WO2023118506A1 - Procédé mis en œuvre par ordinateur permettant la conception d'une unité optique pour un luminaire et procédé de production associé - Google Patents

Procédé mis en œuvre par ordinateur permettant la conception d'une unité optique pour un luminaire et procédé de production associé Download PDF

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Publication number
WO2023118506A1
WO2023118506A1 PCT/EP2022/087611 EP2022087611W WO2023118506A1 WO 2023118506 A1 WO2023118506 A1 WO 2023118506A1 EP 2022087611 W EP2022087611 W EP 2022087611W WO 2023118506 A1 WO2023118506 A1 WO 2023118506A1
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WIPO (PCT)
Prior art keywords
optical
optical matrix
luminaire
models
matrix models
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Application number
PCT/EP2022/087611
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English (en)
Inventor
Paul BAWIN
Benoit KERFF
Roxane CAPRARA
Paul SMETS
Original Assignee
Schreder S.A.
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Publication date
Application filed by Schreder S.A. filed Critical Schreder S.A.
Publication of WO2023118506A1 publication Critical patent/WO2023118506A1/fr

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Classifications

    • 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
    • F21V14/06—Controlling the distribution of the light emitted by adjustment of elements by movement of refractors
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/002—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with provision for interchangeability, i.e. component parts being especially adapted to be replaced by another part with the same or a different function
    • 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
    • F21V5/007—Array of lenses or refractors for a cluster of light sources, e.g. for arrangement of multiple light sources in one plane
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/005—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with keying means, i.e. for enabling the assembling of component parts in distinctive positions, e.g. for preventing wrong mounting
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/101—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening permanently, e.g. welding, gluing or riveting
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
    • F21V17/164—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting the parts being subjected to bending, e.g. snap joints
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2113/00—Combination of light sources
    • F21Y2113/10—Combination of light sources of different colours
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • luminaire a computer program and system therefor, as well as an associated production method for producing said optical unit.
  • Methods to design optical unit are readily available and typically comprise the filling out of an extensive list of parameters, optical and geometrical parameters for example, in order to determine the best suited theoretical design of the optical unit for a given lighting site.
  • the list of parameters is usually provided manually by a user of a computer-implemented method using a database of all existing luminaires/optical units. These parameters reflect the optical considerations and the installation possibilities of the lighting site. The user can then iteratively play with the parameters to find out which existing optical unit would best fit his needs.
  • Obtaining such an optical unit design is a time-consuming operation and the computer-implemented method is typically not user- friendly for the non-initiated user.
  • none of the existing optical units may be suitable for the intended use, leading to the expensive design of a complete new optical unit.
  • the object of embodiments of the invention is to provide a computer-implemented method allowing for a cost-effective design and a modulable optical unit for a luminaire.
  • a computer-implemented method for designing an optical unit for a luminaire comprises one or more optical matrices.
  • An optical matrix comprises one or more optical elements.
  • the method comprises the steps of: receiving data related to a desired light distribution for the optical unit, providing a database comprising a plurality of optical matrix models, each optical matrix model being associated with an optical matrix and comprising at least one light distribution of that optical matrix for at least one predetermined orientation, and preferably an indication of further possible orientations, using the database and the received data, determining at least one set of one or more optical matrix models amongst the plurality of optical matrix models for designing the optical unit.
  • the design of an optical unit for the desired light distribution can be determined at the level of the optical matrices, which improves the overall modularity of the optical unit.
  • the use of a database of optical matrix models taking into account the orientations of the optical matrices increases the number of potential light distributions to be obtained with existing optical matrices, offering thus more possibilities of design. In this way, costs associated with designing an optical unit can be reduced by reusing existing optical matrices but rearranged as new sets. This allows optical matrices to be used for a wider range of applications. Alternatively, for a given application, the cheapest luminaire with an adequate set of one or more optical matrices may be determined.
  • at least one set of one or more optical matrix models amongst the plurality of matrix models may be determined which may meet or approach the desired light distribution.
  • the optical matrices may be regarded as the building blocks available for building the optical unit, and providing the optical properties of an optical unit.
  • An optical matrix may comprise one or more optical elements and may be regarded as a physical sub-element of an optical unit.
  • An optical matrix model is a model of the optical matrix.
  • the orientation of an optical matrix refers to an orientation of that optical matrix within the luminaire, more in particular with respect to a predetermined direction of the luminaire head. For example, when an optical matrix is nonrotation symmetrical, the optical matrix may be oriented in a luminaire such that an axis of symmetry thereof is substantially parallel or substantially perpendicular to a street direction.
  • a set of optical matrix models preferably includes the orientation of each optical matrix associated with the optical matrix models.
  • the light distribution typically comprises an intensity distribution, i.e. the distribution of the luminous intensity (expressed in candela, cd; or lumen/steradian, Im/sr) as a function of the emission direction of the light leaving the luminaire.
  • the intensity distribution is contained within a spatial envelope of the emitted light.
  • Each optical matrix model typically defines an intensity distribution associated with the corresponding optical matrix.
  • the set of one or more intensity distributions contained in respective one or more optical matrix models and associated with respective one or more optical matrices will then result in a combined light distribution of the optical unit.
  • the light distribution may also comprise a light colour temperature distribution of the light emitted by the optical matrix.
  • the colour will be defined by the LEDs used and not by the optical matrices.
  • the optical unit is typically arranged above a substrate on which the light sources, e.g the LEDs, are arranged.
  • determining at least one set of one or more optical matrix models comprises selecting for each set one or more optical matrix models, and determining for each selected optical matrix model how many optical matrix models need to be included in said set. In this way, sets of different optical matrix models may be determined. By mixing different optical matrix models, a large variety of light distributions can be achieved, increasing thus the modularity of the design.
