NOVELTY - The apparatus (100) has a sheet (110) with a material layer (115) made of stimuli-responsive material (SRM) (116) evenly distributed throughout the material layer. A solar radiation concentrating unit (120) i.e. lens array, concentrates solar radiation i.e. sunlight, directed onto the apparatus such that the radiation is concentrated in a focal zone (FZ). The material layer provides a sufficient quantity of the SRM such that half of the concentrated radiation is prevented by a preset portion from passing entirely through the sheet when a portion of the SRM in the zone is in a state.    USE - Self-adjusting solar light transmission apparatus.    ADVANTAGE - The material layer provides the sufficient quantity of the SRM such that half of the concentrated radiation is prevented by the predetermined portion from passing entirely through the sheet when the portion of the SRM in the focal zone is in the state so as to prevent undesirable high radiance areas, undesirable fluctuations of the lighting level and/or excessive solar heating. The sunlight concentrating member i.e. lens array, is positioned to focus sunlight at focal zone, and the SRM is evenly distributed throughout the material layer, so that the apparatus automatically generates light scattering regions in any portion of the material layer that coincides with the current focal points changed as the sun's position is changed throughout the day so as to provide a dynamically self-aligning mechanism that blocks direct sunlight while admitting diffuse light at all times during daylight hours effectively. The small volumes of focal zones enable fast heating, fast cooling and fast response of the optical properties to effectively suppress fluctuations in the transmitted light level. The apparatus places an SRM-bearing material layer between an upper transparent layer and a lower transparent layer to facilitate forming of a material layer using liquid or gel placed between the transparent layers, thus minimizing manufacturing cost of the apparatus while maximizing durability of the apparatus.    DETAILED DESCRIPTION - The SRM is selected from one of a temperature dependent material and a radiation responsive material.    DESCRIPTION OF DRAWING(S) - The drawing shows a simplified cross-sectional side view of a solar light transmission apparatus.    Focal zone (FZ)    Self-adjusting solar light transmission apparatus (100)    Sheet (110)    Material layer (115)    SRM (116)    Solar radiation concentrating unit (120)