High speed catadioptric system

A high speed catadioptric system with a first single front lens (L.sub.1), a main mirror lens (M.sub.1) with an unsilvered central portion (L.sub.3), a counter mirror (M.sub.2) and a field lens system (L.sub.2, L.sub.3, L.sub.4), comprising a field lens system containing three optical members (L.sub.1 ;

• L.sub.2,L.sub.3, L.sub.4 ;
• L.sub.5) and composed of the dioptrically effective central portion (L.sub.3) of the main mirror lens and lenses (L.sub.2, L.sub.4) immediately adjacent to said central portion (L.sub.3) on the object side and on the image side, the field lens system being convergent, wherein the elements of the system referred to have the following numerical values:
• ______________________________________ F = 1:1.2 f = 99.723 s' = 0 Radius Thickness n.sub.d v.sub.d ______________________________________ L.sub.1 r.sub.1 = 251.458 d.sub.1 = 7 1.54814 45.8 r.sub.2 = -16077.170 d.sub.2 = 44 M.sub.1 r.sub.3 = -148.447 d.sub.3 = 8 1.54814 45.8 r.sub.4 = -231.310 d.sub.4 = d.sub.3 1.54814 45.8 r.sub.5 = r.sub.3 d.sub.5 = d.sub.2 M.sub.2 r.sub.6 = r.sub.2 d.sub.6 = 39 L.sub.2 r.sub.7 = 40.614 d.sub.7 = 5 1.48450 67.3 r.sub.8 = r.sub.3 d.sub.8 = d.sub.3 L.sub.3 r.sub.8 = r.sub.3 d.sub.8 = d.sub.3 1.54814 45.8 r.sub.9 = r.sub.4 L.sub.4 r.sub.9 = r.sub.4 d.sub.9 = 2 1.84666 23.8 r.sub.10 = -310.907 d.sub.10 = 6.025 L.sub.5 r.sub.11 = .infin. d.sub.11 = 5.6 1.48748 70.4 r.sub.12 = .infin. ______________________________________
• where F is the speed of the system, f is the focal length of the system, s' is the back focal distance and L.sub.5 is a plane plate.

A high speed catadioptric system with a first single front lens (L.sub.1), a main mirror lens (M.sub.1) with an unsilvered central portion (L.sub.3), a counter mirror (M.sub.2) and a field lens system (L.sub.2, L.sub.3, L.sub.4), comprising a field lens system composed of the dioptrically effective central portion (L.sub.3) of the main mirror lens and lenses (L.sub.2, L.sub.4) immediately adjacent to said central portion (L.sub.3) on the object side and on the image side, the field lens system being convergent, a field lens system (L.sub.2, L.sub.3, L.sub.4) with at least one lens (L.sub.4) immediately adjacent to said central portion (L.sub.3) of the main mirror lens (M.sub.1) on the image side, the component (L.sub.4) on the image side being divergent, wherein the elements of the system referred to have the following numerical values:

• ______________________________________ F = 1:1.2 f = 99.558 s' = 9.722 Radius Thickness n.sub.d v.sub.d ______________________________________ L.sub.1 r.sub.1 = 258.418 d.sub.1 = 6 1.54814 45.8 r.sub.2 = -2818.489 d.sub.2 = 43 M.sub.1 r.sub.3 = -140.076 d.sub.3 = 8 1.54814 45.8 r.sub.4 = -220.868 d.sub.4 = d.sub.3 1.54814 45.8 r.sub.5 = r.sub.3 d.sub.5 = d.sub.2 M.sub.2 r.sub.6 = r.sub.2 d.sub.6 = 38 L.sub.2 r.sub.7 = 39.963 d.sub.7 = 5 1.46450 67.3 r.sub.8 = r.sub.3 d.sub.8 = d.sub.3 L.sub.3 r.sub.8 = r.sub.3 d.sub.8 = d.sub.3 1.54814 45.8 r.sub.9 = r.sub.4 L.sub.4 r.sub.9 = r.sub.4 d.sub.9 = 2 1.84666 23.8 r.sub.10 = -333.333 ______________________________________
• where F is the speed of the system, f is the focal length of the system, s' is the back focal distance.

A high speed catadioptric system with a first single front lens (L.sub.1), a main mirror lens (M.sub.1) with an unsilvered central portion (L.sub.3), a counter mirror (M.sub.2) and a field lens system (L.sub.2, L.sub.3, L.sub.4), comprising a field lens system composed of the dioptrically effective central portion (L.sub.3) of the main mirror lens and lenses (L.sub.2, L.sub.4) immediately adjacent to said central portion (L.sub.3) on the object side and on the image side, the field lens system being convergent, a field lens system (L.sub.2, L.sub.3, L.sub.4) with at least one lens (L.sub.4) immediately adjacent to said central portion (L.sub.3) of the main mirror lens (M.sub.1) on the image side, the component (L.sub.4) on the image side being divergent, wherein the elements of the system referred to have the following numerical values:

• ______________________________________ F = 1:1.2 f = 99.834 s' = 9.855 Radius Thickness n.sub.d v.sub.d ______________________________________ L.sub.1 r.sub.1 = 252.742 d.sub.1 = 6 1.54814 45.8 r.sub.2 = -3615.329 d.sub.2 = 43 M.sub.1 r.sub.3 = -140.131 d.sub.3 = 8 1.54814 45.8 r.sub.4 = -222.158 d.sub.4 = d.sub.3 1.54814 45.8 r.sub.5 = r.sub.3 d.sub.5 = d.sub.2 M.sub.2 r.sub.6 = r.sub.2 d.sub.6 = 38 L.sub.2 r.sub.7 = 40.895 d.sub.7 = 5 1.48450 67.3 r.sub.8 = r.sub.3 d.sub.8 = d.sub.3 L.sub.3 r.sub.8 = r.sub.3 d.sub.8 = d.sub.3 1.54814 45.8 r.sub.9 = r.sub.4 L.sub.4 r.sub.9 = r.sub.4 d.sub.9 = 2 1.59551 39.2 r.sub.10 = - 513.875 ______________________________________
• where F is the speed of the system, f is the focal length of the system, s' is the back focal distance.

A high speed catadioptric system with a first single front lens (L.sub.1), a main mirror lens (M.sub.1) with an unsilvered central portion (L.sub.3), a counter mirror (M.sub.2) and a field lens system (L.sub.2, L.sub.3, L.sub.4), comprising a field lens system composed of the dioptrically effective central portion (L.sub.3) of the main mirror lens and lenses (L.sub.2, L.sub.4) immediately adjacent to said central portion (L.sub.3) on the object side and on the image side, the field lens system being convergent, a field lens system (L.sub.2, L.sub.3, L.sub.4) with at least one lens (L.sub.4) immediately adjacent to said central portion (L.sub.3) of the main mirror lens (M.sub.1) on the image side, the component (L.sub.4) on the image side being divergent, wherein the elements of the system referred to have the following numerical values:

• ______________________________________ F = 1:1.2 f = 99.723 s' = 0 Radius Thickness n.sub.d v.sub.d ______________________________________ L.sub.1 r.sub.1 = 251.458 d.sub.1 = 7 1.54814 45.8 r.sub.2 = -16077.170 d.sub.2 = 44 M.sub.1 r.sub.3 = -148.447 d.sub.3 = 8 1.54814 45.8 r.sub.4 = -231.310 d.sub.4 = d.sub.3 1.54814 45.8 r.sub.5 = r.sub.3 d.sub.5 = d.sub.2 M.sub.2 r.sub.6 = r.sub.2 d.sub.6 = 39 L.sub.2 r.sub.7 = 40.614 d.sub.7 = 5 1.48450 67.3 r.sub.8 = r.sub.3 d.sub.8 = d.sub.3 L.sub.3 r.sub.8 = r.sub.3 d.sub.8 = d.sub.3 1.54814 45.8 r.sub.9 = r.sub.4 L.sub.4 r.sub.9 = r.sub.4 d.sub.9 = 2 1.84666 23.8 r.sub.10 = -310.907 d.sub.10 = 6.025 L.sub.5 r.sub.11 = .infin. d.sub.11 = 5.6 1.48748 70.4 r.sub.12 = .infin. ______________________________________
• where F is the speed of the system, f is the focal length of the system, s' is the back focal distance and L.sub.5 is a plane plate.

A high speed catadioptric system with a first single front lens (L.sub.1), a main mirror lens (M.sub.1) with an unsilvered central portion (L.sub.3), a counter mirror (M.sub.2) and a field lens system (L.sub.2, L.sub.3, L.sub.4), comprising a field lens system composed of the dioptrically effective central portion (L.sub.3) of the main mirror lens and lenses (L.sub.2, L.sub.4) immediately adjacent to said central portion (L.sub.3) on the object side and on the image side, the field lens system being convergent, a field lens system (L.sub.2, L.sub.3, L.sub.4) with at least one lens (L.sub.2) immediately adjacent to said central portion (L.sub.3) of the main mirror lens (M.sub.1) on the object side, the component (L.sub.2) on the object side being convergent, wherein the elements of the system referred to have the following numerical values:

• ______________________________________ F = 1:1.2 f = 99.558 s' = 9.722 Radius Thickness n.sub.d v.sub.d ______________________________________ L.sub.1 r.sub.1 = 258.418 d.sub.1 = 6 1.54814 45.8 r.sub.2 = -2818.489 d.sub.2 = 43 M.sub.1 r.sub.3 = -140.076 d.sub.3 = 8 1.54814 45.8 r.sub.4 = -220.868 d.sub.4 = d.sub.3 1.54814 45.8 r.sub.5 = r.sub.3 d.sub.5 = d.sub.2 M.sub.2 r.sub.6 = r.sub.2 d.sub.6 = 38 L.sub.2 r.sub.7 = 39.963 d.sub.7 = 5 1.46450 67.3 r.sub.8 = r.sub.3 d.sub.8 = d.sub.3 L.sub.3 r.sub.8 = r.sub.3 d.sub.8 = d.sub.3 1.54814 45.8 r.sub.9 = r.sub.4 L.sub.4 r.sub.9 = r.sub.4 d.sub.9 = 2 1.84666 23.8 r.sub.10 = -333.333 ______________________________________
• where F is the speed of the system, f is the focal length of the system, s' is the back focal distance.

