Sarah A Carleton

US Patent:

6833677, Dec 21, 2004

Filed:

May 8, 2001

Appl. No.:

09/850960

Inventors:

Andrew D. Jackson - Salina KS
Sarah A. Carleton - Hammondsport NY
Shiming Wu - Painted Post NY
Louis N. Kowalczyk - Alfred Station NY
Thomas Steere - Hornell NY
Jay J. Palmer - Bath NY
John C. Alderman - Corning NY
Kent L. Collins - Hammondsport NY

Assignee:

Koninklijke Philips Electronics N.V. - Eindhoven

International Classification:

H01J 1720

US Classification:

313642, 313493

Abstract:

The invention relates to a high-pressure discharge lamp of the ceramic metal halide type of the Philips MasterColor series having power ranges of about 150 W to about 1000 W. Such lamps are provided with a discharge vessel which encloses a discharge space. The discharge vessel has a ceramic wall and is closed by a ceramic plug. An electrode which is located inside the discharge space is connected to an electric conductor by way of a leadthrough element. The leadthrough element projects through the ceramic plug with a close fit and is connected thereto in a gas-tight manner by way of a sealing ceramic. The leadthrough element has a first part which is formed by a cermet at the area of the gas-tight connection. In addition, the lamps display one or more and most preferably all of the following properties: a CCT (correlated color temperature) of about 3800 to about 4500K, a CRI (color rendering index) of about 70 to about 95, a MPCD (mean perceptible color difference) of about Â10, and a luminous efficacy up to about 85-95 lumens/watt, a lumen maintenance of 80%, color temperature shift 200K from 100 hours to 8000 hours, and lifetime of about 10,000 hours to about 25,000 hours. The invention also relates to design spaces for the design and construction of high power lamps and methods for construction of such lamps using the design spaces.

US Patent:

6861805, Mar 1, 2005

Filed:

May 8, 2001

Appl. No.:

09/851443

Inventors:

Andrew D. Jackson - Salina KS, US
Sarah A. Carleton - Hammondsport NY, US
Shiming Wu - Painted Post NY, US
Louis N. Kowalczyk - Alfred Station NY, US
Thomas Steere - Hornell NY, US
Jay J. Palmer - Bath NY, US
John C. Alderman - Corning NY, US
Kent L. Collins - Hammondsport NY, US

Assignee:

Koninklijke Philips Electronics N.V. - Eindhoven

International Classification:

H01J061/06

US Classification:

313607, 313594, 315594, 315 25, 315 47

Abstract:

The invention relates to a high-pressure discharge lamp of the ceramic metal halide type of the Philips MasterColor series having a molybdenum coil wrapped around the discharge vessel and at least a portion of the electrode feed through means, and having power ranges of about 150 W to about 1000 W. Such lamps are provided with a discharge vessel which encloses a discharge space. The discharge vessel has a ceramic wall and is closed by a ceramic plug. An electrode which is located inside the discharge space is connected to an electric conductor by way of a leadthrough element. The leadthrough element projects through the ceramic plug with a close fit and is connected thereto in a gastight manner by way of a sealing ceramic. The leadthrough element has a first part which is formed by a cermet at the area of the gastight connection. In addition, the lamps display one or more and most preferably all of the following properties: a CCT (correlated color temperature) of about 3800 to about 4500K, a CRI (color rendering index) of about 70 to about 95, a MPCD (mean perceptible color difference) of about 10, and a luminous efficacy up to about 85-95 lumens/watt, a lumen maintenance of >80%, color temperature shift

US Patent:

7331837, Feb 19, 2008

Filed:

Sep 13, 2004

Appl. No.:

10/940222

Inventors:

Andrew D. Jackson - Salina KS, US
Sarah A. Carleton - Hammondsport NY, US
Shiming Wu - Painted Post NY, US
Louis N. Kowalczyk - Alfred Station NY, US
Thomas Steere - Hornell NY, US
Jay J. Palmer - Bath NY, US
John C. Alderman - Corning NY, US
Kent L. Collins - Hammondsport NY, US