  • determining at least one set of one or more optical matrix models comprises: determining a plurality of sets of one or more optical matrix models from the plurality of optical matrix models of the database, simulating the optical behavior of said plurality of sets of one or more optical matrix models, selecting at least one set which simulated behavior meets the data related to the desired light distribution with a predetermined tolerance.
  • the method performs calculations for multiple sets of optical matrix models in parallel, limiting the burden of an iterative process, increasing thus the user-friendliness of the design.
  • simulating the optical behavior is meant producing a computer model of the optical behavior.
  • the computer model calculated approaches a model associated with the desired light distribution on at least one criteria with said predetermined tolerance.
  • the method further comprises receiving a number of optical elements to be used in the optical unit.
  • the number of optical elements to be used in the optical unit is a physical constraint, which may be related among others to a type of luminaire, or a size of a luminaire housing. It is noted that the number of optical elements to be used in the optical unit may be the same as the number of light sources, for instance LEDs, used in the the luminaire or may be different in cases where multiple light sources, for instances LEDs, notably LEDs of different colors or color temperatures, are arranged under an optical element.
  • determining a plurality of sets of optical matrix models from the plurality of optical matrix models of the database comprises determining all possible sets of one or more optical matrix models matching the received number of optical elements in the optical unit. In this way, the user may limit the possible sets of optical matrix models to meet the physical constraints of the number of optical elements to be used.
  • selecting at least one set of optical matrix models meeting the data related to the desired light distribution with a predetermined tolerance comprises:
  • flux associated with a set is meant the minimum light flux necessary to match the data related to the desired light distribution using that set of one or more optical matrix models. In this way, the most efficient set of optical matrix models can be retrieved, to further improve the reduction of costs when designing a luminaire for a given application. Additionally using the flux as criteria for optimization helps reducing the number of solutions presented to a user to improve his experience. It is noted that a flux is measured in lumen, while a light distribution is measured in candela /lumen. In practice an optical matrix model comprises a light distribution associated with an optical matrix and one orientation of that optical matrix.
  • a theoretical light distribution for that set may be obtained based on the database of optical matrix models, from which a minimum light flux for that set may be derived in order to match the received data related to the desired light distribution. For instance for a set of a single optical matrix, the light distribution of that set is equivalent to the light distribution of the single optical matrix.
  • the data related to the desired light distribution is for instance an illuminance of a lighting norm (in candela per square meters) and at least one installation characteristic of a lighting site (related to physical dimension in meters for instance)
  • a minimum flux (in lumen) necessary with the light distribution (in candela/lumen) of that single optical to match this data can be derived.
  • the method further comprises, using the database and the received data, determining orientations for the one or more optical matrix models of the at least one set of one or more optical matrix models. In this way, a set of optical matrix models with each its respective orientation can be determined, to further increase the modularity of the design.
  • determining orientations for one or more optical matrix model of the least one set comprises determining a rotation around a first axis and/or a tilt around a second axis different form the first axis of each optical matrix model.
  • determining the orientations of the matrix models of the least one set may comprise determining the relative positions of the matrix models with respect to each other.
  • the orientation of each optical matrix model may be taken into account when designing the optical unit. For example, in this way an optical unit with a plurality of optical matrices may be obtained, wherein the optical matrices are oriented according to different orientations within the luminaire. By allowing to have different orientations the combined light distribution of the optical unit may be further optimized.
  • orientation may be selected using an optical element or optical plate that may be movable and/or the control of the light elements may be selective.
  • movable optics are disclosed in patent applications WO2019134875A1, W02020136202A1, W02020136200A1, W02020136205A1, W02020136203A1, W02020136204A1, WO2020136197A1, and
  • WO2020136196A1 in the name of the applicant, which are included herein by reference.
  • Examples of selective control of light elements are disclosed in patent applications W02019020366A1, WO2020165284A1, WO2020173836A1, and WO2021130275A1 in the name of the applicant, which are included herein by reference.
  • Further apparatus with controllable light distributions, as a way to modify the orientation, are disclosed in PCT application WO 19/020366 Al in the name of the applicant, which is included herein by reference.
  • receiving data related to a desired light distribution for the optical unit comprises receiving any one or more of the following: at least one luminaire installation characteristic, a lighting regulation, a desired light distribution.
  • a lighting site may be characterized by installation characteristics and/or lighting norms.
  • a lighting norm may contain normative values for illuminance, uniformity, glaring index among others. From these parameters, a desired light distribution may be derived.
  • the desired light distribution may represent the desired light distribution on the ground in the vicinity of the luminaire and/or the desired 3D light distribution of the luminaire around the luminaire.
  • a desired light distribution can be a theoretical value originated from photometry studies or it can be the measured light distribution of an existing luminaire to be used as reference.
  • the luminaire installation characteristic comprises any one or more of the following: a pathway width, an interval distance between two neighboring luminaire base supports, a pathway surface material, pathway surface optical properties, a height of a luminaire head of the at least one luminaire, a number of lanes of the pathway, one or more circulation directions of the pathway, a lateral distance between the pathway and the at least one luminaire base support, a lateral dimension of a hard shoulder of the pathway, an arrangement pattern of a group of luminaires including the at least one luminaire along the pathway, a bracket length of the luminaire head of the at least one luminaire, an inclination of the luminaire head of the at least one luminaire, a presence of a base support for a luminaire, a location of the base support respective to the one or more circulation directions, a proximity with a neighboring building, characteristics of the neighboring building, a number of luminaire heads per base support, a presence of a conflict zone in the lighting site, a type of the pathway.
