摘要:
A lighting system (1) comprises a light source (2) for providing a light beam (3) of directed non-diffused light along a main light beam direction (4). The light source (2) comprises a light emitting unit (100) with a light emission pattern, and an optical system (2A) for receiving and collimating light. The optical system (2A) comprises a collimation unit (200) comprising at least one parabolic interface (220, 230), and a homogenization unit (300) for homogenizing the light emerging from the collimation unit (200). The lighting system (1) comprises further a window-like unit (6) configured as a diffused light generator (20) for generating diffused light.
摘要:
Chromatic components are presented which alleviate the usage in various applications in that this chromatic component is, according to a first aspect of the present application, made-up of a mirroring surface and a diffusing layer in front of the mirroring surface, which preferentially scatters short-wavelength components of impinging light with respect to long-wavelength components of the impinging light, and in that according to another aspect, the chromatic component is made up of a stratified-glass panel which comprises two less sheets sandwiching an adhesive transparent polymeric film wherein the adhesive transparent polymeric film forms a diffusing layer which preferentially scatters short-wavelength components of fight passing the stratified-glass panel with respect to long-wavelength components of this light with respect to long-wavelength components of the same.
摘要:
A method of manufacturing a reflective sheet includes preparing a film comprising first and second skin layers (178, 179) and a reflective layer (166) disposed between the first and second skin layers (178, 179) through a meltextrusion process; injecting CO 2 gas into the film and forming (S32) a plurality of air bubble layers (176) in the reflective layer (166) through a foaming process; forming (S34) the first and second skin layers (178, 179) having an embossing surface by pressing the film; and cutting (S36) the reflective sheet (166) comprising the first and second skin layers (178, 179) having an embossing surface using a die cutting process.
摘要:
In an aspect, an illumination system (100) is disclosed to comprise a light source (102) configured to generate a light beam (103), and a chromatic reflective unit (1) for being illuminated by the light beam (103). The chromatic reflective unit (1) comprises a plurality of non-coplanar reflective surface sections (3′), and a chromatic diffusing layer (5) comprises a plurality of nanoparticles (37) embedded in a matrix (39), wherein the chromatic diffusing layer (5) is provided upstream of the plurality of reflective surface sections (3′) such that at least a portion of the light beam (103) passes through the chromatic diffusing layer (5) before and after being reflected by the plurality of non-coplanar reflective surface sections (3′). Chromatic diffusing layer (5) is further configured to provide for—together with non-coplanar reflective surface sections (3′)—a specular reflectance that is larger in the red than in the blue and for a diffuse reflectance that is larger in the blue than in the red.
摘要:
Transparent displays enable many usefiil applications, including heads-up displays for cars and aircraft as well as displays on eyeglasses and glass windows. Unfortunately, transparent displays made of organic light-emitting diodes are typically expensive and opaque. Heads-up displays often require fixed light sources and have limited viewing angles. And transparent displays that use frequency conversion are typically energy inefficient. Conversely, the present transparent displays operate by scattering visible light from resonant nanoparticles with narrowband scattering cross sections and small absorption cross sections. More specifically, projecting an image onto a transparent screen doped with nanoparticles that selectively scatter light at the image wavelength(s) yields an image on the screen visible to an observer. Because the nanoparticles scatter light at only certain wavelengths, the screen is practically transparent under ambient light. Exemplary transparent scattering displays can be simple, inexpensive, scalable to large sizes, viewable over wide angular ranges, energy efficient, and transparent simultaneously.
摘要:
Solar light redirecting glazing units include light redirecting and light diffusing constructions. The solar light redirecting glazing units may include a glazing substrate, a visible light diffusing layer, and a light redirecting layer oriented such that incoming solar light contacts the visible light diffusing layer before contacting the light redirecting layer. The solar light redirecting glazing units may include a glazing substrate, a patterned visible light diffusing layer, and a light redirecting layer. The solar light redirecting glazing units may include two glazing substrates separated by an intervening space with a solar light redirecting layer disposed on one glazing substrate, and a visible light diffusing layer disposed on the other glazing substrate.
摘要:
An optical system (2A) is disclosed for receiving and collimating light, wherein the optical system (2A) comprises a collimation unit (200) comprising at least one parabolic interface (220, 230) that defines an inlet opening (212) and an outlet opening (214), wherein the at least one parabolic interface (220, 230) is configured to reflect light entering through the inlet opening (212) through the outlet opening (214) and limit the angular spread of the light to an acceptance angle (θCPC) associated with the at least one parabolic interface (220, 230); and a homogenization unit (300) for homogenizing the light emerging from the collimation unit (200), the homogenization unit (300) comprising a lens array with pairs of a first lens and a second lens, wherein the lens array is configured such that light from the outlet opening (214) collected by a first lens illuminates the respective second lens to provide for a continuously emitting output aperture.
摘要:
[Problem] Provided is a film for a transparent screen which can clearly display merchandise information, advertisement, or the like on a transparent partition or the like by projection without compromising the transmission visibility. [Solving means] A film for a transparent screen according to the present invention includes: a resin layer; and inorganic particles at least a portion of which is contained in an aggregated state in the resin layer, wherein primary particles of the inorganic particles have a median diameter of 0.1 to 50 nm and a maximum particle size of 10 to 500 nm, and the content of the inorganic particles is 0.015 to 1.2% by mass with respect to the resin.
摘要:
The invention relates to an illuminated glass panel of a motor vehicle (100) comprising: - a glass module having an edge and main external faces, said module comprising a first glass panel (1), made of mineral or organic glass, with refractive index n1 of at least 1.4, having first and second main faces (11, 12), - a light source (4) coupled to the glass module, preferably to the first glass panel, the glass module forming a guide for light emitted by the light source, - light extraction means comprising a diffusing layer with a width of at least 1 cm containing dielectric diffusing particles (51) linked by a transparent matrix (5) of refractive index n2 at least equal to n1 or such that n1-n2 is at most 0.15. The majority of the diffusing particles are microparticles, spaced apart and comprising a transparent shell made of a dielectric material and in contact with the transparent matrix, the shells surrounding a core with refractive index n3 of at most 1.15 and having a largest dimension, referred to as D3, in a range from 5 μm to 200 μm, the microparticles having a largest dimension, referred to as D', of less than 2D3.