OPTICAL OBJECTIVES

Brand Owner (click to sort) Address Description
APERGON AMERICAN OPTICAL COMPANY SOUTHBRIDGE MA OPTICAL OBJECTIVES;
APOTAL TAYLOR,TAYLOR & HOBSON LIMITED 104 STOUGHTON STREET LEICESTER OPTICAL OBJECTIVES;
FILMOVARA BELL & HOWELL COMPANY Chicago IL OPTICAL OBJECTIVES;
ISCO ISCO OPTISCHE WERKE GMBH GOTTINGEN-WEENDE Germany OPTICAL OBJECTIVES;
ISCO ISCO OPTISCHE WERKE GMBH GOTTINGEN-WEENDE Germany OPTICAL OBJECTIVES;
ISCO JOS. SCHNEIDER OPTISCHE WERKE KREUZNACHGMBH & CO. KG RINGSTRASSE 132 D-6550 BAD KREUZNACH Germany OPTICAL OBJECTIVES;
TELE-VARIOGON JOS. SCHNEIDER OPTISCHE WERKE KREUZNACHGMBH & CO. KG RINGSTRASSE 132 D-6550 BAD KREUZNACH Germany OPTICAL OBJECTIVES;
TELE-VARIOGON JOS. SCHNEIDER & CO. OPTISCHE WERKEKREUZNACH P.O. BOX 947 6550 BAD KREUZNACH RHINELAND Germany OPTICAL OBJECTIVES;
VARIOGON JOS. SCHNEIDER OPTISCHE WERKE KREUZNACHGMBH & CO. KG RINGSTRASSE 132 D-6550 BAD KREUZNACH Germany OPTICAL OBJECTIVES;
VARIOGON JOS. SCHNEIDER & CO., OPTISCHE WERKE KREUZNACH P.O. BOX 947 6550 BAD KREUZNACH, RHINELAND Germany OPTICAL OBJECTIVES;
 

Where the owner name is not linked, that owner no longer owns the brand

    
Technical Examples
  1. A projection system for imaging an object field onto an image field, including at least two partial objectives (S1, S2); at least one intermediate image field between the partial objectives (S1, S2); and a concave reflector (119, 219) having a concave reflecting surface. The concave reflecting surface crosses an optical axis of the projection system proximate along the optical axis to the intermediate image field. Alternatively or in addition, the concave reflecting surface crosses an optical axis of the projection system at a position where the condition |HCR/HMR|?2 is met, with HCR being a chief ray height and HMR being a marginal ray height with respect to the optical axis. Alternatively or in addition, the concave reflecting surface crosses an optical axis of the projection system at a position where the condition: d=y*L is met, with d being an axial distance from the concave reflecting surface to the intermediate image field, and with L being the total geometrical light path travelled by a light beam along the optical axis from the object field to the image field, wherein y ranges from 0 to 0.10.