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1. 发明公开

EP4087372A1 A METHOD FOR DETECTING LIGHT BEAMS, CORRESPONDING LIGHTING SYSTEM AND COMPUTER PROGRAM PRODUCT 审中-公开
公开(公告)号：EP4087372A1
公开(公告)日：2022-11-09
申请号：EP22165599.6
申请日：2022-03-30
申请人： OSRAM GmbH , CLAY PAKY S.p.A. , OSRAM S.P.A. - SOCIETA' RIUNITE OSRAM EDISON CLERICI
发明人： ALFIER, Alberto , CALLEGARI, Massimo
IPC分类号： H05B47/125 , G06V20/00 , H05B47/165
摘要： A computer-vision system equipped with a first camera and a second camera spaced apart from each other enables acquisition of a first image (ImgL) and a second image (ImgR) of a light beam that propagates from a light-beam source towards a target position of the light beam. The first image (ImgL) and the second image (ImgR) of the beam differ from each other as a result of the first camera and the second camera being spaced apart from each other.
The system produces (206) a disparity map of the first image (ImgL) and second image (ImgR) of the beam that is to be projected in a three-dimensional point cloud starting from the disparity map according to point-cloud-projection calibration data (CC) that set in relation disparity maps for reference images with respective three-dimensional point clouds. The points of the three-dimensional point cloud projected are clustered together (208) to produce a geometrical line (210) that extends between the light-beam source and the target position of the light beam. It is thus possible, for example, to locate an actual target position of the light beam, which is to be compared with a desired target position, detecting the relative offset thereof. The orientation of the beam can then be adjusted as a function of the offset detected, causing the light beam to propagate towards the desired target position.

2. 发明公开

EP3920665A1 A METHOD OF DRIVING LIGHT SOURCES, AND CORRESPONDING DEVICE AND SYSTEM 审中-公开
公开(公告)号：EP3920665A1
公开(公告)日：2021-12-08
申请号：EP21175615.0
申请日：2021-05-25
申请人： OSRAM GmbH , OSRAM S.P.A. - SOCIETA' RIUNITE OSRAM EDISON CLERICI
发明人： ANGELIN, Mr. Francesco , GRIFFONI, Mr. Alessio
IPC分类号： H05B45/33 , H05B45/335
摘要： Described herein is a method for driving (10) one or more electrically powered light sources, such as LED modules (121, 122, ..., 12n), applying thereto a pulse-width-modulated signal having a pulse-repetition frequency and a duty-cycle, the duty-cycle being selectively variable in order to vary the intensity of light emitted by the light source or light sources (121, 122, ..., 12n).
To counter the occurrence of temporal light artefacts, or TLAs, the method envisages frequency modulating (100, V fm ) the pulse-width-modulated signal (V PWM ) by varying the pulse-repetition frequency thereof around a certain value between a lower frequency value and a higher frequency value, thus giving rise to a signal with combined FM/PWM modulation.

3. 发明公开

EP3696579A1 A METHOD OF PROJECTING LIGHT RADIATION AND CORRESPONDING DEVICE 审中-公开
公开(公告)号：EP3696579A1
公开(公告)日：2020-08-19
申请号：EP20155570.3
申请日：2020-02-05
申请人： OSRAM GmbH , CLAY PAKY S.p.A. , OSRAM S.P.A. - SOCIETA' RIUNITE OSRAM EDISON CLERICI
发明人： ANGELINI, Mr. Marco , FRISON, Mr. Renato , ALFIER, Mr. Alberto
IPC分类号： G02B5/02 , F21S10/00 , F21V14/06 , G02B19/00 , F21V3/04
摘要： A lighting device (10) such as a projector employed in the field of show and entertainment, comprises:
- a light radiation source (12),
- a first optical system (14) configured to project light radiation from the light radiation source (12) onto a gobo plane (GP),
- a holder (18) of gobo (16), configured to hold a gobo (16) at the gobo plane (GP),
- a second optical system (20) configured to project towards a projection surface (PP) light radiation projected onto the gobo plane (GP), and
- a light diffuser (22) configured to be coupled to a gobo (16) held at the gobo plane (GP) by gobo holder (18).

4. 发明授权

EP2461647B1 DC/DC Converter 有权
公开(公告)号：EP2461647B1
公开(公告)日：2020-04-22
申请号：EP11191128.5
申请日：2011-11-29
申请人： OSRAM GmbH , OSRAM S.P.A. - SOCIETA' RIUNITE OSRAM EDISON CLERICI
发明人： Angelin, Francesco , De Anna, Paolo
IPC分类号： H05B33/08

5. 发明授权

EP3451798B1 POWER-SUPPLY CIRCUIT, AND RELATED LIGHTING SYSTEM AND METHOD FOR OPERATING A POWER-SUPPLY CIRCUIT 有权
公开(公告)号：EP3451798B1
公开(公告)日：2020-02-19
申请号：EP18190165.3
申请日：2018-08-22
申请人： OSRAM GmbH , OSRAM S.P.A. - SOCIETA' RIUNITE OSRAM EDISON CLERICI
发明人： UGLIANO, Giaime , MINUTI, Maurizio
IPC分类号： H05B33/08

