Time average holographic construction techniques using a modulated beam

Claim 1

A method of constructing a hologram of an object which is vibrating with a fundamental frequency and with different amplitudes at various points thereof, comprising the steps of: illuminating said object with coherent radiation of a predetermined frequency, thereby generating object-modified radiation, placing a hologram detector in the path of said object modified radiation, and simultaneously directing onto said hologram detector a coherent referEnce radiation beam of only one predominate frequency which differs from the object illuminating radiation frequency by an integral multiple of at least two times the object vibrating fundamental frequency.

Claim 2

A method of constructing a hologram of an object which is vibrating with a fundamental frequency and with different amplitudes at various points thereof, comprising the steps of: illuminating said object with coherent radiation of a predetermined frequency, thereby generating object-modified radiation, placing a hologram detector in the path of said object modified radiation, and simultaneously directing onto said hologram detector a coherent referEnce radiation beam of only one predominate frequency which differs from the object illuminating radiation frequency by an integral multiple of at least two times the object vibrating fundamental frequency.

Claim 3

A method of determining the pattern of vibration of an object which is vibrating with a fundamental frequency and with different amplitudes at various points thereof, comprising the steps of, illuminating said object with coherent light radiation of a predetermined frequency, thereby generating object-modified radiation, placing a hologram detector in the path of said object modified radiation, simultaneously directing onto said hologram detector a coherent reference light radiation beam of only one predominate frequency which differs from the object illuminating radiation frequency by an integral multiple of the object vibrating fundamental frequency, illuminating said hologram detector with a reconstructing light beam in a manner to generate an image carrying diffracted beam of light, and positioning viewing optics in said image carrying diffracted beam and focusing said optics onto a reconstructed image of said object.

Claim 4

A method of determining the pattern of vibration of an object which is vibrating with a fundamental frequency and with different amplitudes at various points thereof, comprising the steps of, illuminating said object with coherent light radiation of a predetermined frequency, thereby generating object-modified radiation, placing a hologram detector in the path of said object modified radiation, simultaneously directing onto said hologram detector a coherent reference light radiation beam of only one predominate frequency which differs from the object illuminating radiation frequency by an integral multiple of the object vibrating fundamental frequency, illuminating said hologram detector with a reconstructing light beam in a manner to generate an image carrying diffracted beam of light, and positioning viewing optics in said image carrying diffracted beam and focusing said optics onto a reconstructed image of said object.

Claim 6

A method of constructing a hologram of an object which is vibrating with a given motion function and with different amplitudes at various points thereof, comprising the steps of: illuminating said vibrating object with coherent radiation of a predetermined frequency, thereby generating a frequency modulated object modified radiation beam, placing a radiation sensitive hologram detector in the path of said frequency modulated object modified radiation beam, simultaneously directing toward said hologram detector a beam of reference radiation that is mutually coherent with object illuminating radiation, and modulating said reference beam to provide a multiplicity of radiation wavelength components in the reference beam prior to its striking the detector, whereby said hologram detector is exposed to an interference pattern formed by the frequency modulated object modified and frequency modulated reference radiation beams.

Claim 7

A method of constructing a hologram of an object which is vibrating with a given motion function and with different amplitudes at various points thereof, comprising the steps of: illuminating said vibrating object with coherent radiation of a predetermined frequency, thereby generating a frequency modulated object modified radiation beam, placing a radiation sensitive hologram detector in the path of said frequency modulated object modified radiation beam, simultaneously directing toward said hologram detector a beam of reference radiation that is mutually coherent with object illuminating radiation, and modulating said reference beam to provide a multiplicity of radiation wavelength components in the reference beam prior to its striking the detector, whereby said hologram detector is exposed to an interference pattern formed by the frequency modulated object modified and frequency modulated reference radiation beams.

