Complex holograms, method of making and using complex holograms
AssigneeSabic Innovative Plastics IP B.V.
InventorsMichael Teruki Takemori, Amitabh Bansal, Andrew A. Burns, Mark Cheverton, Sumeet Jain
Life of this patent
Estimating the term…
Abstract
A method of making a hologram includes recording a first hologram in a holographic recording medium at a first deformation ratio; changing the first deformation ratio to a second deformation ratio that is different from the first deformation ratio; and recording a second hologram in the holographic recording medium at the second deformation ratio to form a recorded holographic medium.
Claims20
A method of forming image reflection holograms in a holographic recording medium comprising a photochemically active dye dispersed in a deformable optically transparent polymer binder and not chemically attached to the polymer, the holographic recording medium having a medium deformation ratio at a resting state, comprising:
- exposing the holographic recording medium to interfering coherent light beams to record a first reflection hologram representing an image of a first color comprising interference fringes having a first interference fringe spacing at a first alignment formed from exposed and unexposed photochemically active dye in the holographic recording medium at a first deformation ratio;
- changing the first interference fringe spacing or alignment to an interference fringe spacing or alignment different from the first interference fringe spacing by changing the deformation ratio to a deformation ratio different than the first deformation ratio, without changing the chemical composition of the holographic recording medium, or adding a material to cause swelling;
- and
- recording a second reflection hologram representing an image of a second color in the holographic recording medium at a second deformation ratio.
A method of making a hologram in a holographic recording medium, which allows visualization of said hologram without additional processing, comprising a photochemically active dye dispersed in a deformable optically transparent polymer binder and not chemically attached to the polymer, comprising:
- simultaneously recording a image hologram in the holographic recording medium at multiple deformation ratios such that the hologram has interference fringes comprising multiple fringe spacings and/or multiple fringe angles.
A method of forming image reflection holograms in a holographic recording medium, comprising:
- exposing the holographic recording medium to interfering coherent light beams to record a first reflection hologram representing an image of a first color in the holographic recording medium at a first deformation ratio, wherein the holographic recording medium comprises a photochemically active dye dispersed in a deformable optically transparent polymer binder and not chemically attached to the polymer;
- mechanically changing the deformation ratio of the holographic recording medium to a second deformation ratio without addition of a material to cause swelling that is different from the first deformation ratio;
- and
- recording a second reflection hologram representing an image of a second color in the holographic recording medium at the second deformation ratio to form a recorded holographic medium.
Dependencies are inferred from the claim text.