Secured document, system for manufacturing same and system...

Details Secured document, system for manufacturing same and system... Secured document, system for manufacturing same and system...

2005-12-27

2005-12-27

Robinson, Mark A. (Department: 2872)

Optical: systems and elements

Holographic system or element

Authentication

C380S054000

Reexamination Certificate

active

06980336

ABSTRACT:
A document includes at least one drawing or data produced, for example, by printing. In addition, this document includes a hologram representing part of the document. The hologram of this document is recorded using a system including a prerecorded or electrically controllable optical modulator in which the image of at least part of the document is recorded. This modulator is designed to be combined with a layer of photosensitive material. A first reference wave illuminates the layer of photosensitive material. A second wave incident on the modulator and giving rise to a third object wave is also transmitted to the layer of photosensitive material in order to interfere with the reference wave in this layer.

REFERENCES:
patent: 3620590 (1971-11-01), Barker
patent: 3894756 (1975-07-01), Ward
patent: 4140373 (1979-02-01), Rull
patent: 4171864 (1979-10-01), Jung et al.
patent: 4832445 (1989-05-01), Haines et al.
patent: 5142383 (1992-08-01), Mallik
patent: 5455129 (1995-10-01), Bussard
patent: 5483363 (1996-01-01), Holmes et al.
patent: 5658411 (1997-08-01), Faykish
patent: 5920058 (1999-07-01), Weber et al.
patent: 6337752 (2002-01-01), Heckenkamp et al.
patent: 0 283 233 (1988-09-01), None
patent: 2 196 443 (1988-04-01), None
patent: 2 254 166 (1992-09-01), None

Affiliated with

Also associated with

Rating

Secured document, system for manufacturing same and system... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Secured document, system for manufacturing same and system..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Secured document, system for manufacturing same and system... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3489097