Title :
A CMOS photosensor array for 3D imaging using pulsed laser
Author :
Jeremias, R. ; Brockherde, W. ; Doemens, G. ; Hosticka, B. ; Listl, L. ; Mengel, P.
Author_Institution :
Fraunhofer Inst. of Microelectron. Circuits & Syst., Duisburg, Germany
Abstract :
A 32×2 pixel optical time of flight range sensor in standard 0.5 μm CMOS acquires up to 20k BD-images/s combines CDS, S&H, multiple double short time integration, a high-speed synchronous shutter, and a phase synchronizer enabling exposures <30 ns with <5.2 W/m/sup 2/ NEP. This CMOS imager chip for 3D imaging applications contains a photodiode array and the aforementioned features enable optical TOF measurements of laser pulses reflected from a target. The 42 mm/sup 2/ chip dissipates 330 mW.
Keywords :
CMOS image sensors; arrays; photodiodes; 0.5 micron; 330 mW; 3D imaging; CMOS imager chip; CMOS photosensor array; analog SC readout; high-speed synchronous shutter; laser pulse measurement; linear photodiode arrays; multiple double short time integration; optical TOF measurements; optical TOF range sensor; optical time of flight range sensor; phase synchronizer; pulsed laser; CMOS image sensors; High speed optical techniques; Integrated optics; Optical arrays; Optical imaging; Optical pulses; Optical sensors; Photodiodes; Pulse measurements; Semiconductor device measurement;
Conference_Titel :
Solid-State Circuits Conference, 2001. Digest of Technical Papers. ISSCC. 2001 IEEE International
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-6608-5
DOI :
10.1109/ISSCC.2001.912627
