EP3642658A1 - Module d'éclairage pour dispositif d'émission de lumière, dispositif d'émission de lumière et utilisation d'un monolithe optique - Google Patents

Module d'éclairage pour dispositif d'émission de lumière, dispositif d'émission de lumière et utilisation d'un monolithe optique

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Publication number
EP3642658A1
EP3642658A1 EP18735531.8A EP18735531A EP3642658A1 EP 3642658 A1 EP3642658 A1 EP 3642658A1 EP 18735531 A EP18735531 A EP 18735531A EP 3642658 A1 EP3642658 A1 EP 3642658A1
Authority
EP
European Patent Office
Prior art keywords
light
optics
light module
projection
optical
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP18735531.8A
Other languages
German (de)
English (en)
Inventor
Dennis Ochse
Michael Degel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jenoptik Optical Systems GmbH
Original Assignee
Jenoptik Optical Systems GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jenoptik Optical Systems GmbH filed Critical Jenoptik Optical Systems GmbH
Publication of EP3642658A1 publication Critical patent/EP3642658A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
    • G02B19/0028—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed refractive and reflective surfaces, e.g. non-imaging catadioptric systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F21S41/27—Thick lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/285—Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24-F21S41/28
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/321—Optical layout thereof the reflector being a surface of revolution or a planar surface, e.g. truncated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/67—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors
    • F21S41/675—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors by moving reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—Light emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/26—Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/30—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors
    • F21S43/31—Optical layout thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/40—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the combination of reflectors and refractors
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/0055—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element
    • G02B13/0065—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element having a beam-folding prism or mirror
    • G02B13/007—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element having a beam-folding prism or mirror the beam folding prism having at least one curved surface
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B17/00—Systems with reflecting surfaces, with or without refracting elements
    • G02B17/08—Catadioptric systems
    • G02B17/0856—Catadioptric systems comprising a refractive element with a reflective surface, the reflection taking place inside the element, e.g. Mangin mirrors
    • G02B17/086—Catadioptric systems comprising a refractive element with a reflective surface, the reflection taking place inside the element, e.g. Mangin mirrors wherein the system is made of a single block of optical material, e.g. solid catadioptric systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
    • G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/08—Lighting devices intended for fixed installation with a standard
    • F21S8/085—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light
    • F21S8/086—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light with lighting device attached sideways of the standard, e.g. for roads and highways
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/04—Controlling the distribution of the light emitted by adjustment of elements by movement of reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/08—Refractors for light sources producing an asymmetric light distribution
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/103—Outdoor lighting of streets or roads

Definitions

  • the invention relates to a light module for an emitting device, an emitting device, uses of the light module and a use of an optical monolith.
  • Light modules such as those used in vehicles or for the illumination of streets or rooms, often have a variety of optical elements that are complex to adjust.
  • the object of the invention is to provide an improved light module for an emission device, an improved emission device and a new use of an optical monolith.
  • an optical monolith can be used to realize a projection device of a light module, the optical monolith having at least one free-form surface.
  • the light module can be used for lighting and / or imaging units.
  • the light module can be designed by a suitable simplified optics so that the number of optical interfaces is reduced and also the assembly and adjustment effort is reduced.
  • a lighting unit paired with a projection unit can be opened.
  • the beam path can be folded so that thereby the optically effective surfaces are kept low.
  • a light module also called a projection light module, which contains at least one free-form surface which is realized by at least one optical monolith.
  • a corresponding light module for an emission device comprises at least one light source and at least one projection device, which can image light emerging from the light source into an area in front of the emission device in the form of at least one light distribution.
  • the projection device has an entrance optics, a projection optics and an exit optics.
  • the projection optics are arranged in a beam path between the entrance optics and the exit optics and are designed to modulate an image onto a light beam.
  • the entry optics and / or the exit optics comprise an optical monolith having at least one free-form surface.
