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Optoelectric measuring device for monitoring combustion processes

  • US 6,320,184 B1
  • Filed: 07/09/1999
  • Issued: 11/20/2001
  • Est. Priority Date: 07/09/1998
  • Status: Expired due to Fees
First Claim
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1. Optoelectronic measuring device for monitoring combustion processes in a combustion chamber of an internal combustion engine during operation, with optical sensors being assigned to said combustion chamber each defining a point of entrance, which optical sensors are connected to an evaluation unit, each of said sensors being provided with a lens assembly at said point of entrance into said combustion chamber, which lens assembly is in optical contact with at least one optical fiber and includes a plano-convex lens as focusing lens, and an end of at least one optical fiber being positioned in a focal plane of said focusing lens, wherein said focal plane of said focusing lens coincides with a plane face of said plano-convex lens, and said end of said at least one optical fiber is in direct contact with said plane face.

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