Kenneth R Mcdaniel

US Patent:

7812280, Oct 12, 2010

Filed:

Dec 2, 2005

Appl. No.:

11/292691

Inventors:

Sergey V. Broude - Newton Center MA, US
Rong Gu - Hudson NH, US
David S. Holbrook - Lexington MA, US
Kenneth T. McDaniel - Merrimack NH, US
Pascal Miller - Groton MA, US
David L. Wall - Burlington MA, US

Assignee:

Resonetics, Inc. - Nashua NH

International Classification:

B23K 26/38

US Classification:

21912168, 2191216, 21912167, 21912175, 21912182

Abstract:

Embodiments of the present invention are directed to methods and systems for micromachining a conical surface. In one embodiment, such a system may include a rotating platform for receiving a long line of laser illumination, a mask having a predetermined pattern comprising a sector of a planar ring, the mask being positioned on the rotating platform, a workpiece stage having a rotational axis for rotating a removably-affixed workpiece comprising a conical surface, wherein the sector comprises the planar image of the conical surface, an excimer laser for producing a laser beam, a homogenizer for homogenizing the laser beam in at least a single direction, at least one condenser lens, a turning mirror and at least one projection lens.

US Patent:

20110011839, Jan 20, 2011

Filed:

Sep 21, 2010

Appl. No.:

12/924174

Inventors:

Sergey V. Broude - Newton Center MA, US
Rong Gu - Hudson NH, US
David S. Holbrook - Lexington MA, US
Kenneth T. McDaniel - Merrimack NH, US
Pascal Miller - Groton MA, US
David L. Wall - Burlington MA, US

Assignee:

Resonetics, Inc. - Nashua NH

International Classification:

B23K 26/38

US Classification:

21912168

Abstract:

Embodiments of the present invention are directed to methods and systems for micromachining a conical surface. In one embodiment, such a system may include a rotating platform for receiving a long line of laser illumination, a mask having a predetermined pattern comprising a sector of a planar ring, the mask being positioned on the rotating platform, a workpiece stage having a rotational axis for rotating a removably-affixed workpiece comprising a conical surface, wherein the sector comprises the planar image of the conical surface, an excimer laser for producing a laser beam, a homogenizer for homogenizing the laser beam in at least a single direction, at least one condenser lens, a turning mirror and at least one projection lens.

US Patent:

20150343561, Dec 3, 2015

Filed:

Aug 10, 2015

Appl. No.:

14/822048

Inventors:

- Nashua NH, US
Sergey V. Broude - Newton Center MA, US
David L. Wall - Burlington MA, US
Kenneth Todd McDaniel - Merrimack NH, US

International Classification:

B23K 26/03
B23K 26/06
B23K 26/04

Abstract:

A laser machining system for machining a work-piece includes a laser scanning head, external optical subsystems, and an image acquisition device. The external optical subsystems correspond to optical channels that include a first optical channel and a second optical channel. The laser scanning head controls an optical path so that a laser beam is directed and focused on the work-piece through the first optical channel and the second optical channel at different times. The first optical channel and the second optical channel correspond to respective specific portions of the work-piece to be machined by the laser beam. The image acquisition device is positioned to view the work-piece through the optical path. The image acquisition device acquires via the first optical channel one or more images of the work-piece to determine a displacement of the work-piece with reference to a best optical focus position of the second optical channel.