Abstract: The present invention provides a microchannel matrix optical waveguide plate, which is formed by stacking two optical element groups perpendicularly. Each of the optical element groups is composed of a plurality of parallel-arranged optical elements. Each of the optical elements includes a glass substrate. The glass substrate is divided into an air surface and a reflecting surface. A first metal film layer, a magnetic material film layer and a second metal film layer are sequentially arranged on the air surface. The present invention uses magnetic material attraction to replace an adhesive to achieve tight fitting of optical elements, thus reducing the influence of the adhesive on reflected light of optical elements. The fabricated microchannel matrix optical waveguide plate has the characteristics of high imaging definition and simple fabrication process.

Abstract: An optical imaging element and a preparation method are provided. The optical imaging element includes a plurality of superimposed optical imaging units. The optical imaging unit includes an upper light-transmitting laminate and a lower light-transmitting laminate. Both the upper light-transmitting laminate and the lower light-transmitting laminate are composed of a plurality of light-transmitting strips with reflective layers in parallel. The direction of a first light-transmitting strip in the upper light-transmitting laminate is vertically intersected with the direction of a second light-transmitting strip in the lower light-transmitting laminate. The reflective layer is a sandwich laminated metal magnetic thin layer, including a first metal aluminum layer, a central magnetic layer, and a second metal aluminum layer.