  • at least one lighting module can be integrated in the emitting device, which directly emits light of another light source without modulating an image.
  • the emission device is a lamp, a lamp, a display or a headlight.
  • the light source comprises, for example, at least one light-emitting diode, a laser, a halogen lamp or another suitable device for emitting light.
  • the projection device may be formed to generate the light distribution using the light of the light source, which is visible, for example, to a viewer in an area illuminated by the emitting device.
  • the light distribution can image the image, which is modulated by the projection optics to the light of the light source.
  • the projection optics can be designed to use a suitable modulation method for modulating the image.
  • the projection optics can be designed to reflect the light of the light source using an array of movable optics, either in the beam path leading to the exit optics or out of the beam path.
  • the image in the form of a digital image or a control signal representing the digital image can be provided to the projection optics and modulated onto the light beam by the projection optics.
  • An optical monolith can be understood to mean a base body made of a refractive component which has a plurality of functional surfaces. For example, light can be coupled into the monolith via a first refractive surface, reflected on a second surface, and coupled out of the monolith via a second refractive surface.
  • the entrance optics may be formed as the optical monolith or comprise at least one further element, for example a further optical element, in addition to the optical monolith. Accordingly, the exit optics can be formed as the optical monolith or comprise at least one further element, for example a further optical element, in addition to the optical monolith.
  • the optical component in the form of the monolith can be used instead of a multi-lens system.
  • An application relates, for example, to a projection technique based on a so-called digital light processing system for an HD matrix headlight (high-resolution headlight).
  • HD matrix headlight high-resolution headlight
  • An embodiment of the monolith as an innovative optical component also allows an alternative optical and mechanical design.
  • the monolith used for example in the form of a monolithic module, in which no optical elements have to be adjusted to one another, makes it possible that no adjustment processes of the imaging system and thus no adjustment costs are incurred.
  • the components in the overall system can be kept low.
  • the optical monolith may have two aspheric surfaces and one free-form surface. Through the aspherical surfaces, light can be coupled into the monolith and decoupled. The freeform surface can be used to reflect the light within the monolith.
  • Such a monolith can be realized very inexpensively.
  • the optical monolith may have two aspheric surfaces and two free-form surfaces.
  • the two free-form surfaces allow a double reflection of the light in the monolith. This offers, for example, extended possibilities with regard to the emission direction of the light. It can also be used optical monoliths with more than two free-form surfaces.
  • An optical element may be arranged in the beam path.
  • the optical element can be arranged, for example, in an input-side section of the beam path. Additionally or alternatively, the or a further optical element may be arranged in an output-side section of the beam path.
  • a corresponding optical element can also be integrated in the projection optics.
  • the optical element can be used to optimize the light beam path within the projection device. According to one embodiment, the optical element is formed and arranged so that it is located in an input-side and output-side beam path with respect to the projection optics.
  • the light module may comprise at least one further entry optics and additionally or alternatively at least one further exit optics.
  • the corresponding optics may include another optical monolith. Thus, several optical monoliths can be arranged in series.
  • the light module may include a control device that may be configured to control a function of the light module and / or the projection device.
  • the control device may enable an operator to operate the light module and additionally or alternatively the projection device.
  • the controller may be configured to define the image that is modulated onto the light beam and that controls the modulation process, for example, using a control signal.
  • the control device can have an interface to an environment detection device and be designed to control a control signal for controlling the function of the light module and / or the projection device in response to an environment signal received via the interface.
  • the surroundings detection device can be, for example, a camera or a light barrier.
  • the light module can be activated, for example, when an object approaches the area that can be irradiated by the emitting device, or a digital image can be selected which is modulated onto the light beam using the control signal, depending on the situation detected using the surroundings detection device.
  • the light module can be used for a headlight and / or a tail light of a vehicle, for example a motor vehicle, a rail vehicle, a watercraft or aircraft.
  • the light module can also be used for interior lighting or a display in the interior of a vehicle.
