Light-reducing devices and methods of use

A light-reducing device removably attachable to a window through which light is able to pass, the light-reducing device comprising:

• a perimeter surrounding a central region of the light-reducing device;
• a tinted flexible transparent sheet and a microsuction tape adhered to the tinted flexible transparent sheet adjacent the perimeter of the light-reducing device, the microsuction tape comprising a foam layer having a surface in which micrometer-sized cavities are formed that create a vacuum when the surface is pressed against a window, at least the surface of the tape being formed of a material that is sufficiently pliable and elastic so that each of the cavities forms a seal against the window and individual vacuums created between the surface and the window releasably secure the light-reducing device to the window when subjected to only the weight of the light-reducing device, but the light-reducing device can be peeled from the window;
• and
• an optically clear layer that is bonded to the tinted flexible transparent sheet, has a visible light transmission of about 90% or more, and is more rigid than the tinted flexible transparent sheet;
• wherein the microsuction tape has at least one gap therein at the perimeter of the light-reducing device but is otherwise continuous along the perimeter of the light-reducing device, and the microsuction tape is located only at the perimeter so as to not obscure any portion of the central region of the light-reducing device.