| 摘要 |
The illumination intensity regulation device uses a voltage regulator circuit, with at least one sensor input (54,60), within a network device supplying at least one illumination lamp (14,16), a measuring device (36), e.g. a video camera, providing a signal proportional to the illumination intensity, compared with a required value for providing a control voltage signal, fed to the sensor input, with a power amplifier providing a corresponding variation in the electrical power supplied to the lamp. |
