G02B5/0294

METHOD OF MAKING LIGHT CONVERTING SYSTEMS USING THIN LIGHT TRAPPING STRUCTURES AND PHOTOABSORPTIVE FILMS
20230231067 · 2023-07-20 ·

The present invention relates to a method of making a light converting optical system. The method involves providing a first optical layer having a microstructured front surface comprising an array of linear grooves that reflect first light rays using total internal reflection and deflect second light rays using refraction. A thin sheet of reflective light scattering material is positioned parallel to the first optical layer. A second optical layer is provided with a microstructured front surface. A continuous photoabsorptive film layer comprising a light converting semiconductor material is positioned between the first optical layer and the reflective material, with a thickness less than the minimum thickness required for absorbing all light traversing through the film layer. The method further involves providing a light source and positioning the second optical layer on the light path between the light source and the photoabsorptive film layer.

Infrared shielding film and method for manufacturing the same

An infrared shielding film and a method for manufacturing the same are provided. The infrared shielding film includes an infrared absorbing layer and a first infrared reflecting layer disposed on a surface of the infrared absorbing layer. The infrared absorbing layer contains a uniform distribution of composite tungsten oxide particles that are present in an amount of 0.1% to 10% by weight based on the total weight of the infrared absorbing layer. The first infrared reflecting layer contains a uniform distribution of titanium oxide particles that are present in an amount of 0.1% to 10% by weight based on the total weight of the first infrared reflecting layer.

Light source lighting device and projection display apparatus

A light source lighting device includes: a laser light source unit; a converging lens that converges a plurality of light beams emitted from the laser light source unit; a diffuser plate that diffuses a plurality of light beams converged by the converging lens; and a second collimating lens that collimates a light beam diffused by the diffuser plate. The converging lens has an aspherical surface, the second collimating lens has a spherical surface, the aspherical surface of the converging lens has an aspherical surface coefficient that is set to cancel a positive spherical aberration of the second collimating lens. A luminous flux density in a proximity of an optical axis is lower than a luminous flux density in a peripheral part away from the optical axis, the optical axis being an axis of a light beam emitted from the second collimating lens.

Energy harvesting methods for providing autonomous electrical power to mobile devices

A method is provided that integrates an autonomous energy harvesting capacity in a mobile device in an aesthetically neutral manner. A unique set of structural features combine to implement a hidden energy harvesting system on a surface of the mobile device body structure or casing to provide electrical power to the mobile device, and/or to individually electrically-powered components in the mobile device. Color-matched, image-matched and/or texture-matched optical layers are formed over energy harvesting components, including photovoltaic energy collecting components. Optical layers are tuned to scatter selectable wavelengths of electromagnetic energy back in an incident direction while allowing remaining wavelengths of electromagnetic energy to pass through the layers to the energy collecting components below. The layers appear opaque when observed from a light incident side, while allowing at least 50%, and as much as 80+%, of the energy impinging on the energy or incident side to pass through the layer.

Illuminated two-piece exhibit
11555608 · 2023-01-17 ·

The present invention an illuminated two-piece exhibit includes a first arcuate arm, a second arcuate arm joined to the first arcuate end at a proximate end, an intermediary arc extends between the first arcuate arm and the second arcuate arm at a distal end, a diffusor configured for receiving a light source, a centrally located receptacle extending between the first arcuate arm and the second arcuate arm, a window extending from the centrally located receptacle through the first arcuate arm and the second arcuate arm, the diffusor extending from said centrally located receptacle and at least partially through the window wherein the diffusor is configured for illumination by the light source.

ARTICLES WITH THIN, DURABLE ANTI-REFLECTION COATINGS WITH EXTENDED INFRARED TRANSMISSION

An article is described that includes: a substrate having opposing major surfaces; and an optical film structure in direct contact with a first major surface and comprising a physical thickness from ˜50 nm to less than 500 nm, high refractive index (RI) and low RI layers with a first low RI layer directly on the first major surface, and a capping low RI layer. The high and low RI layers total three (3) layers to nine (9) layers, wherein each low RI layer and the capping low RI layer comprises a silicon-containing oxide and each high RI layer comprises a silicon-containing nitride or oxynitride. The article exhibits a Berkovich maximum hardness of 8 GPa or greater measured over an indentation depth ≥˜50 nm. The article exhibits a two-side average transmittance >85% at infrared wavelengths from 840 to 860 nm and from 930 to 950 nm at 0° incidence.

Optical laminated member

An optical laminated member having an antiglare hard coat layer and a clear hard coat layer sequentially laminated on at least one side of a transparent polymer substrate, the antiglare hard coat layer being a cured layer of a coating composition for forming an antiglare layer and having continuous random irregularities on its surface, and a ten-point average roughness Rz.sub.JIS of a surface of the antiglare hard coat layer is 0.1 to 2 μm, the clear hard coat layer is a cured layer of a clear hard coating composition, the clear hard coat layer is laminated on a part of the antiglare hard coat layer.

LAYERED BODY AND DISPLAY DEVICE

There are provided a layered body and a display device including the same, the layered body including a substrate layer and a resin layer disposed on at least one surface of the substrate layer, in which the resin layer contains a light scattering agent (A), and, when the surface tension of the substrate layer is indicated by σs (mN/m), and the surface tension of the resin layer is indicated by σr (mN/m), the following formula: |σs−σr|≤11.0 is satisfied.

Projection module and terminal

A projection module and a terminal are provided. The projection module includes a base, a housing, a first light source, a second light source and an optical element. The housing is disposed on the base, and defines an accommodating cavity together with the base. The first light source is disposed on the base and arranged in the accommodating cavity. The second light source is disposed on the base and arranged in the accommodating cavity. The optical element is disposed on the housing and includes a diffraction area and a diffusion area. The first light source aligns with the diffraction area, the second light source aligns with the diffusion area, the diffraction area is configured to diffract light passing through the diffraction area, and the diffusion area is configured to diffuse light passing through the diffusion area.

OPTICAL COMPONENT AND LIGHT-GUIDING SYSTEM

An optical component has: a planar liquid layer; and one or more light sources arranged such that light is guided to the planar liquid layer; wherein the liquid layer is configured to guide light.