Back to results
US 2003/0142379 A1Published application
Hologram producing method
OwnerTamiki Takemori, Kenji Koninventors
Life of this patent
Estimating the term…
Abstract
The distance between a spatial light modulating device 7 and a lens 8 is set such that a real or virtual image position 9, 9′ (L, L′) of object light formed by the lens 8 is an observing position of a hologram 12′. Since a reconstructed image is fixed at the observing position L, L′, noise existing in the reconstructed image of the spatial light modulating device 7′ if any is fixed at the observing position and thus is unremarkable as noise, whereby the noise is substantially lowered.
Claims8
A hologram making method comprising the steps of:
- displaying images actually or virtually observed from a plurality of viewpoints one by one in time series or simultaneously on a display surface;
- and
- using the images displayed on said display surface as object light, and converging said object light with a lens to irradiate a recording surface through an aperture provided at a position corresponding to said view points while irradiating said recording surface with reference light, so as to record interference light between said object light and said reference light onto said recording surface and make a hologram,
- wherein the distance between said display surface and said lens is set such that a real or virtual image position of said object light formed by said lens is an observing position of said hologram.
1 more element
Dependencies are inferred from the claim text.