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US 8,817,349 B2Granted
Photographic hologram system
AssigneeE-Lon Optronics Co., Ltd.
InventorMing Tang Yao
Life of this patent
Estimating the term…
Abstract
A photographic hologram system is provided. The use of an image slicing process and/or the arrangement of half-cylindrical lens in the optical path of an optical light wave and upstream of the film is effective to reduce the times of multiple exposures of the film. As a consequence, the brightness of the reconstructed image is enhanced.
Claims15
A photographic hologram system, comprising:
- an illumination unit for providing a coherent beam;
- a beam splitting unit for splitting said coherent beam into a reference beam and an object beam;
- a reference beam processing unit for receiving said reference beam and outputting a reference light wave with respect to said reference beam;
- an image generating unit for providing a first image and a second image of a target object;
- an object beam processing unit comprising an object beam imaging system for guiding said object beam to said image generating unit, thereby generating an object light wave, wherein said object beam imaging system comprises a half-cylindrical lens, and said object light wave carries an image information of said first image and said second image following in time;
- and
- a film;
- wherein said half-cylindrical lens is positioned directly in front of said film, and when said reference light wave and said object light wave are incident to said film, said reference light wave and said object light wave are interfered with each other to result in a plurality of interference fringes of two-dimensional areas with respect to said first image and with respect to said second image on said film, wherein said object light wave is directed from said image generating unit to said film through said half-cylindrical lens, wherein, exclusive of being located right on said focal plane distance, said film is located within a depth-of-field range around a focal plane distance of said object beam imaging system, and a portion of said interference fringes of said two-dimensional area with respect to the first image is overlapped with a portion of said interference fringes of said two-dimensional area with respect to the second image.
5 more elements
A photographic hologram system comprising:
- an illumination unit;
- a beam splitting unit;
- a reference beam processing unit;
- an image generating unit;
- an object beam processing unit;
- and
- a film;
- wherein said image generating unit captures multiple image frames of of a target object with the preset number of capture pixels, and processes said multiple image frames with the preset number of projection pixels, then said processed multiple image frames are recorded on said film, wherein the number of projection pixels is lower than the number of capture pixels, and multiple image information of said multiple image frames with the preset number of projection pixels are complementary to each another, and said recorded multiple image frames on said film have a plurality of two-dimensional areas respectively with respect to said multiple image frames and at least a portion of each said two-dimensional area with respect to one of said multiple image frames is overlapped with said another two-dimensional area.
5 more elements
Dependencies are inferred from the claim text.