Koninklijke Philips Corporation N.v.

Signify Holding B.v.

U.S. Philips Corporation

Philips Lighting Holding B.v.

Lumileds LLC

Tp Vision Holding B.v.

Lumileds Holding B.v.

Adrea, LLC

Philips Intellectual Property & Standards Gmbh

Hugo Johan Cornelissen

Dirk Jan Broer

Willem Lubertus Ijzerman

Olexandr Valentynovych Vdovin

Ties Van Bommel

Marcellinus Petrus Carolus Michael Krijn

Norbertus Antonius Maria Sweegers

Rifat Ata Mustafa Hikmet

Hendrik Johannes Boudewijn Jagt

Mark Thomas Johnson

Martinus Hermanus Wilhelmus Maria Van Delden

Marc Andre De Samber

Giovanni Cennini

Michel Cornelis Josephus Marie Vissenberg

Cornelis Reinder Ronda

Bart Andre Salters

Floris Maria Hermansz Crompvoets

Dirk Kornelis Gerhardus De Boer

Ludovicus Johannes Lambertus Haenen

Peter Alexander Duine

Hendrikus Hubertus Petrus Gommans

Jianghong Yu

Tim Dekker

Christoph Gerard August Hoelen

Ramon Pascal Van Gorkom

Joris Jan Vrehen

Horst Greiner

Elvira Johanna Maria Paulussen

Eliav Itzhak Haskal

Robert Van Asselt

Alexander Victor Henzen

Cees C Bastiaansen

Gerardus Petrus Karman

Rabin Bhattacharya

Yadong Liu

Maarten Van Lierop

Xiaoyan Zhu

Maarten Marinus Johannes Wilhelmus Van Herpen

Gerard E Van Rosmalen

Bo Tong Liu

Jochen Renaat Van Gheluwe

Paul Van Der Sluis

Fetze Pijlman

Gerardus A Vrijssen

Dominique Maria Bruls

Pieter Jacob Snijder

Erno Hermanus Antonius Langendijk

Liesbeth Van Pieterson

Peter Van De Witte

Georges Marie Calon

Koen Van Os

Daniël Anton Benoy

Anna-Maria Janner

Gongming Wei

Winfried Antonius Henricus Berkvens

Ronaldus Maria Aarts

Johannes Petrus Maria Ansems

Siebe Tjerk De Zwart

Achim Hilgers

Reinhold Elferich

Johannes Wilhelmus Weekamp

Alan G Knapp

Menno Willem Jose Prins

Martin Jacobus Johan Jak

Martinus Petrus Joseph Peeters

Reinhold Wimberger-Friedl

Coen Adrianus Verschuren

Roelant Boudewijn Hietbrink

Rene Theodorus Wegh

Oscar Hendrikus Willemsen

Johan Paul Marie Gerard Linnartz

Emiel Peeters

Martin Ouwerkerk

Johan-Paul Marie Gerard Linnartz

Antonius Adrianus Maria Marinus

Theodorus Johannes Petrus Van Den Biggelaar

Michiel Adriaanszoon Klompenhouwer

John A Clarke

Cornelis Van Berkel

Heidrun Steinhauser

Johannes Marra

Varun Dev Kakkar

Gerben Johan Hekstra

Jorrit Ernst De Vries

Jacobus Petrus Johannes Van Os

Leo Jan Velthoven

Marcellus Jacobus Johannes Van Der Lubbe

Tiemen Poorter

Barry Mos

Marcellinus P C M Krijn

Johannes Johanna Van Herk

Jacobus Gerardus Boerekamp

Henri Marie Joseph Boots

Jan Cornelis Kriege

Marten Sikkens

Rick Gerhardus Nijkamp

Bo Liu

Theodorus Franciscus Emilius Maria Overes

Marinus Josephus Jakobus Dona

The invention concerns an optical detector () with a low-cost and efficient solution for the imaging lens in the receiver that is configured to better receive optical signals originating from wide viewing angles. The optical detector () comprises a ball lens (), a photodetector (), and a plurality of lightguides (). The ball lens () comprising a first spherical surface () for receiving incoming light and a second spherical surface () for exiting incoming light. Each of the plurality of lightguides () has a light entry surface () and a light exit surface (). The plurality of light entry surfaces () are facing the second spherical surface () of the ball lens () and the plurality of light exit surfaces () are facing the photodetector (). The photodetector () and the plurality of lightguides () are arranged around an optical axis () of the ball lens ().