A high speed catadioptric system with a first single front lens (L.sub.1), a main mirror lens (M.sub.1) with an unsilvered central portion (L.sub.3), a counter mirror (M.sub.2) and a field lens system (L.sub.2, L.sub.3, L.sub.4), comprising a field lens system composed of the dioptrically effective central portion (L.sub.3) of the main mirror lens and lenses (L.sub.2, L.sub.4) immediately adjacent to said central portion (L.sub.3) on the object side and on the image side, the field lens system being convergent, a field lens system (L.sub.2, L.sub.3, L.sub.4) with at least one lens (L.sub.2) immediately adjacent to said central portion (L.sub.3) of the main mirror lens (M.sub.1) on the object side, the component (L.sub.2) on the object side being convergent, wherein the elements of the system referred to have the following numerical values:

• ______________________________________ F = 1:1.2 f = 99.834 s' = 9.855 Radius Thickness n.sub.d v.sub.d ______________________________________ L.sub.1 r.sub.1 = 252.742 d.sub.1 = 6 1.54814 45.8 r.sub.2 = -3615.329 d.sub.2 = 43 M.sub.1 r.sub.3 = -140.131 d.sub.3 = 8 1.54814 45.8 r.sub.4 = -222.158 d.sub.4 = d.sub.3 1.54814 45.8 r.sub.5 = r.sub.3 d.sub.5 = d.sub.2 M.sub.2 r.sub.6 = r.sub.2 d.sub.6 = 38 L.sub.2 r.sub.7 = 40.895 d.sub.7 = 5 1.48450 67.3 r.sub.8 = r.sub.3 d.sub.8 = d.sub.3 L.sub.3 r.sub.8 = r.sub.3 d.sub.8 = d.sub.3 1.54814 45.8 r.sub.9 = r.sub.4 L.sub.4 r.sub.9 = r.sub.4 d.sub.9 = 2 1.59551 39.2 r.sub.10 = - 513.875 ______________________________________
• where F is the speed of the system, f is the focal length of the system, s' is the back focal distance.

A high speed catadioptric system with a first single front lens (L.sub.1), a main mirror lens (M.sub.1) with an unsilvered central portion (L.sub.3), a counter mirror (M.sub.2) and a field lens system (L.sub.2, L.sub.3, L.sub.4), comprising a field lens system containing three optical members (L.sub.1 ;

• L.sub.2,L.sub.3,L.sub.4 ;
• L.sub.5) and composed of the dioptrically effective central portion (L.sub.3) of the main mirror lens and lenses (L.sub.2, L.sub.4) immediately adjacent to said central portion (L.sub.3) on the object side and on the image side, the field lens system being convergent, a field lens system (L.sub.2, L.sub.3, L.sub.4) with at least one lens (L.sub.2) immediately adjacent to said central portion (L.sub.3) of the main mirror lens (M.sub.1) on the object side, the component (L.sub.2) on the object side being convergent, wherein the elements of the system referred to have the following numerical values:
• ______________________________________ F = 1:1.2 f = 99.723 s' = 0 Radius Thickness n.sub.d v.sub.d ______________________________________ L.sub.1 r.sub.1 = 251.458 d.sub.1 = 7 1.54814 45.8 r.sub.2 = -16077.170 d.sub.2 = 44 M.sub.1 r.sub.3 = -148.447 d.sub.3 = 8 1.54814 45.8 r.sub.4 = -231.310 d.sub.4 = d.sub.3 1.54814 45.8 r.sub.5 = r.sub.3 d.sub.5 = d.sub.2 M.sub.2 r.sub.6 = r.sub.2 d.sub.6 = 39 L.sub.2 r.sub.7 = 40.614 d.sub.7 = 5 1.48450 67.3 r.sub.8 = r.sub.3 d.sub.8 = d.sub.3 L.sub.3 r.sub.8 = r.sub.3 d.sub.8 = d.sub.3 1.54814 45.8 r.sub.9 = r.sub.4 L.sub.4 r.sub.9 = r.sub.4 d.sub.9 = 2 1.84666 23.8 r.sub.10 = -310.907 d.sub.10 = 6.025 L.sub.5 r.sub.11 = .infin. d.sub.11 = 5.6 1.48748 70.4 r.sub.12 = .infin. ______________________________________
• where F is the speed of the system, f is the focal length of the system, s' is the back focal distance and L.sub.5 is a plane plate.