Uneven-surface data detection apparatus

Details Uneven-surface data detection apparatus Uneven-surface data detection apparatus

G - Physics

06

K

354/58

G06K 9/20 (2006.01) A61B 5/117 (2006.01) G06K 9/00 (2006.01)

Patent

CA 1319433

UNEVEN SURFACE DATA DETECTION APPARATUS ABSTRACT OF THE DISCLOSURE An uneven surface data detection apparatus for detecting an uneven surface, such as a human finger, having projected portions and recessed portions. A transparent base having upper and lower surfaces and an upper surface defining an uneven surface contact portion is provided, and a light is incident on the uneven surface so that the light derived from the recess portions enters to the transparent base and comes out thereof. However, a part of the light derived from the projected portions is totally reflected at least one time by the lower opposite surface and focussing lens is integrally formed on the transparent base so that the totally reflected light is drawn out of transparent base and enters to an image sensor.

603337

Affiliated with

Also associated with

Rating

Uneven-surface data detection apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Uneven-surface data detection apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Uneven-surface data detection apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1280667