Claim 8

A method of determining the pattern of vibration of an object which is vibrating with a fundamental frequency and with different amplitudes of various points thereof, comprising the steps of, illuminating said object with coherent radiation of a predetermined frequency, thereby generating object-modified radiation, placing a hologram detector in the path of said object modified radiation, simultaneously directing onto said hologram detector a coherent reference radiation beam of only one predominate frequency which differs from the object illuminating radiation frequency by an integral multiple of the object vibrating fundamental frequency, said integral multiple being equal to at least two, illuminating said hologram detector with a reconstructing light beam in a manner to generate an image carrying diffracted beam of light, and positioning viewing optics in said image carrying diffracted beam and focusing said optics onto a reconstructed image of said object.

Claim 9

A method of determining the pattern of vibration of an object which is vibrating with a fundamental frequency and with different amplitudes of various points thereof, comprising the steps of, illuminating said object with coherent radiation of a predetermined frequency, thereby generating object-modified radiation, placing a hologram detector in the path of said object modified radiation, simultaneously directing onto said hologram detector a coherent reference radiation beam of only one predominate frequency which differs from the object illuminating radiation frequency by an integral multiple of the object vibrating fundamental frequency, said integral multiple being equal to at least two, illuminating said hologram detector with a reconstructing light beam in a manner to generate an image carrying diffracted beam of light, and positioning viewing optics in said image carrying diffracted beam and focusing said optics onto a reconstructed image of said object.

Claim 10

A method of constructing a hologram of an object which is vibrating with a given motion function and with different amplitudes at various points thereof, comprising the steps of: illuminating said object with coherent radiation of a predetermined frequency, thereby generating a frequency modulated object modified radiation beam, placing a hologram detector in the path of said object modified radiation beam, simultaneously directing toward said hologram detector a beam of reference radiation that is mutually coherent with said object illuminating radiation, and frequency modulating said reference beam prior to its striking the detector with a Frequency and amplitude that are substantially equal to the frequency and amplitude of vibration of at least one object point, said frequency modulation occurring during exposure of said hologram detector, whereby a hologram is formed from which an image of the object may be reconstructed with a bright reconstruction of said at least one object point and with a fringe pattern superimposed over other points of the object to indicate portions of the object which are vibrating with either an amplitude or frequency that is different from that of said at least one object point.

Claim 11

A method of constructing a hologram of an object which is vibrating with a given motion function and with different amplitudes at various points thereof, comprising the steps of: illuminating said object with coherent radiation of a predetermined frequency, thereby generating a frequency modulated object modified radiation beam, placing a hologram detector in the path of said object modified radiation beam, simultaneously directing toward said hologram detector a beam of reference radiation that is mutually coherent with said object illuminating radiation, and frequency modulating said reference beam prior to its striking the detector with a Frequency and amplitude that are substantially equal to the frequency and amplitude of vibration of at least one object point, said frequency modulation occurring during exposure of said hologram detector, whereby a hologram is formed from which an image of the object may be reconstructed with a bright reconstruction of said at least one object point and with a fringe pattern superimposed over other points of the object to indicate portions of the object which are vibrating with either an amplitude or frequency that is different from that of said at least one object point.

Claim 12

A method of constructing a hologram of a vibrating object, comprising the steps of: illuminating the vibrating object with coherent radiation of a single frequency, thereby forming a frequency modulated object modified radiation beam that includes a certain wavelength distribution of radiation from at least one vibrating object point, positioning a hologram detector in the path of said object modified radiation beam, and simultaneously directing onto said hologram detector a reference beam of radiation substantially consisting of said certain wavelength distribution, whereby interference of the object modified and reference beams forms a hologram from which an image of the object may be reconstructed with a bright reconstruction of said at least one object point and with a fringe pattern superimposed over other points of the object which indicates object portions that are vibrating with either a different amplitude or frequency from that of said at least one object point.

