Symbol Technologies, LLC

Henry Grossfeld

Paul Dvorkis

Howard M Shepard

Raj Bridgelall

Simon Bard

Harold Charych

Mark Dryzmala

Edward D Barkan

Chinh Tan

Miklos Stern

Ian R Jenkins

Peter Fazekas

David Tsi

Chin-Hung Jwo

Theodore Koontz

Joseph M Katz

Yajun Li

Mark William Duron

Richard T Knadle

Askold Strat

Hal Charych

Yuri Gofman

Thomas Mazz

Mark Drzymak

Timothy Healey

Costanzo Slashed diFazio

Greg Martino

Hal E Charych

Robert P Pandorf

Minh Luong Ngoc

A directional antenna array is provided that includes a driven element and a first parasitic element separated from the driven element with the first parasitic element and/or the driven element having a width that is greater than about one-half a percent (0.5%) of an free-space wavelength of the directional antenna array. Alternatively or in conjunction, the directional antenna array includes a balun structure that is configured to couple the driven element to at least one of an electromagnetic energy source and an electromagnetic sink, and the balun structure includes a dipole structure, a first feed point extending from the dipole structure and a second feed point extending from the first parasitic element.

Directional antenna array

Mirrors having different optical properties are selected to change the cross-section of a beam electro-optical reader for reading bar code symbols.

Electro-optical scan module using selectable mirrors

An optical scan module, for example for an optical scanner, includes an integrally molded plastics material member which defines not only the laser focusing lens, but also the laser focusing aperture and the collection mirror. In addition, the molded member may act to house and to locate both a semiconductor laser and a photodetector, thereby ensuring easy and accurate placement of those elements within the scanning assembly. The optical assembly may be in modular form, mounted onto a common printed circuit board with a beam scanner.

One piece optical assembly for low cost optical scanner

Electro-optical reader with hands-free and hand-held modes of operation

An integrated optical module for an optical scanner has a lens spaced from a vertical-cavity surface-emitting laser (VCSEL) by a spacer of defined dimensions. The module, in an alternative embodiment, includes a wafer frame, a suspended mirror mounted for oscillation on the frame, a wafer substrate bonded beneath the frame and a wafer cover bonded above the frame. The cover includes a mirror travel stop to protect the mirror against shocks. A VCSEL mounted to the wafer cover produces a beam which is shaped and deflected by a diffractive optical element onto the oscillating mirror. The reflected beam passes out of the module toward an indicia to be read. Large numbers of such devices may be fabricated relatively cheaply using wafer-scale processing and assembly technology. Three large wafers are fabricated corresponding respectively to arrays of substrates, frames and covers. The large wafers are bonded together in a sandwich arrangement, and are then diced to produce the individual scan modules. The modules may provide either one-dimensional or two-dimensional scanning.

Packaged mirror including mirror travel stops

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Great Neck, NY, United States of America

Henry Grossfeld