Color absorption-type filter and method of making
A contrast enhancement filter is produced by photographic reproduction of a master filter on to positive color transparency film. The master filter may be a multilayer thin film optical filter. The developed positive color transparency film may be laminated between a pair of glass sheets with layers...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A contrast enhancement filter is produced by photographic reproduction of a master filter on to positive color transparency film. The master filter may be a multilayer thin film optical filter. The developed positive color transparency film may be laminated between a pair of glass sheets with layers of an ultraviolet absorbing polymer material. |
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