Holograms

Claim 5

A hologram of an object, said hologram consisting of patterns throughout its length and breadth in the form of regions of varying transmittances structurally corresponding with those formed on a photosensitive recording medium by exposure to an intensity distribution resulting from the interference at said medium throughout its length and breadth of a reference beam of coherent light and diffused light which has interacted with said object and characterized by structure in every portion of said regions which when illuminated with a beam of coherent light produces an image of the entire object.

Claim 6

A hologram of an object, said hologram consisting of patterns throughout its length and breadth in the form of regions of varying transmittances structurally corresponding with those formed on a photosensitive recording medium by exposure to an intensity distribution resulting from the interference at said medium throughout its length and breadth of a reference beam of coherent light and diffused light which has interacted with said object and characterized by structure in every portion of said regions which when illuminated with a beam of coherent light produces an image of the entire object.

Claim 7

The hologram of claim 3 in which said object is three-dimensional diffusely reflecting and in which said interference patterns of said regions are formed in accordance with the angular disposition of said regions relative to said object whereby portions of the object obscured at one location of a region will be seen by regions at a location not so obscured.

Claim 8

The hologram of claim 3 in which said object is transparent and said diffused light is directed through said transparent object to produce an object-bearing beam which interferes at said medium with said reference beam.

Claim 9

An off-axis hologram of an object, said hologram consisting of a structure having interference patterns throughout its length and breadth in the form of regions of varying transmittances, any portion of said regions which when illuminated with a beam of coherent light producing an image of the entire object, said regions having been formed on a photosensitive recording medium throughout its length and brEadth by exposure to an intensity distribution resulting from the interference at said medium of a reference beam of coherent light and diffused light which has interacted with said object in the form of an object-bearing beam angularly displaced with respect to said reference beam.

Claim 10

An off-axis hologram of an object, said hologram consisting of a structure having interference patterns throughout its length and breadth in the form of regions of varying transmittances, any portion of said regions which when illuminated with a beam of coherent light producing an image of the entire object, said regions having been formed on a photosensitive recording medium throughout its length and brEadth by exposure to an intensity distribution resulting from the interference at said medium of a reference beam of coherent light and diffused light which has interacted with said object in the form of an object-bearing beam angularly displaced with respect to said reference beam.

Claim 11

An off-axis hologram of a three-dimensional diffusely reflecting object, said hologram consisting of a structure having interference patterns throughout its length and breadth in the form of regions of varying transmittances, any portion of said regions which when illuminated with a beam of coherent light producing an image of the entire object, said interference patterns of said regions being formed in accordance with the angular disposition of said regions relative to said object whereby portions of the object obscured at one location of a region will be seen by regions at a location not so obscured, said regions having been formed on a photosensitive recording medium throughout its length and breadth by exposure to an intensity distribution resulting from the interference at said medium of a reference beam of coherent light and diffused light which has interacted with said object in the form of an object-bearing beam angularly displaced with respect to said reference beam.

Claim 12

An off-axis hologram of a three-dimensional diffusely reflecting object, said hologram consisting of a structure having interference patterns throughout its length and breadth in the form of regions of varying transmittances, any portion of said regions which when illuminated with a beam of coherent light producing an image of the entire object, said interference patterns of said regions being formed in accordance with the angular disposition of said regions relative to said object whereby portions of the object obscured at one location of a region will be seen by regions at a location not so obscured, said regions having been formed on a photosensitive recording medium throughout its length and breadth by exposure to an intensity distribution resulting from the interference at said medium of a reference beam of coherent light and diffused light which has interacted with said object in the form of an object-bearing beam angularly displaced with respect to said reference beam.

Claim 13

A complex hologram of a plurality of objects, said complex hologram consisting of a plurality of holograms each of a different one of said objects superimposed upon a single photosensitive recording medium characterized by the fact that each of said holograms consists of a structure of interference patterns which direct an incident beam of light in a direction differing from that of the remaining holograms to simultaneously produce different non-overlapping images of each of said objects.

