Tag Archives: Spring 1995

Tiny Trademarks (Cameras)

Published in Spring 1995 Zeiss Historica Journal

Author: Charles Barringer

See Page 8 – 9.

On many of the glass products of Carl Zeiss Jena and Zeiss Ikon, there are very tiny versions of those firms’ trademarks either etched or molded into the glass itself. It is shown here on photo filters but it also appeared on spectacle lenses.

To go to the Journal itself, click on the year 1995 in the first line above.

Zeiss Ikon’s Statistical Machine

Published in Spring 1995 Zeiss Historica Journal

Author:  Michael Buckland

See Page 6 – 7.

Professor Emanuel Goldberg invented many things but the most interesting  may well be the first electronic document retrieval system which he designed for microfilm but would be analogous to a modern digital application. This article provides a clear narrative on the importance of this concept that was halted due to the advance of the Hitler regime and World War II.

To go to the Journal itself, click on the year 1995 in the first line above.

Zeiss Precision Gauge Blocks

Published in Spring 1996  Zeiss Historica Journal

Author: Nicholas Grossman

See Pages 6 – 7.

Carl Zeiss Jena was always involved with precision measurement and one of their products was a set of Johanneson Gauge Blocks which were “a set of blocks ground to an accuracy of one hundred-thousandth of an inch or better. These solid metal blocks were a crucial tool in the first half of the  20th century in creating the standard for a product of a precise size.

To go to the Journal itself, click on the year 1996 in the first line above.