Optical sensor for plotter pen verification

Details Optical sensor for plotter pen verification Optical sensor for plotter pen verification

1991-09-20

1992-12-08

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

395103, G05B 100

Patent

active

051700476

ABSTRACT:
An optical sensor for monitoring plotter pen performance by sensing the quality of lines drawn on a medium. An LED emitting green light beam is angularly directed toward an underlying line so as to reflect into an optical sensor which measures the print contrast ratio of a point on the line. Circuit means amplifies and filters the signal generated by the optical sensor.

REFERENCES:
patent: 3609237 (1969-01-01), Gerber
patent: 3711717 (1973-01-01), Rich et al.
patent: 3845319 (1974-10-01), Walter
patent: 3859517 (1975-01-01), Okuma
patent: 4112309 (1978-09-01), Nakazawa et al.
patent: 4682040 (1987-07-01), Hohki et al.
patent: 4764669 (1988-08-01), Decker et al.
patent: 4920357 (1990-04-01), Johnson

Affiliated with

Also associated with

Rating

Optical sensor for plotter pen verification 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 sensor for plotter pen verification, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical sensor for plotter pen verification will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-962353