Patent · US Active

Optical finger navigation device

US9619047B2 · kind B2 · utility

0Cited by

3References

13Claims

0Family size

Assignee

PIXART IMAGING INC. · TW

Inventors

Chee Foo Lum · Bukit Mertajam, MY
Sai Mun Lee · Kampung Bukit Kechil, MY
Khoon Guan Tee · Batu Kawan, MY
Hun Kwang Lee · Bukit Gambir, MY

Key dates

Filing date	Oct 26, 2010
Grant date	Apr 11, 2017
Priority date	—
Expiry date	Nov 14, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG06F3/0317
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

An optical finger navigation (OFN) device for use in handheld portable devices is presented. The OFN device may include a light source, a sensor, a lens holder integrated with a light guide system and a molded lead frame. The lens holder may include a lens receiving region for receiving the lens, a light guide system for directing light emitted by the light source towards the navigation surface. The light guide system may include a slanted wall that may be coated with a light reflective material.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.