Optical detector

The invention provides a light generating system () comprising: (i) a first set () comprising n1 first light generating devices (), (ii) a first optical element (), and (iii) a luminescent body (), wherein: —the n1 first light generating devices () are configured to generate first device light (); wherein the n1 first light generating devices () may be selected from the group of lasers and superluminescent diodes; —the first set () comprises k1 first subsets () of each at least one first light generating device () of the n1 first light generating devices (), wherein n1≥3, especially n1≥5, and 2≤k1≤n1; —the luminescent body () is configured to: (i) convert part of the first device light () into luminescent material light (), and (ii) transmit part of the first device light (); —the n1 first light generating devices () and the first optical element () are configured to provide first beams () of first device light () to the luminescent body (), wherein two or more first beams () of two or more first light generating devices () of the k1 first subsets () have different first angles of incidence (α) relative to a normal to the luminescent body (); and—in an operational mode of the light generating system () a first intensity of the first device light () of the k1 first subsets () is dependent upon the first angles of incidence (α).

High intensity white light source with good uniformity based on a plurality of light sources

The invention provides light generating system () comprising a first light generating device (), a luminescent body (), one or more thermally conductive bodies (), and one or more optical elements (); wherein: (A) the first light generating device () is configured to generate first device light (), wherein the first light generating device () comprises a first light source () selected from the group of a superluminescent diode and a laser; (B) the luminescent body () comprises a luminescent material () configured to convert at least part of the first device light () into luminescent material light (); wherein the luminescent body () comprises a first face (), a second face (), and a bridging face () bridging the first face () and the second face (); wherein the second face () has an second face equivalent circular diameter D2, wherein the bridging face () In has a first height (H1), wherein H1/D2<1, and a perimeter (P); (C) the one or more thermally conductive bodies () comprise: (C1) a first thermally conductive body part (), in thermal contact with at least part of the first face (); and (C2) a second thermally conductive body part (), in thermal contact with one or more of (i) part of the bridging face () and (ii) part of the second face (); (D) the first thermally conductive body part () and the second thermally conductive body part () define a slit-like opening () along at least part of the perimeter (P) of the bridging face (); and (E) the first light generating device () and the one or more optical elements () are configured to provide the first device light () via the slit-like opening () to the luminescent body ().

Heatsink comprising a closed-logo slit for pumping a cylindrical phosphor body

The invention provides a light generating system () comprising a lighting unit (), a luminescent element (), an optical element (), and a reflective element (), wherein: (a) the lighting unit () is configured to generate a beam () of unit light (); (b) the luminescent element () comprises a luminescent material () configured to convert at least part of the unit light () into luminescent material light (); wherein the luminescent element () comprises a first luminescent element face () and a second luminescent element face (), wherein at least part of the luminescent material () is configured between the first luminescent element face () and the second luminescent element face (); (c) the optical element () comprises an external surface (), wherein the optical element () is configured between the luminescent element () andthe reflective element (), wherein a first part () of the external surface () is directed to the second luminescent face (), wherein a second part () of the external surface () is directed to the reflective element (), and wherein a third part () of the externa surface () is configured in a light receiving relationship with the lighting unit (); wherein a first area Aof the first part () is smaller than a second area Aof the second part (), wherein the optical element () is transmissive for the unit light (); (d) the reflective element () is configured to reflect unit light (); and (e) the lighting unit () is configured such that in an operational mode the lighting unit () is configured to irradiate the first element face () via transmission through the optical element () and reflection at the reflective element ().

Laser SMD package with phosphor and light incoupler

The invention provides a lighting system (), wherein the lighting system () comprises np system sections (), wherein n≥2, wherein each system section () comprises a light source array section (), a collimator section (), and a Koehler integrator section (), wherein: for each of the system sections () applies: the light source array section () comprises a plurality of section light sources () configured to provide light source light (); the Koehler integrator section () comprises a section entrance face () and a section exit face (), wherein the section entrance face comprises a plurality of section entrance lenslets () shaped according to an section entrance surface pattern (), and wherein the section exit face () comprises a plurality of section exit lenslets () shaped according to a section exit surface pattern (), and wherein the section entrance face () is configured in a light receiving relationship with the plurality of section light sources () via the collimator section (); each of the plurality of section light sources () have a light emitting surface (), wherein the light emitting surface () has a first axis of elongation Aand an aspect ratio RS, wherein RS>1; each first axis of elongation Ahas an angle αAto an averaged first direction of the axes of elongation A, wherein α≤5°; the section entrance surface pattern () comprises a section entrance tessellation () of an entrance lenslet shape, wherein the entrance lenslet shape has a rotational symmetry of order nA, wherein n≥2, wherein the entrance lenslet shape has an entrance aspect ratio Rand wherein R≤RS; the section exit surface pattern () comprises a section exit tessellation () of an exit lenslet shape, wherein the exit lenslet shape approximates the light emitting surface (), wherein the exit lenslet shape has an exit aspect ratio R, wherein Ris selected from the range of 0.8*RS−1.2*RS; and at least two system sections () of the system sections () are rotated relative to another for 360°/n/k+(360/n)*n, wherein m is anon-negative integer, and wherein k is selected from the range of 2-12.

