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Inventor: K/a/ mmerer; Joachim
Address: Oberkochen, DE
No. of patents: 1
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 4668048 |
Thermal insulation for heat sensitive lens elements |
May 26, 1987 |
| A long focal length or telephoto lens for photographic purposes has an optical element with a high coefficient of thermal expansion, and special features to impede transmission of heat to this element when the housing of the lens becomes heated by rays of the sun. A thermal insulation |
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