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US 6,648,227 B2Granted
Scanning module for a bar code reader with a focusing lens
AssigneeSymbol Technologies, Inc.
InventorsJerome Swartz, Miklos Stern, Joseph Katz, Yajun Li
Life of this patent
Estimating the term…
Abstract
An optical scanning module for use in a bar code reader, including a frame, including a base and a vertical support; a scanning element mounted to the base and including a mirror disposed in the path of an unfocussed laser beam and mounted for oscillatory motion so as to create a scanning laser beam; and a focusing lens, mounted to the vertical support and in the path of the scanning laser beam, for focusing the beam on a target exterior to the module.
Claims9
A scan module for scanning indicia to be electro-optically read, the module comprising:
- a) a substrate having a generally planar substrate portion lying in a substrate plane, and a raised substrate portion elevated above the substrate plane;
- b) a scan element mounted on the raised substrate portion, and including an oscillatable scan mirror lying in a mirror plane inclined relative to the substrate plane;
- c) a light source integrated with the substrate and the scan element, and operative for emitting a light beam in a direction parallel to the substrate plane to the scan mirror for reflection therefrom away from the substrate as an unfocused scanning beam;
- and
- d) a focusing lens integrally connected to the substrate in juxtaposition with the scan mirror, and operative for focusing the unfocused scanning beam to enable the indicia to be scanned with a focused scanning beam.
2 more elements
Dependencies are inferred from the claim text.