G - Physics – 03 – B
Patent
G - Physics
03
B
G03B 21/14 (2006.01) G02B 9/64 (2006.01) G02B 13/08 (2006.01) G03B 21/32 (2006.01)
Patent
CA 2590882
The invention relates to a projection objective (11) with fixed focal length for digital projection. It is characterized by the following features: - a first optical subassembly (15) of several lenses (1, 2, 3, 4) seated in a first objective housing (12), - a second optical subassembly (16) of several lenses (5, 6, 7, 8, 9) seated in a second objective housing (13), - a third objective housing (14) that, in the region of one end, accepts the first objective housing (12) and, in the region of the other end, accepts the second objective housing (13). Such an objective is designed to be structurally simple and makes possible a simple and precise assembly.
Bretthauer Bernward
Linge Horst
Muller Jens
Bci Finanz Ag
Jos. Schneider Optishe Werke Gmbh
Ridout & Maybee Llp
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