Patent ID: 8530813

Claim:
An image detecting device comprising: a substrate including a plurality of accumulation portions that accumulate charges generated by irradiated electromagnetic waves representing an image which is an object of detection, a plurality of data lines respectively separately connected to the plurality of accumulation portions, a first protection line that protects circuitry from excessive voltage, and a plurality of first protection circuits, respectively separately connected to the plurality of data lines and the first protection line, that allow the current to flow if a potential difference between the data lines and the first protection line is equal to or greater than a predetermined first allowable level; and a detecting circuit, connected to the plurality of data lines, that reads the charges respectively accumulated in the plurality of accumulation portions, and that detects charge amounts to serve as information of pixels configuring the image, including a second protection line that protects circuitry from excessive voltage, and a plurality of second protection circuits, respectively separately connected to the plurality of data lines and the second protection line, that allow the current to flow if a potential difference between the data lines and the second protection line is equal to or greater than a predetermined second allowable level, wherein the plurality of first protection circuits are configured such that the first allowable level is higher than the second allowable level of the second protection circuits.