A device for demonstrate a digital-camera or scanner operation.

The device emulates the operation of the CCD / CMOS light sensor. The device is build with an array of 8x8 or 64x1 phototransistors, ADC and microcontroller.

The student can set the exposure (cupture) time of the sensor and calibrate its gain and offset matrix. 

The student can capture an individual row or the entire array of sensors with a press of a button.

The captured result and calibration matrixs are logged and displayed as a gray scales image.

The device is able to periodically sample the light-sensor array up to 2 samples per second and transmit the sampled value to the PC through standard COM-port (USB or RS232).

The light sensor array includes the following:

8x8 = 64 Light-Dependent-Transistors (Phototransistors) elements.
Configurable exposure time of 5ms to 150ms.
10bit Analog to digital converter.
Micro-controller (MCU) and USB connector.

1.         Initiate an automatic flat-field calibration algorithm.

2.         Configure the brightness and contrast values.

3.         Select a log file.

4.         Initiate a sampling command of the entire array or specific row in the sensor-array.

After each sample, the image display on the PC side will be updated and the corresponding result matrix will be saved in Comma-Separated-Value (.CSV) format to user specified file on the HDD.

The student can easily access the file from any program like (Excel, Matab, Mathcad, C-library, Python…) for farther analysis.