Test tube bulb of mask lily ROCCO was used to investigate the influence of low temperature, plant hormone, sugar and illumination intensity on the proliferation of the bulb.

As the intensity of light varies - by the breaking of a light beam, say, or a decrease in general illumination - the amount of current generated by the sensor changes.

A new LED line light source is adopted to obtain a high intensity and uniform illumination, and field of view is partitioned by means of multiple linear CCD sensors parallel imaging.