WIDE-ANGLE IMAGING LENS

WIDE-ANGLE IMAGING LENS

An optical system (100A to 100D) includes, in order from an enlargement conjugate side to a reduction conjugate side, a front unit (101A to 101D) including a plurality of lenses, an aperture stop (ST), and a rear unit (102A to 102D) including a plurality of lenses. A projection characteristic of the...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KUROKAWA, Shuichi, INOKO, Kazuhiro, TAKAHASHI, Makoto
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Beschreibung
Zusammenfassung:An optical system (100A to 100D) includes, in order from an enlargement conjugate side to a reduction conjugate side, a front unit (101A to 101D) including a plurality of lenses, an aperture stop (ST), and a rear unit (102A to 102D) including a plurality of lenses. A projection characteristic of the optical system representing a relationship between a half angle of view and an image height on an image plane satisfies a predetermined condition.