Spatially selective optical system
An optical system in which a light image of an original document is filtered to form a single color light image which is transmitted through a photochromic filter. The photochromic filter is responsive to the intensity of the single color light image to automatically regulate the intensity of the si...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | An optical system in which a light image of an original document is filtered to form a single color light image which is transmitted through a photochromic filter. The photochromic filter is responsive to the intensity of the single color light image to automatically regulate the intensity of the single color light image transmitted therethrough. |
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