Claim 13

A method of constructing a hologram of a vibrating object, comprising the steps of: illuminating the vibrating object with coherent radiation of a single frequency, thereby forming a frequency modulated object modified radiation beam that includes a certain wavelength distribution of radiation from at least one vibrating object point, positioning a hologram detector in the path of said object modified radiation beam, and simultaneously directing onto said hologram detector a reference beam of radiation substantially consisting of said certain wavelength distribution, whereby interference of the object modified and reference beams forms a hologram from which an image of the object may be reconstructed with a bright reconstruction of said at least one object point and with a fringe pattern superimposed over other points of the object which indicates object portions that are vibrating with either a different amplitude or frequency from that of said at least one object point.

Claim 14

A method of determining a pattern of vibration of an object which is vibrating with a fundamental frequency and with different amplitudes at various points thereof, comprising the steps of: illuminating said vibrating object with coherent radiation of a predetermined frequency, thereby generating a frequency modulated object-modified radiation beam, placing a hologram detector in the path of said object-modified radiation beam, simultaneously directing toward said hologram detector a beam of reference radiation that is mutually coherent with said object illuminating radiation, frequency modulating said reference radiation beam prior to its striking the detector, whereby the hologram detector is exposed to an interference of the object-modified and reference beams to form a hologram, illuminating said hologram with a reconstructing light beam in a manner to generate an image carrying diffracted beam of light, and positioning viewing optics in said image carrying diffracted beam and focusing said optics onto a reconstructed image of said object.

Claim 15

A method of determining a pattern of vibration of an object which is vibrating with a fundamental frequency and with different amplitudes at various points thereof, comprising the steps of: illuminating said vibrating object with coherent radiation of a predetermined frequency, thereby generating a frequency modulated object-modified radiation beam, placing a hologram detector in the path of said object-modified radiation beam, simultaneously directing toward said hologram detector a beam of reference radiation that is mutually coherent with said object illuminating radiation, frequency modulating said reference radiation beam prior to its striking the detector, whereby the hologram detector is exposed to an interference of the object-modified and reference beams to form a hologram, illuminating said hologram with a reconstructing light beam in a manner to generate an image carrying diffracted beam of light, and positioning viewing optics in said image carrying diffracted beam and focusing said optics onto a reconstructed image of said object.

Claim 17

A method of constructing a hologram of an object that is vibrating as the result of excitation by a non-sinusoidal mechanical function, said object vibration having a fundamental frequency and having different vibratory amplitudes at various points thereof, comprising the steps of: illuminating said non-sinusoidally vibrating object with coherent radiation of a predetermined frequency, thereby generating object-modified radiation, placing a hologram detector in the path of said object-modified radiation, and simultaneously directing onto said hologram detector a coherent reference radiation beam of only one predominate frequency which differs from the object illuminating radiation frequency by an iNtegral multiple of the object vibrating fundamental frequency.

Claim 18

A method of constructing a hologram of an object that is vibrating as the result of excitation by a non-sinusoidal mechanical function, said object vibration having a fundamental frequency and having different vibratory amplitudes at various points thereof, comprising the steps of: illuminating said non-sinusoidally vibrating object with coherent radiation of a predetermined frequency, thereby generating object-modified radiation, placing a hologram detector in the path of said object-modified radiation, and simultaneously directing onto said hologram detector a coherent reference radiation beam of only one predominate frequency which differs from the object illuminating radiation frequency by an iNtegral multiple of the object vibrating fundamental frequency.

Claim 20

A method of constructing a hologram of a portion of an object that is vibrating with a fundamental frequency and with different amplitudes at various points thereof, said object characterized by a non-planar surface when at rest, comprising the steps of: illuminating said non-planar object surface with coherent radiation of a predetermined frequency, thereby generating object-modified radiation, placing a hologram detector in the path of said object-modified radiation, and simultaneously directing onto said hologram detector a coherent reference radiation beam of only one predominate frequency which differs from the object illuminating radiation frequency by an integral multiple of the object vibrating fundamental frequency.

