AN INFRARED LENS
The present invention relates to an infrared lens which is coated with an optical film. The substrate (2) is made of germanium material, the first film (3) coated on the substrate (2) is made of zinc sulfide material, the second film (4) is made of germanium material, the third film (5) is made of z...
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| Format: | Patent |
| Sprache: | eng ; fre |
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| Zusammenfassung: | The present invention relates to an infrared lens which is coated with an optical film. The substrate (2) is made of germanium material, the first film (3) coated on the substrate (2) is made of zinc sulfide material, the second film (4) is made of germanium material, the third film (5) is made of zinc sulfide material, the fourth film (6) is made of ytterbium fluoride material and the fifth film (7) is made of zinc sulfide material on the lens (1).
La présente invention concerne une lentille infrarouge qui est recouverte d'un film optique. Le substrat (2) est constitué de germanium, le premier film (3) recouvrant ledit substrat (2) est composé de sulfure de zinc, le deuxième film (4) est constitué de germanium, le troisième film (5) est composé de sulfure de zinc, le quatrième film (6) est composé de fluorure d'ytterbium et le cinquième film (7) est constitué de sulfure de zinc sur la lentille (1). |
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