Title :
3D realtime imaging system with PSD array combined with charge amplifier array
Author :
Mizuno, Seiichiro ; Funakoshi, Haruhiro ; Yamamoto, Kouei
Author_Institution :
Solid State Div., Hamamatsu Photonics KK, Japan
Abstract :
A new combination of PSD (Position Sensitive Device) array sensor and newly developed analog CMOS IC to capture an object´s 3 dimensional shape is proposed. The CMOS charge sensitive amplifiers are designed to read out the PSD signal current with high speed and accuracy. The CMOS IC which consists of 256 individual charge sensitive amplifiers with a 100 um pitch. More than 60 dB of Signal-to-Noise (S/N) ratio and less than 3 mV variance of the offset voltage could be obtained. The primary purpose of this new compact combination is to provide handicapped people (blind or legally blind) with a means of recognizing objects without actually coming in contact with them
Keywords :
CMOS integrated circuits; analogue-digital conversion; digital simulation; handicapped aids; image processing equipment; image recognition; image sensors; linear integrated circuits; 3 dimensional shape; 3D realtime imaging; CMOS IC; CMOS charge sensitive amplifiers; PSD array; Position Sensitive Device; blind; charge amplifier array; charge sensitive amplifiers; handicapped people; offset voltage; signal-to-noise ratio; Analog integrated circuits; CMOS analog integrated circuits; CMOS integrated circuits; Charge coupled devices; Image sensors; Optical amplifiers; Sensor arrays; Shape; Switches; Voltage;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1994. IMTC/94. Conference Proceedings. 10th Anniversary. Advanced Technologies in I & M., 1994 IEEE
Conference_Location :
Hamamatsu
Print_ISBN :
0-7803-1880-3
DOI :
10.1109/IMTC.1994.351920