  • a use of the light module in a lamp, a street lamp, a traffic light, a hall lamp or a stadium lamp is possible.
  • an optical monolith having at least one free-form surface in order to image light emerging from a light source in the form of at least one light distribution.
  • Figure 1 is a schematic representation of a light module according to an embodiment
  • Figure 2 is a schematic representation of a light module according to an embodiment with
  • Figure 3 is a schematic representation of an exit optics according to an embodiment
  • Figure 4 is a schematic representation of an exit optics according to a
  • Figure 5 is a schematic representation of a radiation device according to an embodiment.
  • Figure 6 shows schematic representations of different uses of a radiation device according to an embodiment.
  • the same or similar reference numerals are used for the elements shown in the various figures and similarly acting, wherein a repeated description of these elements is omitted.
  • FIG. 1 shows a schematic representation of a light module 100 according to an exemplary embodiment.
  • the light module 100 can be used for example in an emission device of a vehicle, for example in a headlight, or in a street lamp.
  • the light module 1 00 comprises a light source 1 02 and a projection device 104.
  • the light source 102 is designed to emit light, in particular light 106 in the visible range.
  • the light source 102 may generally be used as a lighting, e.g. be understood as at least one LED.
  • the projection device 104 is designed to generate and emit a light distribution 108 using the light 106.
  • the projection device 104 is designed to project the light distribution 108 onto a surface irradiated by the emission device, and thus to make an image, which is shown by the light distribution 108, appear on the surface for a viewer.
  • the light distribution 108 can thus be understood as a bundle of light beams or alternatively as a moving light beam.
  • the projection device 1 04 has an entrance optics 1 10, a projection optics 1 1 2 and an exit optics 1 14.
  • the entrance optics 1 10 represents an input interface, via which the light 106 of the light source is coupled into the projection device 104.
  • the exit optics 1 14 represents an output interface, via which the light distribution 1 08 is coupled out of the projection device 1 04.
  • the projection optical system 1 1 2 is arranged in a beam path extending from the entrance optics 1 10 to the exit optics 1 14, an input-side section 1 1 6 of the beam path extending from the entry optics 1 10 to the projection optics 1 1 2 and an exit-side section 1 18 of the beam path of the projection optics 1 1 2 to the exit lens 1 14 runs.
  • the entrance optics 1 10 is designed to direct the coupled-in light 106 along the input-side section 1 1 6 of the beam path to the projection optics 1 1 2.
  • the projection optical system 1 1 2 is designed to choirmodulieren a digital image on a light beam 1 20 schematically illustrated here.
  • the light beam 120 according to this exemplary embodiment is the light or part of the light conducted by the entrance optics 1 10 along the input-side section 1 1 6 of the beam path onto the projection optical system 1 1 2.
  • the projection optics 1 1 2 at least one movable mirror 122.
  • the mirror 1 22 is movable by an angle 124.
  • the light beam 120 is deflected according to an embodiment of the input-side portion 1 1 6 of the beam path in the output-side portion 1 18 of the beam path to the exit lens 1 14.
  • the mirror 1 22 is in a second position, in this case the right-hand position, then the light beam 1 20 is deflected out of the input-side section 1 1 6 of the beam path out of the output-side section 1 18 of the beam path and thus does not hit the exit optics 1 14.
  • the image is optically generated only within the beam path of the projection device 104.
  • a control signal of a control device is used.
  • the mirror 1 22 may represent a mirror arrangement of a plurality of mirrors, in particular of a plurality of micromirrors, stand.
  • the projection optical system 1 1 2 is designed, for example, as a so-called DLP device (digital light processing device) or DMD device (digital micromirror device device).
  • either the entrance optics 1 1 0 or the exit optics 1 14 is designed as an optical monolith or comprises such an optical monolith.
  • both the entrance optics 1 10 and the exit optics 1 14 are each designed as an optical monolith or each comprise such an optical monolith.
