WO2015054797A1 - Light field projectors and methods - Google Patents

Light field projectors and methods Download PDF

Info

Publication number
WO2015054797A1
WO2015054797A1 PCT/CA2014/051013 CA2014051013W WO2015054797A1 WO 2015054797 A1 WO2015054797 A1 WO 2015054797A1 CA 2014051013 W CA2014051013 W CA 2014051013W WO 2015054797 A1 WO2015054797 A1 WO 2015054797A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
phase modulator
display apparatus
areas
image
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.)
Ceased
Application number
PCT/CA2014/051013
Other languages
English (en)
French (fr)
Inventor
Gerwin Damberg
Anders Ballestad
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.)
MTT Innovation Inc
Original Assignee
MTT Innovation Inc
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 MTT Innovation Inc filed Critical MTT Innovation Inc
Priority to CA2884903A priority Critical patent/CA2884903C/en
Priority to EP21214505.6A priority patent/EP4009626A1/en
Priority to EP14854627.8A priority patent/EP3058722B1/en
Priority to US15/030,799 priority patent/US10477170B2/en
Priority to CN201480064480.6A priority patent/CN105993166B/zh
Priority to JP2016525963A priority patent/JP6634012B2/ja
Publication of WO2015054797A1 publication Critical patent/WO2015054797A1/en
Anticipated expiration legal-status Critical
Priority to US16/107,442 priority patent/US12160690B2/en
Priority to US18/921,815 priority patent/US20250047819A1/en
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • H04N9/315—Modulator illumination systems
    • H04N9/3152—Modulator illumination systems for shaping the light beam
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/0808—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more diffracting elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/0816—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/0875—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more refracting elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/10—Scanning systems
    • G02B26/101—Scanning systems with both horizontal and vertical deflecting means, e.g. raster or XY scanners
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0012—Optical design, e.g. procedures, algorithms, optimisation routines
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • G02B27/0905—Dividing and/or superposing multiple light beams
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • G02B27/0927—Systems for changing the beam intensity distribution, e.g. Gaussian to top-hat
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/22—Processes or apparatus for obtaining an optical image from holograms
    • G03H1/2294—Addressing the hologram to an active spatial light modulator
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3102—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators
    • H04N9/3111—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators for displaying the colours sequentially, e.g. by using sequentially activated light sources
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3102—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators
    • H04N9/312—Driving therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3129—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] scanning a light beam on the display screen
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3129—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] scanning a light beam on the display screen
    • H04N9/3132—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] scanning a light beam on the display screen using one-dimensional electronic spatial light modulators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • H04N9/315—Modulator illumination systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • H04N9/315—Modulator illumination systems
    • H04N9/3161—Modulator illumination systems using laser light sources
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/0816—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements
    • G02B26/0825—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements the reflecting element being a flexible sheet or membrane, e.g. for varying the focus
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/30—Collimators
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2203/00—Function characteristic
    • G02F2203/12—Function characteristic spatial light modulator
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2203/00—Function characteristic
    • G02F2203/50—Phase-only modulation
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2225/00—Active addressable light modulator
    • G03H2225/30—Modulation
    • G03H2225/32—Phase only
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/001—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background
    • G09G3/002—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background to project the image of a two-dimensional display, such as an array of light emitting or modulating elements or a CRT

