Patent ID: 6182402
Filing Date: 2001-02-06
Classification: E06B,G02B

Abstract:
A confinement-cell window attachment for use at a cell in cooperation with a cell window, comprising:(a) a frame enclosure adapted for use with said cell window;(b) means for securing said frame enclosure when said frame enclosure is disposed proximate to said cell window;(c) means for providing a two-way mirror secured to said frame enclosure and when said frame enclosure is disposed proximate to said cell window, said two-way mirror disposed in parallel planar alignment with respect to said cell window and adapted to permit viewing through said two-way mirror when viewed from the outside of said cell and adapted to prevent viewing through said two-way mirror when viewed from the inside of said cell and wherein said two-way mirror provides at least a five to one reduction in light intensity;(d) means for attenuating light disposed in said frame structure and in parallel planar alignment with respect to said two-way mirror and disposed a predetermined distance from said two-way mirror; and(e) means for viewing into said cell.