  • the optical monolith comprises at least one free-form surface on which light can be reflected in the interior of the monolith.
  • the entry surfaces are free forms.
  • the light module 100 may comprise at least one further entry optics 110 and additionally or alternatively at least one further exit optics 114.
  • the light module 100 is used for example for a lighting and / or imaging beam path, as for example for motor vehicle headlights, for the vehicle interior and / or vehicle taillights, or for example for lights for illuminating streets, squares, in stadiums or in Halls or as a machine lamp or engine room interior light, is used.
  • the light module 100 comprises at least one light source 102 and at least one projection device 104, which projects the light 106 emerging from the at least one light source 102 into an area in front, behind and / or in the motor vehicle, or from a light onto a surface, such as For example, on a road, or on the tread in stadiums, or on the floor of a hall in sports facilities or in machine shops or warehouses.
  • the light is imaged in the form of at least one light distribution 108.
  • the projection device 104 includes the entrance optics 1 10, the exit lens 1 14, which in turn may have one, two or more exit optics.
  • the light module 100 is designed with a suitable simple optics so that the number of optical interfaces is kept low and also the assembly and adjustment effort is low. At the same time, a lighting unit paired with a projection unit can be developed as a new field of application.
  • the beam path is folded so that thereby the optically effective surfaces are kept low.
  • the light module 100 which is also referred to as a projection light module, which contains at least one free-form surface, which is realized by at least one optical monolith.
  • the light module 100 for an emitting device thus comprises at least one light source 102 and at least one projection device 104, which images the light 106 emerging from the light source 102 into an area in front of the emitting device in the form of at least one light distribution 108.
  • the projection device 104 according to one embodiment comprises an entrance optics 1 10, which has one, two or more entrance optics, the projection optics 1 1 2, which modulates a digital image on the light beam 120, and the exit optics 1 14, which one, two or more Has exit optics.
  • at least one optical monolith with at least one free-form optical system is integrated into the entrance optics 1 10 and / or the exit optics 1 14.
  • the exit optics 1 14 is an optical monolith.
  • the optical monolith is designed such that the imaging quality meets the requirements as required by conventionally known lens systems of imaging optics.
  • the monolith may be made of glass or plastic.
  • the monolith is a PMMA plastic.
  • the plastic may be specifically designed according to the purposes of use.
  • the monolith may be fixed or movable, e.g. be tilted, rotated, rotated, etc., z. B. adjustments, such as distance to the screen, etc. to compensate.
  • the beam path and such measures can be integrated, which allow a colored representation of projected by the light distribution 108 projection image.
  • entrance optics 1 10 and exit optics 1 14 are characterized by using at least one monolithic optic, preferably with freeform optics or freeform optics.
  • entrance optics 1 10 and exit optics 1 1 4 are each equipped with at least one optical monolith.
  • the monolith can be, for example, as input optics 1 10 made of glass and / or as output optics 1 14 made of plastic. By injection molding, monoliths can be produced inexpensively in large quantities.
  • FIG. 2 shows a schematic illustration of a light module 100 according to an exemplary embodiment.
  • the light module 100 corresponds to the light module described with reference to FIG. 1, with the difference that the light module shown has an optical element 230.
  • the optical element 230 is arranged both in the input-side section 1 16 of the beam path and in the output-side section 1 18 of the beam path.
  • a corresponding optical element is arranged only in the input-side section 1 1 6 of the beam path or only in the output-side section 1 18 of the beam path.
  • a corresponding first optical element in the input-side portion 1 1 6 of the beam path and a corresponding second optical element in the output-side portion 1 1 8 of the beam path is arranged.
  • the corresponding optical element or its functionality is integrated into the input optics 110 or the output optics 14.
