Lens system for optical reader

Details Lens system for optical reader Lens system for optical reader

1992-03-27

1993-11-30

Sugarman, Scott J.

Optical: systems and elements

Lens

With variable magnification

359682, G02B 1514

Patent

active

052670830

ABSTRACT:
First to third lenses are arranged in order to have a common optical axis. The first and second lenses provide a combined lens structure for shifting an object point along the common optical axis by moving one of the first and second lenses along the common optical axis, while an image point is formed in accordance with the shifted object point by the third lens. A spot diameter is kept constant at the image point by shifting the object point.

REFERENCES:
patent: 4526443 (1985-07-01), Hirose
patent: 4757336 (1988-07-01), Nakayama et al.
patent: 4854683 (1989-08-01), Ozawa

Affiliated with

Also associated with

Rating

Lens system for optical reader does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2101480