LASER FULMINATING DETONATOR Russian patent published in 2021 - IPC F42B3/113 

FIELD: explosives.

SUBSTANCE: invention relates to means for blasting, namely to laser means of initiation for use in the mining and coal mining industries, in seismic exploration, oil production during wellbore perforation, construction and special equipment for blasting single and spaced charges at multipoint initiation. A laser fulminating detonator - LFD containing a body with an explosive charge, an optical support, a photosensitive explosive with addition of a nanocarbon component, wherein the explosive is initiated from a laser diode with a focusing system. The radiation source and the focusing system are removed from the body of the detonator and connected thereto by means of a fiber-optic cable through an optical input constituting a polymer socket fixed in the equipped sleeve of the fulminating detonator - FD. A light guide is fixed in the center of the socket, adjacent to the optical support made of fluoroplastic inserted into a cap wherein a photosensitive explosive, a modified nanomodifier - astralen, an initiating charge and a disruptive explosive are pressed into the cap.

EFFECT: invention allows improving manufacturability and safety of blasting operations which is provided by the high level of resistance to electromagnetic influence and discharges of static electricity, reducing the activation power, increasing operational speed and reducing difference in timing of activation at multipoint charge initiation.

8 cl, 3 dwg