초록 ▼

An imaging device has a control block for offsetting signal levels and controlling the amplification factor for the signal levels within one frame. The imaging device can image a subject having low-illuminance and high-illuminance areas without reduction in the sensitivity, and allows a wide dynamic

An imaging device has a control block for offsetting signal levels and controlling the amplification factor for the signal levels within one frame. The imaging device can image a subject having low-illuminance and high-illuminance areas without reduction in the sensitivity, and allows a wide dynamic range and high sensitivity to be achieved real-time. The imaging device thus can image subjects of different illuminance levels ranging from a low-illuminance subject to a high-illuminance subject, and can differentiate small illuminance distributions.

대표청구항 ▼

[ What is claimed is:] [1.] An imaging device comprising:detecting means for detecting a radiation radiated from a subject, converting the detected radiation into an electric signal, and outputting the electric signal;first amplifying means for amplifying the electric signal from said detecting mean

[ What is claimed is:] [1.] An imaging device comprising:detecting means for detecting a radiation radiated from a subject, converting the detected radiation into an electric signal, and outputting the electric signal;first amplifying means for amplifying the electric signal from said detecting means with a predetermined amplification factor and outputting the amplified electric signal;second amplifying means for amplifying the electric signal from said first amplifying means with a variable amplification factor and outputting the amplified electric signal;display means for displaying an image of said subject based on the electric signal outputted from said second amplifying means; andcontrol means for controlling the variable amplification factor of said second amplifying means based on the electric signal outputted from said first amplifying means.