| 摘要 |
The invention relates to hybrid optic having an optical glass element and a holder made of plastic, wherein at least one contact section of the glass element contacts the holder. In a first application example of the invention, the holder is made of one of the following resistant plastics: ETFE, ECTFE, PCTFE, PA, PPO, PE, PMMA, PP, PS, PES, PTFE, PFA, PVC or PMP. In a second application example of the invention, the glass element is made of quartz glass or phosphate glass or of alkali-free glass or it exhibits a barrier layer as a diffusion block for alkali and earth-alkaline metals. Fewer alkali and earth-alkaline metals diffuse out of such types of glass elements. In the method according to the invention for increasing the durability of hybrid optics that exhibit a glass element and a holder made of plastic, wherein at least one contact section of the glass element contacts the holder, the glass element is heat-deformed in an oxygenated atmosphere or alkali and earth-alkaline metals are removed at least from the contact sections of the glass element before coating of the glass element by the plastic of the holder. Fewer alkali and earth-alkaline metals also diffuse out of such types of glass elements, so that the plastic of the holder is less affected. In both variants of the hybrid optic according to the invention and in the production method for hybrid optics according to the invention, a weakness of the plastic of the holder is prevented, resulting in the hybrid optic according to the invention exhibiting improved durability and resistance. |
