Abstract: A method, system and apparatus for dynamically monitoring and calibrating display tiles are provided. The apparatus comprises: an array of light emitting devices; one or more light emitting devices paired with light emitting devices of the array; one or more sensors configured to detect an optical characteristic and/or an electrical characteristic of the one or more paired light emitting devices; and, circuitry configured to: drive the array; drive each of the one or more further light emitting devices under same conditions as light emitting devices of the array; temporarily drive each of the one or more paired light emitting devices under different conditions from the array; and, adjust driving of the array based on the optical characteristic and/or electrical characteristic of the one or more paired light emitting devices detected at sensor(s) when the one or more paired light emitting devices are driven under the different conditions.

Abstract: A method, system and apparatus for automatically determining operating conditions of a periodically poled lithium niobate crystal in a laser system are provided. The system comprise: a laser; a periodic poled lithium niobate (PPLN) crystal for receiving laser input from the laser; a temperature control device for adjusting the temperature of the PPLN crystal; a temperature sensor for monitoring the temperature of the PPLN crystal; and a computing device. While the PPLN crystal is receiving laser input, temperature of the PPLN crystal is changed using the temperature control device. The computing device monitors the temperature of the PPLN crystal and corresponding power of the temperature control device during the changing, the temperature monitored using the temperature sensor. The computing device determines one or more of operating conditions of the temperature control device and an operating temperature of the PPLN crystal from a function of the power vs. the temperature.

Abstract: A system for uniform distribution of light is provided. The system comprises: an integrating rod comprising an output end opposite an input end, the integrator rod configured to emit, at the output end an integrated image of light received at the input end, the integrated image having an etendue Eimg and an area Aimg at a given distance from the output end; and, an apparatus comprising an input side located at the given distance, the apparatus configured to: receive, at the input side, the integrated image from the output end of the integrating rod; split the integrated image into a number N of sub-images, each of the sub-images having an area Asub, and an etendue Esub, such that Aimg is about N*Asub, and Eimg is about N*Esub; and, relay the sub-images.

Abstract: A light distribution system with a blue laser and colour conversion is provided. The system comprises: a blue laser light source; a plurality of optical fibers; a light distribution system configured to receive blue laser light from the blue laser light source and distribute the blue laser light to the plurality of optical fibers; a plurality of colour conversion systems, each configured to: receive the blue laser light from at least one of the plurality of optical fibers; and convert the blue laser light to at least one other colour of light different from the blue laser light; and, a plurality of projectors configured to receive the at least one other colour of light, from the plurality of colour conversion systems, for use in projecting images.

Abstract: A system for variable distribution of light is provided. The system comprises: a plurality of reflective optical devices having a first variable reflective beam splitter configured to receive light along an input light path and direct a first portion of the light along a first light path and direct a second portion of the light to another one of the plurality of reflective optical devices, and a last reflective optical device configured to receive remaining light from a second last reflective optical device and to perform one of: direct the remaining light along a last light path; and, divide the remaining light into two portions, and direct the two portions along two different light paths. At least one optical property of one or more of the plurality reflective optical devices is adjustable to variably apportion received light.

Abstract: A relay lens system for a high dynamic range projector is provided. The relay lens system comprising: a light input; a light output; one or more lenses configured to relay light from the light input to the light output; and, an aperture stop configured to provide a given numerical aperture to the light being relayed through the one or more lenses, the combination of the given numerical aperture and the one or more lenses are configured to introduce a spherical aberration in the light between the light input and the light output, the spherical aberration changing a shape of a pixel in the light from an approximate square shape at the light input to a function having an upper boundary and a lower boundary based on a distance from a centre of the pixel, and a pixel dimension of a dither pattern in the light entering the light input.

Abstract: A relay lens system for a high dynamic range projector is provided. The relay lens system comprises: a light input; a light output; one or more lenses configured to relay light from the light input to the light output; and, an aperture stop configured to provide a given numerical aperture to the light being relayed through the one or more lenses, the combination of the given numerical aperture and the one or more lenses are configured to: introduce a spherical aberration in the light between the light input and the light output; and, suppress one or more of the following in a ray fan plot of the spherical aberration: local maxima and local minima; and, points where a derivative of the ray fan plot is zero.

Abstract: A system and apparatus for dynamically distributing light are provided. The apparatus includes a source conduit configured to collect light from a light source and transmit the collected light for emission towards an optical switch. The optical switch is moveable between several discrete resting positions, each corresponding to a different one of a plurality of projector conduits. In each resting position, the optical switch directs light from the source conduit to a corresponding projector conduit. Each projector conduit receives the directed light from the optical switch and transmits the light to a corresponding one of a plurality of projectors. The optical switch is also configured to rest at each of the resting positions for respective portions of a given period of time, to regulate what amount of the light emitted by the source conduit during the period of time is received by each projector conduit.

Abstract: Apparatus, systems and methods are provided for illuminating objects in a projection area. The system includes a computing device, a projector and a camera. The computing device stores a digital model of an object, and illumination data having lighting parameters and a reference to the digital model. The projector, or another light source, projects structured light onto the projection area, and the camera simultaneously captures an image of the projection area. The computing device receives the captured image, determines a position and orientation of the object by comparing the digital model to the captured image, and then generates a canvas image including a region matching the determined position and orientation of the object. The projector projects the canvas image onto the projection area. A predefined portion of the object corresponding to the reference in the illumination data is thereby illuminated according to the lighting parameters.

