Optical device that measures distance between the device and...

Details Optical device that measures distance between the device and... Optical device that measures distance between the device and...

2004-04-15

2008-09-23

Lewis, David L (Department: 2629)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Cursor mark position control device

C345S156000, C345S163000

Reexamination Certificate

active

07427981

ABSTRACT:
An optical device and methods thereof are described. The device includes a first light source adapted to emit light onto a surface, and a detector adapted to receive light reflected from the surface. The reflected light produces a speckle pattern. The distance between the optical device and the surface can be measured using a quantifiable attribute associated with the speckle pattern.

REFERENCES:
patent: 6188482 (2001-02-01), Cloud
patent: 6657184 (2003-12-01), Anderson et al.
patent: 6934037 (2005-08-01), DePue et al.
patent: 7116427 (2006-10-01), Baney et al.
patent: 7161582 (2007-01-01), Bathiche et al.
patent: 2005/0024624 (2005-02-01), Gruhike et al.
patent: 2005/0035947 (2005-02-01), Lutian
patent: 2005/0073693 (2005-04-01), DePue et al.
patent: 2005/0190157 (2005-09-01), Oliver et al.
patent: 2005/0231482 (2005-10-01), Theytaz et al.
patent: 0 024 167 (1980-08-01), None

Affiliated with

Also associated with

Rating

Optical device that measures distance between the device and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical device that measures distance between the device and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical device that measures distance between the device and... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3967288