| 摘要 |
<p>A circut is designed to compensate for the non-linearity of the relation between applied voltage and light radiation intensity from a LED. It is for application in the generation of amplitude modulated light signals. The LED (LD) is included in the output circuit of an operational amplifier (V) having one input receiving the input voltage (E) to be converted to a modulated light beam, and the other input connected to the working resistance (R) of a photoelectric converter (FT) with linear characteristics, controlled by the modulated light. The control beam may be derived by means of a beam splitter (S or LL) in the beam from the LED.</p> |