Assignee:

Koninklijke Philips Electronics, N.V. - Eindhoven

International Classification:

H01J 9/32

US Classification:

445 26, 445 27

Abstract:

The invention relates to a high-pressure discharge lamp of the ceramic metal halide type of the Philips MasterColor series having a molybdenum coil wrapped around the discharge vessel and at least a portion of the electrode feed through means, and having power ranges of about 150 W to about 1000 W. Such lamps are provided with a discharge vessel which encloses a discharge space. The discharge vessel has a ceramic wall and is closed by a ceramic plug. An electrode which is located inside the discharge space is connected to an electric conductor by way of a leadthrough element. The leadthrough element projects through the ceramic plug with a close fit and is connected thereto in a gastight manner by way of a sealing ceramic. The leadthrough element has a first part which is formed by a cermet at the area of the gastight connection. In addition, the lamps display one or more and most preferably all of the following properties: a CCT (correlated color temperature) of about 3800 to about 4500K, a CRI (color rendering index) of about 70 to about 95, a MPCD (mean perceptible color difference) of about 10, and a luminous efficacy up to about 85-95 lumens/watt, a lumen maintenance of >80%, color temperature shift

US Patent:

7344427, Mar 18, 2008

Filed:

Aug 28, 2003

Appl. No.:

10/650315

Inventors:

Andrew D. Jackson - Salina KS, US
Sarah A. Carleton - Hammondsport NY, US
Shiming Wu - Painted Post NY, US
Louis N. Kowalczyk - Alfred Station NY, US
Thomas Steere - Hornell NY, US
Jay J. Palmer - Bath NY, US
John C. Alderman - Corning NY, US
Kent L. Collins - Hammondsport NY, US

Assignee:

Koninklijke Philips Electronics, N.V. - Eindhoven

International Classification:

H01J 9/32

US Classification:

445 26, 445 27

Abstract:

The invention relates to a high-pressure discharge lamp of the ceramic metal halide type of the Philips MasterColor series having power ranges of about 150 W to about 1000 W. Such lamps are provided with a discharge vessel which encloses a discharge space. The discharge vessel has a ceramic wall and is closed by a ceramic plug. An electrode which is located inside the discharge space is connected to an electric conductor by way of a leadthrough element. The leadthrough element projects through the ceramic plug with a close fit and is connected thereto in a gas-tight manner by way of a sealing ceramic. The leadthrough element has a first part which is formed by a cermet at the area of the gas-tight connection. In addition, the lamps display one or more and most preferably all of the following properties: a CCT (correlated color temperature) of about 3800 to about 4500 K, a CRI (color rendering index) of about 70 to about 95, a MPCD (mean perceptible color difference) of about 10, and a luminous efficacy up to about 85-95 lumens/watt, a lumen maintenance of >80%, color temperature shift

US Patent:

6555962, Apr 29, 2003

Filed:

Mar 17, 2000

Appl. No.:

09/527286

Inventors:

Andrew D. Jackson - Bath NY
Ray G. Gibson - Bath NY
Sarah Carleton - Hammondsport NY

Assignee:

Koninklijke Philips Electronics N.V. - Eindhoven

International Classification:

H01J 6130

US Classification:

313623, 313638, 313643

Abstract:

A metal halide lamp has a ceramic discharge vessel with an inside length L, an inside diameter D, and an aspect ratio L/D of between 3 and 5. The fill gas includes xenon, mercury, sodium halide, and halides of rare earth metals. Hydrogen iodide voltage spikes during start-up are related to product of volume and the cold xenon pressure, which are adjusted to limit the spikes. Voltage crest factor is related to the product of total operating pressure and the square of the inside diameter, which are adjusted to limit the crest factor. The ceramic discharge metal halide (CDM)lamp may have a power rating of 200 W or more and can be used with an existing ballast for a high pressure sodium (HPS) lamp of like power rating.