Definitions

  • This invention relates to light projectors. Some embodiments may be applied to project images for viewing. Other embodiments may be applied to create structured light for illumination or other purposes. Embodiments have example application in markets such as digital cinema, TV and home theater, portable and personal projection (military, mobile, etc.), indoor and outdoor personal and large screen advertising and information dissemination, signs/advertising/billboards/outdoor advertising, large- venue and live performance, medical imaging, virtual reality, computer gaming, office presentations and collaborative work, head-up displays in cars and other vehicles, smart illumination such as adaptive car head-lights, theatre spotlights, security/architectural lighting, high contrast planetarium projectors, indoor and outdoor general illumination systems, street-lighting, road-lighting, aviation lighting systems, and high-contrast simulation displays such as flight simulators
  • This invention relates to systems that re-distribute light dynamically from a single or multiple light sources in order to achieve a desired light field (which may or may not comprise an image depending on the application) efficiently.
  • Re-distribution of light involves taking light from one area within a light field and directing the light to another area within the light field.
  • Some embodiments provide a controllable illumination system that can be used as a component in any of a wide range of lighting applications.
  • Other aspects of the invention provide methods for creating light fields and light projectors which apply such methods.
  • a light field projection system comprises a data processor, a computer software program, one or more light sources and a light control mechanism that includes one or more dynamically-addressable optical elements.
  • the light control mechanism may also include one or more static optical elements such as lenses, mirrors, gaps, optical fibers, light guides and the like in an optical path.
  • the software program when executed by the processor may process data specifying one or more desired target light fields (which may, for example, comprise anything from desired headlight patterns to image frames in a movie) and may cause the one or more dynamically-addressable optical elements to redirect light to achieve the desired light fields.
  • Figure 1 is a block diagram of an example system (light efficient illuminator) at a high level.
  • Figure 3 is a block diagram detailing the components within the light module which is a component of the light efficient illuminator shown in Figure 2.
  • Figure 13 shows example optics of another variable laser scanning approach (with dynamically focusable lenses or other optics).
  • Figure 14 is an example of an optical switch using MEMS (micro
  • Figure 17 shows example optics of a system including a refinement module. It also depicts example light profiles at the output of the light efficient illuminator and at the input of the imaging device (e.g. SLM).
  • the imaging device e.g. SLM
  • Figure 19 shows example optics of a system including a clean-up stage and a refinement stage. It also depicts example light profiles at each stage.
  • Figure 1 illustrates schematically an example system for generating a light field according to an example embodiment.
  • the system is configured to receive data describing a target light field and to produce an output light field that closely matches the desired target light field by redirecting light.
  • the output light field may require further optical or other treatment to produce the desired target output light field.
  • Such treatment may be provided by one or more refinement stages as described herein.
  • the system does this in an optically efficient manner, in which little light is wasted.
  • the system includes one or more light generators (light sources) that can be operated to create light.
  • the system operates the light generators to output light and then redirects the light to provide the output light field.
  • the output of the light generators may be controlled to match the amount of output light to the amount of light required for the output light field. Most of the light generated by the light generator(s) may end up in the output light field.
  • Figure 2 depicts an example dynamic light-efficient illuminator in more detail.
  • a program is executed on a data processor.
  • the program receives data describing the target light field and computes a light redistribution scheme to be applied by a dynamically- addressable light re-distributor.
  • the program also computes data describing the intensities for one or more light sources that generate light supplied to the light redistributor.
  • the data processor receives data describing the intensity for the light source(s) and produces a control signal for the power regulator that in turn controls the amount and/or timing of power distributed to each light source.
  • the power regulator may include a plurality of separate outputs and/or may include a plurality of independent power regulation circuits.
  • Each light source may emit light of different shapes, intensities and profiles.
  • An example light profile produced by a light source could be a uniform, rectangular intensity profile which could be produced using integrating rods or other optics.
  • Another example of a light profile has a Gaussian or sum of Gaussians intensity profile.
  • Another example is an array of rectangular uniform profiles (blocks) with different intensities.
  • the light profile produced by the light module can take any desired shape.
  • the light from the light source(s) is then coupled to the input of the light redistributor.
  • the coupling may involve spatially combining light from a plurality of light sources and/or shaping the light optically to yield light having the desired light profile for input to the dynamically-addressable light redistributor.
  • the light combination and beam shaping may be done using common optical elements such as beam-splitters, polarizers, wave plates, multi-layer thin films, beam-combiners, micro-lens arrays, lenses, apertures and/or mirrors. These elements can be optimized for the nature of the light emitted by the light sources (e.g. narrow-band or broad-band light sources).
  • light from a plurality of light sources is coupled into a common optical fibre and at the output of the fiber the light is collimated using a set of lenses.
  • one or more light sources LS 1 to LSn are coupled into one or more optical fibres 408, for example using focusing lenses 409.
  • 405 shows an example light profile of the ⁇ ⁇ light source.
  • the combined output from the optical fibres 408 are relayed onto the dynamically-addressable light redistributor 407, for example using relay lens system 400, comprising, for example, two focusing lenses 401 and 402.
  • the combined effect of the two lenses 401 and 402 in 400 may be to asymmetrically magnify the output profile from the optical fibres 408.
  • 403 shows two example plots: at top the combined intensity across one spatial dimension of 407 and at bottom contours of the light profile present on 407 in two dimensions.
  • FIG. 5 schematically illustrates one type of dynamically-addressable light redistributor.
  • the dynamically-addressable light redistributor comprises receiving optics, and a dynamically-addressable focusing element.
  • modules capable of yielding a wide range of output light fields is advantageous as such modules may be optimized for optical efficiency and may be applied in any of a wide range of applications as described above.
  • Apparatus according to the invention may also be integrated directly into projectors, displays, lights etc. Explanation of how to use a phase modulator to create a desired light field, description of basic arrangement.
  • a metric may determine when the current solution is ready to be applied to drive a PMD. After this occurs, the program may continue iterating to find a better solution. As better solutions are obtained they may be applied to drive the PMD. In an example embodiment, after a set number of iterations (e.g. 3, 4, 10, a few iterations) the current best phase pattern solution may be applied to the PMD while the computer/algorithm continues to calculate better solutions. After another few iterations a new (and better) solution may be available and can be addressed on the PMD. All this can happen within fractions of a frame of a video.
  • a set number of iterations e.g. 3, 4, 10, a few iterations
  • the method of Figure 10 creates an approximation of the full target light field using a number of component light fields that may be added together.
  • Examples of such components may be rectangular shaped uniform light fields or Gaussian light fields.
  • 1105 is configured in such a way as to produce an approximation of a desired target light field at 1107, for example at a projection screen.
  • Figure 12 shows an example of variable scanning optics in which two laser beams or other light beams collectively scan an area. This scheme may be expended to any suitable number of light beams. Each light beam scans a region within the area. By altering the sizes of the scanned regions the luminance within each region may be varied. The dimensions of the scanned regions may be changed, for example, the scanned regions may be rectangular and the lengths and widths of the scanned regions may be changed, thereby altering the areas of the scanned regions.
  • the scanning speed and pattern may remain fixed as the size and/or shape of a scanned region is changed or may be altered. For example, scanning speed may be reduced when the scanned region is smaller and increased when the scanned region is larger.
  • a plurality of light sources such as lasers LSI and LS2 are used in conjunction with for example steerable MEMS mirrors that allow the beams to be scanned across different areas.
  • LSI illuminates Area 1
  • LS2 illuminates Area 2.
  • LSI and LS2 illuminate the entire imaging area 1201.
  • an image data processor divides the image into equal area sections, each section being illuminated by one light source each with a modulated amplitude according the requirements of the individual areas.
  • the illumination comes in the form of a spot light source which is scanned across its subsection of the screen, for example using a laser and a mirror mounted on a rotational 2-axis mirror.
  • the illumination comes in the form of a line light source which is scanned across its subsection of the screen, for example using a laser and a mirrors mounted on a rotational 1 -axis mirror.
  • Figure 13 shows example variable laser scanning optics which is an alternative to the implementation depicted in Figure 12.
  • each light source is relayed onto a respective area not as a scanning beam, but as a complete field expanded using beam shaping and expansion optics.
  • Beam LSI is shaped and expanded using the asymmetric beam expander ABEL The expanded light profile is then steered using a two-axis scanning mirror 1302 onto Area 1 of the image.
  • LS2 is shaped and expanded using the asymmetric beam expander ABE2.
  • the expanded light profile is then steered using a two-axis scanning mirror 1301 onto Area 2 of the image.
  • Asymmetric beam expander ABE2 is explained in 1310 and 1320.
  • 1310 shows how the incident beam is expanded by different amounts in two perpendicular directions using the cylindrical lenses 1311 and 1312.
  • the input beam profile which may be in the form of a focused spot, will result in the output light profile being a square and uniform intensity beam.
  • one or both of the cylindrical lenses 1311 or 1312 may be moved by for example a motor along the optical axis of this system. Moving 1311 will change the square shape 1321 into shape 1322. Likewise, moving 1312 will change the square shape 1323 into shape 1324. If both lenses 1311 and 1312 are moved, the output light profile may be as depicted in 1325.
  • the output light profiles from ABE1 and ABE2 may be steered by 1301 and 1302 so that their combined illumination from 1300 and 1303 fills the complete image.
  • 1522 shows the output light profile from integration rods IRl and IR2.
  • the average intensity of 1525 is approximately that of the average intensity of 1523.
  • the average intensity of 1526 is approximately that of the average intensity of 1524 combined or integrated.
  • the refined output light- field may be imaged or relayed onto a projection screen or the like in the usual manner.
  • a light-efficient illuminator may be combined with one or several refinement modules which may be arranged in serial and/or parallel configurations.
  • Another use of the refinement module is to minimize visual artifacts introduced by the light efficient illuminator.
  • these improvements may be executed in accordance with analysis of the light efficient illuminator output as well as models of the human visual system such as colour appearance models, visual difference predictors or other models.
  • the dynamic light efficient illuminator provides a first low quality version of the target light field, for example low spatial resolution colour image, as input to the refinement module.
  • the refinement module may comprise a single spatial amplitude modulator of high spatial resolution relative to the colour image and provide luminance modulation only.
  • the combined output may be different from the target light field in an absolute sense, but perceptually comparable.
  • the output light field be of high fidelity, uniformity, or predictability.
  • an output light field may include undesirable sharp spikes or other optical noise not specified for the target light field.
  • One could reduce these issues by providing an array of homogenizing elements such as an array of independent integrating rods or a bundle of fibers or a number of optical waveguides between the illuminator and the refinement module.
  • the spatially-varying output light- field is then reduced to a number of known intensity profile regions matching the number of homogenizing elements (e.g. fibers or integrating rods) used.
  • Figure 19 depicts an example implementation of a light-efficient illuminator combined with a clean-up module and a refinement module.
  • the output of the light- efficient illuminator 1900 is relayed using for example a lens 1901 onto an array of integration rods 1902, IR1, IR2, IR3 and IR4.
  • the output 1903 of the array of integration rods is further relayed onto 1905 using for example a lens 1904.
  • 1905 represents the refinement module, for example in the form of an amplitude-modulating SLM.
  • the output of 1905 is relayed onto for example a projection screen 1912 using for example a lens 1911.
  • An example output light-field from 1900 is depicted in 1907.
  • Such stages may be arranged to process light in a serial or parallel fashion, or a mix thereof.
  • different light fields can be combined by a beam-splitter or beam-combiner, for example a dichroic mirror in order to combine light of different frequencies, or a polarizing beam-splitter in order to combine light with different polarizations.
  • the output of one stage is used as the input for the next stage.
  • one system can use a frequency modulator in parallel with a phase modulator, both of which are placed in series with a spatial amplitude modulator.
  • the two parallel stages can be combined by a beam-combiner before they are relayed onto the spatial amplitude modulator which is placed in series with the parallel stage.
  • the total amount of light for each color within one video frame in a color field sequential drive scheme can either be modulated at the source by reducing the intensity of individual light sources over a fixed period of time as depicted in 2000, or by a fixed intensity over varying amounts of time as depicted in 2020 or by a combination of these two schemes, not depicted here.
  • 2000 the intensity modulating approach is depicted for red by 2001, green by 2002 and blue by 2003.
  • 2020 the time modulating approach is depicted for red by 2021, green by 2022 and blue by 2023.
  • the invention may also be provided in the form of a program product.
  • the program product may comprise any non-transitory medium which carries a set of computer-readable instructions which, when executed by a data processor, cause the data processor to execute a method of the invention.
  • Program products according to the invention may be in any of a wide variety of forms.
  • the program product may comprise, for example, non-transitory media such as magnetic data storage media including floppy diskettes, hard disk drives, optical data storage media including CD ROMs, DVDs, electronic data storage media including ROMs, flash RAM, EPROMs, hardwired or preprogrammed chips (e.g., EEPROM semiconductor chips), nanotechnology memory, or the like.
  • the computer-readable signals on the program product may optionally be compressed or encrypted.
  • the invention may be implemented in software.
  • "software” includes any instructions executed on a processor, and may include (but is not limited to) firmware, resident software, microcode, and the like. Both processing hardware and software may be centralized or distributed (or a combination thereof), in whole or in part, as known to those skilled in the art. For example, software and other modules may be accessible via local memory, via a network, via a browser or other application in a distributed computing context, or via other means suitable for the purposes described above.

