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.

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.

An optical device includes a phosphor wheel and two light sources. The phosphor wheel has two phosphor regions. The phosphor regions are located at different radial positions of the phosphor wheel and are not overlapped. Each of the phosphor regions has a plurality of color sections. The light sources emit two light beams so as to respectively provide two light spots on the phosphor wheel. During the rotation of the phosphor wheel, the light spots are located at the color sections having the same fluorescent characteristic respectively in the phosphor regions.

An optical device includes a phosphor wheel and two light sources. The phosphor wheel has two phosphor regions. The phosphor regions are located at different radial positions of the phosphor wheel and are not overlapped. Each of the phosphor regions has a plurality of color sections. The light sources emit two light beams so as to respectively provide two light spots on the phosphor wheel. During the rotation of the phosphor wheel, the light spots are located at the color sections having the same fluorescent characteristic respectively in the phosphor regions.

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.

The invention relates to an image sensor apparatus of a camera for detecting light. The image sensor apparatus comprises at least a first and a second sensor element and a carrier medium, wherein the carrier medium has a first and second input coupling region and a first and second output coupling region, wherein the first input coupling region has a first deflection structure which input couples light at a first given wavelength into the carrier medium in the direction of the first output coupling region, wherein the second input coupling region has a second deflection structure which input couples light at a second given wavelength into the carrier medium in the direction of the second output coupling region, wherein the first output coupling region has a first output coupling deflection structure which output couples the transmitted light from the carrier medium onto the first sensor element and wherein the second output coupling region has a second output coupling deflection structure which output couples the light onto the second sensor element.

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).

Imaging devices and methods for generating a color image from a low-light scene. A method incudes filtering light from the low-light scene to produce a first light channel having filtered light filtered by a first filter and a second light channel having unfiltered light. The method includes producing a first information channel and a second information channel. The first information channel includes first brightness information corresponding to the first light channel and the second information channel includes second brightness information corresponding to the second light channel. The method includes receiving the first information channel and the second information channel and assigning the first brightness information to a first color channel. The method includes assigning the second brightness information to second color channel and processing the first color channel and the second color channel to produce a full-color image stream. The method includes outputting the full-color image stream.