| 摘要 |
A detector 200, e.g. a pixel within an array, comprising: a photodiode element 210PD operable to generate charge carriers, the detector being configured to generate a signal indicative of a cumulative amount of charge carriers generated by the photodiode element during the integration period; a reset switch element 221 configured to couple the photodiode element to a reset potential; at least one charge storage reservoir, i.e. capacitor 225C; and at least one gain control switch element 225 configured to couple at least one said at least one charge storage reservoir to the photodiode element, wherein the detector is configured to perform a reset operation in which the reset switch element and at least one said at least one gain control switch element are closed, and the detector being configured to open at least one gain control switch element following a reset operation. The additional storage and gain switching functionality allows for an increased dynamic range. |
