Symbol Technologies, LLC

Varl Gurevich

Joseph M Katz

Paul Dvorkis

Mark J Krichever

Boris Metlitsky

Miklos Stern

Daniel R McGlynn

Joseph Campanelli

A scanning device incorporates a vertical cavity surface emitting laser (VCSEL). The laser diode may be mounted directly on an Si substrate which is adapted for movement to produce a scan pattern. A collimating lens may be directly mounted on the emitting surface of the laser. A plurality of lasers may be mounted on the substrate and operated in sequence without movement of the substrate to produce the effect of a scan. The scanning device emits visible or invisible light towards a target such as a bar code and a detector (mounted on the same or an adjacent substrate) senses the light reflected by the target to produce data which is decoded for further processing. A VCSEL uses low current and emits light from a relatively large area so that a relatively large amount of light is emitted for relatively small heat generation.

Bar code readers using surface emitting laser diode

Growing community of inventors

Bohemia, NY, United States of America

Varl Gurevich