Laser protection arrangement with safety cutoff
AssigneeJENOPTIK Automatisierungstechnik GmbH
InventorsBernd Wilhelmi, Ulf Feistel
Life of this patent
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Abstract
Laser protection arrangement with a safety cutoff comprising a passive laser protection wall which stores the radiation energy of impinging radiation of a laser of a laser material processing installation, a laser protection foil which causes a detectable change when struck by laser radiation and which is arranged in front in direction of the laser radiation, and at least one sensor which is connected to the laser by a threshold switch in order to switch off the laser when the received detector signal exceeds or falls below a threshold value.
Claims10
A laser protection arrangement with a safety cutoff, comprising:
- a passive laser protection wall which stores the radiation energy of impinging radiation of a laser of a laser material processing installation;
- a laser protection foil which comprises an expandable plastic and is fixed in an expanded state and undergoes a detectable change when struck by laser radiation being arranged in front of the passive laser protection wall in the direction of the laser radiation;
- and
- at least one sensor being connected to the laser by a threshold switch in order to switch off the laser when a detector signal received by the at least one sensor exceeds or falls below a predetermined threshold value.
A laser protection arrangement with a safety cutoff, comprising:
- a passive laser protection wall which stores the radiation energy of impinging radiation of a laser of a laser material processing installation;
- a laser protection foil with integrated optically conducting fibers comprising a fiber core and a fiber cladding, the laser protection foil undergoing a detectable change when struck by laser radiation being arranged in front of the passive laser protection wall in the direction of the laser radiation;
- and
- at least one sensor being connected to the laser by a threshold switch in order to switch off the laser when a detector signal received by the at least one sensor exceeds or falls below a predetermined threshold value.
A laser protection arrangement with a safety cutoff, comprising:
- a passive laser protection wall which stores the radiation energy of impinging radiation of a laser of a laser material processing installation;
- a laser protection foil which is a double foil that is formed by at least one gas-filled hollow chamber, the laser protection foil undergoing a detectable change when struck by laser radiation being arranged in front of the passive laser protection wall in the direction of the laser radiation, the laser protection foil being configured to be exchangeable with another laser protection foil without having to exchange the passive laser protection wall with another passive laser protection wall;
- and
- at least one sensor being connected to the laser by a threshold switch in order to switch off the laser when a detector signal received by the at least one sensor exceeds or falls below a predetermined threshold value.
A laser protection arrangement with a safety cutoff, comprising:
- a passive laser protection wall which stores the radiation energy of impinging radiation of a laser of a laser material processing installation;
- a laser protection foil which is a bubble foil, the laser protection foil undergoing a detectable change when struck by laser radiation being arranged in front of the passive laser protection wall in the direction of the laser radiation;
- and
- at least one sensor being connected to the laser by a threshold switch in order to switch off the laser when a detector signal received by the at least one sensor exceeds or falls below a predetermined threshold value.
Dependencies are inferred from the claim text.