Utilizing an internal reflection surface to reflect and...

Illumination – Light source and modifier – Including translucent or transparent modifier

Reexamination Certificate

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C362S346000, C362S615000, C362S619000, C362S623000, C362S625000

Reexamination Certificate

active

07568819

ABSTRACT:
An optical navigation devices and methods that utilize an internal reflection surface to reflect and collimate sidelight from a light source are described. A light source is configured to emit light. The sidelight from the light source is reflected and collimated by an internal reflection surface towards a work surface. The light received by the sensor is used to measure movement of the optical navigation device relative to the work surface.

REFERENCES:
patent: 7018073 (2006-03-01), Koegler et al.
patent: 7310453 (2007-12-01), Ichikawa et al.
patent: 2004/0042232 (2004-03-01), Huang et al.
patent: 2005/0024623 (2005-02-01), Xie et al.
patent: 1504952 (2004-06-01), None

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