Compact optical system

Details Compact optical system Compact optical system

G - Physics

02

B

88/96

G02B 17/08 (2006.01) G02B 27/00 (2006.01)

Patent

CA 1160488

ABSTRACT An improved, compact optical system comprising a concave primary mirror and a convex secondary mirror. The primary mirror converges radiation to the secondary mirror. The secondary mirror comprises a lens having a first and a second surface. The second surface is coated with reflective material. The radiation received by the lens is refracted at the first surface, reflected back from the second surface and then refracted once again by the first surface. The first and second surfaces have a shape for providing control of field curvature.

388788

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