A waveguide illuminator includes an input waveguide, a waveguide splitter coupled to the input waveguide, and a waveguide array coupled to the waveguide splitter. The waveguide array includes an array of out-couplers out-coupling portions of the split light beam to form an array of out-coupled beam portions for illuminating a display panel. To reduce optical interference, the waveguide illuminator may have two interlaced waveguide arrays energized by two different light sources. Output polarizations of neighboring light pixels of a display illuminated with such waveguide illuminator may be orthogonal to each other. The frames to be displayed may be broken down into sequentially displayed sub-frames with interleaved pixels.

An under-counter lighting system places a light-guide panel (LGP) or a set of LGPs under a countertop, or another such work surface, in order to backlight it. Specifically, a base layer is secured to a support, such as a cabinet. The base layer includes a support layer and a number of support posts attached to the support layer. An LGP layer includes the LGP or LGPs. Each of the LGPs has openings that correspond to positions of the support posts, such that the LGPs receive the support posts through their thicknesses. A countertop is secured to the tops of the support posts and may have a depending lip or other such feature sufficient to hide the base layer and the LGP layer. The resulting light, usually at least partially transmitted through the countertop itself, can serve as ambient light, task light, or accent light, depending on the installation.

To improve luminance of image information visually recognized by a user while using plastic for a light guide plate. An image display element includes: a plastic substrate; an incident diffraction grating integrally formed on a surface of the plastic substrate and configured to diffract incident video light; an emission diffraction grating integrally formed on a surface of the plastic substrate and configured to emit the video light; and a coating layer formed on the emission diffraction grating and having a thickness of 10 nm or more and 1000 nm or less and a refractive index of 1.64 or more and 2.42 or less.

According to one embodiment, an illumination device, in which a plurality of light guides include a plurality of light guide pairs, each of the plurality of light guide pairs includes a first light guide and a second light guide, the plurality of light guide pairs are connected with their long sides opposed to each other, a plurality of laser light source elements include a plurality of first light source elements arranged to be opposed to a first side surface on a short side of the first light guide of the light guide pair, and a plurality of second light source elements arranged to be opposed to a second side surface of the second light guide of the light guide pair.

A composite optical film comprises: a first substrate; a plurality of reversed prisms disposed on a bottom surface of the first substrate; and a first diffusion film disposed over a top surface of the first substrate.

An optical lens system for vehicle lighting includes a light guide with optical elements arranged as indentations in a light impacting surface of the lens body. The optical elements are configured with a truncated cone section arranged within the lens body in connection to the light impacting surface, and a rounded cap section arranged within the lens body in connection to the truncated cone section. A base surface of the rounded cap section is coincident with a top surface of the truncated cone section. The truncated cone section has an outer surface and a base surface, and the rounded cap section includes an outer surface. A cross-sectional transition between the outer surface of the truncated cone section and the outer surface of the rounded cap section is non-linear.

A backlight module includes a light guide plate, a light source, multiple first optical microstructures, and multiple second optical microstructures. The first optical microstructures and the second optical microstructures are disposed on the bottom surface of the light guide plate. Each of the first optical microstructures has a first light receiving surface facing the light source.

Each of the second optical microstructures has a second light receiving surface facing the light source. A first angle is included between the first light receiving surface and the bottom surface. A second angle is included between the second light receiving surface and the bottom surface. The second angle is different from the first angle. A display apparatus adopting the backlight module is also provided.

An optical waveguide system and an electronic device are disclosed. The system comprises: a waveguide; an input coupler coupling a light into the waveguide; and an output coupler, wherein the input coupler includes a right portion and a left portion, wherein the right portion includes stacked first and second polarization volume gratings, the left portion includes stacked third and fourth polarization volume gratings. The first and fourth polarization volume gratings are polarization volume gratings optimized for a right-hand-side field of view of the light, and the third and second polarization volume gratings are polarization volume gratings optimized for a lefthand-side field of view of the light.

A vehicle panel including a perforated pattern and a method of manufacturing the same, whereby a pattern can be realized through minimal means and a simple method, thereby reducing the amount of time taken and the expense incurred for the production of a product. Additionally, large-area patterning is possible, so the method can be applied to large parts. Moreover, the vehicle panel is capable of realizing a uniform lighting pattern without variation in luminance. When power is turned off, only a perforated pattern is viewed and, when power is turned on, a logical pattern with various designs is viewed, advantageously improving the aesthetic appearance of metal parts.

Provided is an augmented reality device including a display element configured to generate a first image, an optical coupler including a first surface through which the first image is input and a second surface opposite the first surface and configured to output light that is input through the first surface to the second surface and output light that is input through the second surface to the first surface, a reflective polarizer provided on the side of the second surface of the optical coupler and configured to reflect light with a first polarization and transmit light with a second polarization different from the first polarization, and a polarization selective variable focus lens provided in a traveling path of the light with the first polarization reflected by the reflective polarizer and having variable refractive power with respect to the light with the first polarization.