Embodiments of the disclosure generally relate to methods of forming gratings. The method includes depositing a resist material on a grating material disposed over a substrate, patterning the resist material into a resist layer, projecting a first ion beam to the first device area to form a first plurality of gratings, and projecting a second ion beam to the second device area to form a second plurality of gratings. Using a patterned resist layer allows for projecting an ion beam over a large area, which is often easier than focusing the ion beam in a specific area.

A light fixture with a single edge lit optical assembly produces various light distributions which provide targeted control of light output with peak intensity that is non-normal to the light guide output face. The compact form factor of light fixture embodiments having narrow width are particularly well-suited for use in linear lighting applications requiring suspended, surface and recessed installations typically used to illuminate walls, floors and/or ceilings. The light fixture can also be selectively configured and oriented during assembly and installation to achieve various lighting distributions including asymmetrical and symmetrical with one or more peak intensities. Optical components within the light fixture are typically positioned and retained in optical alignment with internal support features of a linear housing. The optical assembly typically includes LED board, light guide, and one or more reflectors, and an optically transmitting component further providing a fixture assembler a range of design choices.

A light-transmissible element and a lamp device using the light-transmissible element are provided. The light-transmissible element includes a light-inputting surface, a first light-outputting surface, a second light-outputting surface and plural microstructures. The first light-outputting surface and the second light-outputting surface are located beside two opposite sides of the light-inputting surface. The plural microstructures are formed on the second light-outputting surface. The plural light beams from the light-inputting surface are received and refracted by the plural microstructures. Consequently, a luminous flux of the light beams received and refracted by each first refractive surface is higher than a luminous flux of the light beams received and refracted by each second refractive surface. Due to this design, the light extraction efficiency of the overall lamp device is increased, the light output range is adjustable and the generation of the light spots is reduced.

A tray module includes a tray in which a plurality of display device components are alternately stackable with a plurality of protective sheets. Each of a protective sheet among the plurality of protective sheets includes: a first polymer layer including a first polymer resin which is foamed, and top and bottom surfaces opposite to each other; a second polymer layer on each of the top and bottom surfaces of the first polymer layer, the second polymer layer including a second polymer resin; and a paper layer defining an outer surface of the protective sheet.

A backlight source packaging device is provided in the present disclosure, which belongs to the technical field of displays. The backlight source packaging device includes a bracket, a feeding mechanism, a cleaning mechanism, a cutting mechanism and a rotating mechanism, where the feeding mechanism is fixed to the bracket, which is configured to arrange a winding film; the cleaning mechanism is fixed to the bracket, which is configured to clean the winding film; the cutting mechanism is fixed to the bracket, which is configured to cut the winding film; the rotating mechanism is fixed to the bracket, which is configured to drive the backlight source to rotate so that the winding film winds around the backlight source, where the winding film can reach the rotating mechanism from the feeding mechanism successively through the cleaning mechanism and the cutting mechanism.

Provided are a light guide plate, an area light source device, a display device, and manufacturing method for the light guide plate such that the occurrence of uneven luminance is suppressed. The light guide plate is characterized in that the light guide plate has a light entrance surface through which light enters, a light exit surface intersecting with the light entrance surface and through which light is output, and an opposite surface facing the light entrance surface, wherein the light entering through the light entrance surface is guided to the opposite surface side and output from the light exit surface, and the refractive index Nx in a direction perpendicular to the light entrance surface is higher than the refractive index Ny in a direction parallel to the light exit surface and parallel to the light entrance surface.

A keyboard includes a base plate, a plurality of keys and a backlight module. The base plate has a short axis direction and a long axis direction. The keys are disposed on the base plate. The backlight module is disposed on the base plate and includes a shielding sheet, a light guide plate and a reflecting sheet. The light guide plate is disposed on a lower surface of the shielding sheet. The light guide plate includes a plurality of light guide structures corresponding to the keys respectively. Each of the light guide structures includes a ring portion and at least one bend line portion. The bend line portion connects to the ring portion, and the ring portion is formed by a plurality of bending portions. The reflecting sheet is disposed below the light guide plate.

The present invention relates to a light guide plate containing a glass plate and a resin layer that is formed on at least one major surface of the glass plate, in which the resin layer is made of a resin containing metal oxide fine particles dispersed, and an absolute value of a refractive index difference between the glass plate and the resin layer is 0.07 or smaller over an entire range of a wavelength of 430 nm to 700 nm.

An antifouling layer stack comprising a first layer element, a silicone layer, and a second layer element. The silicone layer is a light guide for UV radiation, and may include embedded UV light sources. The first layer element is situated on a first surface of the silicone layer, and the second layer element is situated on a second surface of the silicone layer. The first and second layer elements differ in composition from the silicone layer. The first layer element facilitates transmission of the UV radiation from the silicone layer to an external medium, and may provide protection and improve the structural integrity of the stack. The second layer element may also provide protection and structural integrity. The second layer element may be reflective, and may provide an adhesive surface for attaching the stack to a vessel.

An integrated optically functional multilayer structure includes a flexible, substrate film arranged with a circuit design including at least a number of electrical conductors on the substrate film; and a plurality of top-emitting, bottom-installed light sources provided upon a first side of the substrate film to internally illuminate at least portion of the structure for external perception via associated outcoupling areas, wherein for each light source of the plurality of light sources there is optically transmissive plastic layer, produced upon the first side of the substrate film, said plastic layer at least laterally surrounding the light source, the substrate film at least having a similar or lower refractive index therewith; and reflector design including at least one material layer, provided at least upon the light source and configured to reflect the light emitted by the light source and incident upon the reflective layer towards the plastic layer.