US 5,044,708 A · Wide visual field hologram

Abstract

Process for producing a hologram reproducing the image of at least one object. Said process is characterized in that a first recording is made of the image of said object on at least one first holographic recording material in order to obtain a holographic image of said object, followed by developing this first holographic recording material, making a second recording from said holographic image on a second holographic recording material shaped to present at least one concave part turned towards the first holographic recording material, whereby at least one part of said image must be located in the space defined by the two holographic recording materials. The first and second holographic recording materials are combined in such a way that the distance separating them during the second recording is variable. Said second holographic recording material is developed and then used in the same configuration in order to play back the image of the object.

Claims10

Dependent claims

A process for making a hologram restoring an image of at least one object, characterized in that a first recording of the image of said object is made on at least one first holographic recording material with a view to obtaining a holographic image of said object;

then a development of this first holographic recording material is made;
then a second recording is made from said holographic image on a second holographic recording material arranged to have at least one concave portion oriented toward the first holographic recording material, at least a portion of this image having to be located between the space defined by the two holographic recording materials;
that the first and the second holographic recording material are associated in such a manner that the distance separating them at the time of the second recording is variable;
then a development of this second holographic recording material is performed;
then the second holographic recording material is used in accordance with the same configuration to reconstruct the image of the object.

2 more elements

Dependencies are inferred from the claim text.

Wide visual field hologram

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Wide visual field hologram

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Abstract

Claims10