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arXiv physics/0607057physics.optics
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狭缝双衍射过程中的赝像:临界点性质

Pseudoscopic imaging in a double diffraction process with a slit: critical point properties

Jose J. Lunazzi, Noemi I. Rivera

摘要:

通过使用由狭缝介导的双衍射过程,保持连续视差的伪视(倒置深度)图像是可能的。将光引导到狭缝的一个衍射光栅充当视图的波长编码器,而第二个衍射光栅解码投影图像。该过程导致在普通白光照明下的图像在临界点处放大到无限放大。我们表明,这一点对应于另一个简单对称的对象观测系统。我们的处理允许我们通过处理主射线方向来解释经验。

英文摘要:

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 grating directing light to the slit acts as a wavelength encoder of views, while a second diffraction grating decodes the projected image. The process results in the enlargement of the image under common white light illumination up to infinite magnification at a critical point. We show that this point corresponds to another simple-symmetry object-observer system. Our treatment allows us to explain the experience by just dealing with main ray directions.

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