公开(公告)号：US10330275B2

公开(公告)日：2019-06-25

申请号：US16000900

申请日：2018-06-06

Applicant: Osram GmbH

Inventor： Jan Oliver Drumm ,  Michael Rosenauer ,  Benjamin Dollinger

IPC: F21S41/00 ,  F21S41/32 ,  G02B5/20 ,  G02B5/30 ,  G02B27/09 ,  F21S41/16 ,  F21S41/176 ,  F21S45/70

Abstract: A lighting apparatus includes a light source for emitting an illumination light, a micromirror array having a plurality of micromirror actuators, and an illumination optical unit and an optical sensor unit. The illumination light emitted by the light source is guided onto the micromirror actuators and reflected at the latter and, with the reflection integrated over time, an on beam is reflected to a lighting application by the micromirror actuators in a respective on tilt position via the illumination optical unit, and an off beam is reflected next to the illumination optical unit by the micromirror actuators in a respective off tilt position. Part of the illumination light contained in the off beam is guided, at least in part, onto the optical sensor unit.

公开(公告)号：US20180356063A1

公开(公告)日：2018-12-13

申请号：US16000900

申请日：2018-06-06

Applicant: Osram GmbH

Inventor： Jan Oliver Drumm ,  Michael Rosenauer ,  Benjamin Dollinger

IPC: F21S41/32 ,  G02B5/20 ,  G02B5/30 ,  G02B27/09

CPC classification number: F21S41/32 ,  F21S41/16 ,  F21S41/176 ,  F21S45/70 ,  G02B5/20 ,  G02B5/30 ,  G02B27/0933 ,  G02B27/0977

Abstract: A lighting apparatus includes a light source for emitting an illumination light, a micromirror array having a plurality of micromirror actuators, and an illumination optical unit and an optical sensor unit. The illumination light emitted by the light source is guided onto the micromirror actuators and reflected at the latter and, with the reflection integrated over time, an on beam is reflected to a lighting application by the micromirror actuators in a respective on tilt position via the illumination optical unit, and an off beam is reflected next to the illumination optical unit by the micromirror actuators in a respective off tilt position. Part of the illumination light contained in the off beam is guided, at least in part, onto the optical sensor unit.

公开(公告)号：US10670217B2

公开(公告)日：2020-06-02

申请号：US16182656

申请日：2018-11-07

Applicant: OSRAM GmbH

Inventor： Christian Gammer ,  Benjamin Dollinger

IPC: F21S41/32 ,  F21S45/70 ,  F21S41/176 ,  F21S41/675 ,  F21S41/16 ,  H04N5/232

Abstract: An illumination device includes a light source, a micromirror array having micromirror actuators, switchable in each case between an on state and an off state, an optical unit, and an optical sensor unit. The light is guided onto the array and proportionally at a respective one of the actuators in an on tilt position is reflected to an illumination application, and in an off tilt position is reflected to the optical sensor unit. The device is configured such that a first actuator, which is in an on state in the on tilt position, is brought to the off tilt position for a first test interval, and a second actuator, which is in an off state in the off tilt position, remains in the off tilt position for the first test interval. A radiation power incident on the sensor unit during the first test interval is detected by the sensor unit.

公开(公告)号：US20190145598A1

公开(公告)日：2019-05-16

申请号：US16182656

申请日：2018-11-07

Applicant: OSRAM GmbH

Inventor： Christian Gammer ,  Benjamin Dollinger

IPC: F21S41/32 ,  H04N5/232 ,  F21S41/16 ,  F21S41/675

Abstract: An illumination device includes a light source, a micromirror array having micromirror actuators, switchable in each case between an on state and an off state, an optical unit, and an optical sensor unit. The light is guided onto the array and proportionally at a respective one of the actuators in an on tilt position is reflected to an illumination application, and in an off tilt position is reflected to the optical sensor unit. The device is configured such that a first actuator, which is in an on state in the on tilt position, is brought to the off tilt position for a first test interval, and a second actuator, which is in an off state in the off tilt position, remains in the off tilt position for the first test interval. A radiation power incident on the sensor unit during the first test interval is detected by the sensor unit.