An improved antiglare optical device

Details An improved antiglare optical device An improved antiglare optical device

C - Chemistry, Metallurgy

03

C

C03C 17/36 (2006.01) B05D 5/06 (2006.01) B05D 7/02 (2006.01) C08J 7/04 (2006.01) C23C 14/14 (2006.01) C23C 14/24 (2006.01)

Patent

CA 2377828

The present invention relates to a method of deposition of an absorbing material upon a plastic/glass substrate by vacuum coating at an angle of inclination between 5° to 30° and using a mask on the evaporation source to produce a graded film material and a method for the preparation of graded density absorbing film useful as an antiglare optical device for protecting the eyes by reducing the glare by absorbing the light intensity falling upon it in a non-uniform fashion.

L'invention concerne un procédé de dépôt d'une substance absorbante sur un substrat en plastique/verre par enduction sous vide selon un angle d'inclinaison compris entre 50 et 30o et au moyen d'un masque sur la source d'évaporation, pour la production d'un matériau en film à densité progressive, et par enduction des deux côtés du substrat d'une ou plusieurs couches antireflets. L'invention porte également sur un procédé de préparation d'un film absorbant à densité progressive et de couche(s) antireflet(s) utile(s) en tant que dispositif optique antireflet pour la protection des yeux par la réduction du reflet par absorption de l'intensité lumineuse tombant sur celui-ci de manière non homogène.

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