DEVICE FOR TRANSMISSION OF LASER PULSES TO OPTICAL DETONATORS Russian patent published in 1997 - IPC

FIELD: national-economic use of blast energy, applicable in mining art, civil engineering, geophysics, blast metal working, etc. SUBSTANCE: the device uses blasting components with detonators 25 connected via light conduits to the source of laser radiation made as pulsed solid-state laser 7 with active component 4. The device is furnished with adjusting gas laser 1, optical tube 8 and switching device 9 consisting of right-angle prism 10 with mechanism 11 for its rotation at a preset speed, monitoring (13) and control (12) units of rotational speed of the prism and optical lenses 18,19. The adjusting gas laser is optically connected to the right-angle prism through the active component of the solid-state laser, and the inlet ends of light conduits 20 from the optical detonators of the blasting components are positioned in the focus of the optical lenses. Such a design of the device allows to transmit pulses from the solid-state laser to definite sets of optical detonators in preset time intervals. The air gap between the right-angle prism and optical lenses essentially reduces the length of the light conduits. EFFECT: enhanced efficiency. 1 dwg