Optical pen having a light path coaxial with its pen tip

Details Optical pen having a light path coaxial with its pen tip Optical pen having a light path coaxial with its pen tip

2007-09-25

2007-09-25

Paik, Steven S. (Department: 2876)

Registers

Coded record sensors

Particular sensor structure

C235S472010, C235S472030

Reexamination Certificate

active

11088717

ABSTRACT:
An optical pen comprising a shaft, a pen tip, a light source and an optical sensor. The shaft extends a predetermined length along an axial direction. The pen tip is arranged at one end of the shaft and situated in the same axial direction. The light source produces light that illuminates an outlying surface near the pen tip to generate a reflected imaging light traveling along a light path. The light path has at least a portion near the pen tip overlapping with said axial direction. The optical sensor is disposed in the light path to receive the imaging light and convert it into electrical signals. In light that the light path that captures imaging light from the optical pen is coaxial with the pen tip, when the optical pen is used for writing, the traveling speed, direction, and distance of images captured by the optical sensor are identical to those of the pen tip.

REFERENCES:
patent: 6729547 (2004-05-01), Charlier et al.
patent: 2002/0074403 (2002-06-01), Krichever et al.
patent: 2005/0156915 (2005-07-01), Fisher
patent: 2005/0167507 (2005-08-01), Swartz et al.
patent: 2006/0028456 (2006-02-01), Kang
patent: 2004164142 (2004-06-01), None

Affiliated with

Also associated with

Rating

Optical pen having a light path coaxial with its pen tip 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 pen having a light path coaxial with its pen tip, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical pen having a light path coaxial with its pen tip will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3762291