Title :
A small pixel CMD image sensor
Author :
Ogata, Masanori ; Nakamura, Tsutomu ; Matsumoto, Kazuya ; Ohta, Ryo ; Hyuga, Ryouji
Author_Institution :
Olympus Opt. Co. Ltd., Nagano, Japan
fDate :
5/1/1991 12:00:00 AM
Abstract :
A charge modulation device (CMD) imager with pixel dimensions of 7.3 μm(H)×7.6 μm(V) was designed, fabricated, and examined. These pixel dimensions are suitable for an HDTV imager with a 1-in image format. The optical aperture ratio is 34%. The effective number of pixels in the imager is 660 horizontal and 492 vertical. The saturation signal current is 17 μA/pixel at an exposure of 1 lx-s with good linearity of photoconversion characteristics. The peak of its spectral response occurs at a wavelength of 575 nm. The blooming suppression ratio of the CMD was measured to be -122 dB. The sensor produces a high-quality image with no degradation in spatial resolution and no image lag. These features show that the CMD imager is eminently suitable for a further high-resolution imager sensor
Keywords :
high definition television; image sensors; 1 in; 1-in image format; 324720 pixel; 492 pixel; 575 nm; 660 pixel; 7.3 micron; CMD image sensor; HDTV imager; blooming suppression; charge modulation device imager; features; high-resolution imager sensor; number of pixels; photoconversion characteristics; spatial resolution; spectral response; Apertures; HDTV; Image sensors; Linearity; Optical modulation; Optical saturation; Optical sensors; Pixel; Sensor phenomena and characterization; Wavelength measurement;
Journal_Title :
Electron Devices, IEEE Transactions on
