Koninklijke Philips Corporation N.V.

Philips Lighting Holding B.v.

Signify Holding B.v.

Maarten Van Lierop

Hugo Johan Cornelissen

Eliav Itzhak Haskal

Henricus Franciscus Bonekamp

Floris Maria Hermansz Crompvoets

Fetze Pijlman

Hendrik Jan Eggink

Peter Tjin Sjoe Kong Tsang

Robert Van Asselt

Michel Cornelis Josephus Marie Vissenberg

Jelte Peter Vink

Barry Mos

Albert Bijlsma

Kwan Nai Lee

Arno Vredenborg

Jeroen De Kleijn

Daniel Anton Benoy

Petrus Gerardus Josephus Maria Nuyens

Prarthana Shrestha

Daniël Anton Benoy

Petrus Gerardus Josephus Maria Nuijens

Gerardus Johannes Wilhelmus Van Den Braak

Mathijs Rem

A method (and system) is provided obtaining an adapted calibration transformation for whole slide imaging, wherein the adapted calibration transformation is for outputting the color of an empty area of the slide in a whole slide image, WSI, as a desired color. The method comprises first receiving a color target WSI in a device-dependent color space, wherein the color target WSI is a WSI of a color target from a scanner represented in the device-dependent color space. The color target contains at least a white patch and three (near) primary color patches. A calibration transformation is obtained for transforming the device-dependent color space to a device-independent color space. A chromatic adaptation transformation is derived using the color of the white patch in the device-dependent color space, the color of the empty (glass) area in the device-independent color space and the desired empty (glass) color in the target color space. An adapted calibration transformation is obtained by applying the chromatic adaptation transformation to the calibration transformation.

Method and system for whole slide imaging

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

A lighting device () is disclosed, comprising an at least partly light transmitting envelope () arranged to at least partly enclose a light source (). The envelope comprises a portion () that is elastic such that its extension and orientation relative to a nominal optical axis of a base () of the lighting device is adjustable so as to allow for light output from the lighting device to be modified. A method for manufacturing such lighting device is also disclosed.

Lighting device with elastic envelope

A lighting unit comprising a tapering cavity surrounded by a circumferential reflective wall and extending between a light emission window and a light entrance surface where a light source is (to be) mounted. An optical plate having a light outcoupling structure is provided at the light emission window for redirecting and issuing light as a uniform lighting unit light beam. Said uniform lighting unit light beam has a first beam emission angle &#x3b2; in a first direction and optionally, for example for a rectangular shaped light emission window, a second beam emission angle &#x3b3; in a second direction transverse to the first direction. The tapering cavity having a first cut-off angle &#x3b1; in said first direction, wherein &#x3b2;=&#x3b1;+2*&#x3b4; with 0&#xb0;&#x3c;&#x3b4;&#x3c;=10&#xb0;, and optionally a second cut-off angles &#x3b5; in the second direction transverse to the first direction wherein &#x3b3;=&#x3b5;+&#x398; with 0&#xb0;&#x3c;=&#x398;&#x3c;=10&#xb0;.

Lighting unit, especially for road illumination

The invention relates to a method for controlling a lighting system, wherein the lighting system comprises a plurality of light-emitting ceiling tiles and a control unit for controlling the plurality of light-emitting tiles. The method comprises the step of controlling the plurality of light-emitting tiles to provide a predetermined luminance contrast in the ceiling. The method further comprises the step of, for the predetermined luminance contrast, controlling the plurality of light-emitting tiles to provide a substantially uniform light distribution incident on a target surface such as a horizontal work plane. The method enables the lighting conditions in a room to be adjusted for improving visual comfort and illumination without affecting the illumination at a task level.

Embedded lighting ceiling tiles with an adaptive ceiling luminance distribution

The invention provides a lighting unit () comprising (a) a lighting unit cavity (), (b) a light source unit (), for light source unit light (), wherein the light source unit () comprises a light source () and a collimator (), and (c) a light exit window (), configured to enclose at least part of the lighting unit cavity () and configured to allow transmission of at least part of the light source unit light () as a beam of light (), wherein the light exit window () comprises an upstream face () and a downstream face (), with the upstream face () directed to the lighting unit cavity (); wherein the upstream face () comprises light outcoupling structures (), configured to couple the light source unit light () via the light exit window () out of the lighting unit ().

The present invention relates to an optical device () for forming a light beam, which optical device comprises a lens () having a top section () configured to receive light emitted by a light source (), a bottom section () configured to allow the received light to exit the lens, and a plurality of side sections () stretching from the top section to the bottom section. The plurality of side sections enclose the lens and are adapted to reflect and refract incident rays of the received light. A cross-section () of the lens, in a plane perpendicular to a center axis () stretching from the top section to the bottom section, has the shape of a polygon, which polygon is oriented in a length-wise direction () and in a transversal direction () being perpendicular to each other. Furthermore, the lens is adapted such that the received light exits the lens as a light beam formed to an elongated shape () at a predetermined distance () from the optical device. With the presented optical device, a compact lens enabling for a desired elongated illumination distribution is provided.

Optical device for forming a light beam

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's-Hertogenbosch, Netherlands

Maarten Van Lierop