title: Zoomable kaleidoscopic mirror tunnel.
abstract: Four opposed plane mirrors with adjustable spacing between them will replicate images in a virtual orthogonal pattern with variable spacing. Four plane mirrors forming an adjustable angle square cone will replicate images in a virtual spherical pattern of varying curvature. An adjustable mirror tunnel that can provide both of these changes is described.
authors.forename: J H
authors.initials: JH
authors.lastname: Myer