6. 发明公开

EP3528378A1 ELECTRONIC CONVERTER AND RELATED LIGHTING SYSTEM 审中-公开
公开(公告)号：EP3528378A1
公开(公告)日：2019-08-21
申请号：EP19155919.4
申请日：2019-02-07
申请人： OSRAM GmbH , OSRAM S.P.A. - SOCIETA' RIUNITE OSRAM EDISON CLERICI
发明人： LUCCATO, Daniele
IPC分类号： H02M3/335 , H02M3/337 , H02M1/00
摘要： There is described an electronic converter (10) comprising a switching stage (112), a transformer (T), a measurement circuit (132) and a driver circuit (118). The transformer (T) includes a magnetization inductance (L M ), whereby the current ( i P ) flowing through the primary winding (T1) corresponds to the sum of the magnetization current and of a current ( i T1 ) which is proportional to the current ( i T2 ) flowing through the secondary winding (T2) of the transformer (T). The measurement circuit (132) determines a measurement signal (S' REG ) indicative of the current ( i T2 ) flowing through the secondary winding (T2) of the transformer (T). The driver circuit (118) drives ( DRV ) the switching stage (112) as a function of said measurement signal ( S' REG ) . Specifically, the driver circuit (118) is configured to:
- during a first interval, apply a positive voltage to the primary winding (T1), whereby the magnetization current ( i LM ) increases substantially linearly, and
- during a second interval, apply a negative voltage to the primary winding (T1), whereby the magnetization current ( i LM ) decreases substantially linearly.
Specifically, the measurement circuit (132) comprises an inductive element (L) connected in series with the primary winding (T1), wherein the inductive element (L) supplies a first voltage ( V L ) proportional to the derivative of current ( i P ) flowing through the inductive element (L), whereby the first voltage ( V L ) includes a first offset during the first interval and a second offset during the second interval. The measurement circuit (132) moreover comprises an offset cancellation circuit (R1, R2, V aux ), configured to generate a second voltage ( V S ) by cancelling the first and/or the second offset from the first voltage (V L ), and an analog integrator (RF, CF) configured to generate the measurement signal ( S' REG ) by integrating the second voltage ( V S ) .

7. 发明授权

EP3334263B1 PRINTED CIRCUIT BOARD, CORRESPONDING LIGHTING MODULE, LIGHTING SYSTEM AND METHOD FOR IMPLEMENTING LIGHTING MODULES 有权
公开(公告)号：EP3334263B1
公开(公告)日：2019-08-21
申请号：EP17205871.1
申请日：2017-12-07
申请人： OSRAM GmbH , OSRAM S.P.A. - SOCIETA' RIUNITE OSRAM EDISON CLERICI
发明人： BOBBO, Simon , MICHIELAN, Valerio , VOLPATO, Luca
IPC分类号： H05B33/08 , H05K1/02 , H05K3/22

8. 发明公开

EP3506434A1 A CONNECTOR FOR LINEAR LIGHTING DEVICES AND LINEAR LIGHTING SYSTEM COMPRISING THIS CONNECTOR 审中-公开
公开(公告)号：EP3506434A1
公开(公告)日：2019-07-03
申请号：EP18214443.6
申请日：2018-12-20
申请人： OSRAM GmbH , OSRAM S.P.A. - SOCIETA' RIUNITE OSRAM EDISON CLERICI
发明人： BOBBO, Simon , DIDONE', Roberto , ZANOTTO, Alberto
IPC分类号： H01R11/20 , H01R12/67 , H01R4/2404 , H01R103/00 , H01R13/506 , F21V23/06 , F21V21/002 , F21Y103/10 , F21Y115/10
摘要： A connector for linear lighting devices, comprising:
- a first and a second C-shaped connector part (14, 16), which can be snap-engaged with each other,
- at least one connecting pin (28) protruding from an inner surface of one of said connector parts (14),
- at least one conductive element (30) contained within the thickness (T) of said connector part (14) and electrically connecting said at least one connecting pin (28) to a connection point (32, 38) with a power supply cable (36).

9. 发明授权

EP2674014B1 AN OCCUPANCY SENSOR 有权
公开(公告)号：EP2674014B1
公开(公告)日：2019-06-19
申请号：EP11713364.5
申请日：2011-03-11
申请人： OSRAM GmbH , OSRAM S.P.A. - SOCIETA' RIUNITE OSRAM EDISON CLERICI
发明人： MANNKE, Torsten , HACKENBUCHNER, Stefan , CECCHETTI, Christian , BORTOT, Enrico , LIESS, Uwe
IPC分类号： H05B37/02 , G08B13/19 , G08B29/24 , G08B29/04

10. 发明授权

EP3260775B1 A HEAT SINK, CORRESPONDING LIGHTING DEVICE AND METHOD OF USE 有权
公开(公告)号：EP3260775B1
公开(公告)日：2019-03-13
申请号：EP17176359.2
申请日：2017-06-16
申请人： OSRAM GmbH , OSRAM S.P.A. - SOCIETA' RIUNITE OSRAM EDISON CLERICI
发明人： BIZZOTTO, Mr. Alessandro , MUNARIN, Mr. Marco , SCHICCHERI, Mr. Nicola
IPC分类号： F21V29/74 , F21S41/19 , F21S41/148 , F21S45/47 , F21Y107/90 , F21Y115/10

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