Csem Centre Suisse D'electronique Et De Microtechnique Sa Recherche Et Developpement

Csem Centre Suisse D'electronique Et De Microtechnique Sa-Recherche Et Dévelopment

Csem Centre Suisse D'electronique Et De Microtechnique Sa - Recherche Et Developpment

Centre Suisse D'electronique Et De Microtechnique Sa—recherche Et Developpement

Csem Centre Suisse D'electronique Et De Microtechnique Sa

Raphaël Pugin

Nicolas Blondiaux

Rolf Steiger

Bernard Wenger

Emmanuel Scolan

Harald Walter

Alexander Stuck

Edoardo Franzi

Ross Stanley

David Hasler

Rino Kunz

Stanley Ross

Mickaël Guillaumee

Myriam Losson

Véronique Monnier

Sébastien Lani

Rino E Kunz

Nicholas Raymond Hendricks

Ulrich Gubler

The present invention relates to a method for producing a timepiece comprising at least one first part produced by a microfabrication or microforming method in at least one first material, said method comprising at least: a step of depositing, on said first part, without moulding, at least one second part of said timepiece in at least one second material, and a step of treating the second material in order to connect together the components on the first part.

Composite timepiece and method for producing same

Method of manufacturing a micromechanical component intended to cooperate with another micromechanical component, the method comprising the steps of providing a substrate, forming a mould on said substrate, said mould defining sidewalls arranged to delimit said micromechanical component, providing particles on at least said sidewalls, depositing a metal in said mould so as to form said micromechanical component, and liberating said micromechanical component from said mould and removing said particles.

Methods for manufacturing micromechanical components and method for manufacturing a mould insert component

An optical sensor () for detecting a chemical species includes a substrate (), a mesoporous matrix () disposed on the substrate, and a microporous matrix () disposed within the mesoporous matrix. The microporous matrix () includes an indicator dye () dispersed therein, the indicator dye () exhibiting changes in its optical properties in response to the presence of the chemical species. This arrangement significantly increases the amount of dye present, while allowing the medium to be analyzed greater access through the porous structure, thereby increasing the performance of the sensor.

Optical sensor for detecting a chemical species

A security device for the identification or authentication of valuable goods is described, including a thin material layer () presenting a stochastic pattern including micro/submicrostructures, where the latter are arranged in blobs () each of which presents a complexity factor where L is the perimeter of the blob and A its area, and wherein blobs having a Cvalue greater than or equal to 2 cover at least 5%, preferably at least 15%, of the device surface. According to a preferred embodiment, the material layer may include a film including at least a first and a second polymers arranged respectively within a first and a second phases defining the micro/submicrostructures. Preferred processes of fabrication are also disclosed, as well as a method for securing a valuable good based on such a security device.

Unique security device for the identification or authentication of valuable goods, fabrication process and method for securing valuable goods using such a unique security device

The assembly is made up of: a) a support including a mesoporous coating whose pores have an average diameter dimensioned so as to enable molecules from the family of cyanines to penetrate them, and b) a layer of molecules from the family of cyanines and organized into J-aggregates within the pores of the coating. The assembly moreover includes Quantum Dots located within the same pores as those containing the J-aggregates, the Quantum Dots maintaining J-aggregates structure. A method for producing such an assembly is also described.

Assembly comprising J-aggregates

The present invention relates to an isotropic zero-order diffractive color filter, to a method to manufacture an embossing tool and to a method to manufacture such a filter. The zero-order diffractive color filter comprises diffractive microstructures and a wave-guiding layer, wherein the diffractive microstructures possess a short range ordering over at least four times the period of the microstructures, and the diffractive microstructures possess a long range disordering over length scales of more than 100 &#x3bc;m.

Isotropic zero-order diffractive filter

A method for producing special supramolecular assemblies of colorants, in particular cyanine dyes, called J aggregates consists in depositing a monolayer of dendrimers on a support and subsequently in deposing cyanines in solution for forming the organized monolayer of J aggregates. The method can be used for producing a secondary light source for injecting light into a waveguide from a light energy received from a primary light source emitting at different wavelength. The secondary source, which consists of the J aggregates incorporating energy acceptors, can also be integrated into an optical device incorporating the waveguide.

Method for producing J aggregates

The present invention relates to the realization of particular supramolecular assemblies of dyes, in particular cyanines, called J aggregates. The invention concerns an assembly made up of

Assembly comprising J aggregates

Growing community of inventors

Auvernier, Switzerland

Raphaël Pugin