Method for applying colored information on an object

Details Method for applying colored information on an object Method for applying colored information on an object

2007-01-02

2007-01-02

Tung, Kee M. (Department: 2628)

Computer graphics processing and selective visual display system

Computer graphics processing

Attributes

C345S581000, C345S593000, C345S597000

Reexamination Certificate

active

10130540

ABSTRACT:
A description is given of a method for applying colored information to an object (4), the object having at least two different chromophoric particles, at least in a layer (4A) close to the surface, which change the color of this layer (4A) under the influence of laser radiation,laser radiation (1, 2, 3) having at least two different wavelengths (λ1, μ2, λ3) being used in order to change the color of this layer (4A),the object (4) being acted on by laser radiation in the vector and/or raster method by means of a two-coordinate beam deflection device (6) and a focusing device (7) for focusing the laser radiation onto the layer (4A) of the object (4).According to the invention, at least one beam guiding means (8) is provided in order to guide a first laser beam (1) having the wavelength (λ1) and at least one further laser beam (2) having a wavelength (λ2), which is different from the wavelength of the first laser beam, via the two-coordinate beam deflection device (6) and the focusing device (7) onto the layer (4A) of the object (4).

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