A light guide device includes reflection units that reflect incident light so as to guide it to irradiate on an object. The units are lined up along a traveling direction of the incident light. Each of the units includes a first light guide member that reflects the incident light. Each of the units is switched between a reflecting state in which the first member reflects the incident light and a passing state in which the incident light passes through, by rotation of the first member. Timing of being in the reflecting state differs among the units. In the reflecting state, the reflected light due to reflection of the incident light is deflected as the first member rotates. The reflected light is led to an irradiated point included in a scanning area in which the unit scans the object to be irradiated. The scanning areas of the units are lined up in parallel with the traveling direction of the incident light.

A light patterning device and a vehicle lamp including the light patterning device and a motor vehicle are provided. The light patterning device includes: at least one light source arranged to emit a light beam; a first patterning unit arranged to receive and pattern the light beam, the first patterning unit including a plurality of first light deflecting portions; and a second patterning unit arranged to receive and pattern the light beam which has been transmitted through the first patterning unit, the second patterning unit including a plurality of second light deflecting portions, wherein at least one of the first patterning unit and the second patterning unit is movable with respect to the other.

The light source device of the projection display apparatus according to the present disclosure includes: solid-state light sources that individually emit blue light, green light, and red light; a plurality of dichroic mirrors that combine the blue light, the green light, and the red light having exited from the solid-state light sources; a first diffusion plate on which the combined light having been combined by the plurality of dichroic mirrors is incident; a dynamic diffusion plate that is disposed at a position at which the combined light having exited from the first diffusion plate converges and starts to diverge.

An illumination system includes at least first and second laser illumination sources. A down converter material emits light when illuminated by one or more of the laser illumination sources. The first laser illumination source is arranged to illuminate only a first portion of the down converter material. The second laser illumination source is arranged to illuminate only a second portion of the down converter material. Control circuitry causes the first laser illumination source to adaptively vary a first intensity of illuminating the first portion of the down converter material, causes the second laser illumination source to adaptively vary a second intensity of illuminating the second portion of the down converter material, and causes the light modulator to allow a selected amount of the down converter material's emitted light to be projected from the system.

Apparatus for generating an optical pattern from image points in an image plane, including: a control unit; a micro-mirror array; an illumination unit controllable by the control unit; a focusing unit; the control unit being configured to control one or several micro-mirror groups formed of several micro-mirrors of the multitude of micro-mirrors such that the centroid beams reflected at the micro-mirrors of one of the micro-mirror groups meet in the image plane, and such that optical path lengths of the centroid beams reflected at the micro-mirrors of the respective micro-mirror group are equal from the illumination unit up to the image plane or differ by an integer multiple of a wavelength of the light beams in order to generate an image point of the image points in such a way.

An illumination device includes an irradiation device, a diffusing element, a first lens array, a second lens array and a deflecting element, which are arranged in this order along the light path. Diffused light that has entered a particular region on the diffusing element and has been diffused by the diffusing element, and diffused light that has entered a region, which differs from the particular region, on the diffusing element and has been diffused by the diffusing element, travel to regions which at least partly overlap each other. The diffusion angle of diffused light exiting the diffusing element is not more than the acceptable angle formed between two line segments LS extending from the principal point of a second unit lens of the second lens array to both ends of a first unit lens of the first lens array.

A laser radiation optical system for laser doping and post-annealing, the laser radiation system including A. a laser apparatus configured to generate pulsed laser light that belongs to an ultraviolet region, B. a stage configured to move a radiation receiving object in an at least one scan direction, the radiation receiving object being an impurity source film containing at least an impurity element as a dopant and formed on a semiconductor substrate, and C. an optical system including a beam homogenizer configured to shape the beam shape of the pulsed laser light into a rectangular shape and generate a beam for laser doping and a beam for post-annealing that differ from each other in terms of a first beam width in the scan direction but have the same second beam width perpendicular to the scan direction.

An illumination system configured to provide an illumination light is provided. The illumination system includes a light source, a light-homogenizing device, and a light-homogenizing element. The light source includes multiple light-emitting units, and the light-emitting units emit multiple light beams respectively. The light-homogenizing device includes a micro-lens-array element. The micro-lens-array element includes multiple micro lenses, and each of the light beams irradiates at least two of the micro lenses. The light beams are totally overlapped, non-overlapped, or partially overlapped with each other before being incident on the light-homogenizing device, and overlapped with each other on an incident surface of the light-homogenizing element. A projection device is also provided.

A lighting apparatus includes a light source for emitting an illumination light, a micromirror array having a plurality of micromirror actuators, and an illumination optical unit and an optical sensor unit. The illumination light emitted by the light source is guided onto the micromirror actuators and reflected at the latter and, with the reflection integrated over time, an on beam is reflected to a lighting application by the micromirror actuators in a respective on tilt position via the illumination optical unit, and an off beam is reflected next to the illumination optical unit by the micromirror actuators in a respective off tilt position. Part of the illumination light contained in the off beam is guided, at least in part, onto the optical sensor unit.

Illumination with DMD and laser modulated adaptive beam shaping. A DMD illumination system includes a plurality of laser illumination sources, each of the plurality of illumination sources directing light onto a phosphor arranged between the plurality of laser illumination sources and a digital micro-mirror device; control circuitry coupled to the plurality of illumination sources and to the digital micro-mirror device configured for controlling the position of the array of micro-mirrors and further configured for providing control signals to each of the plurality of laser illumination sources, so that the light from the plurality of laser illumination sources strikes the phosphor and is then directed from the phosphor onto the array of micro-mirrors in the digital micro-mirror device when the micro-mirrors are at a predetermined position, and the light is reflected from the digital micro-mirror device and out of the system. Methods are also disclosed.