×

Inclination sensor

  • US 7,526,870 B2
  • Filed: 05/15/2008
  • Issued: 05/05/2009
  • Est. Priority Date: 11/23/2005
  • Status: Active Grant
First Claim
Patent Images

1. An inclination sensor comprising:

  • a spirit level that has a liquid and a gas bubble under a cover glass in a housing;

    a light source arranged above the cover glass; and

    at least two photodetectors arranged above the cover glass for detecting light emitted by the light source, the light source and the photodectors being arranged on a chip substrate,wherein, when the gas bubble is centered, the light is substantially completely reflected at the gas bubble and the light is thereby detected by the at least two photodetectors, andwherein, when the gas bubble is off-center, different quantities of light are detected by the photodetectors.

View all claims
  • 4 Assignments
Timeline View
Assignment View
    ×
    ×