Essilor International

Agency for Science, Technology and Research

Chit Yaw Fu

Xingzhao Ding

Yu Liu

Yassine Fakhreddine

Young-Tae Chang

Malini Olivo

Dinish Unnimadhava Kurup Soudamini Amma

Seong-Wook Yun

Kaustabh Kumar Maiti

Kiat Seng Jason Soh

Disclosed is a user wearable optical article including an optical substrate and an interferential coating. The interferential coating may be disposed the substrate and may be configured to selectively reflect light of at least one range of wavelengths of an incident light in the near infrared light spectrum. A peak reflectance measured at a substantially normal to the optical article may be at least 70%. An eyewear including an optical article and a method for producing an optical article are also disclosed. The method may include providing the optical substrate and providing the interferential coating disposed on the optical substrate. The interferential coating may selectively reflect light of at least one range of wavelengths of an incident light in the near infrared light spectrum. A peak reflectance may be at least 70% and the interferential coating has a mean reflectance of less than 1.5% in a visible light range.

User wearable optical article, method for producing and eyewear using the same

A system including a sensor configured so that the presence of a spectacle within a detection range of the sensor is detectable by the sensor when the spectacle includes a predetermined identification structure. The system may further include a control unit configured to receive an information from the sensor and to carry out a predetermined action, upon a condition in which the one or more spectacle lenses may be detected. A method may include detecting the presence of the spectacle within a detection range, and further providing, by the sensor, an information to the control unit. The information may confirm the detection of the spectacle. The method may include carrying out, by the control unit, the predetermined action. A computer program product including instructions to cause the system to execute the steps of the method. A computing device including the sensor and a memory.

Systems, devices and methods using spectacle lens and frame

A compound for detecting an analyte using Surface Enhanced Raman Spectroscopy (SERS) and a method of forming the compound is provided. The compound has Formula I: wherein W is selected from the group consisting of an optionally substituted aryl group and an optionally substituted heteroaryl group; each Y independently is NRR, wherein Rand Rare independently selected from the group consisting of H and C-Calkyl, or Rand Rcombine to form together with the nitrogen to which they are attached a heterocyclic group with 4 to 5 carbon atoms,is used to denote a single or a double bond, and Z is NH, NH, NH&#x2014;(C&#x2550;O)&#x2014;(CH)&#x2014;SH, wherein n=1 to 10, or or a tautomer or stereoisomer thereof, or a salt thereof. A method and device for detecting an analyte using Surface Enhanced Raman Spectroscopy (SERS) is also provided.

Surface Enhanced Raman Spectroscopy (SERS) compounds and methods of their preparation

Growing community of inventors

Singapore, Singapore

Chit Yaw Fu