G - Physics – 09 – F
Patent
G - Physics
09
F
G09F 13/00 (2006.01) F21V 8/00 (2006.01) G02B 6/036 (2006.01) G02B 6/04 (2006.01) G09F 9/305 (2006.01) G09F 13/20 (2006.01) G02B 6/00 (2006.01) G02B 6/28 (2006.01) G02B 6/42 (2006.01) G09F 13/18 (2006.01)
Patent
CA 2170887
This unit comprises an optical waveguide (18), which transmits a laser beam, at least one element (30, 34, 46, 48) for converting the laser beam into visible and incoherent light facing the optical waveguide and at least one security or safety element (40, 50) positioned facing said conversion elem- ent, which is transparent to the visible and incoherent light and able to stop the residual laser beam liable to emerge from the conversion element, so that the visible and incoherent light can be observed through the safety element. Application to electric signs and markings.
Ce dispositif comprend un guide d'onde optique (18) qui transmet un faisceau laser, au moins un élément (30, 34, 46, 48) de conversion du faisceau laser en lumière visible et incohérente en regard du guide d'onde optique, et au moins un élément de sécurité (40, 50) placé en regard de cet élément de conversion, transparent à la lumière visible et incohérente et apte à arrêter le faisceau laser résiduel susceptible d'émerger de l'élément de conversion, la lumière visible et incohérente étant ainsi observable à travers l'élément de sécurité. Application aux enseignes et marquages lumineux.
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