Apparatus and method for enhancing printing efficiency to...

Details Apparatus and method for enhancing printing efficiency to... Apparatus and method for enhancing printing efficiency to...

H - Electricity

04

N

H04N 1/23 (2006.01) B41J 2/44 (2006.01) H04N 1/04 (2006.01) H04N 1/06 (2006.01)

Patent

CA 2193108

Apparatus and methods for exposing multilayered thermal imaging media to eliminate "cloud" or "woodgrain" artifacts by proper optimization of the exposing radiation angle of incidence. The exposure angle of incidence is large enough so that all rays with high reflectance loss are paired with equally many with low reflectance loss to increase printing efficiency.

L'invention concerne un appareil et des procédés d'exposition d'un support de thermographie à couches multiples permettant d'éliminer les défauts du type aspect granuleux ou voile. Pour cela, on optimise de manière appropriée l'angle d'incidence du rayonnement d'exposition. L'angle d'incidence d'exposition est suffisamment élevé pour que tous les rayons à perte de réflectance élevée soient couplés à autant de rayons à faible perte de réflectance, ce qui augmente l'efficacité de l'impression.

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