Viewing apparatus having oblique illumination,申请号US19970890931-传众专利搜索

Viewing apparatus having oblique illumination

申请公布号：US5838491(A)

申请号：US19970890931

申请日期：1997.07.10

申请公布日期：1998.11.17

申请人：

CARL-ZEISS-STIFTUNG

发明人：GAERTNER, HARTMUT;LEMCKE, ULRICH;LUECKE, CHRISTIAN;STEFFEN, JOACHIM

分类号：G02B21/10;A61B19/00;G02B21/08;(IPC1-7):G02B21/06;G02B21/00

主分类号：G02B21/10

摘要：A viewing arrangement includes an objective (5) having a variable intersection distance and an intersection-distance dependent oblique illumination (7) which is separate from the objective (5). The oblique illumination (7) includes two illuminating beam paths (9, 11) for completely illuminating contoured objects without shadows. The illuminating beam paths (9, 11) are inclined toward each other ahead of the object (13, 16) to be viewed. The mutual inclination of the two illuminating beam paths (9, 11) is dependent upon the particular intersection distance of the objective (5).