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US 9,285,656 B2Granted
System for determining a lens position
AssigneeSensors Unlimited, Inc.
InventorsJohn T. Foster, Michael Delamere, John P. Barby
Life of this patent
Estimating the term…
Abstract
A system for determining lens position including a first capacitor plate disposed on a stationary housing of a camera. A second capacitor plate is disposed on a rotating lens component of the camera. A processor is operatively connected to the first and second capacitor plates to identify the position of the lens of the camera based on capacitance between the first and second capacitor plates.
Claims15
A system for determining lens position, comprising:
- a stationary lens barrel of a camera;
- a rotating lens component mounted for rotation relative to the lens barrel;
- a first capacitor plate disposed on the rotating lens component;
- three circumferentially spaced capacitor plates disposed on the stationary lens barrel surrounding the first capacitor plate;
- and
- a processor operatively connected to each of the capacitor plates to identify the position of the rotating lens component of the camera based on capacitance between the first capacitor plate and the stationary capacitor plates.
3 more elements
A camera, comprising:
- a stationary lens barrel;
- a lens component rotatable relative to the lens barrel;
- a first capacitor plate disposed along a circumference of the rotatable lens component;
- three circumferentially spaced capacitor plates disposed on the stationary lens barrel surrounding the first capacitor plate;
- and
- a processor operatively connected to each of the capacitor plates to identify the position of the rotatable lens component of the camera based on a capacitance between the first capacitor plate and the stationary capacitor plates.
3 more elements
Dependencies are inferred from the claim text.