Signify Holding B.v.

Malgorzata Perz

Dragan Sekulovski

Michel Cornelis Josephus Marie Vissenberg

Johannes Petrus Maria Ansems

Willem Lubertus Ijzerman

Martinus Petrus Joseph Peeters

Jie Fu

Shu Xu

René Theodorus Wegh

Rémy Cyrille Broersma

Michel Cornelis Joseph Marie Vissenberg

A light emitting device () comprising a light exit surface () and at least one light source () configured to, in operation, emit light, wherein the light emitting device is configured to provide a light output at the light exit surface (), the light output comprising at least one peak intensity in a first direction (A) and an intensity cut-off in at least one second direction (B), where the intensity in the at least one second direction (B) is less than 10 % of the peak intensity in the first direction (A), and wherein the light emitting device () comprises a plurality of sparkling elements () arranged in the optical path of at least a part of the light emitted by the at least one light source (), at least two sparkling elements of the plurality of sparkling elements () being configured and arranged to be visible when observed from a viewing position corresponding to the at least one second direction (B).

Light emitting device

Disclosed is a SSL lamp that includes three or more elongated light emitting structures. A respective first end of each of the three or more elongated light emitting structures are arranged such that they define a first polygon. A portion of each of the three or more elongated light emitting structures are arranged in vicinity of each other such that the three or more elongated light emitting structures crosses each other at a smallest angle of at least 30 degrees, thereby forming a common neck.

SSL lamp that includes three or more crossed elongated light emitting structures

The invention provides a light emitting diode (LED) lighting system () comprising a string (ST) including a number of light emitting diode (LED) elements () functionally connected with an AC voltage source () configured to apply an input voltage (Vi) to said string (ST), wherein the string (ST) comprises a plurality of segments (S, S, S, . . . ), with each segment (S, S, S, . . . ) comprising at least one or more of said light emitting diode (LED) elements (), wherein the light emitting diode (LED) lighting system () is configured to connect a first segment (S) in the string (ST) between and driven by the input voltage (Vi) when said input voltage (Vi) is bigger than a first threshold, and to connect the first segment (S) and a second segment (S) in the string between and driven by the input voltage (Vi) when said input voltage (Vi) is bigger than a second threshold bigger than said first threshold, wherein each LED element () comprises a light emitting diode () configured to generate blue LED radiation (), wherein said first segment (S) comprises a second photoluminescent material comprising LED element (), wherein the second photoluminescent material comprising LED element () comprises (a) light emitting diode () and (b) a second photoluminescent material () configured to convert at least part of said LED radiation () into second conversion radiation () in the visible, and wherein said second photoluminescent material () only has a decay time of the second conversion radiation () smaller than 1 ms, and said second segment (S) comprise first photoluminescent.

AC-LED with hybrid LED channels

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Eindhoven, Netherlands

Malgorzata Perz