Registration mark detector

Details Registration mark detector Registration mark detector

1981-10-28

1984-11-20

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

226 45, G01N 2186

Patent

active

044840799

ABSTRACT:
An improved optical scanner has a light source and a focusing element to direct the light to a region of an adjacent moving web. The sensor also includes a second focusing element to focus the reflected light onto a slit having a selected orientation. Electronic elements sense the light passing through the slit and generate an output control signal.

REFERENCES:
patent: 2840721 (1958-06-01), Frommer
patent: 3033109 (1962-05-01), Frommer
patent: 3132253 (1964-05-01), Sorsen
patent: 3774014 (1973-11-01), Berler
patent: 3835297 (1974-09-01), Inoue et al.
patent: 4301363 (1981-11-01), Suzuki et al.

Affiliated with

Also associated with

Rating

Registration mark detector does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Registration mark detector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Registration mark detector will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2190815