Concept

Optical jukebox

Publications associées (77)

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Optimal integration of daylighting and electric lighting systems using non-imaging optics - art. no. 667004

Jean-Louis Scartezzini, Friedrich Linhart

Electric lighting is responsible for a significant fraction of electricity consumption within non-residential buildings. Making daylight more available in office and commercial buildings can lead as a consequence to important electricity savings, as well a ...

Spie-Int Soc Optical Engineering, Po Box 10, Bellingham, Wa 98227-0010 Usa2007

Authentication of secure items by shape level lines

Roger Hersch, Sylvain Chosson

The disclosed method and system may be used for creating advanced protection means for various categories of documents (e.g. bank notes, identity documents, certificates, checks, diploma, travel documents, tickets) and valuable products (e.g. optical disks ...

2006

Semiconductor nanowires have received much attention owing to their potential use as building blocks of miniaturized electrical(1), nanofluidic(2) and optical devices(3). Although chemical nanowire synthesis procedures have matured and now yield nanowires ...

Nature Publishing Group2006

Observation of pulse delaying and advancement in optical fibers using stimulated Brillouin scattering

Luc Thévenaz, Kwang-Yong Song

We demonstrate experimentally that it is possible to control optically the group velocity of an optical pulse as it travels along an optical fiber. To achieve this control we use the effect of Stimulated Brillouin Scattering. In our experiments we have ach ...

2005

Reproduction of security documents and color images with metallic inks

Roger Hersch, Patrick Emmel

The present invention discloses methods and systems for printing by superposing a metallic ink and transparent inks. These methods and systems are useful for color separating images into superpositions of a metallic ink and transparent inks both for design ...

2004

Authentication of documents and articles by moire patterns

Roger Hersch, Sylvain Chosson

The present invention relies on the moiré patterns generated when superposing a base layer made of base band patterns and a revealing line grating (revealing layer). The produced moiré patterns comprise an enlargement and a transformation of the individual ...

2004

Privacy issues in RFID banknote protection schemes

Gildas Avoine

Radio Frequency Identification systems are in the limelight for a few years and become pervasive in our daily lives. These smart devices are nowadays embedded in the consumer items and may come soon into our banknotes. At Financial Cryptography 2003, Juels ...

2004

Parallel file striping on optical jukebox servers

Roger Hersch

In the near future, large digital media servers are expected to offer storage capacities in the order of petabytes. Servers made of clusters of PCs connected to jukeboxes may represent an interesting alternative compared with servers made of arrays of magn ...

IEEE2002

Optically programmable gate array

Demetri Psaltis

The Optically Programmable Gate Array (OPGA), an optical version of a conventional FPGA, benefits from a direct parallel interface between an optical memory and a logic circuit. The OPGA utilizes a holographic memory accessed by an array of VCSELs to progr ...

Spie-Int Soc Optical Engineering, Po Box 10, Bellingham, Wa 98227-0010 Usa2000

An innovative flexible and accurate packaging technique suited to fabricate low cost micro optoelectronic modules

René Salathé, Reymond Clavel

Several groups are presently investigating the opportunity to fabricate miniaturized optical devices characterized by high attachment precision. An automated surface mounted technique based on standardized supports of 10x10x4 mm(3) size and on active insit ...

2000