Lighting system

The present invention generally relates to the field of lighting devices, and in particular to a lighting device that is suitable for providing disinfection of an area and/or surrounding environment. The lighting device () according to the present invention comprises a light source (), a first reflector (), and a second reflector (). The light source () is configured to provide, in operation a light output (). The first reflector () comprising a first reflective surface (), and the second reflector () comprising a second reflective surface (). The first reflective surface () is configured face the second reflective surface (). The light source () is configured to emit the light output () towards the second reflective surface (). The second reflective surface () comprises a plurality of sections (), each section () comprising a first section surface () that faces away from a center axis () of the light source () and a second section surface () that faces towards the center axis (). The first section surface () comprises a light reflective surface.

Dual-reflector lighting device

The invention provides a luminescent arrangement () comprising an array () of luminescent bodies (), and a matrix () at least partly configured between the luminescent bodies (), wherein the luminescent bodies () comprise a first luminescent material (), wherein the matrix () comprise a light transmissive material (), wherein the light transmissive material () comprises a second luminescent material (), wherein the first luminescent material () and the light transmissive material () are different materials; and wherein the luminescent bodies () comprise ceramic bodies.

Pixelated laser phosphor comprising ceramic phosphor tiles surrounded by phosphor particles in a medium

A light guide () for a lighting device () is provided. The light guide () comprises an incoupling element () configured for receiving light and coupling the received light into the light guide (). The light guide () is configured to convey the received light within the light guide (). The light guide () comprises at least a first group and a second group of conically shaped outcoupling surface structures () distributed on, and recessed into or protruding from, a side () of the light guide (). Each conically shaped outcoupling surface structure () is configured for coupling of light out of the light guide (). Further, each conically shaped outcoupling surface structure () of the first group is geometrically characterized by a shape in accordance with a first cone or conical frustum () and each conically shaped outcoupling surface structure () of the second group is geometrically characterized by a shape in accordance with a second cone or conical frustum (). The first cone or conical frustum () has (i) a height () different from a height (h) of the second cone or conical frustum (), and (ii) a base diameter (bd) different from a base diameter (bd) of the second cone or conical frustum (). The first cone or conical frustum () has a height (h) to base diameter (bd) ratio in a range of 0.4 to 0.7. The second cone or conical frustum () has a height (h) to base diameter (bd) ratio in a range of 0.7 to 1.4.

Light guide and a lighting device comprising a light guide

A tunable laser based light source for Li-Fi communication comprising a laser (), a first optical element (), and a second optical element (). The first optical element () is configured to reflect and/or refract a scanning beam () emitted from the laser (). The second optical element () is configured to broaden the scanning beam () reflected/refracted by the first optical element (). The scanning beam () is configured to scan a scanning area extending with a first scanning length in a broadening direction (SI) and a second scanning length in a scanning direction (S). The second optical element () is configured to broaden the scanning beam () in the broadening direction (S) to a width larger than the first scanning length, and the laser () and the first optical element () are configured to cooperate to enable the scanning beam () to be swept along the scanning direction (S).

Tunable laser based light source

The invention provides a light generating device () comprising (i) n laser light sources (), (ii) focusing optics (), and (iii) a luminescent body (), wherein: (A) the n laser light sources () are configured to generate laser light source light (); wherein the focusing optics () are configured to focus the laser light source light () into a focused beam () of laser light source light (); wherein n≥2; (B) the luminescent body () comprises a luminescent material (), wherein the luminescent body () is configured in a light receiving relationship with the n laser light sources (), wherein the luminescent material () is configured to convert at least part of the laser light source light () into luminescent material light (); (C) the n laser light sources () and focusing optics () are configured to provide in an operational mode light spots () of laser light source light () on the luminescent body (); wherein k sets of light spots () each have an individually selected number of m light spots (), wherein two or more of the light spots () within each set have a partial overlap, wherein 2≤m≤n and 1≤k<n; and (D) wherein a first spot area () is defined by 10-100% of the maximum intensity in the light spot (), wherein for at least one of the light spots () within at least one of the k sets applies that in the range of 5-80% of its first spot area () overlaps with at least another first spot area () within the set.