  • FIG. 3 thus shows a simplified representation of the light beam path, as already shown with reference to FIG. 1, in which, however, the suitable optical element is arranged for optimizing the light beam profile, which extends both into the beam path of the projection optics 1 1 2 and /. or the imaging optics, in front of the exit optics 1 14, can be located.
  • the optical element 230 is arranged in the form of a field lens so that it is located in both beam paths.
  • the beam path is specifically influenced. So z. B. by a suitable field lens, the pupil of the illumination or the entrance optics on the pupil of the exit optics 1 14 are mapped. As a result, the size of the exit optics 14 can be kept small without losing light or radiation intensities.
  • an optional control device 232 is shown, which is designed to provide a control signal 234 for controlling the projection optical system 1 1 2 to an interface to the projection optical system 1 1 2.
  • the controller 232 is configured, for example, to provide the control signal 234 using a digital image so that the mirror 122 is moved so that an image corresponding to the digital image is modulated into the light beam 120 and thus an image corresponding to the digital image Light distribution 108 is displayed.
  • the control device 232 has an interface to an environment detection device 236.
  • the surroundings detection device 236 is designed to monitor an environment of the light module 100, in particular an area to which the light distribution 088 is directed.
  • the surroundings detection device 236 is designed to recognize a person approaching the area and to provide an environment signal 238 via an interface to the control device 232 in response to the recognition of the approaching person.
  • the controller 232 is configured to provide the control signal 234 using the environmental gating 238.
  • the control device 232 is designed to select a digital image that is modulated onto the light beam 120, depending on the environment signal 238.
  • the surroundings detection device 236 may be part of the light module 100, part of the emission device or may be located separately from the emission device.
  • FIG. 3 shows a schematic representation of an exit optics 1 14 according to an embodiment.
  • This can be an exit optics 14 for a light module, as shown in FIG. 1 or 2.
  • the exit optics 1 14 is a projection optics 1 1 2 downstream, as described for example with reference to Figure 1.
  • the exit optics 14 comprises an optical monolith 340, which has a first aspherical surface 342, a second aspherical surface 344 and a freeform surface 346.
  • FIG. 3 shows the exit optics 1 14 from the monolith 340 consisting of a PMMA lens with two aspheric surfaces 342, 344 and the one free-form surface 346.
  • the surface 342 is realized as an entry surface in the form of a further free-form surface, and additionally or alternatively, the surface 344 is realized as an exit surface in the form of a further free-form surface.
  • Figure 4 shows a schematic representation of an exit optics 1 14 according to an embodiment.
  • This can be an exit optics 14 for a light module, as shown in FIG. 1 or 2.
  • the exit optics 1 14 is a projection optics 1 1 2 downstream, as described for example with reference to Figure 1.
  • the exit lens 1 14 comprises an optical monolith 340, which has a first aspheric surface 342, a second aspherical surface 344, a first free-form surface 346 and a second free-form surface 446.
  • the exit lens 1 14 is formed according to an embodiment of the monolith 340, which consists of a PMMA lens with two aspheric surfaces 342, 344 and two free-form surfaces 346, 446.
  • the exit optics 14 includes a monolithic objective in the form of the monolith 340 as a central component.
  • a basic body of the monolith 340 consists of a refractive component which has a plurality of functional surfaces 342, 344, 346, 446.
  • functional surfaces 342, 344, 346, 446 In the example given here are four functional surfaces 342, 344, 346, 446.
  • the first refractive surface 342 the light is coupled into the monolith 340 before it is reflected at the surfaces 346, 446. Finally, the light is coupled out through the second refractive surface 344.
  • a system with high imaging quality can be designed.
  • the area between the light source 102 and the projection optical system 12 is also referred to as the illumination path, and the area adjoining the projection optical system 1 1 2 and encompassing the monoliths 340 is also referred to as the imaging path.
  • the light 106 can be imaged using the optical monolith 340 in the form of the light distribution 108.
  • FIG. 5 shows a schematic representation of an emission device 500 in the form of a street lamp according to one exemplary embodiment.