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Projection Apparatus (AREA)
  • Liquid Crystal (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Mechanical Optical Scanning Systems (AREA)
  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
PCT/CA2014/051013 2013-10-20 2014-10-20 Light field projectors and methods Ceased WO2015054797A1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
CA2884903A CA2884903C (en) 2013-10-20 2014-10-20 Light field projectors and methods
EP21214505.6A EP4009626A1 (en) 2013-10-20 2014-10-20 Light field projectors and methods
EP14854627.8A EP3058722B1 (en) 2013-10-20 2014-10-20 Light field projectors and methods
US15/030,799 US10477170B2 (en) 2013-10-20 2014-10-20 Phase modulator redirecting incident light from darker areas to lighter areas of images
CN201480064480.6A CN105993166B (zh) 2013-10-20 2014-10-20 光场投影装置及方法
JP2016525963A JP6634012B2 (ja) 2013-10-20 2014-10-20 光照射野プロジェクタおよび方法
US16/107,442 US12160690B2 (en) 2013-10-20 2018-08-21 Light field projectors and methods for redistributing light dynamically to achieve a light field
US18/921,815 US20250047819A1 (en) 2013-10-20 2024-10-21 Light field projectors and methods for redistributing light dynamically to achieve a light field

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201361893270P 2013-10-20 2013-10-20
US61/893,270 2013-10-20

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US15/030,799 A-371-Of-International US10477170B2 (en) 2013-10-20 2014-10-20 Phase modulator redirecting incident light from darker areas to lighter areas of images
US16/107,442 Continuation US12160690B2 (en) 2013-10-20 2018-08-21 Light field projectors and methods for redistributing light dynamically to achieve a light field

Publications (1)

Publication Number Publication Date
WO2015054797A1 true WO2015054797A1 (en) 2015-04-23

Family

ID=52827511

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA2014/051013 Ceased WO2015054797A1 (en) 2013-10-20 2014-10-20 Light field projectors and methods

Country Status (6)

Country Link
US (3) US10477170B2 (enExample)
EP (2) EP4009626A1 (enExample)
JP (3) JP6634012B2 (enExample)
CN (2) CN110286484A (enExample)
CA (5) CA2890560C (enExample)
WO (1) WO2015054797A1 (enExample)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105425517A (zh) * 2015-12-29 2016-03-23 济南金永大传媒科技有限公司 一种实现智能芯片可拆卸的投影机
WO2016179542A1 (en) * 2015-05-06 2016-11-10 Dolby Laboratories Licensing Corporation Thermal compensation in image projection
WO2017059537A1 (en) * 2015-10-06 2017-04-13 Mtt Innovation Incorporated Projection systems and methods
WO2017095789A1 (en) * 2015-12-02 2017-06-08 Abl Ip Holding Llc Projection and/or waveguide arrangements for a software configurable lighting device
US9874319B2 (en) 2014-08-14 2018-01-23 Mtt Innovation Incorporated Multiple-laser light source
CN108492239A (zh) * 2018-03-19 2018-09-04 北京工业大学 一种面向光场相机的结构化观测与稀疏表示的协同优化方法
CN108679574A (zh) * 2018-06-14 2018-10-19 华域视觉科技(上海)有限公司 车灯及汽车
DE102017207350A1 (de) * 2017-05-02 2018-11-08 Volkswagen Aktiengesellschaft Scheinwerfersystem für ein Kraftfahrzeug
WO2018205036A1 (en) 2017-05-12 2018-11-15 Mtt Innovation Incorporated High brightness projection systems and methods
CN109073192A (zh) * 2016-03-17 2018-12-21 奥迪股份公司 具有至少一个前照灯的机动车
WO2019215202A1 (en) 2018-05-08 2019-11-14 Barco N.V. Closed loop driving of a highlighter type projector
US10531055B2 (en) 2016-09-30 2020-01-07 Dolby Laboratories Licensing Corporation Beam combining for highlight projection
WO2020173577A1 (en) 2019-02-28 2020-09-03 Barco N.V. Method and system for spatial and angular uniformization of light beams
WO2021072434A1 (en) * 2019-10-10 2021-04-15 Natus Medical Incorporated Eye-imaging system and apparatus
US11363242B2 (en) 2014-05-15 2022-06-14 Mtt Innovation Incorporated Optimizing drive schemes for multiple projector systems
WO2023161237A1 (en) 2022-02-22 2023-08-31 Barco N.V. Apparatus and methods for adjusting digital images
LU103067B1 (en) 2023-02-03 2024-08-05 Mtt Innovation Inc Systems and methods for light steering
US12160690B2 (en) 2013-10-20 2024-12-03 Mtt Innovation Incorporated Light field projectors and methods for redistributing light dynamically to achieve a light field
US12192684B2 (en) 2021-02-16 2025-01-07 Barco Visual Solutions, Inc. Patch correction for light steering projector
US12498631B2 (en) 2019-02-28 2025-12-16 Barco N.V. Method and system for spatial and angular uniformization of light beams

