05780834 is referenced by 271 patents and cites 7 patents.

A low profile optical unit for use in a 2D bar code reader. A vertically disposed light redirecting panel having contoured reflective openings therein is mounted in the front of the unit and an LED behind the panel. Light emitting diodes for illuminating a target are mounted on the LED board behind the contour openings whereby direct light and reflected light illuminates a target. An imager housing is mounted on the back of the LED board and contains a recess that passes through the back of the housing and a lens barrel that extends forward through holes provided in the LED board and the light redirecting panel. An imager board is secured to the back of the housing which holds a 2D imager that is contained within the housing recess. Circuitry for generating image data signals is mounted on the back of the imager board. A lens holder is threadably mounted in the lens barrel which contains a lens system having a short back focal length for focusing a target image on the imager.

Title
Imaging and illumination optics assembly
Application Number
441037
Publication Number
5780834
Application Date
May 14, 1996
Publication Date
July 14, 1998
Inventor
Thomas W Karpen
Skaneateles
NY, US
Tanya A Onori
Auburn
NY, US
Robert J Wood Sr
Syracuse
NY, US
Robert C Hinkley
Skaneateles
NY, US
Robert J Hennick
Auburn
NY, US
Charles M Hammond Jr
Skaneateles
NY, US
William H Havens
Skaneateles
NY, US
Agent
Wall Marjama & Billinski
Assignee
Welch Allyn
NY, US
IPC
G06K 7/10
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