  • receiving data related to a desired light distribution for the optical unit further comprises receiving at least one additional parameter, preferably at least one additional parameter from any of the following: a luminaire family, an installation budget, a power consumption per kilometer, a number of luminaires to be installed, a maximum wattage of the at least one luminaire to be installed, an aesthetical consideration, a type of light source, a glaring index, a luminaire managing option, a number of parts of a luminaire design, a lighting uniformity, a lighting intensity, an average illuminance, a total cost of ownership, a lifetime, a method of installation, an operating temperature, a recycling factor, a certificate, a commercial brand, an electrical connection type, a secondary functionality of the luminaire, a dimension of the optical unit, a type of accessory.
  • a luminaire family an installation budget, a power consumption per kilometer, a number of luminaires to be installed, a maximum wattage of the at least one luminaire to be installed, an aesthetical consideration, a
  • the following steps are performed: selecting from the database one or more optical matrix models containing the received number of optical elements to be used, simulating the optical behavior of the selected one or more optical matrix models, if the results of at least one simulation of the selected one or more optical matrix models meet the data related to the desired light distribution with optionally a predetermined tolerance, selecting the optical matrix model associated with that simulation for designing the optical unit, otherwise, selecting from the selected database one or more sets of preferably identical optical matrix models, wherein the received number of optical elements is a multiple of the number of optical elements of the optical matrix model of each set (for example, when the received number of optical elements is sixteen, and two sorts of matrices exist with eight optical elements, namely matrix A and matrix B, than the different sets of optical matrix models that may be chosen are preferably (A, A), (B,B), but also may be (A,B), (B,A), and further sets based on the different orientations of each A, B.
  • each optical matric model within a set comprising elements optical elements, wherein within each set the optical matrix models are preferably identical such that two (preferably identical) matrix models of each eight optical elements constitute a set), simulating the optical behavior of the selected one or more sets of preferably identical matrix models, if the results of at least one simulation of the selected one or more sets meet the data related to the desired light distribution with optionally a predetermined tolerance, selecting that set of preferably identical optical matrix models for designing the optical unit.
  • an iterative process may be chosen for designing the luminaire, starting with the most standard option and progressively increasing the modularity of the design.
  • a progressive design allows an easy interaction with a non-specialist user, increasing the user-friendliness.
  • costs may also be mitigated. It is noted that the orientations of preferably identical optical matrix models of a set do not need necessarily to be the same.
  • selecting one or more sets of preferably identical optical matrix models comprises iteratively selecting sets of preferably identical optical matrix models containing per optical matrix model a lower number of optical elements than during the previous iteration(for example, when the received number of optical elements is sixteen, and matrices with eight optical elements did not work, then select the following sets as follows for instance: if two sorts of matrices exist with four optical elements, namely matrix C and matrix D, than the different sets of optical matrix models that may be chosen are preferably (C,C, C,C), (D,D,D,D), but also (C,C,C,D), (C,C,D,D) and further variations of four combinations of C and D as well as further sets based on the different orientations of each C and D may be envisaged.
  • each optical model comprises four optical elements and wherein within each set the optical matrix models are preferably identical such that four (preferably identical) matrix models of each four optical elements constitute a set.).
  • the design may progressively become more complex, using progressively larger sets of smaller optical matrix models.
  • the method further comprises the following steps: Otherwise, optionally, selecting one or more accessories, simulating the optical behavior of a set of preferably identical optical matrix models including the one or more accessories,
  • accessories may first be added to obtain the desired light distribution before considering mixing optical matrices in a more complex manner.
  • Accessories may be regarded as mechanical part added to an optical element to modify the light distribution associated with that optical element.
  • one or more other accessories may be provided to the optical matrix, such as reflectors, backlights, prisms, collimators, diffusors, anti -reflection coatings and the like.
  • there may be associated a backlight element with some optical elements or with each optical element of the plurality of optical matrix.
  • those one or more accessories may be formed integrally with the optical matrix.
  • those one or more accessories may be mounted to/on/around the optical matrix via e.g. releasable fastening elements. It is noted that accessories may further be oriented/tilted as an additional step.
  • one or more further optical elements may be further provided such as one or more light shielding structures complying with different glare classifications, e.g. the G classification defined according to the CIE115:2010 standard and the G* classification defined according to the EN13201-2 standard.
  • the light shielding structures may be configured for reducing a solid angle of light beams of the light emitting elements by cutting off or reflecting light rays having a large incident angle, thereby reducing the light intensities at large angles and improving the G/G* classification of the luminaire system.
  • the one or more light shielding structures may be mounted on any one of one or more optical elements, one or more optical matrices, the optical unit or the substrate on which the light sources are arranged by screwing, locking, clamping, clipping, gluing, welding or a combination thereof.
  • the one or more light shielding structures may be integrally formed with any one of one or more optical elements, one or more optical matrices or the optical unit, for example by 3D printing or molding.
  • the light shielding structures may comprise one or more closed reflective barrier walls, each having an interior bottom edge disposed on a flat portion of tthe optical unit, an interior top edge at a height above said flat portion, and a reflective surface connecting the interior bottom edge and the interior top edge and surrounding one or more associated optical elements of the optical unit.
  • the light shielding structures may comprise a plurality of reflective barriers, each comprising a base surface disposed on a flat portion of an optical unit, a top edge at a height above said base surface, and a first reflective sloping surface connecting the base surface and the top edge and facing one or more associated optical elements of an optical unit.
  • Exemplary embodiments of shielding structures are disclosed in patent application WO 2020/249684 Al in the name of the applicant which is included herein by reference.