Claim 14

A complex hologram of a plurality of objects, said complex hologram consisting of a plurality of holograms each of a different one of said objects superimposed upon a single photosensitive recording medium characterized by the fact that each of said holograms consists of a structure of interference patterns which direct an incident beam of light in a direction differing from that of the remaining holograms to simultaneously produce different non-overlapping images of each of said objects.

Claim 15

A complex hologram of a multi-color object consisting of a plurality of off-axis holograms each made from different selected colors of coherent light superimposed on a common photosensitive recording medium, each of said holograms consisting of a structure having interference patterns in the form of regions of varying transmittances and characteristic of one of said selected colors of said coherent light, said regions having been formed on said photosensitive recording medium by exposure to an intensity distribution resulting from the interference at said medium of a reference beam of coherent light of one of said selected colors and light which has interacted with said object in the form of an object-bearing beam angularly displaced with respect to said reference beam, each of said holograms when illuminated with coherent light of the same selected colors used in making the complex hologram each hologram then producing an image of said object in the original color which formed that hologram along with other images of said object in each of said other colors, the originalcolor images from all the holograms making up said complex hologram being in registry and separated from all of the other images to reproduce said object in its original color.

Claim 16

A complex hologram of a multi-color object consisting of a plurality of off-axis holograms each made from different selected colors of coherent light superimposed on a common photosensitive recording medium, each of said holograms consisting of a structure having interference patterns in the form of regions of varying transmittances and characteristic of one of said selected colors of said coherent light, said regions having been formed on said photosensitive recording medium by exposure to an intensity distribution resulting from the interference at said medium of a reference beam of coherent light of one of said selected colors and light which has interacted with said object in the form of an object-bearing beam angularly displaced with respect to said reference beam, each of said holograms when illuminated with coherent light of the same selected colors used in making the complex hologram each hologram then producing an image of said object in the original color which formed that hologram along with other images of said object in each of said other colors, the originalcolor images from all the holograms making up said complex hologram being in registry and separated from all of the other images to reproduce said object in its original color.

Claim 17

A complex hologram consisting of a plurality of holograms each of a different object superimposed upon a single photosensitive recording medium characterized by the fact that each of said holograms consists of a structure having interference patterns formed upon said recording medium by exposure to an intensity distribution resulting from the interference at said medium of a reference beam of coherent light and light which has interacted with an object in such a manner that said holograms each have interference patterns which direct simultaneously an incident beam of coherent light in different directions to produce non-overlapping images of each of said objects.

Claim 18

A complex hologram consisting of a plurality of holograms each of a different object superimposed upon a single photosensitive recording medium characterized by the fact that each of said holograms consists of a structure having interference patterns formed upon said recording medium by exposure to an intensity distribution resulting from the interference at said medium of a reference beam of coherent light and light which has interacted with an object in such a manner that said holograms each have interference patterns which direct simultaneously an incident beam of coherent light in different directions to produce non-overlapping images of each of said objects.

Claim 19

A hologram of a diffusely reflecting three-dimensional object, said hologram having the characteristic that any portion thereof when illuminated with a beam of coherent light produces an image of the entire object, said hologram having been produced by illuminating the object with a source of coherent radiatioN to produce reflecting radiation from the object, positioning a detector sensitive to the coherent radiation to receive the reflected radiation from the object, and directing reference radiation coherent with the first-named coherent radiation onto the detector in such manner to interfere with the reflected radiation from the object, the directed reference radiation interfering with the reflected radiation to produce a pattern of interference fringes that are recorded on the detector as a hologram.

Claim 20

A hologram of a diffusely reflecting three-dimensional object, said hologram having the characteristic that any portion thereof when illuminated with a beam of coherent light produces an image of the entire object, said hologram having been produced by illuminating the object with a source of coherent radiatioN to produce reflecting radiation from the object, positioning a detector sensitive to the coherent radiation to receive the reflected radiation from the object, and directing reference radiation coherent with the first-named coherent radiation onto the detector in such manner to interfere with the reflected radiation from the object, the directed reference radiation interfering with the reflected radiation to produce a pattern of interference fringes that are recorded on the detector as a hologram.

