SPAD Based Digital Photon Counting Optical Distance Sensor in 150 nm CMOS Using Indirect Multiphase Time-of-Flight

Author(s):  
A. Kuttner ◽  
M. Hauser ◽  
A. Dervic ◽  
H. Zimmermann ◽  
M. Hofbauer
2021 ◽  
Vol 7 (8) ◽  
pp. 138
Author(s):  
Marina Carbone ◽  
Davide Domeneghetti ◽  
Fabrizio Cutolo ◽  
Renzo D’Amato ◽  
Emanuele Cigna ◽  
...  

Wearable Video See-Through (VST) devices for Augmented Reality (AR) and for obtaining a Magnified View are taking hold in the medical and surgical fields. However, these devices are not yet usable in daily clinical practice, due to focusing problems and a limited depth of field. This study investigates the use of liquid-lens optics to create an autofocus system for wearable VST visors. The autofocus system is based on a Time of Flight (TOF) distance sensor and an active autofocus control system. The integrated autofocus system in the wearable VST viewers showed good potential in terms of providing rapid focus at various distances and a magnified view.


1976 ◽  
Vol 48 (6) ◽  
pp. 846-856 ◽  
Author(s):  
R. J. Kelly ◽  
W. B. Dandliker ◽  
Donald E. Williamson

2014 ◽  
Vol 3 (1) ◽  
pp. 1 ◽  
Author(s):  
Venkataraman Krishnaswami ◽  
Cornelis J F Van Noorden ◽  
Erik M M Manders ◽  
Ron A Hoebe

Author(s):  
Akihide SHIRATSUKI ◽  
Daisuke SAKAI ◽  
Taisuke CHIMURA ◽  
Hiroyuki KAWANO ◽  
Masahiro SHIKAI ◽  
...  

2018 ◽  
Vol 21 (3) ◽  
pp. 447-453 ◽  
Author(s):  
Jun Zhang ◽  
Michelle I. Knopp ◽  
Michael V. Knopp

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