Families Citing this family (65)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2916836C (en) 2014-07-31 2017-12-12 Mtt Innovation Incorporated Numerical approaches for free-form lensing: area parameterization free-form lensing
CN107432061B (zh) * 2015-02-17 2020-02-21 飞利浦灯具控股公司 照明装置
US10636336B2 (en) * 2015-04-17 2020-04-28 Nvidia Corporation Mixed primary display with spatially modulated backlight
US10225529B2 (en) * 2015-07-17 2019-03-05 Nec Corporation Projection device using a spatial modulation element, projection method, and program storage medium
US10241569B2 (en) 2015-12-08 2019-03-26 Facebook Technologies, Llc Focus adjustment method for a virtual reality headset
US10445860B2 (en) 2015-12-08 2019-10-15 Facebook Technologies, Llc Autofocus virtual reality headset
JP6775943B2 (ja) * 2015-12-11 2020-10-28 キヤノンメディカルシステムズ株式会社 医用画像診断装置
CN109154767A (zh) * 2016-02-24 2019-01-04 鸿海精密工业股份有限公司 投影仪
US11106276B2 (en) * 2016-03-11 2021-08-31 Facebook Technologies, Llc Focus adjusting headset
US10379356B2 (en) 2016-04-07 2019-08-13 Facebook Technologies, Llc Accommodation based optical correction
US10429647B2 (en) 2016-06-10 2019-10-01 Facebook Technologies, Llc Focus adjusting virtual reality headset
CN108206902B (zh) * 2016-12-16 2020-09-22 深圳超多维科技有限公司 一种光场相机
CN108206901B (zh) * 2016-12-16 2020-09-22 深圳超多维科技有限公司 一种光场相机
CN110383145B (zh) 2017-02-03 2022-02-08 巴科股份有限公司 用于增强的图像投影的系统和方法
CN106939992A (zh) * 2017-05-14 2017-07-11 上海小糸车灯有限公司 一种基于pbs分光器的车灯系统
CN106969710B (zh) * 2017-05-26 2023-05-19 四川瑞丰锻造有限公司 便于检测的稳定型分光器
WO2018221025A1 (ja) * 2017-06-01 2018-12-06 富士フイルム株式会社 撮像装置、画像処理装置、撮像システム、画像処理方法、及び記録媒体
US10261181B2 (en) * 2017-06-20 2019-04-16 National Chung Shan Institute Of Science And Technology Laser radar system capable of active polarization
WO2019016813A1 (en) * 2017-07-19 2019-01-24 Lumus Ltd. LIQUID CRYSTAL LIGHTING ON SILICON VIA OPTICAL ELEMENT GUIDE OF LIGHT
ES2986400T3 (es) * 2017-09-25 2024-11-11 Dolby Laboratories Licensing Corp Sistema y método para visualizar imágenes de alta calidad en un sistema de proyección de modulación dual
CN110133790B (zh) * 2018-02-02 2020-07-31 福州京东方光电科技有限公司 一种背光模组及控制方法、穿戴设备
CN108594452A (zh) * 2018-03-14 2018-09-28 高世雄 一种消除衍射光学元件中心亮点的方法
CN110161795A (zh) * 2018-04-16 2019-08-23 苏州菱慧电子科技有限公司 一种基于投影映射的智能办公设备
US11675114B2 (en) * 2018-07-23 2023-06-13 Ii-Vi Delaware, Inc. Monolithic structured light projector
CN110750005B (zh) * 2018-07-23 2021-04-20 京东方科技集团股份有限公司 显示装置及其显示方法
GB2576029B (en) 2018-08-02 2021-03-03 Envisics Ltd Illumination system and method
WO2020045025A1 (ja) * 2018-08-31 2020-03-05 ソニー株式会社 照明装置、および表示装置
CN109188830B (zh) * 2018-09-30 2020-04-24 清华大学 基于复合调制方式的光场显示系统
CN109254410B (zh) * 2018-11-13 2023-10-10 深圳创维新世界科技有限公司 空间成像装置
CN109491189A (zh) * 2018-11-28 2019-03-19 北京华捷艾米科技有限公司 一种斑点投影模组
US10627577B1 (en) 2019-01-24 2020-04-21 X Development Llc Non-imaging lens assembly design for efficient power coupling from multimode fiber to small-area photodetectors
CN111505841B (zh) * 2019-01-31 2023-06-23 成都理想境界科技有限公司 一种激光调制方法、激光扫描装置及系统
WO2020166650A1 (ja) * 2019-02-15 2020-08-20 株式会社小糸製作所 車両用前照灯、及び車両用灯具
CN111610686A (zh) * 2019-02-22 2020-09-01 深圳光峰科技股份有限公司 光源系统、光源组件与显示设备及其控制方法
WO2020190313A1 (en) * 2019-03-20 2020-09-24 Ward Matthew E Mems-driven optical package with micro-led array
US12253715B2 (en) 2019-03-20 2025-03-18 Ward Matthew E MEMS-driven optical package with micro-LED array
DE102019118798A1 (de) * 2019-07-11 2021-01-14 Volkswagen Aktiengesellschaft Vorrichtung, scheinwerfer und verfahren zum erzeugen einer lichtverteilung
CN114556193B (zh) 2019-08-14 2024-05-24 阿瓦龙全息照相技术股份公司 光场投影仪装置
CN112468799B (zh) * 2019-09-06 2022-06-17 立景光电股份有限公司 立体全像显示系统
EP3836427B1 (en) * 2019-12-13 2025-04-16 Airbus Defence and Space GmbH Methods, systems and devices for free-space optical communications
CN211857087U (zh) * 2020-02-24 2020-11-03 宁波激智科技股份有限公司 一种减干涉准直膜
CN111240013A (zh) * 2020-03-08 2020-06-05 上海瑞立柯信息技术有限公司 一种光场调控系统及设计方法
CN113495405A (zh) * 2020-03-19 2021-10-12 深圳光峰科技股份有限公司 投影系统
DE102020109190A1 (de) * 2020-04-02 2021-10-07 Arnold & Richter Cine Technik Gmbh & Co. Betriebs Kg Scheinwerfersystem, Scheinwerfer, Optikkomponente hierfür und Verfahren zum Ermitteln einer räumlichen Lichtverteilung derselben
CN111540306B (zh) * 2020-04-23 2022-03-25 歌尔光学科技有限公司 显示方法、显示装置及计算机可读存储介质
CN114397756A (zh) * 2020-05-15 2022-04-26 华为技术有限公司 一种显示装置和显示系统
JP7529019B2 (ja) 2020-05-18 2024-08-06 ソニーグループ株式会社 照明装置、照明方法、プロジェクタ装置
CN115462183B (zh) * 2020-05-21 2025-11-28 索尼集团公司 图像显示装置、生成训练神经网络模型的方法和计算机程序
WO2021238678A1 (zh) * 2020-05-27 2021-12-02 杭州驭光光电科技有限公司 衍射光学元件、分区匀光投射系统、电子设备及设计方法
CN113747129B (zh) * 2020-05-28 2024-08-23 成都理想境界科技有限公司 一种延时矫正方法及扫描显示装置
CN111722513B (zh) * 2020-06-12 2021-07-30 北京邮电大学 基于频率分解的全息显示方法、系统、设备及存储介质
CN111610687A (zh) * 2020-07-03 2020-09-01 深微光电科技(深圳)有限公司 可加载标准接口工业镜头的低成本dlp投影光路结构及设备
CN111752001B (zh) * 2020-07-15 2022-07-29 武汉市威佳激光有限责任公司 基于声光偏转技术的动态可调环形光束的变换装置
CN114114675B (zh) * 2020-08-27 2024-02-06 成都理想境界科技有限公司 一种拼接式扫描投影装置及方法
US11317039B1 (en) * 2021-01-06 2022-04-26 Visera Technologies Company Limited Image-sensing device
CN113630591B (zh) * 2021-06-21 2024-01-30 上海师范大学 基于非对称加密的隐形涡旋结构光三维成像方法
US11576244B2 (en) * 2021-07-08 2023-02-07 Palo Alto Research Center Incorporated System and method for light field illuminator sheet-based dynamic lighting output
CN117651908A (zh) * 2021-07-21 2024-03-05 索尼集团公司 照明装置
CN115708123A (zh) * 2021-08-18 2023-02-21 深圳光峰科技股份有限公司 图像显示方法、装置、电子设备及存储介质
WO2023186324A1 (en) 2022-04-01 2023-10-05 Barco Nv Color projector with a beam-steered illumination and method for providing beam-steered illumination to a color projector
CN117389104A (zh) * 2022-07-05 2024-01-12 中强光电股份有限公司 投影装置
CN115409190B (zh) * 2022-08-29 2024-10-01 华翊博奥(北京)量子科技有限公司 一种寻址操控系统及量子计算机
JP2024044673A (ja) * 2022-09-21 2024-04-02 ウシオ電機株式会社 光測定装置
DE102022127219A1 (de) * 2022-10-18 2024-04-18 HELLA GmbH & Co. KGaA Scheinwerfer für Fahrzeuge sowie Steuerverfahren
WO2025243287A1 (en) * 2024-05-19 2025-11-27 Ramot At Tel-Aviv University Ltd. Light projection using superposition gaussian beams