  • Other exemplary embodiments of shielding structures are disclosed in patent application WO 2020/058282 Al in the name of the applicant, which is included herein by reference.
  • Further examples of louver elements are disclosed in PCT patent application WO 2021/186058 Al in the name of the applicant, which is included herein by reference.
  • a spacer layer may be disposed between the substrate and the one or more optical elements. The spacer layer is provided with one or more holes through which one or more light emitting elements of a light source extend. Examples of spacer layers are disclosed in Dutch patent application N2025166 in the name of the applicant, which is included herein by reference.
  • an optical element or optical unit may be movable and/or the control of the light elements may be selective.
  • movable optics are disclosed in patent applications WO2019134875A1, W02020136202A1, W02020136200A1, W02020136205 Al, W02020136203A1, W02020136204A1, WO2020136197A1, and WO2020136196A1 in the name of the applicant, which are included herein by reference.
  • selective control of light elements are disclosed in patent applications W02019020366A1, WO2020165284A1, WO2020173836A1, and WO2021130275A1 in the name of the applicant, which are included herein by reference.
  • the database further comprises associated with each optical matrix model a number of molding inserts available for producing by molding the optical matrix associated with that optical matrix model, and wherein determining at least one set of one or more optical matrix models amongst the plurality of optical matrix models for designing the optical unit further comprises excluding sets of one or more optical matrix models incompatible with a number of available molding inserts.
  • the computer program comprises instructions which, when the program is executed by a computer, cause the computer to carry out the method for designing an optical unit as hereinabove described.
  • a computer-controlled system for implementing the computer-implemented method of any of the above claims, the system comprising: data input means adapted to receive data related to a desired light distribution for the optical unit from a user, a memory configured to store a database comprising a plurality of optical matrix models, a display, a processor coupled the data input means, the memory and the display, configured for performing the steps of any of the above claims, and outputting the at least one set of optical matrix models to the user via the display.
  • a method for producing an optical unit further comprising generating or collecting at least one set of one or more optical matrices corresponding with the determined at least one set of one or more optical matrix models.
  • a user may use the results of the computer-implemented method of the above embodiments to obtain the at least one set of one or more optical matrix models and subsequently generate or collect at least one set of one or more optical matrices corresponding with the determined at least one set of one or more optical matrix models.
  • the production method may be (partially) performed by a machine.
  • generating or collecting at least one set of one or more optical matrices comprises collecting one or more optical matrices associated with the determined at least one set of optical matrix models from a stock of available optical matrices, the method further comprising forming the optical unit with the collected optical matrices.
  • the method may further comprise collecting one or more accessories. It is noted that matrices and accessories may be produced from moulding or by 3D printing.
  • the method further comprises collecting a frame for holding the collected one or more optical matrices from a stock of available frames and wherein forming the optical unit with the collected one or more optical matrices comprises connecting together the collected one or more optical matrices and the collected frame.
  • the use of a frame and optical matrices improves the modularity of the design of the optical unit since a frame may be used for multiple types of designs.
  • the method may further comprise connecting one or more accessories. The accessories may be connected on the frame and/or on the optical matrices.
  • connecting together the collected one or more optical matrices and the collected frame comprises placing the collected one or more optical matrices on the collected frame according to determined orientations of the one or more optical matrix models.
  • connecting the collected one or more optical matrices on the collected frame further comprises attaching the collected optical matrices on said frame by any one of the following methods: welding, gluing, snap-fitting.
  • the optical unit may be integrally molded but may also be assembled by fixing optical matrices or optical elements in a frame or by fixing optical elements and/or optical matrices to each other, e.g. using a dovetail mechanism.
  • the fixing in a frame may be done e.g. by any one or more of the following methods: welding, a heat and/or pressure treatment, a snap-fit mechanism, etc. Suitable assembly methods are disclosed in PCT application WO 2022/023441 Al and WO 2020/136197 Al in the name of the applicant, which are included herein by reference.
  • generating/collecting at least one set of one or more optical matrices comprises generating by molding the optical unit using the molding inserts associated with the determined at least one set of one or more optical matrix models.
  • new optical units may be created reusing existing molding inserts in a cost-effective manner. A large variety of optical units may thus be produced at low cost.
  • the method may comprise a step integrating molding parts for molding accessories in the molding system.
  • generating/collecting at least one set of one or more optical matrices further comprises selecting at least one frame from a plurality of frames configured to receive the molding inserts associated with the determined at least one set of optical matrix models.
  • a frame may further be specifically configured to receive specific molding inserts. In this way, errors related to the selection of molding inserts may be avoided.
  • generating/collecting at least one set of one or more optical matrices further comprises placing the optical matrix molding inserts in the selected frame according to the determined orientations of the one or more optical matrix models of the at least one set of one or more optical matrix models.
  • a frame may be specifically configured to receive molding inserts oriented with a given direction. In this way, errors related to the orientation of molding inserts may be avoided.
  • the optical elements are lens elements.
  • a lens may include any transmissive optical element that focuses or disperses light by means of refraction. It may also include any one of the following: a reflective portion, a backlight portion, a prismatic portion, a collimator portion, a diffusor portion.
  • a lens may have a lens portion with a concave or convex surface facing a light source, or more generally a lens portion with a flat or curved surface facing the light source, and optionally a collimator portion integrally formed with said lens portion, said collimator portion being configured for collimating light transmitted through said lens portion.
  • a lens may be provided with a reflective portion or surface, referred to as a backlight element in the context of the invention, or with a diffusive portion.
  • a lens of the plurality of lenses may comprise a lens portion having an outer surface and an inner surface facing the associated light source.
  • the outer surface may be a convex or planar surface and the inner surface may be a concave or planar surface.
