A uniaxial optical multi-measurement imaging system includes an imaging lens column having an optical axis and configured to receive light from a scene from a single viewpoint. The imaging system also includes a light redistribution optic (LRO) in the shape of a thin pyramid shell with an apex. The LRO is centered along the optical axis with the apex pointing towards the imaging lens column. The LRO has planar sides with each side angled 45 degrees with respect to the optical axis and configured to reflect and transmit the light. The imaging system also includes a circumferential filter array (CFA) concentrically located around the LRO. The CFA is configured to filter the light reflected from or transmitted through the LRO. The imaging system includes multiple image sensors, each positioned to receive the light reflected from or transmitted through the LRO.

An optical arrangement, comprises first and second optical elements. The first optical plate is for collimating light from a light source to generate collimated light, which is provided to the second optical element. The second optical element acts an optical integrator homogenizing the light. The second optical element further generates a light output beam which has a spread of output angles which is dependent on the position. This means that the output spread of output angles can be controlled by controlling the light reaching the second optical plate and thus by controlling the illuminated area on the second optical plate. This can be achieved by selection of the relative positions of the source and the optical plates.

Dual-sided optical films have extended split spreading structures formed on one major surface, and extended prisms formed on an opposite major surface. One portion of each split spreading structure has a low light spreading characteristic, and another portion has a high light spreading characteristic. For each split spreading structure, the low light spreading portion may be disposed alongside the high light spreading portion. The split spreading structures may be arranged in a one-to-one correspondence with the prisms. Light that enters a given prism from one inclined surface thereof can be associated primarily with light transmitted through the low light spreading portion of the split spreading structure, and light that enters the given prism from the other inclined surface thereof can be associated primarily with light transmitted through the high light spreading portion.

A stereo display device includes plural projectors, a lens array, and a concave axicon lens array. The projectors project images to plural viewing regions at an image side. The lens array is disposed between the projectors and the image side. The concave axicon lens array is disposed between the lens array and the image side.

A method and a device for producing multi-view images optical films used therein are disclosed. The method and device use an optical film 2, comprising a superlens array 3 with between 0.5 to 225 superlenses per inch, formed by two arrays of positive microlenses which are fixed relative to one another. In order to produce a multi-view image 1 between a viewer 11 and the optical film 2, an array 10 of elemental images is arranged between the focal plane 9 of the superlenses 3 and the optical film 2.

An autostereoscopic display screen includes a light-deflecting component and a double-sided lenticular lens. The light-deflecting component is configured to deflect a light beam towards multiple directions. The double-sided lenticular lens includes a first cylindrical lens array, a second cylindrical lens array, and a central portion. The first cylindrical lens array includes first cylindrical lenses, in which each of the first cylindrical lenses has a first length in a first axial direction. The second cylindrical lens array includes second cylindrical lenses and at least one third cylindrical lens. The second cylindrical lenses have a second length in the first axial direction and the third cylindrical lens has a third length in the first axial direction, in which the first length is greater than the second length and the second length is greater than the third length. The central portion is disposed between the first and second cylindrical lens arrays.

A secure lens sheet or layer suitable for use in a micro-optic system, which is made up of a plurality of joined fine lens arrays (e.g., joined fine lenticular and/or joined fine non-cylindrical lens arrays), is provided. Each array has a lens pitch different from adjacent or contiguous arrays and/or is orientated in a direction different from adjacent or contiguous arrays. A micro-optic security device, which utilizes the inventive secure lens sheet and one or more overlying or underlying arrangements of micro-sized image icons (e.g., line data), is also provided. The image icon arrangement(s) and the secure lens layer are configured such that one or more synthetic images are projected by the security device. These projected images may show a number of different optical effects. With such a combination lens layer, some regions could be optically active when the device is tilted in one direction, some could be active when tilted in the opposite direction, and some areas could be active when the device is tilted in either (or any) direction. The inventive micro-optic security device may be partially embedded in and/or mounted on a surface of a security article (e.g., paper or polymer security document, label, card), or integrated therein.

Systems and methods are described for providing a 3D display, such as a light-field display. In some embodiments, a display device includes a light-emitting layer comprising an addressable array of light-emitting elements. An optical layer overlays the light-emitting layer. The optical layer includes a plurality of distributed lenses. In some embodiments, the distributed lenses include non-contiguous lens regions. In some embodiments, distributed lens regions with different optical centers are interlaced with one another. A spatial light modulator is operative to provide control over which lens regions transmit light from the light-emitting layer outside the display device. In some embodiments, the use of interlaced and/or non-contiguous distributed lenses provides improved display resolution with a reduction in diffraction effects.

The present disclosure relates to a micro-optic device for producing a magnified image, including: a first unitary structure on one side of a substrate, the first unitary structure including a first group of focusing elements and a first group of imagery elements, wherein one of the first group of focusing elements and the first group of imagery elements is recessed with respect to the other, wherein the device further includes at least a first coating of ink overprinted on the first unitary structure, to at least partially fill the recessed group of elements, and wherein a property of the ink provides a visual contrast in the magnified image.

The present invention relates to a micropattern layer based image film and a method for manufacturing the same. The image film comprises: a sacrificial layer; a first micropattern layer formed on the sacrificial layer; a second micropattern layer formed on the first micropattern layer; a focal length layer formed on the second micropattern layer; and a micro-image pattern formed on the focal length layer, wherein the first micropattern layer includes a plurality of concave parts extending in one direction, and concave curved surfaces of the plurality of concave parts are formed adjacent to the sacrificial layer; the second micropattern layer includes a plurality of convex parts extending in one direction, and convex curved surfaces of the plurality of convex parts are formed adjacent to the focal length layer; and the first micropattern layer and the second micropattern layer are orthogonal to each other.