research, led by PhD candidates Dongmin Keum and Kyung-Won Jang, was published in Light: Science & Applications on October 24, 2018.
Contacts and sources:
KAIST (Korea Advanced Institute of Science and Technology)
Source: http://www.ineffableisland.com/2019/01/ultrathin-digital-camera-inspired-by.html
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