Optical: systems and elements – Holographic system or element – For synthetically generating a hologram
Patent
1997-03-25
2000-03-14
Henry, Jon
Optical: systems and elements
Holographic system or element
For synthetically generating a hologram
359 33, G03H 108
Patent
active
06038042&
ABSTRACT:
Used as a propagation function is a half-plane propagation function which is restricted such that it has a value only within a half plane in a predetermined direction perpendicular to a propagating axis in a plane which is perpendicular to the propagating axis. According to a convolution integration with this function, the wavefront of object light on a hologram surface is determined, whereby hologram data is produced. Thus produced hologram is read out by means of readout light. After the light with a wavefront forming the conjugate image of the object to be viewed is blocked, the image of the object to be viewed is observed. Thus, a hologram, which has a high quality and from which the conjugate image is easily eliminated at the time of image reproduction, is produced while a recording device with a relatively low spatial resolution is used, and a three-dimensional form is displayed while the distortion with respect to the original image is reduced in thus produced hologram and the conjugate image is eliminated therefrom.
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Hamamatsu Photonics K.K.
Henry Jon
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