13 citations · 67 across the 22 of their papers we have counts for
16 papers · 1 filter
Pseudoscopic Imaging by Means of a Holographic Screen
Jose J. Lunazzi
Pseudoscopic enlarged images are obtained by projecting diffraction-encoded images onto a diffractive screen
Volume Images Vector Display Based on a Diffractive Screen
Jose J. Lunazzi, M. Diamand
A white light system based on a 65 cm x 35 cm diffractive screen is demonstrated to be capable of displaying three-dimensional figures with continuous horizontal parallax. Three co…
Construction of white-light holographic screens
Jose J. Lunazzi, Daniel S. F. Magalhaes, Rolando L. Serra
In this paper we describe one setup employed for the recording of two types of holographic screens that can be used in white-light applications. We show how to obtain holographic s…
Enlarging Holograms Under White Light, a Way to Save Holographic Material
J. J. Lunazzi
We developed techniques for employing holographic screens under white light, first exhibited to the public in 1989 (3) (4) which demonstrated the possibility of enlarging holograms…
White Light Colour Photography for Rendering Holoimages in a Diffractive Screen
J. J. Lunazzi
The capability of color encoding the continuous sequence of views from a scene was demonstrated previously by the author (1990). In the present work, the scheme for this process is…
Holo-Television System with a Single Plane
J. J. Lunazzi, D. S. F. Magalhaes, N. I. R. Rivera +1
We show a system capable of projecting a video scene on a white-light holographic screen to obtain a kind of image that results in a plane in front of the screen. This holographic…
New possibilities in the utilization of holographic screens
Jose J. Lunazzi
Directionality in a holographic screen may be useful for projecting images to be seen in complete horizontal parallax. The continuous sequence of views from an object may be transf…
Imaging with two spiral diffracting elements intermediated by a pinhole
Jose J. Lunazzi, Noemi I. R. Rivera, Daniel S. F. Magalhaes
A pseudoscopic (inverted depth) image made with spiral diffracting elements intermediated by a pinhole is explained by its symmetry properties. The whole process is made under comm…
Holophotography with a diffraction grating
J. J. Lunazzi
Color encoding of depth is shown to occur naturally in images of objects observed through diffraction gratings under common white light illumination. A synthetic image is then obta…
The use of diffractive screens for electronic imaging
J. J. Lunazzi
Diffractive screens are high-resolution elements with capability for generating holographic-like images from a sequence of planes where TV frames are seen oblique to it. If we proj…
Pseudoscopic imaging in a double diffraction process with a slit: critical point properties
Jose J. Lunazzi, Noemi I. Rivera
Pseudoscopic (inverted depth) images that keep a continuous parallax were shown to be possible by use of a double diffraction process intermediated by a slit. One diffraction grati…
Pseudoscopic imaging in a double diffraction process with a slit
Jose J. Lunazzi, Noemi I. Rivera
Pseudoscopic images that keep the continuous parallax are shown to be possible due to a double diffraction process intermediated by a slit. One diffraction grating acts as a wavele…
Lensless Slide Projection: A Demonstrative Experience
J. J. Lunazzi
A 2D transparency may be projected on a diffractive screen by just illuminating it with a filament lamp of the same height. Sharpness of the filament width is naturally related to…
Double Diffraction White Light Imaging: First Results with Bidimensional Diffraction
Jose J Lunazzi, Noemi I Rodriguez Rivera
The double diffraction of white light can produce a thin-prism-like image in certain conditions by using ordinary diffraction gratings. The diffractive deviation of rays happens ma…
Holoprojection of Images by a Double Diffraction Process
J. J. Lunazzi
Three dimensional images having continuous horizontal parallax were developed by wavelength enconding of view followed by a natural decoding process of projection onto a diffractiv…
White-Light Imaging in a Two Gratings Diffraction Process
José J. Lunazzi, Noemi I. R. Rivera
A diffractive arrangement that allows imaging of an object without any intermediate or complementary element is presented. This optical system with only two diffraction gratings fo…