| 摘要 |
<p>The optical radiation source has a radiation (7) of wavelength between 260 and 800 nanometres. The radiation is modulated in a frequency range between 200 kHz and 20 MHz and having a set accuracy. The stability of frequency is better than 1per cent. The radiation is modulated in a frequency range between 300 kHz and 10 MHz. The radiation source has a continuous adjustable modulator between 200 kHz and 20 MHz.</p> |
