Drum scanner focusing system

Details Drum scanner focusing system Drum scanner focusing system

1993-04-14

1995-04-25

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Picture signal generator

358489, 358490, 358493, 2502012, G03F 308, G01J 120

Patent

active

054104203

ABSTRACT:
A focusing system for the optical head of a rotary drum scanner establishes focus quickly and automatically by iteratively scanning a line of a document on the drum and repeatedly adjusting the focus of the head in accordance with a focus optimizing function until the region of optimal focus is found.

REFERENCES:
patent: 4272187 (1981-06-01), Birdsall et al.
patent: 4458145 (1984-07-01), Voles
patent: 4717959 (1988-01-01), Isago
patent: 4996605 (1991-02-01), Taniguchi

Affiliated with

Also associated with

Rating

Drum scanner focusing system does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1571722