METHOD OF CONTROLLING DIRECTED LIGHT TRANSMISSION Russian patent published in 2014 - IPC G02B5/20 E06B9/24 G02B1/10 

FIELD: physics.

SUBSTANCE: method involves defining surfaces of a glass structure to be made in form of alternating parallel and/or curvilinear strips, while also determining coefficients of reflection, transmission and absorption, refraction indices, geometric shapes and dimensions of the strips and the required change in said parameters both along and across the strips, as well as the need to distribute the strips into zones with different light transmission characteristics so that, at given angles or ranges of incidence angles of rays, only the required part of rays of the required wavelength range passes in a directed manner through the entire glass surface. For each angle of incidence in the 0-90° range, the total percentage of directed light transmission is calculated as a ratio of the total area of the output surface, through which rays pass, to the area of the whole first receiving surface, and strips are made on surfaces of the glass structure by further processing the outer surface of the glass and/or gluing a film with strips made in advance, and/or by placing in laminated glass between layers.

EFFECT: providing selective control, according to a predetermined law, of values of light flux and direction of rays passing through a glass structure depending on angles of incidence.

8 cl, 12 dwg