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US 5,966,230 AGranted
Integrated scanner on a common substrate
AssigneeSymbol Technologies, Inc.
InventorsJerome Swartz, Miklos Stern, Joseph Katz, Yajun Li
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.
Claims28
A light scanning device formed on a common substrate, comprising:
- a light scanner, mounted on said substrate, for scanning light across a target and including
- a light source, mounted on said substrate, for producing a light beam,
- a deflector, mounted on said substrate for deflecting said light beam across said target in a desired pattern, and
- a lens for focusing the light beam produced by the light source;
- and
- a sensor, mounted on said substrate, for detecting light reflected from said target and creating a signal representative of said detected light,
- wherein said light source is offset from an optical axis of said lens.
4 more elements
A light scanning device formed on a common substrate, comprising:
- a light scanner, mounted on said substrate, for scanning light across a target and including
- a light source, mounted on said substrate, for producing a light beam, and
- a deflector, mounted on said substrate for deflecting said light beam across said target in a desired pattern;
- and
- a sensor, mounted on said substrate, for detecting light reflected from said target and creating a signal representative of said detected light,
- wherein said deflector comprises a mirror assembly, which includes
- a frame secured to said substrate;
- a mirror mounted in a center of said sensor;
- and
- a pair of hinges connected to the frame and respective ends of said sensor for suspending the sensor above a surface of said common substrate without additional supports and for allowing said sensor and said mirror to rotatc about a rotation axis.
7 more elements
A light scanning device formed on a common substrate, comprising:
- a light scanner, mounted on said substrate, for scanning light across a target and including
- a light source, mounted on said substrate, for producing a light beam, and
- a deflector, mounted on said substrate for deflecting said light beam across said target in a desired pattern;
- and
- a sensor, mounted on said substrate, for detecting light reflected from said target and creating a signal representative of said detected light,
- wherein said deflector comprises a mirror assembly, which includes
- a frame secured to said substrate;
- a mirror;
- and
- a pair of hinges connected to the frame and respective ends of said mirror for suspending the mirror above a surface of said common substrate without additional supports and for allowing said mirror to rotate about a rotation axis.
7 more elements
A bar code reader, comprising:
- a common substrate;
- a laser diode mounted on the common substrate for emitting laser light in a direction;
- a mirror assembly on the common substrate for scanning the laser light across the bar code symbol in a desired pattern, the mirror assembly including:
- a support connected to a portion of the common substrate,
- a mirror connected to the support by at least one hinge which allows said mirror to rotate about a rotation axis thereby scanning the laser light over an angular range;
- and
- a detector for detecting light reflected from the bar code symbol and creating a signal representative of the detected light.
4 more elements
A bar code reader, comprising:
- a common substrate including a recessed portion;
- a laser diode mounted on the common substrate for emitting laser light in a direction;
- a mirror connected to the common substrate and suspended over the recessed portion by at least one hinge which allows said mirror to rotate about a rotation axis thereby scanning the laser light over an angular range;
- and
- a detector for detecting light reflected from the bar code symbol and creating a signal representative of the detected light.
2 more elements
A method of making a bar code reader on a common substrate, comprising:
- mounting a laser diode an a common substrate;
- connecting a support to the common substrate;
- connecting a mirror to the support by at least one hinge for scanning light over an angular range;
- and
- mounting a detector on the common substrate.
2 more elements
A method of using a bar code reader, comprising:
- emitting laser light from a laser diode on a common substrate;
- directing the emitted laser light toward a mirror on a portion of the common substrate;
- scanning the directed light over an angular range via movement of the mirror which is connected to a support by at least one hinge;
- and
- detecting light reflected from the bar code symbol and creating a signal representative of the detected light.
2 more elements
Dependencies are inferred from the claim text.