An optical waveguide structure includes an optical waveguide, a reflection film provided on the optical waveguide and reflecting a light propagating in the optical waveguide, a metal film provided on the reflection film, and a surface oxidized film provided on the metal film and generated by surface oxidation of the metal film.

An illuminated container for the growth of biological entities is provided. The container is illuminated by a flexible light diffusing fiber. The light diffusing fiber includes a core formed from a silica-based glass and a cladding in direct contact with the core. The light diffusing fiber also includes an outer polymer coating layer surrounding the cladding, the outer polymer coating layer being the cured product of a liquid polymer blend including a scattering material and a luminophore.

A light diffusing device is provided. The light diffusing device includes a light diffusing element and an outer polymer coating layer surrounding the light diffusing element, the outer polymer coating layer being the cured product of a liquid polymer blend including a scattering composition and a luminophore.

A windshield (window glass for a vehicle) 10 is a window glass for a vehicle emitting visible light through incident radiation of excitation light that is irradiated from a light source, and an end part 10E of the window glass for a vehicle is capable of emitting light through irradiation with the excitation light. The present invention can provide window glass for a vehicle such as a car that enables a driver to easily check warning display without narrowing the interior space or obstructing the field of view in the vehicle.

Provided is a wavelength conversion member, including: a quantum dot phosphor; and a resin cured product which includes the quantum dot phosphor and which contains an alicyclic structure and a sulfide structure.

A light guide plate includes a bottom surface and a light emitting surface disposed opposite to the bottom surface. The light emitting surface sags down and forms a hollow, which is filled with a plurality of light-emitting quantum dots (QDs). The light emitting surface capped with a cover film, so to seal the plurality of light-emitting QDs in the hollow. Also provided are a backlight module including the light guide plate and a liquid crystal display using the backlight module. The hollow that is formed in the top surface of a flat body of the light guide plate and filled with light-emitting QDs helps enhance the color gamut of the display backlight. Further, side walls that surround the hollow can be narrowed so as to easily realize a narrow edge design for the backlight module.

A light guide plate includes a bottom surface and a light emitting surface disposed opposite to the bottom surface. The light emitting surface sags down and forms a hollow, which is filled with a plurality of light-emitting quantum dots (QDs). The light emitting surface capped with a cover film, so to seal the plurality of light-emitting QDs in the hollow. Also provided are a backlight module including the light guide plate and a liquid crystal display using the backlight module. The hollow that is formed in the top surface of a flat body of the light guide plate and filled with light-emitting QDs helps enhance the color gamut of the display backlight. Further, side walls that surround the hollow can be narrowed so as to easily realize a narrow edge design for the backlight module.

An improved waveguide is disclosed. The waveguide utilizes a luminescent material disposed within or around its perimeter to introduce additional light into the waveguide. For example, the waveguide may include a plurality of planar layers having different refractive indexes. A luminescent material may be disposed along the outer edge of these layers. When light from within the waveguide strikes the luminescent material, it emits light, thereby adding to the light in the waveguide. Not only does the luminescent material introduce more light into the waveguide, it also introduces more light sources, thereby making it more difficult to introduce a probe without blocking at least a portion of the light destined for the image sensor. The luminescent material may be a phosphor.

A backlight unit for a liquid crystal display device including a liquid crystal panel, includes: a light source including a light-emitting diode (ED) which generates and emits light; and a light converting layer between the light source and the liquid crystal panel, spaced apart from the light source, and converting the light from the light source into white light and emitting the white light toward the liquid crystal panel. The light converting layer includes: semiconductor nanocrystals, and a barrier material which restricts penetration of moisture or oxygen.

A lighting device (20, 40) is disclosed. The lighting device (20, 40) comprises a segmented light guide (19), comprising a plurality of segments (21, 22), where each segment (21, 22) may be pumped with light via respective first light in-coupling surfaces located on a lateral surface of the light guide (19), and where each of the segments (21, 22) is configured to convert at least a part of light input therein into light having a selected wavelength range. The light guide (19) extends in an axial direction between a first base surface (25) at one end (23) of the light guide (19) and a second base surface (26) at another end (24) of the light guide (19), the first base surface (25) and the second base surface (26) being located on different ones of the segments (21, 22). At least a portion of the first base surface (25) comprises a second light in-coupling surface for coupling of light into the light guide (19) and at least a portion of the second base surface (26) comprises a light out-coupling surface for coupling of light out of the light guide (19). The lighting device (20, 40) comprises at least one first light-emitting element (29) configured to emit light of a first wavelength range and being optically coupled to the second light in-coupling surface such that light emitted by the at least one first light-emitting element (29) is coupled into the light guide (19) via the second light in-coupling surface, wherein the at least one first light-emitting element (29) is configured so as to reflect at least part of incident light thereon having a wavelength within at least one of the selected wavelength ranges back into the light guide (19).