5 results about "Optical buffer" patented technology

Provided in the present disclosure are a display panel and a display device. The display panel comprises: a base substrate and a plurality of light-emitting devices arranged on the base substrate, wherein each light-emitting device comprises an internal micro-cavity structure and an external micro-cavity structure; each external micro-cavity structure is located between the corresponding internal micro-cavity structure and the base substrate; each internal micro-cavity structure comprises a first electrode layer, a light-emitting functional layer and a second electrode layer, which are stacked in sequence in a direction away from the base substrate; and each external micro-cavity structure comprises a total reflection layer, an optical buffer layer and a semi-transparent and semi-reflective layer made of a metal material, which layers are stacked in sequence in the direction away from the base substrate.

Disclosed in the present invention is an optical spectacle lens, comprising a lens body, wherein the lens body is provided with an optical central zone, an optical buffer zone and an optical edge zone; the optical central zone is arranged at the center of the lens body, the optical central zone serving the function of vision correction, and the optical central zone being circular or octagonal in shape; the optical buffer zone is formed by providing two or more focal points of asymmetric curvature; and the optical edge zone is configured as the area in the lens body that extends to the edge of the lens body, other than the optical central zone and the optical buffer zone. The present invention has a simple structure and rational design; the overall design makes the contrast of artificial light entering the eyes significantly low, thereby controlling the progression of myopia; moreover, by means of an image point design, an optical path falls in front of the retina, thereby inhibiting ocular axial elongation.

The application relates to a myopia prevention and control optical lens based on zoning modulation and edge fusion, and belongs to the technical field of optical lenses. An optical function zone is sequentially provided with a central optical zone, an annular defocus zone and a point-shaped nano lithography point zone from the center of the lens outward, the central optical zone accurately corresponds to the macular fovea region of the retina, the annular defocus zone is arranged with concentric annular defocus microstructure units, and the point-shaped nano lithography point zone is arranged at the periphery of the annular defocus zone and the gap between the annular zones, and serves as an optical buffer zone to soften the optical transition edge.

The invention provides a long and short parallel optical buffer based on a multi-core optical fiber, and belongs to the technical field of optical communication buffer. The long-short parallel optical buffer is composed of a multi-core optical fiber, an optical circulator, a multi-core optical fiber fan-in and fan-out device, an erbium-doped amplifier and an optical switch, the optical circulator, an optical path switch and a fiber core of the same multi-core optical fiber are utilized to construct two optical signal circulation loops suitable for different delay demand characteristics, and the long-short parallel optical buffer is formed. According to the invention, the long and short parallel optical buffers are constructed by using the fiber cores in the multi-core optical fiber, and the optical path circulation loss characteristic is considered based on the characteristics of small spacing and low crosstalk between the fiber cores of the multi-core optical fiber; a plurality of fiber cores in the same multi-core optical fiber are creatively utilized to construct an optical signal circulation loop with adjustable time delay as a long cache loop, and a single fiber core is utilized to construct an optical signal circulation loop with adjustable time delay as a short cache loop, so that adjustable time delay and efficient cache of optical signals are realized.

The application relates to the technical field of chip integrated optoelectronic devices, in particular to a chip integrated optical buffer and a working method thereof. The chip integrated optical buffer comprises an optical waveguide device for inputting and outputting optical signals; a micro-ring resonant cavity capable of resonating at a specified resonant frequency; and an optical loop, which is located in two different directions of the micro-ring resonant cavity and is coupled with the micro-ring resonant cavity. The chip integrated optical buffer and the working method thereof provided by the application realize the optical switch function through the regulation of the resonant frequency of the micro-ring resonant cavity, realize power exchange between the micro-ring resonant cavity and the optical loop by using the mode coupling principle, the two do not contact, the micro-ring resonant cavity does not need to be directly connected into the optical loop, the influence of the optical switch on the optical loop loss is greatly reduced, and the storage time of the chip integrated optical buffer is improved.