  • the emitting device 500 has a light module 100, which is also referred to as a projection module.
  • the light module 100 is configured to emit a light distribution 108 by which a beam imprint 508 is projected onto a surface 560.
  • the emitter 500 further includes a first light module 562 and a second light module 564 that are configured to illuminate at least one portion of the surface 560 adjacent the beam imprint 508.
  • the lighting modules 562, 564 may also be referred to as lighting modules or lighting units.
  • the light modules 562, 564 can each have a light source, the light of which is emitted directly, ie without projection optics and optionally without exit optics, from the emission device 500.
  • FIG. 5 thus shows an example of a street lamp in which a light module 100 for projecting an image in the form of the beam imprint 508 and at least one light module 562, 564 are integrated.
  • Combined lighting and light modules can also be implemented in one unit, which are connected to one another via at least one control device in the form of a control unit, for example a motion control, a light control, a projection surface observation, etc., be managed.
  • the lighting modules 562, 564 can be designed to be switched on and off, which illuminate the surface 560 to be illuminated.
  • the light module 1 00 can be configured to be switched on and off in order to project images and / or information onto the surface 560.
  • the light module 1 00 can mark or also temporarily connect times to a projection surface onto which the light distribution 108 is projected by the beam imprint 508 as a pedestrian crossing in the dark, or to switch it on as needed.
  • Colored representations of the beamprint 508, e.g. B. for green phases are feasible.
  • Such applications e.g. In warehouses for projecting hazards (e.g., approaching forklift behind a shelf), such information can be projected into another hallway. In this case, both symbols or colored designs can be realized.
  • suitable optical elements such as the described with reference to Figure 2 optical element 230, a minimization of the sizes of the projection optics possible.
  • movable design of the light module 100 and / or the light module 562, 564 for example, rotatable, tiltable, pivotable, or possibly the entire or of parts of the radiator 500 in the form of a light system can be placed on very limited projection surfaces very targeted illustrations and / or information , This may be necessary, for example, to illuminate the path or an area for a person or group of people.
  • a signal is transmitted to the light module 100 via an environment detection device, for example via a camera or a light barrier, which temporarily illuminates or projects onto a defined surface or a specific path section through at least one control device.
  • a plurality of radiation sources or projection systems that is to say for example a plurality of light modules 100, to be coupled to one another in order thus to project optimal illumination or targeted information.
  • the described approach can generally be used in a luminaire, a traffic light, a floor lamp or a stadium lamp.
  • a lighting device can be realized with at least one light module 100, which are suitable for example for use in vehicle headlights, tail lights, or for displays in the interior of a vehicle or interior lighting.
  • the projection device of the light module may also be used for an optical unit, such as a street lamp, for projecting information in the form of images or lettering on a surface, such as a lane of a road.
  • an optical unit such as a street lamp
  • targeted information can be transmitted to a driver or to a pedestrian, such as the temporary projecting of a pedestrian crossing onto a lane, or the coloring of the crosswalk in traffic light colors, or hazard warnings, speed limits or other traffic information or guidance.
  • a light distribution as it is understood as a light distribution generated according to relevant standards, according to standards of UN / ECE regulations in the states of the European Union or relevant standards in the other world regions, between the entrance optics and the exit optics at least one Projection technology arranged.
  • This projection technique implemented by projection optics is a technique in which images are generated by modulating a digital image onto a light beam.
  • FIG. 6 shows schematic illustrations of different uses of an emission device 500 according to one exemplary embodiment.
  • the emitter 500 each has a light module, as described with reference to the preceding figures.
  • the emission device 500 may be used in conjunction with a headlight 601, a rear light 603, an interior light 605, a display 607 of a vehicle 609, a street light 61 1 of a traffic light 613, or also a hall light, stadium light, machine light or
  • Engine room interior light can be used.
  • the emitter 500 may additionally be combined with an optical unit having at least one Fresnel optical system.