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1363460A2 (en) * 2002-05-10 2003-11-19 Seiko Epson Corporation Lighting system and projector
US7108379B2 (en) * 2003-05-09 2006-09-19 Benq Corporation Projector for adjusting a projected image size and luminance depending on various environments
GB2485609A (en) 2010-11-22 2012-05-23 Light Blue Optics Ltd Holographic spatial light modulator (SLM) display with coherent beam profile detection using light sensing pixels
WO2012145200A1 (en) 2011-04-19 2012-10-26 Dolby Laboratories Licensing Corporation High luminance projection displays and associated methods
JP2013015599A (ja) * 2011-07-01 2013-01-24 Sanyo Electric Co Ltd 投写型表示装置
WO2013130037A1 (en) * 2012-02-27 2013-09-06 Dolby Laboratories Licensing Corporation Multi-segment imager

Family Cites Families (150)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5287096A (en) 1989-02-27 1994-02-15 Texas Instruments Incorporated Variable luminosity display system
US5319528A (en) 1990-08-01 1994-06-07 Diomed Limited High power light source
US6392689B1 (en) 1991-02-21 2002-05-21 Eugene Dolgoff System for displaying moving images pseudostereoscopically
JP3028891B2 (ja) 1993-02-17 2000-04-04 株式会社日立製作所 プロジェクタ装置のスクリーン
KR0163077B1 (ko) * 1993-12-27 1999-01-15 사또오 후미오 표시장치
US5490009A (en) 1994-10-31 1996-02-06 Texas Instruments Incorporated Enhanced resolution for digital micro-mirror displays
FR2733062B1 (fr) 1995-04-13 1997-06-27 Thomson Multimedia Sa Systeme de projection comportant un reflecteur et une lentille de champ a surface libre
US5886675A (en) 1995-07-05 1999-03-23 Physical Optics Corporation Autostereoscopic display system with fan-out multiplexer
JP3735158B2 (ja) 1996-06-06 2006-01-18 オリンパス株式会社 画像投影システム、画像処理装置
GB2317290B (en) 1996-09-11 2000-12-06 Seos Displays Ltd Image display apparatus
US5715337A (en) 1996-09-19 1998-02-03 The Mirco Optical Corporation Compact display system
US5953469A (en) 1996-10-29 1999-09-14 Xeotron Corporation Optical device utilizing optical waveguides and mechanical light-switches
US6115022A (en) 1996-12-10 2000-09-05 Metavision Corporation Method and apparatus for adjusting multiple projected raster images
US5956000A (en) 1997-05-12 1999-09-21 Scitex Corporation Ltd. Digital image display system and method
US6057537A (en) * 1997-09-29 2000-05-02 Eastman Kodak Company Optical scanner feedback system having a reflected cylinder lens
SE9800665D0 (sv) * 1998-03-02 1998-03-02 Micronic Laser Systems Ab Improved method for projection printing using a micromirror SLM
JP3832093B2 (ja) * 1998-05-26 2006-10-11 セイコーエプソン株式会社 表示装置及び表示方法
US6456339B1 (en) 1998-07-31 2002-09-24 Massachusetts Institute Of Technology Super-resolution display
US6269175B1 (en) 1998-08-28 2001-07-31 Sarnoff Corporation Method and apparatus for enhancing regions of aligned images using flow estimation
US6590549B1 (en) * 1998-12-30 2003-07-08 Texas Instruments Incorporated Analog pulse width modulation of video data
US6406148B1 (en) 1998-12-31 2002-06-18 Texas Instruments Incorporated Electronic color switching in field sequential video displays
US6570623B1 (en) 1999-05-21 2003-05-27 Princeton University Optical blending for multi-projector display wall systems
GB9923428D0 (en) 1999-10-04 1999-12-08 Thomas Swan & Company Limited Optical switch
EP1098536B1 (en) 1999-11-05 2010-08-18 Texas Instruments Incorporated Colour recapture for projection systems
US7118226B2 (en) 1999-11-05 2006-10-10 Texas Instruments Incorporated Sequential color recapture for image display systems
US6771272B2 (en) 2000-03-17 2004-08-03 Sun Microsystems, Inc. Graphics system having a super-sampled sample buffer with hot spot correction
JP2004507954A (ja) 2000-06-13 2004-03-11 パノラム　テクノロジーズ，インコーポレイテッド． 複数ビデオプロジェクタの継目なし統合の方法及び装置
US6804406B1 (en) 2000-08-30 2004-10-12 Honeywell International Inc. Electronic calibration for seamless tiled display using optical function generator
US6568816B2 (en) 2000-10-04 2003-05-27 Panoram Technologies, Inc. Projection system and method for using a single light source to generate multiple images to be edge blended for arrayed or tiled display
JP2002116500A (ja) 2000-10-05 2002-04-19 Olympus Optical Co Ltd 画像投影表示装置
US7642484B2 (en) 2001-06-13 2010-01-05 Orbotech Ltd Multiple beam micro-machining system and method
US6733138B2 (en) 2001-08-15 2004-05-11 Mitsubishi Electric Research Laboratories, Inc. Multi-projector mosaic with automatic registration
GB0121308D0 (en) * 2001-09-03 2001-10-24 Thomas Swan & Company Ltd Optical processing
US8687271B2 (en) * 2002-03-13 2014-04-01 Dolby Laboratories Licensing Corporation N-modulation displays and related methods
EP2337010A3 (en) * 2002-03-13 2011-11-02 Dolby Laboratories Licensing Corporation High dynamic range display devices
EP1493054A1 (en) * 2002-04-09 2005-01-05 Dicon A/S Light modulating engine
US20030218590A1 (en) * 2002-05-23 2003-11-27 Kiser David K. Optics engine having multi-array spatial light modulating device and method of operation
US7088353B2 (en) 2002-07-10 2006-08-08 Fuji Photo Film Co., Ltd. Display device
AU2003286165A1 (en) 2002-11-15 2004-06-15 Merck Patent Gmbh Electrooptical light modulating element, electrooptical display and modulating medium
GB0228089D0 (en) 2002-12-02 2003-01-08 Seos Ltd Dynamic range enhancement of image display apparatus
AU2003278508A1 (en) 2002-12-11 2004-06-30 Koninklijke Philips Electronics N.V. Projection system with contrast homogeneity correction
GB2398130A (en) 2003-02-05 2004-08-11 Ocuity Ltd Switchable active lens for display apparatus
US7097311B2 (en) 2003-04-19 2006-08-29 University Of Kentucky Research Foundation Super-resolution overlay in multi-projector displays
