To provide an organic semiconductor composition that can exhibit a high carrier transport property and give uniform characteristics. The device has a support formed with a top and bottom end and a plurality of channels extending axially through the support. Light is emitted onto the object surface region under different illumination conditions, in particular different light incidence directions, and in each illumination condition a sequence S1 to Sn of camera images B is recorded. The first and second circuit elements provide source degeneration for the first and second transistors, extend the linear operating region for these transistors, and may be implemented with either transistors that are always turned on or resistors. The optical fiber, the light receiving portion and the light source portion are arranged linearly.