Orthographic projection optical microstructural curtain combining condensing lenses with perovskite thin-film solar cell

Abstract

The invention provides an orthographic projection optical microstructural curtain combining condensing lenses with perovskite thin-film solar cell. A layer of the perovskite thin-film solar cell is fixed to a PET substrate layer, the triangular condensing lenses which are distributed in an array mode are fixed to the perovskite thin-film solar cell, and the each triangular condensing lens has a fan-shaped longitudinal section and is composed of an attaching face attached to the thin-film solar cell, a spherical condensing face for achieving condensation and a lower inclined face located under the condensing face, wherein a UV light-oil layer is arranged on the lower inclined face; when outside environmental light irradiates the triangular condensing lenses, the condensing faces condense the light and transmit the light to the thin-film solar cell, the thin-film solar cell absorbs the light and converts absorbed solar energy into electric energy, and therefore energy conversation and environment protection are achieved. The curtain can greatly improve the absorption capacity on environmental disturbance light, and therefore the curtain can reduce projection pictures at high contrast and high saturation degree in a bright environment.

Description

technical field [0001] The present invention provides an optical microstructure curtain, in particular, a front projection optical microstructure combined with a concentrating lens and a perovskite thin film solar cell capable of resisting external environmental light interference and simultaneously absorbing light energy and converting it into electrical energy. A structural screen belongs to the technical field of optical materials. Background technique [0002] Under the influence of sunlight or lighting, the contrast and saturation of the projected image will be greatly reduced, and the color reproduction is not ideal. Therefore, it is particularly important to solve the interference of ambient light on the projection effect when using a projection screen in a high-brightness environment. [0003] Among the existing optical curtains, the U.S. invention patent US6842282B2 adopts the structure combining the glass bead layer and the grating layer, adopts the traceable refle...

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Problems solved by technology

[0003] Among the existing optical curtains, the U.S. invention patent US6842282B2 adopts the structure combining the glass bead layer and the grating layer, adopts the traceable reflection characteristics of the glass bead, and absorbs part of the ambient light with the blackened side wall of the grating, which improves the projected image. However, due to the inherent characteristics of the traceability of glass beads, part of the reflected light deviates from the direction too much, the brightness of the projected image drops sharply, and the brightness of the screen is seriously lost.

The invention patent CN104062839A of Chengdu Pfister Technology Co., Ltd. adopts the structure combining metal dielectric specular reflective film, microprism array structure layer and diffuse reflection layer, and adds an absorbing layer on one side wall of the microprism array structure layer to absorb ambient light. The metal dielectric mirror reflective film is used to increase the picture gain due to its extremely high specular reflectance, so that the projected picture has a good contrast, but the light absorbing layer material used in this invention has a relatively low light absorption efficiency. In a high-brightness outdoor environment, the environment The impact of light on the projection screen is still relatively serious, and the contrast and color reproduction of the screen are greatly affected. The light reflected from the metal medium mirror reflective film cannot all enter the diffuse reflection layer, which causes some light to be lost, which affects the projection effect. have a greater impact

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