Provided is a light-diffusing barrier film. The film is an integral film comprising a barrier layer, a base layer and a light-diffusing layer, sequentially. The film can prevent moisture penetration into a device such as an organic light emitting device, and also imparts a light-diffusing function to the device. In particular, the film can have excellent moisture blocking properties even after a roll-to-roll process.

A micro-optic cell design with a regularly spaced micro-lens array, having a series of randomly positioned lenslets that have been digitally overwritten, wherein the overwritten area is greater than 0 up to 100 percent fill, and wherein a light shaping diffuser pattern is placed on top of the lenslets of the micro-optic cell.

An antiglare film includes, in order: a substrate; a first layer; and a second layer with an uneven structure including elongated projection portions on a surface opposite to a substrate side and an arithmetic mean height Sa on that side of the substrate is 30 to 160 nm, an average distance between adjacent elongated projection portions is 5 to 80 μm, a content of particles having a particle diameter of 300 nm or more in the second layer is 0% to 0.1% by mass with respect to a total mass of the second layer, an average film thickness of the second layer is 0.3 to 3 μm, a haze of the antiglare film is 1% to 20%, and where a surface of the antiglare film on the opposite to the substrate side is rubbed 100 times with #0000 steel wool under a load of 1 kg/cm.sup.2, no scratch occurs.

A privacy display comprises a polarised output spatial light modulator, reflective polariser, plural polar control retarders and a polariser. A birefringent surface relief diffuser structure is arranged to transmit light from the display with high transparency and provide diffuse reflection of ambient light to head-on display users. In a privacy mode of operation, on-axis light from the spatial light modulator is directed without loss and with low diffusion, whereas off-axis light has reduced luminance and increased diffusion. Further, overall display reflectivity is reduced for on-axis reflections of ambient light, while reflectivity is increased for off-axis light. The visibility of the display to off-axis snoopers is reduced by means of luminance reduction, increased frontal reflectivity and diffusion of ambient light. In a public mode of operation, the liquid crystal retardance is adjusted so that off-axis luminance and reflectivity are unmodified.

The present invention relates generally to tessellated bezel light diffusers which act to disperse penumbral light providing more uniform and even illumination. The present invention also relates to luminaires employing an array of light sources with tessellated bezel light diffusers which act to eliminate edge and transition lighting effects providing more uniform and even illumination between LEDs and at the periphery of illuminated zones. The present invention also relates to luminaires employing LED arrays equipped with tessellated bezel light diffusers that provide very uniform illumination zones with more evenly dispersed transitional edge lighting than conventional luminaires.

An illumination device includes a display panel including a first surface on which an image is displayed, a second surface opposite to the first surface, display pixels interposed between the first surface and the second surface, and a transmitting window interposed between the first surface and the second surface. The illumination device further includes a light source disposed on a side of the second surface of the display panel, and emitting light toward the second surface, and a light transmitter interposed between the light source and the display panel, and transmitting the emitted light to the transmitting window, the transmitted light being incident on the second surface of the display panel and being transmitted through the transmitting window toward the first surface of the display panel. The illumination device further includes a diffuser diffusing the light transmitted through the transmitting window.

A transfer object comprises a substrate having one or more fine concave portions formed on a surface thereof. At least one of a sidewall and a bottom of each fine concave portion has an oscillation waveform satisfying at least one of the following oscillation waveform conditions: the oscillation waveform is continuous; the oscillation waveform is a composite waveform of a plurality of oscillation waveforms, and the plurality of oscillation waveforms are in phase with each other; fine concave portions of a plurality of rows are formed on the substrate, and oscillation waveforms of adjacent fine concave portions are in phase with each other; and fine concave portions of a plurality of rows are formed on the substrate, and oscillation waveforms of the fine concave portions are in phase with each other for every two pitches.

An optical element comprising a body having a surface, wherein the surface has a plurality of regions periodically arranged in a tessellation, and wherein each region of the plurality of regions has a random spatial distribution of microstructures is disclosed. An optical system comprises a light source; and the optical element is also disclosed. Methods of making and using the optical element and the optical system are also disclosed.

An apparatus and method for manufacturing phase masks for lens-less camera comprises: a light source; a digital image mirror that receives a two-dimensional map, reflects the light irradiated from the light source with different intensities for each location and outputs reflected light; a two-dimensional map generator for generating the 2D map for adjusting the intensity of reflected light for each position such that the phase mask has a unique pattern of a different height for each position from a point spread function acquired in advance depending on the purpose of use of the phase mask; and a material holder on which a photo-curable film is disposed that is irradiated with the reflected light and cured to different depths depending on the light intensity for each position of the irradiated reflected light.

The antiglare film of the present invention is provided with an antiglare layer having a haze value set in a range from 0.5% to 20%, transmission image clarity at an optical comb width of 0.5 mm is a value in a range from 60% to 96%, and, in a state where the antiglare film is mounted on a surface of a display, a standard deviation of luminance distribution of the display is a value in a range from 0 to 12.