Jeffrey M Knox

US Patent:

6501500, Dec 31, 2002

Filed:

Sep 21, 1998

Appl. No.:

09/157850

Inventors:

Robert D. Olenio - North Andover MA
John F. Nolan - Haverhill MA
Jeffrey Knox - Lynnfield MA

Assignee:

AGFA Corporation - Wilmington MA

International Classification:

B41J 2435

US Classification:

347263

Abstract:

A hose and cable routing system for routing and flexing a coolant supply hose, a coolant return hose, and an electrical cable to a laser system mounted on a movable optical carriage in an imaging system without introducing mechanical disturbances to the optical carriage. The hose and cable routing system includes a support tray, mounted to the imaging system, for supporting the coolant hoses and electrical cable, and a movable support bracket for supporting and running the coolant hoses and electrical cable from the support tray to the optical carriage. A track is provided to guide the movable support bracket along the imaging system in response to a displacement of the optical carriage. A vibration isolator is mounted between the support bracket and the optical carriage. Other embodiments of the hose and cable routing system are also disclosed.

US Patent:

6882457, Apr 19, 2005

Filed:

Aug 27, 2003

Appl. No.:

10/650068

Inventors:

Bryan Comeau - Atkinson NH, US
Philip A. Rombult - Boxford MA, US
Jeffrey Knox - Lynnfield MA, US

Assignee:

Agfa Corporation - Wilmington MA

International Classification:

G02B026/00

US Classification:

359239, 359237

Abstract:

A modulation quality detection system is disclosed for determining the modulation quality of an illumination modulator in an imaging system. The modulation quality detection system includes a modulator adjustment unit for providing a test pattern on the illumination modulator, a detector for receiving a modulated illumination field from the illumination modulator, a sampling unit for determining at least three sample values (A, B and C) for each of three areas of the modulated illumination field respectively, and an evaluation unit for determining whether the value is greater than a threshold value.

US Patent:

7079233, Jul 18, 2006

Filed:

Aug 27, 2003

Appl. No.:

10/649530

Inventors:

Bryan Comeau - Atkinson NH, US
Philip A. Rombult - Boxford MA, US
Jeffrey Knox - Lynnfield MA, US

International Classification:

G01B 11/26
G02B 26/00

US Classification:

35613904, 356400, 359237

Abstract:

An alignment detection system is disclosed for determining whether a modulated illumination field in an imaging system employing an illumination modulator is mis-aligned. The alignment detection system includes a modulator adjustment unit for providing a test pattern on the illumination modulator, a detector for receiving a modulated illumination field from the illumination modulator, a sampling unit for determining at least two sample values (A and C) for each of two areas of the modulated illumination field respectively, and an evaluation unit for determining whether the value |A−C| is greater than a threshold value.

US Patent:

20040252179, Dec 16, 2004

Filed:

Jun 11, 2003

Appl. No.:

10/459348

Inventors:

Leonard Kraicer - Chelmsford MA, US
Jeffrey Knox - Lynnfield MA, US

International Classification:

B41J002/47
H01J003/14
H01J001/56

US Classification:

347/239000, 250/229000, 250/23700R, 347/255000

Abstract:

A method and apparatus for reducing contamination on the protective lids of a grating light valve (GLV) and a calibration sensor in an imaging system. A shroud surrounds the protective lid of the GLV/sensor. An airflow system inputs a stream of air into the shroud, and the shroud directs the stream of air away from the GLV/sensor. A pellicle may also be used to enclose the GLV/sensor to prevent contamination of the protective lid.

US Patent:

20040263940, Dec 30, 2004

Filed:

Jun 27, 2003

Appl. No.:

10/609306

Inventors:

Bryan Comeau - Atkinson MH, US
Philip Rombult - Boxford MA, US
Jeffrey Knox - Lynnfield MA, US

International Classification:

G02F001/01
G02B026/00

US Classification:

359/239000

Abstract:

An illumination modulator correction system is disclosed for adjusting the operational parameters of an illumination modulator in an imaging system. The correction system includes a modulator pattern unit for providing a test pattern on the illumination modulator, a modulator adjustment unit for permitting an actuation voltage on the illumination modulator to be changed through a range of actuation voltage values, a detector for receiving a modulated illumination field from the illumination modulator, a sampling unit for determining at least one sample value for at least one area of the modulated illumination field, and an evaluation unit for determining a minimum sample value within the range of actuation voltage values of the illumination modulator.

US Patent:

59697423, Oct 19, 1999

Filed:

Mar 27, 1998

Appl. No.:

9/049773

Inventors:

Jeffrey Knox - Peabody MA
Larry S. Blake - Peabody MA
Arthur R. Newton - North Reading MA

Assignee:

AGFA Corporation - Wilmington MA

International Classification:

B41J 2385

US Classification:

347139

Abstract:

A media guidance system for substantially reducing media jamming as the leading (head) end of a web of recording media is directed over the drum surface of an internal drum type laser imagesetter during a media loading procedure. The media guidance system includes a hollow shield, at least one outrigger extending laterally away from the hollow shield, and at least one retractable plate assembly for selectively applying a pressure load against the leading end of the recording media as it approaches the exit aperture of the internal drum.

US Patent:

6052216, Apr 18, 2000

Filed:

Jan 29, 1999

Appl. No.:

9/240983

Inventors:

Norman F. Rolfe - Carlisle MA
Steven E. Mason - North Andover MA
Jeffrey Knox - Lynnfield MA
Arkady B. Chernin - Marblehead MA

Assignee:

Agfa Corporation - Wilmington MA

International Classification:

G02F 111
G02F 133
G02B 2600

US Classification:

359285

Abstract:

A laser beam intensity modulation system has a variable delay circuit that is used to control the relative delay in the delivery of a video signal between two cascaded AOM's. This delay circuit is controlled by a delay controller that monitors the intensity modulation of the laser beam to provide feedback control. This system maximizes the rise and fall times of the beam to generate precise beam modulation required for high speed image setters.

US Patent:

58671994, Feb 2, 1999

Filed:

Mar 28, 1995

Appl. No.:

8/412042

Inventors:

Jeffrey Knox - Peabody MA
Larry S. Blake - Peabody MA
Arthur R. Newton - North Reading MA

Assignee:

Agfa Division, Bayer Corporation - Wilmington MA

International Classification:

B41J 2385
B41J 2435
G01D 1534
G03G 1304

US Classification:

347139

Abstract:

A media guidance system for substantially reducing media jamming as the leading (head) end of a web of recording media is directed over the drum surface of an internal drum type laser imagesetter during a media loading procedure. The media guidance system includes a hollow shield, at least one outrigger extending laterally away from the hollow shield, and at least one retractable plate assembly for selectively applying a pressure load against the leading end of the recording media as it approaches the exit aperture of the internal drum.