  • an optical unit having at least one Fresnel optical system on the light input side and at least one associated optical unit of aspherical lens / s is installed behind the emission device 500, not illustrated in the figures.
  • the optical units ideally form a compact unit.
  • the aspherical lens (s) is / are preferably designed in a honeycomb design, for example with definable hexagonal optics / lenses. This makes it possible for the information and / or images to be projected to be additionally modified. Thus, both the size of the images and color intensities can be changed or filter functions can be performed.
  • the edges of the projections are sharpened.
  • a control unit allows these functionalities to be specifically adapted to and adapted to the requirements and external circumstances, such as the provision of projection surfaces, weather effects, stray light effects.

Abstract

L'invention concerne un module d'éclairage (100) destiné à un dispositif d'émission de lumière et comprenant au moins une source lumineuse (102) ainsi qu'au moins un dispositif de projection (112) qui est conçu pour représenter sous la forme d'au moins une distribution lumineuse (108) de la lumière (106) sortant de la source lumineuse (102) dans une zone placée devant le dispositif d'émission de lumière. Le dispositif de projection (104) présente une optique d'entrée (110), une optique de projection (112) et une optique de sortie (114), l'optique de projection (112) étant réalisée et agencée sur un chemin optique entre l'optique d'entrée (110) et l'optique de sortie (114) pour moduler un rayonnement lumineux (120). L'optique d'entrée (110) et/ou l'optique de sortie (114) comprennent un monolithe optique présentant au moins une surface de forme libre.
EP18735531.8A 2017-06-23 2018-06-22 Module d'éclairage pour dispositif d'émission de lumière, dispositif d'émission de lumière et utilisation d'un monolithe optique Withdrawn EP3642658A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102017210606 2017-06-23
DE102018002211 2018-03-15
PCT/EP2018/066728 WO2018234531A1 (fr) 2017-06-23 2018-06-22 Module d'éclairage pour dispositif d'émission de lumière, dispositif d'émission de lumière et utilisation d'un monolithe optique

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EP3642658A1 true EP3642658A1 (fr) 2020-04-29

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EP (1) EP3642658A1 (fr)
CN (1) CN110945402A (fr)
DE (1) DE102018115045A1 (fr)
WO (1) WO2018234531A1 (fr)

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Publication number Priority date Publication date Assignee Title
WO2020114631A1 (fr) 2018-12-07 2020-06-11 HELLA GmbH & Co. KGaA Dispositif d'éclairage pour un véhicule à moteur
CN110267418B (zh) * 2019-06-17 2023-12-26 浙江大邦科技有限公司 基于智慧路灯的投影系统和控制方法
DE102019118264A1 (de) 2019-07-05 2021-01-07 HELLA GmbH & Co. KGaA Beleuchtungsvorrichtung für ein Kraftfahrzeug, insbesondere hochauflösender Scheinwerfer
EP3971470B1 (fr) * 2020-09-16 2024-03-06 ZKW Group GmbH Phare de véhicule haute résolution

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JP4348409B2 (ja) * 2001-02-27 2009-10-21 ドルビー ラボラトリーズ ライセンシング コーポレイション 高ダイナミック・レンジ表示装置
US6798583B1 (en) * 2003-04-11 2004-09-28 Olympus Corporation Projection optical apparatus
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US7619825B1 (en) * 2004-09-27 2009-11-17 Rockwell Collins, Inc. Compact head up display with wide viewing angle
CN202419429U (zh) * 2012-01-16 2012-09-05 安徽师范大学 基于数字微镜元件的自适应汽车前照灯装置
JP6114653B2 (ja) * 2013-07-16 2017-04-12 株式会社小糸製作所 車両用灯具
JP6632220B2 (ja) * 2015-05-21 2020-01-22 株式会社小糸製作所 灯具ユニット
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CN110945402A (zh) 2020-03-31
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