OPTICAL REFLECTOR Russian patent published in 1995 - IPC

FIELD: optical instrument engineering. SUBSTANCE: optical reflector has substrate and prismatic elements attached to the substrate. There is mirror coating onto flat external faces of the prismatic elements. Ancillary flat surface is made at some angle to mirror surface and is connected with flat surface of the substrate. Ancillary surfaces of prismatic elements and surface of the substrate should be made spherical for connecting with the substrate of the prismatic elements of hollow reflectors. These spherical surfaces should have identical radiuses of curvature, which are different in sign. Optically transparent material is offered for the purpose. Errors may be corrected, which take place when making double-side angles of prismatic elements due to sliding of spherical surfaces one along the other when fastening prisms together. EFFECT: improved precision. 2 cl, 4 dwg