- #1
nbo10
- 418
- 5
Hi all,
I have a question about the response of a cmos imaging sensor. The total exposure is defined as the irradiance * pixel area * exposure time and it can be varied by changing either the irradiance or the exposure time. Would the sensor response remain constant if measurements are taken with variable irradiances and exposure times under the condition that the total exposure is constant?
My naive thinking would assume that the sensor would measure the same value at constant total exposure independent of the irradiance and exposure time values. Or are there other details, particular the circuit used convert charge to a digital number, that effect the sensor value? Thanks
I have a question about the response of a cmos imaging sensor. The total exposure is defined as the irradiance * pixel area * exposure time and it can be varied by changing either the irradiance or the exposure time. Would the sensor response remain constant if measurements are taken with variable irradiances and exposure times under the condition that the total exposure is constant?
My naive thinking would assume that the sensor would measure the same value at constant total exposure independent of the irradiance and exposure time values. Or are there other details, particular the circuit used convert charge to a digital number, that effect the sensor value? Thanks