US7206133B2 (en) * 2003-05-22 2007-04-17 Optical Research Associates Light distribution apparatus and methods for illuminating optical systems
US7521651B2 (en) 2003-09-12 2009-04-21 Orbotech Ltd Multiple beam micro-machining system and method
CA2443494C (en) 2003-09-30 2009-04-07 Institut National D'optique Apparatus for reshaping an optical beam bundle
JP2007508596A (ja) 2003-10-17 2007-04-05 エクスプレイ リミテッド 投影システムに使用する光学システムおよび方法
JP2005181965A (ja) * 2003-11-25 2005-07-07 Ricoh Co Ltd 空間光変調器及び表示装置及び投射表示装置
GB2408646B (en) 2003-11-28 2008-11-26 Seos Ltd Image Display Apparatus with Night Vision Goggle Compatibility
JP2005250235A (ja) 2004-03-05 2005-09-15 Seiko Epson Corp 光変調装置、光学表示装置、光変調制御プログラム及び光学表示装置制御プログラム、並びに光変調制御方法及び光学表示装置制御方法
US7307704B2 (en) 2004-04-19 2007-12-11 Carrier Corporation Light delivery control system and method
CA2817039C (en) 2004-05-04 2015-06-09 Imax Corporation Shimmer-reducing projection system using a diffuser
CN1989716B (zh) * 2004-07-28 2010-05-05 松下电器产业株式会社 影像显示装置及影像显示系统
US7471300B2 (en) * 2005-01-18 2008-12-30 Intel Corporation Progressive data delivery to spatial light modulators
JP4285425B2 (ja) * 2005-03-09 2009-06-24 セイコーエプソン株式会社 画像表示装置及びプロジェクタ
JP4893004B2 (ja) 2005-03-24 2012-03-07 セイコーエプソン株式会社 プロジェクタ
CA2605670C (en) 2005-04-26 2014-08-05 Imax Corporation Electronic projection systems and methods
DE102005021155B3 (de) 2005-04-29 2006-11-23 Seereal Technologies Gmbh Steuerbare Beleuchtungseinrichtung
EP1734771A1 (en) * 2005-06-14 2006-12-20 SONY DEUTSCHLAND GmbH Illumination optics, illumination unit and image generation unit
GB0512179D0 (en) * 2005-06-15 2005-07-20 Light Blue Optics Ltd Holographic dispaly devices
JP4407585B2 (ja) * 2005-07-22 2010-02-03 セイコーエプソン株式会社 照明装置及び画像表示装置、並びにプロジェクタ
JP4821204B2 (ja) * 2005-07-22 2011-11-24 セイコーエプソン株式会社 照明装置及び画像表示装置、並びにプロジェクタ
US7438423B2 (en) 2005-08-29 2008-10-21 3M Innovative Properties Company Illumination system and projection system incorporating same
US20070091277A1 (en) 2005-10-26 2007-04-26 Niranjan Damera-Venkata Luminance based multiple projector system
JP2007192919A (ja) 2006-01-17 2007-08-02 Olympus Corp 画像表示装置
GB2438026A (en) * 2006-05-11 2007-11-14 Univ Cambridge Tech Phase retrevial in hologram generation using amplitude and phase feedback
JP2008026879A (ja) 2006-06-19 2008-02-07 Seiko Epson Corp 表示システムおよび表示方法
JP2008015064A (ja) 2006-07-04 2008-01-24 Seiko Epson Corp 照明装置及びプロジェクタ
JP4210863B2 (ja) 2006-07-06 2009-01-21 セイコーエプソン株式会社 画像処理システム、表示装置、プログラムおよび情報記憶媒体
KR100815440B1 (ko) 2006-07-28 2008-03-20 주식회사 나노브릭 마이크로-전자기계 시스템 기반의 광 프로젝션 엔진과 그제조 방법
JP5011919B2 (ja) 2006-09-29 2012-08-29 セイコーエプソン株式会社 照明装置及びプロジェクタ
JP4957162B2 (ja) * 2006-10-06 2012-06-20 セイコーエプソン株式会社 投写表示装置および投写表示方法
KR20090094078A (ko) 2006-10-26 2009-09-03 시리얼 테크놀로지즈 에스.에이. 홀로그래픽 디스플레이 장치
GB0624092D0 (en) 2006-12-01 2007-01-10 Seos Ltd Image display apparatus
GB2445164A (en) 2006-12-21 2008-07-02 Light Blue Optics Ltd Holographic image display systems
US8749463B2 (en) 2007-01-19 2014-06-10 Hamamatsu Photonics K.K. Phase-modulating apparatus
JP4998002B2 (ja) 2007-02-13 2012-08-15 セイコーエプソン株式会社 プロジェクタ
US20080246705A1 (en) * 2007-04-03 2008-10-09 Texas Instruments Incorporated Off-state light recapturing in display systems employing spatial light modulators
US7936361B2 (en) 2007-04-30 2011-05-03 Hewlett-Packard Development Company, L.P. System and method for masking and overlaying images in multiple projector system
DE102007023785B4 (de) * 2007-05-16 2014-06-18 Seereal Technologies S.A. Analytisches Verfahren zu Berechnung von Videohologrammen in Echtzeit und holographische Wiedergabeeinrichtung
DE102007025069B4 (de) 2007-05-21 2018-05-24 Seereal Technologies S.A. Holographisches Rekonstruktionssystem
US7878657B2 (en) 2007-06-27 2011-02-01 Prysm, Inc. Servo feedback control based on invisible scanning servo beam in scanning beam display systems with light-emitting screens
WO2009010978A1 (en) * 2007-07-17 2009-01-22 Explay Ltd. Coherent imaging method of laser projection and apparatus thereof
JP4475302B2 (ja) * 2007-08-07 2010-06-09 セイコーエプソン株式会社 プロジェクタ及び投射装置
US8319699B2 (en) 2007-08-09 2012-11-27 Barco N.V. Multiple display channel system with high dynamic range
CN101377610A (zh) * 2007-08-30 2009-03-04 鸿富锦精密工业（深圳）有限公司 投影系统及使用该投影系统的便携式电子设备
WO2009040822A2 (en) 2007-09-25 2009-04-02 Explay Ltd. Micro-projector
GB0719721D0 (en) * 2007-10-09 2007-11-21 Seos Ltd Image display apparatus
US7862183B2 (en) * 2007-10-16 2011-01-04 Alcatel-Lucent Usa Inc. Speckle reduction using a tunable liquid lens
JP5042781B2 (ja) 2007-11-06 2012-10-03 株式会社ミツトヨ 周波数安定化レーザ装置及びレーザ周波数安定化方法
US7871165B2 (en) 2007-11-30 2011-01-18 Eastman Kodak Company Stereo projection apparatus using polarized solid state light sources
US8698729B2 (en) 2008-01-09 2014-04-15 Dolby Laboratories Licensing Corporation Mitigation of LCD flare
US7551341B1 (en) * 2008-01-28 2009-06-23 Dolby Laboratories Licensing Corporation Serial modulation display having binary light modulation stage
JP2009180821A (ja) * 2008-01-29 2009-08-13 Funai Electric Co Ltd レーザプロジェクタ
US7944604B2 (en) * 2008-03-07 2011-05-17 Qualcomm Mems Technologies, Inc. Interferometric modulator in transmission mode
EP2266199A4 (en) 2008-04-08 2017-01-11 Cornell University Multi-axis, large tilt angle, wafer level micromirror array for large scale beam steering applications
EP2310917A1 (en) 2008-07-21 2011-04-20 SeeReal Technologies S.A. Light modulating device
JP5287121B2 (ja) 2008-10-14 2013-09-11 株式会社豊田中央研究所 車両用照明装置
US8810503B2 (en) * 2009-04-15 2014-08-19 Dolby Laboratories Licensing Corporation Thin displays having spatially variable backlights
GB0907297D0 (en) 2009-04-29 2009-06-10 Light Blue Optics Ltd Dynamic backlighting
