Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Karl Georg Waser
Date of Patent
October 10, 2023
Patent Application Number
17609665
Date Filed
May 19, 2020
Patent Citations
Patent Primary Examiner
Patent abstract
An apparatus includes a substrate, a light emitter mounted on the substrate, and a light receiver, including a light sensitive region, mounted on the substrate. The substrate includes one or more light blocking vias arranged to prevent at least some light produced by the light emitter from traveling through the substrate and thereby generating optical cross-talk in the light receiver.
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