Abstract: An arcuately deployable blind for arched frame windows includes a base, a pivot mounted to the base and positionable over a center of curvature of a window frame of the arched frame window, and a slide arm, rotatably mounted at first end to the pivot. An arcuate guide secured to the base. An arcuately deployable pleated blind has first and second parallel longitudinal sides and first and second parallel transverse edges. The edges extend generally at right angles to, and contiguous with the sides. A follower on the pleated blind is in sliding cooperation with the guide. The first edge of the blind is fastened to the base. The second edge of the blind is slidably fastened to the slide arm. An actuator deploys and retracts the blind.