Laser phosphor based pixelated light source

The invention provides a light generating device () comprising (i) a plurality of n light sources (), and (ii) an optical component () comprising an array () of prismatic elements (), wherein: (a) the plurality of n light sources () comprise a first subset of one or more first light sources () configured to generate collimated first light source light () and a second subset of one or more second light sources () configured to generate collimated second light source light (), wherein n>2; (b) the array () of prismatic elements () is configured in a light receiving relationship with the n light sources (), wherein the array of prismatic elements () comprises k1 parallel arranged first prismatic faces () and k2 parallel arranged second prismatic faces (), wherein k1>2 and wherein k2>2, wherein the first prismatic faces () and the second prismatic faces () are not mutually parallel; (c) the first light sources () are configured to irradiate the first prismatic faces () and the second light sources () are configured to irradiate the second prismatic faces (); and (d) the prismatic elements () are configured to reflect or refract the collimated first light source light () and the collimated second light source light () as coincident beams of first light source light () and second light source light ().

Compact laser beam combiner with micro-prism reflector

A method is provided, wherein a lighting device () comprising an at least partly light transmitting envelope () and a solid state light source () is manufactured. The method comprises arranging () an at least partly light transmitting plastic material () in a mold () having a surface structure () arranged on an inner surface portion of the mold and blow molding () the plastic material so as to form the envelope. During the blow molding, the surface structure is at least partly transferred to the at least partly light transmitting plastic material, thereby forming an optical structure () on a portion of an outer surface of the envelope. The envelope is then removed () from the mold and arranged () to at least partly enclose the solid state light source. The optical structure may be formed to generate a desired optical effect.

Method for manufacturing a lighting device

The lighting device includes a lens array having a plurality of lenses and a focal surface located at a focal distance from the lens array, a light source array having a plurality of light sources arranged to emit light towards the lens array with a light output distributed around a primary axis, and a cover layer having a light-transmissive surface portion delimiting light exit openings. The cover layer is positioned to substantially coincides with the focal surface. Each light source forms a combination with a closest lens, each combination having, in a plane perpendicular to the primary axis, a displacement length and a displacement direction, such that there are least two different displacement lengths and at least two different displacement directions.

Lighting device having light-transmissive cover layer between a lens array and a light source array

The invention provides a light generating device () configured to generate device light (), wherein the light generating device () comprises a first light source (), a first luminescent material (), a second light source () of second light source light (), and a second light source (), wherein: the first light source () is configured to generate blue first light source light () having a first peak wavelength &#x3bb;selected from the spectral wavelength range of 437-472 nm, wherein the first light source () is a first laser light source (); the first luminescent material () is configured to convert at least part of the first light source light () into first luminescent material light () having an emission band having wavelengths in one or more of (a) the green spectral wavelength range and (b) the yellow spectral wavelength range, wherein the first luminescent material () comprises a luminescent material of the type ABO:Ce, wherein A comprises one or more of Y, La, Gd, Tb and Lu, especially (at least) one or more of Y, Gd, Tb and Lu, and wherein B comprises one or more of Al, Ga, In and Sc; the second light source () of second light source light () is configured to provide the second light source light () having an emission band having a dominant wavelength or peak wavelength in the spectral wavelength range of 580-610 nm; the second light source () is configured to generate red second light source light () having a second peak wavelength &#x3bb;selected from the spectral wavelength range of 630-670 nm, wherein the second light source () is a second laser light source (); the light generating device () is configured to provide in a first operational mode white device light () comprising the first light source light (), the first luminescent material light (), the second light source light (), and the second light source light (), with a correlated color temperature selected from the range of 2000-3150 K and a color rendering index (CRI) of at least 80.

High intensity light source with high CRI and R9

The invention provides an arrangement () comprising a device (), wherein the device () comprises a luminescent material comprising element () and a light transmissive element (), wherein: (a) the device () has a first device axis (A1); (b) the luminescent material comprising element () comprises a luminescent material () configured to emit luminescent material light () upon irradiation with first light (), wherein the luminescent material comprising element () has a first length (L1) and a characteristic first dimension (D1) perpendicular to the first length (L1), wherein D1/L1&#x3c;1; wherein the luminescent material comprising element () is configured at a non-zero first distance (r1) from the first device axis (A1), and wherein the luminescent material comprising element () at least partly surrounds the first device axis (A1); (c) the light transmissive element () is transmissive for the first light (), wherein the light transmissive element () comprises a element light entrance part (and an element light escape part (), wherein the element light escape part () and the luminescent material () are radiationally coupled; wherein one or more of the following applies: (i) the first device axis (A1) intersects the light transmissive element (), and (ii) the light transmissive element () at least partly surrounds the first device axis (A1); and (d) the luminescent material comprising element () is in thermal contact with one or more of (a) the light transmissive element () and (b) an optional thermally conductive element ().

Compact laser-based light generating device

Growing community of inventors

Eindhoven, Netherlands

Hugo Johan Cornelissen