Solid state imager with a condenser lens on a photo sensor
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United States of America Patent
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Oct 5, 1993
Grant Date -
N/A
app pub date -
Jan 27, 1992
filing date -
Jan 28, 1991
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention is directed to a CCD solid state imager in which a utilization efficiency of light and a sensitivity of a sensitive unit (pixel) can be increased and a smear can be reduced by improving a shape of a micro-condenser lens formed on the sensitive unit. In the CCD solid state imager of this invention, of four corner portions of the condenser lens, shapes of the three corner portions are round-cornered similarly to corner portions of a sensitive unit opening and the remaining corner portion of the condenser lens is cut along the direction inclined relative to a central line of the condenser lens (i.e., in the direction having an inclined angle of substantially 45 degrees).
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