Lithograph with a trigger mask and method of producing...

Details Lithograph with a trigger mask and method of producing... Lithograph with a trigger mask and method of producing...

2008-06-10

2008-06-10

Angebranndt, Martin (Department: 1795)

Radiation imagery chemistry: process, composition, or product th

Holographic process, composition, or product

C430S002000, C359S035000, C359S009000

Reexamination Certificate

active

07384709

ABSTRACT:
A lithograph for producing digital holograms in a storage medium includes a light source for producing a write beam, the light source having drive means for the two-dimensional movement of the write beam relative to the storage medium and having a first objective for focusing the write beam onto the storage medium. Writing computer-generated holograms by means of optical lithography is solved in that: a two-dimensional trigger matrix is provided, means of producing a scanning beam are provided, a second objective for focusing the scanning beam onto the trigger matrix is provided, the drive means moves the scanning beam two-dimensionally relative to the surface of the trigger matrix, the movement of the scanning beam being coupled with the movement of the write beam, and means for generating a trigger signal to control the intensity of the write beam are connected to the trigger matrix.

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