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US 6,186,399 B1Granted
Scanner and mirror with shape memory alloy hinges
AssigneeSymbol Technologies, Inc.
InventorsMiklos Stern, Curtis Ray
Life of this patent
Estimating the term…
Abstract
An integrated scanner for scanning a barcode is formed on a common substrate. The scanner may include a micro-machined mirror, a laser diode, and a detector, mounted on a single substrate or several connected substrates. Lenses can be used to focus a laser beam from the laser diode as well as expand a laser beam deflected by the micro-machined mirror. The scanner may also scan a barcode without using a micro-machined mirror by rotating the laser diode.
Claims11
A bar code reader comprising:
- a substrate including a flat surface portion and a recessed area disposed within the flat portion;
- a light source;
- a detector;
- and
- a scanner module mounted to said substate, said scanner comprising:
- an oscillatable scanner element;
- a mounting frame, the scanner element being mounted for torsional oscillation with respect to the mounting frame by first and second hinges extending between the scanner element and the mounting frame, said mounting frame being attached to said flat surface portion of the substate such that said oscillatable scanner element is suspended directly above said recessed area;
- and
- conductive pads on the frame for permitting electrical connection between the module and the substrate.
6 more elements
A bar code scanning subassembly comprising:
- a substrate including a flat surface portion and a recessed area disposed within the flat portion;
- a light source for generating a light beam;
- a scanner module having conductive pads and including a reflector for reflecting the light beam in a scanning pattern, said scanner module being mounted on the flat surface portion of said substrate such that said reflector is suspended directly above the recessed area;
- and
- a drive for supplying an electrical signal to said scanner module to cause said reflector to move to produce a scanning pattern.
2 more elements
Dependencies are inferred from the claim text.