  • a lens may comprise multiple lens portions adjoined in a discontinuous manner, wherein each lens portion may have a convex or planar outer surface and a concave or planar inner surface, or a deformable surface.
  • Suitable lenses are disclosed in PCT application WO 2019/061879A1 and W02020/025427 in the name of the applicant, which are included herein by reference.
  • lenses are not limited to rotation-symmetric lenses such as hemispherical lenses, or to ellipsoidal lenses having a major symmetry plane and a minor symmetry plane, although such rotation- symmetric lenses could be used.
  • rotation-symmetric lenses such as hemispherical lenses
  • ellipsoidal lenses having a major symmetry plane and a minor symmetry plane
  • lenses with no symmetry plane or symmetry axis could be envisaged.
  • an optical matrix is any one or a combination of the following: an individual optical element, a row of identical optical elements, a row of different optical elements, an array of identical optical elements, an array of different optical elements.
  • FIG. 1A and IB illustrate schematically a luminaire head with an optical unit which may be designed using the exemplary method according to an embodiment.
  • Figures 2A-2E illustrate examples of optical matrices for use in an exemplary method according to an embodiment.
  • Figures 3A and 3B illustrate different installations configurations for a luminaire and their effect on the associated light distributions of the luminaire.
  • Figure 4 illustrates the steps of an exemplary method according to an embodiment.
  • Figure 5 illustrates the steps of an exemplary method according to another embodiment.
  • Figure 6 illustrates a computer-controlled system for implementing the computer-implemented method of the embodiments of Figures 4 and 5.
  • Figure 7 shows possible results obtained with an exemplary method according to an embodiment, for a family of luminaires.
  • Figures 8A and 8B show exploded perspective views of a molding system for molding an optical unit according to an exemplary production method according to an embodiment.
  • Figure 8C shows a side view of the molding system of Figures 8 A and 8B.
  • Figure 9 illustrates an embodiment where an optical unit is obtained by molding using a set of molding inserts, as illustrated in Figures 8A-8C, determined according to an exemplary method according to an embodiment.
  • Figure 10 illustrates an embodiment where an optical unit is obtained by assembling a set of optical matrices mold separately, the set being determined according to an exemplary method according to an embodiment.
  • Figures 1A and IB illustrate schematically a luminaire head with an optical unit which may be designed using the exemplary method according to an embodiment.
  • FIG. 1A shows a luminaire 10 comprising a luminaire head 30 on a pole 20. Inside the luminaire head 30, there is provided an optical unit 40 positioned over light sources, preferably LED lights, to provide a predetermined light distribution. The optical characteristics of the optical unit influence the light distribution created by the light sources.
  • light sources preferably LED lights
  • the optical unit 40 may be a lens plate comprising a plurality of optical elements 60, in particular optical lenses, arranged in a plurality of rows 51-54 of optical elements 60 and a frame 70 for holding the optical elements 60 and affixing the optical unit 40 to the rest of the luminaire head 30.
  • Figures 2A-2E illustrate examples of optical matrices for use in an exemplary method according to an embodiment.
  • manufacturers may maintain a database comprising a plurality of optical matrix models Mj, j being an integer higher than one, each optical matrix model Mj being associated with an optical matrix 80j, and comprising at least one light distribution of that optical matrix 80j for at least one predetermined orientation, and an indication of further possible orientations. It is noted that the indication may well contain the information that no other orientations are envisaged.
  • an optical matrix model Mi associated with an optical matrix 80i as shown in Figure 2A may comprise a light distribution of that optical matrix 80i for an orientation of zero degrees, and an indication that the optical matrix 80i may also be used in a second orientation, in which for instance the optical matrix is turned by 180 degrees around an axis perpendicular to the plane of the optical matrix 80i.
  • a separate optical matrix model Mj may be created for each orientation of each optical matrix 80k.
  • the optical matrices 80j may be regarded as the building blocks available for building the optical properties of an optical unit 40.
  • An optical matrix 80j may comprise one or more optical elements 60 and may be regarded as a physical sub-element of an optical unit 40.
  • An optical matrix 80j may be any one or a combination of the following: an individual optical element 60 as illustrated in Figure 2C, a row of identical optical elements 60 as illustrated in Figure 2B, a row of different optical elements 60, an array of identical optical elements 60 as illustrated in Figures 2D and 2E, an array of different optical elements 60 as illustrated in Figure 2A.
  • Figures 2D and 2E illustrate how an optical matrix 8O4 may have more than one orientation.
  • the frame 70 may be used as a reference point on the optical matrix 8O4 to locate a privileged direction of lighting, illustrated by an arrow in the Figures 2D and 2E.
  • the orientations of an optical matrix 80j may be related to a rotation around a first axis and/or a tilt around a second axis different form the first axis of each optical matrix.
  • the optical matrix 8O4 of Figure 2E is rotated 180 degrees with respect to the optical unit 40b of Figure 2D around an axis A perpendicular to the plane of the optical matrix 8O4.
  • a model M4 may be stored in the database associated with the optical matrix 8O4, the model M4 comprising a light distribution of that optical matrix 8O4 in the orientation of zero degrees as shown in Figure 2D, and an indication that an orientation of 180 degrees is also possible for that optical matrix 8O4.
  • multiples models for each orientation of each optical matrix may be stored in the database.
  • Figures 3A and 3B illustrate different installations configurations for a luminaire and their effect on the associated light distributions of the luminaire.
  • a desired light distribution may be derived from an installation configuration comprising luminaire installation characteristics related to the lighting site.
  • a luminaire installation characteristic may correspond to an optical characteristic of the environment of the lighting site to be illuminated, and/or to dimensions relevant for the installation of a luminaire.
