Holograms
AssigneePulsetech Security Limited
InventorsCharles Franklin Gale, Martin John Richardson
Life of this patent
Estimating the term…
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.
Claims28
A volume hologram including a holographic medium,
- the holographic medium including a first optical interference structure which upon illumination replays a first image;
- and
- the first image including 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.
(canceled)
5-7. (canceled)
12-21. (canceled)
A volume hologram including a holographic medium,
- the holographic medium including:
- a first optical interference structure which replays a first image including first data upon illumination with a first wavelength of light;
- and
- a second optical interference structure which replays a second image including second data upon illumination with a second wavelength of light.
(canceled)
(canceled)
30-32. (canceled)
A volume hologram including a holographic medium, the holographic medium including:
- a first optical interference structure which upon illumination at a first angle replays a first image including first data;
- and
- a second optical interference structure which upon illumination at a second angle replays a second image including second data.
(canceled)
(canceled)
41-61. (canceled)
Dependencies are inferred from the claim text.