The invention relates to a sunlight chamber (1), particularly a sunlight sauna or a greenhouse, comprising wall and/or roof regions (3, 4) surrounding an interior (2) and a bottom (11). At least one first (3) wall and/or roof region and/or the bottom (11) is mainly aligned and/or is diffusely reflects visible light and/or infrared radiation and/or UV radiation toward the interior. At least one second (4) of the wall and/or roof regions has a design that is transparent to visible light and/or infrared radiation and/or UV-radiation, at least in sections. At least one or more light rectifiers (5) are arranged on the second wall(s) and/or roof regions (4) such that a narrowest point (6) of the light rectifier (5) is facing the interior (2), wherein the edge regions (7) of the light rectifier (5) are formed by side regions (8) reflecting in a directed manner, particularly designed as mirror surfaces, of mirror components (12) disposed next to each other, wherein the mirror components (12) comprise basic regions (9) facing the interior between which the narrowest points (6) of the light rectifiers (5) are formed, and wherein the basic regions (9) are designed such that they are reflect visible light and/or infrared radiation and/or UV-radiation towards the interior (2) in a mainly directed and/or diffuse fashion. The invention further relates to a sunlight chamber, wherein a concentration arrangement for concentrating sunlight is provided by means of which sunlight can be concentrated in the sunlight chamber.
