Device for correcting perspective distortions

US5194988A · kind A · utility

Assignee

• Carl Zeiss Stiftung · DE

Inventors

• Werner Flother · Aalen, DE
• Winfried Kaiser · Cologne, DE

Key dates

• Filing date: Aug 30, 1991
• Grant date: Mar 16, 1993
• Expiry date: Aug 30, 2011

Classification

• Technology area (CPC G): Physics
• CPC primary: G03B5/04
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

The invention relates to an arrangement known generally as a PC-adapter or shift adapter. The objective is mounted on one component of the arrangement which can undergo a pivot movement relative to the image format thereby making possible the necessary movement of the objective relative to the image format. The pivot point is disposed as far as possible from the optical axis and outside of the beam pass-through opening of the arrangement.