Double diffraction white light imaging without intermediary elements / Imagem por dupla difração com luz branca sem elementos intermediarios

AUTOR(ES)
DATA DE PUBLICAÇÃO

2007

RESUMO

We present the analysis of the formation of images by diffractive elements using white light by performing ray-tracing through main directions. The first system we describe is composed of two diffraction gratings and a slit, the second by two bi-dimensional spiral elements and a hole aperture, generating ortoscopic (natural relief) images. From this we had found a system of two diffractive elements without any intermediating element that makes and image which is panchromatic because gives original colors. Furthermore, we present a transmission imaging system that projects objects by means of a linear source (extended filament) and a diffractive element. Profiting the imaging properties of that linear source we also developed a system for mirrors and lenses having no sharpness to generate sharp images. By studying these systems we seek to find a way to achieve the making of convergent images and we already offer new ways to exhibit attractive and large three-dimensional images

ASSUNTO(S)

holografia otica - difração imaging systems holography imagem tridimensional diffractive optics three-dimensional imaging grades de difração diffractive gratings sistemas imageadores

ACESSO AO ARTIGO

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