EP2440965A1 (en) 2009-06-12 2012-04-18 Koninklijke Philips Electronics N.V. Array of light emitters
DE102009028626A1 (de) 2009-06-23 2011-01-05 Seereal Technologies S.A. Lichtmodulationvorrichtung für ein Display zur Darstellung zwei- und/oder dreidimensionaler Bildinhalte
CA2766694C (en) 2009-06-23 2020-01-21 Seereal Technologies S.A. Light modulator device used for a display for the presentation of two- and/or three-dimensional image contents
JP2011039322A (ja) * 2009-08-12 2011-02-24 Funai Electric Co Ltd レーザプロジェクタ
US8780096B2 (en) 2009-11-19 2014-07-15 Panasonic Corporation Scanning image display apparatus
US8330870B2 (en) 2009-12-08 2012-12-11 Eastman Kodak Company Dynamic illumination control for laser projection display
EP2564374B1 (en) 2010-04-18 2014-11-19 Imax Corporation Double stacked projection
US8579443B2 (en) 2010-06-30 2013-11-12 Microvision, Inc. Scanned beam display having a redirected exit cone using a diffraction grating
GB201011830D0 (en) 2010-07-14 2010-09-01 Two Trees Photonics Ltd Imaging
GB201011829D0 (en) * 2010-07-14 2010-09-01 Two Trees Photonics Ltd Display system
US8444275B2 (en) 2010-08-12 2013-05-21 Eastman Kodak Company Light source control for projector with multiple pulse-width modulated light sources
EP3623874B1 (en) 2010-09-08 2021-11-10 Dai Nippon Printing Co., Ltd. Illumination device, projection apparatus and projection-type image display apparatus
US8547641B2 (en) 2010-11-09 2013-10-01 Cohernet, Inc. Line-projection apparatus for arrays of diode-laser bar stacks
US20130162952A1 (en) 2010-12-07 2013-06-27 Laser Light Engines, Inc. Multiple Laser Projection System
CN102053371A (zh) * 2010-12-14 2011-05-11 中国科学院安徽光学精密机械研究所 钛宝石可调谐激光器光束准直、整形系统
EP2479546B1 (en) 2011-01-19 2013-08-21 Howard Hughes Medical Institute Wavefront correction of light beam
JP2012163705A (ja) * 2011-02-04 2012-08-30 Denso Corp ヘッドアップディスプレイ装置
US9224320B2 (en) * 2011-03-09 2015-12-29 Dolby Laboratories Licensing Corporation Projection display providing additional modulation and related methods
US9478193B2 (en) * 2011-03-14 2016-10-25 Dolby Laboratories Licensing Corporation Local dimming of a laser light source for projectors and other lighting devices including cinema, entertainment systems and displays
WO2012151262A2 (en) 2011-05-02 2012-11-08 Research Foundation Of The City University Of New York Laser based projection display system
JP5541462B2 (ja) * 2011-05-10 2014-07-09 大日本印刷株式会社 投射型映像表示装置
US9261764B2 (en) * 2011-06-03 2016-02-16 Texas Instruments Incorporated Optically efficient polarized projector
BR112013030565A2 (pt) 2011-06-03 2021-05-11 Thomson Licensing digitalização variável e intercalada em projetores a laser
US9001402B2 (en) * 2011-06-03 2015-04-07 Thomson Licensing Variable and serrated scanning in laser projectors
EP2752009A1 (en) * 2011-08-31 2014-07-09 Lemoptix SA A device and method for projecting an image
US8905578B2 (en) 2011-09-26 2014-12-09 Projectdesign AG Laser array illumination for bright projectors
US10768449B2 (en) 2012-01-17 2020-09-08 Imax Theatres International Limited Stereoscopic glasses using tilted filters
GB201201190D0 (en) 2012-01-25 2012-03-07 Cambridge Entpr Ltd Optical device and methods
US9218755B2 (en) 2012-02-06 2015-12-22 Avery Dennison Corporation Direction active projection
GB2499579B (en) 2012-02-07 2014-11-26 Two Trees Photonics Ltd Lighting device
US20130215394A1 (en) 2012-02-18 2013-08-22 Rakesh Reddy Underwater Image Projection Display System and Lighting Control System And Device
DE112012005960T5 (de) 2012-02-29 2014-11-06 Agilent Technologies, Inc. Softwaredefiniertes Mikroskop
CN103325129B (zh) 2012-03-19 2016-04-20 无锡奥普顿光电子有限公司 一种利用相位调制器件输出图像的方法
WO2013155319A1 (en) 2012-04-13 2013-10-17 Red. Com, Inc. Video projector system
JP6170554B2 (ja) 2012-07-01 2017-07-26 バルコ・ナムローゼ・フエンノートシャップ 投射器光学素子
US20140029858A1 (en) * 2012-07-30 2014-01-30 Qualcomm Mems Technologies, Inc. Interferometric modulators as dual function electro-optic and electro-acoustic devices
US8976318B2 (en) * 2013-03-14 2015-03-10 Christie Digital Systems Usa Inc. System and method for zonal switching for light steering to produce an image having high dynamic range
US9110294B2 (en) 2013-03-15 2015-08-18 Christie Digital Systems Usa, Inc. Imaging with shaped highlight beam
US9049413B2 (en) * 2013-07-30 2015-06-02 Dolby Laboratories Licensing Corporation Multiple stage modulation projector display systems having efficient light utilization
CA2890560C (en) 2013-10-20 2021-06-01 Mtt Innovation Incorporated Light field projectors and methods
CN106537899B (zh) * 2014-05-15 2022-01-18 Mtt创新公司 优化用于多投影仪系统的驱动方案
JP6715188B2 (ja) 2014-06-03 2020-07-01 エムティティ イノベーション インコーポレイテッドＭｔｔ Ｉｎｎｏｖａｔｉｏｎ Ｉｎｃｏｒｐｏｒａｔｅｄ 結像、照明、および投影を用途とする効率的、動的、高コントラストなレンジング方法及び装置
CA2916836C (en) 2014-07-31 2017-12-12 Mtt Innovation Incorporated Numerical approaches for free-form lensing: area parameterization free-form lensing
EP3180652A4 (en) 2014-08-14 2018-04-04 Mtt Innovation Incorporated Multiple-laser light source
US9741293B2 (en) * 2014-09-29 2017-08-22 Japan Display Inc. Display device with optical separation and respective liquid crystal panels
JP6506580B2 (ja) * 2015-03-23 2019-04-24 キヤノン株式会社 画像処理装置およびその方法、並びに、画像表示装置
US10670859B2 (en) * 2015-12-30 2020-06-02 Infineon Technologies Ag High efficiency digital light processing engine
ES2831431T3 (es) 2016-09-30 2021-06-08 Dolby Laboratories Licensing Corp Combinación de haces para proyección resaltada
WO2018101097A1 (ja) * 2016-11-30 2018-06-07 日本電気株式会社 投射装置、投射方法およびプログラム記録媒体
US10416539B2 (en) * 2017-06-21 2019-09-17 Dolby Laboratories Licensing Corporation Spatial light modulator for reduction of certain order light