  • the lighting site corresponds to the location for installing a luminaire 10, comprising at least one luminaire head 30, optionally combined with an associated luminaire head bracket, on a base support 10 of the lighting site, e.g. a luminaire pole.
  • Figure 3A illustrates how a first light distribution DA may be derived from a first installation configuration ConfigA, corresponding to lighting site with two pedestrian sidewalks and two vehicle lanes with given dimensions
  • Figure 3B illustrates how a second light distribution DB may be derived from a second installation configuration ConfigB, corresponding to lighting site with only two vehicles’ lanes with given dimensions.
  • the lighting site may correspond to any space to be illuminated with a location for installing at least one luminaire.
  • the lighting site typically comprises a pathway that can be taken by vehicles and/or pedestrians.
  • the pathway may be a pathway on a lighting site suitable for outdoor luminaires.
  • lighting site for outdoor luminaires it is meant roads, tunnels, industrial plants, stadiums, airports, harbors, rail stations, campuses, parks, cycle paths, pedestrian paths, or pedestrian zones for example, and outdoor luminaires can be used notably for the lighting of an outdoor area, such as roads and residential areas in the public domain, private parking areas and access roads to private building infrastructures, etc.
  • the pathway may be located indoors, such as in a warehouse or an industry hall.
  • receiving data related to a desired light distribution may thus amount to receiving at least one luminaire installation characteristic and/or a lighting regulation.
  • the at least one luminaire installation characteristic and/or a lighting regulation may be received from a user via input means, for instance via a keyboard, a touchscreen or a mouse, or extracted from other input data.
  • the installation characteristic may comprise any one or more of the following: a pathway width, an interval distance between two neighboring luminaire base supports, a pathway surface material, pathway surface optical properties, a height of a luminaire head of the at least one luminaire, a number of lanes of the pathway, one or more circulation directions of the pathway, a lateral distance between the pathway and the at least one luminaire base support, a lateral dimension of a hard shoulder of the pathway, an arrangement pattern of a group of luminaires including the at least one luminaire along the pathway, a bracket length of the luminaire head of the at least one luminaire, an inclination of the luminaire head of the at least one luminaire, a presence of a base support for a luminaire, a location of the base support respective to the one or more circulation directions, a proximity with a neighboring building, characteristics of the neighboring building, a number of luminaire heads per base support, a presence of a conflict zone in the lighting site, a type of the pathway.
  • the conflict zone may be defined as a
  • a lighting regulation may be a public road lighting standard or recommendations such as EN 13201, EN 13032, IES RP-8, CIE 115, CIE 140 respective to the environment of the lighting site, thereby allowing for an illumination giving a visibility above a predetermined level for users of the lighting site, as well as giving a predetermined illumination safety, e.g., illumination intensity below a blinding intensity, light emitted within a certain arc to avoid glaring angles, illuminance and uniformity among others.
  • a predetermined illumination safety e.g., illumination intensity below a blinding intensity, light emitted within a certain arc to avoid glaring angles, illuminance and uniformity among others.
  • a regulation database which may be a nation-wide database, a region-wide database, a city-wide database, or a local-wide database.
  • the obtaining of the lighting regulation may be based on the geo-coordinates of the lighting site. Additionally or alternatively, the obtaining of the lighting regulation may be at least partially based on the extracted installation characteristic, e.g., the number of lanes of the pathway. In an embodiment, the obtaining of the lighting regulation may be followed by a manual correction or confirmation of the lighting regulation associated to the lighting site.
  • the obtaining of the lighting regulation may be achieved by a manual entry.
  • receiving data related to a desired light distribution for the optical unit may further comprise receiving at least one additional parameter, in particular at least one additional parameter from any of the following: a luminaire family, an installation budget, a power consumption per kilometer, a number of luminaires to be installed, a maximum wattage of the at least one luminaire to be installed, an aesthetical consideration, a type of light source, a glaring index, a luminaire managing option, a number of parts of a luminaire design, a lighting uniformity, a lighting intensity, an average illuminance, a total cost of ownership, a lifetime, a method of installation, an operating temperature, a recycling factor, a certificate, a commercial brand, an electrical connection type, a secondary functionality of the luminaire, a dimension of the optical unit, a type of accessory.
  • a luminaire family an installation budget, a power consumption per kilometer, a number of luminaires to be installed, a maximum wattage of the at least one luminaire to be installed, an aesthetical consideration,
  • Figure 4 illustrates the steps of an exemplary method according to an embodiment.
  • a computer-implemented method for designing an optical unit for a luminaire of an embodiment may comprise:
  • step 402 providing a database comprising a plurality of optical matrix models, each optical matrix model being associated with an optical matrix and comprising at least one light distribution of that optical matrix for at least one predetermined orientation, and an indication of further possible orientations
  • step 403 for using the database and the received data, determining at least one set of one or more optical matrix models amongst the plurality of optical matrix models for designing the optical unit.
  • determining at least one set of one or more optical matrix models comprises selecting for each set one or more optical matrix models, and determining for each optical matrix model how many optical matrix models need to be included in said set.
  • the method may further comprise receiving a number of optical elements to be used in the optical unit.
  • a user may input the number of light sources to be used in the luminaire 10 and thus the number of optical elements 60 to be used in the optical unit 40.
  • This physical constraints may be related to an additional parameter from any of the following : a luminaire family, an installation budget, a power consumption per kilometer, a number of luminaires to be installed, a maximum wattage of the at least one luminaire to be installed, an aesthetical consideration, a type of light source, a glaring index, a luminaire managing option, a number of parts of a luminaire design, a lighting uniformity, a lighting intensity, an average illuminance, a total cost of ownership, a lifetime, a method of installation, an operating temperature, a recycling factor, a certificate, a commercial brand, an electrical connection type, a secondary functionality of the luminaire, a dimension of the optical unit, a type of accessory.
