Carl Zeiss has been involved in research into the interaction between glass and the living human eye for 160 years. The company has been a pioneer in virtually all optical disciplines. Carl Zeiss’ research has given the world numerous inventions and brand new developments, which continue to improve the fields of microscopy, space and camera optics even as we speak. Carl Zeiss’ level of ultra vision competency in visual optics remains undefeated. As someone who wears glasses or contact lenses, you can enjoy all of the benefits of excellent vision thanks to this competency.
The interaction between eyes and spectacles is complex indeed. Thanks to its insight, Carl Zeiss research has what it takes to think outside the box. We make more than just lenses for spectacles. Our aim is to give patients perfect, brilliant vision by creating an optimum dialog between the eye and the visual aid – the lens.
Truly perfect vision is the result of the harmonious interaction between highly evolved optical systems and Mother Nature.
In September 1847, Carl Zeiss (whose actual name was Carl Zeiß) began manufacturing simple microscopes, which were used primarily in preparatory processes. At the time he worked out of his new workshop located in Wagnergasse 32 in the German city of Jena.
Even in these good old days, Zeiß-made tools were superior to those made by others. The fledgling company sold an impressive 23 of these preparation microscopes that very first year. Over the next few years, consistent improvements were made to these models.
This was an amazing achievement considering that all of these devices were made on the basis of a trial and error approach rather than scientific knowledge. This may be hard to believe – but it is a fact and it was also necessary. Of course it was a very time consuming and costly approach.
Another factor to remember is that the overall quality of early microscopes was rather basic and the image depiction was slightly blurry. Carl Zeiss expected more from his products and discovered early on - as mechanisation progressed and early industrial production began – that it was essential to combine science and manufacturing to be able to produce high performance tools efficiently.
In 1866, with the goal of developing improved microscopic lenses, he contacted physician and mathematician Dr. phil. Ernst Abbé, who was 26 years old at the time and also taught at the University of Jena after the 1000th microscope had just left the Zeiss workshop.
The partnership of these two ingenious brains developed unimaginable technology over the years that followed. Based on the diffraction theory (wave optics), Abbé came up with the new theory of image development in microscopes. The thesis was published in 1873. Abbé used his theory to calculate the parameters for new microscopic lenses.
Ultimately, Abbé placed the production of lenses on a completely scientific basis when he designed measuring devices that were essential for the manufacturing of lenses boasting consistently high quality standards.
Even in his early work, Abbé was already aware of the fact that microscopic lenses could only be perfected and unravel their full potential if new types of glass were used. To achieve this, he invited glass chemist Otto Schott to come to Jena in 1882. Zeiss and Abbé become partners in the newly established glass technology laboratory Schott & Genossen in 1884. The foundation of this company also marked the creation of the basis for modern high performance optics.
Koch is considered the founder of modern bacteriology. A country family doctor, he discovered the tuberculosis bacteria cholera virus in the 1880s. “Many of my achievements were only possible thanks to your excellent microscopes,” Koch states in a letter to Zeiss. In 1904 he was given the 10,000th homogenous immersion lens as a gift.
The Göttingen-based professor did groundbreaking work in the field of colloid chemistry. He invented the ultra microscope in 1903, the membrane filter in 1918 and the ultra fine filter in 1922. The ultra-microscopy (according to Siedentopf/Zsigmondy) makes tiny particles visible whose linear expansions are actually below the resolution limit.
In 1930, while performing experiments with reflection grills, the Dutch physicist discovered that he was able to observe the phase level of the individual light rays. He decided to try to transfer this finding to the microscope. In partnership with ZEISS, he developed the first phase contrasting microscope. The prototype was completed in 1936. It allows scientists to study living cells without harming them with chemical dyes.
A bio physicist and the founder of the Max-Planck-Institute for Bio-Physical Chemistry in Göttingen, Eigen developed a single molecule verification process. In cooperation with his Swedish colleague Rudolf Riegler and with companies EVOTEC and Carl Zeiss, he produced the first commercially available fluorescence co-relation spectrometer ConfoCor in 1995.
At the Max-Planck-Institute in Göttingen he and Professor Sakmann discovered the basic mechanisms of cell communication. The process also included the performance of electro-physiological experiments on ion channels using the Patch-Clamp technique.
For the visual checks performed during the above experiments, the two scientists had to be able to rely on images depicting superior contrasts and with a high optical resolution. They used upright microscopes – all of which were supplied by Carl Zeiss – that had been specifically designed for these applications.
The borders are opening and disappearing. New dimensions are beginning to emerge – dimensions that would have been the stuff of science fiction movies only a few years ago. The technological possibilities of ultra-modern microscopy are still immense and much remains unused. Tele-microscopy around the globe; digital communication at the speed of light. Three dimensional image series with high resolutions, excellent contrast in real time.
Paintings by Vincent van Gogh fetch amazing sums at galleries and auctions now – prices the artist could not even have dreamed of during his lifetime. After spending time in Antwerp and Paris, the illustrious artist painted 187 pictures in the small Provence town Arles in a period of only 16 months. This creative phase is marked by the characteristic blue and yellow colours that are identified with the South of France, which appear in all of these paintings. However, some people believe that van Gogh may not have painted all of the paintings from that era that are said to be his.
A research project is underway to determine the facts. Carl Zeiss employees are looking into the authenticity of these paintings in partnership with the Van Gogh Museum Amsterdam and the Shell Oil Corporation.
Micro structures, pigments and the foundations on the paintings indicate who the creator of these paintings really was. Researchers are working with a Carl Zeiss transmission electron microscope (TEM) to analyse ultra thin pieces of loosened paint particles. The result can render alleged van Gogh paintings worthless in a heartbeat.
How does this process work? An ion beam cuts microscopically small pieces from the material in the form of cross sections. Placed under the TEM, the prepared specimen can be examined using a special analytical process that can determine the precise composition of the materials in the sample
What did the researchers find out? Van Gogh preferred to use a white lead pigment base blended with parchment white. The TEM makes it possible to recognise the individual material preferences and painting techniques of an artist 120 years after a painting was completed.