The disclosure includes an object comprising a front lens layer made from at least one of transparent material or translucent material, having a lens with curved surfaces that provide refractive behaviors and a backing layer embedded with patterns. The disclosure also includes a method for designing an object with lenticular effects. The disclosure further includes a method for designing a textile for 3D printing. The disclosure also includes a candy or lollipop comprising a front layer comprising a plurality of at least one of elongated or standalone transparent geometries with defined heights, curvatures and shapes that provide refractive behaviors and a backing layer with at least one of colors or patterns. The disclosure also includes barrier-based object designs that create optical illusions.

A light field display device including: a display panel including a plurality of subpixels each emitting a light field; and a lenticular lens array on the display panel and including a plurality of lenticular lenses, wherein the plurality of lenticular lenses correspond to a plurality of subpixel groups each including the plurality of subpixels, and wherein a width of each of the plurality of subpixel groups is greater than a width of each of the plurality of lenticular lenses.

A micro-optic device, including: a substrate; a plurality of image elements; and a plurality of focusing elements, each focusing element focuses light towards, or causes light to be diverged from or constructively interfere at a real or imaginary focal point, the focusing elements causing the image elements to be sampled so as to project imagery which is observable to a user from at least a first viewing angle, wherein a first focusing structure including at least a first group of the focusing elements and a first imagery structure including at least a first group of the image elements are integrated into a first unitary structure on a first side of the substrate.

An objective for a microscope includes a displaceable lens group for correcting a spherical aberration. The displaceable lens group is designed in so that an offset of same in the direction perpendicular to the optical axis leads to only a small coma.

The present invention provides an asymmetric optical sensor device comprising: a light emitting unit for outputting light; a light receiving unit which receives the light reflected by an external object, and consists of a plurality of pixels which correspond to regions of different angles with respect to the light emitting unit and are arranged in a row; and a lens unit for diffusing the light from the light emitting unit. The light amounts received by the plurality of pixels are light amount values which are asymmetric with respect to the center of the light receiving unit.

The optical device includes: a beam radiation unit configured to radiate light; a first aspheric lens unit including a first focal point, the first aspheric lens positioned on a light output side of the beam radiation unit such that the first focal point is formed at a light output surface of the beam radiation unit on the light output side of the beam radiation unit; and second aspheric lens units including second focal points, the second aspheric lens units positioned on the light output side of the beam radiation unit such that the second focal points are formed to overlap the first focus at the light output surface of the beam radiation unit.

An extreme off-axis image projection system substantially compensates for image-quality-degrading aberrations typical to off-axis imaging systems. This is accomplished through the use of a free-form mirror in conjunction with both spherical and aspherical refractive elements and an off-axis placement of the input image source. In some embodiments, the off-axis image projection system contains a free-form mirror and a projection lens system with multiple lenses. The projection system projects light from an image source onto a surface (aka, projection surface). The projection surface is both close to the projector (in z) and extends away from the projector (in x and y).

The present invention provides a method for preparing a microgroove array surface with a nearly cylindrical surface based on an air molding method, and relates to the technical field of functional surface preparation. The method includes the following steps: (1) preparing a microgroove array surface, uniformly spreading a layer of a liquid polymer film to be formed on the auxiliary plate, and placing a spacer block in an empty position on the microgroove array surface; (2) placing the auxiliary plate spread with the liquid polymer film on the spacer block on the microgroove array surface, maintaining this state, and feeding the auxiliary plate into a vacuum drying oven; and (3), setting a pressure in the vacuum drying oven according to a designed pressure, heating and solidifying the liquid polymer film, and separating the microgroove array surface to obtain the microgroove array surface with the nearly cylindrical surface.

A layer on a substrate is laser annealed by pulses in a plurality of laser beams formed into a uniform line beam. The laser beams are partitioned into a first set of beams and a second set of beams. The second set of beams is incident onto the layer from a smaller range of angles than all of the beams combined. Pulses in the beams are synchronized such that pulses in the first set of beams are incident on the layer before pulses in the second set of beams. Pulses in the first set of beams melt the layer and pulses in the second set of beams sustain melting.

The light emitting assembly includes a substrate (1), a laser light source array, and a lens array. The laser light source array is disposed on the substrate (1), the lens array is disposed on a light emitting side of the laser light source array, one lens (3) in the lens array is disposed opposite to at least one laser light source (2) in the laser light source array, a light emitting surface of the lens (3) is a spherical surface, and at least some laser light sources (2) are eccentrically arranged with corresponding lenses (3). In a manufacturing process, lenses (3) of a same structure and laser light sources (2) of a same structure are used, and eccentric distances between the laser light sources (2) and the lenses (3) are changed, so that light emitting assemblies with different divergence angles can be prepared.