Franz Schlegel — Lens Patent Author | Surface & Stop

Franz Schlegel6 related patents across 8 interactive lens diagrams.
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Optische Werke G. Rodenstock (6)
Optische Werke G. Rodenstock(6)DE 1 258 134 B↗1968Assignee: Optische Werke G. Rodenstock
Inventors: Franz Schlegel
Example IRODENSTOCK SIRONAR 100mm f/5.6 (original convertible)— 6 ELEMENTS / 4 GROUPS, DESIGN f = 100 mm
DE 2444954 A1↗1976Assignee: Optische Werke G. Rodenstock
Inventors: Franz Schlegel, Josef Weiß
Claim 2RODENSTOCK GRANDAGON-N 90mm f/4.5— 8 ELEMENTS / 4 GROUPS, f′ = 90 mm patent exampleClaim 3RODENSTOCK GRANDAGON-N 75mm f/4.5— 8 elements / 4 groups, f′ = 75 mmClaim 4RODENSTOCK GRANDAGON-N 65mm f/4.5— 8 ELEMENTS / 4 GROUPS, f′ = 65 mm; EFL ≈ 64.83 mm
DE 26 35 415 B1↗1977Assignee: Optische Werke G. Rodenstock
Inventors: Franz Schlegel, Josef Weiß
Claim 1RODENSTOCK GRANDAGON-N 75mm f/6.8— 6 ELEMENTS / 4 GROUPS, f = 75 mm
DE 27 29 831 B1↗1978Assignee: Optische Werke G. Rodenstock
Inventors: Franz Schlegel, Josef Weiß
Sole exampleRODENSTOCK SIRONAR-N 100mm f/5.6— 6 elements / 4 groups, f′ = 99.998 mm, e-line
DE 2818435 B1↗1978Assignee: Optische Werke G. Rodenstock
Inventors: Franz Schlegel, Josef Weiß
Sole exampleRODENSTOCK RODAGON-WA 80mm f/4— 6 elements / 4 groups, f ≈ 79.95 mm (d-line)
DE 28 18 394 B1↗1979Assignee: Optische Werke G. Rodenstock
Inventors: Josef Weiß, Franz Schlegel
Sole exampleRODENSTOCK GERONAR 210mm f/6.8— 3 elements / 3 groups, f' = 210.10 mm (d-line)