In an imaging apparatus, two pupils of a pupil division optical system transmits light of a first wavelength band and light of a second wavelength band. An amount of components of the first wavelength band in first transmittance characteristics and second transmittance characteristics is more than an amount of components of the second wavelength band in the first transmittance characteristics and the second transmittance characteristics. An amount of components of the second wavelength band in third transmittance characteristics is more than an amount of components of the first wavelength band in the third transmittance characteristics. A processor is configured to generate a color image including a first signal that is based on the first transmittance characteristics as a first channel and a second signal that is based on the second transmittance characteristics as a second channel and a third channel.

A system and method for dynamically adjusting a color gamut of a display system, and a display system are provided. The display system includes a light source system and an imaging system. The light source system includes an excitation light source and a narrow-spectrum primary-light source. The imaging system includes a spatial light modulation device and the system for dynamically adjusting the color gamut of the display system. The excitation light source emits excitation light which is processed to output at least one broad-spectrum primary light. The narrow-spectrum primary light source outputs at least one narrow-spectrum primary light. The narrow-spectrum primary light and the wide-spectrum primary light are combined and then output to the imaging system. The brightness of light emitted by the excitation light source and the narrow-spectrum primary light source is adjusted. Therefore, the efficiency is improved and the costs are reduced while enhancing the color gamut.

An optical system having a first red light emitting diode (LED) emitting a first light of a first wavelength; a second red LED emitting a second light of a second wavelength; a blue LED emitting a third light of a third wavelength; a blue laser diode emitting a fourth light of the third wavelength; and a green phosphor converting the fourth light into a fifth light of a fourth wavelength, in which the first light, the second light, the third light, and the fifth light are emitted in a first direction.

An optical system having a first red light emitting diode (LED) emitting a first light of a first wavelength; a second red LED emitting a second light of a second wavelength; a blue LED emitting a third light of a third wavelength; a blue laser diode emitting a fourth light of the third wavelength; and a green phosphor converting the fourth light into a fifth light of a fourth wavelength, in which the first light, the second light, the third light, and the fifth light are emitted in a first direction.

A projection display device includes a plurality of semiconductor lasers, a collimating lens, an integrator illumination system, a deflection element, a transfer optical system, and a projection lens. The collimating lens is configured to collimate a plurality of laser beams output from the plurality of semiconductor lasers. The integrator illumination system is configured to overlap the plurality of laser beams collimated by the collimating lens to form a rectangular illumination region. The deflection element is disposed at a position closer to the collimating lens than a position where the rectangular illumination region is formed by the integrator illumination system. The transfer optical system is configured to enlarge and transfer the rectangular illumination region deflection-scanned by the deflection element to a reflective optical modulation element. The projection lens is configured to project video light output from the reflective optical modulation element.

An information acquisition method implemented by one or more processor, includes: acquiring, for each of frames, a brightness value corresponding to a position of a color filter from a light receiving device including light receiving elements whose light receiving surfaces are covered with color filters, the color filters including the color filter and the color filters comprising at least first color filters transmitting light of a wavelength band corresponding to a first color and second color filters transmitting light of a wavelength band corresponding to a second color; and acquiring information on a mobile device based on difference between brightness values of the position acquired from a plurality of frames and at least one of a threshold for the first color filters and a threshold for the second color filters.

An optical engine module includes a first light source module, a second light source module, and a controller. The first light source module includes a plurality of solid state light emitters. The solid state light emitters are configured to respectively emit different color lights. The second light source module is configured to emit fluorescent light. The controller is configured to: drive the first light source module in a first light emitting mode, in which the color lights are configured to be mixed to produce a first white light; and drive the first light source module and the second light source module in a second light emitting mode, in which the color lights and the fluorescent light are configured to be mixed to produce a second white light.

An information processing apparatus includes an acquisition unit configured to acquire image data representing an image generated by projecting a first image on a part of a second image using at least one projection apparatus and a control unit configured to control a presentation unit to present, to a user, an area in the second image where the first image is to be projected by the at least one projection apparatus based on the image.

An information processing apparatus includes an acquisition unit configured to acquire image data representing an image generated by projecting a first image on a part of a second image using at least one projection apparatus and a control unit configured to control a presentation unit to present, to a user, an area in the second image where the first image is to be projected by the at least one projection apparatus based on the image.

A liquid crystal display (LCD) projector with active color separation lighting includes a projection light source, a condenser, a collimating lens, an incident polarizer, a dichroic mirror, an LCD light valve, a color combination mirror, an outgoing polarizer, a field lens and a projection lens all of which are distributed in sequence according to a direction of light travel. In the present invention, RGB three primary color rays of the projection light source are irradiated on the RR, GR and BR of the LCD light valve, respectively, ≥⅔ of the light originally blocked by the CF and the light originally blocked by the BM pass as much as possible or even completely through R, G and B sub-pixels, which fundamentally improves the transmittance of the LCD light valve, so that the efficiency of the optical system is completely improved.