A road surface drawing system includes a road surface drawing lamp that is provided in a vehicle and illuminates a road surface with a beam, and a controller that controls the road surface drawing lamp and draws, with a beam BM, a pattern PTN on the road surface ahead of the vehicle. The controller draws a pattern PTN instructing the vehicle to stop if a signal state of an upcoming traffic signal is a red light.

An atmosphere starry sky light for festival entertainment is provided. The constellation unit is configured to switch patterns of twelve constellations and perform projection display on the patterns of the twelve constellations. The starry sky unit is configured to project a starry sky background. The background unit is configured to project patterns of aurora, clouds, and ripples. The planetary unit is configured to switch patterns of a planet, and to project and display a planetary image. The constellation unit, the planetary unit, the starry sky unit and the background unit form a panoramic image of the cosmic starry sky by superimposing and combining.

A beam shaping method and device employing full-image transfer for planar light sources. The method comprises: using multiple first lenses to respectively magnify and image beams emitted by multiple planar light sources, so as to obtain magnified full images of the multiple planar light sources; and seamlessly stitching together the magnified full images of the multiple planar light sources at a primary imaging position, so as to obtain a seamless light source at the primary imaging position. The beam shaping method for the planar light sources achieves the elimination of gaps between the light sources with almost no loss of optical power by means of full-image transfer and seamless stitching, thereby improving the beam quality of the light sources as a whole. This kind of optical shaping method is suitable for shaping and processing planar light sources such as VCSEL and LED.

To protect observer's eyes while forming a clear illumination pattern on a desired region to be illuminated. An illumination device includes a light source that emits coherent light, a collimating optical system that enlarges and collimates a beam diameter of the coherent light emitted from the light source, and a diffractive optical element that diffracts the coherent light collimated by the collimating optical system into a predetermined diffusion angle space. The diffractive optical element has a plurality of element diffractive optical portions and has a function to illuminate the region to be illuminated defined at a predetermined position and having predetermined size and shape to form the desired illumination pattern. Each of the plurality of element diffractive optical portions has a function to illuminate at least a part of the region to be illuminated, and diffractive characteristics of the element diffractive optical portions are different from each other.

A space projection lamp includes the convex lens, an uneven reflective plate, motor, light source, integrated main control and power input. The bottom surface of the uneven reflective plate is fixedly connected with the output shaft of the motor. The convex lens and the light source are respectively arranged on both sides of the uneven reflective plate. The light emitted by the light source passes through the convex lens after being reflected by the uneven reflective plate. When the light source irradiates the uneven reflective plate from the side, the reflection is projected out through the imaging of convex lens, forming a layered light effect. When the motor rotates with uneven reflective plate, it will form a multi-level dream light effect.

A light emitting device includes: a base; a first semiconductor laser element disposed on an upper surface of the base and configured to emit first light; a first light reflecting member disposed on the upper surface of the base, the first light reflecting member having a first light reflecting face including a plane configured to reflect the first light; a second semiconductor laser element disposed on an upper surface of the base and configured to emit second light; a second light reflecting member disposed on the upper surface of the base, the second light reflecting member having a second light reflecting face including a plane configured to reflect the second light; and a phosphor member onto which the first light reflected from the first light reflecting member and the second light reflected from the second light reflecting member are irradiated.

Systems and methods for an aircraft lighting system (ALS) are provided. The method includes co-locating a central light source subsystem including a blue light generator, red light generator, and green light generator, and a light generating control unit (LGCU) comprising a processor, and distributing a plurality of passive light-heads around an external surface of the aircraft. Each passive light-head of the plurality of passive light-heads is operationally coupled to a first side of a respective light switch of a respective plurality of light switches, the light switch being coupled on a second side to a light emitting output of the central light source subsystem. Controlling and actuating the light generators and the light switches in accordance with a load profile is performed by a light generating control unit (LGCU).

The invention provides a luminescent element (1000) comprising a solid luminescent body (100), wherein the solid luminescent body (100) comprises a luminescent material (200), wherein the luminescent material (200) is configured to generate luminescent material light (201) upon excitation with light having a wavelength where the luminescent material (200) is excitable, wherein the solid luminescent body (100) comprises luminescent body faces (120), wherein the luminescent element (1000) further comprises one or more reflective elements (300) associated to at least one luminescent body face (120), wherein the one or more reflective elements (300) are metallic, and wherein a surface coverage of the at least one luminescent body face (120) with the one or more reflective elements (300) is selected from the range of 5-40%.

A vehicle light guide and a vehicle headlight which can improve long-distance visibility are provided. The vehicle light guide has a shape having an incident surface on which light from a light source is incident, a first reflective surface which internally reflects the light incident from the incident surface toward a front in a front-back direction in a vehicle-mounted state, a second reflective surface having a shape with an inclined portion inclined to a lower side in the front-back direction in the vehicle-mounted state across an edge side on the front in the front-back direction and internally reflecting the light reflected by the first reflective surface toward the front in the front-back direction, and an emission surface that emits the light internally reflected by the first reflective surface and the second reflective surface and emits a light distribution pattern to the front of the vehicle.

A laser-excited-phosphor light-source system in which a phosphor plate remains stationary while a laser beam is made to scan across the phosphor plate. In some embodiments, the phosphor-plate assembly includes a plurality of areas each having a different phosphor substance that emits wavelength-converted light in response to excitation from the scanned laser beam and/or a diffusive material. In some embodiments, one or more rotating prisms and/or one or more rotating or oscillating or angularly displaced mirrors are used to deflect the input laser light on the way toward the phosphor plate and to deflect the wavelength-converted and/or diffused light in the opposite direction such that the output beam of wavelength-converted and/or diffused light remains stationary with respect to the phosphor plate as the input laser beam is moved across the surface of the phosphor-plate assembly.