  • step 403 may comprise the following steps:
  • the optical matrix model associated with that simulation for designing the optical unit is selected from the selected database one or more sets of identical optical matrix models, wherein the received number of optical elements is a multiple of the number of optical elements of the optical matric model of each set, simulating the optical behavior of the selected one or more sets of identical matrix models, If the results of at least one simulation of the selected one or more sets meet the desired light distribution with optionally a predetermined tolerance, selecting that set of identical optical matrix models for designing the optical unit.
  • orientations of identical optical matrix models of a set do not need necessarily to be the same.
  • step 403 may then comprise: optionally, selecting one or more accessories, simulating the optical behavior of a set of identical optical matrix models including the one or more accessories, optionally, if the results of the simulation meet the data related to the desired light distribution with optionally a predetermined tolerance, selecting that set of identical optical matrix models and accessories,
  • steps 403 may then further operate according to Figure 5 illustrating the steps of an exemplary method according to another embodiment.
  • the method of Figure 5 may comprise: step 501 : providing a database as in step 402 step 502: receiving data related to a desired light distribution as in step 401. step 503: determining a plurality of sets of one or more optical matrix models from the plurality of optical matrix models of the database, step 504: simulating the optical behavior of said plurality of sets of one or more optical matrix models, and step 505: selecting at least one set of one or more optical matrix models meeting the data related to the desired light distribution, optionally with a predetermined tolerance.
  • steps 501 and 502, respectively 401, 402 may be performed in any order, depending on user preferences.
  • the method may provide a request to update the database triggering the addition of at least one new optical matrix model, derived from the closest set.
  • Step 501 may comprise accessing a locally stored database or one or more databases available on servers of luminaire producers, to obtain optical matrix models of optical matrices from one or more producers.
  • a model of an optical matrix may contain all optical characteristics of that optical matrix necessary for simulating the optical behavior of that optical matrix in terms of light distribution in any installation configuration.
  • Step 502 may further comprise receiving the number of optical elements to be used in the optical unit.
  • the number of optical elements to be used in the optical unit may be a physical constraint and may be related among others to a type of luminaire, or a size of a luminaire housing. In this way, the user may limit the possible sets of one or more optical matrix models to meet other physical constraints of the optical unit design.
  • Step 502 may then comprise determining all possible sets of one or more optical matrix models matching the received number of optical elements in the optical unit.
  • Step 504 may further comprise:
  • simulated flux of a set is meant the minimum light flux necessary to obtain the desired light distribution using that set of optical matrix models. In this way, the most efficient set of optical matrix models can be retrieved.
  • the flux may be used as criteria for optimization to help reduce the number of solutions presented to a user to improve his experience.
  • the method may further comprise, using the database and the received data, determining orientations of the one or more optical matrix models of the at least one set of one or more optical matrix models.
  • determining orientations of the matrix models of the least one set may comprise determining a rotation around a first axis and/or a tilt around a second axis different form the first axis of each optical matrix model.
  • Figure 6 illustrates a computer-controlled system for implementing the computer-implemented methods of the embodiments of the present invention, in particular as illustrate din Figures 4 and 5.
  • the system 600 may comprise data input means 601 adapted to receive data related to a desired light distribution for the optical unit, a memory 602 configured to store a database comprising a plurality of optical matrix models, a display 604, and a processor 603 coupled the data input means 601, the memory 602 and the display 604.
  • the processor 603 is configured for performing the steps of the computer- implemented method of the previous embodiments and outputting the at least one set of one or more optical matrix models Mj amongst the plurality of optical matrix models Mj for designing the optical unit 40 to a user via the display 604.
  • Figure 7 shows possible results obtained with an exemplary method according to an embodiment, for a family of luminaires.
  • Using the computer-implemented method of the previous embodiments it is for instance possible to design multiple optical units 40A-40D for a family of luminaires A-D to be installed for a large project covering a plurality of different lighting sites, like for instance a highway with tunnels, bridges, four lanes’ sections, tollgates etc.
  • the optical units 40A-40D are modular combinations of one or more optical matrices 80A-80F depending on the lighting site associated which each sort of luminaire.
  • the computer-implemented method may enable to reuse existing optical matrices like optical matrix 80A of optical unit 40A in combination with other existing optical matrices 80B-80F, to build up a whole range of lighting solutions depending on the needs of the project.
  • Figures 8A-8C deal with molding consideration which may be taken into account in the computer-implemented method according to another embodiment.
  • the database of Figures 4-6 may further comprise, associated with each optical matrix model, a number of molding inserts available for producing by molding the optical matrix associated with a respective optical matrix model.
  • Step 403 of the computer-implemented method for designing an optical unit of Figure 4 may then further comprise excluding sets of one or more optical matrix models incompatible with the available molding inserts. For example, should the computer-implemented method determine that a set of a given number, x, of identical optical matrix models would meet the data related to the desired light distribution, but the database contains the information that there is not enough molding inserts available, i.e.
  • a first method for producing an optical unit comprising the method of any of the previous embodiments. After determining using the exemplary computer-controlled method a determined at least one set of optical matrix models, a production method may comprise generating/collecting at least one set of one or more optical matrices by molding the optical unit using molding inserts associated with the determined at least one set of one or more optical matrix models.
  • Figures 8A and 8B show exploded perspective views of a molding system for molding an optical unit with four rows of five optical elements (similar to the optical matrix disclosed in Figures 2D and 2E).
  • Figure 8C shows a side view of the molding system of Figures 8 A and 8B.
