Objective lens system for large format scanner

Objective lens system for large format scanner

The lens system has six lens elements, provided by a converging lens (L1), a second converging lens (L2) and a diverging lens (L3) which are bonded together, a further converging lens (L4) and a meniscus lens (L5) bonded to the sixth lens (L6). A light stop (7) is inserted between the first three le...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: SCHAUS, UDO, 55596 WALDBOECKELHEIM, DE
Format: Patent
Sprache:eng ; ger
Schlagworte:
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Beschreibung
Zusammenfassung:The lens system has six lens elements, provided by a converging lens (L1), a second converging lens (L2) and a diverging lens (L3) which are bonded together, a further converging lens (L4) and a meniscus lens (L5) bonded to the sixth lens (L6). A light stop (7) is inserted between the first three lenses and the second three lenses, with a table defining the radius of curvature of each lens surface, the thickness of each lens and the relative spacings between the lenses, the refractive index of each lens and the Abbe number of each lens.