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Process for producing, by etching through a lenticular grating, images that may be selectively viewed by varying angle of observation
Process for producing, by etching through a lenticular grating, images that may be selectively viewed by varying angle of observation
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机译：通过蚀刻通过透镜状光栅，通过不同观察角度选择性地观察的图像来制造方法
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摘要
A process for producing, under a lenticular grating, in an etching zone, by laser etching, using a tool, a first image and at least one second image that may be selectively viewed by varying angle of observation, the tool including a laser, a galvanometric head and a lens, and defining an optical axis and a working zone, which includes steps of: placing the etching zone in a first location included in the working zone and on the periphery of the working zone, and, perpendicularly to the optical axis, etching the first image; and then placing the etching zone in a second location, which is different from the first location, included in the working zone and on the periphery of the working zone, and, perpendicularly to the optical axis, etching the second image.
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