Claim 21

A hologram of an object, said hologram having the characteristic that any portion thereof when illuminated with a beam of coherent light produces an image of the entire object, said hologram having been produced by directing a first beam of radiation through a diffusion screen onto the object from a source of coherent radiation, positioning a detector to receive the radiation from the object, and directing a second beam of radiation onto the detector from the source at a finite angle with respect to the radiation from the object, the second beam interfering with the radiation from the object to produce therewith a pattern of interference fringes that are recorded on the detector as a hologram.

Claim 22

A hologram of an object, said hologram having the characteristic that any portion thereof when illuminated with a beam of coherent light produces an image of the entire object, said hologram having been produced by directing a first beam of radiation through a diffusion screen onto the object from a source of coherent radiation, positioning a detector to receive the radiation from the object, and directing a second beam of radiation onto the detector from the source at a finite angle with respect to the radiation from the object, the second beam interfering with the radiation from the object to produce therewith a pattern of interference fringes that are recorded on the detector as a hologram.

Claim 23

A color hologram of an object having at least two dimensions produced by illuminating the object with a plurality of sources of coherent light, each source of coherent light being of a different color to produce an object-bearing beam of each color, positioning a detector sensitive to each color of the coherent light in the path of the object-bearing beam, and directing light coherent with each color of said coherent light onto the detector at finite angles with respect to the corresponding object-bearing beams to form interference patterns on the detector, the directed light of each color of coherent light being directed onto the detector at a different angle.

Claim 24

A color hologram of an object having at least two dimensions produced by illuminating the object with a plurality of sources of coherent light, each source of coherent light being of a different color to produce an object-bearing beam of each color, positioning a detector sensitive to each color of the coherent light in the path of the object-bearing beam, and directing light coherent with each color of said coherent light onto the detector at finite angles with respect to the corresponding object-bearing beams to form interference patterns on the detector, the directed light of each color of coherent light being directed onto the detector at a different angle.

Claim 25

A complex hologram consisting of a plurality of holograms of portions of a total amount of information superimposed on a common photosensitive recording medium produced by illuminating a first portion of a total amount of information with a source of coherent radiation to provide an object-bearing beam, positioning a detector sensitive to said coherent radiation in the path of said object-bearing beam, directing radiation coherent with the first-named coherent radiation as a reference beam onto the detector at a finite angle with respect to said object-bearing beam to produce therewith a pattern of interference fringes forming a first diffraction grating, illuminating a second portion of the total amount of information with coherent radiation to provide a second object-bearing beam, maintaining the detector in the path of the second object-bearing beam, and directing radiation coherent with the coherent radiation illuminating the second portion of said total amount of information as a second reference beam onto the detector at a finite angle with respect to the second object-bearing beam to produce a second pattern of interference fringes on the detector forming a second diffraction grating, each of the finite angles having a different spatial relation with respect to the detector whereby the second diffraction grating has an orientation different from the first diffraction grating of the complex hologram.

Claim 26

A complex hologram consisting of a plurality of holograms of portions of a total amount of information superimposed on a common photosensitive recording medium produced by illuminating a first portion of a total amount of information with a source of coherent radiation to provide an object-bearing beam, positioning a detector sensitive to said coherent radiation in the path of said object-bearing beam, directing radiation coherent with the first-named coherent radiation as a reference beam onto the detector at a finite angle with respect to said object-bearing beam to produce therewith a pattern of interference fringes forming a first diffraction grating, illuminating a second portion of the total amount of information with coherent radiation to provide a second object-bearing beam, maintaining the detector in the path of the second object-bearing beam, and directing radiation coherent with the coherent radiation illuminating the second portion of said total amount of information as a second reference beam onto the detector at a finite angle with respect to the second object-bearing beam to produce a second pattern of interference fringes on the detector forming a second diffraction grating, each of the finite angles having a different spatial relation with respect to the detector whereby the second diffraction grating has an orientation different from the first diffraction grating of the complex hologram.

Claim 27

An artificial off-axis hologram produced according to the method of claim 1.