Real time moving scene holographic camera system

Claim 1

An apparatus for producing holographic motion pictures of a moving scene, said moving scene having a velocity of motion represented by X and Y velocity components, comprising: a light source for producing a coherent beam of radiation; first beam splitter means positioned to receive said coherent beam and to split said coherent beam into a first signal beam which passes straight through said first beam splitter means and becomes incident upon said moving scene and into a reference beam which is reflected; second beam splitter means positioned to receive said reflected reference beam and to split a second signal beam from said reference beam, whereby said reference beam passes straight through said second beam splitter means and said second signal beam is reflected; a first light reflector means positioned to reflect said reference beam, after said reference beam passes through said second beam splitter means; a second light reflector means positioned to reflect said second signal beam so that it becomes incident upon said moving scene, after said second signal beam is split from said reference beam by said second beam splitter means; a motion picture camera back, said camera back having a film mounted on it, said film being positioned to receive said reference beam after reflection from said first light reflector means and said first and second signal beams after they are reflected from said moving scene, whereby said reference beam and said first and second signal beams all interfere with one another in the plane of said film; said first beam splitter means being positioned at the first focus of a first ellipse, and said second light reflector means being positioned at the first focus of a second ellipse, the said two ellipses being interrelated by having their long axes perpendicular to each other and their second foci coinciding, said two ellipses being oriented so that said X velocity component of said moving scene is tangent to said first ellipse, said Y velocity component of said moving scene is tangent to said second ellipse and said long axes of said two ellipses are respectively parallel to said X and Y velocity components, the plane of said film being positioned so as to pass through the said coinciding second foci of the said two ellipses, said moving scene being positioned on the circumference of each of said ellipses in the vicinity of the intersection of the circumference of each said ellipse with its own semi minor axis, the size and shape of each of said two ellipses and the location of their said foci being determined by the formula Vt ( Delta L/2) a /b Delta x(or Delta y), where V is the velocity component; t is the time of exposure L is the optical path length of said first signal beam and is equal to the ellipse constant, 2a, Delta L is the maximum change in length L caused by the component of scene travel which is tolerable without causing blurring; a is the semi major axis; b is the semi minor axis; d is the distance of separation between a focus and the origin of the elipse; and a and b are related to the third ellipse parameter d by the formula a2 b2 + d2.

Claim 2

An apparatus for producing holographic motion pictures of a moving scene, said moving scene having a velocity of motion represented by X and Y velocity components, comprising: a light source for producing a coherent beam of radiation; first beam splitter means positioned to receive said coherent beam and to split said coherent beam into a first signal beam which passes straight through said first beam splitter means and becomes incident upon said moving scene and into a reference beam which is reflected; second beam splitter means positioned to receive said reflected reference beam and to split a second signal beam from said reference beam, whereby said reference beam passes straight through said second beam splitter means and said second signal beam is reflected; a first light reflector means positioned to reflect said reference beam, after said reference beam passes through said second beam splitter means; a second light reflector means positioned to reflect said second signal beam so that it becomes incident upon said moving scene, after said second signal beam is split from said reference beam by said second beam splitter means; a motion picture camera back, said camera back having a film mounted on it, said film being positioned to receive said reference beam after reflection from said first light reflector means and said first and second signal beams after they are reflected from said moving scene, whereby said reference beam and said first and second signal beams all interfere with one another in the plane of said film; said first beam splitter means being positioned at the first focus of a first ellipse, and said second light reflector means being positioned at the first focus of a second ellipse, the said two ellipses being interrelated by having their long axes perpendicular to each other and their second foci coinciding, said two ellipses being oriented so that said X velocity component of said moving scene is tangent to said first ellipse, said Y velocity component of said moving scene is tangent to said second ellipse and said long axes of said two ellipses are respectively parallel to said X and Y velocity components, the plane of said film being positioned so as to pass through the said coinciding second foci of the said two ellipses, said moving scene being positioned on the circumference of each of said ellipses in the vicinity of the intersection of the circumference of each said ellipse with its own semi minor axis, the size and shape of each of said two ellipses and the location of their said foci being determined by the formula Vt ( Delta L/2) a /b Delta x(or Delta y), where V is the velocity component; t is the time of exposure L is the optical path length of said first signal beam and is equal to the ellipse constant, 2a, Delta L is the maximum change in length L caused by the component of scene travel which is tolerable without causing blurring; a is the semi major axis; b is the semi minor axis; d is the distance of separation between a focus and the origin of the elipse; and a and b are related to the third ellipse parameter d by the formula a2 b2 + d2.