Hilti Aktiengesellschaft

Agc Glass Europe

François Boland

Thomas Lambricht

Jean-Michel Depauw

Audrey Dogimont

Yannick Sartenaer

Rolf Spangenberg

Aline Degand

Kadosa Hevesi

Michel Bogaerts

Patrick Ayoub

Benoit Domercq

Ingrid Marenne

Renaud Hubert

Tanguy Timmermans

Nicolas Fedullo

Josef Nussbaumer

Jean-Pierre Chevalier

François Bioul

A silicate-type glass sheet that includes 0.002-1.1% total iron (expressed as FeO), greater than or equal to 0.005% manganese (expressed as MnO), and optionally 0-1.3% chromium (expressed as CrO). The sum of the contents of total iron, manganese, and chromium, expressed as weight percentages are greater than or equal to 1% of the total weight of the glass. The ratios R1, defined as FeO*/(49+0.43(CrO*—MnO*)), and R2, defined as FeO*/(34+0.3(CrO*—MnO*)), both being less than 1. FeO*, MnO* and CrO* represent the relative percentages with respect to the sum of (FeO+MnO+CrO). Such a glass sheet shows a very low visible transmission together with high IR transmission in the region 1000-2000 nm, especially at wavelengths of interest between 1050 and 1550 nm, thereby valuable within the context of autonomous cars, in particular those fully integrating LiDAR systems.

Glass sheet with high near-IR transmission and very low visible transmission

A grinding wheel including a circular grinding region () with a plurality of through-openings () formed therein, a central mounting region () coaxial with the grinding region (), and a plurality of cutting bodies () having a rectangular base surface, projecting from the grinding region (), and spaced from a center of the mounting region () by different radial distances, with each cutting body () having a longitudinal side () adjacent to the center of the mounting region () and a wide side () remote from the center of the mounting region (), with the longitudinal side () and the wide side () forming together an edge (K), and with the longitudinal side () extending at an angle (B) of from 35&#xb0; to 55&#xb0; to a radial line (R) extending from the center of the mounting region () and passing tangentially to the edge (K).

Grinding wheel

Growing community of inventors

Gembloux, Belgium

François Boland