US 6,982,817 B1 | ||
Method, device and laser system for producing screen holograms, and screen hologram | ||
Thorsteinn Halldorsson, Munich (Germany) | ||
Assigned to EADS Deutschland GmbH, Munich (Germany) | ||
Appl. No. 10/31,438 PCT Filed Jul. 06, 2000, PCT No. PCT/DE00/02220 § 371(c)(1), (2), (4) Date May 23, 2002, PCT Pub. No. WO01/07942, PCT Pub. Date Feb. 01, 2001. |
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Claims priority of application No. 199 34 162 (DE), filed on Jul. 21, 1999. | ||
Int. Cl. G03H 1/26 (2006.01) |
U.S. Cl. 359—22 | 17 Claims |
1. A method of producing a video screen hologram for forming a projected video image thereon, said video screen hologram being
formed as a holographic image of a real video screen by illuminating the real video screen with narrowband light to generate
a hologram of the real video screen, said method comprising:
making a plurality of individual recordings by sequentially illuminating a plurality of different partial areas of the real
video screen; and
forming a video screen hologram of the entire video screen by a composition of the individual recordings; wherein
illumination of the video screen is performed by guiding a scanning pulsed laser beam over the video screen; and
the video screen hologram is one of a contact hologram and an image plane hologram, whereby during reconstruction of said
holographic image of a real video screen, said projected video image appears in a hologram plane of said video screen hologram.
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