Claim 21

A method of constructing a hologram of a portion of an object that is vibrating with a fundamental frequency and with different amplitudes at various points thereof, said object characterized by a non-planar surface when at rest, comprising the steps of: illuminating said non-planar object surface with coherent radiation of a predetermined frequency, thereby generating object-modified radiation, placing a hologram detector in the path of said object-modified radiation, and simultaneously directing onto said hologram detector a coherent reference radiation beam of only one predominate frequency which differs from the object illuminating radiation frequency by an integral multiple of the object vibrating fundamental frequency.

Claim 23

A method of constructing a hologram of an object that is vibrating with a given motion function and with different amplitudes at various points thereof, comprising the steps of: directing a coherent radiation beam of a predetermined frequency toward said vibrating object, thereby generating a frequency modulated object-modified radiation beam, positioning a radiation sensitive hologram detector in the path of said frequency modulated object-modified radiation beam, simultaneously directing toward said hologram detector a beam of reference radiation that is mutually coherent with said object illuminating beam, and modulating said object illuminating beam to cause the vibrating object to be illuminated with a multiplicity of radiation wavelength components, whereby said hologram detector is exposed to an interference pattern formed between a single frequency coherent reference beam and an object-modified beam that has been modulated both by the object vibration and modulation of the object illuminating beam.

Claim 24

A method of constructing a hologram of an object that is vibrating with a given motion function and with different amplitudes at various points thereof, comprising the steps of: directing a coherent radiation beam of a predetermined frequency toward said vibrating object, thereby generating a frequency modulated object-modified radiation beam, positioning a radiation sensitive hologram detector in the path of said frequency modulated object-modified radiation beam, simultaneously directing toward said hologram detector a beam of reference radiation that is mutually coherent with said object illuminating beam, and modulating said object illuminating beam to cause the vibrating object to be illuminated with a multiplicity of radiation wavelength components, whereby said hologram detector is exposed to an interference pattern formed between a single frequency coherent reference beam and an object-modified beam that has been modulated both by the object vibration and modulation of the object illuminating beam.

Claim 25

A method of constructing a hologram of an object that is vibrating with a given motion function and with different amplitudes at various points thereof, comprising the steps of: directing a coherent radiation beam of a predetermined frequency toward said vibrating object, thereby generating a frequency modulated object-modified radiation beam, positioning a radiation sensitive hologram detector in the path of said frequency modulated object-modified radiation beam, simultaneously directing toward said hologram detector a beam of reference radiation that is mutually coherent with said object illuminating beam, and modulating said object-modified beam to provide a multiplicity of radiation wavelength components therein in addition to those generated by the vibrating object.

Claim 26

A method of constructing a hologram of an object that is vibrating with a given motion function and with different amplitudes at various points thereof, comprising the steps of: directing a coherent radiation beam of a predetermined frequency toward said vibrating object, thereby generating a frequency modulated object-modified radiation beam, positioning a radiation sensitive hologram detector in the path of said frequency modulated object-modified radiation beam, simultaneously directing toward said hologram detector a beam of reference radiation that is mutually coherent with said object illuminating beam, and modulating said object-modified beam to provide a multiplicity of radiation wavelength components therein in addition to those generated by the vibrating object.

Claim 27

A method of constructing a hologram of an object that is vibrating with a given motion function and with different amplitudes at various points thereof, comprising the steps of: directing a first coherent light beam toward said vibrating object and thence as an object-modified beam to a photosensitive holographic detector, simultaneously directing a second coherent light beam toward said hologram detector to intersect the object-modified beam, said second beam being mutually coherent with said first beam prior to its striking the object, and modulating either of the first or second beams to provide a multiplicity of radiation wavelength components therein prior to striking the detector.

Claim 28

A method of constructing a hologram of an object that is vibrating with a given motion function and with different amplitudes at various points thereof, comprising the steps of: directing a first coherent light beam toward said vibrating object and thence as an object-modified beam to a photosensitive holographic detector, simultaneously directing a second coherent light beam toward said hologram detector to intersect the object-modified beam, said second beam being mutually coherent with said first beam prior to its striking the object, and modulating either of the first or second beams to provide a multiplicity of radiation wavelength components therein prior to striking the detector.