Optical navigation devices
AssigneeSTMicroelectronics (Research & Development) Limited
InventorMathieu REIGNEAU
Life of this patent
Estimating the term…
Abstract
An imaging device may have an imaging surface and a sensor. The imaging surface may be illuminated by a first source and reflect at least some of the illumination to the sensor to detect an image. The imaging device may have a predetermined width and an optical path passing therethrough. The imaging device may be illuminated by a second source, and the illumination of the second source may be directed to one or more predetermined regions on or near the imaging surface to produce an optical effect associated with the imaging surface.
Claims28
1-20. (canceled)
An imaging device comprising:
- an optical element having an imaging surface and at least one region adjacent said imaging surface;
- a first light source configured to illuminate said imaging surface;
- a sensor configured to detect reflected illumination from said imaging surface to detect an image;
- and
- a second light source configured to illuminate said at least one region to produce an optical effect associated with said imaging surface.
An electronic device comprising:
- an imaging device comprising
- an optical element having an imaging surface and at least one region adjacent said imaging surface,
- a first light source configured to illuminate said imaging surface,
- a sensor configured to detect reflected illumination from said imaging surface to detect an image, and
- a second light source configured to illuminate said at least one region to produce an optical effect associated with said imaging surface.
A method of making an imaging device comprising:
- forming an optical element having an imaging surface and at least one region adjacent the imaging surface;
- positioning a first light source to illuminate the imaging surface;
- positioning a sensor to detect reflected illumination from the imaging surface to detect an image;
- and
- positioning a second light source to illuminate the at least one region to produce an optical effect associated with the imaging surface.
Dependencies are inferred from the claim text.