Process and device for photographing microscopic objects

US4837595A · kind A · utility

Assignee

• Ernst Leitz Wetzlar, GmbH · DE

Inventors

• Herbert Leiter · Wetzlar, DE
• Herbert Koch
• Andreas Hund · Rosdorf, DE
• Guenter Reinheimer · Biebertal, DE

Key dates

• Filing date: Mar 9, 1988
• Grant date: Jun 6, 1989
• Expiry date: Mar 9, 2008

Classification

• Technology area (CPC G): Physics
• CPC primary: G03B17/48
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A process for photographing microscopic objects with consideration of exposure time values to be determined and for making visible a spatially variable measurement spot and an exposure format making before and after the exposure is indicated, which process proceeds according to the process steps which are prescribed in accordance with the claims. In addition to this, a microphotographic device for carrying out the process or processes, having a microscope tube with return mirror device and a photographic eyepiece, downstream of which there are disposed a device for measuring the brightness of an object detail as well as markings to make visible at least one detail measurement field and the image field of a camera in the observation beam path, the detail measurement field being adjustably constructed in the functional plane, which is a plane conjugate with the eyepiece intermediate image, in the region associated with the entire image field, and the detail measurement diaphragm being disposed in a first illumination beam path, as well as a carrier containing the image field marking being disposed in a second illumination beam path, and a first beam splitter combining the two illumin…