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Ulrich Roll

Massachusetts Institute of Technology

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Publication

Featured researches published by Ulrich Roll.

Archive | 1992

Transformerless fluorescent lamp operating circuit, particularly for a compact fluorescent lamp, with phase-shifted inverter control

Ulrich Roll; Werner Bernhard; Ludwig Reiser

Archive | 2011

REFLECTOR ELEMENT FOR AN ELECTRIC LAMP AND LAMP WITH SUCH A REFLECTOR ELEMENT

Achim Hilscher; Andreas Hollstein; Armin Konrad; Thomas Noll; Juergen Reichardt; Ulrich Roll; Josef Schlecht

Archive | 2011

Lamp i.e. gas discharge lamp, has electric contacts formed as sliding contacts at respective outer and inner control units of side wall of cabinet of electronic operation apparatus, where sliding contacts are arranged one above other

Josef Schlecht; Ulrich Roll; Jürgen Reichardt; Thomas Noll; Armin Konrad; Andreas Hollstein; Achim Hilscher

Archive | 2011

Lamp comprising at least one light source and an electronic operating device

Josef Schlecht; Ulrich Roll; Juergen Reichardt; Thomas Noll; Armin Konrad; Andreas Hollstein; Achim Hilscher

Archive | 1995

Circuit for operating one or more low pressure discharge lamps

Ulrich Roll; Ludwig Reiser

Archive | 2011

Reflector element for an electric lamp and lamp with same

Armin Konrad; Thomas Noll; Josef Schlecht; Jürgen Reichardt; Achim Hilscher; Andreas Hollstein; Ulrich Roll

Archive | 2011

Reflektorelement für eine elektrische Lampe sowie Lampe mit einem derartigen Reflektorelement

Armin Konrad; Thomas Noll; Josef Schlecht; Jürgen Reichardt; Achim Hilscher; Andreas Hollstein; Ulrich Roll

Archive | 2011

Lampe mit zumindest einer lichtquelle und einem elektronischen betriebsgerät

Josef Schlecht; Ulrich Roll; Jürgen Reichardt; Thomas Noll; Armin Konrad; Andreas Hollstein; Achim Hilscher

Archive | 2009

SUBSTRUCTURE FOR AN ELECTRIC LAMP

Ulrich Hartmann; Thomas Noll; Juergen Reichardt; Ludwig Reiser; Ulrich Roll

Archive | 1994

Schaltungsanordnung zum Betrieb einer oder mehrerer Niederdruckentladungslampen Circuit arrangement for operating one or more low-pressure discharge lamps

Ulrich Roll; Ludwig Reiser

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Collaboration

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Achim Hilscher

Massachusetts Institute of Technology

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Andreas Hollstein

Massachusetts Institute of Technology

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Josef Schlecht

Massachusetts Institute of Technology

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Ludwig Reiser

Massachusetts Institute of Technology

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Jürgen Reichardt

Massachusetts Institute of Technology

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Thomas Noll

Massachusetts Institute of Technology

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Armin Konrad

Osram

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Juergen Reichardt

Massachusetts Institute of Technology

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Armin Konrad

Osram

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Thomas Noll

Massachusetts Institute of Technology

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