Mark M Gitin

US Patent:

7843479, Nov 30, 2010

Filed:

Oct 16, 2008

Appl. No.:

12/252474

Inventors:

Luis A. Spinelli - Sunnyvale CA, US
Mark M. Gitin - Mountain View CA, US

Assignee:

Coherent, Inc. - Santa Clara CA

International Classification:

B41J 2/435

US Classification:

347224

Abstract:

A method of printing labels includes supporting a laser sensitive material on a disc and printing label images on the disc with a modulated focused beam from a diode-laser. The label images may be printed in regions of the medium having pre-cut label boundaries. Alternatively, label boundaries may be cut through the medium using the focused laser beam. The labels are peeled from the disc after printing.

US Patent:

8391328, Mar 5, 2013

Filed:

Aug 9, 2010

Appl. No.:

12/852843

Inventors:

David Schleuning - Oakland CA, US
Mark M. Gitin - Mountain View CA, US
R. Russel Austin - La Veta CO, US

Assignee:

Coherent, Inc. - Santa Clara CA

International Classification:

H01S 3/04
H01S 5/00

US Classification:

372 5012, 372 36, 372 50121, 372 50122

Abstract:

A diode-laser bar stack includes a plurality of diode-laser bars having different temperature dependent peak-emission wavelengths. The stack is arranged such that the bars can be separately powered. This allows one or more of the bars to be “on” while others are “off”. A switching arrangement is described for selectively turning bars on or off, responsive to a signal representative of the temperature of the diode-laser bar stack, for providing a desired total emission spectrum.

US Patent:

8638831, Jan 28, 2014

Filed:

Feb 6, 2013

Appl. No.:

13/760222

Inventors:

Mark M. Gitin - Mountain View CA, US
R. Russel Austin - La Veta CO, US

Assignee:

Coherent, Inc. - Santa Clara CA

International Classification:

H01S 3/04
H01S 5/00

US Classification:

372 5012, 372 34, 372 50121, 372 50122

Abstract:

A diode-laser bar stack includes a plurality of diode-laser bars having different temperature dependent peak-emission wavelengths. The stack is arranged such that the bars can be separately powered. This allows one or more of the bars to be “on” while others are “off”. A switching arrangement is described for selectively turning bars on or off, responsive to a signal representative of the temperature of the diode-laser bar stack, for providing a desired total emission spectrum.

US Patent:

20020046995, Apr 25, 2002

Filed:

Apr 20, 2001

Appl. No.:

09/838922

Inventors:

Yong-Joon Chang - Cupertino CA, US
Edward Rea - Palo Alto CA, US
Mark Gitin - Mountain View CA, US

International Classification:

B23K026/38

US Classification:

219/121690, 219/121800

Abstract:

The present invention relates to forming microchannels with smooth bottoms and walls. In one embodiment smooth microchannels are formed by line-scanning a pulsed solid-state laser beam across a substrate such that there is a high degree of both laser pulse overlap and line overlap. In an alternative embodiment such microchannels are made by employing laser pulses whose spatial profiles have been suitably homogenized.

US Patent:

54060605, Apr 11, 1995

Filed:

May 6, 1993

Appl. No.:

8/058025

Inventors:

Mark M. Gitin - Valley Cottage NY

Assignee:

Opticon Inc. - Orangeburg NY

International Classification:

G06K 710

US Classification:

235462

Abstract:

Apparatus for illuminating a bar code at a relatively shallow (i. e. , acute) angle, and for sensing the light reflected from the surface at the shallow angle. In one embodiment the apparatus is used to illuminate the data bars at an acute angle along their length. Viewing the illuminated area at an acute angle, equal to the acute angle of incidence, increases the area being viewed and tends to spatially integrate the non-uniformity of the data bars. Apparatus embodying the invention is particularly useful for reading bar codes formed on a highly reflective surface. The shallow angle of illumination increases the contrast between the surrounding surface and the "data bars" of the bar code as it increases the effective area being viewed and enables the bar code to be read more accurately. In some embodiments a laser light spot is swept at an acute angle across a bar code and the light reflected from the bar code is viewed at the acute angle.