Method and apparatus of producing an arcuate rainbow hologram
First Claim
1. A method for making a hologram of an object comprising the steps of:
- (a) limiting the information content of a wave front of coherent light representing the object to a selected portion of the wave front the selected portion forming an arcuate window through which the selected portion is preserved and the window having a length substantially greater than its thickness;
(b) deriving an information-limited image of the object from the information-limited wave front; and
,(c) recording the image on an image-receiving surface.
1 Assignment
0 Petitions
Accused Products
Abstract
A two-dimensional, white light illuminable arcuate rainbow hologram that is potentially viewable from 360° is formed by limiting the information content of a wave front representing a reflection of monochromatic coherent light off of the object desired to be holographed. The information content is limited to a selected portion of the wave front, the selected portion passing through or upon an arcuate window which preserves the selected portion. The arcuate window is formed using an arcuate aperture, a flat arcuate master hologram, or a cylindrical shell of laser light used as a reference beam. The arcuate rainbow hologram is viewable from 360° if the arcuate window is annular, i.e. circular. If the window is a half-circle or other arc angle, the window of viewability will correspond to the angle of the arcuate window that limits the information content of the wave front representing the reflection of monochromatic coherent light off of the object to be holographed. The arcuate rainbow hologram may also be multiplexed, where the "object" is a set of two-dimensional images of a subject from different perspectives.
-
Citations
62 Claims
-
1. A method for making a hologram of an object comprising the steps of:
-
(a) limiting the information content of a wave front of coherent light representing the object to a selected portion of the wave front the selected portion forming an arcuate window through which the selected portion is preserved and the window having a length substantially greater than its thickness; (b) deriving an information-limited image of the object from the information-limited wave front; and
,(c) recording the image on an image-receiving surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
-
-
19. A method for making a hologram of an object comprising the steps of:
-
(a) limiting the information content of a wave front of coherent light representing the object by occluding all but a selected portion through an arcuate aperture having a length substantially greater than its thickness; (b) forming an information-limited real image of the object from the information-limited wave front; (c) combining the information-limited real image with a reference wave front of light having a select phase relationship with the information-limited wave front to form an interference pattern; (d) positioning an image-receiving surface proximate to the information-limited real image; and (e) recording the interference pattern on the image-receiving surface.
-
-
20. A method for making a hologram of an object comprising the steps of:
-
(a) receiving a wave front representing the object on an arcuate image-receiving surface; (b) interfering a first coherent reference light having selected waveform and direction with the wave front representing the object at the image-receiving surface to form a master; (c) illuminating the master with an illuminating waveform to form an image that is to be recorded; (d) receiving the information-limited image on a second image-receiving surface proximate to the information-limited real image; (e) interfering a second coherent reference light having selected form and direction with the information-limited real image at the second image receiving surface to form an information-limited holographic image; and (f) recording the interference pattern on the image-receiving surface.
-
-
21. A method for making a hologram of an object comprising the steps of:
-
(a) recording the wave front representing the object and a reference waveform upon an image-receiving surface to form a master; (b) illuminating the master with an illuminating wave front to form an image that is to be recorded, the illuminating wave front being propagated in an arcuate geometry; (c) combining the image with a second reference waveform having a select phase relationship with the illuminating wave front to form an interference pattern; (d) positioning an image-receiving surface proximate to the real image; and (e) recording the interference pattern on the image-receiving surface. - View Dependent Claims (22, 23, 24, 25, 26)
-
-
27. A method for making a hologram of an object comprising the steps of:
-
(a) receiving a wave front representing the object on an image-receiving surface; (b) interfering a first coherent reference light having an arcuate geometry with the wave front representing the object at the image-receiving surface to form a master; (c) illuminating the master with an illuminating waveform to form an image that is to be recorded; (d) receiving the information-limited image on a second image-receiving surface proximate to the information-limited real image; (e) interfering a second coherent reference light having selected form and direction with the information-limited real image at the second image receiving surface to form an information-limited holographic image; and (f) recording the interference pattern on the image-receiving surface.
-
-
28. Apparatus for making a hologram of an object comprising:
-
(a) means for generating a coherent beam of light that forms a reference beam;
the reference beam being directed toward an image receiving surface;(b) means for generating a wave front of coherent light representing the object to be recorded, the wave front representing the object having a given information content; (c) means for limiting the information of a wave front representing the object to a selected portion of the wave front, the means forming an arcuate window through which the selected portion is preserved and the window having a length substantially greater than its thickness; and (d) recording means that receive the reference wave front and the information-limited wave front representing the object. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35)
-
-
36. A hologram of an object prepared by a process comprising the steps of:
-
(a) illuminating the object with coherent light to create a reflection therefrom having a given information content; (b) limiting the information content of a wave front representing the reflection of the illuminated object to a selected portion of the wave front, the selected portion forming an arcuate window through which the selected portion is preserved and the window having a length substantially greater than its thickness; (c) deriving an information-limited image of the object from the information-limited wave front; and (d) recording the image on an image-receiving surface. - View Dependent Claims (37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52)
-
-
53. A hologram of an object prepared by a process comprising the steps of:
-
(a) limiting the information content of a wave front of coherent light representing the object by occluding all but a selected portion through an arcuate aperture having a length substantially greater than its thickness; (b) forming an information-limited real image of the object from the information-limited wave front; (c) combining the information-limited real image with a reference wave front of light having a select phase relationship with the information-limited wave front to form an interference pattern; (d) positioning an image-receiving surface proximate to the information-limited real image; and (e) recording the interference pattern on the image-receiving surface. - View Dependent Claims (54)
-
-
55. A hologram of an object prepared by a process comprising the steps of:
-
(a) receiving a wave front representing the object on an arcuate image-receiving surface; (b) interfering a first coherent reference light having selected waveform and direction with the wave front representing the object at the image-receiving surface to form a master; (c) illuminating the master with an illuminating waveform to form an image that is to be recorded; (d) receiving the information-limited image on a second image-receiving surface proximate to the information-limited real image; and (e) interfering a second coherent reference light having selected form and direction with the information-limited real image at the second image receiving surface to form an information-limited holographic image; and (f) recording the interference pattern on the image-receiving surface.
-
-
56. A hologram of an object prepared by a process comprising the steps of:
-
(a) recording the wave front representing the object and a reference waveform upon an image-receiving surface to form a master; (b) illuminating the master with an illuminating wave front to form an image that is to be recorded, the illuminating wave front being propagated in an arcuate geometry; (c) combining the image with a second reference waveform having a select phase relationship with the illuminating wave front to form an interference pattern; (d) positioning an image-receiving surface proximate to the real image; and (e) recording the interference pattern on the image-receiving surface. - View Dependent Claims (57, 58, 59, 60, 61)
-
-
62. A hologram of an object prepared by a process comprising the steps of:
-
(a) receiving a wave front representing the object on an image-receiving surface; (b) interfering a first coherent reference light having an arcuate geometry with the wave front representing the object at the image-receiving surface to form a master; (c) illuminating the master with an illuminating waveform to form an image that is to be recorded; (d) receiving the information-limited image on a second image-receiving surface proximate to the information-limited real image; (e) interfering a second coherent reference light having selected form and direction with the information-limited real image at the second image receiving surface to form an information-limited holographic image; and (f) recording the interference pattern on the image-receiving surface.
-
Specification