Metallic-deposition-type thermal hologram sheet and its fabrication method
OwnerMitsuo Yokozawainventor
Life of this patent
Estimating the term…
Abstract
A metallic-deposition-type thermal hologram sheet having laser evaporated portions is provided. The hologram sheet includes a base sheet, a release layer, a hologram forming layer, and a metallic deposition layer. A portion of the metallic deposition layer is removed in a slit-like or mesh-like pattern by laser machining in order to form a pseudo-transparent or pseudo-semitransparent hologram sheet in the area that contains the removed portions.
Claims18
A metallic-deposition-type thermal hologram sheet comprising:
- a base sheet;
- a release layer joined to said base sheet;
- a hologram forming layer joined to said release layer;
- and
- a metallic deposition layer joined to said hologram forming layer;
- wherein a portion of said metallic deposition layer, or a portion of said metallic deposition layer and a portion of a pre-formed heat-sensitive adhesive layer is removed in slit-like or mesh-like pattern by laser machining to form a pseudo-transparent or pseudo-semitransparent hologram sheet in the area that contains said removed portions.
A method of fabricating a metallic-deposition-type thermal hologram sheet wherein a laser is partially illuminated to a metallic-deposition-type thermal hologram sheet that comprises a base sheet, a release layer, a hologram forming layer, and a metallic deposition layer, and said laser-illuminated portion of said metallic-deposition-type thermal hologram sheet is evaporated in a slit- or mesh-like pattern, but said hologram forming layer is kept intact in order to form a pseudo-transparent or pseudo-semitransparent hologram sheet in the area that contains said portion removed via evaporation.
A metallic-deposition-type thermal hologram sheet comprising:
- a base sheet;
- a hologram forming layer disposed below the base sheet;
- and
- a metallic deposition layer disposed below the hologram forming layer, the metallic deposition layer including a plurality of laser removed portions in a predefined pattern, the removed portions forming a partially transparent hologram sheet.
A method of fabricating a metallic-deposition-type thermal hologram sheet in a partially formed sheet including a base sheet and a hologram forming layer disposed below the base sheet, the method comprising:
- forming a metallic deposition layer below the hologram forming layer;
- and
- illuminating by laser a plurality of removal portions of the metallic deposition layer in a slit-like or mesh-like pattern to evaporate the removal portions in order to form a partially transparent hologram sheet in the areas that contain the removal portions.
Dependencies are inferred from the claim text.