150W-1000W MasterColor(R) ceramic metal halide lamp series with color temperature about 4000K, for high pressure sodium or quartz metal halide retrofit applications
The invention relates to a high-pressure discharge lamp of the ceramic metal halide type of the Philips MasterColor(R) 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...
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| creator | KOWALCZYK LOUIS N JACKSON ANDREW D COLLINS KENT L CONRAD, SR. JOHN E STEERE THOMAS WU SHIMING CARLETON SARAH A ALDERMAN JOHN C GIBSON, III RAY G PALMER JAY J |
| description | The invention relates to a high-pressure discharge lamp of the ceramic metal halide type of the Philips MasterColor(R) 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 |
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JOHN E ; STEERE THOMAS ; WU SHIMING ; CARLETON SARAH A ; ALDERMAN JOHN C ; GIBSON, III RAY G ; PALMER JAY J</creator><creatorcontrib>KOWALCZYK LOUIS N ; JACKSON ANDREW D ; COLLINS KENT L ; CONRAD, SR. JOHN E ; STEERE THOMAS ; WU SHIMING ; CARLETON SARAH A ; ALDERMAN JOHN C ; GIBSON, III RAY G ; PALMER JAY J</creatorcontrib><description>The invention relates to a high-pressure discharge lamp of the ceramic metal halide type of the Philips MasterColor(R) 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 <200 K 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.</description><language>eng</language><subject>BASIC ELECTRIC ELEMENTS ; ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS ; ELECTRICITY</subject><creationdate>2008</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20080318&DB=EPODOC&CC=US&NR=7344427B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20080318&DB=EPODOC&CC=US&NR=7344427B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KOWALCZYK LOUIS N</creatorcontrib><creatorcontrib>JACKSON ANDREW D</creatorcontrib><creatorcontrib>COLLINS KENT L</creatorcontrib><creatorcontrib>CONRAD, SR. 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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 <200 K 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.</description><subject>BASIC ELECTRIC ELEMENTS</subject><subject>ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS</subject><subject>ELECTRICITY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2008</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNjMFqwlAQRbPpQmz_YZYVGkg0JXtDpVC6sRWXMr5MzMB7ec-ZCQW_xw81QjfddXXhnsOZZdfytdjnZVEUe_hENZIm-ijP2wU4EgzsIJChhx49twQeQwIlYVL4YevB3XUwCmnSbRQCPMbRoJqSHy_QTbDnUw9JSPWONbY8Bpj-84hil799IZPYsQGm5NmhcRz0MXvo0Cs9_e48g83bd_OeU4oH0oSOBrLD7qteVVW1rNfL1T-UG6LlVAY</recordid><startdate>20080318</startdate><enddate>20080318</enddate><creator>KOWALCZYK LOUIS N</creator><creator>JACKSON ANDREW D</creator><creator>COLLINS KENT L</creator><creator>CONRAD, SR. 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JOHN E</au><au>STEERE THOMAS</au><au>WU SHIMING</au><au>CARLETON SARAH A</au><au>ALDERMAN JOHN C</au><au>GIBSON, III RAY G</au><au>PALMER JAY J</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>150W-1000W MasterColor(R) ceramic metal halide lamp series with color temperature about 4000K, for high pressure sodium or quartz metal halide retrofit applications</title><date>2008-03-18</date><risdate>2008</risdate><abstract>The invention relates to a high-pressure discharge lamp of the ceramic metal halide type of the Philips MasterColor(R) 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 <200 K 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.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BASIC ELECTRIC ELEMENTS ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS ELECTRICITY |
| title | 150W-1000W MasterColor(R) ceramic metal halide lamp series with color temperature about 4000K, for high pressure sodium or quartz metal halide retrofit applications |
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