G02B17/002

NEAR-EYE DISPLAY AND NEAR-EYE DISPLAY SYSTEM
20200018969 · 2020-01-16 ·

A near-eye display and a near-eye display system are provided. The near-eye display includes a display panel, a collimation lens component, and an optical redirector. The display panel includes a plurality of pixels that are disposed in a tiling manner. The collimation lens component includes a plurality of collimation lenses, and the plurality of collimation lenses are in a one-to-one correspondence with the plurality of pixels. Each of the plurality of collimation lenses is configured to: convert, into collimated light, light emitted by a corresponding pixel, and input the collimated light into the optical redirector. The optical redirector includes a plurality of light convergence structures, and the plurality of light convergence structures are in a one-to-one correspondence with the plurality of collimation lenses. Each of the plurality of light convergence structures is configured to converge, on a focus of the near-eye display, collimated light input by a corresponding collimation lens.

LENS ARRAY
20240103203 · 2024-03-28 ·

A lens array includes an edge lens region provided with multiple first type lenslets, a middle lens region provided with multiple second type lenslets and a center lens region provided with multiple third type lenslets. One of the first type lenslets has a first curved surface with a first vertex, one of the second type lenslets has a second curved surface with a second vertex, and one of the third type lenslets has a third curved surface with a third vertex. A first tangent plane to the first curved surface at the first vertex, a second tangent plane to the second curved surface at the second vertex, and a third tangent plane to the third curved surface at the third vertex are parallel to or coincide with each other.

OPTICAL ANTI-COUNTERFEITING ELEMENT AND PRODUCT
20240092114 · 2024-03-21 ·

Provided are an optical anti-counterfeiting element and a product thereof, the optical anti-counterfeiting element includes: a substrate; a reflective curved mirror array, located on a surface of the substrate; and a micro graphic-text array, formed on the reflective curved mirror array, the micro graphic-text array and the reflective curved mirror array are located in a same plane and are overlapped without an interval, and after the reflective curved mirror array samples to synthesize the micro graphic-text array with a coupling effect with the same, a dynamic effect is formed.

Image compensation device for image for augmented reality
11927733 · 2024-03-12 · ·

The present invention relates to an image compensation device for an image for augmented reality. The image compensation device includes: a compensation function determination unit configured to determine a compensation function for compensating the luminance information of an observed image observed by a user through an optical device for augmented reality when an original image for augmented reality is output from an image output unit; and a pre-compensated image information generation unit configured to generate pre-compensated image information for augmented reality based on the compensation function determined by the compensation function determination unit and original image information for augmented reality. The image output unit outputs pre-compensated augmented reality image light corresponding to the pre-compensated image information for augmented reality, and the plurality of reflective units transfer the pre-compensated augmented reality image light to the pupil of the user by reflecting the pre-compensated augmented reality image light.

LENS MIRROR ARRAY, OPTICAL DEVICE, AND IMAGE FORMING APPARATUS
20240080401 · 2024-03-07 ·

An optical element of a lens mirror array according to an embodiment includes an incident-side lens surface, a first reflection surface, a second reflection surface, an emission-side lens surface, a first positioning surface, and a second positioning surface. The incident-side lens surface refracts and converges incident light. The first reflection surface reflects light made incident via the incident-side lens surface. The second reflection surface reflects the light reflected by the first reflection surface. The emission-side lens surface emits the light reflected by the second reflection surface. The lens mirror array is a lens mirror array in which a plurality of optical elements are arrayed in a direction orthogonal to optical axes of the incident light and the reflected light and parallel to the first positioning surface.

Optical zoom system using an adjustable reflective fresnel lens implemented with a micro-electro-mechanical system (MEMs) micro-mirror array (MMA)

A zoom system includes a collection optic L1 and a reflective Fresnel Lens L2 having a variable focal length. The reflective Fresnel Lens L2 is implemented with a MEMS MMA in which the mirrors tip, tilt and piston form and alter the reflective Fresnel Lens to focus light at a common focal point to set the variable focal length f2, hence the magnification M. In different embodiments, the zoom system may be configured to be focal or afocal. In the focal system, both L1 and L2 are fixed such that the system affects the net convergence or divergence of the magnified beam. In an afocal system, a mechanism is used to translate L2 to maintain a separation between L1 and L2 of d=f1+f2 as f2 is varied to change the magnification M.

Multichannel close-up imaging device
11892612 · 2024-02-06 · ·

A device for optically imaging at least a part of an object, the device having an optical axis and including a two-dimensional first array of first microlenses, having a first side intended to face the object, and a second side, opposite the first side, a two-dimensional second array of second microlenses, each first microlens being aligned with a second microlens on an axis parallel to the optical axis, wherein each first microlens comprises a first catoptric system, and preferably a first catadioptric system.

Collimated, directional micro-LED light field display

Embodiments described herein provide for light field displays and methods of forming light field displays where micro-LED arrays are each configured to provide at least a macro-pixel of effective native hardware resolution, where each macro-pixel provides single pixel of spatial resolution and plurality of pixels of angular resolution, and where each pixel of angular resolution includes a plurality of sub-pixels each provided by a directional collimating micro-LED device described herein.

High bay lamp
D0868333 · 2019-11-26 · ·

LENS MIRROR ARRAY AND IMAGE FORMING APPARATUS USING THE SAME
20190354035 · 2019-11-21 ·

A lens mirror array includes a plurality of optical elements connected to each other and aligned along one direction. Each of the optical elements comprises a first lens surface on which light is incident, a first reflection surface on which the incident light is reflected within the optical element, a second reflection surface on which the reflected light is further reflected within the optical element, a second lens surface through which the light reflected by the second reflection surface is emitted outside the optical element, and a protruding portion having a plurality of surfaces and connected to the first lens surface and the second reflection surface. One of the surfaces of the protruding portion inclined with respect to a direction of light incident on the protruding portion has a prism structure.