The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 05, 2010

Filed:

Oct. 30, 2007
Applicants:

C. Harry Knowles, Hanover, NH (US);

Xiaoxun Zhu, Marlton, NJ (US);

Timothy Good, Clementon, NJ (US);

Tao Xian, Bensalem, PA (US);

Anatoly Kotlarsky, Churchville, PA (US);

Michael Veksland, Marlton, NJ (US);

Mark Hernandez, Bridgeton, NJ (US);

John Gardner, Mullica Hill, NJ (US);

Steven Essinger, Philadelphia, PA (US);

Patrick Giordano, Blackwood, NJ (US);

Sean Kearney, Hamilton, NJ (US);

Mark Schmidt, Williamstown, NJ (US);

John A. Furlong, Woodbury, NJ (US);

Nicholas Ciarlante, Woolwich Township, NJ (US);

Yong Liu, Suzhou, CN;

Jie Ren, Suzhou, CN;

Xi Tao, Suzhou, CN;

Jibin Liu, Suzhou, CN;

Ming Zhuo, Suzhou, CN;

Duane Ellis, Medford, NJ (US);

Inventors:

C. Harry Knowles, Hanover, NH (US);

Xiaoxun Zhu, Marlton, NJ (US);

Timothy Good, Clementon, NJ (US);

Tao Xian, Bensalem, PA (US);

Anatoly Kotlarsky, Churchville, PA (US);

Michael Veksland, Marlton, NJ (US);

Mark Hernandez, Bridgeton, NJ (US);

John Gardner, Mullica Hill, NJ (US);

Steven Essinger, Philadelphia, PA (US);

Patrick Giordano, Blackwood, NJ (US);

Sean Kearney, Hamilton, NJ (US);

Mark Schmidt, Williamstown, NJ (US);

John A. Furlong, Woodbury, NJ (US);

Nicholas Ciarlante, Woolwich Township, NJ (US);

Yong Liu, Suzhou, CN;

Jie Ren, Suzhou, CN;

Xi Tao, Suzhou, CN;

JiBin Liu, Suzhou, CN;

Ming Zhuo, Suzhou, CN;

Duane Ellis, Medford, NJ (US);

Assignee:

Metrologic Instruments, Inc., Blackwood, NJ (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 7/10 (2006.01);
U.S. Cl.
CPC ...
Abstract

A laser beam generation system having an integrated coherence reduction mechanism. The system includes: a flexible circuit having a first end portion and a second end portion; a laser diode mounted on the first end portion of the flexible circuit, for producing a laser beam having a central characteristic wavelength; diode current drive circuitry for producing a diode drive current to drive the laser diode and produce said laser beam; and high frequency modulation (HFM) circuitry also mounted on the first end portion of the flexible circuit, for modulating the diode drive current at a sufficiently high frequency to cause the laser diode to produce a laser beam having a spectral side-band components about the central characteristic wavelength, and thereby reducing the coherence as well as coherence length of the laser beam.


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