Holographic recordings replaying images upon illumination
AssigneeH010 Limited
InventorsCharles Franklin Gale, Martin John Richardson
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Abstract
There are provided volume holograms and combinations of lenticular lenses and holograms in particular for security applications. In embodiments, a volume hologram comprises a holographic medium (102) including a first optical interference structure which, upon illumination, replays a first image (110); wherein the first image includes a lenticular lens layer (111) including an array of lenticules and a lenticular image layer (113) including first (114) and second (115) interlaced images corresponding with the array of lenticules.
Claims6
A volume reflection hologram including a holographic medium, the holographic medium including:
- a first optical interference structure which upon a first illumination at a first angle replays by reflection a first holographic recording of a first image including first data;
- and
- a second optical interference structure which upon a second illumination at a second angle different than the first angle replays by reflection a second holographic recording of a second image including second data.
A volume hologram including a holographic medium, the holographic medium including:
- a first optical interference structure which upon a first illumination at a first angle replays a first holographic recording of a first image including first data;
- and
- a second optical interference structure which upon a second illumination at a second angle different than the first angle replays a second holographic recording of a second image including second data;
- wherein the first and/or second image includes a lenticular lens layer including an array of lenticules and a lenticular image layer including first and second interlaced images corresponding with the array of lenticules.
Dependencies are inferred from the claim text.