Optical: systems and elements – Holographic system or element – Hardware for producing a hologram
Reexamination Certificate
2006-08-15
2006-08-15
Boutsikaris, Leonidas (Department: 2872)
Optical: systems and elements
Holographic system or element
Hardware for producing a hologram
C359S012000, C430S001000, C430S002000
Reexamination Certificate
active
07092134
ABSTRACT:
The present invention relates to a method and an apparatus for forming a hologram from a mask. According to the invention a photoresist is used as the holographic recording medium and the planes of polarisation of the object and reference beams incident on the holographic recording medium are arranged such that their polarisation vectors are substantially mutually orthogonal in the holographic recording medium and such that the polarisation vectors of the incident and totally internally reflected reference beams are also substantially orthogonal. Preferably, just the transmission hologram is formed in the holographic recording layer.
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Carnal Olivier H.
Clube Francis Stace Murray
Han Woo-Sung
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