The present disclosure generally relates to micro-ribbon structures used in display systems and methods of fabrication thereof. Individual fibers are made using an extrusion process whereby a core surrounded by an ink portion is extruded to create an individual fiber. The ink portion may include both an inner portion that is in contact with the core and an outer shell portion over the inner portion. The individual fibers are then bonded to adjacent fibers to create micro-ribbon structures. The micro-ribbon structures are of one color and spaced from adjacent micro-ribbon structures of a different color by a light blocking fiber. The micro-ribbon structures are each bonded to the light blocking fiber to create the color stripes used in the display system.

Provided are a lens device, an imaging apparatus, an optical member, an imaging method, and an imaging program that are used to acquire multispectral images having a good image quality. According to one aspect, a lens device includes: an imaging optical system that includes a lens forming an optical image of a subject; and an optical member that is disposed near a pupil of the imaging optical system in a state where an optical axis of the optical member coincides with an optical axis of the imaging optical system, and includes a frame that includes a plurality of aperture regions, a plurality of optical filters that are disposed in at least one of the plurality of aperture regions and include two or more optical filters transmitting light having at least some wavelength ranges different from each other, and a plurality of polarizing filters that are disposed in at least one of the plurality of aperture regions and have different polarization directions. The amount of light emitted from the imaging optical system is changeable in the plurality of aperture regions.

A method for approximating spectral data, the method comprising using at least one hardware processor for: providing a digital image comprising data in a first set of spectral bands; providing a dictionary comprising (a) signatures in a second set of spectral bands and (b) values in said first set of spectral bands, wherein said values correspond to the signatures, and wherein said first and second sets of spectral bands are different; and approximating, based on the dictionary, data in said second set of spectral bands of said digital image

A system may include a processor, a night vision sensor, and an objective lens assembly comprising four lenses. Each of a first lens, a second lens, a third lens, and a fourth lens may be configured to project a real world scene onto one of four portions of the night vision sensor. The night vision sensor may be configured to provide four images of the real world scene from the objective lens assembly to the processor. The processor may be configured to: receive a first image, a second image, a third image, and a fourth image from the night vision sensor; generate color night vision image data based at least on the first image, the second image, the third image, and the fourth image; and output the color night vision image data.

A method for approximating spectral data, the method comprising using at least one hardware processor for: providing a digital image comprising data in a first set of spectral bands; providing a dictionary comprising (a) signatures in a second set of spectral bands and (b) values in said first set of spectral bands, wherein said values correspond to the signatures, and wherein said first and second sets of spectral bands are different; and approximating, based on the dictionary, data in said second set of spectral bands of said digital image.

The invention provides a full color projection system (1000) comprising a lighting system (100) configured to provide first light (111) including blue light, second light (121) including one or more of green and yellow light, third light (131) including red light, wherein the first light (111), the second light (121), and the third light (131) include light having a wavelength of 430 nm or larger; a further light source (140) configured to provide further light source light (141) including one or more of UV light and short wavelength blue light having a wavelength of 420 nm or smaller, wherein the first light (111), second light (121), third light (131) and the further light source light (141) have mutually differing spectral power distributions; a spatial light modulator system (200) configured to receive the first light (111), the second light (121), the third light (131), and the further light source light (141), wherein the spatial light modulator system (200) is configured to provide a plurality of pixels (210) for providing projection system light (1001) with one or more of the first light (111), the second light (121), and the third light (131), and in one or more control modes the further light source light (141); and a control system (300) configured to control the lighting system (100), the further light source (140), and the spatial light modulator system (200), wherein during operation one or more pixels (210) are temporarily configured to provide white projection system light (1001), and wherein the projection system (1000) is configured to provide also the further light source light (141) via one or more of those one or more pixels (210).

The invention provides a full color projection system (1000) comprising a lighting system (100) configured to provide first light (111) including blue light, second light (121) including one or more of green and yellow light, third light (131) including red light, wherein the first light (111), the second light (121), and the third light (131) include light having a wavelength of 430 nm or larger; a further light source (140) configured to provide further light source light (141) including one or more of UV light and short wavelength blue light having a wavelength of 420 nm or smaller, wherein the first light (111), second light (121), third light (131) and the further light source light (141) have mutually differing spectral power distributions; a spatial light modulator system (200) configured to receive the first light (111), the second light (121), the third light (131), and the further light source light (141), wherein the spatial light modulator system (200) is configured to provide a plurality of pixels (210) for providing projection system light (1001) with one or more of the first light (111), the second light (121), and the third light (131), and in one or more control modes the further light source light (141); and a control system (300) configured to control the lighting system (100), the further light source (140), and the spatial light modulator system (200), wherein during operation one or more pixels (210) are temporarily configured to provide white projection system light (1001), and wherein the projection system (1000) is configured to provide also the further light source light (141) via one or more of those one or more pixels (210).

An image generating unit includes an image generating part configured to generate an image from illumination light; a driving magnet configured to generate a magnetic field; a driving coil arranged in the magnetic field of the driving magnet; a heat radiating part coupled to the image generating part and configured to radiate heat of the image generating part. The driving magnet and the driving coil move the image generating part and the heat radiating part. The driving coil is placed at the heat radiating part via a substance, thermal conductivity of the substance being lower than thermal conductivity of the heat radiating part.

An image generating unit includes an image generating part configured to generate an image from illumination light; a driving magnet configured to generate a magnetic field; a driving coil arranged in the magnetic field of the driving magnet; a heat radiating part coupled to the image generating part and configured to radiate heat of the image generating part. The driving magnet and the driving coil move the image generating part and the heat radiating part. The driving coil is placed at the heat radiating part via a substance, thermal conductivity of the substance being lower than thermal conductivity of the heat radiating part.

A camera assembly, an image acquisition method, and a mobile terminal are provided. The image acquisition method is applied to a mobile terminal including the camera assembly provided in this disclosure, and the image acquisition method includes: acquiring first image data derived from an exposure of a filtering and photosensitive module in the camera assembly and second image data derived from an exposure of a photosensitive module in the camera assembly; generating a target image from the first image data and the second image data.