Another seminal maker lost to the purview of recent generations, J.H. Dallmeyer was destined for entanglement in the fate of its internecine rival, A. Ross. John Henry Dallmeyer was the son-in-law of Andrew Ross, and was employed initially in the company’s workshop, then as a scientific advisor. Following the death of Andrew Ross in 1858, …
Almost a century and a half of optical engineering: from taking lenses to sunglasses; from Rodenstock to Linos to Qioptiq to Excelitas. Rodenstock lenses and lens cells can be dated as follows: 50 000 1910 200 000 1920 400 000 1930 700 000 1935 900 000 1938 950 000 1940 2 000 000 1945 2 …
Jos. Schneider Optische Werke has been a major player in global lens manufacture during our lifetime; it’s therefore strange to think of the company as a relative newcomer: ‘only’ being established in 1913 – almost forty years younger than their rivals Rodenstock. And yet within twelve months, Schneider released the first of many Symmar lenses, …