Abstract:
A light source system (200), comprises: a light-emitting device (1) for emitting a first light and a second light in sequence; a beam splitting system (2) with which the first light emitted from the light-emitting device (1) is divided into one beam in a first range of wavelength and the other beam in a second range of wavelength, respectively emitted along a first optical path and a second optical path, and also with which at least a part of the second light emitted from the light-emitting device (1) is emitted along the first optical path; a first spatial light modulator (211) for modulating the beam emitted from the beam splitting system (2) along the first optical path; a second spatial light modulator (213) for modulating the beam emitted from the beam splitting system (2) along the second optical path. The light source system (200) has the advantages of high light-emitting efficiency and low cost. A projection system comprising the aforementioned light source system (200) is also provided.
Abstract:
An image projection apparatus (100) displays includes a lens attachable portion (170) to which a plurality of projection lenses (160a, 160b, 160c) having different optical characteristics are interchangeably attached, a drive signal producer (130) configured to produce, for each color light beam, a drive signal used to drive the light modulation element based on an input image signal, and an information acquirer (132) configured to acquire information on an optical characteristic of the projection lens attached to the lens attachable portion. The information on the optical characteristic of the projection lens contains information on a chromatic aberration of the projection lens. The drive signal producer reduces influence of a shift below the modulation pixel caused by the chromatic aberration of the projection lens by using the information on the optical characteristic.
Abstract:
Provided is a real-time-measurement projection device which can measure a distance to a changing target object in real time, and, particularly, can appropriately perform projection and mapping on a changing target object. A real-time-measurement projection device includes a projection device that projects pattern light including a pattern image onto a projection target, an imaging device that electronically acquires a captured image of the projection target irradiated with the pattern light for each pixel for a predetermined exposure time, and a calculation device that calculates a distance to each point of the projection target by contrasting data of the captured image with data of the pattern image, in which the imaging device temporally deviates a start point and an end point of the predetermined exposure time for each pixel.
Abstract:
Described are improved approaches to implement color sequential displays that can mitigate problems with conventional display technologies. Color-breakup is mitigated by modifying the original color channels and adding one or more additional color channels derived from the original ones.
Abstract:
An image drawing apparatus (100) includes a light source unit (110) that outputs a laser light, a sensor (115) that measures an index regarding brightness of the laser light, a scanner (120) that reflects and scans the laser light, and an image processor (111) that controls the light source unit (110), outputs the laser light to a drawing area narrower than a scanning area of the scanner (120) so that an image based on image data that has been input is drawn, outputting an adjustment laser light to adjust the brightness of the laser light to an outside of the drawing area, stops the output of the adjustment laser light when a period until the time the output of the adjustment laser light becomes stable is passed after the output of the adjustment laser light is started, and adjusts the brightness of the laser light based on the index regarding the brightness of the adjustment laser light. The period until the time the output of the adjustment laser light is stopped can be varied.
Abstract:
The application discloses a light source assembly and a laser projector. An embodiment of the application provides a light source assembly including a laser light emitter in at least one color, and a light guiding element arranged in a light path over which a light beam of the laser light emitter is transmitted; the light guiding element is configured to be moved to change the emergent angle of laser light beam being transmitted, thus adjusting the light path conveniently.
Abstract:
An illumination device includes an excitation light source which emits excitation light, a wavelength converter which generates fluorescent light having a wavelength different from that of the excitation light through the excitation of the excitation light and a light path-splitting member including a first filter and a second filter arranged to alternately come across a light path of the excitation light, wherein the first filter reflects one of the excitation light and the fluorescent light and transmits the other of the excitation light and the fluorescent light, the second filter transmits light reflected by the first filter and reflects light transmitted through the first filter, and the wavelength converter is disposed in a reflection light path or a transmission light path of the excitation light.
Abstract:
The subject of the invention is a device for generating images (10) for automotive vehicle head-up display (100), comprising a liquid crystal screen (12) and a back-lighting device (14), said back-lighting device (14) comprising: at least one light-emitting diode (16), a housing (28; 29) surrounding the space lying between the at least one light-emitting diode (16) and the liquid crystal screen (12), characterized in that said housing (28; 29) is bent, the device for generating images (10) furthermore comprising a reflecting surface (31; 32) arranged in a bent portion (28c; 29c) of the housing (28; 29) and oriented in such a way as to reflect the light emitted by the at least one light-emitting diode (16) in the direction of the screen (12). The invention also relates to a head-up display (100).
Abstract:
Die Erfindung betrifft ein Lichtmodul (1). Das Lichtmodul (1) umfasst mindestens bevorzugt mindestens drei Laserdioden (2a, 2b, 2c), die Licht in einem sichtbaren Wellenlängenbereich emittieren, je eine Kollimiervorrichtung (3a, 3b, 3c) pro Laserdiode, eine Strahlkombinationsvorrichtung (4) zur Zusammenführen des emittierten Lichtes der einzelnen Laserdioden (2a, 2b, 2c), eine Strahlformungsvorrichtung (5) zur Formung des zusammengeführten Strahls und mindestens einen Emitter (6) zur Erzeugung von nicht-sichtbarem Licht, insbesondere eine IR-Laserdiode. Der Emitter (6) derartig angeordnet ist, dass das emittierte nichtsichtbare Licht nicht durch die Strahlkombinationsvorrichtung (4) und/oder nicht durch die Strahlformungsvorrichtung (5) geführt wird.