  • the molding system may comprise a plurality of molding inserts 90 and 95 comprising a plurality of female molding inserts 90 (only one, element 90z associated with a theoretical optical matrix 80z is represented), a plurality of male molding inserts 95 (only one, element 95 associated with the theoretical optical matrix 80jis represented), a first frame 100 for receiving the plurality of female molding inserts 90 and a second frame 105 for receiving the plurality of female molding inserts 90.
  • the male and female molding inserts 90z and 952 would, if taken in isolation, form together a mold to produce by molding an optical matrix 8O2 using known molding techniques.
  • an optical matrix 8O2 comprising a row of five identical optical lenses/lenses has been represented.
  • a different number/arrangement of optical elements may be envisaged by a skilled person without departing from the concept behind the invention.
  • the optical unit produced in this manner may then be an integral element in which material is molded in between the male/female molding inserts 90 and 95 and the frames 1001 and 105 to form a single optical unit plate.
  • the frame 100 and the molding inserts 90 may represent a female side of a mold, while the frame 105 and the molding inserts 95 may represent a male side of a mold. Between the female and male sides of such a mold, molding material may be injected to obtain by molding an optical unit.
  • Figure 8D shows an enlarged view of a frame 105 for receiving a plurality of male molding inserts 95, like for instance the molding insert 952.
  • the frames 100, respectively 105 may be specific to a set of molding inserts 90, respectively 95, and a stock of available frames may be at the disposition of a user.
  • a frame 105 may comprise guiding elements 110 and 120 meant to interact with the molding insert 952 when inserted in a given orientation. The guiding elements 110 and 120 may avoid that a user may insert the molding insert 952 in a orientation not intended with respect to the frame 105.
  • the position and number of guiding elements 110, 120 may be specific to a set of molding inserts 95 associated with a set of optical matrices 80, associated in turn with a determined set of one or more optical matrix models M obtained according to the previous exemplary method.
  • the frame 105 may further comprise a recess 130 for inserting a molding insert (not represented) for labelling the final optical unit. Similar considerations concerning guiding elements and labelling options, may apply to the other frame 100 for receiving the female molding inserts 90.
  • the molding inserts 95, or 90 may optionally comprise a labelling area for labelling the associated optical matrix.
  • Figure 9 illustrates an embodiment where an optical unit is produced by molding using a set of molding inserts determined according to an exemplary method according to an embodiment.
  • the optical unit 40A of Figure 9 may be produced by molding using the molding inserts 90, 95 and frame parts 100 and 105 as illustrated in Figures 8A-8D.
  • the optical unit 40A may have been produced using a molding system comprising three types of male/female molding inserts 90, 95 (one type for the two male/female molding inserts in the center of the array, two different types of male/female molding inserts on the sides of the array).
  • the frames 100 and 105 may then be configured to guide the molding inserts 90, 95 to insure the correct orientation of the optical elements.
  • accessories may also be taken into account when molding the optical unit by inserting additional molding parts for molding said accessories.
  • a second method for producing an optical unit comprising the method of any of the previous embodiments.
  • a production method may comprise collecting a plurality of optical matrices associated with the determined at least one set of optical matrix models from a stock of available optical matrices and forming the optical unit with the collected optical matrices.
  • Figure 10 illustrates an embodiment where an optical unit 40B is produced by assembling a set of one or more optical matrices 80 mold separately, the set being determined according to an exemplary method according to any of the previous embodiments.
  • a production method may comprise collecting at least one set of optical matrices 80 2 corresponding with the determined at least one set of optical matrix models M 2 from a stock of available optical matrices 80 and forming the optical unit 40B with the collected optical matrices 80 2 .
  • the production method may further comprise collecting a frame 70B for holding the collected optical matrices 80 2 from a stock of available frames 70.
  • Forming the optical unit 40B with the collected optical matrices 80 may comprise connecting together the collected optical matrices 80z and the collected frame 70B.
  • Connecting together the collected optical matrices 80z and the collected frame 70B may comprise placing the collected optical matrices 80z on the collected frame 70B according to determined orientations of the one or more optical matrix models M2.
  • Connecting the collected optical matrices 8O2 on the collected frame 70B may further comprise attaching the collected optical matrices SOjon said frame 70B by any one of the following methods: welding, gluing, snap-fitting or any other known suitable technique.
  • collected optical matrices 80 may be attached directly to a printed circuit board holding the light sources.
  • the collected optical matrices 80 may be attached together by known techniques. During the production, additional steps may include attaching accessories to the collected optical matrices 80 to the optical matrices and/or the frame.

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Abstract

Procédé mis en œuvre par ordinateur pour concevoir une unité optique pour au moins un luminaire, ladite unité optique comprenant une ou plusieurs matrices optiques, une matrice optique comprenant un ou plusieurs éléments optiques, le procédé comprenant les étapes consistant (401) à recevoir des données relatives à une distribution de lumière souhaitée pour l'unité optique, (402) à fournir une base de données comprenant une pluralité de modèles de matrice optique, chaque modèle de matrice optique étant associé à une matrice optique et comprenant au moins une distribution de lumière de cette matrice optique pour au moins une orientation prédéterminée, et une indication d'autres orientations possibles, (403) au moyen de la base de données et des données reçues, à déterminer au moins un ensemble d'un ou de plusieurs modèles de matrice optique parmi la pluralité de modèles de matrice optique pour concevoir l'unité optique.
PCT/EP2022/087611 2021-12-22 2022-12-22 Procédé mis en œuvre par ordinateur permettant la conception d'une unité optique pour un luminaire et procédé de production associé WO2023118506A1 (fr)

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