| 摘要 |
1,191,737. Spark gaps; lasers. COMPAGNIE GENERAL D'ELECTRICITE. 4 Aug., 1967 [8 Aug., 19661, No. 35886/67. Headings H1C, H1D and H1X. [Also in Division G3] A spark gap 16 is repeatedly triggered by the beam 12 of a continuously operating gas laser 11 passing through at least one aperture 15 in a rotating opaque disc 14. The disc 14 is rotated by an electric motor 13. The apertures 15 may be circular holes or arcuate slots and may contain or be associated with lenses. A plurality of spark gaps of the same size arranged along the beam path may be triggered practically simultaneously or spark gaps of different sizes may be triggered selectively by using apertures of different sizes or lenses of different focal lengths. Apertures of variable size may be provided by two discs relatively movable through a limited angle. (Figs. 5a and 5b, not shown); such movement may be servocontrolled. The speed of the motor 13 may be servo-controlled (see Division G3) at the highest possible triggering rate. The spark gap may have a gas filling of mercury vapour, hydrogen, air, nitrogen, sulphur-hexafluoride, argon or helium, thus enabling different deionization times to be obtained. |
