Compact bar code scanning module with shock protection

Details Compact bar code scanning module with shock protection Compact bar code scanning module with shock protection

1994-10-20

1996-12-03

Hajec, Donald T.

Registers

Coded record sensors

Particular sensor structure

235472, G06K 710

Patent

active

055810675

ABSTRACT:
A scanner module for use in a bar code reader has a scanning mirror which is mounted to a bracket by way of leaf-spring, allowing the mirror to oscillate in one direction. The bracket is hung from a stationary chassis by means of two strips of mylar film, allowing the entire bracket to oscillate in the perpendicular direction, thereby providing two dimensional oscillation of the mirror and raster scanning of a light beam reflected from the mirror. The mylar sheets are protected against mechanical shock by pins which pass through holes in the bracket. The pins are slightly smaller than the holes, allowing sufficient clearance for movement of the bracket during normal operation, but preventing too much stress being placed upon the mylar films if the module is dropped. The pins also provide accurate alignment of the bracket with respect to the chassis.

REFERENCES:
patent: 4845350 (1989-07-01), Shepard
patent: 5198651 (1993-03-01), Barkan
patent: 5206492 (1993-04-01), Shepard
patent: 5247384 (1993-09-01), Inoue
patent: 5262627 (1993-11-01), Shepard
patent: 5298729 (1994-03-01), Wike, Jr.
"A Precision Two-Coordinate One-Mirror Scanning Device" by V. L. Mamaev & B. S. Rosov translated from Pribory i Tekhnika Eksperimenta, No. 1, pp. 227-229 Jan.-Feb. 1976.

Affiliated with

Also associated with

Rating

Compact bar code scanning module with shock protection does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Compact bar code scanning module with shock protection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compact bar code scanning module with shock protection will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-787184