Abstract: A system and method for producing an image having high dynamic range is described. The system comprises: a light source for providing light along an optical path; a digital micromirror device for directing portions of the light to off-state and on-state light paths, thereby producing an image; and a deformable optical element disposed in the optical path between the light source and the digital micromirror device for steering at least some of the light from the off-state light path to the on-state light path to increase dynamic range of the image produced by the digital micromirror device. The deformable optical element can comprise at least one steerable segment and at least one static element.

Abstract: An immersive environment system having marked contact lenses coordinated with images is provided. The system comprises: a display system configured to display multiplexed images comprising at least a first set of images and a second set of images optically-separable from the first set; a first pair of contact lenses marked as associated with the first set of images and configured to demultiplex the first set from the second set; and, a second pair of contact lenses marked as associated with the second set of images and configured to demultiplex the second set from the first set.

Abstract: A method and system for zonal switching for light steering to produce an image having high dynamic range is described. The system comprises: a light source for providing light along an optical path; a spatial light modulator for directing portions of the light to off-state and on-state light paths, thereby producing an image, the spatial light modulator having a plurality of illumination zones corresponding to the image; and a set of sequentially-arranged optical elements in the optical path for steering at least some of the light from a first subset of the plurality of illumination zones to a second subset of the plurality of illumination zones to increase the dynamic range of the image. The dwell time of the one or more sequentially arranged optical elements can be modified to steer light.

Abstract: A light engine is provided for a projection system, comprising a color wheel having a plurality of color phosphor portions; at least two light sources for illuminating the wheel at different locations for generating at least two time-sequenced beams of red, green and blue light, wherein the output beams are highly synchronized and exhibit substantially similar colorimetry, including spectrum and balance of red, green and blue light; and a digital micromirror device for modulating the time-sequenced beams of red, green and blue light to create an image.

Abstract: A system for cooling electronic components is provided, the system comprising: a first electronic component having a first operating temperature; a second electronic component having a second operating temperature greater than the first operating temperature; a vapour compression loop configured to cool the first electronic component to the first operating temperature; a pumped cooling loop configured to cool the second electronic component to the second operating temperature; and a heat exchanger between the vapour compression loop and the pumped cooling loop, the heat exchanger configured to transfer heat from the pumped cooling loop to the vapour compression loop before the second electronic component is cooled and after the first electronic component is cooled.

Abstract: A plurality of light sources of different wavelength bands can be provided. An imaging device can be configured to modulate incoming light according to video image data and output modulated light. A projection lens can be positioned to project the modulated light. An optical combiner can be disposed between the light sources and the imaging device. A plurality of holographic devices can each include a plurality of different holographic elements selectively positionable in a light path extending between one of the light sources and the optical combiner. Each of the holographic elements can define a light-shaping hologram. A controller can be configured to selectively position the holographic elements of the holographic devices based on the video image data.

Abstract: A system for order alignment of diffractively produced images is provided. The system comprises: a diffractive spatial light modulator (DSLM) configured to provide a computer generated hologram of an image; a substantially coherent light source configured to illuminate the DSLM which responsively produces the image along each of different diffractive order paths; and, at least one set of optical components located along respective diffractive order paths of the DSLM, the at least one set of optical components configured to align at least one respective image diffracted from the DSLM with at least another diffracted image at a common image plane.

Abstract: A spectral imaging apparatus includes an image sensor positioned to capture images of a target, a rotating color wheel aligned with the image sensor, and a projector positioned to project overlay images onto the target. The color wheel can include one or more filter segments, each allowing light of a different range of wavelengths to pass. The color wheel can further include a blocking or opaque segment. A set of captured images of the different wavelengths can be processed to generate a false-color overlay image for projection onto the target. Processing of overlay images can be performed when the blocking or opaque segment is in front of the image sensor. The spectral imaging apparatus may be a multi-spectral imaging apparatus and made be used in the medical fields, such as for determining and indicating tissue oxygenation. Video rates can be achieved.

Abstract: A light combining system is provided comprising: prisms comprising respective entrance faces enabled to receive respective on-state light from respective digital-micro-mirror devices (DMD). At least one interface between prisms is enabled to receive respective on-state light from the prisms. A mirror at the at least one interface is enabled to transmit first on-state light from a first prism through a second prism and reflect second on-state light from the second prism in alignment with the first on-state light back through the second prism. Respective angles formed by a normal of the mirror and each of the first on-state light and the second on-state light is less than a total internal reflection angle. A combination of respective back working distances of the DMDs and shapes of each of the prisms is chosen such that respective illumination paths and respective reflection paths of each of DMDs do not interfere with each other.

Abstract: Described is a light module interlock system comprising: an optical cable enabled to transmit light of a first wavelength and a second wavelength different than the first wavelength; a first light module enabled to provide the first wavelength to the optical cable; a second light module enabled to provide the second wavelength to the optical cable; a sensor enabled to detect the first wavelength transmitted by the optical cable, the sensor located at an opposite end of the optical cable as the first light module; and an interlock in communication with the sensor, the interlock enabled to: disable the second light module when the sensor fails to detect the first wavelength, such that the second wavelength is no longer provided to the optical cable.

Abstract: A configurable imaging system and methods therefor are provided. For each respective display unit in an imaging system having an image source and display units, presence of adjacent display units is detected, each of the display units configured to generate respective portions of an image, the display units arranged in a geometrical configuration. A map of the one of the geometrical configurations is generated based on detection of the presence of the adjacent display units.