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1363460A2 (en) * 2002-05-10 2003-11-19 Seiko Epson Corporation Lighting system and projector
US7108379B2 (en) * 2003-05-09 2006-09-19 Benq Corporation Projector for adjusting a projected image size and luminance depending on various environments
GB2485609A (en) 2010-11-22 2012-05-23 Light Blue Optics Ltd Holographic spatial light modulator (SLM) display with coherent beam profile detection using light sensing pixels
WO2012145200A1 (en) 2011-04-19 2012-10-26 Dolby Laboratories Licensing Corporation High luminance projection displays and associated methods
JP2013015599A (ja) * 2011-07-01 2013-01-24 Sanyo Electric Co Ltd 投写型表示装置
WO2013130037A1 (en) * 2012-02-27 2013-09-06 Dolby Laboratories Licensing Corporation Multi-segment imager

Cited By (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12160690B2 (en) 2013-10-20 2024-12-03 Mtt Innovation Incorporated Light field projectors and methods for redistributing light dynamically to achieve a light field
US11363242B2 (en) 2014-05-15 2022-06-14 Mtt Innovation Incorporated Optimizing drive schemes for multiple projector systems
US12160689B2 (en) 2014-05-15 2024-12-03 Mtt Innovation Incorporated Optimizing drive schemes for multiple projector systems
US10408390B2 (en) 2014-08-14 2019-09-10 Mtt Innovation Incorporated Multiple-laser light source
US9874319B2 (en) 2014-08-14 2018-01-23 Mtt Innovation Incorporated Multiple-laser light source
WO2016179542A1 (en) * 2015-05-06 2016-11-10 Dolby Laboratories Licensing Corporation Thermal compensation in image projection
US11323669B2 (en) 2015-05-06 2022-05-03 Dolby Laboratories Licensing Corporation Thermal compensation in image projection
EP4050895A1 (en) * 2015-05-06 2022-08-31 Dolby Laboratories Licensing Corp. Thermal compensation in image projection
US10506206B2 (en) 2015-05-06 2019-12-10 Dolby Laboratories Licensing Corporation Thermal compensation in image projection
US11889233B2 (en) 2015-05-06 2024-01-30 Dolby Laboratories Licensing Corporation Thermal compensation in image projection
EP3360320B1 (en) * 2015-10-06 2024-03-13 MTT Innovation Incorporated Projection systems and methods
CN108141574A (zh) * 2015-10-06 2018-06-08 Mtt创新公司 投影系统和方法
US11032525B2 (en) 2015-10-06 2021-06-08 Mtt Innovation Incorporated Projection systems and methods
US11019311B2 (en) 2015-10-06 2021-05-25 Mtt Innovation Incorporated Projection systems and methods
JP2024094320A (ja) * 2015-10-06 2024-07-09 エムティティ イノベーション インコーポレイテッド カラー画像を投影するための方法および装置
US10469808B2 (en) 2015-10-06 2019-11-05 Mtt Innovation Incorporated Projection systems and methods
US12363264B2 (en) 2015-10-06 2025-07-15 Barco Visual Solutions, Inc. Projection systems and methods
WO2017059537A1 (en) * 2015-10-06 2017-04-13 Mtt Innovation Incorporated Projection systems and methods
US11558588B2 (en) 2015-10-06 2023-01-17 Mtt Innovation Incorporated Projection systems and methods
US10602100B2 (en) 2015-10-06 2020-03-24 Mtt Innovation Incorporated Projection systems and methods
US9848176B2 (en) 2015-10-06 2017-12-19 Mtt Innovation Incorporated Projection systems and methods
WO2017095789A1 (en) * 2015-12-02 2017-06-08 Abl Ip Holding Llc Projection and/or waveguide arrangements for a software configurable lighting device
US10404955B2 (en) 2015-12-02 2019-09-03 Abl Ip Holding Llc Projection and/or waveguide arrangements for a software configurable lighting device
CN105425517A (zh) * 2015-12-29 2016-03-23 济南金永大传媒科技有限公司 一种实现智能芯片可拆卸的投影机
CN109073192A (zh) * 2016-03-17 2018-12-21 奥迪股份公司 具有至少一个前照灯的机动车
US11590881B2 (en) 2016-03-17 2023-02-28 Audi Ag Motor vehicle having at least one headlight with separately actuated light segments
CN116669257A (zh) * 2016-03-17 2023-08-29 奥迪股份公司 具有至少一个前照灯的机动车
US10904496B2 (en) 2016-09-30 2021-01-26 Dolby Laboratories Licensing Corporation Beam combining for highlight projection
US11457185B2 (en) 2016-09-30 2022-09-27 Dolby Laboratories Licensing Corporation Beam combining for highlight projection
US10531055B2 (en) 2016-09-30 2020-01-07 Dolby Laboratories Licensing Corporation Beam combining for highlight projection
DE102017207350B4 (de) 2017-05-02 2019-05-09 Volkswagen Aktiengesellschaft Scheinwerfersystem für ein Kraftfahrzeug
DE102017207350A1 (de) * 2017-05-02 2018-11-08 Volkswagen Aktiengesellschaft Scheinwerfersystem für ein Kraftfahrzeug
US12167175B2 (en) 2017-05-12 2024-12-10 Mtt Innovation Incorporated High brightness projection systems and methods
US11611728B2 (en) 2017-05-12 2023-03-21 Mtt Innovation Incorporated High brightness projection systems and methods
WO2018205036A1 (en) 2017-05-12 2018-11-15 Mtt Innovation Incorporated High brightness projection systems and methods
CN108492239B (zh) * 2018-03-19 2022-05-03 北京工业大学 面向光场相机的结构化观测与稀疏表示的协同优化方法
CN108492239A (zh) * 2018-03-19 2018-09-04 北京工业大学 一种面向光场相机的结构化观测与稀疏表示的协同优化方法
US11463665B2 (en) 2018-05-08 2022-10-04 Barco N.V. Closed loop driving of a highlighter type projector
WO2019215202A1 (en) 2018-05-08 2019-11-14 Barco N.V. Closed loop driving of a highlighter type projector
CN108679574A (zh) * 2018-06-14 2018-10-19 华域视觉科技(上海)有限公司 车灯及汽车
US12498631B2 (en) 2019-02-28 2025-12-16 Barco N.V. Method and system for spatial and angular uniformization of light beams
EP4625038A2 (en) 2019-02-28 2025-10-01 Barco n.v. Method and system for spatial and angular uniformization of light beams
WO2020173577A1 (en) 2019-02-28 2020-09-03 Barco N.V. Method and system for spatial and angular uniformization of light beams
US11864833B2 (en) 2019-10-10 2024-01-09 Natus Medical Incorporated Eye-imaging apparatus and method employing sequential flashing of illumination light in synchronization with the operation of an image sensor
US11426071B2 (en) 2019-10-10 2022-08-30 Natus Medical Incorporated Eye-imaging system and apparatus
WO2021072434A1 (en) * 2019-10-10 2021-04-15 Natus Medical Incorporated Eye-imaging system and apparatus
EP4295571A4 (en) * 2021-02-16 2025-01-08 MTT Innovation Incorporated Patch correction for light steering projector
US12192684B2 (en) 2021-02-16 2025-01-07 Barco Visual Solutions, Inc. Patch correction for light steering projector
WO2023161237A1 (en) 2022-02-22 2023-08-31 Barco N.V. Apparatus and methods for adjusting digital images
WO2024161043A1 (en) 2023-02-03 2024-08-08 Barco N.V. Method for steering light for a projector and light steering projector
LU103067B1 (en) 2023-02-03 2024-08-05 Mtt Innovation Inc Systems and methods for light steering

Also Published As

Publication number Publication date
JP7628989B2 (ja) 2025-02-12
US20250047819A1 (en) 2025-02-06
EP3058722A4 (en) 2017-09-13
CN110286484A (zh) 2019-09-27
JP2020060776A (ja) 2020-04-16
EP3058722B1 (en) 2021-12-15
US20180376115A1 (en) 2018-12-27
CA2890373C (en) 2022-04-12
CA2890560C (en) 2021-06-01
CA2890560A1 (en) 2015-04-20
US20160295178A1 (en) 2016-10-06
JP2023002507A (ja) 2023-01-10
EP3058722A1 (en) 2016-08-24
EP4009626A1 (en) 2022-06-08
CA2890405A1 (en) 2015-04-20
US12160690B2 (en) 2024-12-03
CA2884903A1 (en) 2015-04-20
JP7139305B2 (ja) 2022-09-20
JP2017505555A (ja) 2017-02-16
CA3148330A1 (en) 2015-04-20
CN105993166B (zh) 2019-06-14
CA2884903C (en) 2015-09-22
JP6634012B2 (ja) 2020-01-22
CN105993166A (zh) 2016-10-05
CA2890405C (en) 2022-04-26
US10477170B2 (en) 2019-11-12
CA2890373A1 (en) 2015-04-30

Similar Documents

Publication Publication Date Title
US20250047819A1 (en) Light field projectors and methods for redistributing light dynamically to achieve a light field
US10408390B2 (en) Multiple-laser light source
US11032525B2 (en) Projection systems and methods
JP6556880B2 (ja) プロジェクタ、ならびにシネマ、エンターテイメントシステム、ディスプレイを含む他の発光装置のためのレーザ光源の局所的調光
JP5512798B2 (ja) 高ダイナミックレンジ投影システム
WO2023002675A1 (ja) 照明装置

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 2884903

Country of ref document: CA

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14854627

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2016525963

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 15030799

Country of ref document: US

REEP Request for entry into the european phase

Ref document number: 2014854627

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2014854627

Country of ref document: EP