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1. EP2559935 - OPTICAL UNIT

Office
European Patent Office
Application Number 11768628
Application Date 12.04.2011
Publication Number 2559935
Publication Date 20.02.2013
Publication Kind B1
IPC
G01S 17/93
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
17Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
88Lidar systems, specially adapted for specific applications
93for anti-collision purposes
B60Q 1/14
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
1Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
02the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
04the devices being headlights
14having dimming means
B60R 11/04
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
11Arrangements for holding or mounting articles, not otherwise provided for
04Mounting of cameras operative during drive; Arrangement of controls thereof relative to the vehicle
F21S 41/147
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
41Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
10characterised by the light source
14characterised by the type of light source
141Light emitting diodes
147the main emission direction of the LED being angled to the optical axis of the illuminating device
F21S 41/155
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
41Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
10characterised by the light source
14characterised by the type of light source
141Light emitting diodes
155Surface emitters, e.g. organic light emitting diodes
F21S 41/25
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
41Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
20characterised by refractors, transparent cover plates, light guides or filters
25Projection lenses
CPC
F21S 41/675
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
41Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
60characterised by a variable light distribution
67by acting on reflectors
675by moving reflectors
F21S 41/25
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
41Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
20characterised by refractors, transparent cover plates, light guides or filters
25Projection lenses
F21S 45/43
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
45Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
40Cooling of lighting devices
42Forced cooling
43using gas
F21S 41/141
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
41Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
10characterised by the light source
14characterised by the type of light source
141Light emitting diodes [LED]
F21V 33/0052
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
33Structural combinations of lighting devices with other articles, not otherwise provided for
0004Personal or domestic articles
0052Audio or video equipment, e.g. televisions, telephones, cameras or computers; Remote control devices therefor
F21W 2102/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
WINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
2102Exterior vehicle lighting devices for illuminating purposes
Applicants KOITO MFG CO LTD
Inventors YAMAMURA SATOSHI
Designated States
Priority Data 2010092123 13.04.2010 JP
2010092124 13.04.2010 JP
2010097946 21.04.2010 JP
2010110139 12.05.2010 JP
2011021905 03.02.2011 JP
Title
(DE) OPTISCHE EINHEIT
(EN) OPTICAL UNIT
(FR) UNITÉ OPTIQUE
Abstract
(EN) Disclosed is an optical unit wherein a rotating reflector (26) rotates about a rotation axis in one direction, while reflecting light emitted from a light source. The rotating reflector (26) is provided with a reflecting surface such that the light reflected by the rotating reflector, while rotating, forms a desired light distribution pattern, said light having been emitted from the light source. The light source is composed of light emitting elements. The rotation axis is provided within a plane that includes an optical axis and the light source. The rotating reflector (26) is provided with, on the periphery of the rotation axis, a blade that functions as the reflecting surface.
(FR) La présente invention concerne une unité optique dans laquelle un réflecteur rotatif (26) tourne dans une direction avec un axe de rotation central, tout en réfléchissant la lumière émise par une source lumineuse. Le réflecteur rotatif (26) est pourvu d'une surface réfléchissante afin de permettre à la lumière réfléchie par le réflecteur rotatif de former, tout en tournant, un schéma de distribution lumineuse souhaité, ladite lumière ayant été émise par la source lumineuse. La source lumineuse se compose d'éléments électroluminescents. L'axe de rotation se trouve dans un plan qui comprend un axe optique et la source lumineuse. Le réflecteur rotatif (26) est doté, à la périphérie de l'axe de rotation, d'une lame qui fait office de surface réfléchissante.