Fig. 4: Glare reduction with the nonlinear optoelectronic neuron array.
From: Broadband nonlinear modulation of incoherent light using a transparent optoelectronic neuron array
a The optical setup for the glare reduction test. White light from an LED array is diffusely reflected by an unpolished aluminum foil diffuser (D) and transmits through a patterned gold mask as the object (Obj). The pattern is imaged by the lens L1 on the image plane that overlaps with the optoelectronic neuron layer (NL). The light then passes through L2, which works as a magnifying system to adjust the field of view and the depth of field at the cellphone camera (Cam). An attenuator (Attn) adjusts the captured light intensity. The laser (blue ray) is reflected by the gold mask to create a bright glare. b Left: the raw image taken by the cellphone without glare at Vdd = 0 V. The average intensity (solid lines) and the noise levels (error bars) in the white boxes are plotted in the five figures on the right. c Results with laser-induced glare with a total glare power of 100 μW, measured by placing a power meter in front of L1. The camera settings are identical to b, Vdd = 0 V. d results with glare, Vdd = 6 V. e Results with glare. The auto-exposure of the cellphone camera is turned on. Vdd = 0 V. f Results with glare. The auto-exposure is turned on. Vdd = 6 V.
