The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 21, 2020

Filed:

Dec. 29, 2016
Applicant:

North Inc., Kitchener, CA;

Inventors:

David Ziegler, Lausanne, CH;

Mickael Guillaumee, Neuchätel, CH;

Christophe Moser, Lausanne, CH;

Assignee:

North Inc., Kitchener, ON, CA;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03H 1/02 (2006.01); G03H 1/18 (2006.01); G03H 1/04 (2006.01); G03H 1/26 (2006.01); G02B 27/01 (2006.01); G02B 27/58 (2006.01); G02B 5/32 (2006.01);
U.S. Cl.
CPC ...
G03H 1/181 (2013.01); G02B 27/0172 (2013.01); G03H 1/02 (2013.01); G03H 1/0248 (2013.01); G03H 1/0402 (2013.01); G03H 1/265 (2013.01); G03H 1/2645 (2013.01); G02B 5/32 (2013.01); G02B 27/58 (2013.01); G02B 2027/0174 (2013.01); G02B 2027/0178 (2013.01); G03H 2001/0439 (2013.01); G03H 2001/266 (2013.01); G03H 2260/30 (2013.01);
Abstract

Various embodiments are generally directed to techniques for processing holographic recording media. Some embodiments are particularly directed to processing a raw holographic recording medium into an apodized holographic recording medium. For example, a raw holographic recording medium may include a plurality of photosensitive molecules uniformly distributed throughout that are able to record an interference pattern to create a hologram. However, when a photosensitive molecule is desensitized, such as by exposure to incoherent light, its photosensitivity is lost and the molecule may no longer be able to record an interference pattern of coherent light. Various embodiments described herein may include an apodized holographic recording medium that has been exposed to incoherent light in a manner to desensitize some photosensitive molecules therein such that the remaining photosensitive molecules have a non-uniform distribution.


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