Optical device for sensing marks on a surface using green light

Details Optical device for sensing marks on a surface using green light Optical device for sensing marks on a surface using green light

1992-07-21

1994-03-01

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

235472, G06K 710

Patent

active

052910288

ABSTRACT:
An optical device for sensing marks carried on an area to be sensed of a medium, especially printed and/or handwritten patterns, is disclosed. Sensing of marks is accomplished by inclined illumination of the area to be sensed by a light source (3) emitting shortwave light, especially in the green spectral area, and reception of reflected light by a photoreceptor (4).

REFERENCES:
patent: 3509353 (1970-04-01), Sundblad et al.
patent: 4471384 (1984-09-01), Sato et al.
patent: 4675531 (1987-06-01), Clark et al.
patent: 4804949 (1989-02-01), Faulkerson
patent: 5142135 (1992-08-01), Farchmin

Affiliated with

Also associated with

Rating

Optical device for sensing marks on a surface using green light 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 for sensing marks on a surface using green light , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical device for sensing marks on a surface using green light will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-579892